public BoundConversionExpression(BoundExpression expression, TypeSymbol type, Conversion conversion)
: base(BoundNodeKind.ConversionExpression)
{
Expression = expression;
Type = type;
Conversion = conversion;
}
public BoundUnaryExpression(SyntaxNode syntax, BoundExpression expression, UnaryOperatorKind operatorKind, TypeSymbol expressionType)
: base(BoundNodeKind.UnaryExpression, syntax)
{
Expression = expression;
OperatorKind = operatorKind;
Type = expressionType;
}
public BinaryOperatorSignature(BinaryOperatorKind kind, TypeSymbol returnType, TypeSymbol leftParameterType, TypeSymbol rightParameterType)
{
Kind = kind;
ReturnType = returnType;
_leftParameterType = leftParameterType;
_rightParameterType = rightParameterType;
}
public BoundVariableDeclaration(VariableDeclarationStatementSyntax syntax, LocalVariableSymbol variableSymbol, TypeSymbol declaredType, BoundExpression initializerOpt)
: base(BoundNodeKind.VariableDeclaration, syntax)
{
VariableSymbol = variableSymbol;
DeclaredType = declaredType;
InitializerOpt = initializerOpt;
}
public BoundNumericConstructorInvocationExpression(NumericConstructorInvocationExpressionSyntax syntax, TypeSymbol type, ImmutableArray<BoundExpression> arguments, OverloadResolutionResult<FunctionSymbolSignature> result)
: base(BoundNodeKind.NumericConstructorInvocationExpression)
{
Syntax = syntax;
Type = type;
Arguments = arguments;
Result = result;
}
internal ParameterSymbol(string name, string documentation, Symbol parent, TypeSymbol valueType, ParameterDirection direction = ParameterDirection.In)
: base(SymbolKind.Parameter, name, documentation, parent, valueType)
{
if (valueType == null)
throw new ArgumentNullException(nameof(valueType));
Direction = direction;
}
public BoundBinaryExpression(BinaryExpressionSyntax syntax, BinaryOperatorKind operatorKind, BoundExpression left, BoundExpression right, TypeSymbol type)
: base(BoundNodeKind.BinaryExpression, syntax)
{
OperatorKind = operatorKind;
Left = left;
Right = right;
Type = type;
}
public BoundVariableDeclaration(VariableSymbol variableSymbol, TypeSymbol declaredType, ImmutableArray<BoundVariableQualifier> qualifiers, BoundInitializer initializerOpt)
: base(BoundNodeKind.VariableDeclaration)
{
VariableSymbol = variableSymbol;
DeclaredType = declaredType;
Qualifiers = qualifiers;
InitializerOpt = initializerOpt;
}
private static IEnumerable<FunctionDeclarationSymbol> Create1(string name, string documentation, TypeSymbol[] types)
{
return types.Select(type => new FunctionDeclarationSymbol(
name, documentation, type,
f => new []
{
new ParameterSymbol("value", "The specified value.", f, type)
}));
}
internal ArraySymbol(TypeSymbol valueType, int? dimension)
: base(SymbolKind.Array, $"{valueType.FullName}[{dimension?.ToString() ?? string.Empty}]", "Array of " + valueType.Name, null)
{
foreach (var member in CreateArrayMembers(this, valueType))
AddMember(member);
ValueType = valueType;
Dimension = dimension;
}
internal static Conversion Classify(TypeSymbol sourceType, TypeSymbol targetType)
{
if (sourceType == targetType)
return Identity;
throw new NotImplementedException();
return None;
}
private static OverloadResolutionResult<UnaryOperatorSignature> ResolveOverloads(UnaryOperatorKind kind, TypeSymbol operandType)
{
var builtInSignatures = GetBuiltInSignatures(kind);
if (TypeBuiltIn(operandType))
return OverloadResolution.Perform(builtInSignatures, operandType);
return OverloadResolutionResult<UnaryOperatorSignature>.None;
}
private static OverloadResolutionResult<BinaryOperatorSignature> ResolveOverloads(BinaryOperatorKind kind, TypeSymbol leftOperandType, TypeSymbol rightOperandType)
{
var builtInSignatures = GetBuiltInSignatures(kind);
if (BothTypesBuiltIn(leftOperandType, rightOperandType))
return OverloadResolution.Perform(builtInSignatures, leftOperandType, rightOperandType);
return OverloadResolutionResult<BinaryOperatorSignature>.None;
}
internal static bool HasExplicitConversionTo(this TypeSymbol left, TypeSymbol right)
{
if (left.Equals(right))
return true;
if (left.IsIntrinsicNumericType() && right.Kind == SymbolKind.Struct)
return true;
return left.HasImplicitConversionTo(right);
}
internal InvocableSymbol(SymbolKind kind, string name, string documentation, Symbol parent, TypeSymbol returnType, Func<InvocableSymbol, IEnumerable<ParameterSymbol>> lazyParameters = null)
: base(kind, name, documentation, parent)
{
if (returnType == null)
throw new ArgumentNullException(nameof(returnType));
_parameters = new List<ParameterSymbol>();
if (lazyParameters != null)
foreach (var parameter in lazyParameters(this))
AddParameter(parameter);
ReturnType = returnType;
}
internal static Conversion Classify(TypeSymbol sourceType, TypeSymbol targetType, ParameterDirection direction)
{
if (sourceType.Equals(targetType))
return Identity;
// First, make sure we have a conversion from argument to parameter.
switch (direction)
{
case ParameterDirection.In:
if (!sourceType.HasImplicitConversionTo(targetType))
return sourceType.HasExplicitConversionTo(targetType) ? Explicit : None;
break;
case ParameterDirection.Out:
if (!targetType.HasImplicitConversionTo(sourceType))
return None;
break;
case ParameterDirection.Inout:
if (!sourceType.HasImplicitConversionTo(targetType) || !targetType.HasImplicitConversionTo(sourceType))
return None;
break;
default:
throw new ArgumentOutOfRangeException();
}
var conversionType = ConversionTypes.None;
var numericTargetType = targetType as IntrinsicNumericTypeSymbol;
var numericSourceType = sourceType as IntrinsicNumericTypeSymbol;
if (numericTargetType != null && numericSourceType != null)
{
conversionType |= ClassifyTypeConversion(numericSourceType, numericTargetType);
conversionType |= ClassifyDimensionConversion(numericSourceType, numericTargetType);
}
// TODO: Non-numeric implicit conversions.
return new Conversion(true, false, false, conversionType);
}
internal static int Compare(TypeSymbol xType, Conversion xConversion, TypeSymbol yType, Conversion yConversion)
{
if (xConversion.IsIdentity && !yConversion.IsIdentity ||
xConversion.IsImplicit && yConversion.IsExplicit)
return -1;
if (!xConversion.IsIdentity && yConversion.IsIdentity ||
xConversion.IsExplicit && yConversion.IsImplicit)
return 1;
var xTypeToYType = Classify(xType, yType);
var yTypeToXType = Classify(yType, xType);
if (xTypeToYType.IsImplicit && yTypeToXType.IsExplicit)
return -1;
if (xTypeToYType.IsExplicit && yTypeToXType.IsImplicit)
return 1;
//var xKnown = xType.GetKnownType();
//var yKnown = yType.GetKnownType();
//if (xKnown != null && yKnown != null)
//{
// var x = xKnown.Value;
// var y = yKnown.Value;
// if (x.IsSignedNumericType() && y.IsUnsignedNumericType())
// return -1;
// if (x.IsUnsignedNumericType() && y.IsSignedNumericType())
// return 1;
//}
return 0;
}
private static IEnumerable<FunctionSymbol> Create1(
string name, string documentation, TypeSymbol[] types,
string parameterName, string parameterDocumentation,
params TypeSymbol[] overrideReturnTypes)
{
if (overrideReturnTypes.Length == 0)
overrideReturnTypes = null;
else if (overrideReturnTypes.Length == 1)
overrideReturnTypes = Enumerable.Repeat(overrideReturnTypes[0], types.Length).ToArray();
return types.Select((type, i) => new FunctionSymbol(
name, documentation, null, overrideReturnTypes?[i] ?? type,
f => new []
{
new ParameterSymbol(parameterName ?? "value", parameterDocumentation ?? "The specified value.", f, type)
}));
}
private static FunctionSymbol Create0(string name, string documentation, TypeSymbol returnType)
{
return new FunctionSymbol(
name, documentation, null, returnType,
f => new ParameterSymbol[0]);
}
public static void ReportImplicitTruncation(this ICollection<Diagnostic> diagnostics, TextSpan span, TypeSymbol sourceType, TypeSymbol destinationType)
{
diagnostics.Report(span, DiagnosticId.ImplicitTruncation, sourceType.Name, destinationType.Name);
}
public static void ReportAmbiguousUnaryOperator(this ICollection<Diagnostic> diagnostics, SyntaxToken operatorToken, TypeSymbol type)
{
var operatorName = operatorToken.Text;
var typeName = type.ToDisplayName();
diagnostics.Report(operatorToken.Span, DiagnosticId.AmbiguousUnaryOperator, operatorName, typeName);
}
public static void ReportAmbiguousBinaryOperator(this ICollection<Diagnostic> diagnostics, SyntaxToken operatorToken, TypeSymbol leftType, TypeSymbol rightType)
{
var operatorName = operatorToken.Text;
var leftTypeName = leftType.ToDisplayName();
var rightTypeName = rightType.ToDisplayName();
diagnostics.Report(operatorToken.Span, DiagnosticId.AmbiguousBinaryOperator, operatorName, leftTypeName, rightTypeName);
}
public static void ReportCannotConvert(this ICollection<Diagnostic> diagnostics, TextSpan span, TypeSymbol sourceType, TypeSymbol targetType)
{
var sourceTypeName = sourceType.ToDisplayName();
var targetTypeName = targetType.ToDisplayName();
diagnostics.Report(span, DiagnosticId.CannotConvert, sourceTypeName, targetTypeName);
}
public static void ReportUndeclaredIndexer(this ICollection<Diagnostic> diagnostics, ElementAccessExpressionSyntax node, TypeSymbol declaringType, IEnumerable<TypeSymbol> argumentTypes)
{
var declaringTypeName = declaringType.ToDisplayName();
var argumentTypeNames = string.Join(@", ", argumentTypes.Select(t => t.ToDisplayName()));
diagnostics.Report(node.GetTextSpanRoot(), DiagnosticId.UndeclaredIndexer, declaringTypeName, argumentTypeNames);
}
public static void ReportUndeclaredMethod(this ICollection<Diagnostic> diagnostics, MethodInvocationExpressionSyntax node, TypeSymbol declaringType, IEnumerable<TypeSymbol> argumentTypes)
{
var name = node.Name.ValueText;
var declaringTypeName = declaringType.ToDisplayName();
var argumentTypeNames = string.Join(@", ", argumentTypes.Select(t => t.ToDisplayName()));
diagnostics.Report(node.GetTextSpanRoot(), DiagnosticId.UndeclaredMethod, declaringTypeName, name, argumentTypeNames);
}
public SourceFunctionDefinitionSymbol(FunctionDefinitionSyntax syntax, TypeSymbol returnType, Func<FunctionSymbol, IEnumerable<ParameterSymbol>> lazyParameters)
: base(syntax.Name.GetName(), string.Empty, returnType, lazyParameters)
{
Syntax = syntax;
}
public bool IsSymbol(TypeSymbol symbol, string symbolName)
{
return (((ISymbolTable)this).FindSymbol(symbolName, null) == symbol);
}
private static IEnumerable<FunctionSymbol> Create4(
string name, string documentation, TypeSymbol[] types,
string parameterName1, string parameterDocumentation1,
string parameterName2, string parameterDocumentation2,
string parameterName3, string parameterDocumentation3,
string parameterName4, string parameterDocumentation4,
TypeSymbol overrideReturnType = null,
ParameterDirection overrideParameterDirection4 = ParameterDirection.In)
{
return types.Select(type => new FunctionSymbol(
name, documentation, null, overrideReturnType ?? type,
f => new[]
{
new ParameterSymbol(parameterName1, parameterDocumentation1, f, type),
new ParameterSymbol(parameterName2, parameterDocumentation2, f, type),
new ParameterSymbol(parameterName3, parameterDocumentation3, f, type),
new ParameterSymbol(parameterName4, parameterDocumentation4, f, type, overrideParameterDirection4)
}));
}
public MethodDeclarationSymbol(string name, string documentation, TypeSymbol parent, TypeSymbol returnType, Func<MethodSymbol, IEnumerable<ParameterSymbol>> lazyParameters)
: base(SymbolKind.MethodDeclaration, name, documentation, parent, returnType, lazyParameters)
{
}
public static void ReportUndeclaredField(this ICollection<Diagnostic> diagnostics, FieldAccessExpressionSyntax node, TypeSymbol type)
{
var typeName = type.ToDisplayName();
var propertyName = node.Name.ValueText;
diagnostics.Report(node.GetTextSpanSafe(), DiagnosticId.UndeclaredField, typeName, propertyName);
}