protected void PopRecursiveValues(Value[] values, EmitContext context)
{
if (values.Length == 0)
{
return;
}
Value stack = context.RecursiveStackValue;
Value stackAddr = context.RecursiveStackAddressValue;
BoundAccessExpression stackAddrAccess = BoundAccessExpression.BindAccess(stackAddr);
TypeSymbol intType = context.GetTypeSymbol(SpecialType.System_Int32);
TypeSymbol objectType = context.GetTypeSymbol(SpecialType.System_Object);
TypeSymbol objectArrayType = objectType.MakeArrayType(context);
context.Module.AddCommentTag("Recursive stack pop");
BoundInvocationExpression decrementExpression = new BoundPrefixOperatorExpression(context, SyntaxNode,
stackAddrAccess, new ExternSynthesizedOperatorSymbol(BuiltinOperatorType.Subtraction, intType, context));
foreach (var valueToPop in values.Reverse())
{
context.Emit(decrementExpression);
ExternSynthesizedMethodSymbol arrayGetMethod = new ExternSynthesizedMethodSymbol(context, "Get",
objectArrayType, new [] { intType }, objectType, false);
context.Module.AddPush(stack);
context.Module.AddPush(stackAddr);
context.Module.AddPush(valueToPop);
context.Module.AddExtern(arrayGetMethod);
}
context.Module.AddCommentTag("Recursive stack pop end");
}
protected void PushRecursiveValues(Value[] values, EmitContext context)
{
if (values.Length == 0)
{
return;
}
Value stack = context.RecursiveStackValue;
BoundAccessExpression stackAccess = BoundAccessExpression.BindAccess(stack);
Value stackAddr = context.RecursiveStackAddressValue;
BoundAccessExpression stackAddrAccess = BoundAccessExpression.BindAccess(stackAddr);
context.Module.AddCommentTag("Recursive stack push");
// Now we start copying values over to the stack
BoundInvocationExpression incrementExpression = new BoundPrefixOperatorExpression(context, SyntaxNode,
stackAddrAccess, new ExternSynthesizedOperatorSymbol(BuiltinOperatorType.Addition, context.GetTypeSymbol(SpecialType.System_Int32), context));
foreach (var valueToPush in values)
{
BoundArrayAccessExpression arraySet = new BoundArrayAccessExpression(null, context, stackAccess,
new BoundExpression[] { stackAddrAccess });
context.EmitSet(arraySet, BoundAccessExpression.BindAccess(valueToPush));
context.Emit(incrementExpression);
}
context.Module.AddCommentTag("Recursive stack push end");
}
public override Value EmitValue(EmitContext context)
{
Value returnValue = base.EmitValue(context);
if (Initializers != null)
{
BoundAccessExpression arrayAccess = BoundAccessExpression.BindAccess(returnValue);
TypeSymbol intType = context.GetTypeSymbol(SpecialType.System_Int32);
using (context.InterruptAssignmentScope())
{
// This is quite wasteful for allocations in the compile, todo: look at caching these safely
for (int i = 0; i < Initializers.Length; ++i)
{
BoundAccessExpression elementAccess = BoundAccessExpression.BindElementAccess(context,
SyntaxNode, arrayAccess,
new BoundExpression[]
{ new BoundConstantExpression(new ConstantValue <int>(i), intType, SyntaxNode) });
context.EmitSet(elementAccess, Initializers[i]);
}
}
}
return(returnValue);
}
public override Value EmitValue(EmitContext context)
{
// We don't want any references outside the flow control to be dirtied conditionally
context.TopTable.DirtyAllValues();
Value returnValue = context.GetReturnValue(ValueType);
context.EmitValueAssignment(returnValue, Lhs);
TypeSymbol systemObjectType = context.GetTypeSymbol(SpecialType.System_Object);
MethodSymbol objectEquality = new ExternSynthesizedOperatorSymbol(BuiltinOperatorType.Equality, systemObjectType, context);
Value conditionCheck = context.EmitValue(BoundInvocationExpression.CreateBoundInvocation(context, null,
objectEquality, null,
new BoundExpression[]
{
BoundAccessExpression.BindAccess(returnValue),
BoundAccessExpression.BindAccess(context.GetConstantValue(systemObjectType, null))
}));
JumpLabel notNullLabel = context.Module.CreateLabel();
context.Module.AddJumpIfFalse(notNullLabel, conditionCheck);
context.EmitValueAssignment(returnValue, Rhs);
context.Module.LabelJump(notNullLabel);
return(returnValue);
}
public override Value EmitValue(EmitContext context)
{
Value returnValue;
if (context.IsRecursiveMethodEmit)
{
using (context.InterruptAssignmentScope())
{
returnValue = context.EmitValue(new BoundArrayCreationExpression(SyntaxNode, context, ArrayType,
new BoundExpression[]
{
BoundAccessExpression.BindAccess(
context.GetConstantValue(context.GetTypeSymbol(SpecialType.System_Int32),
Initializers.Length))
}, null));
}
}
else
{
returnValue = context.CreateGlobalInternalValue(ArrayType);
returnValue.DefaultValue = Activator.CreateInstance(ArrayType.UdonType.SystemType, Initializers.Length);
}
BoundAccessExpression arrayAccess = BoundAccessExpression.BindAccess(returnValue);
TypeSymbol intType = context.GetTypeSymbol(SpecialType.System_Int32);
// This is quite wasteful for allocations in the compile, todo: look at caching these safely
for (int i = 0; i < Initializers.Length; ++i)
{
BoundAccessExpression elementAccess = BoundAccessExpression.BindElementAccess(context, SyntaxNode, arrayAccess, new BoundExpression[] { new BoundConstantExpression(new ConstantValue <int>(i), intType, SyntaxNode) });
context.EmitSet(elementAccess, Initializers[i]);
}
return(returnValue);
}
public override Value EmitValue(EmitContext context)
{
Type operandType = ValueType.UdonType.SystemType;
object allBits;
if (UdonSharpUtils.IsSignedType(operandType))
{
allBits = Convert.ChangeType(-1, operandType);
}
else
{
allBits = operandType.GetField("MaxValue").GetValue(null);
}
BoundAccessExpression allBitsExpr = BoundAccessExpression.BindAccess(context.GetConstantValue(ValueType, allBits));
Value returnValue = context.GetReturnValue(ValueType);
using (context.InterruptAssignmentScope())
{
BoundAccessExpression operandVal = BoundAccessExpression.BindAccess(context.EmitValue(SourceExpression));
context.EmitValueAssignment(returnValue,
CreateBoundInvocation(context, null,
new ExternSynthesizedOperatorSymbol(BuiltinOperatorType.LogicalXor, ValueType, context), null,
new BoundExpression[] { operandVal, allBitsExpr }));
}
return(returnValue);
}
public override Value EmitValue(EmitContext context)
{
Value returnVal = context.GetReturnValue(ValueType);
context.EmitValueAssignment(returnVal,
BoundAccessExpression.BindAccess(context.GetConstantValue(ValueType, ConstantValue.Value)));
return(returnVal);
}
private BoundAccessExpression VisitAccessExpression(SyntaxNode node)
{
if (node.Kind() == SyntaxKind.ElementAccessExpression)
{
return((BoundAccessExpression)Visit(node));
}
if (node.Kind() != SyntaxKind.IdentifierName &&
node.Kind() != SyntaxKind.SimpleMemberAccessExpression &&
node.Kind() != SyntaxKind.ThisExpression)
{
return(null);
}
Symbol nodeSymbol = GetSymbol(node);
if (nodeSymbol.RoslynSymbol.Kind == SymbolKind.NamedType)
{
return(null);
}
BoundExpression lhsExpression = null;
if (node is MemberAccessExpressionSyntax accessExpressionSyntax)
{
lhsExpression = VisitExpression(accessExpressionSyntax.Expression);
if (accessExpressionSyntax.Expression.Kind() != SyntaxKind.ThisExpression)
{
if (lhsExpression == null && !nodeSymbol.IsStatic)
{
lhsExpression = BoundAccessExpression.BindThisAccess(OwningSymbol.ContainingType);
}
BoundAccessExpression access = BoundAccessExpression.BindAccess(Context, node, nodeSymbol, lhsExpression);
if (accessExpressionSyntax.Expression.Kind() == SyntaxKind.BaseExpression)
{
access.MarkForcedBaseCall();
}
return(access);
}
}
if (!nodeSymbol.IsStatic)
{
lhsExpression = BoundAccessExpression.BindThisAccess(OwningSymbol.ContainingType);
}
return(BoundAccessExpression.BindAccess(Context, node, nodeSymbol, lhsExpression));
}
public override Value EmitValue(EmitContext context)
{
Value targetValue =
context.EmitValueWithDeferredRelease(TargetExpression);
var invocation = CreateBoundInvocation(context, null, OperatorMethod, null,
new[] { BoundAccessExpression.BindAccess(targetValue), AssignmentSource });
Value setResult;
if (TargetExpression.ValueType != OperatorMethod.ReturnType)
{
setResult = context.EmitSet(TargetExpression, new BoundCastExpression(null, invocation, ValueType, true));
}
else
{
setResult = context.EmitSet(TargetExpression, invocation);
}
return(setResult);
}
public override Value EmitValue(EmitContext context)
{
BoundInvocationExpression formatInvoke;
if (InterpolationExpressions.Length > 3)
{
BoundConstArrayCreationExpression interpolationArray =
new BoundConstArrayCreationExpression(SyntaxNode, ObjectArr, InterpolationExpressions);
BoundAccessExpression arrayAccess =
BoundAccessExpression.BindAccess(context.EmitValue(interpolationArray));
formatInvoke = BoundInvocationExpression.CreateBoundInvocation(context, SyntaxNode, StringFormatMethod,
null, new BoundExpression[] { BuiltStr, arrayAccess });
}
else
{
formatInvoke = BoundInvocationExpression.CreateBoundInvocation(context, SyntaxNode, StringFormatMethod,
null, new BoundExpression[] { BuiltStr }.Concat(InterpolationExpressions).ToArray());
}
return(context.EmitValue(formatInvoke));
}
public override BoundNode VisitDeclarationExpression(DeclarationExpressionSyntax node)
{
return(BoundAccessExpression.BindAccess(Context, node, GetDeclaredSymbol(node.Designation), null));
}
public override Value EmitValue(EmitContext context)
{
// Make base calls to UdonSharpBehaviour events a noop
if (IsBaseCall)
{
if (Method.ContainingType == context.GetTypeSymbol(typeof(UdonSharpBehaviour)))
{
if (Method.Name == "OnOwnershipRequest")
{
return(context.GetConstantValue(context.GetTypeSymbol(SpecialType.System_Boolean), true));
}
return(null);
}
}
if (SourceExpression == null || SourceExpression.IsThis)
{
return(base.EmitValue(context));
}
// Calls across UdonBehaviours
CompilationContext.MethodExportLayout layout =
context.CompileContext.GetUsbMethodLayout(Method, context);
Value.CowValue instanceCowValue = GetInstanceValue(context);
Value instanceValue = instanceCowValue.Value;
BoundAccessExpression instanceAccess = BoundAccessExpression.BindAccess(instanceValue);
TypeSymbol stringType = context.GetTypeSymbol(SpecialType.System_String);
Value[] recursiveValues = null;
Value stackSizeCheckVal = null;
bool isRecursiveCall = context.IsRecursiveMethodEmit;
if (isRecursiveCall)
{
stackSizeCheckVal = context.CreateGlobalInternalValue(context.GetTypeSymbol(SpecialType.System_Int32));
}
if (Method.Parameters.Length > 0)
{
MethodSymbol setProgramVariableMethod = context.GetTypeSymbol(typeof(UdonSharpBehaviour))
.GetMembers <MethodSymbol>("SetProgramVariable", context)
.First(e => e.Parameters.Length == 2 &&
e.Parameters[0].Type == stringType);
Value[] parameterValues = GetParameterValues(context);
instanceValue = instanceCowValue.Value;
instanceAccess = BoundAccessExpression.BindAccess(instanceValue); // Re-bind here since the parameters may have changed the cowvalue
if (isRecursiveCall)
{
EmitContext.MethodLinkage selfLinkage = context.GetMethodLinkage(context.CurrentEmitMethod, false);
recursiveValues = selfLinkage.ParameterValues;
CheckStackSize(stackSizeCheckVal, context);
PushRecursiveValues(recursiveValues, context);
for (int i = 0; i < parameterValues.Length; ++i)
{
Value paramIntermediate = context.CreateInternalValue(parameterValues[i].UserType);
context.Module.AddCopy(parameterValues[i], paramIntermediate);
parameterValues[i] = paramIntermediate;
}
}
else
{
instanceCowValue.Dispose();
}
context.TopTable.DirtyAllValues();
for (int i = 0; i < Method.Parameters.Length; ++i)
{
context.Emit(CreateBoundInvocation(context, SyntaxNode, setProgramVariableMethod, instanceAccess,
new BoundExpression[]
{
BoundAccessExpression.BindAccess(context.GetConstantValue(stringType, layout.ParameterExportNames[i])),
BoundAccessExpression.BindAccess(parameterValues[i])
}));
}
}
if (isRecursiveCall)
{
if (recursiveValues == null)
{
recursiveValues = Array.Empty <Value>();
}
Value[] scopeValues = context.CollectRecursiveValues();
PushRecursiveValues(scopeValues, context);
recursiveValues = recursiveValues.Concat(scopeValues).ToArray();
stackSizeCheckVal.DefaultValue = recursiveValues.Length;
context.UpdateRecursiveStackMaxSize(recursiveValues.Length);
}
MethodSymbol sendCustomEventMethod = context.GetTypeSymbol(typeof(UdonSharpBehaviour)).GetMember <MethodSymbol>("SendCustomEvent", context);
context.Emit(CreateBoundInvocation(context, SyntaxNode, sendCustomEventMethod, BoundAccessExpression.BindAccess(instanceValue),
new BoundExpression[]
{
BoundAccessExpression.BindAccess(context.GetConstantValue(stringType, layout.ExportMethodName))
}));
if (isRecursiveCall)
{
PopRecursiveValues(recursiveValues, context);
}
if (Method.Parameters.Length > 0 &&
Method.Parameters.Any(e => e.IsOut))
{
if (isRecursiveCall)
{
throw new CompilerException("U# does not yet support calling user methods with ref/out parameters from methods marked with RecursiveMethod");
}
MethodSymbol getProgramVariableMethod = context.GetTypeSymbol(typeof(UdonSharpBehaviour))
.GetMembers <MethodSymbol>("GetProgramVariable", context)
.First(e => e.Parameters.Length == 1 &&
e.Parameters[0].Type == stringType);
// Copy out/ref parameters back
for (int i = 0; i < Method.Parameters.Length; ++i)
{
ParameterSymbol parameterSymbol = Method.Parameters[i];
if (parameterSymbol.IsOut)
{
BoundAccessExpression currentAccessExpression = (BoundAccessExpression)ParameterExpressions[i];
currentAccessExpression.EmitSet(context, CreateBoundInvocation(context, SyntaxNode,
getProgramVariableMethod, instanceAccess, new[]
{
BoundAccessExpression.BindAccess(context.GetConstantValue(stringType,
layout.ParameterExportNames[i]))
}));
}
}
}
if (IsPropertySetter)
{
return(GetParameterValues(context).Last());
}
if (Method.ReturnType != null)
{
MethodSymbol getProgramVariableMethod = context.GetTypeSymbol(typeof(UdonSharpBehaviour))
.GetMembers <MethodSymbol>("GetProgramVariable", context)
.First(e => e.Parameters.Length == 1 &&
e.Parameters[0].Type == stringType);
Value returnVal = context.CreateInternalValue(Method.ReturnType);
BoundInvocationExpression boundGetReturn = CreateBoundInvocation(context, SyntaxNode,
getProgramVariableMethod, instanceAccess,
new BoundExpression[]
{
BoundAccessExpression.BindAccess(context.GetConstantValue(stringType,
layout.ReturnExportName))
});
context.EmitValueAssignment(returnVal, boundGetReturn);
return(returnVal);
}
return(null);
}
private static bool TryCreateGetComponentInvocation(AbstractPhaseContext context, SyntaxNode node,
MethodSymbol symbol, BoundExpression instanceExpression, BoundExpression[] parameterExpressions,
out BoundInvocationExpression createdInvocation)
{
if (symbol.RoslynSymbol != null &&
symbol.RoslynSymbol.IsGenericMethod &&
symbol.TypeArguments.Length == 1 &&
_getComponentNames.Contains(symbol.Name) &&
(symbol.ContainingType.UdonType.SystemType == typeof(Component) || symbol.ContainingType.UdonType.SystemType == typeof(GameObject)))
{
TypeSymbol gameObjectType = context.GetTypeSymbol(typeof(GameObject));
TypeSymbol typeArgument = symbol.TypeArguments[0];
// udon-workaround: Work around the udon bug where it checks the strongbox type instead of variable type and blows up when the strong box is `object`
if (instanceExpression.ValueType == gameObjectType)
{
PropertySymbol accessProperty = gameObjectType.GetMember <PropertySymbol>("transform", context);
instanceExpression = BoundAccessExpression.BindAccess(context, node, accessProperty, instanceExpression);
}
else
{
PropertySymbol accessProperty = context.GetTypeSymbol(typeof(Component)).GetMember <PropertySymbol>("transform", context);
instanceExpression = BoundAccessExpression.BindAccess(context, node, accessProperty, instanceExpression);
}
TypeSymbol udonSharpBehaviourType = context.GetTypeSymbol(typeof(UdonSharpBehaviour));
// Exact UdonSharpBehaviour type match
if (typeArgument == udonSharpBehaviourType)
{
MethodSymbol getComponentMethodShim = context.GetTypeSymbol(typeof(GetComponentShim))
.GetMembers <MethodSymbol>(symbol.Name + "USB", context)
.First(e => e.Parameters.Length == parameterExpressions.Length + 1);
createdInvocation = new BoundStaticUserMethodInvocation(node, getComponentMethodShim,
new [] { instanceExpression }.Concat(parameterExpressions).ToArray());
context.MarkSymbolReferenced(getComponentMethodShim);
return(true);
}
// Subclass of UdonSharpBehaviour
if (typeArgument.IsUdonSharpBehaviour)
{
// Handle inherited types
if (context.CompileContext.HasInheritedUdonSharpBehaviours(typeArgument))
{
MethodSymbol getComponentInheritedMethodShim = context.GetTypeSymbol(typeof(GetComponentShim))
.GetMembers <MethodSymbol>(symbol.Name + "I", context)
.First(e => e.Parameters.Length == parameterExpressions.Length + 1);
getComponentInheritedMethodShim = getComponentInheritedMethodShim.ConstructGenericMethod(context, new [] { typeArgument });
createdInvocation = new BoundStaticUserMethodInvocation(node, getComponentInheritedMethodShim,
new [] { instanceExpression }.Concat(parameterExpressions).ToArray());
context.MarkSymbolReferenced(getComponentInheritedMethodShim);
return(true);
}
MethodSymbol getComponentMethodShim = context.GetTypeSymbol(typeof(GetComponentShim))
.GetMembers <MethodSymbol>(symbol.Name, context)
.First(e => e.Parameters.Length == parameterExpressions.Length + 1);
getComponentMethodShim = getComponentMethodShim.ConstructGenericMethod(context, new [] { typeArgument });
createdInvocation = new BoundStaticUserMethodInvocation(node, getComponentMethodShim,
new [] { instanceExpression }.Concat(parameterExpressions).ToArray());
context.MarkSymbolReferenced(getComponentMethodShim);
return(true);
}
if (_brokenGetComponentTypes.Contains(typeArgument.UdonType.SystemType))
{
MethodSymbol getComponentInheritedMethodShim = context.GetTypeSymbol(typeof(GetComponentShim))
.GetMembers <MethodSymbol>(symbol.Name + "VRC", context)
.First(e => e.Parameters.Length == parameterExpressions.Length + 1);
getComponentInheritedMethodShim = getComponentInheritedMethodShim.ConstructGenericMethod(context, new [] { typeArgument });
createdInvocation = new BoundStaticUserMethodInvocation(node, getComponentInheritedMethodShim,
new [] { instanceExpression }.Concat(parameterExpressions).ToArray());
context.MarkSymbolReferenced(getComponentInheritedMethodShim);
return(true);
}
createdInvocation = new BoundGetUnityEngineComponentInvocation(context, node, symbol,
instanceExpression,
parameterExpressions);
return(true);
}
createdInvocation = null;
return(false);
}
protected void CheckStackSize(Value valueCount, EmitContext context)
{
using (context.InterruptAssignmentScope())
{
Value stack = context.RecursiveStackValue;
BoundAccessExpression stackAccess = BoundAccessExpression.BindAccess(stack);
Value stackAddr = context.RecursiveStackAddressValue;
BoundAccessExpression stackAddrAccess = BoundAccessExpression.BindAccess(stackAddr);
TypeSymbol arrayType = context.GetTypeSymbol(SpecialType.System_Array);
context.Module.AddCommentTag("Stack size check");
// Check stack size and double it if it's not enough
// We know that doubling once will always be enough since the default size of the stack is the max number of stack values pushed in any method
PropertySymbol arraySizeProperty = arrayType.GetMember <PropertySymbol>("Length", context);
TypeSymbol intType = context.GetTypeSymbol(SpecialType.System_Int32);
Value arraySize =
context.EmitValue(BoundAccessExpression.BindAccess(context, SyntaxNode, arraySizeProperty,
stackAccess));
BoundAccessExpression arraySizeAccess = BoundAccessExpression.BindAccess(arraySize);
Value targetSize = context.EmitValue(CreateBoundInvocation(context, SyntaxNode,
new ExternSynthesizedOperatorSymbol(BuiltinOperatorType.Addition, intType, context), null,
new BoundExpression[] { stackAddrAccess, BoundAccessExpression.BindAccess(valueCount) }));
Value isSizeGreaterThan = context.EmitValue(CreateBoundInvocation(context, SyntaxNode,
new ExternSynthesizedOperatorSymbol(BuiltinOperatorType.GreaterThanOrEqual, intType, context), null,
new BoundExpression[]
{
BoundAccessExpression.BindAccess(targetSize),
arraySizeAccess,
}));
JumpLabel skipResizeLabel = context.Module.CreateLabel();
context.Module.AddJumpIfFalse(skipResizeLabel, isSizeGreaterThan);
// Resize logic
Value constantTwo = context.GetConstantValue(intType, 2);
Value newSize = context.EmitValue(CreateBoundInvocation(context, SyntaxNode,
new ExternSynthesizedOperatorSymbol(BuiltinOperatorType.Multiplication, intType, context), null,
new BoundExpression[]
{
arraySizeAccess,
BoundAccessExpression.BindAccess(constantTwo),
}));
Value newArray = context.EmitValue(new BoundArrayCreationExpression(SyntaxNode, context,
context.GetTypeSymbol(SpecialType.System_Object).MakeArrayType(context),
new BoundExpression[] { BoundAccessExpression.BindAccess(newSize) }, null));
MethodSymbol arrayCopyMethod = arrayType.GetMembers <MethodSymbol>("Copy", context)
.First(e => e.Parameters.Length == 3 && e.Parameters[2].Type == intType);
context.Emit(CreateBoundInvocation(context, null, arrayCopyMethod, null,
new BoundExpression[]
{
stackAccess,
BoundAccessExpression.BindAccess(newArray),
BoundAccessExpression.BindAccess(arraySize)
}));
context.Module.AddCopy(newArray, stack);
context.Module.LabelJump(skipResizeLabel);
context.Module.AddCommentTag("Stack size check end");
}
}
public override Value EmitValue(EmitContext context)
{
JumpLabel returnPoint = context.Module.CreateLabel();
Value returnPointVal =
context.CreateGlobalInternalValue(context.GetTypeSymbol(SpecialType.System_UInt32));
context.Module.AddPush(returnPointVal);
var linkage = context.GetMethodLinkage(Method, !IsBaseCall);
Value[] parameterValues = GetParameterValues(context);
Value[] recursiveValues = null;
bool isRecursiveCall = context.IsRecursiveMethodEmit;
Value stackSizeCheckVal = null;
if (isRecursiveCall)
{
EmitContext.MethodLinkage selfLinkage = context.GetMethodLinkage(context.CurrentEmitMethod, false);
recursiveValues = selfLinkage.ParameterValues;
stackSizeCheckVal = context.CreateGlobalInternalValue(context.GetTypeSymbol(SpecialType.System_Int32));
CheckStackSize(stackSizeCheckVal, context);
PushRecursiveValues(selfLinkage.ParameterValues, context);
}
ReleaseCowReferences(context);
if (isRecursiveCall)
{
Value.CowValue[] paramCows = parameterValues.Select(e => e.GetCowValue(context)).ToArray();
for (int i = 0; i < linkage.ParameterValues.Length; ++i)
{
context.EmitValueAssignment(linkage.ParameterValues[i], BoundAccessExpression.BindAccess(paramCows[i]));
}
foreach (var paramCow in paramCows)
{
paramCow.Dispose();
}
}
else
{
for (int i = 0; i < linkage.ParameterValues.Length; ++i)
{
context.Module.AddCopy(parameterValues[i], linkage.ParameterValues[i]);
}
}
context.TopTable.DirtyAllValues();
if (isRecursiveCall)
{
Value[] collectedValues = context.CollectRecursiveValues().Where(e => !recursiveValues.Contains(e)).ToArray();
PushRecursiveValues(collectedValues, context);
recursiveValues = recursiveValues.Concat(collectedValues).ToArray();
stackSizeCheckVal.DefaultValue = recursiveValues.Length;
context.UpdateRecursiveStackMaxSize(recursiveValues.Length);
}
context.Module.AddCommentTag($"Calling {Method}");
context.Module.AddJump(linkage.MethodLabel);
context.Module.LabelJump(returnPoint);
returnPointVal.DefaultValue = returnPoint.Address;
Value recursiveRet = null;
if (isRecursiveCall)
{
if (linkage.ReturnValue != null)
{
recursiveRet = context.CreateInternalValue(linkage.ReturnValue.UserType);
context.Module.AddCopy(linkage.ReturnValue, recursiveRet);
}
PopRecursiveValues(recursiveValues, context);
}
// Handle out/ref parameters
for (int i = 0; i < Method.Parameters.Length; ++i)
{
if (!Method.Parameters[i].IsOut)
{
continue;
}
if (isRecursiveCall)
{
throw new CompilerException("U# does not yet support calling user methods with ref/out parameters from methods marked with RecursiveMethod");
}
BoundAccessExpression paramAccess = (BoundAccessExpression)ParameterExpressions[i];
paramAccess.EmitSet(context, BoundAccessExpression.BindAccess(linkage.ParameterValues[i]));
}
// Properties need to return the value that they are set to for assignment expressions
if (IsPropertySetter)
{
return(parameterValues.Last());
}
if (Method.ReturnType != null)
{
if (isRecursiveCall)
{
return(recursiveRet);
}
return(linkage.ReturnValue);
}
return(null);
}
public override void Emit(EmitContext context)
{
var blockScope = context.OpenBlockScope();
TypeSymbol intType = context.GetTypeSymbol(SpecialType.System_Int32);
MethodSymbol toCharArrayMethod = context.GetTypeSymbol(SpecialType.System_String).GetMembers <MethodSymbol>("ToCharArray", context).First(e => e.Parameters.Length == 0);
PropertySymbol lengthProperty = context.GetTypeSymbol(SpecialType.System_Array).GetMember <PropertySymbol>("Length", context);
Value iteratorValue = context.EmitValue(BoundInvocationExpression.CreateBoundInvocation(context, SyntaxNode, toCharArrayMethod, IteratorSource, new BoundExpression[] {}));
iteratorValue.MarkUsedRecursively();
var iteratorAccess = BoundAccessExpression.BindAccess(iteratorValue);
Value arraySize = context.CreateInternalValue(intType);
arraySize.MarkUsedRecursively();
BoundAccessExpression getLength = BoundAccessExpression.BindAccess(context, SyntaxNode, lengthProperty, iteratorAccess);
context.EmitValueAssignment(arraySize, getLength);
// Declare and reset incrementor value
Value incrementorValue = context.CreateInternalValue(intType);
incrementorValue.MarkUsedRecursively();
context.EmitValueAssignment(incrementorValue, BoundAccessExpression.BindAccess(context.GetConstantValue(intType, 0)));
JumpLabel loopLabel = context.Module.CreateLabel();
context.Module.LabelJump(loopLabel);
var incrementorAccess = BoundAccessExpression.BindAccess(incrementorValue);
BoundExpression increment = new BoundInvocationExpression.BoundPrefixOperatorExpression(context, SyntaxNode,
incrementorAccess, new ExternSynthesizedOperatorSymbol(BuiltinOperatorType.Addition, intType, context));
var lengthCheck = BoundInvocationExpression.CreateBoundInvocation(context, SyntaxNode,
new ExternSynthesizedOperatorSymbol(BuiltinOperatorType.LessThan, intType, context), null,
new BoundExpression[]
{
incrementorAccess,
BoundAccessExpression.BindAccess(arraySize)
});
JumpLabel exitLoopLabel = context.PushBreakLabel();
JumpLabel continueLabel = context.PushContinueLabel();
Value lengthCheckResult = context.EmitValue(lengthCheck);
context.Module.AddJumpIfFalse(exitLoopLabel, lengthCheckResult);
context.EmitValueAssignment(context.GetUserValue(ValueSymbol),
BoundAccessExpression.BindElementAccess(context, SyntaxNode, iteratorAccess,
new BoundExpression[] { incrementorAccess }));
context.Emit(BodyStatement);
context.Module.LabelJump(continueLabel);
context.Emit(increment);
context.Module.AddJump(loopLabel);
context.Module.LabelJump(exitLoopLabel);
context.PopBreakLabel();
context.PopContinueLabel();
blockScope.Dispose();
}
public override Value EmitValue(EmitContext context)
{
Value returnValue = context.GetReturnValue(TargetExpression.ValueType);
context.EmitValueAssignment(returnValue, TargetExpression);
Type targetType = TargetExpression.ValueType.UdonType.SystemType;
IConstantValue incrementValue = (IConstantValue)Activator.CreateInstance(
typeof(ConstantValue <>).MakeGenericType(targetType), Convert.ChangeType(1, targetType));
BoundExpression expression = CreateBoundInvocation(context, null, InternalExpression.Method, null,
new BoundExpression[] { BoundAccessExpression.BindAccess(returnValue), new BoundConstantExpression(incrementValue, TargetExpression.ValueType, SyntaxNode) });
if (InternalExpression.Method.ReturnType != TargetExpression.ValueType)
{
expression = new BoundCastExpression(null, expression, ValueType, true);
}
context.EmitSet(TargetExpression, expression);
return(returnValue);
}