internal override Expression ResolveTypes(ParserContext parser, TypeResolver typeResolver)
{
int argCount = this.ArgTypes.Length;
this.ResolvedArgTypes = new ResolvedType[argCount];
for (int i = 0; i < argCount; ++i)
{
ResolvedType argType = typeResolver.ResolveType(this.ArgTypes[i]);
this.ResolvedArgTypes[i] = argType;
// TODO: this variableId will not always be non-null when the argument in a lambda is used by a
// closure of another lambda inside the lambda. I'll have to change my strategy here. Possibly
// tracking the VariableId's as another Args field.
VariableId variableId = this.VariableScope.GetVarId(this.Args[i]);
variableId.ResolvedType = argType;
}
foreach (Executable ex in this.Code)
{
ex.ResolveTypes(parser, typeResolver);
}
// TODO: how do you define the lambda return type in Acrylic? Snoop the nested returns, maybe?
ResolvedType returnType = ResolvedType.ANY;
this.ResolvedType = ResolvedType.GetFunctionType(returnType, this.ResolvedArgTypes, 0);
return(this);
}
internal override Expression ResolveTypes(ParserContext parser, TypeResolver typeResolver)
{
ResolvedType returnType = this.FunctionDefinition.ResolvedReturnType;
ResolvedType[] argTypes = this.FunctionDefinition.ResolvedArgTypes;
int optionalCount = argTypes.Length == 0 || this.FunctionDefinition.DefaultValues[argTypes.Length - 1] == null
? 0
: this.FunctionDefinition.DefaultValues.Where(e => e != null).Count();
this.ResolvedType = ResolvedType.GetFunctionType(returnType, argTypes, optionalCount);
return(this);
}
internal override Expression ResolveTypes(ParserContext parser, TypeResolver typeResolver)
{
this.ResolvedType = ResolvedType.GetFunctionType(this.FunctionDefinition);
return(this);
}
private Expression BuildPrimitiveMethodWithOptionalArgs(ResolvedType returnType, int optionalCount, params ResolvedType[] argTypes)
{
return(new PrimitiveMethodReference(this.Root, this.DotToken, this.FieldToken, ResolvedType.GetFunctionType(returnType, argTypes, optionalCount), this.Owner));
}
internal override Expression ResolveTypes(ParserContext parser, TypeResolver typeResolver)
{
this.Root.ResolveTypes(parser, typeResolver);
string field = this.FieldToken.Value;
if (this.Root is EnumReference)
{
throw new System.NotImplementedException();
}
ResolvedType rootType = this.Root.ResolvedType;
// TODO: all of this needs to be localized.
switch (rootType.Category)
{
case ResolvedTypeCategory.NULL:
throw new ParserException(this.DotToken, "Cannot dereference a field from null.");
case ResolvedTypeCategory.ANY:
// ¯\_(ツ)_/¯
this.ResolvedType = ResolvedType.ANY;
return(this);
case ResolvedTypeCategory.INTEGER:
throw new ParserException(this.DotToken, "Integers do not have any fields.");
case ResolvedTypeCategory.FLOAT:
throw new ParserException(this.DotToken, "Floating point decimals do not have any fields.");
case ResolvedTypeCategory.BOOLEAN:
throw new ParserException(this.DotToken, "Booleans do not have any fields.");
case ResolvedTypeCategory.STRING:
switch (field)
{
case "length":
this.ResolvedType = ResolvedType.INTEGER;
if (this.Root is StringConstant)
{
return(new IntegerConstant(this.FirstToken, ((StringConstant)this.Root).Value.Length, this.Owner));
}
return(this);
case "contains": return(BuildPrimitiveMethod(ResolvedType.BOOLEAN, ResolvedType.STRING));
case "endsWith": return(BuildPrimitiveMethod(ResolvedType.BOOLEAN, ResolvedType.STRING));
case "indexOf": return(BuildPrimitiveMethod(ResolvedType.INTEGER, ResolvedType.STRING));
case "lower": return(BuildPrimitiveMethod(ResolvedType.STRING));
case "ltrim": return(BuildPrimitiveMethod(ResolvedType.STRING));
case "replace": return(BuildPrimitiveMethod(ResolvedType.STRING, ResolvedType.STRING, ResolvedType.STRING));
case "reverse": return(BuildPrimitiveMethod(ResolvedType.STRING));
case "rtrim": return(BuildPrimitiveMethod(ResolvedType.STRING));
case "split": return(BuildPrimitiveMethod(ResolvedType.ListOrArrayOf(ResolvedType.STRING), ResolvedType.STRING));
case "startsWith": return(BuildPrimitiveMethod(ResolvedType.BOOLEAN, ResolvedType.STRING));
case "trim": return(BuildPrimitiveMethod(ResolvedType.STRING));
case "upper": return(BuildPrimitiveMethod(ResolvedType.STRING));
// common mistakes
case "join":
throw new ParserException(this.DotToken, "Strings do not have a .join(list) method. Did you mean to do list.join(string)?");
case "size":
throw new ParserException(this.DotToken, "Strings do not have a .size() method. Did you mean to use .length?");
default:
throw new ParserException(this.DotToken, "Strings do not have that method.");
}
case ResolvedTypeCategory.LIST:
ResolvedType itemType = rootType.ListItemType;
switch (field)
{
case "length":
this.ResolvedType = ResolvedType.INTEGER;
return(this);
case "filter":
case "map":
if (this.CompilationScope.IsStaticallyTyped)
{
// TODO: for Acrylic, this needs to have a way to indicate that resolution should be attempted
// again once the function return type is known.
throw new System.NotImplementedException();
}
this.ResolvedType = ResolvedType.ANY;
return(this);
case "add": return(BuildPrimitiveMethod(ResolvedType.VOID, itemType));
case "choice": return(BuildPrimitiveMethod(ResolvedType.VOID));
case "clear": return(BuildPrimitiveMethod(ResolvedType.VOID));
case "clone": return(BuildPrimitiveMethod(rootType));
case "concat": return(BuildPrimitiveMethod(rootType, rootType));
case "contains": return(BuildPrimitiveMethod(ResolvedType.BOOLEAN, itemType));
case "insert": return(BuildPrimitiveMethod(ResolvedType.VOID, ResolvedType.INTEGER, itemType));
case "join": return(BuildPrimitiveMethodWithOptionalArgs(ResolvedType.STRING, 1, ResolvedType.STRING));
case "pop": return(BuildPrimitiveMethod(itemType));
case "remove": return(BuildPrimitiveMethod(ResolvedType.VOID, ResolvedType.INTEGER));
case "reverse": return(BuildPrimitiveMethod(ResolvedType.VOID));
case "shuffle": return(BuildPrimitiveMethod(ResolvedType.VOID));
case "sort": return(BuildPrimitiveMethod(ResolvedType.VOID));
// common mistakes
case "count":
case "size":
throw new ParserException(this.DotToken, "Lists do not have a ." + this.FieldToken.Value + "() method. Did you mean to use .length?");
default:
throw new ParserException(this.DotToken, "Lists do not have that method.");
}
case ResolvedTypeCategory.DICTIONARY:
ResolvedType keyType = rootType.DictionaryKeyType;
ResolvedType valueType = rootType.DictionaryValueType;
switch (field)
{
case "length":
this.ResolvedType = ResolvedType.INTEGER;
return(this);
case "clear": return(BuildPrimitiveMethod(ResolvedType.VOID));
case "clone": return(BuildPrimitiveMethod(rootType));
case "contains": return(BuildPrimitiveMethod(ResolvedType.BOOLEAN, keyType));
case "get": return(BuildPrimitiveMethodWithOptionalArgs(valueType, 1, keyType, valueType));
case "keys": return(BuildPrimitiveMethod(ResolvedType.ListOrArrayOf(keyType)));
case "merge": return(BuildPrimitiveMethod(ResolvedType.VOID, rootType));
case "remove": return(BuildPrimitiveMethod(ResolvedType.VOID, keyType));
case "values": return(BuildPrimitiveMethod(ResolvedType.ListOrArrayOf(valueType)));
default:
throw new ParserException(this.DotToken, "Dictionaries do not have that field.");
}
case ResolvedTypeCategory.CLASS_DEFINITION:
throw new ParserException(this.DotToken, "Class definitions do not have that field.");
case ResolvedTypeCategory.FUNCTION_POINTER:
switch (field)
{
case "invoke":
return(BuildPrimitiveMethod(ResolvedType.ANY, ResolvedType.ListOrArrayOf(ResolvedType.ANY)));
default:
throw new ParserException(this.DotToken, "Fucntions do not have that field.");
}
case ResolvedTypeCategory.INSTANCE:
FieldDefinition fieldDef = rootType.ClassTypeOrReference.GetField(field, true);
if (fieldDef != null)
{
if (!Node.IsAccessAllowed(this, fieldDef))
{
ClassDefinition cd = fieldDef.ClassOwner;
throw new ParserException(FieldToken, "The field '" + cd.NameToken.Value + "." + this.FieldToken.Value + "' is not accessible from here due to its access scope.");
}
this.ResolvedType = fieldDef.ResolvedFieldType;
return(this);
}
FunctionDefinition funcDef = rootType.ClassTypeOrReference.GetMethod(field, true);
if (funcDef != null)
{
this.ResolvedType = ResolvedType.GetFunctionType(funcDef);
return(this);
}
throw new ParserException(this.DotToken, "The class '" + rootType.ClassTypeOrReference.NameToken.Value + "' does not have a field called '" + field + "'.");
default:
throw new ParserException(this.DotToken, "This field does not exist.");
}
}
