public InvocationTypeInferenceRules() : base(CompilerContext.Current)
{
var Array_EnumerableConstructor = Map(Methods.Of <IEnumerable, Array>(Builtins.array));
var Array_TypedEnumerableConstructor = Map(Methods.Of <Type, IEnumerable, Array>(Builtins.array));
var MultiDimensionalArray_TypedConstructor = Map(Methods.Of <Type, int[], Array>(Builtins.matrix));
RegisterTypeInferenceRuleFor(
MultiDimensionalArray_TypedConstructor,
(invocation, method) =>
{
IType type = TypeSystemServices.GetReferencedType(invocation.Arguments[0]);
if (type == null)
{
return(null);
}
return(type.MakeArrayType(invocation.Arguments.Count - 1));
});
RegisterTypeInferenceRuleFor(
Array_EnumerableConstructor,
(invocation, method) =>
{
IType enumeratorItemType = TypeSystemServices.GetEnumeratorItemType(TypeSystemServices.GetExpressionType(invocation.Arguments[0]));
if (TypeSystemServices.ObjectType == enumeratorItemType)
{
return(null);
}
invocation.Target.Entity = Array_TypedEnumerableConstructor;
invocation.ExpressionType = Array_TypedEnumerableConstructor.ReturnType;
invocation.Arguments.Insert(0, CodeBuilder.CreateReference(enumeratorItemType));
return(enumeratorItemType.MakeArrayType(1));
});
}
public static IType ArrayOfTypeReferencedByFirstArgument(MethodInvocationExpression invocation, IMethod method)
{
var type = TypeSystemServices.GetReferencedType(invocation.Arguments[0]);
if (type == null)
{
return(null);
}
return(type.MakeArrayType(1));
}
public static IType TypeReferencedBySecondArgument(MethodInvocationExpression invocation, IMethod method)
{
return(TypeSystemServices.GetReferencedType(invocation.Arguments[1]));
}