/// <summary>
/// Main entry point for lifting; called by both the expression-transform
/// and the block transform.
/// </summary>
ILInstruction Lift(ILInstruction ifInst, ILInstruction condition, ILInstruction trueInst, ILInstruction falseInst)
{
// ifInst is usually the IfInstruction to which condition belongs;
// but can also be a BinaryNumericInstruction.
while (condition.MatchLogicNot(out var arg))
{
condition = arg;
ExtensionMethods.Swap(ref trueInst, ref falseInst);
}
if (context.Settings.NullPropagation && !NullPropagationTransform.IsProtectedIfInst(ifInst as IfInstruction))
{
var nullPropagated = new NullPropagationTransform(context)
.Run(condition, trueInst, falseInst)?.WithILRange(ifInst);
if (nullPropagated != null)
{
return(nullPropagated);
}
}
if (!context.Settings.LiftNullables)
{
return(null);
}
if (AnalyzeCondition(condition))
{
// (v1 != null && ... && vn != null) ? trueInst : falseInst
// => normal lifting
return(LiftNormal(trueInst, falseInst)?.WithILRange(ifInst));
}
if (MatchCompOrDecimal(condition, out var comp))
{
// This might be a C#-style lifted comparison
// (C# checks the underlying value before checking the HasValue bits)
if (comp.Kind.IsEqualityOrInequality())
{
// for equality/inequality, the HasValue bits must also compare equal/inequal
if (comp.Kind == ComparisonKind.Inequality)
{
// handle inequality by swapping one last time
ExtensionMethods.Swap(ref trueInst, ref falseInst);
}
if (falseInst.MatchLdcI4(0))
{
// (a.GetValueOrDefault() == b.GetValueOrDefault()) ? (a.HasValue == b.HasValue) : false
// => a == b
return(LiftCSharpEqualityComparison(comp, ComparisonKind.Equality, trueInst)
?? LiftCSharpUserEqualityComparison(comp, ComparisonKind.Equality, trueInst));
}
else if (falseInst.MatchLdcI4(1))
{
// (a.GetValueOrDefault() == b.GetValueOrDefault()) ? (a.HasValue != b.HasValue) : true
// => a != b
return(LiftCSharpEqualityComparison(comp, ComparisonKind.Inequality, trueInst)
?? LiftCSharpUserEqualityComparison(comp, ComparisonKind.Inequality, trueInst));
}
else if (IsGenericNewPattern(comp.Left, comp.Right, trueInst, falseInst))
{
// (default(T) == null) ? Activator.CreateInstance<T>() : default(T)
// => Activator.CreateInstance<T>()
return(trueInst);
}
}
else
{
// Not (in)equality, but one of < <= > >=.
// Returns false unless all HasValue bits are true.
if (falseInst.MatchLdcI4(0) && AnalyzeCondition(trueInst))
{
// comp(lhs, rhs) ? (v1 != null && ... && vn != null) : false
// => comp.lifted[C#](lhs, rhs)
return(LiftCSharpComparison(comp, comp.Kind));
}
else if (trueInst.MatchLdcI4(0) && AnalyzeCondition(falseInst))
{
// comp(lhs, rhs) ? false : (v1 != null && ... && vn != null)
return(LiftCSharpComparison(comp, comp.Kind.Negate()));
}
}
}
ILVariable v;
// Handle equality comparisons with bool?:
if (MatchGetValueOrDefault(condition, out v) &&
NullableType.GetUnderlyingType(v.Type).IsKnownType(KnownTypeCode.Boolean))
{
if (MatchHasValueCall(trueInst, v) && falseInst.MatchLdcI4(0))
{
// v.GetValueOrDefault() ? v.HasValue : false
// ==> v == true
context.Step("NullableLiftingTransform: v == true", ifInst);
return(new Comp(ComparisonKind.Equality, ComparisonLiftingKind.CSharp,
StackType.I4, Sign.None,
new LdLoc(v).WithILRange(trueInst),
new LdcI4(1).WithILRange(falseInst)
).WithILRange(ifInst));
}
else if (trueInst.MatchLdcI4(0) && MatchHasValueCall(falseInst, v))
{
// v.GetValueOrDefault() ? false : v.HasValue
// ==> v == false
context.Step("NullableLiftingTransform: v == false", ifInst);
return(new Comp(ComparisonKind.Equality, ComparisonLiftingKind.CSharp,
StackType.I4, Sign.None,
new LdLoc(v).WithILRange(falseInst),
trueInst // LdcI4(0)
).WithILRange(ifInst));
}
else if (MatchNegatedHasValueCall(trueInst, v) && falseInst.MatchLdcI4(1))
{
// v.GetValueOrDefault() ? !v.HasValue : true
// ==> v != true
context.Step("NullableLiftingTransform: v != true", ifInst);
return(new Comp(ComparisonKind.Inequality, ComparisonLiftingKind.CSharp,
StackType.I4, Sign.None,
new LdLoc(v).WithILRange(trueInst),
falseInst // LdcI4(1)
).WithILRange(ifInst));
}
else if (trueInst.MatchLdcI4(1) && MatchNegatedHasValueCall(falseInst, v))
{
// v.GetValueOrDefault() ? true : !v.HasValue
// ==> v != false
context.Step("NullableLiftingTransform: v != false", ifInst);
return(new Comp(ComparisonKind.Inequality, ComparisonLiftingKind.CSharp,
StackType.I4, Sign.None,
new LdLoc(v).WithILRange(falseInst),
new LdcI4(0).WithILRange(trueInst)
).WithILRange(ifInst));
}
}
// Handle & and | on bool?:
if (trueInst.MatchLdLoc(out v))
{
if (MatchNullableCtor(falseInst, out var utype, out var arg) &&
utype.IsKnownType(KnownTypeCode.Boolean) && arg.MatchLdcI4(0))
{
// condition ? v : (bool?)false
// => condition & v
context.Step("NullableLiftingTransform: 3vl.bool.and(bool, bool?)", ifInst);
return(new ThreeValuedBoolAnd(condition, trueInst).WithILRange(ifInst));
}
if (falseInst.MatchLdLoc(out var v2))
{
// condition ? v : v2
if (MatchThreeValuedLogicConditionPattern(condition, out var nullable1, out var nullable2))
{
// (nullable1.GetValueOrDefault() || (!nullable2.GetValueOrDefault() && !nullable1.HasValue)) ? v : v2
if (v == nullable1 && v2 == nullable2)
{
context.Step("NullableLiftingTransform: 3vl.bool.or(bool?, bool?)", ifInst);
return(new ThreeValuedBoolOr(trueInst, falseInst).WithILRange(ifInst));
}
else if (v == nullable2 && v2 == nullable1)
{
context.Step("NullableLiftingTransform: 3vl.bool.and(bool?, bool?)", ifInst);
return(new ThreeValuedBoolAnd(falseInst, trueInst).WithILRange(ifInst));
}
}
}
}
else if (falseInst.MatchLdLoc(out v))
{
if (MatchNullableCtor(trueInst, out var utype, out var arg) &&
utype.IsKnownType(KnownTypeCode.Boolean) && arg.MatchLdcI4(1))
{
// condition ? (bool?)true : v
// => condition | v
context.Step("NullableLiftingTransform: 3vl.logic.or(bool, bool?)", ifInst);
return(new ThreeValuedBoolOr(condition, falseInst).WithILRange(ifInst));
}
}
return(null);
}
private void HandleType(ResolveResult resolveOperator, string variable, string op_name, KnownTypeCode typeCode)
{
if (this.AssignmentExpression.Operator == AssignmentOperatorType.Assign)
{
if (variable != null)
{
this.Write(variable);
}
else
{
new ExpressionListBlock(this.Emitter, new Expression[] { this.AssignmentExpression.Right }, null, null, 0).Emit();
}
return;
}
var orr = resolveOperator as OperatorResolveResult;
var method = orr != null ? orr.UserDefinedOperatorMethod : null;
var assigmentType = Helpers.TypeOfAssignment(this.AssignmentExpression.Operator);
if (orr != null && method == null)
{
var name = Helpers.GetBinaryOperatorMethodName(assigmentType);
var type = NullableType.IsNullable(orr.Type) ? NullableType.GetUnderlyingType(orr.Type) : orr.Type;
method = type.GetMethods(m => m.Name == name, GetMemberOptions.IgnoreInheritedMembers).FirstOrDefault();
}
if (method != null)
{
var inline = this.Emitter.GetInline(method);
if (orr.IsLiftedOperator)
{
this.Write(JS.Types.SYSTEM_NULLABLE + ".");
string action = JS.Funcs.Math.LIFT2;
this.Write(action);
this.WriteOpenParentheses();
this.WriteScript(op_name);
this.WriteComma();
if (variable != null)
{
new ExpressionListBlock(this.Emitter, new Expression[] { this.AssignmentExpression.Left }, null, null, 0).Emit();
}
else
{
new ExpressionListBlock(this.Emitter, new Expression[] { this.AssignmentExpression.Left, this.AssignmentExpression.Right }, null, null, 0).Emit();
}
this.AddOveflowFlag(typeCode, op_name);
this.WriteCloseParentheses();
}
else if (!string.IsNullOrWhiteSpace(inline))
{
new InlineArgumentsBlock(this.Emitter,
new ArgumentsInfo(this.Emitter, this.AssignmentExpression, orr, method), inline).Emit();
}
else if (!this.Emitter.Validator.IsExternalType(method.DeclaringTypeDefinition))
{
this.Write(BridgeTypes.ToJsName(method.DeclaringType, this.Emitter));
this.WriteDot();
this.Write(OverloadsCollection.Create(this.Emitter, method).GetOverloadName());
this.WriteOpenParentheses();
if (variable != null)
{
new ExpressionListBlock(this.Emitter, new Expression[] { this.AssignmentExpression.Left }, null, null, 0).Emit();
this.Write(", " + variable);
}
else
{
new ExpressionListBlock(this.Emitter, new Expression[] { this.AssignmentExpression.Left, this.AssignmentExpression.Right }, null, null, 0).Emit();
}
this.WriteCloseParentheses();
}
}
else
{
if (orr.IsLiftedOperator)
{
this.Write(JS.Types.SYSTEM_NULLABLE + ".");
string action = JS.Funcs.Math.LIFT2;
this.Write(action);
this.WriteOpenParentheses();
this.WriteScript(op_name);
this.WriteComma();
if (variable != null)
{
new ExpressionListBlock(this.Emitter, new Expression[] { this.AssignmentExpression.Left }, null, null, 0).Emit();
}
else
{
new ExpressionListBlock(this.Emitter, new Expression[] { this.AssignmentExpression.Left, this.AssignmentExpression.Right }, null, null, 0).Emit();
}
this.AddOveflowFlag(typeCode, op_name);
this.WriteCloseParentheses();
}
else
{
this.AssignmentExpression.Left.AcceptVisitor(this.Emitter);
this.WriteDot();
this.Write(op_name);
this.WriteOpenParentheses();
this.AssignmentExpression.Right.AcceptVisitor(this.Emitter);
this.AddOveflowFlag(typeCode, op_name);
this.WriteCloseParentheses();
}
}
}
public static string ToJavascriptName(IType type, IEmitter emitter)
{
if (type.Kind == TypeKind.Delegate)
{
var delegateName = BridgeTypes.ConvertName(type.FullName);
if (!emitter.JsDoc.Callbacks.Contains(delegateName))
{
var method = type.GetDelegateInvokeMethod();
JsDocComment comment = new JsDocComment();
var parameters = method.Parameters;
if (parameters != null && parameters.Count > 0)
{
foreach (var param in parameters)
{
var jsParam = new JsDocParam();
jsParam.Name = param.Name;
jsParam.Type = XmlToJsDoc.ToJavascriptName(param.Type, emitter);
comment.Parameters.Add(jsParam);
}
}
comment.Returns.Add(new JsDocParam
{
Type = XmlToJsDoc.ToJavascriptName(method.ReturnType, emitter)
});
comment.Callback = delegateName;
comment.MemberOf = type.Namespace;
if (!emitter.JsDoc.Namespaces.Contains(type.Namespace))
{
emitter.JsDoc.Namespaces.Add(type.Namespace);
comment.Namespace = type.Namespace;
}
emitter.JsDoc.Callbacks.Add(delegateName);
emitter.Output.Insert(0, comment.ToString() + newLine + newLine);
}
return(delegateName);
}
if (type.IsKnownType(KnownTypeCode.String))
{
return("string");
}
if (type.IsKnownType(KnownTypeCode.Boolean))
{
return("boolean");
}
if (type.IsKnownType(KnownTypeCode.Void))
{
return("void");
}
if (type.IsKnownType(KnownTypeCode.Byte) ||
type.IsKnownType(KnownTypeCode.Char) ||
type.IsKnownType(KnownTypeCode.Decimal) ||
type.IsKnownType(KnownTypeCode.Double) ||
type.IsKnownType(KnownTypeCode.Int16) ||
type.IsKnownType(KnownTypeCode.Int32) ||
type.IsKnownType(KnownTypeCode.Int64) ||
type.IsKnownType(KnownTypeCode.SByte) ||
type.IsKnownType(KnownTypeCode.Single) ||
type.IsKnownType(KnownTypeCode.UInt16) ||
type.IsKnownType(KnownTypeCode.UInt32) ||
type.IsKnownType(KnownTypeCode.UInt64))
{
return("number");
}
if (type.Kind == TypeKind.Array)
{
ICSharpCode.NRefactory.TypeSystem.ArrayType arrayType = (ICSharpCode.NRefactory.TypeSystem.ArrayType)type;
return("Array.<" + XmlToJsDoc.ToJavascriptName(arrayType.ElementType, emitter) + ">");
}
if (type.Kind == TypeKind.Dynamic)
{
return("object");
}
if (type.Kind == TypeKind.Enum && type.DeclaringType != null)
{
return("number");
}
if (NullableType.IsNullable(type))
{
return("?" + XmlToJsDoc.ToJavascriptName(NullableType.GetUnderlyingType(type), emitter));
}
BridgeType bridgeType = emitter.BridgeTypes.Get(type, true);
//string name = BridgeTypes.ConvertName(type.FullName);
var name = type.Namespace;
var hasTypeDef = bridgeType != null && bridgeType.TypeDefinition != null;
if (hasTypeDef)
{
var typeDef = bridgeType.TypeDefinition;
if (typeDef.IsNested)
{
name = (string.IsNullOrEmpty(name) ? "" : (name + ".")) + BridgeTypes.GetParentNames(typeDef);
}
name = (string.IsNullOrEmpty(name) ? "" : (name + ".")) + BridgeTypes.ConvertName(typeDef.Name);
}
else
{
if (type.DeclaringType != null)
{
name = (string.IsNullOrEmpty(name) ? "" : (name + ".")) + BridgeTypes.GetParentNames(type);
if (type.DeclaringType.TypeArguments.Count > 0)
{
name += "$" + type.TypeArguments.Count;
}
}
name = (string.IsNullOrEmpty(name) ? "" : (name + ".")) + BridgeTypes.ConvertName(type.Name);
}
bool isCustomName = false;
if (bridgeType != null)
{
name = BridgeTypes.AddModule(name, bridgeType, out isCustomName);
}
if (!hasTypeDef && !isCustomName && type.TypeArguments.Count > 0)
{
name += "$" + type.TypeArguments.Count;
}
return(name);
}
protected void VisitBinaryOperatorExpression()
{
BinaryOperatorExpression binaryOperatorExpression = this.BinaryOperatorExpression;
var resolveOperator = this.Emitter.Resolver.ResolveNode(binaryOperatorExpression, this.Emitter);
var expectedType = this.Emitter.Resolver.Resolver.GetExpectedType(binaryOperatorExpression);
bool isDecimalExpected = Helpers.IsDecimalType(expectedType, this.Emitter.Resolver);
bool isDecimal = Helpers.IsDecimalType(resolveOperator.Type, this.Emitter.Resolver);
bool isLongExpected = Helpers.Is64Type(expectedType, this.Emitter.Resolver);
bool isLong = Helpers.Is64Type(resolveOperator.Type, this.Emitter.Resolver);
OperatorResolveResult orr = resolveOperator as OperatorResolveResult;
var leftResolverResult = this.Emitter.Resolver.ResolveNode(binaryOperatorExpression.Left, this.Emitter);
var rightResolverResult = this.Emitter.Resolver.ResolveNode(binaryOperatorExpression.Right, this.Emitter);
var charToString = -1;
string variable = null;
bool leftIsNull = this.BinaryOperatorExpression.Left is NullReferenceExpression;
bool rightIsNull = this.BinaryOperatorExpression.Right is NullReferenceExpression;
bool isUint = resolveOperator.Type.IsKnownType(KnownTypeCode.UInt16) ||
resolveOperator.Type.IsKnownType(KnownTypeCode.UInt32) ||
resolveOperator.Type.IsKnownType(KnownTypeCode.UInt64);
var isFloatResult = Helpers.IsFloatType(resolveOperator.Type, this.Emitter.Resolver);
var leftExpected = this.Emitter.Resolver.Resolver.GetExpectedType(binaryOperatorExpression.Left);
var rightExpected = this.Emitter.Resolver.Resolver.GetExpectedType(binaryOperatorExpression.Right);
var strictNullChecks = this.Emitter.AssemblyInfo.StrictNullChecks;
if (orr != null && orr.Type.IsKnownType(KnownTypeCode.String))
{
for (int i = 0; i < orr.Operands.Count; i++)
{
var crr = orr.Operands[i] as ConversionResolveResult;
if (crr != null && crr.Input.Type.IsKnownType(KnownTypeCode.Char))
{
charToString = i;
}
}
}
if (resolveOperator is ConstantResolveResult)
{
this.WriteScript(((ConstantResolveResult)resolveOperator).ConstantValue);
return;
}
var resultIsString = expectedType.IsKnownType(KnownTypeCode.String) || resolveOperator.Type.IsKnownType(KnownTypeCode.String);
var isStringConcat = resultIsString && binaryOperatorExpression.Operator == BinaryOperatorType.Add;
var toStringForLeft = false;
var toStringForRight = false;
if (charToString == -1 && isStringConcat && !leftResolverResult.Type.IsKnownType(KnownTypeCode.String))
{
toStringForLeft = true;
}
if (charToString == -1 && isStringConcat && !rightResolverResult.Type.IsKnownType(KnownTypeCode.String))
{
toStringForRight = true;
}
if (!isStringConcat && (Helpers.IsDecimalType(leftResolverResult.Type, this.Emitter.Resolver) || Helpers.IsDecimalType(rightResolverResult.Type, this.Emitter.Resolver)))
{
isDecimal = true;
isDecimalExpected = true;
}
if (isDecimal && isDecimalExpected && binaryOperatorExpression.Operator != BinaryOperatorType.NullCoalescing)
{
this.HandleDecimal(resolveOperator);
return;
}
var isLeftLong = Helpers.Is64Type(leftExpected, this.Emitter.Resolver);
var isRightLong = Helpers.Is64Type(rightExpected, this.Emitter.Resolver);
if (!isLeftLong && !isRightLong)
{
if (leftExpected.Kind == TypeKind.Enum && Helpers.Is64Type(leftExpected.GetDefinition().EnumUnderlyingType, this.Emitter.Resolver))
{
isLeftLong = true;
}
if (rightExpected.Kind == TypeKind.Enum && Helpers.Is64Type(rightExpected.GetDefinition().EnumUnderlyingType, this.Emitter.Resolver))
{
isRightLong = true;
}
}
if (!(resultIsString && binaryOperatorExpression.Operator == BinaryOperatorType.Add) && (isLeftLong || isRightLong))
{
isLong = true;
isLongExpected = true;
}
if (isLong && isLongExpected && binaryOperatorExpression.Operator != BinaryOperatorType.NullCoalescing)
{
if (!isFloatResult || binaryOperatorExpression.Operator == BinaryOperatorType.Divide && isLeftLong)
{
this.HandleLong(resolveOperator, isUint);
return;
}
}
var delegateOperator = false;
if (this.ResolveOperator(binaryOperatorExpression, orr))
{
return;
}
if (binaryOperatorExpression.Operator == BinaryOperatorType.Equality || binaryOperatorExpression.Operator == BinaryOperatorType.InEquality)
{
if (leftIsNull || rightIsNull)
{
this.WritePart(binaryOperatorExpression.Left, toStringForLeft, leftResolverResult);
if (binaryOperatorExpression.Operator == BinaryOperatorType.Equality)
{
this.Write(strictNullChecks ? " === " : " == ");
}
else
{
this.Write(strictNullChecks ? " !== " : " != ");
}
this.WritePart(binaryOperatorExpression.Right, toStringForRight, rightResolverResult);
return;
}
}
if (binaryOperatorExpression.Operator == BinaryOperatorType.Divide &&
!(this.Emitter.IsJavaScriptOverflowMode && !ConversionBlock.InsideOverflowContext(this.Emitter, binaryOperatorExpression)) &&
(
(Helpers.IsIntegerType(leftResolverResult.Type, this.Emitter.Resolver) &&
Helpers.IsIntegerType(rightResolverResult.Type, this.Emitter.Resolver)) ||
(Helpers.IsIntegerType(this.Emitter.Resolver.Resolver.GetExpectedType(binaryOperatorExpression.Left), this.Emitter.Resolver) &&
Helpers.IsIntegerType(this.Emitter.Resolver.Resolver.GetExpectedType(binaryOperatorExpression.Right), this.Emitter.Resolver))
))
{
this.Write(JS.Types.BRIDGE_INT + "." + JS.Funcs.Math.DIV + "(");
this.WritePart(binaryOperatorExpression.Left, toStringForLeft, leftResolverResult);
this.Write(", ");
this.WritePart(binaryOperatorExpression.Right, toStringForRight, rightResolverResult);
this.Write(")");
return;
}
if (binaryOperatorExpression.Operator == BinaryOperatorType.Add ||
binaryOperatorExpression.Operator == BinaryOperatorType.Subtract)
{
var add = binaryOperatorExpression.Operator == BinaryOperatorType.Add;
if (this.Emitter.Validator.IsDelegateOrLambda(leftResolverResult) && this.Emitter.Validator.IsDelegateOrLambda(rightResolverResult))
{
delegateOperator = true;
this.Write(add ? JS.Funcs.BRIDGE_COMBINE : JS.Funcs.BRIDGE_REMOVE);
this.WriteOpenParentheses();
}
}
if (isStringConcat)
{
this.Write(JS.Types.System.String.CONCAT);
this.WriteOpenParentheses();
}
bool nullable = orr != null && orr.IsLiftedOperator;
bool isCoalescing = (this.Emitter.AssemblyInfo.StrictNullChecks ||
NullableType.IsNullable(leftResolverResult.Type) ||
leftResolverResult.Type.IsKnownType(KnownTypeCode.String) ||
leftResolverResult.Type.IsKnownType(KnownTypeCode.Object)
) && binaryOperatorExpression.Operator == BinaryOperatorType.NullCoalescing;
string root = JS.Types.SYSTEM_NULLABLE + ".";
bool special = nullable;
bool rootSpecial = nullable;
bool isBool = NullableType.IsNullable(resolveOperator.Type) ? NullableType.GetUnderlyingType(resolveOperator.Type).IsKnownType(KnownTypeCode.Boolean) : resolveOperator.Type.IsKnownType(KnownTypeCode.Boolean);
bool toBool = isBool && !rootSpecial && !delegateOperator && (binaryOperatorExpression.Operator == BinaryOperatorType.BitwiseAnd || binaryOperatorExpression.Operator == BinaryOperatorType.BitwiseOr);
bool isRefEquals = !isCoalescing && !strictNullChecks &&
(binaryOperatorExpression.Operator == BinaryOperatorType.InEquality || binaryOperatorExpression.Operator == BinaryOperatorType.Equality) &&
leftExpected.IsReferenceType.HasValue && leftExpected.IsReferenceType.Value &&
rightExpected.IsReferenceType.HasValue && rightExpected.IsReferenceType.Value;
if (rootSpecial)
{
this.Write(root);
}
else if (!isRefEquals)
{
if (isCoalescing)
{
this.Write("(");
variable = this.GetTempVarName();
this.Write(variable);
this.Write(" = ");
}
else if (charToString == 0)
{
this.Write(JS.Funcs.STRING_FROMCHARCODE + "(");
}
if (toBool)
{
this.Write("!!(");
}
this.WritePart(binaryOperatorExpression.Left, toStringForLeft, leftResolverResult);
if (isCoalescing)
{
this.Write(", ");
this.Write(variable);
this.Write(strictNullChecks ? " !== null" : " != null");
this.Write(" ? ");
this.Write(variable);
}
else if (charToString == 0)
{
this.Write(")");
}
}
if (isRefEquals)
{
if (binaryOperatorExpression.Operator == BinaryOperatorType.InEquality)
{
this.Write("!");
}
this.Write(JS.Funcs.BRIDGE_REFERENCEEQUALS);
special = true;
}
if (!delegateOperator && !isStringConcat)
{
if (!special)
{
this.WriteSpace();
}
switch (binaryOperatorExpression.Operator)
{
case BinaryOperatorType.Add:
this.Write(rootSpecial ? JS.Funcs.Math.ADD : "+");
break;
case BinaryOperatorType.BitwiseAnd:
if (isBool)
{
this.Write(rootSpecial ? JS.Funcs.Math.AND : "&");
}
else
{
this.Write(rootSpecial ? JS.Funcs.Math.BAND : "&");
}
break;
case BinaryOperatorType.BitwiseOr:
if (isBool)
{
this.Write(rootSpecial ? JS.Funcs.Math.OR : "|");
}
else
{
this.Write(rootSpecial ? JS.Funcs.Math.BOR : "|");
}
break;
case BinaryOperatorType.ConditionalAnd:
this.Write(rootSpecial ? JS.Funcs.Math.AND : "&&");
break;
case BinaryOperatorType.NullCoalescing:
this.Write(isCoalescing ? ":" : "||");
break;
case BinaryOperatorType.ConditionalOr:
this.Write(rootSpecial ? JS.Funcs.Math.OR : "||");
break;
case BinaryOperatorType.Divide:
this.Write(rootSpecial ? JS.Funcs.Math.DIV : "/");
break;
case BinaryOperatorType.Equality:
if (!isRefEquals)
{
this.Write(rootSpecial ? "eq" : "===");
}
break;
case BinaryOperatorType.ExclusiveOr:
this.Write(rootSpecial ? JS.Funcs.Math.XOR : "^");
break;
case BinaryOperatorType.GreaterThan:
this.Write(rootSpecial ? JS.Funcs.Math.GT : ">");
break;
case BinaryOperatorType.GreaterThanOrEqual:
this.Write(rootSpecial ? JS.Funcs.Math.GTE : ">=");
break;
case BinaryOperatorType.InEquality:
if (!isRefEquals)
{
this.Write(rootSpecial ? "neq" : "!==");
}
break;
case BinaryOperatorType.LessThan:
this.Write(rootSpecial ? JS.Funcs.Math.LT : "<");
break;
case BinaryOperatorType.LessThanOrEqual:
this.Write(rootSpecial ? JS.Funcs.Math.LTE : "<=");
break;
case BinaryOperatorType.Modulus:
this.Write(rootSpecial ? JS.Funcs.Math.MOD : "%");
break;
case BinaryOperatorType.Multiply:
this.Write(rootSpecial ? JS.Funcs.Math.MUL : "*");
break;
case BinaryOperatorType.ShiftLeft:
this.Write(rootSpecial ? JS.Funcs.Math.SL : "<<");
break;
case BinaryOperatorType.ShiftRight:
if (isUint)
{
this.Write(rootSpecial ? JS.Funcs.Math.SRR : ">>>");
}
else
{
this.Write(rootSpecial ? JS.Funcs.Math.SR : ">>");
}
break;
case BinaryOperatorType.Subtract:
this.Write(rootSpecial ? JS.Funcs.Math.SUB : "-");
break;
default:
throw new EmitterException(binaryOperatorExpression, "Unsupported binary operator: " + binaryOperatorExpression.Operator.ToString());
}
}
else
{
this.WriteComma();
}
if (special)
{
this.WriteOpenParentheses();
if (charToString == 0)
{
this.Write(JS.Funcs.STRING_FROMCHARCODE + "(");
}
this.WritePart(binaryOperatorExpression.Left, toStringForLeft, leftResolverResult);
if (charToString == 0)
{
this.Write(")");
}
this.WriteComma();
}
else if (!delegateOperator && !isStringConcat)
{
this.WriteSpace();
}
if (charToString == 1)
{
this.Write(JS.Funcs.STRING_FROMCHARCODE + "(");
}
this.WritePart(binaryOperatorExpression.Right, toStringForRight, rightResolverResult);
if (toBool)
{
this.WriteCloseParentheses();
}
if (charToString == 1 || isCoalescing)
{
this.WriteCloseParentheses();
}
if (delegateOperator || special || isStringConcat)
{
this.WriteCloseParentheses();
}
}
public static string ToJsName(IType type, IEmitter emitter, bool asDefinition = false, bool excludens = false, bool isAlias = false)
{
var itypeDef = type.GetDefinition();
if (itypeDef != null)
{
string globalTarget = BridgeTypes.GetGlobalTarget(itypeDef, null);
if (globalTarget != null)
{
return(globalTarget);
}
}
if (itypeDef != null && itypeDef.Attributes.Any(a => a.AttributeType.FullName == "Bridge.NonScriptableAttribute"))
{
throw new EmitterException(emitter.Translator.EmitNode, "Type " + type.FullName + " is marked as not usable from script");
}
if (type.Kind == TypeKind.Array)
{
return(JS.Types.ARRAY);
}
if (type.Kind == TypeKind.Delegate)
{
return(JS.Types.FUNCTION);
}
if (type.Kind == TypeKind.Dynamic)
{
return(JS.Types.OBJECT);
}
if (NullableType.IsNullable(type))
{
return(BridgeTypes.ToJsName(NullableType.GetUnderlyingType(type), emitter));
}
if (type.Kind == TypeKind.Anonymous)
{
var at = type as AnonymousType;
if (at != null && emitter.AnonymousTypes.ContainsKey(at))
{
return(emitter.AnonymousTypes[at].Name);
}
else
{
return("Object");
}
}
BridgeType bridgeType = emitter.BridgeTypes.Get(type, true);
var name = excludens ? "" : type.Namespace;
var hasTypeDef = bridgeType != null && bridgeType.TypeDefinition != null;
if (hasTypeDef)
{
var typeDef = bridgeType.TypeDefinition;
if (typeDef.IsNested && !excludens)
{
name = (string.IsNullOrEmpty(name) ? "" : (name + ".")) + BridgeTypes.GetParentNames(typeDef);
}
name = (string.IsNullOrEmpty(name) ? "" : (name + ".")) + BridgeTypes.ConvertName(typeDef.Name);
}
else
{
if (type.DeclaringType != null && !excludens)
{
name = (string.IsNullOrEmpty(name) ? "" : (name + ".")) + BridgeTypes.GetParentNames(type);
if (type.DeclaringType.TypeArguments.Count > 0)
{
name += Helpers.PrefixDollar(type.TypeArguments.Count);
}
}
name = (string.IsNullOrEmpty(name) ? "" : (name + ".")) + BridgeTypes.ConvertName(type.Name);
}
bool isCustomName = false;
if (bridgeType != null)
{
name = BridgeTypes.AddModule(name, bridgeType, out isCustomName);
}
if (!hasTypeDef && !isCustomName && type.TypeArguments.Count > 0)
{
name += Helpers.PrefixDollar(type.TypeArguments.Count);
}
if (isAlias)
{
name = OverloadsCollection.NormalizeInterfaceName(name);
}
if (type.TypeArguments.Count > 0 && !Helpers.IsIgnoreGeneric(type, emitter))
{
if (isAlias)
{
StringBuilder sb = new StringBuilder(name);
bool needComma = false;
sb.Append(JS.Vars.D);
bool isStr = false;
foreach (var typeArg in type.TypeArguments)
{
if (sb.ToString().EndsWith(")"))
{
sb.Append(" + \"");
}
if (needComma && !sb.ToString().EndsWith(JS.Vars.D.ToString()))
{
sb.Append(JS.Vars.D);
}
needComma = true;
bool needGet = typeArg.Kind == TypeKind.TypeParameter && !asDefinition;
if (needGet)
{
if (!isStr)
{
sb.Insert(0, "\"");
isStr = true;
}
sb.Append("\" + Bridge.getTypeAlias(");
}
var typeArgName = BridgeTypes.ToJsName(typeArg, emitter, false, false, true);
if (!needGet && typeArgName.StartsWith("\""))
{
sb.Append(typeArgName.Substring(1));
if (!isStr)
{
isStr = true;
sb.Insert(0, "\"");
}
}
else
{
sb.Append(typeArgName);
}
if (needGet)
{
sb.Append(")");
}
}
if (isStr && !sb.ToString().EndsWith(")"))
{
sb.Append("\"");
}
name = sb.ToString();
}
else if (!asDefinition)
{
StringBuilder sb = new StringBuilder(name);
bool needComma = false;
sb.Append("(");
foreach (var typeArg in type.TypeArguments)
{
if (needComma)
{
sb.Append(",");
}
needComma = true;
sb.Append(BridgeTypes.ToJsName(typeArg, emitter));
}
sb.Append(")");
name = sb.ToString();
}
}
return(name);
}
internal static bool IsBinaryCompatibleWithType(BinaryNumericInstruction binary, IType type, DecompilerSettings?settings)
{
if (binary.IsLifted)
{
if (!NullableType.IsNullable(type))
{
return(false);
}
type = NullableType.GetUnderlyingType(type);
}
if (type.Kind == TypeKind.Unknown)
{
return(false); // avoid introducing a potentially-incorrect compound assignment
}
else if (type.Kind == TypeKind.Enum)
{
switch (binary.Operator)
{
case BinaryNumericOperator.Add:
case BinaryNumericOperator.Sub:
case BinaryNumericOperator.BitAnd:
case BinaryNumericOperator.BitOr:
case BinaryNumericOperator.BitXor:
break; // OK
default:
return(false); // operator not supported on enum types
}
}
else if (type.Kind == TypeKind.Pointer)
{
switch (binary.Operator)
{
case BinaryNumericOperator.Add:
case BinaryNumericOperator.Sub:
// ensure that the byte offset is a multiple of the pointer size
return(PointerArithmeticOffset.Detect(
binary.Right,
((PointerType)type).ElementType,
checkForOverflow: binary.CheckForOverflow
) != null);
default:
return(false); // operator not supported on pointer types
}
}
else if (type.IsKnownType(KnownTypeCode.IntPtr) || type.IsKnownType(KnownTypeCode.UIntPtr))
{
// "target.intptr *= 2;" is compiler error, but
// "target.intptr *= (nint)2;" works
if (settings != null && !settings.NativeIntegers)
{
// But if native integers are not available, we cannot use compound assignment.
return(false);
}
// The trick with casting the RHS to n(u)int doesn't work for shifts:
switch (binary.Operator)
{
case BinaryNumericOperator.ShiftLeft:
case BinaryNumericOperator.ShiftRight:
return(false);
}
}
if (binary.Sign != Sign.None)
{
if (type.IsCSharpSmallIntegerType())
{
// C# will use numeric promotion to int, binary op must be signed
if (binary.Sign != Sign.Signed)
{
return(false);
}
}
else
{
// C# will use sign from type
if (type.GetSign() != binary.Sign)
{
return(false);
}
}
}
// Can't transform if the RHS value would be need to be truncated for the LHS type.
if (Transforms.TransformAssignment.IsImplicitTruncation(binary.Right, type, null, binary.IsLifted))
{
return(false);
}
return(true);
}
protected void VisitBinaryOperatorExpression()
{
BinaryOperatorExpression binaryOperatorExpression = this.BinaryOperatorExpression;
var resolveOperator = this.Emitter.Resolver.ResolveNode(binaryOperatorExpression, this.Emitter);
var expectedType = this.Emitter.Resolver.Resolver.GetExpectedType(binaryOperatorExpression);
bool isDecimalExpected = Helpers.IsDecimalType(expectedType, this.Emitter.Resolver);
bool isDecimal = Helpers.IsDecimalType(resolveOperator.Type, this.Emitter.Resolver);
OperatorResolveResult orr = resolveOperator as OperatorResolveResult;
var leftResolverResult = this.Emitter.Resolver.ResolveNode(binaryOperatorExpression.Left, this.Emitter);
var rightResolverResult = this.Emitter.Resolver.ResolveNode(binaryOperatorExpression.Right, this.Emitter);
var charToString = -1;
string variable = null;
bool leftIsNull = this.BinaryOperatorExpression.Left is NullReferenceExpression;
bool rightIsNull = this.BinaryOperatorExpression.Right is NullReferenceExpression;
bool isStringConcat = false;
/*
* if ((leftIsNull || rightIsNull) && (binaryOperatorExpression.Operator == BinaryOperatorType.Equality || binaryOperatorExpression.Operator == BinaryOperatorType.InEquality))
* {
* if (binaryOperatorExpression.Operator == BinaryOperatorType.Equality)
* {
* this.Write("!");
* }
*
* this.Write(LuaHelper.Root,".hasValue");
*
* this.WriteOpenParentheses();
*
* if (leftIsNull)
* {
* binaryOperatorExpression.Right.AcceptVisitor(this.Emitter);
* }
* else
* {
* binaryOperatorExpression.Left.AcceptVisitor(this.Emitter);
* }
*
* this.WriteCloseParentheses();
* return;
* }*/
if (orr != null && orr.Type.IsKnownType(KnownTypeCode.String))
{
isStringConcat = true;
for (int i = 0; i < orr.Operands.Count; i++)
{
var crr = orr.Operands[i] as ConversionResolveResult;
if (crr != null && crr.Input.Type.IsKnownType(KnownTypeCode.Char))
{
charToString = i;
}
}
}
if (resolveOperator is ConstantResolveResult)
{
this.WriteScript(((ConstantResolveResult)resolveOperator).ConstantValue);
return;
}
if (!((expectedType.IsKnownType(KnownTypeCode.String) || resolveOperator.Type.IsKnownType(KnownTypeCode.String)) && binaryOperatorExpression.Operator == BinaryOperatorType.Add) && (Helpers.IsDecimalType(leftResolverResult.Type, this.Emitter.Resolver) || Helpers.IsDecimalType(rightResolverResult.Type, this.Emitter.Resolver)))
{
isDecimal = true;
isDecimalExpected = true;
}
if (isDecimal && isDecimalExpected && binaryOperatorExpression.Operator != BinaryOperatorType.NullCoalescing)
{
this.HandleDecimal(resolveOperator);
return;
}
var delegateOperator = false;
if (this.ResolveOperator(binaryOperatorExpression, orr))
{
return;
}
/*
* if (binaryOperatorExpression.Operator == BinaryOperatorType.Divide &&
* (
* (Helpers.IsIntegerType(leftResolverResult.Type, this.Emitter.Resolver) &&
* Helpers.IsIntegerType(rightResolverResult.Type, this.Emitter.Resolver)) ||
*
* (Helpers.IsIntegerType(this.Emitter.Resolver.Resolver.GetExpectedType(binaryOperatorExpression.Left), this.Emitter.Resolver) &&
* Helpers.IsIntegerType(this.Emitter.Resolver.Resolver.GetExpectedType(binaryOperatorExpression.Right), this.Emitter.Resolver))
* ))
* {
* this.Write("{0}.Number.div(".F(LuaHelper.Root));
* binaryOperatorExpression.Left.AcceptVisitor(this.Emitter);
* this.Write(", ");
* binaryOperatorExpression.Right.AcceptVisitor(this.Emitter);
* this.Write(")");
* return;
* }
*/
if (binaryOperatorExpression.Operator == BinaryOperatorType.Add ||
binaryOperatorExpression.Operator == BinaryOperatorType.Subtract)
{
var add = binaryOperatorExpression.Operator == BinaryOperatorType.Add;
if (this.Emitter.Validator.IsDelegateOrLambda(leftResolverResult) || this.Emitter.Validator.IsDelegateOrLambda(rightResolverResult))
{
delegateOperator = true;
this.Write(Bridge.Translator.Emitter.ROOT + "." + (add ? Bridge.Translator.Emitter.DELEGATE_COMBINE : Bridge.Translator.Emitter.DELEGATE_REMOVE));
this.WriteOpenParentheses();
}
}
bool isBool = NullableType.IsNullable(resolveOperator.Type) ? NullableType.GetUnderlyingType(resolveOperator.Type).IsKnownType(KnownTypeCode.Boolean) : resolveOperator.Type.IsKnownType(KnownTypeCode.Boolean);
bool isBitwise = (binaryOperatorExpression.Operator == BinaryOperatorType.BitwiseAnd && !isBool) ||
(binaryOperatorExpression.Operator == BinaryOperatorType.BitwiseOr && !isBool) ||
binaryOperatorExpression.Operator == BinaryOperatorType.ExclusiveOr ||
binaryOperatorExpression.Operator == BinaryOperatorType.ShiftLeft ||
binaryOperatorExpression.Operator == BinaryOperatorType.ShiftRight;
bool isIntDiv = binaryOperatorExpression.Operator == BinaryOperatorType.Divide &&
(
(Helpers.IsIntegerType(leftResolverResult.Type, this.Emitter.Resolver) &&
Helpers.IsIntegerType(rightResolverResult.Type, this.Emitter.Resolver)) ||
(Helpers.IsIntegerType(this.Emitter.Resolver.Resolver.GetExpectedType(binaryOperatorExpression.Left), this.Emitter.Resolver) &&
Helpers.IsIntegerType(this.Emitter.Resolver.Resolver.GetExpectedType(binaryOperatorExpression.Right), this.Emitter.Resolver))
);
bool nullable = orr != null && orr.IsLiftedOperator;
bool isCoalescing = binaryOperatorExpression.Operator == BinaryOperatorType.NullCoalescing;
string root = Bridge.Translator.Emitter.ROOT + ".Nullable.";
bool special = nullable;
bool rootSpecial = nullable;
if (!nullable)
{
if (isBitwise || isIntDiv)
{
root = Bridge.Translator.Emitter.ROOT + ".";
special = true;
rootSpecial = true;
}
}
if (rootSpecial)
{
this.Write(root);
}
else if (isStringConcat)
{
VisitStringConcat(orr, true, charToString == 0);
}
else
{
if (isCoalescing)
{
this.Write("(");
variable = this.GetTempVarName();
this.Write(variable);
this.Write(" = ");
}
else if (charToString == 0)
{
this.Write("string.char(");
}
binaryOperatorExpression.Left.AcceptVisitor(this.Emitter);
if (isCoalescing)
{
this.Write(", {0}.hasValue(".F(LuaHelper.Root));
this.Write(variable);
this.Write(") ? ");
this.Write(variable);
}
else if (charToString == 0)
{
this.Write(")");
}
}
if (!delegateOperator)
{
if (!special)
{
this.WriteSpace();
}
bool isUint = resolveOperator.Type.IsKnownType(KnownTypeCode.UInt16) ||
resolveOperator.Type.IsKnownType(KnownTypeCode.UInt32) ||
resolveOperator.Type.IsKnownType(KnownTypeCode.UInt64);
bool is64bit = resolveOperator.Type.IsKnownType(KnownTypeCode.UInt64) ||
resolveOperator.Type.IsKnownType(KnownTypeCode.Int64);
if (isBitwise && is64bit)
{
throw new EmitterException(this.BinaryOperatorExpression, "Bitwise operations are not allowed on 64-bit types");
}
switch (binaryOperatorExpression.Operator)
{
case BinaryOperatorType.Add:
if (isStringConcat)
{
this.Write(rootSpecial ? "and" : "..");
}
else
{
this.Write(rootSpecial ? "and" : "+");
}
break;
case BinaryOperatorType.BitwiseAnd:
if (isBool)
{
this.Write(rootSpecial ? "and" : "and");
}
else
{
this.Write(rootSpecial ? "band" : "&");
}
break;
case BinaryOperatorType.BitwiseOr:
if (isBool)
{
this.Write(rootSpecial ? "or" : "or");
}
else
{
this.Write(rootSpecial ? "bor" : "|");
}
break;
case BinaryOperatorType.ConditionalAnd:
this.Write(rootSpecial ? "and" : "and");
break;
case BinaryOperatorType.NullCoalescing:
this.Write(":");
break;
case BinaryOperatorType.ConditionalOr:
this.Write(rootSpecial ? "or" : "or");
break;
case BinaryOperatorType.Divide:
this.Write(rootSpecial ? "div" : "/");
break;
case BinaryOperatorType.Equality:
this.Write(rootSpecial ? "eq" : "==");
break;
case BinaryOperatorType.ExclusiveOr:
this.Write(rootSpecial ? "xor" : "^");
break;
case BinaryOperatorType.GreaterThan:
this.Write(rootSpecial ? ">" : ">");
break;
case BinaryOperatorType.GreaterThanOrEqual:
this.Write(rootSpecial ? "gte" : ">=");
break;
case BinaryOperatorType.InEquality:
this.Write(rootSpecial ? "neq" : "~=");
break;
case BinaryOperatorType.LessThan:
this.Write(rootSpecial ? "lt" : "<");
break;
case BinaryOperatorType.LessThanOrEqual:
this.Write(rootSpecial ? "lte" : "<=");
break;
case BinaryOperatorType.Modulus:
this.Write(rootSpecial ? "mod" : "%");
break;
case BinaryOperatorType.Multiply:
this.Write(rootSpecial ? "mul" : "*");
break;
case BinaryOperatorType.ShiftLeft:
this.Write(rootSpecial ? "sl" : "<<");
break;
case BinaryOperatorType.ShiftRight:
if (isUint)
{
this.Write(rootSpecial ? "srr" : ">>>");
}
else
{
this.Write(rootSpecial ? "sr" : ">>");
}
break;
case BinaryOperatorType.Subtract:
this.Write(rootSpecial ? "sub" : "-");
break;
default:
throw new EmitterException(binaryOperatorExpression, "Unsupported binary operator: " + binaryOperatorExpression.Operator.ToString());
}
}
else
{
this.WriteComma();
}
if (isStringConcat)
{
this.WriteSpace();
VisitStringConcat(orr, false, charToString == 1);
}
else
{
if (special)
{
this.WriteOpenParentheses();
if (charToString == 0)
{
this.Write("string.char(");
}
binaryOperatorExpression.Left.AcceptVisitor(this.Emitter);
if (charToString == 0)
{
this.Write(")");
}
this.WriteComma();
}
else
{
this.WriteSpace();
}
if (charToString == 1)
{
this.Write("string.char(");
}
binaryOperatorExpression.Right.AcceptVisitor(this.Emitter);
if (charToString == 1 || isCoalescing)
{
this.Write(")");
}
if (delegateOperator || special)
{
this.WriteCloseParentheses();
}
}
}
private void HandleDecimal(ResolveResult resolveOperator)
{
if (this.AssignmentExpression.Operator == AssignmentOperatorType.Assign)
{
new ExpressionListBlock(this.Emitter,
new Expression[] { this.AssignmentExpression.Right }, null).Emit();
return;
}
var orr = resolveOperator as OperatorResolveResult;
var method = orr != null ? orr.UserDefinedOperatorMethod : null;
var assigmentType = Helpers.TypeOfAssignment(this.AssignmentExpression.Operator);
if (orr != null && method == null)
{
var name = Helpers.GetBinaryOperatorMethodName(assigmentType);
var type = NullableType.IsNullable(orr.Type) ? NullableType.GetUnderlyingType(orr.Type) : orr.Type;
method = type.GetMethods(m => m.Name == name, GetMemberOptions.IgnoreInheritedMembers).FirstOrDefault();
}
if (method != null)
{
var inline = this.Emitter.GetInline(method);
if (orr.IsLiftedOperator)
{
this.Write(Bridge.Translator.Emitter.ROOT + ".Nullable.");
string action = "lift2";
string op_name = null;
switch (assigmentType)
{
case BinaryOperatorType.GreaterThan:
op_name = "gt";
break;
case BinaryOperatorType.GreaterThanOrEqual:
op_name = "gte";
break;
case BinaryOperatorType.Equality:
op_name = "equals";
break;
case BinaryOperatorType.InEquality:
op_name = "ne";
break;
case BinaryOperatorType.LessThan:
op_name = "lt";
break;
case BinaryOperatorType.LessThanOrEqual:
op_name = "lte";
break;
case BinaryOperatorType.Add:
op_name = "add";
break;
case BinaryOperatorType.Subtract:
op_name = "sub";
break;
case BinaryOperatorType.Multiply:
op_name = "mul";
break;
case BinaryOperatorType.Divide:
op_name = "div";
break;
case BinaryOperatorType.Modulus:
op_name = "mod";
break;
default:
throw new ArgumentOutOfRangeException();
}
this.Write(action);
this.WriteOpenParentheses();
this.WriteScript(op_name);
this.WriteComma();
new ExpressionListBlock(this.Emitter,
new Expression[] { this.AssignmentExpression.Left, this.AssignmentExpression.Right }, null).Emit();
this.WriteCloseParentheses();
}
else if (!string.IsNullOrWhiteSpace(inline))
{
new InlineArgumentsBlock(this.Emitter,
new ArgumentsInfo(this.Emitter, this.AssignmentExpression, orr, method), inline).Emit();
}
else if (!this.Emitter.Validator.IsIgnoreType(method.DeclaringTypeDefinition))
{
this.Write(BridgeTypes.ToJsName(method.DeclaringType, this.Emitter));
this.WriteDot();
this.Write(OverloadsCollection.Create(this.Emitter, method).GetOverloadName());
this.WriteOpenParentheses();
new ExpressionListBlock(this.Emitter,
new Expression[] { this.AssignmentExpression.Left, this.AssignmentExpression.Right }, null).Emit();
this.WriteCloseParentheses();
}
}
}
public static string ToJsName(IType type, IEmitter emitter, bool asDefinition = false, bool excludens = false, ToNameTypeEnum kind = ToNameTypeEnum.None)
{
if (NullableType.IsNullable(type))
{
return(BridgeTypes.ToJsName(NullableType.GetUnderlyingType(type), emitter));
}
if (type.Kind == TypeKind.Delegate)
{
return("System.Delegate");
}
BridgeType bridgeType = emitter.BridgeTypes.Get(type, true);
var name = excludens ? "" : XmlMetaMaker.GetNamespace(bridgeType != null ? bridgeType.Type.Namespace : type.Namespace);
var hasTypeDef = bridgeType != null && bridgeType.TypeDefinition != null;
if (hasTypeDef)
{
var typeDef = bridgeType.TypeDefinition;
if (typeDef.IsNested && !excludens)
{
name = (string.IsNullOrEmpty(name) ? "" : (name + ".")) + BridgeTypes.GetParentNames(typeDef);
}
name = (string.IsNullOrEmpty(name) ? "" : (name + ".")) + BridgeTypes.ConvertName(typeDef.Name);
}
else
{
if (type.DeclaringType != null && !excludens)
{
name = (string.IsNullOrEmpty(name) ? "" : (name + ".")) + BridgeTypes.GetParentNames(type);
if (type.DeclaringType.TypeArguments.Count > 0)
{
name += "_" + type.TypeArguments.Count;
}
}
name = (string.IsNullOrEmpty(name) ? "" : (name + ".")) + BridgeTypes.ConvertName(type.Name);
}
bool isCustomName = false;
if (bridgeType != null)
{
name = BridgeTypes.AddModule(name, bridgeType, out isCustomName);
}
if (kind == ToNameTypeEnum.None)
{
int pos = name.LastIndexOf('.');
if (pos != -1)
{
string prefix = name.Substring(0, pos);
if (prefix != "System")
{
TransformCtx.CurUsingNamespaces.Add(prefix);
string newPrefix = prefix.Replace(".", "");
if (newPrefix == prefix)
{
newPrefix = '_' + newPrefix;
}
name = newPrefix + name.Substring(pos);
}
}
}
if (!hasTypeDef && !isCustomName && type.TypeArguments.Count > 0)
{
name += "_" + type.TypeArguments.Count;
}
if (!asDefinition && type.TypeArguments.Count > 0 && !Helpers.IsIgnoreGeneric(type, emitter))
{
StringBuilder sb = new StringBuilder(name);
bool needComma = false;
sb.Append("(");
foreach (var typeArg in type.TypeArguments)
{
if (needComma)
{
sb.Append(", ");
}
needComma = true;
sb.Append(BridgeTypes.ToNameIgnoreEnum(typeArg, emitter, kind));
}
sb.Append(")");
name = sb.ToString();
}
else if (type.Kind == TypeKind.Array)
{
name += "(" + BridgeTypes.ToNameIgnoreEnum(((ICSharpCode.NRefactory.TypeSystem.ArrayType)type).ElementType, emitter) + ")";
}
return(name);
}
public static void CheckInteger(ConversionBlock block, Expression expression, IType type)
{
NarrowingNumericOrEnumerationConversion(block, expression, NullableType.IsNullable(type) ? NullableType.GetUnderlyingType(type) : type, false, true, NullableType.IsNullable(type));
}
public static void FloatToInt(ConversionBlock block, Expression expression, IType sourceType, IType targetType, bool isChecked)
{
NarrowingNumericOrEnumerationConversion(block, expression, NullableType.IsNullable(targetType) ? NullableType.GetUnderlyingType(targetType) : targetType, true, isChecked, NullableType.IsNullable(sourceType));
}
private static void NarrowingNumericOrEnumerationConversion(ConversionBlock block, Expression expression, IType targetType, bool fromFloatingPoint, bool isChecked, bool isNullable, bool isExplicit = true)
{
if (block.Emitter.IsJavaScriptOverflowMode && !InsideOverflowContext(block.Emitter, expression))
{
return;
}
var binaryOperatorExpression = expression as BinaryOperatorExpression;
if (binaryOperatorExpression != null)
{
var rr = block.Emitter.Resolver.ResolveNode(expression, block.Emitter);
var leftResolverResult = block.Emitter.Resolver.ResolveNode(binaryOperatorExpression.Left, block.Emitter);
var rightResolverResult = block.Emitter.Resolver.ResolveNode(binaryOperatorExpression.Right, block.Emitter);
if (rr != null)
{
if (binaryOperatorExpression.Operator == BinaryOperatorType.Multiply &&
!(block.Emitter.IsJavaScriptOverflowMode ||
ConversionBlock.InsideOverflowContext(block.Emitter, binaryOperatorExpression)) &&
(
(Helpers.IsInteger32Type(leftResolverResult.Type, block.Emitter.Resolver) &&
Helpers.IsInteger32Type(rightResolverResult.Type, block.Emitter.Resolver) &&
Helpers.IsInteger32Type(rr.Type, block.Emitter.Resolver)) ||
(Helpers.IsInteger32Type(block.Emitter.Resolver.Resolver.GetExpectedType(binaryOperatorExpression.Left), block.Emitter.Resolver) &&
Helpers.IsInteger32Type(block.Emitter.Resolver.Resolver.GetExpectedType(binaryOperatorExpression.Right), block.Emitter.Resolver) &&
Helpers.IsInteger32Type(rr.Type, block.Emitter.Resolver))
))
{
return;
}
}
}
var assignmentExpression = expression as AssignmentExpression;
if (assignmentExpression != null)
{
var leftResolverResult = block.Emitter.Resolver.ResolveNode(assignmentExpression.Left, block.Emitter);
var rightResolverResult = block.Emitter.Resolver.ResolveNode(assignmentExpression.Right, block.Emitter);
var rr = block.Emitter.Resolver.ResolveNode(assignmentExpression, block.Emitter);
if (assignmentExpression.Operator == AssignmentOperatorType.Multiply &&
!(block.Emitter.IsJavaScriptOverflowMode ||
ConversionBlock.InsideOverflowContext(block.Emitter, assignmentExpression)) &&
(
(Helpers.IsInteger32Type(leftResolverResult.Type, block.Emitter.Resolver) &&
Helpers.IsInteger32Type(rightResolverResult.Type, block.Emitter.Resolver) &&
Helpers.IsInteger32Type(rr.Type, block.Emitter.Resolver)) ||
(Helpers.IsInteger32Type(
block.Emitter.Resolver.Resolver.GetExpectedType(assignmentExpression.Left),
block.Emitter.Resolver) &&
Helpers.IsInteger32Type(
block.Emitter.Resolver.Resolver.GetExpectedType(assignmentExpression.Right),
block.Emitter.Resolver) &&
Helpers.IsInteger32Type(rr.Type, block.Emitter.Resolver))
))
{
return;
}
}
if (isChecked)
{
block.Write(JS.Types.BRIDGE_INT + ".check(");
if (fromFloatingPoint)
{
block.Write(JS.Types.BRIDGE_INT + ".trunc");
block.WriteOpenParentheses();
}
//expression.AcceptVisitor(block.Emitter);
if (fromFloatingPoint)
{
block.AfterOutput += ")";
}
block.AfterOutput += ", ";
block.AfterOutput += BridgeTypes.ToJsName(targetType, block.Emitter);
block.AfterOutput += ")";
}
else
{
if (isNullable || fromFloatingPoint)
{
targetType = NullableType.IsNullable(targetType) ? NullableType.GetUnderlyingType(targetType) : targetType;
string action = null;
if (targetType.IsKnownType(KnownTypeCode.Char))
{
action = "clipu16";
}
else if (targetType.IsKnownType(KnownTypeCode.SByte))
{
action = "clip8";
}
else if (targetType.IsKnownType(KnownTypeCode.Byte))
{
action = "clipu8";
}
else if (targetType.IsKnownType(KnownTypeCode.Int16))
{
action = "clip16";
}
else if (targetType.IsKnownType(KnownTypeCode.UInt16))
{
action = "clipu16";
}
else if (targetType.IsKnownType(KnownTypeCode.Int32))
{
action = "clip32";
}
else if (targetType.IsKnownType(KnownTypeCode.UInt32))
{
action = "clipu32";
}
else if (targetType.IsKnownType(KnownTypeCode.Int64))
{
action = "clip64";
}
else if (targetType.IsKnownType(KnownTypeCode.UInt64))
{
action = "clipu64";
}
else
{
throw new ArgumentException("Can not narrow to " + targetType, "targetType");
}
block.Write(JS.Types.BRIDGE_INT + ".");
block.Write(action);
block.Write("(");
block.AfterOutput += ")";
}
else
{
var skipOuterWrap = (expression.Parent is VariableInitializer) ||
(expression.Parent is AssignmentExpression) ||
targetType.IsKnownType(KnownTypeCode.Int64) ||
targetType.IsKnownType(KnownTypeCode.UInt64) ||
targetType.IsKnownType(KnownTypeCode.Int16) ||
targetType.IsKnownType(KnownTypeCode.SByte);
bool skipInnerWrap = false;
var rr = block.Emitter.Resolver.ResolveNode(expression is CastExpression ? ((CastExpression)expression).Expression : expression, block.Emitter);
var memberTargetrr = rr as MemberResolveResult;
bool isField = memberTargetrr != null && memberTargetrr.Member is IField &&
(memberTargetrr.TargetResult is ThisResolveResult ||
memberTargetrr.TargetResult is LocalResolveResult);
if (rr is ThisResolveResult || rr is LocalResolveResult || rr is ConstantResolveResult || isField)
{
skipInnerWrap = true;
}
if (!skipOuterWrap)
{
block.WriteOpenParentheses();
}
if (targetType.IsKnownType(KnownTypeCode.Char))
{
if (!skipInnerWrap)
{
block.WriteOpenParentheses();
block.AfterOutput += ")";
}
block.AfterOutput += " & 65535";
}
else if (targetType.IsKnownType(KnownTypeCode.SByte))
{
block.Write(JS.Types.BRIDGE_INT + ".sxb(");
if (!skipInnerWrap)
{
block.WriteOpenParentheses();
block.AfterOutput += ")";
}
block.AfterOutput += " & 255)";
}
else if (targetType.IsKnownType(KnownTypeCode.Byte))
{
if (!skipInnerWrap)
{
block.WriteOpenParentheses();
block.AfterOutput += ")";
}
block.AfterOutput += " & 255";
}
else if (targetType.IsKnownType(KnownTypeCode.Int16))
{
block.Write(JS.Types.BRIDGE_INT + ".sxs(");
if (!skipInnerWrap)
{
block.WriteOpenParentheses();
block.AfterOutput += ")";
}
block.AfterOutput += " & 65535)";
}
else if (targetType.IsKnownType(KnownTypeCode.UInt16))
{
if (!skipInnerWrap)
{
block.WriteOpenParentheses();
block.AfterOutput += ")";
}
block.AfterOutput += " & 65535";
}
else if (targetType.IsKnownType(KnownTypeCode.Int32))
{
if (!skipInnerWrap)
{
block.WriteOpenParentheses();
block.AfterOutput += ")";
}
block.AfterOutput += " | 0";
}
else if (targetType.IsKnownType(KnownTypeCode.UInt32))
{
if (!skipInnerWrap)
{
block.WriteOpenParentheses();
block.AfterOutput += ")";
}
block.AfterOutput += " >>> 0";
}
else if (targetType.IsKnownType(KnownTypeCode.Int64))
{
block.Write(JS.Types.BRIDGE_INT + ".clip64(");
block.AfterOutput += ")";
}
else if (targetType.IsKnownType(KnownTypeCode.UInt64))
{
block.Write(JS.Types.BRIDGE_INT + ".clipu64(");
block.AfterOutput += ")";
}
else
{
throw new ArgumentException("Can not narrow to " + targetType, "targetType");
}
if (!skipOuterWrap)
{
block.AfterOutput += ")";
}
}
}
}
private static void CheckLong(ConversionBlock block, Expression expression, IType expectedType, IType fromType, bool isChecked)
{
if (!NeedsNarrowingNumericConversion(fromType, expectedType))
{
return;
}
if (isChecked)
{
expectedType = NullableType.IsNullable(expectedType) ? NullableType.GetUnderlyingType(expectedType) : expectedType;
block.Write(JS.Types.System.Int64.CHECK);
block.WriteOpenParentheses();
block.AfterOutput += ", ";
block.AfterOutput += BridgeTypes.ToJsName(expectedType, block.Emitter);
block.AfterOutput += ")";
}
else
{
string action = null;
expectedType = NullableType.IsNullable(expectedType) ? NullableType.GetUnderlyingType(expectedType) : expectedType;
if (block.Emitter.IsJavaScriptOverflowMode && !InsideOverflowContext(block.Emitter, expression))
{
action = "toNumber";
}
else if (expectedType.IsKnownType(KnownTypeCode.Char))
{
action = "clipu16";
}
else if (expectedType.IsKnownType(KnownTypeCode.SByte))
{
action = "clip8";
}
else if (expectedType.IsKnownType(KnownTypeCode.Byte))
{
action = "clipu8";
}
else if (expectedType.IsKnownType(KnownTypeCode.Int16))
{
action = "clip16";
}
else if (expectedType.IsKnownType(KnownTypeCode.UInt16))
{
action = "clipu16";
}
else if (expectedType.IsKnownType(KnownTypeCode.Int32))
{
action = "clip32";
}
else if (expectedType.IsKnownType(KnownTypeCode.UInt32))
{
action = "clipu32";
}
else if (expectedType.IsKnownType(KnownTypeCode.Int64))
{
action = "clip64";
}
else if (expectedType.IsKnownType(KnownTypeCode.UInt64))
{
action = "clipu64";
}
else
{
throw new ArgumentException("Can not narrow to " + expectedType, "expectedType");
}
block.Write(JS.Types.System.Int64.NAME + ".");
block.Write(action);
block.Write("(");
block.AfterOutput += ")";
}
}
bool MatchDisposeBlock(BlockContainer container, ILVariable objVar, bool usingNull)
{
var entryPoint = container.EntryPoint;
if (entryPoint.Instructions.Count < 2 || entryPoint.Instructions.Count > 3 || entryPoint.IncomingEdgeCount != 1)
{
return(false);
}
int leaveIndex = entryPoint.Instructions.Count == 2 ? 1 : 2;
int checkIndex = entryPoint.Instructions.Count == 2 ? 0 : 1;
int castIndex = entryPoint.Instructions.Count == 3 ? 0 : -1;
bool isReference = objVar.Type.IsReferenceType != false;
if (castIndex > -1)
{
if (!entryPoint.Instructions[castIndex].MatchStLoc(out var tempVar, out var isinst))
{
return(false);
}
if (!isinst.MatchIsInst(out var load, out var disposableType) || !load.MatchLdLoc(objVar) || !disposableType.IsKnownType(KnownTypeCode.IDisposable))
{
return(false);
}
if (tempVar.StoreCount != 1 || tempVar.LoadCount != 2)
{
return(false);
}
objVar = tempVar;
isReference = true;
}
if (!entryPoint.Instructions[leaveIndex].MatchLeave(container, out var returnValue) || !returnValue.MatchNop())
{
return(false);
}
CallVirt callVirt;
if (objVar.Type.IsKnownType(KnownTypeCode.NullableOfT))
{
if (!entryPoint.Instructions[checkIndex].MatchIfInstruction(out var condition, out var disposeInst))
{
return(false);
}
if (!(NullableLiftingTransform.MatchHasValueCall(condition, out var v) && v == objVar))
{
return(false);
}
if (!(disposeInst is Block disposeBlock) || disposeBlock.Instructions.Count != 1)
{
return(false);
}
if (!(disposeBlock.Instructions[0] is CallVirt cv))
{
return(false);
}
callVirt = cv;
if (callVirt.Method.FullName != "System.IDisposable.Dispose")
{
return(false);
}
if (callVirt.Method.Parameters.Count > 0)
{
return(false);
}
if (callVirt.Arguments.Count != 1)
{
return(false);
}
var firstArg = cv.Arguments.FirstOrDefault();
if (!(firstArg.MatchUnboxAny(out var innerArg1, out var unboxType) && unboxType.IsKnownType(KnownTypeCode.IDisposable)))
{
if (!firstArg.MatchAddressOf(out var innerArg2))
{
return(false);
}
return(NullableLiftingTransform.MatchGetValueOrDefault(innerArg2, objVar));
}
else
{
if (!(innerArg1.MatchBox(out firstArg, out var boxType) && boxType.IsKnownType(KnownTypeCode.NullableOfT) &&
NullableType.GetUnderlyingType(boxType).Equals(NullableType.GetUnderlyingType(objVar.Type))))
{
return(false);
}
return(firstArg.MatchLdLoc(objVar));
}
}
protected virtual void EmitCastExpression(Expression expression, AstType type, string method)
{
var castToEnum = this.Emitter.BridgeTypes.ToType(type).Kind == TypeKind.Enum;
if (method != Bridge.Translator.Emitter.IS && (Helpers.IsIgnoreCast(type, this.Emitter) || castToEnum))
{
expression.AcceptVisitor(this.Emitter);
return;
}
if (method == Bridge.Translator.Emitter.IS && castToEnum)
{
this.Write("Bridge.hasValue(");
expression.AcceptVisitor(this.Emitter);
this.Write(")");
return;
}
var expressionrr = this.Emitter.Resolver.ResolveNode(expression, this.Emitter);
var typerr = this.Emitter.Resolver.ResolveNode(type, this.Emitter);
if (expressionrr.Type.Equals(typerr.Type))
{
if (method == Bridge.Translator.Emitter.IS)
{
this.WriteScript(true);
}
else
{
expression.AcceptVisitor(this.Emitter);
}
return;
}
bool isInlineCast;
string castCode = this.GetCastCode(expression, type, out isInlineCast);
bool isNullable = NullableType.IsNullable(expressionrr.Type);
bool isResultNullable = NullableType.IsNullable(typerr.Type);
if (isInlineCast)
{
if (isNullable)
{
isNullable = !NullableType.GetUnderlyingType(expressionrr.Type).Equals(typerr.Type);
}
this.EmitInlineCast(expression, type, castCode, isNullable, isResultNullable);
return;
}
if (method == Bridge.Translator.Emitter.CAST)
{
if (Helpers.IsIntegerType(typerr.Type, this.Emitter.Resolver))
{
if (expressionrr.Type != null && Helpers.IsFloatType(expressionrr.Type, this.Emitter.Resolver))
{
this.Write("Bridge.Int.trunc(");
if (isNullable && !isResultNullable)
{
this.Write("Bridge.Nullable.getValue(");
}
expression.AcceptVisitor(this.Emitter);
if (isNullable && !isResultNullable)
{
this.WriteCloseParentheses();
}
this.Write(")");
return;
}
}
if (ConversionBlock.IsUserDefinedConversion(this, this.CastExpression.Expression))
{
expression.AcceptVisitor(this.Emitter);
return;
}
}
var simpleType = type as SimpleType;
bool hasValue = false;
if (simpleType != null && simpleType.Identifier == "dynamic")
{
if (method == Bridge.Translator.Emitter.CAST || method == Bridge.Translator.Emitter.AS)
{
expression.AcceptVisitor(this.Emitter);
return;
}
else if (method == Bridge.Translator.Emitter.IS)
{
hasValue = true;
method = "hasValue";
}
}
this.Write(Bridge.Translator.Emitter.ROOT);
this.WriteDot();
this.Write(method);
this.WriteOpenParentheses();
if (isNullable && !isResultNullable)
{
this.Write("Bridge.Nullable.getValue(");
}
expression.AcceptVisitor(this.Emitter);
if (isNullable && !isResultNullable)
{
this.WriteCloseParentheses();
}
if (!hasValue)
{
this.WriteComma();
if (castCode != null)
{
this.Write(castCode);
}
else
{
this.EmitCastType(type);
}
}
if (isResultNullable && method != Bridge.Translator.Emitter.IS)
{
this.WriteComma();
this.WriteScript(true);
}
this.WriteCloseParentheses();
}
public static string ToTypeScriptName(IType type, IEmitter emitter, bool asDefinition = false, bool excludens = false, bool ignoreDependency = false)
{
if (type.Kind == TypeKind.Delegate)
{
var method = type.GetDelegateInvokeMethod();
StringBuilder sb = new StringBuilder();
sb.Append("{");
sb.Append("(");
var last = method.Parameters.LastOrDefault();
foreach (var p in method.Parameters)
{
var ptype = BridgeTypes.ToTypeScriptName(p.Type, emitter);
if (p.IsOut || p.IsRef)
{
ptype = "{v: " + ptype + "}";
}
sb.Append(p.Name + ": " + ptype);
if (p != last)
{
sb.Append(", ");
}
}
sb.Append(")");
sb.Append(": ");
sb.Append(BridgeTypes.ToTypeScriptName(method.ReturnType, emitter));
sb.Append("}");
return(sb.ToString());
}
if (type.IsKnownType(KnownTypeCode.String))
{
return("string");
}
if (type.IsKnownType(KnownTypeCode.Boolean))
{
return("boolean");
}
if (type.IsKnownType(KnownTypeCode.Void))
{
return("void");
}
if (type.IsKnownType(KnownTypeCode.Byte) ||
type.IsKnownType(KnownTypeCode.Char) ||
type.IsKnownType(KnownTypeCode.Decimal) ||
type.IsKnownType(KnownTypeCode.Double) ||
type.IsKnownType(KnownTypeCode.Int16) ||
type.IsKnownType(KnownTypeCode.Int32) ||
type.IsKnownType(KnownTypeCode.Int64) ||
type.IsKnownType(KnownTypeCode.SByte) ||
type.IsKnownType(KnownTypeCode.Single) ||
type.IsKnownType(KnownTypeCode.UInt16) ||
type.IsKnownType(KnownTypeCode.UInt32) ||
type.IsKnownType(KnownTypeCode.UInt64))
{
return("number");
}
if (type.Kind == TypeKind.Array)
{
ICSharpCode.NRefactory.TypeSystem.ArrayType arrayType = (ICSharpCode.NRefactory.TypeSystem.ArrayType)type;
return(BridgeTypes.ToTypeScriptName(arrayType.ElementType, emitter, asDefinition, excludens) + "[]");
}
if (type.Kind == TypeKind.Dynamic)
{
return("any");
}
if (type.Kind == TypeKind.Enum && type.DeclaringType != null && !excludens)
{
return("number");
}
if (NullableType.IsNullable(type))
{
return(BridgeTypes.ToTypeScriptName(NullableType.GetUnderlyingType(type), emitter, asDefinition, excludens));
}
BridgeType bridgeType = emitter.BridgeTypes.Get(type, true);
//string name = BridgeTypes.ConvertName(excludens ? type.Name : type.FullName);
var name = excludens ? "" : type.Namespace;
var hasTypeDef = bridgeType != null && bridgeType.TypeDefinition != null;
if (hasTypeDef)
{
var typeDef = bridgeType.TypeDefinition;
if (typeDef.IsNested && !excludens)
{
name = (string.IsNullOrEmpty(name) ? "" : (name + ".")) + BridgeTypes.GetParentNames(typeDef);
}
name = (string.IsNullOrEmpty(name) ? "" : (name + ".")) + BridgeTypes.ConvertName(typeDef.Name);
}
else
{
if (type.DeclaringType != null && !excludens)
{
name = (string.IsNullOrEmpty(name) ? "" : (name + ".")) + BridgeTypes.GetParentNames(type);
if (type.DeclaringType.TypeArguments.Count > 0)
{
name += "$" + type.TypeArguments.Count;
}
}
name = (string.IsNullOrEmpty(name) ? "" : (name + ".")) + BridgeTypes.ConvertName(type.Name);
}
bool isCustomName = false;
if (bridgeType != null)
{
if (!ignoreDependency && emitter.AssemblyInfo.OutputBy != OutputBy.Project &&
bridgeType.TypeInfo != null && bridgeType.TypeInfo.Namespace != emitter.TypeInfo.Namespace)
{
var info = BridgeTypes.GetNamespaceFilename(bridgeType.TypeInfo, emitter);
var ns = info.Item1;
var fileName = info.Item2;
if (!emitter.CurrentDependencies.Any(d => d.DependencyName == fileName))
{
emitter.CurrentDependencies.Add(new ModuleDependency()
{
DependencyName = fileName
});
}
}
name = BridgeTypes.AddModule(name, bridgeType, out isCustomName);
}
if (!hasTypeDef && !isCustomName && type.TypeArguments.Count > 0)
{
name += "$" + type.TypeArguments.Count;
}
if (!asDefinition && type.TypeArguments.Count > 0 && !Helpers.IsIgnoreGeneric(type, emitter))
{
StringBuilder sb = new StringBuilder(name);
bool needComma = false;
sb.Append("<");
foreach (var typeArg in type.TypeArguments)
{
if (needComma)
{
sb.Append(",");
}
needComma = true;
sb.Append(BridgeTypes.ToTypeScriptName(typeArg, emitter, asDefinition, excludens));
}
sb.Append(">");
name = sb.ToString();
}
return(name);
}
protected virtual string GetCastCode(Expression expression, AstType astType, out bool isInline)
{
var resolveResult = this.Emitter.Resolver.ResolveNode(astType, this.Emitter) as TypeResolveResult;
var exprResolveResult = this.Emitter.Resolver.ResolveNode(expression, this.Emitter);
string inline = null;
isInline = false;
var method = this.GetCastMethod(exprResolveResult.Type, resolveResult.Type, out inline);
if (method == null && (NullableType.IsNullable(exprResolveResult.Type) || NullableType.IsNullable(resolveResult.Type)))
{
method = this.GetCastMethod(NullableType.IsNullable(exprResolveResult.Type) ? NullableType.GetUnderlyingType(exprResolveResult.Type) : exprResolveResult.Type,
NullableType.IsNullable(resolveResult.Type) ? NullableType.GetUnderlyingType(resolveResult.Type) : resolveResult.Type, out inline);
}
if (inline != null)
{
this.InlineMethod = method;
isInline = true;
return(inline);
}
return(null);
}
protected virtual void EmitCastExpression(Expression expression, AstType type, string method)
{
var itype = this.Emitter.BridgeTypes.ToType(type);
bool isCastAttr;
string castCode = this.GetCastCode(expression, type, out isCastAttr);
var enumType = itype;
if (NullableType.IsNullable(enumType))
{
enumType = NullableType.GetUnderlyingType(enumType);
}
var castToEnum = enumType.Kind == TypeKind.Enum;
if (castToEnum)
{
itype = enumType.GetDefinition().EnumUnderlyingType;
var enumMode = Helpers.EnumEmitMode(enumType);
if (enumMode >= 3 && enumMode < 7)
{
itype = this.Emitter.Resolver.Compilation.FindType(KnownTypeCode.String);
}
}
if (expression is NullReferenceExpression || (method != CS.Ops.IS && Helpers.IsIgnoreCast(type, this.Emitter)))
{
if (expression is ParenthesizedExpression)
{
expression = ((ParenthesizedExpression)expression).Expression;
}
expression.AcceptVisitor(this.Emitter);
return;
}
var expressionrr = this.Emitter.Resolver.ResolveNode(expression, this.Emitter);
var typerr = this.Emitter.Resolver.ResolveNode(type, this.Emitter);
if (expressionrr.Type.Kind == TypeKind.Enum)
{
var enumMode = Helpers.EnumEmitMode(expressionrr.Type);
if (enumMode >= 3 && enumMode < 7 && Helpers.IsIntegerType(itype, this.Emitter.Resolver))
{
throw new EmitterException(this.CastExpression, "Enum underlying type is string and cannot be casted to number");
}
}
if (method == CS.Ops.CAST && expressionrr.Type.Kind != TypeKind.Enum)
{
var cast_rr = this.Emitter.Resolver.ResolveNode(this.CastExpression, this.Emitter);
if (cast_rr is ConstantResolveResult)
{
var expectedType = this.Emitter.Resolver.Resolver.GetExpectedType(this.CastExpression);
var value = ((ConstantResolveResult)cast_rr).ConstantValue;
this.WriteCastValue(value, expectedType);
return;
}
else
{
var conv_rr = cast_rr as ConversionResolveResult;
if (conv_rr != null && conv_rr.Input is ConstantResolveResult && !conv_rr.Conversion.IsUserDefined)
{
var expectedType = this.Emitter.Resolver.Resolver.GetExpectedType(this.CastExpression);
var value = ((ConstantResolveResult)conv_rr.Input).ConstantValue;
this.WriteCastValue(value, expectedType);
return;
}
}
}
if (method == CS.Ops.IS && castToEnum)
{
this.Write(JS.Types.Bridge.IS);
this.WriteOpenParentheses();
expression.AcceptVisitor(this.Emitter);
this.Write(", ");
this.Write(BridgeTypes.ToJsName(itype, this.Emitter));
this.Write(")");
return;
}
if (expressionrr.Type.Equals(itype))
{
if (method == CS.Ops.IS)
{
this.Write(JS.Funcs.BRIDGE_HASVALUE);
this.WriteOpenParentheses();
}
expression.AcceptVisitor(this.Emitter);
if (method == CS.Ops.IS)
{
this.Write(")");
}
return;
}
bool isResultNullable = NullableType.IsNullable(typerr.Type);
if (castCode != null)
{
this.EmitInlineCast(expressionrr, expression, type, castCode, isCastAttr, method);
return;
}
bool isCast = method == CS.Ops.CAST;
if (isCast)
{
if (ConversionBlock.IsUserDefinedConversion(this, this.CastExpression.Expression) || ConversionBlock.IsUserDefinedConversion(this, this.CastExpression))
{
expression.AcceptVisitor(this.Emitter);
return;
}
}
var conversion = this.Emitter.Resolver.Resolver.GetConversion(expression);
if (conversion.IsNumericConversion || conversion.IsEnumerationConversion || (isCast && conversion.IsIdentityConversion))
{
expression.AcceptVisitor(this.Emitter);
return;
}
var simpleType = type as SimpleType;
bool hasValue = false;
if (simpleType != null && simpleType.Identifier == "dynamic")
{
if (method == CS.Ops.CAST || method == CS.Ops.AS)
{
expression.AcceptVisitor(this.Emitter);
return;
}
else if (method == CS.Ops.IS)
{
hasValue = true;
method = "hasValue";
}
}
bool unbox = !(itype.IsReferenceType.HasValue ? itype.IsReferenceType.Value : true) && !NullableType.IsNullable(itype) && isCast && conversion.IsUnboxingConversion;
if (unbox)
{
this.Write("System.Nullable.getValue(");
}
this.Write(JS.NS.BRIDGE);
this.WriteDot();
this.Write(method);
this.WriteOpenParentheses();
expression.AcceptVisitor(this.Emitter);
if (!hasValue)
{
this.WriteComma();
this.EmitCastType(itype);
}
if (isResultNullable && method != CS.Ops.IS)
{
this.WriteComma();
this.WriteScript(true);
}
this.WriteCloseParentheses();
if (unbox)
{
this.Write(")");
}
}
protected void VisitIdentifierExpression()
{
IdentifierExpression identifierExpression = this.IdentifierExpression;
int pos = this.Emitter.Output.Length;
ResolveResult resolveResult = null;
this.isRefArg = this.Emitter.IsRefArg;
this.Emitter.IsRefArg = false;
resolveResult = this.Emitter.Resolver.ResolveNode(identifierExpression, this.Emitter);
var id = identifierExpression.Identifier;
var isResolved = resolveResult != null && !(resolveResult is ErrorResolveResult);
var memberResult = resolveResult as MemberResolveResult;
if (this.Emitter.Locals != null && this.Emitter.Locals.ContainsKey(id) && resolveResult is LocalResolveResult)
{
var lrr = (LocalResolveResult)resolveResult;
if (this.Emitter.LocalsMap != null && this.Emitter.LocalsMap.ContainsKey(lrr.Variable) && !(identifierExpression.Parent is DirectionExpression))
{
this.Write(this.Emitter.LocalsMap[lrr.Variable]);
}
else if (this.Emitter.LocalsNamesMap != null && this.Emitter.LocalsNamesMap.ContainsKey(id))
{
this.Write(this.Emitter.LocalsNamesMap[id]);
}
else
{
this.Write(id);
}
Helpers.CheckValueTypeClone(resolveResult, identifierExpression, this, pos);
return;
}
if (resolveResult is TypeResolveResult)
{
this.Write(BridgeTypes.ToJsName(resolveResult.Type, this.Emitter));
/*if (this.Emitter.Validator.IsExternalType(resolveResult.Type.GetDefinition()) || resolveResult.Type.Kind == TypeKind.Enum)
* {
* this.Write(BridgeTypes.ToJsName(resolveResult.Type, this.Emitter));
* }
* else
* {
* this.Write("Bridge.get(" + BridgeTypes.ToJsName(resolveResult.Type, this.Emitter) + ")");
* }*/
return;
}
string inlineCode = memberResult != null?this.Emitter.GetInline(memberResult.Member) : null;
var isInvoke = identifierExpression.Parent is InvocationExpression && (((InvocationExpression)(identifierExpression.Parent)).Target == identifierExpression);
if (memberResult != null && memberResult.Member is IMethod && isInvoke)
{
var i_rr = this.Emitter.Resolver.ResolveNode(identifierExpression.Parent, this.Emitter) as CSharpInvocationResolveResult;
if (i_rr != null && !i_rr.IsExpandedForm)
{
var tpl = this.Emitter.GetAttribute(memberResult.Member.Attributes, JS.NS.BRIDGE + ".TemplateAttribute");
if (tpl != null && tpl.PositionalArguments.Count == 2)
{
inlineCode = tpl.PositionalArguments[1].ConstantValue.ToString();
}
}
}
if (string.IsNullOrEmpty(inlineCode) && memberResult != null &&
memberResult.Member is IMethod &&
!(memberResult is InvocationResolveResult) &&
!(
identifierExpression.Parent is InvocationExpression &&
identifierExpression.NextSibling != null &&
identifierExpression.NextSibling.Role is TokenRole &&
((TokenRole)identifierExpression.NextSibling.Role).Token == "("
)
)
{
var method = (IMethod)memberResult.Member;
if (method.TypeArguments.Count > 0)
{
inlineCode = MemberReferenceBlock.GenerateInlineForMethodReference(method, this.Emitter);
}
}
bool hasInline = !string.IsNullOrEmpty(inlineCode);
bool hasThis = hasInline && inlineCode.Contains("{this}");
if (hasInline && inlineCode.StartsWith("<self>"))
{
hasThis = true;
inlineCode = inlineCode.Substring(6);
}
if (hasThis)
{
Emitter.ThisRefCounter++;
this.Write("");
var oldBuilder = this.Emitter.Output;
this.Emitter.Output = new StringBuilder();
if (memberResult.Member.IsStatic)
{
this.Write(BridgeTypes.ToJsName(memberResult.Member.DeclaringType, this.Emitter));
/*if (!this.Emitter.Validator.IsExternalType(memberResult.Member.DeclaringTypeDefinition) && memberResult.Member.DeclaringTypeDefinition.Kind != TypeKind.Enum)
* {
* this.Write("(Bridge.get(" + BridgeTypes.ToJsName(memberResult.Member.DeclaringType, this.Emitter) + "))");
* }
* else
* {
* this.Write(BridgeTypes.ToJsName(memberResult.Member.DeclaringType, this.Emitter));
* }*/
}
else
{
this.WriteThis();
}
var oldInline = inlineCode;
var thisArg = this.Emitter.Output.ToString();
int thisIndex = inlineCode.IndexOf("{this}");
inlineCode = inlineCode.Replace("{this}", thisArg);
this.Emitter.Output = oldBuilder;
int[] range = null;
if (thisIndex > -1)
{
range = new[] { thisIndex, thisIndex + thisArg.Length };
}
if (resolveResult is InvocationResolveResult)
{
this.PushWriter(inlineCode, null, thisArg, range);
}
else
{
if (memberResult.Member is IMethod)
{
ResolveResult targetrr = null;
if (memberResult.Member.IsStatic)
{
targetrr = new TypeResolveResult(memberResult.Member.DeclaringType);
}
new InlineArgumentsBlock(this.Emitter, new ArgumentsInfo(this.Emitter, this.IdentifierExpression, resolveResult), oldInline, (IMethod)memberResult.Member, targetrr).EmitFunctionReference();
}
else if (memberResult != null && memberResult.Member is IField && inlineCode.Contains("{0}"))
{
this.PushWriter(inlineCode, null, thisArg, range);
}
else if (InlineArgumentsBlock.FormatArgRegex.IsMatch(inlineCode))
{
this.PushWriter(inlineCode, null, thisArg, range);
}
else
{
this.Write(inlineCode);
}
}
return;
}
if (hasInline)
{
if (!memberResult.Member.IsStatic)
{
inlineCode = "this." + inlineCode;
}
if (resolveResult is InvocationResolveResult)
{
this.PushWriter(inlineCode);
}
else
{
if (memberResult.Member is IMethod)
{
ResolveResult targetrr = null;
if (memberResult.Member.IsStatic)
{
targetrr = new TypeResolveResult(memberResult.Member.DeclaringType);
}
new InlineArgumentsBlock(this.Emitter, new ArgumentsInfo(this.Emitter, this.IdentifierExpression, resolveResult), inlineCode, (IMethod)memberResult.Member, targetrr).EmitFunctionReference();
}
else if (InlineArgumentsBlock.FormatArgRegex.IsMatch(inlineCode))
{
this.PushWriter(inlineCode);
}
else
{
this.Write(inlineCode);
}
}
return;
}
string appendAdditionalCode = null;
if (memberResult != null &&
memberResult.Member is IMethod &&
!(memberResult is InvocationResolveResult) &&
!(
identifierExpression.Parent is InvocationExpression &&
identifierExpression.NextSibling != null &&
identifierExpression.NextSibling.Role is TokenRole &&
((TokenRole)identifierExpression.NextSibling.Role).Token == "("
)
)
{
if (!string.IsNullOrEmpty(inlineCode))
{
ResolveResult targetrr = null;
if (memberResult.Member.IsStatic)
{
targetrr = new TypeResolveResult(memberResult.Member.DeclaringType);
}
new InlineArgumentsBlock(this.Emitter,
new ArgumentsInfo(this.Emitter, identifierExpression, resolveResult), inlineCode,
(IMethod)memberResult.Member, targetrr).EmitFunctionReference();
}
else
{
var resolvedMethod = (IMethod)memberResult.Member;
bool isStatic = resolvedMethod != null && resolvedMethod.IsStatic;
if (!isStatic)
{
var isExtensionMethod = resolvedMethod.IsExtensionMethod;
this.Write(isExtensionMethod ? JS.Funcs.BRIDGE_BIND_SCOPE : JS.Funcs.BRIDGE_CACHE_BIND);
this.WriteOpenParentheses();
this.WriteThis();
this.Write(", ");
appendAdditionalCode = ")";
}
}
}
if (memberResult != null && memberResult.Member.SymbolKind == SymbolKind.Field && this.Emitter.IsMemberConst(memberResult.Member) && this.Emitter.IsInlineConst(memberResult.Member))
{
this.WriteScript(memberResult.ConstantValue);
return;
}
if (memberResult != null && memberResult.Member.SymbolKind == SymbolKind.Property && memberResult.TargetResult.Type.Kind != TypeKind.Anonymous)
{
bool isStatement = false;
string valueVar = null;
if (this.Emitter.IsUnaryAccessor)
{
isStatement = identifierExpression.Parent is UnaryOperatorExpression && identifierExpression.Parent.Parent is ExpressionStatement;
if (NullableType.IsNullable(memberResult.Type))
{
isStatement = false;
}
if (!isStatement)
{
this.WriteOpenParentheses();
valueVar = this.GetTempVarName();
this.Write(valueVar);
this.Write(" = ");
}
}
this.WriteTarget(memberResult);
if (!string.IsNullOrWhiteSpace(inlineCode))
{
//this.Write(inlineCode);
if (resolveResult is InvocationResolveResult || (memberResult.Member.SymbolKind == SymbolKind.Property && this.Emitter.IsAssignment))
{
this.PushWriter(inlineCode);
}
else
{
this.Write(inlineCode);
}
}
else if (memberResult.Member is IProperty)
{
var name = Helpers.GetPropertyRef(memberResult.Member, this.Emitter);
this.WriteIdentifier(name);
}
else if (!this.Emitter.IsAssignment)
{
if (this.Emitter.IsUnaryAccessor)
{
bool isDecimal = Helpers.IsDecimalType(memberResult.Member.ReturnType, this.Emitter.Resolver);
bool isLong = Helpers.Is64Type(memberResult.Member.ReturnType, this.Emitter.Resolver);
bool isNullable = NullableType.IsNullable(memberResult.Member.ReturnType);
if (isStatement)
{
this.Write(Helpers.GetPropertyRef(memberResult.Member, this.Emitter, true));
this.WriteOpenParentheses();
if (isDecimal || isLong)
{
if (isNullable)
{
this.Write(JS.Types.SYSTEM_NULLABLE + "." + JS.Funcs.Math.LIFT1);
this.WriteOpenParentheses();
if (this.Emitter.UnaryOperatorType == UnaryOperatorType.Increment ||
this.Emitter.UnaryOperatorType == UnaryOperatorType.PostIncrement)
{
this.WriteScript(JS.Funcs.Math.INC);
}
else
{
this.WriteScript(JS.Funcs.Math.DEC);
}
this.WriteComma();
this.WriteTarget(memberResult);
this.Write(Helpers.GetPropertyRef(memberResult.Member, this.Emitter, false));
this.WriteOpenParentheses();
this.WriteCloseParentheses();
this.WriteCloseParentheses();
}
else
{
this.WriteTarget(memberResult);
this.Write(Helpers.GetPropertyRef(memberResult.Member, this.Emitter, false));
this.WriteOpenParentheses();
this.WriteCloseParentheses();
this.WriteDot();
if (this.Emitter.UnaryOperatorType == UnaryOperatorType.Increment ||
this.Emitter.UnaryOperatorType == UnaryOperatorType.PostIncrement)
{
this.Write(JS.Funcs.Math.INC);
}
else
{
this.Write(JS.Funcs.Math.DEC);
}
this.WriteOpenParentheses();
this.WriteCloseParentheses();
}
}
else
{
this.WriteTarget(memberResult);
this.Write(Helpers.GetPropertyRef(memberResult.Member, this.Emitter, false));
this.WriteOpenParentheses();
this.WriteCloseParentheses();
if (this.Emitter.UnaryOperatorType == UnaryOperatorType.Increment || this.Emitter.UnaryOperatorType == UnaryOperatorType.PostIncrement)
{
this.Write("+");
}
else
{
this.Write("-");
}
this.Write("1");
}
this.WriteCloseParentheses();
}
else
{
this.Write(Helpers.GetPropertyRef(memberResult.Member, this.Emitter, false));
this.WriteOpenParentheses();
this.WriteCloseParentheses();
this.WriteComma();
this.WriteTarget(memberResult);
this.Write(Helpers.GetPropertyRef(memberResult.Member, this.Emitter, true));
this.WriteOpenParentheses();
if (isDecimal || isLong)
{
if (isNullable)
{
this.Write(JS.Types.SYSTEM_NULLABLE + "." + JS.Funcs.Math.LIFT1);
this.WriteOpenParentheses();
if (this.Emitter.UnaryOperatorType == UnaryOperatorType.Increment ||
this.Emitter.UnaryOperatorType == UnaryOperatorType.PostIncrement)
{
this.WriteScript(JS.Funcs.Math.INC);
}
else
{
this.WriteScript(JS.Funcs.Math.DEC);
}
this.WriteComma();
this.Write(valueVar);
this.WriteCloseParentheses();
}
else
{
this.Write(valueVar);
this.WriteDot();
if (this.Emitter.UnaryOperatorType == UnaryOperatorType.Increment ||
this.Emitter.UnaryOperatorType == UnaryOperatorType.PostIncrement)
{
this.Write(JS.Funcs.Math.INC);
}
else
{
this.Write(JS.Funcs.Math.DEC);
}
this.WriteOpenParentheses();
this.WriteCloseParentheses();
}
}
else
{
this.Write(valueVar);
if (this.Emitter.UnaryOperatorType == UnaryOperatorType.Increment || this.Emitter.UnaryOperatorType == UnaryOperatorType.PostIncrement)
{
this.Write("+");
}
else
{
this.Write("-");
}
this.Write("1");
}
this.WriteCloseParentheses();
this.WriteComma();
if (this.Emitter.UnaryOperatorType == UnaryOperatorType.Increment ||
this.Emitter.UnaryOperatorType == UnaryOperatorType.Decrement)
{
this.WriteTarget(memberResult);
this.Write(Helpers.GetPropertyRef(memberResult.Member, this.Emitter, false));
this.WriteOpenParentheses();
this.WriteCloseParentheses();
}
else
{
this.Write(valueVar);
}
this.WriteCloseParentheses();
if (valueVar != null)
{
this.RemoveTempVar(valueVar);
}
}
}
else
{
this.Write(Helpers.GetPropertyRef(memberResult.Member, this.Emitter));
this.WriteOpenParentheses();
this.WriteCloseParentheses();
}
}
else if (this.Emitter.AssignmentType != AssignmentOperatorType.Assign)
{
string trg;
if (memberResult.Member.IsStatic)
{
trg = BridgeTypes.ToJsName(memberResult.Member.DeclaringType, this.Emitter);
}
else
{
trg = "this";
}
bool isBool = memberResult != null && NullableType.IsNullable(memberResult.Member.ReturnType) ? NullableType.GetUnderlyingType(memberResult.Member.ReturnType).IsKnownType(KnownTypeCode.Boolean) : memberResult.Member.ReturnType.IsKnownType(KnownTypeCode.Boolean);
bool skipGet = false;
var orr = this.Emitter.Resolver.ResolveNode(identifierExpression.Parent, this.Emitter) as OperatorResolveResult;
bool special = orr != null && orr.IsLiftedOperator;
if (!special && isBool &&
(this.Emitter.AssignmentType == AssignmentOperatorType.BitwiseAnd ||
this.Emitter.AssignmentType == AssignmentOperatorType.BitwiseOr))
{
skipGet = true;
}
if (skipGet)
{
this.PushWriter(string.Concat(Helpers.GetPropertyRef(memberResult.Member, this.Emitter, true), "({0})"));
}
else
{
this.PushWriter(string.Concat(Helpers.GetPropertyRef(memberResult.Member, this.Emitter, true),
"(",
trg,
".",
Helpers.GetPropertyRef(memberResult.Member, this.Emitter, false),
"()",
"{0})"));
}
}
else
{
this.PushWriter(Helpers.GetPropertyRef(memberResult.Member, this.Emitter, true) + "({0})");
}
}
else if (memberResult != null && memberResult.Member is IEvent)
{
if (this.Emitter.IsAssignment &&
(this.Emitter.AssignmentType == AssignmentOperatorType.Add ||
this.Emitter.AssignmentType == AssignmentOperatorType.Subtract))
{
this.WriteTarget(memberResult);
if (!string.IsNullOrWhiteSpace(inlineCode))
{
this.Write(inlineCode);
}
else
{
this.Write(Helpers.GetAddOrRemove(this.Emitter.AssignmentType == AssignmentOperatorType.Add));
this.Write(
OverloadsCollection.Create(this.Emitter, memberResult.Member,
this.Emitter.AssignmentType == AssignmentOperatorType.Subtract).GetOverloadName());
}
this.WriteOpenParentheses();
}
else
{
this.WriteTarget(memberResult);
this.Write(this.Emitter.GetEntityName(memberResult.Member));
}
}
else
{
if (!string.IsNullOrWhiteSpace(inlineCode))
{
this.Write(inlineCode);
}
else if (isResolved)
{
if (resolveResult is LocalResolveResult)
{
var localResolveResult = (LocalResolveResult)resolveResult;
this.Write(localResolveResult.Variable.Name);
}
else if (memberResult != null)
{
this.WriteTarget(memberResult);
string name = OverloadsCollection.Create(this.Emitter, memberResult.Member).GetOverloadName();
if (isRefArg)
{
this.WriteScript(name);
}
else if (memberResult.Member is IField)
{
this.WriteIdentifier(name);
}
else
{
this.Write(name);
}
}
else
{
this.Write(resolveResult.ToString());
}
}
else
{
throw new EmitterException(identifierExpression, "Cannot resolve identifier: " + id);
}
}
if (appendAdditionalCode != null)
{
this.Write(appendAdditionalCode);
}
Helpers.CheckValueTypeClone(resolveResult, identifierExpression, this, pos);
}
/// <summary>
/// Gets whether the specific binary instruction is compatible with a compound operation on the specified type.
/// </summary>
internal static bool IsBinaryCompatibleWithType(BinaryNumericInstruction binary, IType type)
{
if (binary.IsLifted)
{
if (!NullableType.IsNullable(type))
{
return(false);
}
type = NullableType.GetUnderlyingType(type);
}
if (type.Kind == TypeKind.Unknown)
{
return(false); // avoid introducing a potentially-incorrect compound assignment
}
else if (type.Kind == TypeKind.Enum)
{
switch (binary.Operator)
{
case BinaryNumericOperator.Add:
case BinaryNumericOperator.Sub:
case BinaryNumericOperator.BitAnd:
case BinaryNumericOperator.BitOr:
case BinaryNumericOperator.BitXor:
break; // OK
default:
return(false); // operator not supported on enum types
}
}
else if (type.Kind == TypeKind.Pointer)
{
switch (binary.Operator)
{
case BinaryNumericOperator.Add:
case BinaryNumericOperator.Sub:
// ensure that the byte offset is a multiple of the pointer size
return(PointerArithmeticOffset.Detect(
binary.Right,
(PointerType)type,
checkForOverflow: binary.CheckForOverflow
) != null);
default:
return(false); // operator not supported on pointer types
}
}
if (binary.Sign != Sign.None)
{
if (type.IsCSharpSmallIntegerType())
{
// C# will use numeric promotion to int, binary op must be signed
if (binary.Sign != Sign.Signed)
{
return(false);
}
}
else
{
// C# will use sign from type
if (type.GetSign() != binary.Sign)
{
return(false);
}
}
}
// Can't transform if the RHS value would be need to be truncated for the LHS type.
if (Transforms.TransformAssignment.IsImplicitTruncation(binary.Right, type, binary.IsLifted))
{
return(false);
}
return(true);
}
Expression ResolveResultExpression(ResolveContext ec)
{
IType d = expr.Type;
bool d_is_nullable = false;
//
// If E is a method group or the null literal, or if the type of E is a reference
// type or a nullable type and the value of E is null, the result is false
//
if (expr is NullConstant || expr.eclass == ExprClass.MethodGroup)
{
return(CreateConstantResult(ec, false));
}
if (NullableType.IsNullable(d))
{
var ut = NullableType.GetUnderlyingType(d);
if (!(ut is TypeParameterSpec))
{
d = ut;
d_is_nullable = true;
}
}
IType t = probe_type_expr;
bool t_is_nullable = false;
if (NullableType.IsNullable(t))
{
var ut = NullableType.GetUnderlyingType(t);
if (!(ut is TypeParameterSpec))
{
t = ut;
t_is_nullable = true;
}
}
//if (t.Kind == TypeKind.Struct)
//{
// if (d == t)
// {
// //
// // D and T are the same value types but D can be null
// //
// if (d_is_nullable && !t_is_nullable)
// {
// expr_unwrap = Nullable.Unwrap.Create(expr, true);
// return this;
// }
// //
// // The result is true if D and T are the same value types
// //
// return CreateConstantResult(ec, true);
// }
// var tp = d as TypeParameterSpec;
// if (tp != null)
// return ResolveGenericParameter(ec, t, tp);
// //
// // An unboxing conversion exists
// //
// if (Convert.ExplicitReferenceConversionExists(d, t))
// return this;
// //
// // open generic type
// //
// if (d is InflatedTypeSpec && InflatedTypeSpec.ContainsTypeParameter(d))
// return this;
//}
//else
//{
// var tps = t as TypeParameterSpec;
// if (tps != null)
// return ResolveGenericParameter(ec, d, tps);
// if (t.BuiltinType == BuiltinTypeSpec.Type.Dynamic)
// {
// ec.Report.Warning(1981, 3, loc,
// "Using `{0}' to test compatibility with `{1}' is identical to testing compatibility with `object'",
// OperatorName, t.GetSignatureForError());
// }
// if (TypeManager.IsGenericParameter(d))
// return ResolveGenericParameter(ec, t, (TypeParameterSpec)d);
// if (TypeSpec.IsValueType(d))
// {
// if (Convert.ImplicitBoxingConversion(null, d, t) != null)
// {
// if (d_is_nullable && !t_is_nullable)
// {
// expr_unwrap = Nullable.Unwrap.Create(expr, false);
// return this;
// }
// return CreateConstantResult(ec, true);
// }
// }
// else
// {
// if (Convert.ImplicitReferenceConversionExists(d, t))
// {
// var c = expr as Constant;
// if (c != null)
// return CreateConstantResult(ec, !c.IsNull);
// //
// // Do not optimize for imported type or dynamic type
// //
// if (d.MemberDefinition.IsImported && d.BuiltinType != BuiltinTypeSpec.Type.None &&
// d.MemberDefinition.DeclaringAssembly != t.MemberDefinition.DeclaringAssembly)
// {
// return this;
// }
// if (d.BuiltinType == BuiltinTypeSpec.Type.Dynamic)
// return this;
// //
// // Turn is check into simple null check for implicitly convertible reference types
// //
// return ReducedExpression.Create(
// new Binary(Binary.Operator.Inequality, expr, new NullLiteral(loc), Binary.State.UserOperatorsExcluded).Resolve(ec),
// this).Resolve(ec);
// }
// if (Convert.ExplicitReferenceConversionExists(d, t))
// return this;
// //
// // open generic type
// //
// if ((d is InflatedTypeSpec || d.IsArray) && InflatedTypeSpec.ContainsTypeParameter(d))
// return this;
// }
//}
//TODO:Full Support IS EXPRESSION
return(CreateConstantResult(ec, false));
}
/// <summary>
/// stloc v(value)
/// if (logic.not(call get_HasValue(ldloca v))) throw(...)
/// ... Call(arg1, arg2, call GetValueOrDefault(ldloca v), arg4) ...
/// =>
/// ... Call(arg1, arg2, if.notnull(value, throw(...)), arg4) ...
/// </summary>
bool TransformThrowExpressionValueTypes(Block block, int pos, StatementTransformContext context)
{
if (pos + 2 >= block.Instructions.Count)
{
return(false);
}
if (!(block.Instructions[pos] is StLoc stloc))
{
return(false);
}
ILVariable v = stloc.Variable;
if (!(v.StoreCount == 1 && v.LoadCount == 0 && v.AddressCount == 2))
{
return(false);
}
if (!block.Instructions[pos + 1].MatchIfInstruction(out var condition, out var trueInst))
{
return(false);
}
if (!(Block.Unwrap(trueInst) is Throw throwInst))
{
return(false);
}
if (!condition.MatchLogicNot(out var arg))
{
return(false);
}
if (!(arg is CallInstruction call && NullableLiftingTransform.MatchHasValueCall(call, v)))
{
return(false);
}
var throwInstParent = throwInst.Parent;
var throwInstChildIndex = throwInst.ChildIndex;
var nullCoalescingWithThrow = new NullCoalescingInstruction(
NullCoalescingKind.NullableWithValueFallback,
stloc.Value,
throwInst);
var resultType = NullableType.GetUnderlyingType(call.Method.DeclaringType).GetStackType();
nullCoalescingWithThrow.UnderlyingResultType = resultType;
var result = ILInlining.FindLoadInNext(block.Instructions[pos + 2], v, nullCoalescingWithThrow, InliningOptions.None);
if (result.Type == ILInlining.FindResultType.Found &&
NullableLiftingTransform.MatchGetValueOrDefault(result.LoadInst.Parent, v))
{
context.Step("NullCoalescingTransform (value types + throw expression)", stloc);
throwInst.resultType = resultType;
result.LoadInst.Parent.ReplaceWith(nullCoalescingWithThrow);
block.Instructions.RemoveRange(pos, 2); // remove store(s) and if instruction
return(true);
}
else
{
// reset the primary position (see remarks on ILInstruction.Parent)
stloc.Value = stloc.Value;
var children = throwInstParent.Children;
children[throwInstChildIndex] = throwInst;
return(false);
}
}
private void HandleDecimal(ResolveResult resolveOperator, bool isLong = false)
{
var orr = resolveOperator as OperatorResolveResult;
var op = this.UnaryOperatorExpression.Operator;
var oldType = this.Emitter.UnaryOperatorType;
var oldAccessor = this.Emitter.IsUnaryAccessor;
var typeCode = isLong ? KnownTypeCode.Int64 : KnownTypeCode.Decimal;
this.Emitter.UnaryOperatorType = op;
var argResolverResult = this.Emitter.Resolver.ResolveNode(this.UnaryOperatorExpression.Expression, this.Emitter);
bool nullable = NullableType.IsNullable(argResolverResult.Type);
bool isAccessor = false;
var memberArgResolverResult = argResolverResult as MemberResolveResult;
if (memberArgResolverResult != null && memberArgResolverResult.Member is IProperty)
{
var isIgnore = this.Emitter.Validator.IsIgnoreType(memberArgResolverResult.Member.DeclaringTypeDefinition);
var inlineAttr = this.Emitter.GetAttribute(memberArgResolverResult.Member.Attributes, Translator.Bridge_ASSEMBLY + ".TemplateAttribute");
var ignoreAccessor = this.Emitter.Validator.IsIgnoreType(((IProperty)memberArgResolverResult.Member).Getter);
var isAccessorsIndexer = this.Emitter.Validator.IsAccessorsIndexer(memberArgResolverResult.Member);
isAccessor = true;
if (inlineAttr == null && (isIgnore || ignoreAccessor) && !isAccessorsIndexer)
{
isAccessor = false;
}
}
else if (argResolverResult is ArrayAccessResolveResult)
{
isAccessor = ((ArrayAccessResolveResult)argResolverResult).Indexes.Count > 1;
}
var isOneOp = op == UnaryOperatorType.Increment ||
op == UnaryOperatorType.Decrement ||
op == UnaryOperatorType.PostIncrement ||
op == UnaryOperatorType.PostDecrement;
if (isAccessor && isOneOp)
{
this.Emitter.IsUnaryAccessor = true;
if (nullable)
{
this.Write("(Bridge.hasValue(");
this.Emitter.IsUnaryAccessor = false;
this.UnaryOperatorExpression.Expression.AcceptVisitor(this.Emitter);
this.Write(") ? ");
this.Emitter.IsUnaryAccessor = true;
this.UnaryOperatorExpression.Expression.AcceptVisitor(this.Emitter);
this.Write(" : null)");
}
else
{
this.UnaryOperatorExpression.Expression.AcceptVisitor(this.Emitter);
}
this.Emitter.UnaryOperatorType = oldType;
this.Emitter.IsUnaryAccessor = oldAccessor;
return;
}
var method = orr != null ? orr.UserDefinedOperatorMethod : null;
if (orr != null && method == null)
{
var name = Helpers.GetUnaryOperatorMethodName(this.UnaryOperatorExpression.Operator);
var type = NullableType.IsNullable(orr.Type) ? NullableType.GetUnderlyingType(orr.Type) : orr.Type;
method = type.GetMethods(m => m.Name == name, GetMemberOptions.IgnoreInheritedMembers).FirstOrDefault();
}
if (orr.IsLiftedOperator)
{
if (!isOneOp)
{
this.Write(Bridge.Translator.Emitter.ROOT + ".Nullable.");
}
string action = "lift1";
string op_name = null;
switch (this.UnaryOperatorExpression.Operator)
{
case UnaryOperatorType.Minus:
op_name = "neg";
break;
case UnaryOperatorType.Plus:
op_name = "clone";
break;
case UnaryOperatorType.BitNot:
op_name = "not";
break;
case UnaryOperatorType.Increment:
case UnaryOperatorType.Decrement:
this.Write("(Bridge.hasValue(");
this.UnaryOperatorExpression.Expression.AcceptVisitor(this.Emitter);
this.Write(") ? ");
this.WriteOpenParentheses();
this.UnaryOperatorExpression.Expression.AcceptVisitor(this.Emitter);
this.Write(" = Bridge.Nullable.lift1('" + (op == UnaryOperatorType.Decrement ? "dec" : "inc") + "', ");
this.UnaryOperatorExpression.Expression.AcceptVisitor(this.Emitter);
this.AddOveflowFlag(typeCode, "dec", true);
this.Write(")");
this.WriteCloseParentheses();
this.Write(" : null)");
break;
case UnaryOperatorType.PostIncrement:
case UnaryOperatorType.PostDecrement:
this.Write("(Bridge.hasValue(");
this.UnaryOperatorExpression.Expression.AcceptVisitor(this.Emitter);
this.Write(") ? ");
this.WriteOpenParentheses();
var valueVar = this.GetTempVarName();
this.Write(valueVar);
this.Write(" = ");
this.UnaryOperatorExpression.Expression.AcceptVisitor(this.Emitter);
this.WriteComma();
this.UnaryOperatorExpression.Expression.AcceptVisitor(this.Emitter);
this.Write(" = Bridge.Nullable.lift1('" + (op == UnaryOperatorType.PostDecrement ? "dec" : "inc") + "', ");
this.UnaryOperatorExpression.Expression.AcceptVisitor(this.Emitter);
this.AddOveflowFlag(typeCode, "dec", true);
this.Write(")");
this.WriteComma();
this.Write(valueVar);
this.WriteCloseParentheses();
this.RemoveTempVar(valueVar);
this.Write(" : null)");
break;
}
if (!isOneOp)
{
this.Write(action);
this.WriteOpenParentheses();
this.WriteScript(op_name);
this.WriteComma();
new ExpressionListBlock(this.Emitter,
new Expression[] { this.UnaryOperatorExpression.Expression }, null).Emit();
this.AddOveflowFlag(typeCode, op_name, true);
this.WriteCloseParentheses();
}
}
else if (method == null)
{
string op_name = null;
var isStatement = this.UnaryOperatorExpression.Parent is ExpressionStatement;
if (isStatement)
{
if (op == UnaryOperatorType.PostIncrement)
{
op = UnaryOperatorType.Increment;
}
else if (op == UnaryOperatorType.PostDecrement)
{
op = UnaryOperatorType.Decrement;
}
}
switch (op)
{
case UnaryOperatorType.Minus:
op_name = "neg";
break;
case UnaryOperatorType.Plus:
op_name = "clone";
break;
case UnaryOperatorType.BitNot:
op_name = "not";
break;
case UnaryOperatorType.Increment:
case UnaryOperatorType.Decrement:
if (!isStatement)
{
this.WriteOpenParentheses();
}
this.UnaryOperatorExpression.Expression.AcceptVisitor(this.Emitter);
this.Write(" = ");
this.UnaryOperatorExpression.Expression.AcceptVisitor(this.Emitter);
this.Write("." + (op == UnaryOperatorType.Decrement ? "dec" : "inc") + "(");
this.AddOveflowFlag(typeCode, "dec", false);
this.Write(")");
if (!isStatement)
{
this.WriteCloseParentheses();
}
break;
case UnaryOperatorType.PostIncrement:
case UnaryOperatorType.PostDecrement:
this.WriteOpenParentheses();
var valueVar = this.GetTempVarName();
this.Write(valueVar);
this.Write(" = ");
this.UnaryOperatorExpression.Expression.AcceptVisitor(this.Emitter);
this.WriteComma();
this.UnaryOperatorExpression.Expression.AcceptVisitor(this.Emitter);
this.Write(" = ");
this.UnaryOperatorExpression.Expression.AcceptVisitor(this.Emitter);
this.Write("." + (op == UnaryOperatorType.PostDecrement ? "dec" : "inc") + "(");
this.AddOveflowFlag(typeCode, "dec", false);
this.Write("), ");
this.Write(valueVar);
this.WriteCloseParentheses();
this.RemoveTempVar(valueVar);
break;
}
if (!isOneOp)
{
this.UnaryOperatorExpression.Expression.AcceptVisitor(this.Emitter);
this.WriteDot();
this.Write(op_name);
this.WriteOpenParentheses();
this.AddOveflowFlag(typeCode, op_name, false);
this.WriteCloseParentheses();
}
}
else
{
var inline = this.Emitter.GetInline(method);
if (!string.IsNullOrWhiteSpace(inline))
{
if (isOneOp)
{
var isStatement = this.UnaryOperatorExpression.Parent is ExpressionStatement;
if (isStatement || this.UnaryOperatorExpression.Operator == UnaryOperatorType.Increment ||
this.UnaryOperatorExpression.Operator == UnaryOperatorType.Decrement)
{
if (!isStatement)
{
this.WriteOpenParentheses();
}
this.UnaryOperatorExpression.Expression.AcceptVisitor(this.Emitter);
this.Write(" = ");
new InlineArgumentsBlock(this.Emitter,
new ArgumentsInfo(this.Emitter, this.UnaryOperatorExpression, orr, method), inline).Emit
();
if (!isStatement)
{
this.WriteCloseParentheses();
}
}
else
{
this.WriteOpenParentheses();
var valueVar = this.GetTempVarName();
this.Write(valueVar);
this.Write(" = ");
this.UnaryOperatorExpression.Expression.AcceptVisitor(this.Emitter);
this.WriteComma();
this.UnaryOperatorExpression.Expression.AcceptVisitor(this.Emitter);
this.Write(" = ");
new InlineArgumentsBlock(this.Emitter, new ArgumentsInfo(this.Emitter, this.UnaryOperatorExpression, orr, method), inline).Emit();
this.WriteComma();
this.Write(valueVar);
this.WriteCloseParentheses();
this.RemoveTempVar(valueVar);
}
}
else
{
new InlineArgumentsBlock(this.Emitter,
new ArgumentsInfo(this.Emitter, this.UnaryOperatorExpression, orr, method), inline).Emit();
}
}
else if (!this.Emitter.Validator.IsIgnoreType(method.DeclaringTypeDefinition))
{
this.Write(BridgeTypes.ToJsName(method.DeclaringType, this.Emitter));
this.WriteDot();
this.Write(OverloadsCollection.Create(this.Emitter, method).GetOverloadName());
this.WriteOpenParentheses();
new ExpressionListBlock(this.Emitter,
new Expression[] { this.UnaryOperatorExpression.Expression }, null).Emit();
this.WriteCloseParentheses();
}
}
this.Emitter.UnaryOperatorType = oldType;
}
protected void VisitBinaryOperatorExpression()
{
BinaryOperatorExpression binaryOperatorExpression = BinaryOperatorExpression;
if (Emitter.IsAsync && (
binaryOperatorExpression.Operator == BinaryOperatorType.BitwiseAnd ||
binaryOperatorExpression.Operator == BinaryOperatorType.BitwiseOr ||
binaryOperatorExpression.Operator == BinaryOperatorType.ConditionalOr ||
binaryOperatorExpression.Operator == BinaryOperatorType.ConditionalAnd
) && GetAwaiters(binaryOperatorExpression).Length > 0)
{
if (Emitter.AsyncBlock.WrittenAwaitExpressions.Contains(binaryOperatorExpression))
{
var index = Array.IndexOf(Emitter.AsyncBlock.AwaitExpressions, binaryOperatorExpression) + 1;
Write(JS.Vars.ASYNC_TASK_RESULT + index);
}
else
{
var index = Array.IndexOf(Emitter.AsyncBlock.AwaitExpressions, binaryOperatorExpression) + 1;
WriteAsyncBinaryExpression(index);
}
return;
}
var resolveOperator = Emitter.Resolver.ResolveNode(binaryOperatorExpression);
var expectedType = Emitter.Resolver.Resolver.GetExpectedType(binaryOperatorExpression);
bool isDecimalExpected = Helpers.IsDecimalType(expectedType, Emitter.Resolver);
bool isDecimal = Helpers.IsDecimalType(resolveOperator.Type, Emitter.Resolver);
bool isLongExpected = Helpers.Is64Type(expectedType, Emitter.Resolver);
bool isLong = Helpers.Is64Type(resolveOperator.Type, Emitter.Resolver);
OperatorResolveResult orr = resolveOperator as OperatorResolveResult;
var leftResolverResult = Emitter.Resolver.ResolveNode(binaryOperatorExpression.Left);
var rightResolverResult = Emitter.Resolver.ResolveNode(binaryOperatorExpression.Right);
var charToString = -1;
string variable = null;
bool leftIsNull = BinaryOperatorExpression.Left is NullReferenceExpression;
bool rightIsNull = BinaryOperatorExpression.Right is NullReferenceExpression;
bool isUint = resolveOperator.Type.IsKnownType(KnownTypeCode.UInt16) ||
resolveOperator.Type.IsKnownType(KnownTypeCode.UInt32) ||
resolveOperator.Type.IsKnownType(KnownTypeCode.UInt64);
var isFloatResult = Helpers.IsFloatType(resolveOperator.Type, Emitter.Resolver);
var leftExpected = Emitter.Resolver.Resolver.GetExpectedType(binaryOperatorExpression.Left);
var rightExpected = Emitter.Resolver.Resolver.GetExpectedType(binaryOperatorExpression.Right);
var strictNullChecks = Emitter.AssemblyInfo.StrictNullChecks;
if (orr != null && orr.Type.IsKnownType(KnownTypeCode.String))
{
for (int i = 0; i < orr.Operands.Count; i++)
{
if (orr.Operands[i] is ConversionResolveResult crr && crr.Input.Type.IsKnownType(KnownTypeCode.Char))
{
charToString = i;
}
}
}
if (resolveOperator is ConstantResolveResult)
{
WriteScript(((ConstantResolveResult)resolveOperator).ConstantValue);
return;
}
var resultIsString = expectedType.IsKnownType(KnownTypeCode.String) || resolveOperator.Type.IsKnownType(KnownTypeCode.String);
var isStringConcat = resultIsString && binaryOperatorExpression.Operator == BinaryOperatorType.Add;
var toStringForLeft = false;
var toStringForRight = false;
var parentBinary = binaryOperatorExpression.Parent as BinaryOperatorExpression;
bool parentIsString = resultIsString && parentBinary != null && parentBinary.Operator == BinaryOperatorType.Add;
if (parentIsString)
{
var parentResolveOperator = Emitter.Resolver.ResolveNode(binaryOperatorExpression.Parent) as OperatorResolveResult;
if (parentResolveOperator != null && parentResolveOperator.UserDefinedOperatorMethod != null || IsOperatorSimple(parentBinary, Emitter))
{
parentIsString = false;
}
}
bool isSimpleConcat = isStringConcat && IsOperatorSimple(binaryOperatorExpression, Emitter);
if (charToString == -1 && isStringConcat && !leftResolverResult.Type.IsKnownType(KnownTypeCode.String))
{
toStringForLeft = true;
}
if (charToString == -1 && isStringConcat && !rightResolverResult.Type.IsKnownType(KnownTypeCode.String))
{
toStringForRight = true;
}
if (!isStringConcat && (Helpers.IsDecimalType(leftResolverResult.Type, Emitter.Resolver) || Helpers.IsDecimalType(rightResolverResult.Type, Emitter.Resolver)))
{
isDecimal = true;
isDecimalExpected = true;
}
if (isDecimal && isDecimalExpected && binaryOperatorExpression.Operator != BinaryOperatorType.NullCoalescing)
{
HandleDecimal(resolveOperator);
return;
}
var isLeftLong = Helpers.Is64Type(leftExpected, Emitter.Resolver);
var isRightLong = Helpers.Is64Type(rightExpected, Emitter.Resolver);
if (!isLeftLong && !isRightLong)
{
if (leftExpected.Kind == TypeKind.Enum && Helpers.Is64Type(leftExpected.GetDefinition().EnumUnderlyingType, Emitter.Resolver))
{
isLeftLong = true;
}
if (rightExpected.Kind == TypeKind.Enum && Helpers.Is64Type(rightExpected.GetDefinition().EnumUnderlyingType, Emitter.Resolver))
{
isRightLong = true;
}
}
if (!(resultIsString && binaryOperatorExpression.Operator == BinaryOperatorType.Add) && (isLeftLong || isRightLong))
{
isLong = true;
isLongExpected = true;
}
if (isLong && isLongExpected && binaryOperatorExpression.Operator != BinaryOperatorType.NullCoalescing)
{
if (!isFloatResult || binaryOperatorExpression.Operator == BinaryOperatorType.Divide && isLeftLong)
{
HandleLong(resolveOperator, isUint);
return;
}
}
var delegateOperator = false;
if (ResolveOperator(binaryOperatorExpression, orr))
{
return;
}
if (binaryOperatorExpression.Operator == BinaryOperatorType.Equality || binaryOperatorExpression.Operator == BinaryOperatorType.InEquality)
{
if (leftIsNull || rightIsNull)
{
WritePart(binaryOperatorExpression.Left, toStringForLeft, leftResolverResult);
if (binaryOperatorExpression.Operator == BinaryOperatorType.Equality)
{
Write(strictNullChecks ? " === " : " == ");
}
else
{
Write(strictNullChecks ? " !== " : " != ");
}
WritePart(binaryOperatorExpression.Right, toStringForRight, rightResolverResult);
return;
}
}
var insideOverflowContext = InsideOverflowContext(Emitter, binaryOperatorExpression);
if (binaryOperatorExpression.Operator == BinaryOperatorType.Divide && Emitter.Rules.Integer == IntegerRule.Managed &&
!(Emitter.IsJavaScriptOverflowMode && !insideOverflowContext) &&
(
(Helpers.IsIntegerType(leftResolverResult.Type, Emitter.Resolver) &&
Helpers.IsIntegerType(rightResolverResult.Type, Emitter.Resolver)) ||
(Helpers.IsIntegerType(Emitter.Resolver.Resolver.GetExpectedType(binaryOperatorExpression.Left), Emitter.Resolver) &&
Helpers.IsIntegerType(Emitter.Resolver.Resolver.GetExpectedType(binaryOperatorExpression.Right), Emitter.Resolver))
))
{
Write(JS.Types.H5_INT + "." + JS.Funcs.Math.DIV + "(");
WritePart(binaryOperatorExpression.Left, toStringForLeft, leftResolverResult);
Write(", ");
WritePart(binaryOperatorExpression.Right, toStringForRight, rightResolverResult);
Write(")");
return;
}
if (binaryOperatorExpression.Operator == BinaryOperatorType.Multiply && Emitter.Rules.Integer == IntegerRule.Managed &&
!(Emitter.IsJavaScriptOverflowMode && !insideOverflowContext) &&
(
(Helpers.IsInteger32Type(leftResolverResult.Type, Emitter.Resolver) &&
Helpers.IsInteger32Type(rightResolverResult.Type, Emitter.Resolver) &&
Helpers.IsInteger32Type(resolveOperator.Type, Emitter.Resolver)) ||
(Helpers.IsInteger32Type(Emitter.Resolver.Resolver.GetExpectedType(binaryOperatorExpression.Left), Emitter.Resolver) &&
Helpers.IsInteger32Type(Emitter.Resolver.Resolver.GetExpectedType(binaryOperatorExpression.Right), Emitter.Resolver) &&
Helpers.IsInteger32Type(resolveOperator.Type, Emitter.Resolver))
))
{
isUint = NullableType.GetUnderlyingType(resolveOperator.Type).IsKnownType(KnownTypeCode.UInt32);
Write(JS.Types.H5_INT + "." + (isUint ? JS.Funcs.Math.UMUL : JS.Funcs.Math.MUL) + "(");
WritePart(binaryOperatorExpression.Left, toStringForLeft, leftResolverResult);
Write(", ");
WritePart(binaryOperatorExpression.Right, toStringForRight, rightResolverResult);
if (IsInCheckedContext(Emitter, BinaryOperatorExpression))
{
Write(", 1");
}
Write(")");
return;
}
if (binaryOperatorExpression.Operator == BinaryOperatorType.Add ||
binaryOperatorExpression.Operator == BinaryOperatorType.Subtract)
{
var add = binaryOperatorExpression.Operator == BinaryOperatorType.Add;
if (expectedType.Kind == TypeKind.Delegate || Emitter.Validator.IsDelegateOrLambda(leftResolverResult) && Emitter.Validator.IsDelegateOrLambda(rightResolverResult))
{
delegateOperator = true;
Write(add ? JS.Funcs.H5_COMBINE : JS.Funcs.H5_REMOVE);
WriteOpenParentheses();
}
}
NullStringCheck = isStringConcat && !parentIsString && isSimpleConcat;
if (isStringConcat && !parentIsString && !isSimpleConcat)
{
Write(JS.Types.System.String.CONCAT);
WriteOpenParentheses();
}
bool nullable = orr != null && orr.IsLiftedOperator;
bool isCoalescing = (Emitter.AssemblyInfo.StrictNullChecks ||
NullableType.IsNullable(leftResolverResult.Type) ||
leftResolverResult.Type.IsKnownType(KnownTypeCode.String) ||
leftResolverResult.Type.IsKnownType(KnownTypeCode.Object)
) && binaryOperatorExpression.Operator == BinaryOperatorType.NullCoalescing;
string root = JS.Types.SYSTEM_NULLABLE + ".";
bool special = nullable;
bool rootSpecial = nullable;
bool isBool = NullableType.IsNullable(resolveOperator.Type) ? NullableType.GetUnderlyingType(resolveOperator.Type).IsKnownType(KnownTypeCode.Boolean) : resolveOperator.Type.IsKnownType(KnownTypeCode.Boolean);
bool toBool = isBool && !rootSpecial && !delegateOperator && (binaryOperatorExpression.Operator == BinaryOperatorType.BitwiseAnd || binaryOperatorExpression.Operator == BinaryOperatorType.BitwiseOr);
bool isRefEquals = !isCoalescing && !strictNullChecks &&
(binaryOperatorExpression.Operator == BinaryOperatorType.InEquality || binaryOperatorExpression.Operator == BinaryOperatorType.Equality) &&
leftExpected.IsReferenceType.HasValue && leftExpected.IsReferenceType.Value &&
rightExpected.IsReferenceType.HasValue && rightExpected.IsReferenceType.Value;
if (rootSpecial)
{
Write(root);
}
else if (!isRefEquals)
{
if (isCoalescing)
{
Write("(");
variable = GetTempVarName();
Write(variable);
Write(" = ");
}
else if (charToString == 0)
{
Write(JS.Funcs.STRING_FROMCHARCODE + "(");
}
if (toBool)
{
Write("!!(");
}
WritePart(binaryOperatorExpression.Left, toStringForLeft, leftResolverResult, isCoalescing);
if (isCoalescing)
{
Write(", ");
Write(variable);
Write(strictNullChecks ? " !== null" : " != null");
Write(" ? ");
expressionMap.Add(binaryOperatorExpression.Left, variable);
//this.Write(variable);
binaryOperatorExpression.Left.AcceptVisitor(Emitter);
expressionMap.Remove(binaryOperatorExpression.Left);
}
else if (charToString == 0)
{
Write(")");
}
}
if (isRefEquals)
{
if (binaryOperatorExpression.Operator == BinaryOperatorType.InEquality)
{
Write("!");
}
Write(JS.Funcs.H5_REFERENCEEQUALS);
special = true;
}
if (!delegateOperator && (!isStringConcat || isSimpleConcat))
{
if (!special)
{
WriteSpace();
}
switch (binaryOperatorExpression.Operator)
{
case BinaryOperatorType.Add:
Write(rootSpecial ? JS.Funcs.Math.ADD : "+");
break;
case BinaryOperatorType.BitwiseAnd:
if (isBool)
{
Write(rootSpecial ? JS.Funcs.Math.AND : "&");
}
else
{
Write(rootSpecial ? JS.Funcs.Math.BAND : "&");
}
break;
case BinaryOperatorType.BitwiseOr:
if (isBool)
{
Write(rootSpecial ? JS.Funcs.Math.OR : "|");
}
else
{
Write(rootSpecial ? JS.Funcs.Math.BOR : "|");
}
break;
case BinaryOperatorType.ConditionalAnd:
Write(rootSpecial ? JS.Funcs.Math.AND : "&&");
break;
case BinaryOperatorType.NullCoalescing:
Write(isCoalescing ? ":" : "||");
break;
case BinaryOperatorType.ConditionalOr:
Write(rootSpecial ? JS.Funcs.Math.OR : "||");
break;
case BinaryOperatorType.Divide:
Write(rootSpecial ? JS.Funcs.Math.DIV : "/");
break;
case BinaryOperatorType.Equality:
if (!isRefEquals)
{
Write(rootSpecial ? "eq" : "===");
}
break;
case BinaryOperatorType.ExclusiveOr:
Write(rootSpecial ? JS.Funcs.Math.XOR : (isBool ? "!=" : "^"));
break;
case BinaryOperatorType.GreaterThan:
Write(rootSpecial ? JS.Funcs.Math.GT : ">");
break;
case BinaryOperatorType.GreaterThanOrEqual:
Write(rootSpecial ? JS.Funcs.Math.GTE : ">=");
break;
case BinaryOperatorType.InEquality:
if (!isRefEquals)
{
Write(rootSpecial ? "neq" : "!==");
}
break;
case BinaryOperatorType.LessThan:
Write(rootSpecial ? JS.Funcs.Math.LT : "<");
break;
case BinaryOperatorType.LessThanOrEqual:
Write(rootSpecial ? JS.Funcs.Math.LTE : "<=");
break;
case BinaryOperatorType.Modulus:
Write(rootSpecial ? JS.Funcs.Math.MOD : "%");
break;
case BinaryOperatorType.Multiply:
Write(rootSpecial ? JS.Funcs.Math.MUL : "*");
break;
case BinaryOperatorType.ShiftLeft:
Write(rootSpecial ? JS.Funcs.Math.SL : "<<");
break;
case BinaryOperatorType.ShiftRight:
if (isUint)
{
Write(rootSpecial ? JS.Funcs.Math.SRR : ">>>");
}
else
{
Write(rootSpecial ? JS.Funcs.Math.SR : ">>");
}
break;
case BinaryOperatorType.Subtract:
Write(rootSpecial ? JS.Funcs.Math.SUB : "-");
break;
default:
throw new EmitterException(binaryOperatorExpression, "Unsupported binary operator: " + binaryOperatorExpression.Operator.ToString());
}
}
else
{
WriteComma();
}
if (special)
{
WriteOpenParentheses();
if (charToString == 0)
{
Write(JS.Funcs.STRING_FROMCHARCODE + "(");
}
WritePart(binaryOperatorExpression.Left, toStringForLeft, leftResolverResult);
if (charToString == 0)
{
Write(")");
}
WriteComma();
}
else if (!delegateOperator && (!isStringConcat || isSimpleConcat))
{
WriteSpace();
}
if (charToString == 1)
{
Write(JS.Funcs.STRING_FROMCHARCODE + "(");
}
WritePart(binaryOperatorExpression.Right, toStringForRight, rightResolverResult);
if (toBool)
{
WriteCloseParentheses();
}
if (charToString == 1 || isCoalescing)
{
WriteCloseParentheses();
}
if (delegateOperator || special || isStringConcat && !parentIsString && !isSimpleConcat)
{
WriteCloseParentheses();
}
}
protected void VisitAssignmentExpression()
{
AssignmentExpression assignmentExpression = this.AssignmentExpression;
var oldAssigment = this.Emitter.IsAssignment;
var oldAssigmentType = this.Emitter.AssignmentType;
string variable = null;
bool needReturnValue = !(assignmentExpression.Parent is ExpressionStatement);
if (needReturnValue && assignmentExpression.Parent is LambdaExpression)
{
var lambdarr = this.Emitter.Resolver.ResolveNode(assignmentExpression.Parent, this.Emitter) as LambdaResolveResult;
if (lambdarr != null && lambdarr.ReturnType.Kind == TypeKind.Void)
{
needReturnValue = false;
}
}
var delegateAssigment = false;
bool isEvent = false;
var initCount = this.Emitter.Writers.Count;
var asyncExpressionHandling = this.Emitter.AsyncExpressionHandling;
this.WriteAwaiters(assignmentExpression.Left);
this.WriteAwaiters(assignmentExpression.Right);
var leftResolverResult = this.Emitter.Resolver.ResolveNode(assignmentExpression.Left, this.Emitter);
var rightResolverResult = this.Emitter.Resolver.ResolveNode(assignmentExpression.Right, this.Emitter);
var rr = this.Emitter.Resolver.ResolveNode(assignmentExpression, this.Emitter);
var orr = rr as OperatorResolveResult;
bool isDecimal = Helpers.IsDecimalType(rr.Type, this.Emitter.Resolver);
bool isLong = Helpers.Is64Type(rr.Type, this.Emitter.Resolver);
var expectedType = this.Emitter.Resolver.Resolver.GetExpectedType(assignmentExpression);
bool isDecimalExpected = Helpers.IsDecimalType(expectedType, this.Emitter.Resolver);
bool isLongExpected = Helpers.Is64Type(expectedType, this.Emitter.Resolver);
bool isUserOperator = this.IsUserOperator(orr);
var rrType = rr.Type;
if (rrType.Kind == TypeKind.Enum)
{
rrType = rrType.GetDefinition().EnumUnderlyingType;
}
bool isUint = rrType.IsKnownType(KnownTypeCode.UInt16) ||
rrType.IsKnownType(KnownTypeCode.UInt32) ||
rrType.IsKnownType(KnownTypeCode.UInt64);
if (!isLong && rr.Type.Kind == TypeKind.Enum && Helpers.Is64Type(rr.Type.GetDefinition().EnumUnderlyingType, this.Emitter.Resolver))
{
isLong = true;
}
if (!isLongExpected && expectedType.Kind == TypeKind.Enum && Helpers.Is64Type(expectedType.GetDefinition().EnumUnderlyingType, this.Emitter.Resolver))
{
isLongExpected = true;
}
var charToString = -1;
if (orr != null && orr.Type.IsKnownType(KnownTypeCode.String))
{
for (int i = 0; i < orr.Operands.Count; i++)
{
var crr = orr.Operands[i] as ConversionResolveResult;
if (crr != null && crr.Input.Type.IsKnownType(KnownTypeCode.Char))
{
charToString = i;
}
}
}
var memberTargetrr = leftResolverResult as MemberResolveResult;
bool isField = (memberTargetrr != null && memberTargetrr.Member is IField &&
(memberTargetrr.TargetResult is ThisResolveResult ||
memberTargetrr.TargetResult is LocalResolveResult)) || leftResolverResult is ThisResolveResult || leftResolverResult is LocalResolveResult || leftResolverResult is ConstantResolveResult;
var rightMemberTargetrr = rightResolverResult as MemberResolveResult;
bool isRightSimple = (rightMemberTargetrr != null && rightMemberTargetrr.Member is IField &&
(rightMemberTargetrr.TargetResult is ThisResolveResult ||
rightMemberTargetrr.TargetResult is LocalResolveResult)) || rightResolverResult is ThisResolveResult || rightResolverResult is LocalResolveResult || rightResolverResult is ConstantResolveResult;
var needTempVar = needReturnValue && (!isRightSimple && !isField || assignmentExpression.Operator != AssignmentOperatorType.Assign);
/*if (assignmentExpression.Operator == AssignmentOperatorType.Any)
* {
* needTempVar = false;
* }*/
if (needReturnValue)
{
if (needTempVar)
{
variable = this.GetTempVarName();
this.Write("(" + variable + " = ");
var oldValue1 = this.Emitter.ReplaceAwaiterByVar;
this.Emitter.ReplaceAwaiterByVar = true;
assignmentExpression.Right.AcceptVisitor(this.Emitter);
this.Emitter.ReplaceAwaiterByVar = oldValue1;
this.Write(", ");
}
else
{
this.Write("(");
}
}
if (assignmentExpression.Operator == AssignmentOperatorType.Divide && this.Emitter.Rules.Integer == IntegerRule.Managed &&
!(this.Emitter.IsJavaScriptOverflowMode && !ConversionBlock.InsideOverflowContext(this.Emitter, assignmentExpression)) &&
!isLong && !isLongExpected &&
(
(Helpers.IsIntegerType(leftResolverResult.Type, this.Emitter.Resolver) &&
Helpers.IsIntegerType(rightResolverResult.Type, this.Emitter.Resolver)) ||
(Helpers.IsIntegerType(this.Emitter.Resolver.Resolver.GetExpectedType(assignmentExpression.Left), this.Emitter.Resolver) &&
Helpers.IsIntegerType(this.Emitter.Resolver.Resolver.GetExpectedType(assignmentExpression.Right), this.Emitter.Resolver))
))
{
this.Emitter.IsAssignment = true;
this.Emitter.AssignmentType = AssignmentOperatorType.Assign;
var oldValue1 = this.Emitter.ReplaceAwaiterByVar;
this.Emitter.ReplaceAwaiterByVar = true;
this.AcceptLeftExpression(assignmentExpression.Left, memberTargetrr);
if (this.Emitter.Writers.Count == initCount)
{
this.Write(" = ");
}
this.Emitter.ReplaceAwaiterByVar = oldValue1;
this.Emitter.AssignmentType = oldAssigmentType;
this.Emitter.IsAssignment = oldAssigment;
this.Write(JS.Types.BRIDGE_INT + "." + JS.Funcs.Math.DIV + "(");
assignmentExpression.Left.AcceptVisitor(this.Emitter);
this.Write(", ");
oldValue1 = this.Emitter.ReplaceAwaiterByVar;
this.Emitter.ReplaceAwaiterByVar = true;
assignmentExpression.Right.AcceptVisitor(this.Emitter);
this.Write(")");
this.Emitter.ReplaceAwaiterByVar = oldValue1;
this.Emitter.AsyncExpressionHandling = asyncExpressionHandling;
if (this.Emitter.Writers.Count > initCount)
{
this.PopWriter();
}
if (needReturnValue && !isField)
{
if (needTempVar)
{
this.Write(", " + variable);
}
else
{
this.Write(", ");
this.Emitter.IsAssignment = false;
assignmentExpression.Right.AcceptVisitor(this.Emitter);
this.Emitter.IsAssignment = oldAssigment;
}
}
if (needReturnValue)
{
this.Write(")");
}
return;
}
if (assignmentExpression.Operator == AssignmentOperatorType.Multiply && this.Emitter.Rules.Integer == IntegerRule.Managed &&
!(this.Emitter.IsJavaScriptOverflowMode && !ConversionBlock.InsideOverflowContext(this.Emitter, assignmentExpression)) &&
!isLong && !isLongExpected &&
(
(Helpers.IsInteger32Type(leftResolverResult.Type, this.Emitter.Resolver) &&
Helpers.IsInteger32Type(rightResolverResult.Type, this.Emitter.Resolver) &&
Helpers.IsInteger32Type(rr.Type, this.Emitter.Resolver)) ||
(Helpers.IsInteger32Type(this.Emitter.Resolver.Resolver.GetExpectedType(assignmentExpression.Left), this.Emitter.Resolver) &&
Helpers.IsInteger32Type(this.Emitter.Resolver.Resolver.GetExpectedType(assignmentExpression.Right), this.Emitter.Resolver) &&
Helpers.IsInteger32Type(rr.Type, this.Emitter.Resolver))
))
{
this.Emitter.IsAssignment = true;
this.Emitter.AssignmentType = AssignmentOperatorType.Assign;
var oldValue1 = this.Emitter.ReplaceAwaiterByVar;
this.Emitter.ReplaceAwaiterByVar = true;
this.AcceptLeftExpression(assignmentExpression.Left, memberTargetrr);
if (this.Emitter.Writers.Count == initCount)
{
this.Write(" = ");
}
this.Emitter.ReplaceAwaiterByVar = oldValue1;
this.Emitter.AssignmentType = oldAssigmentType;
this.Emitter.IsAssignment = oldAssigment;
isUint = NullableType.GetUnderlyingType(rr.Type).IsKnownType(KnownTypeCode.UInt32);
this.Write(JS.Types.BRIDGE_INT + "." + (isUint ? JS.Funcs.Math.UMUL : JS.Funcs.Math.MUL) + "(");
assignmentExpression.Left.AcceptVisitor(this.Emitter);
this.Write(", ");
oldValue1 = this.Emitter.ReplaceAwaiterByVar;
this.Emitter.ReplaceAwaiterByVar = true;
assignmentExpression.Right.AcceptVisitor(this.Emitter);
if (ConversionBlock.IsInCheckedContext(this.Emitter, assignmentExpression))
{
this.Write(", 1");
}
this.Write(")");
this.Emitter.ReplaceAwaiterByVar = oldValue1;
this.Emitter.AsyncExpressionHandling = asyncExpressionHandling;
if (this.Emitter.Writers.Count > initCount)
{
this.PopWriter();
}
if (needReturnValue && !isField)
{
if (needTempVar)
{
this.Write(", " + variable);
}
else
{
this.Write(", ");
this.Emitter.IsAssignment = false;
assignmentExpression.Right.AcceptVisitor(this.Emitter);
this.Emitter.IsAssignment = oldAssigment;
}
}
if (needReturnValue)
{
this.Write(")");
}
return;
}
bool templateDelegateAssigment = false;
if (assignmentExpression.Operator == AssignmentOperatorType.Add ||
assignmentExpression.Operator == AssignmentOperatorType.Subtract)
{
var add = assignmentExpression.Operator == AssignmentOperatorType.Add;
if (this.Emitter.Validator.IsDelegateOrLambda(leftResolverResult))
{
delegateAssigment = true;
var leftMemberResolveResult = leftResolverResult as MemberResolveResult;
if (leftMemberResolveResult != null)
{
isEvent = leftMemberResolveResult.Member is IEvent;
this.Emitter.IsAssignment = true;
this.Emitter.AssignmentType = assignmentExpression.Operator;
templateDelegateAssigment = !string.IsNullOrWhiteSpace(this.Emitter.GetInline(leftMemberResolveResult.Member));
this.Emitter.IsAssignment = false;
}
if (!isEvent)
{
this.Emitter.IsAssignment = true;
this.Emitter.AssignmentType = AssignmentOperatorType.Assign;
this.AcceptLeftExpression(assignmentExpression.Left, memberTargetrr);
this.Emitter.IsAssignment = false;
if (this.Emitter.Writers.Count == initCount)
{
this.Write(" = ");
}
this.Write(add ? JS.Funcs.BRIDGE_COMBINE : JS.Funcs.BRIDGE_REMOVE);
this.WriteOpenParentheses();
}
}
}
bool nullable = orr != null && orr.IsLiftedOperator;
string root = JS.Types.SYSTEM_NULLABLE + ".";
bool special = nullable;
this.Emitter.IsAssignment = true;
this.Emitter.AssignmentType = assignmentExpression.Operator;
var oldValue = this.Emitter.ReplaceAwaiterByVar;
this.Emitter.ReplaceAwaiterByVar = true;
bool thisAssignment = leftResolverResult is ThisResolveResult;
if (!thisAssignment)
{
if (special || (isDecimal && isDecimalExpected) || (isLong && isLongExpected) || isUserOperator)
{
this.Emitter.AssignmentType = AssignmentOperatorType.Assign;
}
if (delegateAssigment && !isEvent)
{
this.Emitter.IsAssignment = false;
}
this.AcceptLeftExpression(assignmentExpression.Left, memberTargetrr);
if (delegateAssigment)
{
this.Emitter.IsAssignment = true;
}
}
else
{
this.Write("(");
}
this.Emitter.ReplaceAwaiterByVar = oldValue;
this.Emitter.AssignmentType = oldAssigmentType;
this.Emitter.IsAssignment = oldAssigment;
if (this.Emitter.Writers.Count == initCount && !delegateAssigment && !thisAssignment)
{
this.WriteSpace();
}
if (isDecimal && isDecimalExpected)
{
if (this.Emitter.Writers.Count == initCount)
{
this.Write("= ");
}
oldValue = this.Emitter.ReplaceAwaiterByVar;
this.Emitter.ReplaceAwaiterByVar = true;
this.HandleDecimal(rr, variable);
if (this.Emitter.Writers.Count > initCount)
{
this.PopWriter();
}
if (needTempVar)
{
this.Write(", " + variable + ")");
}
else if (needReturnValue)
{
if (!isField)
{
this.Write(", ");
this.Emitter.IsAssignment = false;
assignmentExpression.Right.AcceptVisitor(this.Emitter);
this.Emitter.IsAssignment = oldAssigment;
}
this.Write(")");
}
this.Emitter.ReplaceAwaiterByVar = oldValue;
return;
}
if (isLong && isLongExpected)
{
if (this.Emitter.Writers.Count == initCount)
{
this.Write("= ");
}
oldValue = this.Emitter.ReplaceAwaiterByVar;
this.Emitter.ReplaceAwaiterByVar = true;
this.HandleLong(rr, variable, isUint);
if (this.Emitter.Writers.Count > initCount)
{
this.PopWriter();
}
if (needTempVar)
{
this.Write(", " + variable + ")");
}
else if (needReturnValue)
{
if (!isField)
{
this.Write(", ");
this.Emitter.IsAssignment = false;
assignmentExpression.Right.AcceptVisitor(this.Emitter);
this.Emitter.IsAssignment = oldAssigment;
}
this.Write(")");
}
this.Emitter.ReplaceAwaiterByVar = oldValue;
return;
}
if (this.ResolveOperator(assignmentExpression, orr, initCount, thisAssignment))
{
if (thisAssignment)
{
this.Write(")." + JS.Funcs.CLONE + "(this)");
}
else if (needReturnValue)
{
this.Write(")");
}
return;
}
bool isBool = NullableType.IsNullable(rr.Type) ? NullableType.GetUnderlyingType(rr.Type).IsKnownType(KnownTypeCode.Boolean) : rr.Type.IsKnownType(KnownTypeCode.Boolean);
if (!delegateAssigment)
{
if (!special)
{
switch (assignmentExpression.Operator)
{
case AssignmentOperatorType.Assign:
break;
case AssignmentOperatorType.Add:
this.Write("+");
break;
case AssignmentOperatorType.BitwiseAnd:
if (!isBool)
{
this.Write("&");
}
break;
case AssignmentOperatorType.BitwiseOr:
if (!isBool)
{
this.Write("|");
}
break;
case AssignmentOperatorType.Divide:
this.Write("/");
break;
case AssignmentOperatorType.ExclusiveOr:
this.Write("^");
break;
case AssignmentOperatorType.Modulus:
this.Write("%");
break;
case AssignmentOperatorType.Multiply:
this.Write("*");
break;
case AssignmentOperatorType.ShiftLeft:
this.Write("<<");
break;
case AssignmentOperatorType.ShiftRight:
this.Write(isUint ? ">>>" : ">>");
break;
case AssignmentOperatorType.Subtract:
this.Write("-");
break;
default:
throw new EmitterException(assignmentExpression,
"Unsupported assignment operator: " + assignmentExpression.Operator.ToString());
}
}
if (special)
{
if (this.Emitter.Writers.Count == initCount)
{
this.Write("= ");
}
this.Write(root);
switch (assignmentExpression.Operator)
{
case AssignmentOperatorType.Assign:
break;
case AssignmentOperatorType.Add:
this.Write(JS.Funcs.Math.ADD);
break;
case AssignmentOperatorType.BitwiseAnd:
this.Write(isBool ? JS.Funcs.Math.AND : JS.Funcs.Math.BAND);
break;
case AssignmentOperatorType.BitwiseOr:
this.Write(isBool ? JS.Funcs.Math.OR : JS.Funcs.Math.BOR);
break;
case AssignmentOperatorType.Divide:
this.Write(JS.Funcs.Math.DIV);
break;
case AssignmentOperatorType.ExclusiveOr:
this.Write(JS.Funcs.Math.XOR);
break;
case AssignmentOperatorType.Modulus:
this.Write(JS.Funcs.Math.MOD);
break;
case AssignmentOperatorType.Multiply:
this.Write(JS.Funcs.Math.MUL);
break;
case AssignmentOperatorType.ShiftLeft:
this.Write(JS.Funcs.Math.SL);
break;
case AssignmentOperatorType.ShiftRight:
this.Write(isUint ? JS.Funcs.Math.SRR : JS.Funcs.Math.SR);
break;
case AssignmentOperatorType.Subtract:
this.Write(JS.Funcs.Math.SUB);
break;
default:
throw new EmitterException(assignmentExpression,
"Unsupported assignment operator: " + assignmentExpression.Operator.ToString());
}
this.WriteOpenParentheses();
assignmentExpression.Left.AcceptVisitor(this.Emitter);
this.Write(", ");
}
if (this.Emitter.Writers.Count == initCount && !thisAssignment && !special)
{
this.Write("= ");
}
}
else if (!isEvent)
{
this.WriteComma();
}
if (!special && isBool && (assignmentExpression.Operator == AssignmentOperatorType.BitwiseAnd || assignmentExpression.Operator == AssignmentOperatorType.BitwiseOr))
{
this.Write("!!(");
assignmentExpression.Left.AcceptVisitor(this.Emitter);
this.Write(assignmentExpression.Operator == AssignmentOperatorType.BitwiseAnd ? " & " : " | ");
}
oldValue = this.Emitter.ReplaceAwaiterByVar;
this.Emitter.ReplaceAwaiterByVar = true;
if (charToString == 1)
{
this.Write(JS.Funcs.STRING_FROMCHARCODE + "(");
}
if (needTempVar)
{
int pos = this.Emitter.Output.Length;
this.Write(variable);
Helpers.CheckValueTypeClone(rr, assignmentExpression.Right, this, pos);
}
else
{
var wrap = assignmentExpression.Operator != AssignmentOperatorType.Assign &&
this.Emitter.Writers.Count > initCount &&
!AssigmentExpressionHelper.CheckIsRightAssigmentExpression(assignmentExpression);
if (wrap)
{
this.WriteOpenParentheses();
}
assignmentExpression.Right.AcceptVisitor(this.Emitter);
if (wrap)
{
this.WriteCloseParentheses();
}
}
if (!special && isBool &&
(assignmentExpression.Operator == AssignmentOperatorType.BitwiseAnd ||
assignmentExpression.Operator == AssignmentOperatorType.BitwiseOr))
{
this.WriteCloseParentheses();
}
if (charToString == 1)
{
this.WriteCloseParentheses();
}
if (special)
{
this.WriteCloseParentheses();
}
if (thisAssignment)
{
this.Write(")." + JS.Funcs.CLONE + "(this)");
}
this.Emitter.ReplaceAwaiterByVar = oldValue;
this.Emitter.AsyncExpressionHandling = asyncExpressionHandling;
if (this.Emitter.Writers.Count > initCount)
{
var writerCount = this.Emitter.Writers.Count;
for (int i = initCount; i < writerCount; i++)
{
this.PopWriter();
}
}
if (delegateAssigment && !templateDelegateAssigment)
{
this.WriteCloseParentheses();
}
if (needTempVar)
{
this.Write(", " + variable + ")");
}
else if (needReturnValue)
{
if (!isField)
{
this.Write(", ");
this.Emitter.IsAssignment = false;
assignmentExpression.Right.AcceptVisitor(this.Emitter);
this.Emitter.IsAssignment = oldAssigment;
}
this.Write(")");
}
}
protected virtual string GetCastCode(Expression expression, AstType astType, out bool isInline)
{
var resolveResult = this.Emitter.Resolver.ResolveNode(astType, this.Emitter) as TypeResolveResult;
var exprResolveResult = this.Emitter.Resolver.ResolveNode(expression, this.Emitter);
string inline = null;
isInline = false;
var method = this.GetCastMethod(exprResolveResult.Type, resolveResult.Type, out inline);
if (method == null && (NullableType.IsNullable(exprResolveResult.Type) || NullableType.IsNullable(resolveResult.Type)))
{
method = this.GetCastMethod(NullableType.IsNullable(exprResolveResult.Type) ? NullableType.GetUnderlyingType(exprResolveResult.Type) : exprResolveResult.Type,
NullableType.IsNullable(resolveResult.Type) ? NullableType.GetUnderlyingType(resolveResult.Type) : resolveResult.Type, out inline);
}
if (inline != null)
{
this.InlineMethod = method;
isInline = true;
return(inline);
}
if (resolveResult != null)
{
IEnumerable <IAttribute> attributes = null;
DefaultResolvedTypeDefinition type = resolveResult.Type as DefaultResolvedTypeDefinition;
if (type != null)
{
attributes = type.Attributes;
}
else
{
ParameterizedType paramType = resolveResult.Type as ParameterizedType;
if (paramType != null)
{
attributes = paramType.GetDefinition().Attributes;
}
}
if (attributes != null)
{
var attribute = this.Emitter.GetAttribute(attributes, Translator.Bridge_ASSEMBLY + ".CastAttribute");
if (attribute != null)
{
return(attribute.PositionalArguments[0].ConstantValue.ToString());
}
}
}
return(null);
}
/// <summary>
/// Make lower bound inference from U to V.
/// C# 4.0 spec: §7.5.2.9 Lower-bound inferences
/// </summary>
void MakeLowerBoundInference(IType U, IType V)
{
Log.WriteLine(" MakeLowerBoundInference from " + U + " to " + V);
if (U.Nullability == V.Nullability)
{
U = U.WithoutNullability();
V = V.WithoutNullability();
}
// If V is one of the unfixed Xi then U is added to the set of bounds for Xi.
TP tp = GetTPForType(V);
if (tp != null && tp.IsFixed == false)
{
Log.WriteLine(" Add lower bound '" + U + "' to " + tp);
tp.LowerBounds.Add(U);
return;
}
// Handle nullable covariance:
if (NullableType.IsNullable(U) && NullableType.IsNullable(V))
{
MakeLowerBoundInference(NullableType.GetUnderlyingType(U), NullableType.GetUnderlyingType(V));
return;
}
// Handle by reference types:
ByReferenceType brU = U as ByReferenceType;
ByReferenceType brV = V as ByReferenceType;
if (brU != null && brV != null)
{
MakeExactInference(brU.ElementType, brV.ElementType);
return;
}
// Handle array types:
ArrayType arrU = U as ArrayType;
ArrayType arrV = V as ArrayType;
ParameterizedType pV = V.TupleUnderlyingTypeOrSelf() as ParameterizedType;
if (arrU != null && arrV != null && arrU.Dimensions == arrV.Dimensions)
{
MakeLowerBoundInference(arrU.ElementType, arrV.ElementType);
return;
}
else if (arrU != null && IsGenericInterfaceImplementedByArray(pV) && arrU.Dimensions == 1)
{
MakeLowerBoundInference(arrU.ElementType, pV.GetTypeArgument(0));
return;
}
// Handle parameterized types:
if (pV != null)
{
ParameterizedType uniqueBaseType = null;
foreach (IType baseU in U.GetAllBaseTypes())
{
ParameterizedType pU = baseU.TupleUnderlyingTypeOrSelf() as ParameterizedType;
if (pU != null && object.Equals(pU.GenericType, pV.GenericType) && pU.TypeParameterCount == pV.TypeParameterCount)
{
if (uniqueBaseType == null)
{
uniqueBaseType = pU;
}
else
{
return; // cannot make an inference because it's not unique
}
}
}
Log.Indent();
if (uniqueBaseType != null)
{
for (int i = 0; i < uniqueBaseType.TypeParameterCount; i++)
{
IType Ui = uniqueBaseType.GetTypeArgument(i);
IType Vi = pV.GetTypeArgument(i);
if (Ui.IsReferenceType == true)
{
// look for variance
ITypeParameter Xi = pV.TypeParameters[i];
switch (Xi.Variance)
{
case VarianceModifier.Covariant:
MakeLowerBoundInference(Ui, Vi);
break;
case VarianceModifier.Contravariant:
MakeUpperBoundInference(Ui, Vi);
break;
default: // invariant
MakeExactInference(Ui, Vi);
break;
}
}
else
{
// not known to be a reference type
MakeExactInference(Ui, Vi);
}
}
}
Log.Unindent();
}
}
bool MatchDisposeCheck(ILVariable objVar, ILInstruction checkInst, bool isReference, bool usingNull, out int numObjVarLoadsInCheck)
{
numObjVarLoadsInCheck = 2;
CallVirt callVirt;
if (objVar.Type.IsKnownType(KnownTypeCode.NullableOfT))
{
if (checkInst.MatchIfInstruction(out var condition, out var disposeInst))
{
if (!NullableLiftingTransform.MatchHasValueCall(condition, objVar))
{
return(false);
}
if (!(disposeInst is Block disposeBlock) || disposeBlock.Instructions.Count != 1)
{
return(false);
}
callVirt = disposeBlock.Instructions[0] as CallVirt;
}
else if (checkInst.MatchNullableRewrap(out disposeInst))
{
callVirt = disposeInst as CallVirt;
}
else
{
return(false);
}
if (callVirt == null)
{
return(false);
}
if (callVirt.Method.FullName != "System.IDisposable.Dispose")
{
return(false);
}
if (callVirt.Method.Parameters.Count > 0)
{
return(false);
}
if (callVirt.Arguments.Count != 1)
{
return(false);
}
var firstArg = callVirt.Arguments.FirstOrDefault();
if (!(firstArg.MatchUnboxAny(out var innerArg1, out var unboxType) && unboxType.IsKnownType(KnownTypeCode.IDisposable)))
{
if (!firstArg.MatchAddressOf(out var innerArg2, out _))
{
return(false);
}
return(NullableLiftingTransform.MatchGetValueOrDefault(innerArg2, objVar) ||
(innerArg2 is NullableUnwrap unwrap &&
unwrap.Argument.MatchLdLoc(objVar)));
}
else
{
if (!(innerArg1.MatchBox(out firstArg, out var boxType) && boxType.IsKnownType(KnownTypeCode.NullableOfT) &&
NullableType.GetUnderlyingType(boxType).Equals(NullableType.GetUnderlyingType(objVar.Type))))
{
return(false);
}
return(firstArg.MatchLdLoc(objVar));
}
}
public static string ToTypeScriptName(IType type, IEmitter emitter, bool asDefinition = false, bool excludens = false, bool ignoreDependency = false, List <string> guard = null)
{
if (type.Kind == TypeKind.Delegate)
{
if (guard == null)
{
guard = new List <string>();
}
if (guard.Contains(type.FullName))
{
return("Function");
}
guard.Add(type.FullName);
var method = type.GetDelegateInvokeMethod();
StringBuilder sb = new StringBuilder();
sb.Append("{");
sb.Append("(");
var last = method.Parameters.LastOrDefault();
foreach (var p in method.Parameters)
{
var ptype = BridgeTypes.ToTypeScriptName(p.Type, emitter, guard: guard);
if (p.IsOut || p.IsRef)
{
ptype = "{v: " + ptype + "}";
}
sb.Append(p.Name + ": " + ptype);
if (p != last)
{
sb.Append(", ");
}
}
sb.Append(")");
sb.Append(": ");
sb.Append(BridgeTypes.ToTypeScriptName(method.ReturnType, emitter, guard: guard));
sb.Append("}");
guard.Remove(type.FullName);
return(sb.ToString());
}
var oname = ObjectLiteralSignature(type, emitter);
if (oname != null)
{
return(oname);
}
if (type.IsKnownType(KnownTypeCode.String))
{
return("string");
}
if (type.IsKnownType(KnownTypeCode.Boolean))
{
return("boolean");
}
if (type.IsKnownType(KnownTypeCode.Void))
{
return("void");
}
if (type.IsKnownType(KnownTypeCode.Array))
{
return("any[]");
}
if (type.IsKnownType(KnownTypeCode.Byte) ||
type.IsKnownType(KnownTypeCode.Char) ||
type.IsKnownType(KnownTypeCode.Double) ||
type.IsKnownType(KnownTypeCode.Int16) ||
type.IsKnownType(KnownTypeCode.Int32) ||
type.IsKnownType(KnownTypeCode.SByte) ||
type.IsKnownType(KnownTypeCode.Single) ||
type.IsKnownType(KnownTypeCode.UInt16) ||
type.IsKnownType(KnownTypeCode.UInt32))
{
return("number");
}
if (type.Kind == TypeKind.Array)
{
ICSharpCode.NRefactory.TypeSystem.ArrayType arrayType = (ICSharpCode.NRefactory.TypeSystem.ArrayType)type;
return(BridgeTypes.ToTypeScriptName(arrayType.ElementType, emitter, asDefinition, excludens, guard: guard) + "[]");
}
if (type.Kind == TypeKind.Dynamic || type.IsKnownType(KnownTypeCode.Object))
{
return("any");
}
if (type.Kind == TypeKind.Enum && type.DeclaringType != null && !excludens)
{
return("number");
}
if (NullableType.IsNullable(type))
{
return(BridgeTypes.ToTypeScriptName(NullableType.GetUnderlyingType(type), emitter, asDefinition, excludens, guard: guard));
}
BridgeType bridgeType = emitter.BridgeTypes.Get(type, true);
//string name = BridgeTypes.ConvertName(excludens ? type.Name : type.FullName);
var name = excludens ? "" : type.Namespace;
var hasTypeDef = bridgeType != null && bridgeType.TypeDefinition != null;
bool isNested = false;
if (hasTypeDef)
{
var typeDef = bridgeType.TypeDefinition;
if (typeDef.IsNested && !excludens)
{
//name = (string.IsNullOrEmpty(name) ? "" : (name + ".")) + BridgeTypes.GetParentNames(emitter, typeDef);
name = BridgeTypes.ToJsName(typeDef.DeclaringType, emitter, true, ignoreVirtual: true);
isNested = true;
}
name = (string.IsNullOrEmpty(name) ? "" : (name + ".")) + BridgeTypes.ConvertName(emitter.GetTypeName(bridgeType.Type.GetDefinition(), typeDef));
}
else
{
if (type.DeclaringType != null && !excludens)
{
//name = (string.IsNullOrEmpty(name) ? "" : (name + ".")) + BridgeTypes.GetParentNames(emitter, type);
name = BridgeTypes.ToJsName(type.DeclaringType, emitter, true, ignoreVirtual: true);
if (type.DeclaringType.TypeArguments.Count > 0)
{
name += Helpers.PrefixDollar(type.TypeArguments.Count);
}
isNested = true;
}
name = (string.IsNullOrEmpty(name) ? "" : (name + ".")) + BridgeTypes.ConvertName(type.Name);
}
bool isCustomName = false;
if (bridgeType != null)
{
if (!ignoreDependency && emitter.AssemblyInfo.OutputBy != OutputBy.Project &&
bridgeType.TypeInfo != null && bridgeType.TypeInfo.Namespace != emitter.TypeInfo.Namespace)
{
var info = BridgeTypes.GetNamespaceFilename(bridgeType.TypeInfo, emitter);
var ns = info.Item1;
var fileName = info.Item2;
if (!emitter.CurrentDependencies.Any(d => d.DependencyName == fileName))
{
emitter.CurrentDependencies.Add(new ModuleDependency()
{
DependencyName = fileName
});
}
}
name = BridgeTypes.GetCustomName(name, bridgeType, excludens, isNested, ref isCustomName, null);
}
if (!hasTypeDef && !isCustomName && type.TypeArguments.Count > 0)
{
name += Helpers.PrefixDollar(type.TypeArguments.Count);
}
if (isCustomName && excludens && name != null)
{
var idx = name.LastIndexOf('.');
if (idx > -1)
{
name = name.Substring(idx + 1);
}
}
if (!asDefinition && type.TypeArguments.Count > 0 && !Helpers.IsIgnoreGeneric(type, emitter, true))
{
StringBuilder sb = new StringBuilder(name);
bool needComma = false;
sb.Append("<");
foreach (var typeArg in type.TypeArguments)
{
if (needComma)
{
sb.Append(",");
}
needComma = true;
sb.Append(BridgeTypes.ToTypeScriptName(typeArg, emitter, asDefinition, excludens, guard: guard));
}
sb.Append(">");
name = sb.ToString();
}
return(name);
}
protected void VisitAssignmentExpression()
{
AssignmentExpression assignmentExpression = this.AssignmentExpression;
var oldAssigment = this.Emitter.IsAssignment;
var oldAssigmentType = this.Emitter.AssignmentType;
string variable = null;
bool needReturnValue = !(assignmentExpression.Parent is ExpressionStatement);
if (needReturnValue && assignmentExpression.Parent is LambdaExpression)
{
var lambdarr = this.Emitter.Resolver.ResolveNode(assignmentExpression.Parent, this.Emitter) as LambdaResolveResult;
if (lambdarr != null && lambdarr.ReturnType.Kind == TypeKind.Void)
{
needReturnValue = false;
}
}
var delegateAssigment = false;
bool isEvent = false;
var initCount = this.Emitter.Writers.Count;
var asyncExpressionHandling = this.Emitter.AsyncExpressionHandling;
this.WriteAwaiters(assignmentExpression.Left);
this.WriteAwaiters(assignmentExpression.Right);
var leftResolverResult = this.Emitter.Resolver.ResolveNode(assignmentExpression.Left, this.Emitter);
var rightResolverResult = this.Emitter.Resolver.ResolveNode(assignmentExpression.Right, this.Emitter);
var rr = this.Emitter.Resolver.ResolveNode(assignmentExpression, this.Emitter);
var orr = rr as OperatorResolveResult;
bool isDecimal = Helpers.IsDecimalType(rr.Type, this.Emitter.Resolver);
var expectedType = this.Emitter.Resolver.Resolver.GetExpectedType(assignmentExpression);
bool isDecimalExpected = Helpers.IsDecimalType(expectedType, this.Emitter.Resolver);
bool isUserOperator = this.IsUserOperator(orr);
var charToString = -1;
if (orr != null && orr.Type.IsKnownType(KnownTypeCode.String))
{
for (int i = 0; i < orr.Operands.Count; i++)
{
var crr = orr.Operands[i] as ConversionResolveResult;
if (crr != null && crr.Input.Type.IsKnownType(KnownTypeCode.Char))
{
charToString = i;
}
}
}
if (needReturnValue)
{
variable = this.GetTempVarName();
this.Write("(" + variable + " = ");
var oldValue1 = this.Emitter.ReplaceAwaiterByVar;
this.Emitter.ReplaceAwaiterByVar = true;
assignmentExpression.Right.AcceptVisitor(this.Emitter);
this.Emitter.ReplaceAwaiterByVar = oldValue1;
this.Write(", ");
}
if (assignmentExpression.Operator == AssignmentOperatorType.Divide &&
(
(Helpers.IsIntegerType(leftResolverResult.Type, this.Emitter.Resolver) &&
Helpers.IsIntegerType(rightResolverResult.Type, this.Emitter.Resolver)) ||
(Helpers.IsIntegerType(this.Emitter.Resolver.Resolver.GetExpectedType(assignmentExpression.Left), this.Emitter.Resolver) &&
Helpers.IsIntegerType(this.Emitter.Resolver.Resolver.GetExpectedType(assignmentExpression.Right), this.Emitter.Resolver))
))
{
this.Emitter.IsAssignment = true;
this.Emitter.AssignmentType = AssignmentOperatorType.Assign;
var oldValue1 = this.Emitter.ReplaceAwaiterByVar;
this.Emitter.ReplaceAwaiterByVar = true;
assignmentExpression.Left.AcceptVisitor(this.Emitter);
if (this.Emitter.Writers.Count == initCount)
{
this.Write(" = ");
}
this.Emitter.ReplaceAwaiterByVar = oldValue1;
this.Emitter.AssignmentType = oldAssigmentType;
this.Emitter.IsAssignment = oldAssigment;
this.Write("Bridge.Int.div(");
assignmentExpression.Left.AcceptVisitor(this.Emitter);
this.Write(", ");
oldValue1 = this.Emitter.ReplaceAwaiterByVar;
this.Emitter.ReplaceAwaiterByVar = true;
if (needReturnValue)
{
this.Write(variable);
}
else
{
assignmentExpression.Right.AcceptVisitor(this.Emitter);
}
this.Write(")");
this.Emitter.ReplaceAwaiterByVar = oldValue1;
this.Emitter.AsyncExpressionHandling = asyncExpressionHandling;
if (this.Emitter.Writers.Count > initCount)
{
this.PopWriter();
}
return;
}
if (assignmentExpression.Operator == AssignmentOperatorType.Add ||
assignmentExpression.Operator == AssignmentOperatorType.Subtract)
{
var add = assignmentExpression.Operator == AssignmentOperatorType.Add;
if (this.Emitter.Validator.IsDelegateOrLambda(leftResolverResult))
{
delegateAssigment = true;
var leftMemberResolveResult = leftResolverResult as MemberResolveResult;
if (leftMemberResolveResult != null)
{
isEvent = leftMemberResolveResult.Member is DefaultResolvedEvent;
}
if (!isEvent)
{
this.Emitter.IsAssignment = true;
this.Emitter.AssignmentType = AssignmentOperatorType.Assign;
assignmentExpression.Left.AcceptVisitor(this.Emitter);
this.Emitter.IsAssignment = false;
if (this.Emitter.Writers.Count == initCount)
{
this.Write(" = ");
}
this.Write(Bridge.Translator.Emitter.ROOT + "." + (add ? Bridge.Translator.Emitter.DELEGATE_COMBINE : Bridge.Translator.Emitter.DELEGATE_REMOVE));
this.WriteOpenParentheses();
}
}
}
bool nullable = orr != null && orr.IsLiftedOperator;
string root = Bridge.Translator.Emitter.ROOT + ".Nullable.";
bool special = nullable;
this.Emitter.IsAssignment = true;
this.Emitter.AssignmentType = assignmentExpression.Operator;
var oldValue = this.Emitter.ReplaceAwaiterByVar;
this.Emitter.ReplaceAwaiterByVar = true;
bool thisAssignment = leftResolverResult is ThisResolveResult;
if (!thisAssignment)
{
if (special || (isDecimal && isDecimalExpected) || isUserOperator)
{
this.Emitter.AssignmentType = AssignmentOperatorType.Assign;
}
if (delegateAssigment && !isEvent)
{
this.Emitter.IsAssignment = false;
}
assignmentExpression.Left.AcceptVisitor(this.Emitter);
if (delegateAssigment)
{
this.Emitter.IsAssignment = true;
}
}
else
{
this.Write("(");
}
this.Emitter.ReplaceAwaiterByVar = oldValue;
this.Emitter.AssignmentType = oldAssigmentType;
this.Emitter.IsAssignment = oldAssigment;
if (this.Emitter.Writers.Count == 0 && !delegateAssigment && !thisAssignment)
{
this.WriteSpace();
}
if (isDecimal && isDecimalExpected)
{
if (this.Emitter.Writers.Count == initCount)
{
this.Write(" = ");
}
this.HandleDecimal(rr, variable);
if (this.Emitter.Writers.Count > initCount)
{
this.PopWriter();
}
if (needReturnValue)
{
this.Write(", " + variable + ")");
}
return;
}
if (this.ResolveOperator(assignmentExpression, orr, initCount))
{
return;
}
bool isBool = NullableType.IsNullable(rr.Type) ? NullableType.GetUnderlyingType(rr.Type).IsKnownType(KnownTypeCode.Boolean) : rr.Type.IsKnownType(KnownTypeCode.Boolean);
if (!delegateAssigment)
{
if (!special)
{
switch (assignmentExpression.Operator)
{
case AssignmentOperatorType.Assign:
break;
case AssignmentOperatorType.Add:
this.Write("+");
break;
case AssignmentOperatorType.BitwiseAnd:
if (!isBool)
{
this.Write("&");
}
break;
case AssignmentOperatorType.BitwiseOr:
if (!isBool)
{
this.Write("|");
}
break;
case AssignmentOperatorType.Divide:
this.Write("/");
break;
case AssignmentOperatorType.ExclusiveOr:
this.Write("^");
break;
case AssignmentOperatorType.Modulus:
this.Write("%");
break;
case AssignmentOperatorType.Multiply:
this.Write("*");
break;
case AssignmentOperatorType.ShiftLeft:
this.Write("<<");
break;
case AssignmentOperatorType.ShiftRight:
this.Write(">>");
break;
case AssignmentOperatorType.Subtract:
this.Write("-");
break;
default:
throw new EmitterException(assignmentExpression,
"Unsupported assignment operator: " + assignmentExpression.Operator.ToString());
}
}
if (special)
{
if (this.Emitter.Writers.Count == initCount)
{
this.Write("= ");
}
this.Write(root);
switch (assignmentExpression.Operator)
{
case AssignmentOperatorType.Assign:
break;
case AssignmentOperatorType.Add:
this.Write("add");
break;
case AssignmentOperatorType.BitwiseAnd:
this.Write(isBool ? "and" : "band");
break;
case AssignmentOperatorType.BitwiseOr:
this.Write(isBool ? "or" : "bor");
break;
case AssignmentOperatorType.Divide:
this.Write("div");
break;
case AssignmentOperatorType.ExclusiveOr:
this.Write("xor");
break;
case AssignmentOperatorType.Modulus:
this.Write("mod");
break;
case AssignmentOperatorType.Multiply:
this.Write("mul");
break;
case AssignmentOperatorType.ShiftLeft:
this.Write("sl");
break;
case AssignmentOperatorType.ShiftRight:
this.Write("sr");
break;
case AssignmentOperatorType.Subtract:
this.Write("sub");
break;
default:
throw new EmitterException(assignmentExpression,
"Unsupported assignment operator: " + assignmentExpression.Operator.ToString());
}
this.WriteOpenParentheses();
assignmentExpression.Left.AcceptVisitor(this.Emitter);
this.Write(", ");
}
int count = this.Emitter.Writers.Count;
if (count == 0 && !thisAssignment && !special)
{
this.Write("= ");
}
}
else if (!isEvent)
{
this.WriteComma();
}
if (!special && isBool && (assignmentExpression.Operator == AssignmentOperatorType.BitwiseAnd || assignmentExpression.Operator == AssignmentOperatorType.BitwiseOr))
{
assignmentExpression.Left.AcceptVisitor(this.Emitter);
this.Write(assignmentExpression.Operator == AssignmentOperatorType.BitwiseAnd ? " && " : " || ");
}
oldValue = this.Emitter.ReplaceAwaiterByVar;
this.Emitter.ReplaceAwaiterByVar = true;
if (charToString == 1)
{
this.Write("String.fromCharCode(");
}
if (needReturnValue)
{
this.Write(variable);
}
else
{
assignmentExpression.Right.AcceptVisitor(this.Emitter);
}
if (charToString == 1)
{
this.Write(")");
}
if (special)
{
this.WriteCloseParentheses();
}
if (thisAssignment)
{
this.Write(").$clone(this)");
}
this.Emitter.ReplaceAwaiterByVar = oldValue;
this.Emitter.AsyncExpressionHandling = asyncExpressionHandling;
if (this.Emitter.Writers.Count > initCount)
{
var writerCount = this.Emitter.Writers.Count;
for (int i = initCount; i < writerCount; i++)
{
this.PopWriter();
}
}
if (delegateAssigment)
{
this.WriteCloseParentheses();
}
if (needReturnValue)
{
this.Write(", " + variable + ")");
}
}
