public NewArrayTranslation(NewArrayExpression newArray, ITranslationContext context)
{
Type = newArray.Type;
_typeNameTranslation = context.GetTranslationFor(newArray.Type.GetElementType());
var translationSize = _typeNameTranslation.TranslationSize + 6;
var formattingSize = _typeNameTranslation.FormattingSize;
if (newArray.Expressions.Count == 0)
{
_boundTranslations = Enumerable <ITranslation> .EmptyArray;
}
else
{
_boundTranslationCount = newArray.Expressions.Count;
_boundTranslations = new ITranslation[_boundTranslationCount];
for (var i = 0; i < _boundTranslationCount; ++i)
{
var boundTranslation = context.GetTranslationFor(newArray.Expressions[i]);
_boundTranslations[i] = boundTranslation;
translationSize += boundTranslation.TranslationSize + 2;
formattingSize += boundTranslation.FormattingSize;
}
}
TranslationSize = translationSize;
FormattingSize = formattingSize;
}
public static ITranslation GetSubjectTranslation(
this MethodCallExpression methodCall,
ITranslationContext context)
{
return(context.GetTranslationFor(methodCall.GetSubject()) ??
context.GetTranslationFor(methodCall.Method.DeclaringType));
}
public NewArrayTranslation(NewArrayExpression newArray, ITranslationContext context)
{
Type = newArray.Type;
_typeNameTranslation = context.GetTranslationFor(newArray.Type.GetElementType());
var estimatedSize = _typeNameTranslation.EstimatedSize + 6;
if (newArray.Expressions.Count == 0)
{
_boundTranslations = Enumerable <ITranslation> .EmptyArray;
}
else
{
_boundTranslations = new ITranslation[newArray.Expressions.Count];
for (var i = 0; ;)
{
var boundTranslation = context.GetTranslationFor(newArray.Expressions[i]);
_boundTranslations[i] = boundTranslation;
estimatedSize += boundTranslation.EstimatedSize + 2;
if (++i == _boundTranslations.Length)
{
break;
}
}
}
EstimatedSize = estimatedSize;
}
public static ITranslation For(MethodCallExpression methodCall, ITranslationContext context)
{
var method = new BclMethodWrapper(methodCall.Method);
var parameters = new ParameterSetTranslation(method, methodCall.Arguments, context);
if (context.Settings.ConvertPropertyMethodsToSimpleSyntax && IsDirectPropertyMethodCall(methodCall, out var propertyInfo))
{
var objTranslation = context.GetTranslationFor(methodCall.Object);
var propertyAccess = new MemberAccessTranslation(objTranslation, propertyInfo.Name, propertyInfo.PropertyType);
var isAssignment = methodCall.Method.ReturnType == typeof(void);
if (isAssignment)
{
var valueExpr = methodCall.Arguments.First();
return(new AssignmentTranslation(Assign, propertyAccess, valueExpr, context));
}
else
{
return(propertyAccess);
}
}
if (IsStringConcatCall(methodCall))
{
return(new StringConcatenationTranslation(Call, methodCall.Arguments, context));
}
if (methodCall.Method.IsImplicitOperator())
{
return(new CodeBlockTranslation(parameters[0]).WithNodeType(Call));
}
var subject = GetSubjectTranslation(methodCall, context);
if (IsIndexedPropertyAccess(methodCall))
{
return(new IndexAccessTranslation(subject, parameters, methodCall.Type));
}
parameters = parameters.WithParentheses();
if (methodCall.Method.IsExplicitOperator())
{
return(CastTranslation.ForExplicitOperator(
parameters[0],
context.GetTranslationFor(methodCall.Method.ReturnType)));
}
var methodCallTranslation = new StandardMethodCallTranslation(Call, subject, method, parameters, context);
if (context.IsPartOfMethodCallChain(methodCall))
{
methodCallTranslation.AsPartOfMethodCallChain();
}
return(methodCallTranslation);
}
private BinaryTranslation(BinaryExpression binary, ITranslationContext context)
: base(IsCheckedBinary(binary.NodeType), "(", ")")
{
NodeType = binary.NodeType;
Type = binary.Type;
_leftOperandTranslation = context.GetTranslationFor(binary.Left);
_operator = GetOperator(binary);
_rightOperandTranslation = context.GetTranslationFor(binary.Right);
EstimatedSize = GetEstimatedSize();
}
private BinaryTranslation(BinaryExpression binary, ITranslationContext context)
: base(IsCheckedBinary(binary.NodeType), "(", ")")
{
_context = context;
NodeType = binary.NodeType;
Type = binary.Type;
_leftOperandTranslation = context.GetTranslationFor(binary.Left);
_operator = GetOperator(binary);
_rightOperandTranslation = context.GetTranslationFor(binary.Right);
TranslationSize = GetTranslationSize();
FormattingSize = _leftOperandTranslation.FormattingSize + _rightOperandTranslation.FormattingSize;
}
private static ITranslation GetSubjectOrNull(MemberExpression memberAccess, ITranslationContext context)
{
if (memberAccess.Expression == null)
{
return(context.GetTranslationFor(memberAccess.Member.DeclaringType));
}
if (SubjectIsCapturedInstance(memberAccess))
{
return(null);
}
return(context.GetTranslationFor(memberAccess.Expression));
}
public static ITranslation For(UnaryExpression cast, ITranslationContext context)
{
var castValueTranslation = context.GetTranslationFor(cast.Operand);
switch (cast.NodeType)
{
case ExpressionType.Convert:
case ConvertChecked:
if (cast.Type == typeof(object))
{
// Don't bother to show a boxing cast:
return(castValueTranslation);
}
if (cast.Method != null)
{
var isImplicitOperator = cast.Method.IsImplicitOperator();
if (isImplicitOperator)
{
return(castValueTranslation.ShouldWriteInParentheses()
? castValueTranslation.WithParentheses()
: castValueTranslation);
}
if (cast.Method.IsExplicitOperator())
{
break;
}
return(MethodCallTranslation.ForCustomMethodCast(
context.GetTranslationFor(cast.Type),
new BclMethodWrapper(cast.Method),
castValueTranslation,
context));
}
if (IsDelegateCast(cast, out var createDelegateCall))
{
return(MethodGroupTranslation.ForCreateDelegateCall(cast.NodeType, createDelegateCall, context));
}
break;
case TypeAs:
return(new TypeTestedTranslation(TypeAs, castValueTranslation, " as ", cast.Type, context));
}
return(new StandardCastTranslation(cast, castValueTranslation, context));
}
public SwitchTranslation(SwitchExpression switchStatement, ITranslationContext context)
{
Type = switchStatement.Type;
_valueTranslation = context.GetTranslationFor(switchStatement.SwitchValue);
var estimatedSize = _valueTranslation.EstimatedSize;
var caseCount = switchStatement.Cases.Count;
_caseTestValueTranslations = new ITranslation[caseCount][];
_caseTranslations = new ITranslation[caseCount];
for (var i = 0; ;)
{
var @case = switchStatement.Cases[i];
var testValueCount = @case.TestValues.Count;
var caseTestValueTranslations = new ITranslation[testValueCount];
for (var j = 0; ;)
{
var caseTestValueTranslation = context.GetTranslationFor(@case.TestValues[j]);
caseTestValueTranslations[j] = caseTestValueTranslation;
estimatedSize += caseTestValueTranslation.EstimatedSize;
if (++j == testValueCount)
{
break;
}
}
_caseTestValueTranslations[i] = caseTestValueTranslations;
_caseTranslations[i] = GetCaseBodyTranslationOrNull(@case.Body, context);
if (++i == caseCount)
{
break;
}
}
_defaultCaseTranslation = GetCaseBodyTranslationOrNull(switchStatement.DefaultBody, context);
if (_defaultCaseTranslation != null)
{
estimatedSize += _defaultCaseTranslation.EstimatedSize;
}
EstimatedSize = estimatedSize;
}
private NewingTranslation(
NewExpression newing,
ITranslationContext context,
bool omitParenthesesIfParameterless)
: base(newing, context)
{
_typeNameTranslation = context.GetTranslationFor(newing.Type).WithObjectTypeName();
if (omitParenthesesIfParameterless && Parameters.None)
{
Parameters.WithoutParentheses();
}
else
{
Parameters.WithParentheses();
}
TranslationSize =
"new ".Length +
_typeNameTranslation.TranslationSize +
Parameters.TranslationSize;
FormattingSize =
context.GetKeywordFormattingSize() +
_typeNameTranslation.FormattingSize +
Parameters.FormattingSize;
}
public static ITranslation For(ConstantExpression constant, ITranslationContext context)
{
if (constant.Value == null)
{
return(FixedValueTranslation("null", constant.Type));
}
if (constant.Type.IsEnum())
{
return(new EnumConstantTranslation(constant, context));
}
if (TryTranslateFromTypeCode(constant, context, out var translation))
{
return(translation);
}
var valueType = constant.Value.GetType();
if (valueType.IsPrimitive() || valueType.IsValueType())
{
return(FixedValueTranslation(constant.Value, valueType));
}
return(context.GetTranslationFor(valueType).WithNodeType(Constant));
}
public NamedVariableExceptionClause(CatchBlock catchBlock, ITranslationContext context)
{
_exceptionTypeTranslation = context.GetTranslationFor(catchBlock.Test);
_variableName = catchBlock.Variable.Name;
TranslationSize = _exceptionTypeTranslation.TranslationSize + _variableName.Length + 5;
FormattingSize = _exceptionTypeTranslation.FormattingSize;
}
public NegationTranslation(UnaryExpression negation, ITranslationContext context)
: this(
negation.NodeType,
(negation.NodeType == ExpressionType.Not) ? _bang : '-',
context.GetTranslationFor(negation.Operand))
{
}
public NewEmptyBoundedArrayTranslation(Expression arrayInit, ITranslationContext context)
: base(arrayInit)
{
_emptyArrayNewing = context.GetTranslationFor(arrayInit.Type.GetElementType());
TranslationSize = "new ".Length + _emptyArrayNewing.TranslationSize + "[0]".Length;
FormattingSize = context.GetKeywordFormattingSize() + _emptyArrayNewing.FormattingSize;
}
public void WithTypeNames(ITranslationContext context)
{
_typeNameTranslation = context.GetTranslationFor(Type);
TranslationSize += _typeNameTranslation.TranslationSize;
FormattingSize += _typeNameTranslation.FormattingSize;
}
private static IDictionary <ITranslation, ParameterSetTranslation> GetVariableDeclarations(
BlockExpression block,
ITranslationContext context)
{
if (block.Variables.Count == 0)
{
return(EmptyDictionary <ITranslation, ParameterSetTranslation> .Instance);
}
var variablesByType = block
.Variables
.Except(context.InlineOutputVariables)
.Except(context.JoinedAssignmentVariables)
.GroupBy(v => v.Type)
.ToArray();
if (variablesByType.Length == 0)
{
return(EmptyDictionary <ITranslation, ParameterSetTranslation> .Instance);
}
return(variablesByType.ToDictionary(
grp => (ITranslation)context.GetTranslationFor(grp.Key),
grp => ParameterSetTranslation.For(grp.ToList(), context)
.WithoutParentheses()
.WithoutTypeNames(context)));
}
public StandardCastTranslation(Expression cast, ITranslation castValueTranslation, ITranslationContext context)
: this(
cast.NodeType,
context.GetTranslationFor(cast.Type),
castValueTranslation)
{
}
public DefaultValueTranslation(
Expression defaultExpression,
ITranslationContext context,
bool allowNullKeyword = true)
{
Type = defaultExpression.Type;
if (Type == typeof(void))
{
IsEmpty = true;
return;
}
if (allowNullKeyword)
{
_typeCanBeNull = Type.CanBeNull();
if (_typeCanBeNull)
{
TranslationSize = _null.Length;
return;
}
}
_typeNameTranslation = context.GetTranslationFor(Type);
TranslationSize = _default.Length + _typeNameTranslation.TranslationSize + "()".Length;
FormattingSize = context.GetKeywordFormattingSize() + _typeNameTranslation.FormattingSize;
}
public FilteredExceptionClause(CatchBlock catchBlock, ITranslationContext context)
: base(catchBlock, context)
{
_filterTranslation = context.GetTranslationFor(catchBlock.Filter);
TranslationSize = base.TranslationSize + _filterTranslation.TranslationSize + 6;
FormattingSize = base.FormattingSize + _filterTranslation.FormattingSize;
}
private QuotedLambdaTranslation(UnaryExpression quotedLambda, ITranslationContext context)
{
var comment = ReadableExpression.Comment("Quoted to induce a closure:");
var quotedLambdaBlock = Expression.Block(comment, quotedLambda.Operand);
_quotedLambdaTranslation = context.GetTranslationFor(quotedLambdaBlock);
}
public IfElseTranslation(ConditionalExpression conditional, ITranslationContext context)
: base(
conditional,
GetCodeBlockTranslation(
context.GetTranslationFor(conditional.IfTrue),
withReturnKeyword: false),
context.GetTranslationFor(conditional.IfFalse),
context)
{
_isElseIf = IsElseIf(conditional);
if (_isElseIf == false)
{
IfFalseTranslation = GetCodeBlockTranslation(IfFalseTranslation, conditional.IfFalse.IsReturnable());
}
}
public static ITranslation For(ConstantExpression constant, ITranslationContext context)
{
if (context.Settings.ConstantExpressionValueFactory != null)
{
var userTranslation = context.Settings.ConstantExpressionValueFactory(constant.Type, constant.Value);
return((userTranslation == null)
? NullTranslation(constant.Type, context)
: FixedValueTranslation(userTranslation, constant.Type, context));
}
if (constant.Value == null)
{
return(NullTranslation(constant.Type, context));
}
if (constant.Type.IsEnum())
{
return(new EnumConstantTranslation(constant, context));
}
if (TryTranslateFromTypeCode(constant, context, out var translation))
{
return(translation);
}
var valueType = constant.Value.GetType();
if (valueType.IsPrimitive() || valueType.IsValueType())
{
return(FixedValueTranslation(constant.Value, valueType, context));
}
return(context.GetTranslationFor(valueType).WithNodeType(Constant));
}
public static ITranslation ForCreateDelegateCall(
ExpressionType nodeType,
MethodCallExpression createDelegateCall,
ITranslationContext context)
{
#if NET35
var subjectMethod = (MethodInfo)((ConstantExpression)createDelegateCall.Arguments.Last()).Value;
#else
// ReSharper disable once PossibleNullReferenceException
var subjectMethod = (MethodInfo)((ConstantExpression)createDelegateCall.Object).Value;
#endif
var subjectTranslation = subjectMethod.IsStatic
? context.GetTranslationFor(subjectMethod.DeclaringType)
: context.GetTranslationFor(createDelegateCall.Arguments.ElementAtOrDefault(1));
return new MethodGroupTranslation(nodeType, subjectTranslation, subjectMethod, context);
}
protected static ITranslation GetSubjectOrNull(
Expression subject,
MemberInfo member,
ITranslationContext context)
{
if (subject == null)
{
return(context.GetTranslationFor(member.DeclaringType));
}
if (SubjectIsCapturedInstance(subject, member))
{
return(null);
}
return(context.GetTranslationFor(subject));
}
private IndexAccessTranslation(
Expression subject,
ICollection <Expression> arguments,
ITranslationContext context)
{
_subject = context.GetTranslationFor(subject);
_parameters = new ParameterSetTranslation(arguments, context);
EstimatedSize = GetEstimatedSize();
}
public BlockStatementTranslation(Expression expression, ITranslationContext context)
{
NodeType = expression.NodeType;
Expression = expression;
_statementTranslation = context.GetTranslationFor(expression);
_statementIsUnterminated = StatementIsUnterminated(expression);
_writeBlankLineBefore = WriteBlankLineBefore();
EstimatedSize = _statementTranslation.EstimatedSize + 1;
}
public IfStatementTranslation(ConditionalExpression conditional, ITranslationContext context)
: base(
conditional,
GetCodeBlockTranslation(
context.GetTranslationFor(conditional.IfTrue),
withReturnKeyword: conditional.IfTrue.IsReturnable()),
context)
{
}
public static ITranslation For(TypeBinaryExpression typeIs, ITranslationContext context)
{
return(new TypeTestedTranslation(
TypeIs,
context.GetTranslationFor(typeIs.Expression),
" is ",
typeIs.TypeOperand,
context));
}
private IndexAccessTranslation(
Expression subject,
ICollection <Expression> arguments,
ITranslationContext context)
: this(
context.GetTranslationFor(subject),
ParameterSetTranslation.For(arguments, context))
{
}
public ShortCircuitingIfTranslation(ConditionalExpression conditional, ITranslationContext context)
: base(
conditional,
GetCodeBlockTranslation(
context.GetTranslationFor(conditional.IfTrue),
withReturnKeyword: true),
context.GetCodeBlockTranslationFor(conditional.IfFalse).WithoutBraces(),
context)
{
}
