public PartialExpression TryResolveTypeMember(DataType dt, AstIdentifier id, int?typeParamCount, AstExpression qualifier, Expression instance)
{
var result = NameResolver.TryGetTypeMemberCached(dt, id.Symbol, typeParamCount);
if (result == null ||
dt.Methods.Count == 1 && dt.Methods[0].GenericType == dt)
{
return(null);
}
if (dt.IsFlattenedDefinition)
{
return(PartialError(id.Source, ErrorCode.I0000, "Invalid member-access on non-parameterized type"));
}
var methods = result as IReadOnlyList <Method>;
if (methods != null)
{
return(new PartialMethodGroup(id.Source, instance, !AllowStaticContext(qualifier, instance), methods));
}
var literal = result as Literal;
if (literal != null)
{
if (AllowStaticContext(qualifier, instance))
{
ILVerifier.VerifyConstUsage(id.Source, literal, Function);
return(new PartialValue(new Constant(id.Source, literal.ReturnType, literal.Value is AstExpression
? Compiler.CompileConstant((AstExpression)literal.Value, literal.DeclaringType, literal.ReturnType).Value
: literal.Value)));
}
return(PartialError(id.Source, ErrorCode.E0000, literal.Quote() + " is a constant -- qualify with the type name"));
}
var field = result as Field;
if (field != null)
{
if (field.IsStatic)
{
if (instance != null)
{
return(AllowStaticContext(qualifier, instance)
? new PartialField(id.Source, field, null)
: PartialError(id.Source, ErrorCode.E3117, field.Quote() + " is static -- qualify with the type name"));
}
}
else
{
if (instance == null)
{
return(qualifier == null && TryResolveDataTypeIdentifier(id) == field.ReturnType
? new PartialType(id.Source, field.ReturnType)
: PartialError(id.Source, ErrorCode.E3118, field.Quote() + " is non-static and cannot be accessed from a static context"));
}
}
return(new PartialField(id.Source, field, instance));
}
var ev = result as Event;
if (ev != null)
{
if (ev.IsStatic)
{
if (instance != null)
{
return(AllowStaticContext(qualifier, instance)
? new PartialEvent(id.Source, ev, null)
: PartialError(id.Source, ErrorCode.E3119, ev.Quote() + " is static -- qualify with the type name"));
}
}
else
{
if (instance == null)
{
return(qualifier == null && TryResolveDataTypeIdentifier(id) == ev.ReturnType
? new PartialType(id.Source, ev.ReturnType)
: PartialError(id.Source, ErrorCode.E3120, ev.Quote() + " is non-static and cannot be accessed from a static context"));
}
}
return(new PartialEvent(id.Source, ev, instance));
}
var prop = result as Property;
if (prop != null)
{
if (prop.IsStatic)
{
if (instance != null)
{
return(AllowStaticContext(qualifier, instance)
? new PartialProperty(id.Source, prop, null)
: PartialError(id.Source, ErrorCode.E3121, prop.Quote() + " is static -- qualify with the type name"));
}
}
else
{
if (instance == null)
{
return(qualifier == null && TryResolveDataTypeIdentifier(id) == prop.ReturnType
? new PartialType(id.Source, prop.ReturnType)
: PartialError(id.Source, ErrorCode.E3122, prop.Quote() + " is non-static and cannot be accessed from a static context"));
}
}
return(new PartialProperty(id.Source, prop, instance));
}
var genericParam = result as GenericParameterType;
if (genericParam != null)
{
return(qualifier == null ?
new PartialType(id.Source, genericParam) :
null);
}
var innerType = result as DataType;
var innerBlock = result as Block;
if (innerType != null || innerBlock != null)
{
return(AllowStaticContext(qualifier, instance)
? (innerType != null
? (PartialExpression) new PartialType(id.Source, innerType)
: new PartialBlock(id.Source, innerBlock))
: PartialError(id.Source, ErrorCode.E0000, "Cannot reference block or type " + result.Quote() + " through an expression -- qualify with the type name"));
}
return(result is List <object>
?PartialError(id.Source, ErrorCode.E0000, (dt + "." + id.GetParameterizedSymbol(typeParamCount)).Quote() + " is ambiguous. This can be resolved using an explicit cast to a more specific interface type")
: result as PartialExpression ??
PartialError(id.Source, ErrorCode.I0000, "Unknown type member: " + result));
}
public Expression CompileImport(AstImport import)
{
if (import.Arguments == null)
{
var c = Compiler.CompileConstant(import.Importer, Namescope, Essentials.String);
if (c.IsInvalid)
{
return(c);
}
var filename = c.ConstantString;
Compiler.Disk.GetFullPath(import.Importer.Source, ref filename);
return(Compiler.BundleBuilder.AddBundleFile(import.Importer.Source, filename));
}
// TODO: Remove deprecated legacy code below
var importer = Compiler.TryCompileSuffixedObject(Namescope, import.Importer, "Importer", import.Arguments);
if (importer == null)
{
return(Expression.Invalid);
}
if (importer.ReturnType.Base == null ||
importer.ReturnType.Base.MasterDefinition != Essentials.Importer_T)
{
return(Error(importer.Source, ErrorCode.E0000, "Importer must be a type derived directly from " + Essentials.Importer_T.Quote()));
}
ILVerifier.VerifyConstUsage(import.Source, importer.Constructor, Function);
Importer plugin;
if (!Compiler.Plugins.TryGetImporter(importer.ReturnType.MasterDefinition, out plugin))
{
return(Error(import.Importer.Source, ErrorCode.E2048, "Unsupported importer " + importer.ReturnType.Quote()));
}
PathFlags flags = 0;
var isMetaProperty = MetaProperty != null;
if (isMetaProperty)
{
flags |= PathFlags.WarnIfNonExistingPath;
}
if (import.Source.IsUnknown || Path.GetExtension(import.Source.FullPath).ToUpperInvariant() != ".UNO")
{
flags |= PathFlags.AllowAbsolutePath;
}
if (!Compiler.ExpandFilenames(importer, flags))
{
if (isMetaProperty)
{
for (int i = 0; i < importer.Arguments.Length; i++)
{
if (importer.Constructor.Parameters[i].HasAttribute(Essentials.FilenameAttribute))
{
var c = importer.Arguments[i] as Constant;
if (c != null)
{
var src = c.Source;
var filename = c.Value as string;
AddReqStatement(new ReqFile(src, filename));
}
}
}
}
return(Expression.Invalid);
}
var types = importer.ReturnType.IsGenericParameterization ?
importer.ReturnType.GenericArguments :
null;
return(CompileImplicitCast(
import.Source,
importer.ReturnType.Base.GenericArguments[0],
plugin.Import(
new ImportContext(
import.Source,
types,
importer.GetArgumentValues()))));
}