public static void ReportUndeclaredFunction(this ICollection <Diagnostic> diagnostics, FunctionInvocationExpressionSyntax node, IEnumerable <TypeSymbol> argumentTypes)
{
var name = node.Name.ToStringIgnoringMacroReferences();
var argumentTypeList = string.Join(@", ", argumentTypes.Select(t => t.ToDisplayName()));
diagnostics.Report(node.GetTextSpanSafe(), DiagnosticId.UndeclaredFunction, name, argumentTypeList);
}
private BoundExpression BindFunctionInvocationExpression(FunctionInvocationExpressionSyntax syntax)
{
// Don't try to bind CompileShader function calls, for now.
if ((syntax.Name.Kind == SyntaxKind.IdentifierName) && ((IdentifierNameSyntax)syntax.Name).Name.ContextualKind == SyntaxKind.CompileShaderKeyword)
{
return(new BoundFunctionInvocationExpression(syntax,
syntax.ArgumentList.Arguments.Select(x => (BoundExpression) new BoundErrorExpression()).ToImmutableArray(),
OverloadResolutionResult <FunctionSymbolSignature> .None));
}
var name = syntax.Name;
var boundArguments = BindArgumentList(syntax.ArgumentList);
var argumentTypes = boundArguments.Select(a => a.Type).ToImmutableArray();
var anyErrorsInArguments = argumentTypes.Any(a => a.IsError());
if (anyErrorsInArguments)
{
return(new BoundFunctionInvocationExpression(syntax, boundArguments, OverloadResolutionResult <FunctionSymbolSignature> .None));
}
ContainerSymbol containerSymbol;
SyntaxToken actualName;
switch (name.Kind)
{
case SyntaxKind.IdentifierName:
containerSymbol = null;
actualName = ((IdentifierNameSyntax)name).Name;
break;
case SyntaxKind.QualifiedName:
containerSymbol = LookupContainer(((QualifiedNameSyntax)syntax.Name).Left);
actualName = ((QualifiedNameSyntax)name).Right.Name;
break;
default:
throw new InvalidOperationException();
}
var result = (containerSymbol?.Binder ?? this).LookupFunction(actualName, argumentTypes);
if (result.Best == null)
{
if (result.Selected == null)
{
Diagnostics.ReportUndeclaredFunction(syntax, argumentTypes);
return(new BoundErrorExpression());
}
var symbol1 = result.Selected.Signature.Symbol;
var symbol2 = result.Candidates.First(c => !c.Signature.Symbol.Equals(symbol1)).Signature.Symbol;
Diagnostics.ReportAmbiguousInvocation(syntax.GetTextSpanSafe(), symbol1, symbol2, argumentTypes);
}
var convertedArguments = boundArguments.Select((a, i) => BindArgument(a, result, i, syntax.ArgumentList.Arguments[i].GetTextSpanSafe())).ToImmutableArray();
return(new BoundFunctionInvocationExpression(syntax, convertedArguments, result));
}
public static void ReportUndeclaredFunction(this ICollection<Diagnostic> diagnostics, FunctionInvocationExpressionSyntax node, IEnumerable<TypeSymbol> argumentTypes)
{
var name = node.Name.ToStringIgnoringMacroReferences();
var argumentTypeList = string.Join(@", ", argumentTypes.Select(t => t.ToDisplayName()));
diagnostics.Report(node.GetTextSpanSafe(), DiagnosticId.UndeclaredFunction, name, argumentTypeList);
}
