internal static IConstantValue ConvertConstantValue(
ITypeReference targetType, AstNode expression,
IUnresolvedTypeDefinition parentTypeDefinition, IUnresolvedMethod parentMethodDefinition, UsingScope parentUsingScope)
{
ConstantValueBuilder b = new ConstantValueBuilder(false);
ConstantExpression c = expression.AcceptVisitor(b, null);
if (c == null)
return new ErrorConstantValue(targetType);
PrimitiveConstantExpression pc = c as PrimitiveConstantExpression;
if (pc != null && pc.Type == targetType) {
// Save memory by directly using a SimpleConstantValue.
return new SimpleConstantValue(targetType, pc.Value);
}
// cast to the desired type
return new ConstantCast(targetType, c);
}
IConstantValue ConvertConstantValue(ITypeReference targetType, AstNode expression)
{
ConstantValueBuilder b = new ConstantValueBuilder();
b.convertVisitor = this;
ConstantExpression c = expression.AcceptVisitor(b, null);
if (c == null)
{
return(null);
}
PrimitiveConstantExpression pc = c as PrimitiveConstantExpression;
if (pc != null && pc.Type == targetType)
{
// Save memory by directly using a SimpleConstantValue.
return(new SimpleConstantValue(targetType, pc.Value));
}
// cast to the desired type
return(new CSharpConstantValue(new ConstantCast(targetType, c), usingScope, currentTypeDefinition));
}
IConstantValue ConvertAttributeArgument(Expression expression)
{
ConstantValueBuilder b = new ConstantValueBuilder();
b.convertVisitor = this;
b.isAttributeArgument = true;
ConstantExpression c = expression.AcceptVisitor(b, null);
if (c == null)
{
return(null);
}
PrimitiveConstantExpression pc = c as PrimitiveConstantExpression;
if (pc != null)
{
// Save memory by directly using a SimpleConstantValue.
return(new SimpleConstantValue(pc.Type, pc.Value));
}
else
{
return(new CSharpConstantValue(c, usingScope, currentTypeDefinition));
}
}
