// Miguel de Icaza (miguel@ximian.com)
// Marek Safar (marek.safar@seznam.cz)
//
-// (C) 2001 Ximian, Inc.
+// Copyright 2001 Ximian, Inc.
+// Copyright 2003-2008 Novell, Inc.
//
using System;
using System.Collections;
namespace Mono.CSharp {
public class RootNamespace : Namespace {
+ //
+ // Points to Mono's GetNamespaces method, an
+ // optimization when running on Mono to fetch all the
+ // namespaces in an assembly
+ //
static MethodInfo get_namespaces_method;
string alias_name;
- Assembly referenced_assembly;
+ protected Assembly [] referenced_assemblies;
Hashtable all_namespaces;
- static Hashtable root_namespaces;
+ static ListDictionary root_namespaces;
public static GlobalRootNamespace Global;
static RootNamespace ()
public static void Reset ()
{
- root_namespaces = new Hashtable ();
+ root_namespaces = new ListDictionary ();
Global = new GlobalRootNamespace ();
root_namespaces ["global"] = Global;
}
- protected RootNamespace (string alias_name, Assembly assembly)
+ protected RootNamespace (string alias_name)
: base (null, String.Empty)
{
this.alias_name = alias_name;
- referenced_assembly = assembly;
+ referenced_assemblies = new Assembly [0];
all_namespaces = new Hashtable ();
all_namespaces.Add ("", this);
+ }
+
+ public void AddAssemblyReference (Assembly a)
+ {
+ foreach (Assembly assembly in referenced_assemblies) {
+ if (a == assembly)
+ return;
+ }
- if (referenced_assembly != null)
- ComputeNamespaces (this.referenced_assembly);
+ // How to test whether attribute exists without loading the assembly :-(
+#if NET_2_1
+ const string SystemCore = "System.Core, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e";
+#else
+ const string SystemCore = "System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089";
+#endif
+ if (TypeManager.extension_attribute_type == null &&
+ a.FullName == SystemCore) {
+ TypeManager.extension_attribute_type = a.GetType("System.Runtime.CompilerServices.ExtensionAttribute");
+ }
+
+ int top = referenced_assemblies.Length;
+ Assembly [] n = new Assembly [top + 1];
+ referenced_assemblies.CopyTo (n, 0);
+ n [top] = a;
+ referenced_assemblies = n;
}
- public static void DefineRootNamespace (string name, Assembly assembly)
+ public static void DefineRootNamespace (string alias, Assembly assembly)
{
- if (name == "global") {
+ if (alias == "global") {
NamespaceEntry.Error_GlobalNamespaceRedefined (Location.Null);
return;
}
- RootNamespace retval = GetRootNamespace (name);
- if (retval == null || retval.referenced_assembly != assembly)
- root_namespaces [name] = new RootNamespace (name, assembly);
+
+ RootNamespace retval = GetRootNamespace (alias);
+ if (retval == null) {
+ retval = new RootNamespace (alias);
+ root_namespaces.Add (alias, retval);
+ }
+
+ retval.AddAssemblyReference (assembly);
}
public static RootNamespace GetRootNamespace (string name)
return (RootNamespace) root_namespaces [name];
}
+ public static void ComputeNamespaces ()
+ {
+ foreach (RootNamespace rn in root_namespaces.Values) {
+ foreach (Assembly a in rn.referenced_assemblies) {
+ try {
+ rn.ComputeNamespaces (a);
+ } catch (TypeLoadException e) {
+ Report.Error (11, Location.Null, e.Message);
+ } catch (System.IO.FileNotFoundException) {
+ Report.Error (12, Location.Null, "An assembly `{0}' is used without being referenced",
+ a.FullName);
+ }
+ }
+ }
+ }
+
public virtual Type LookupTypeReflection (string name, Location loc)
{
- return GetTypeInAssembly (referenced_assembly, name);
+ Type found_type = null;
+
+ foreach (Assembly a in referenced_assemblies) {
+ Type t = GetTypeInAssembly (a, name);
+ if (t == null)
+ continue;
+
+ if (found_type == null) {
+ found_type = t;
+ continue;
+ }
+
+ Report.SymbolRelatedToPreviousError (found_type);
+ Report.SymbolRelatedToPreviousError (t);
+ Report.Error (433, loc, "The imported type `{0}' is defined multiple times", name);
+
+ return found_type;
+ }
+
+ return found_type;
}
public void RegisterNamespace (Namespace child)
protected void ComputeNamespaces (Assembly assembly)
{
- // How to test whether attribute exists without loading the assembly :-(
-#if NET_2_1
- const string SystemCore = "System.Core, Version=2.0.5.0, Culture=neutral, PublicKeyToken=b77a5c561934e089";
-#else
- const string SystemCore = "System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089";
-#endif
- if (TypeManager.extension_attribute_type == null &&
- assembly.FullName == SystemCore) {
- TypeManager.extension_attribute_type = assembly.GetType("System.Runtime.CompilerServices.ExtensionAttribute");
- }
-
bool contains_extension_methods = TypeManager.extension_attribute_type != null &&
assembly.IsDefined(TypeManager.extension_attribute_type, false);
}
public class GlobalRootNamespace : RootNamespace {
- Assembly [] assemblies;
Module [] modules;
public GlobalRootNamespace ()
- : base ("global", null)
+ : base ("global")
{
- assemblies = new Assembly [0];
}
public Assembly [] Assemblies {
- get { return assemblies; }
+ get { return referenced_assemblies; }
}
public Module [] Modules {
get { return modules; }
}
- public void AddAssemblyReference (Assembly a)
- {
- foreach (Assembly assembly in assemblies) {
- if (a == assembly)
- return;
- }
-
- int top = assemblies.Length;
- Assembly [] n = new Assembly [top + 1];
- assemblies.CopyTo (n, 0);
- n [top] = a;
- assemblies = n;
-
- ComputeNamespaces (a);
- }
-
public void AddModuleReference (Module m)
{
int top = modules != null ? modules.Length : 0;
public override Type LookupTypeReflection (string name, Location loc)
{
- Type found_type = null;
-
- foreach (Assembly a in assemblies) {
- Type t = GetTypeInAssembly (a, name);
- if (t == null)
- continue;
-
- if (found_type == null) {
- found_type = t;
- continue;
- }
-
- Report.SymbolRelatedToPreviousError (found_type);
- Report.SymbolRelatedToPreviousError (t);
- Report.Error (433, loc, "The imported type `{0}' is defined multiple times", name);
-
- return found_type;
- }
+ Type found_type = base.LookupTypeReflection (name, loc);
if (modules != null) {
foreach (Module module in modules) {
if (this.root == null)
throw new InternalErrorException ("Root namespaces must be created using RootNamespace");
- string pname = parent != null ? parent.Name : "";
+ string pname = parent != null ? parent.fullname : "";
if (pname == "")
fullname = name;
else
- fullname = parent.Name + "." + name;
+ fullname = parent.fullname + "." + name;
if (fullname == null)
throw new InternalErrorException ("Namespace has a null fullname");
}
Report.Error (234, loc, "The type or namespace name `{0}' does not exist in the namespace `{1}'. Are you missing an assembly reference?",
- name, FullName);
+ name, GetSignatureForError ());
}
public static void Error_InvalidNumberOfTypeArguments (Type t, Location loc)
type, name);
}
- public override void Emit (EmitContext ec)
- {
- throw new InternalErrorException ("Expression tree referenced namespace " + fullname + " during Emit ()");
- }
-
public override string GetSignatureForError ()
{
- return Name;
+ return fullname;
}
public Namespace GetNamespace (string name, bool create)
return ns;
}
+ public bool HasDefinition (string name)
+ {
+ return declspaces != null && declspaces [name] != null;
+ }
+
TypeExpr LookupType (string name, Location loc)
{
if (cached_types.Contains (name))
//
tdecl.DefineType ();
t = tdecl.TypeBuilder;
+
+ if (RootContext.EvalMode){
+ // Replace the TypeBuilder with a System.Type, as
+ // Reflection.Emit fails otherwise (we end up pretty
+ // much with Random type definitions later on).
+ Type tt = t.Assembly.GetType (t.Name);
+ if (tt != null)
+ t = tt;
+ }
}
}
string lookup = t != null ? t.FullName : (fullname.Length == 0 ? name : fullname + "." + name);
///
/// Looks for extension method in this namespace
///
- public ArrayList LookupExtensionMethod (Type extensionType, ClassOrStruct currentClass, string name, NamespaceEntry ns)
+ public ArrayList LookupExtensionMethod (Type extensionType, ClassOrStruct currentClass, string name)
{
ArrayList found = null;
declspaces.Add (name, ds);
}
+ public void RemoveDeclSpace (string name)
+ {
+ declspaces.Remove (name);
+ }
+
/// <summary>
/// The qualified name of the current namespace
/// </summary>
get { return fullname; }
}
- public override string FullName {
- get { return fullname; }
- }
-
/// <summary>
/// The parent of this namespace, used by the parser to "Pop"
/// the current namespace declaration
public Namespace Parent {
get { return parent; }
}
-
- public override string ToString ()
- {
- return String.Format ("Namespace ({0})", Name);
- }
}
- public class NamespaceEntry {
- Namespace ns;
- NamespaceEntry parent, implicit_parent;
- SourceFile file;
- int symfile_id;
- Hashtable aliases;
- ArrayList using_clauses;
- public bool DeclarationFound = false;
- bool UsingFound;
-
- public readonly DeclSpace SlaveDeclSpace;
+ //
+ // Namespace container as created by the parser
+ //
+ public class NamespaceEntry : IResolveContext {
- ListDictionary extern_aliases;
+ class UsingEntry {
+ readonly MemberName name;
+ Namespace resolved;
+
+ public UsingEntry (MemberName name)
+ {
+ this.name = name;
+ }
- static ArrayList entries = new ArrayList ();
+ public string GetSignatureForError ()
+ {
+ return name.GetSignatureForError ();
+ }
- public static void Reset ()
- {
- entries = new ArrayList ();
- }
+ public Location Location {
+ get { return name.Location; }
+ }
- //
- // This class holds the location where a using definition is
- // done, and whether it has been used by the program or not.
- //
- // We use this to flag using clauses for namespaces that do not
- // exist.
- //
- public class UsingEntry : IResolveContext {
- public readonly MemberName Name;
- readonly NamespaceEntry NamespaceEntry;
- readonly Location Location;
+ public MemberName MemberName {
+ get { return name; }
+ }
- public UsingEntry (NamespaceEntry entry, MemberName name, Location loc)
- {
- Name = name;
- NamespaceEntry = entry;
- Location = loc;
+ public string Name {
+ get { return GetSignatureForError (); }
}
- internal Namespace resolved;
-
- public Namespace Resolve ()
+ public Namespace Resolve (IResolveContext rc)
{
if (resolved != null)
return resolved;
- FullNamedExpression fne = Name.GetTypeExpression ().ResolveAsTypeStep (this, false);
+ FullNamedExpression fne = name.GetTypeExpression ().ResolveAsTypeStep (rc, false);
if (fne == null)
return null;
if (resolved == null) {
Report.SymbolRelatedToPreviousError (fne.Type);
Report.Error (138, Location,
- "`{0}' is a type not a namespace. A using namespace directive can only be applied to namespaces", Name.GetSignatureForError ());
+ "`{0}' is a type not a namespace. A using namespace directive can only be applied to namespaces",
+ GetSignatureForError ());
}
return resolved;
}
- DeclSpace IResolveContext.DeclContainer {
- get { return NamespaceEntry.SlaveDeclSpace; }
+ public override string ToString ()
+ {
+ return Name;
}
+ }
- DeclSpace IResolveContext.GenericDeclContainer {
- get { return NamespaceEntry.SlaveDeclSpace; }
- }
+ class UsingAliasEntry {
+ public readonly string Alias;
+ public Location Location;
- bool IResolveContext.IsInObsoleteScope {
- get { return false; }
- }
- bool IResolveContext.IsInUnsafeScope {
- get { return false; }
+ public UsingAliasEntry (string alias, Location loc)
+ {
+ this.Alias = alias;
+ this.Location = loc;
}
- }
- public abstract class AliasEntry {
- public readonly string Name;
- public readonly NamespaceEntry NamespaceEntry;
- public readonly Location Location;
-
- protected AliasEntry (NamespaceEntry entry, string name, Location loc)
+ public virtual FullNamedExpression Resolve (IResolveContext rc)
{
- Name = name;
- NamespaceEntry = entry;
- Location = loc;
+ FullNamedExpression fne = RootNamespace.GetRootNamespace (Alias);
+ if (fne == null) {
+ Report.Error (430, Location,
+ "The extern alias `{0}' was not specified in -reference option",
+ Alias);
+ }
+
+ return fne;
}
-
- protected FullNamedExpression resolved;
- bool error;
- public FullNamedExpression Resolve ()
+ public override string ToString ()
{
- if (resolved != null || error)
- return resolved;
- resolved = DoResolve ();
- if (resolved == null)
- error = true;
- return resolved;
+ return Alias;
}
-
- protected abstract FullNamedExpression DoResolve ();
+
}
- public class LocalAliasEntry : AliasEntry, IResolveContext {
- public readonly Expression Alias;
-
- public LocalAliasEntry (NamespaceEntry entry, string name, MemberName alias, Location loc) :
- base (entry, name, loc)
+ class LocalUsingAliasEntry : UsingAliasEntry {
+ Expression resolved;
+ MemberName value;
+
+ public LocalUsingAliasEntry (string alias, MemberName name, Location loc)
+ : base (alias, loc)
{
- Alias = alias.GetTypeExpression ();
+ this.value = name;
}
- protected override FullNamedExpression DoResolve ()
+ public override FullNamedExpression Resolve (IResolveContext rc)
{
- resolved = Alias.ResolveAsTypeStep (this, false);
- if (resolved == null)
+ if (resolved != null || value == null)
+ return (FullNamedExpression)resolved;
+
+ resolved = value.GetTypeExpression ().ResolveAsTypeStep (rc, false);
+ if (resolved == null) {
+ value = null;
return null;
+ }
+ // FIXME: This is quite wrong, the accessibility is not global
if (resolved.Type != null) {
TypeAttributes attr = resolved.Type.Attributes & TypeAttributes.VisibilityMask;
if (attr == TypeAttributes.NestedPrivate || attr == TypeAttributes.NestedFamily ||
((attr == TypeAttributes.NestedFamORAssem || attr == TypeAttributes.NestedAssembly) &&
TypeManager.LookupDeclSpace (resolved.Type) == null)) {
- Expression.ErrorIsInaccesible (Alias.Location, Alias.ToString ());
+ Expression.ErrorIsInaccesible (resolved.Location, resolved.GetSignatureForError ());
return null;
}
}
- return resolved;
+ return (FullNamedExpression)resolved;
}
- DeclSpace IResolveContext.DeclContainer {
- get { return NamespaceEntry.SlaveDeclSpace; }
+ public override string ToString ()
+ {
+ return String.Format ("{0} = {1}", Alias, value.GetSignatureForError ());
}
+ }
- DeclSpace IResolveContext.GenericDeclContainer {
- get { return NamespaceEntry.SlaveDeclSpace; }
- }
+ Namespace ns;
+ NamespaceEntry parent, implicit_parent;
+ CompilationUnit file;
+ int symfile_id;
- bool IResolveContext.IsInObsoleteScope {
- get { return false; }
- }
- bool IResolveContext.IsInUnsafeScope {
- get { return false; }
- }
- }
+ // Namespace using import block
+ ArrayList using_aliases;
+ ArrayList using_clauses;
+ public bool DeclarationFound = false;
+ // End
- public class ExternAliasEntry : AliasEntry {
- public ExternAliasEntry (NamespaceEntry entry, string name, Location loc) :
- base (entry, name, loc)
- {
- }
+ public readonly bool IsImplicit;
+ public readonly DeclSpace SlaveDeclSpace;
+ static readonly Namespace [] empty_namespaces = new Namespace [0];
+ Namespace [] namespace_using_table;
- protected override FullNamedExpression DoResolve ()
- {
- resolved = RootNamespace.GetRootNamespace (Name);
- if (resolved == null)
- Report.Error (430, Location, "The extern alias '" + Name +
- "' was not specified in a /reference option");
+ static ArrayList entries = new ArrayList ();
- return resolved;
- }
+ public static void Reset ()
+ {
+ entries = new ArrayList ();
}
- public NamespaceEntry (NamespaceEntry parent, SourceFile file, string name)
+ public NamespaceEntry (NamespaceEntry parent, CompilationUnit file, string name)
{
this.parent = parent;
this.file = file;
entries.Add (this);
- this.ID = entries.Count;
if (parent != null)
ns = parent.NS.GetNamespace (name, true);
SlaveDeclSpace = new RootDeclSpace (this);
}
- private NamespaceEntry (NamespaceEntry parent, SourceFile file, Namespace ns, bool slave)
+ private NamespaceEntry (NamespaceEntry parent, CompilationUnit file, Namespace ns, bool slave)
{
this.parent = parent;
this.file = file;
- // no need to add self to 'entries', since we don't have any aliases or using entries.
- this.ID = -1;
this.IsImplicit = true;
this.ns = ns;
this.SlaveDeclSpace = slave ? new RootDeclSpace (this) : null;
}
+ //
+ // Populates the Namespace with some using declarations, used by the
+ // eval mode.
+ //
+ public void Populate (ArrayList source_using_aliases, ArrayList source_using_clauses)
+ {
+ foreach (UsingAliasEntry uae in source_using_aliases){
+ if (using_aliases == null)
+ using_aliases = new ArrayList ();
+
+ using_aliases.Add (uae);
+ }
+
+ foreach (UsingEntry ue in source_using_clauses){
+ if (using_clauses == null)
+ using_clauses = new ArrayList ();
+
+ using_clauses.Add (ue);
+ }
+ }
+
+ //
+ // Extracts the using alises and using clauses into a couple of
+ // arrays that might already have the same information; Used by the
+ // C# Eval mode.
+ //
+ public void Extract (ArrayList out_using_aliases, ArrayList out_using_clauses)
+ {
+ if (using_aliases != null){
+ foreach (UsingAliasEntry uae in using_aliases){
+ bool replaced = false;
+
+ for (int i = 0; i < out_using_aliases.Count; i++){
+ UsingAliasEntry out_uea = (UsingAliasEntry) out_using_aliases [i];
+
+ if (out_uea.Alias == uae.Alias){
+ out_using_aliases [i] = uae;
+ replaced = true;
+ break;
+ }
+ }
+ if (!replaced)
+ out_using_aliases.Add (uae);
+ }
+ }
+
+ if (using_clauses != null){
+ foreach (UsingEntry ue in using_clauses){
+ bool found = false;
+
+ foreach (UsingEntry out_ue in out_using_clauses)
+ if (out_ue.Name == ue.Name){
+ found = true;
+ break;
+ }
+ if (!found)
+ out_using_clauses.Add (ue);
+ }
+ }
+ }
+
//
// According to section 16.3.1 (using-alias-directive), the namespace-or-type-name is
// resolved as if the immediately containing namespace body has no using-directives.
NamespaceEntry doppelganger;
NamespaceEntry Doppelganger {
get {
- if (!IsImplicit && doppelganger == null)
+ if (!IsImplicit && doppelganger == null) {
doppelganger = new NamespaceEntry (ImplicitParent, file, ns, true);
+ doppelganger.using_aliases = using_aliases;
+ }
return doppelganger;
}
}
- public readonly int ID;
- public readonly bool IsImplicit;
-
public Namespace NS {
get { return ns; }
}
/// <summary>
/// Records a new namespace for resolving name references
/// </summary>
- public void Using (MemberName name, Location loc)
+ public void AddUsing (MemberName name, Location loc)
{
if (DeclarationFound){
Report.Error (1529, loc, "A using clause must precede all other namespace elements except extern alias declarations");
- return;
}
- UsingFound = true;
-
- if (name.Equals (ns.MemberName))
- return;
-
- if (using_clauses == null)
+ if (using_clauses == null) {
using_clauses = new ArrayList ();
-
- foreach (UsingEntry old_entry in using_clauses) {
- if (name.Equals (old_entry.Name)) {
- Report.Warning (105, 3, loc, "The using directive for `{0}' appeared previously in this namespace", name.GetName ());
- return;
+ } else {
+ foreach (UsingEntry old_entry in using_clauses) {
+ if (name.Equals (old_entry.MemberName)) {
+ Report.SymbolRelatedToPreviousError (old_entry.Location, old_entry.GetSignatureForError ());
+ Report.Warning (105, 3, loc, "The using directive for `{0}' appeared previously in this namespace", name.GetSignatureForError ());
+ return;
+ }
}
}
- UsingEntry ue = new UsingEntry (Doppelganger, name, loc);
- using_clauses.Add (ue);
+ using_clauses.Add (new UsingEntry (name));
}
- public void UsingAlias (string name, MemberName alias, Location loc)
+ public void AddUsingAlias (string alias, MemberName name, Location loc)
{
+ // TODO: This is parser bussines
if (DeclarationFound){
Report.Error (1529, loc, "A using clause must precede all other namespace elements except extern alias declarations");
- return;
}
- UsingFound = true;
-
- if (aliases == null)
- aliases = new Hashtable ();
-
- if (aliases.Contains (name)) {
- AliasEntry ae = (AliasEntry) aliases [name];
- Report.SymbolRelatedToPreviousError (ae.Location, ae.Name);
- Report.Error (1537, loc, "The using alias `{0}' appeared previously in this namespace", name);
- return;
- }
-
- if (RootContext.Version != LanguageVersion.ISO_1 && name == "global")
+ if (RootContext.Version != LanguageVersion.ISO_1 && alias == "global")
Report.Warning (440, 2, loc, "An alias named `global' will not be used when resolving 'global::';" +
" the global namespace will be used instead");
- // FIXME: get correct error number. See if the above check can be merged
- if (extern_aliases != null && extern_aliases.Contains (name)) {
- AliasEntry ae = (AliasEntry) extern_aliases [name];
- Report.SymbolRelatedToPreviousError (ae.Location, ae.Name);
- Report.Error (1537, loc, "The using alias `{0}' appeared previously in this namespace", name);
- return;
- }
-
- aliases [name] = new LocalAliasEntry (Doppelganger, name, alias, loc);
+ AddUsingAlias (new LocalUsingAliasEntry (alias, name, loc));
}
- public void UsingExternalAlias (string name, Location loc)
+ public void AddUsingExternalAlias (string alias, Location loc)
{
- if (UsingFound || DeclarationFound) {
- Report.Error (439, loc, "An extern alias declaration must precede all other elements");
- return;
- }
-
- // Share the extern_aliases field with the Doppelganger
- if (extern_aliases == null) {
- extern_aliases = new ListDictionary ();
- Doppelganger.extern_aliases = extern_aliases;
+ // TODO: Do this in parser
+ bool not_first = using_clauses != null || DeclarationFound;
+ if (using_aliases != null && !not_first) {
+ foreach (UsingAliasEntry uae in using_aliases) {
+ if (uae is LocalUsingAliasEntry) {
+ not_first = true;
+ break;
+ }
+ }
}
- if (extern_aliases.Contains (name)) {
- AliasEntry ae = (AliasEntry) extern_aliases [name];
- Report.SymbolRelatedToPreviousError (ae.Location, ae.Name);
- Report.Error (1537, loc, "The using alias `{0}' appeared previously in this namespace", name);
- return;
- }
+ if (not_first)
+ Report.Error (439, loc, "An extern alias declaration must precede all other elements");
- if (name == "global") {
+ if (alias == "global") {
Error_GlobalNamespaceRedefined (loc);
return;
}
- // Register the alias in aliases and extern_aliases, since we need both of them
- // to keep things simple (different resolution scenarios)
- ExternAliasEntry alias = new ExternAliasEntry (Doppelganger, name, loc);
- extern_aliases [name] = alias;
+ AddUsingAlias (new UsingAliasEntry (alias, loc));
+ }
+
+ void AddUsingAlias (UsingAliasEntry uae)
+ {
+ if (using_aliases == null) {
+ using_aliases = new ArrayList ();
+ } else {
+ foreach (UsingAliasEntry entry in using_aliases) {
+ if (uae.Alias == entry.Alias) {
+ Report.SymbolRelatedToPreviousError (uae.Location, uae.Alias);
+ Report.Error (1537, entry.Location, "The using alias `{0}' appeared previously in this namespace",
+ entry.Alias);
+ return;
+ }
+ }
+ }
+
+ using_aliases.Add (uae);
}
///
/// Does extension methods look up to find a method which matches name and extensionType.
/// Search starts from this namespace and continues hierarchically up to top level.
///
- public ExtensionMethodGroupExpr LookupExtensionMethod (Type extensionType, ClassOrStruct currentClass, string name)
+ public ExtensionMethodGroupExpr LookupExtensionMethod (Type extensionType, ClassOrStruct currentClass, string name, Location loc)
{
ArrayList candidates = null;
if (currentClass != null) {
- candidates = ns.LookupExtensionMethod (extensionType, currentClass, name, this);
+ candidates = ns.LookupExtensionMethod (extensionType, currentClass, name);
if (candidates != null)
- return new ExtensionMethodGroupExpr (candidates, this, extensionType, Location.Null);
+ return new ExtensionMethodGroupExpr (candidates, this, extensionType, loc);
}
foreach (Namespace n in GetUsingTable ()) {
- ArrayList a = n.LookupExtensionMethod (extensionType, null, name, this);
+ ArrayList a = n.LookupExtensionMethod (extensionType, null, name);
if (a == null)
continue;
}
if (candidates != null)
- return new ExtensionMethodGroupExpr (candidates, parent, extensionType, Location.Null);
+ return new ExtensionMethodGroupExpr (candidates, parent, extensionType, loc);
if (parent == null)
return null;
- return parent.LookupExtensionMethod (extensionType, currentClass, name);
+ //
+ // Inspect parent namespaces in namespace expression
+ //
+ Namespace parent_ns = ns.Parent;
+ do {
+ candidates = parent_ns.LookupExtensionMethod (extensionType, null, name);
+ if (candidates != null)
+ return new ExtensionMethodGroupExpr (candidates, parent, extensionType, loc);
+
+ parent_ns = parent_ns.Parent;
+ } while (parent_ns != null);
+
+ //
+ // Continue in parent scope
+ //
+ return parent.LookupExtensionMethod (extensionType, currentClass, name, loc);
}
public FullNamedExpression LookupNamespaceOrType (DeclSpace ds, string name, Location loc, bool ignore_cs0104)
Report.SymbolRelatedToPreviousError (t1.Type);
Report.SymbolRelatedToPreviousError (t2.Type);
Report.Error (104, loc, "`{0}' is an ambiguous reference between `{1}' and `{2}'",
- name, t1.FullName, t2.FullName);
+ name, t1.GetSignatureForError (), t2.GetSignatureForError ());
}
// Looks-up a alias named @name in this and surrounding namespace declarations
public FullNamedExpression LookupAlias (string name)
{
- AliasEntry entry = null;
for (NamespaceEntry n = this; n != null; n = n.ImplicitParent) {
- if (n.extern_aliases != null && (entry = n.extern_aliases [name] as AliasEntry) != null)
- break;
- if (n.aliases != null && (entry = n.aliases [name] as AliasEntry) != null)
- break;
+ if (n.using_aliases == null)
+ continue;
+
+ foreach (UsingAliasEntry ue in n.using_aliases) {
+ if (ue.Alias == name)
+ return ue.Resolve (Doppelganger);
+ }
}
- return entry == null ? null : entry.Resolve ();
+
+ return null;
}
private FullNamedExpression Lookup (DeclSpace ds, string name, Location loc, bool ignore_cs0104)
// Check whether it's in the namespace.
//
FullNamedExpression fne = ns.Lookup (ds, name, loc);
- if (fne != null)
- return fne;
- if (extern_aliases != null) {
- AliasEntry entry = extern_aliases [name] as AliasEntry;
- if (entry != null)
- return entry.Resolve ();
- }
-
- if (IsImplicit)
- return null;
-
//
// Check aliases.
//
- if (aliases != null) {
- AliasEntry entry = aliases [name] as AliasEntry;
- if (entry != null)
- return entry.Resolve ();
+ if (using_aliases != null) {
+ foreach (UsingAliasEntry ue in using_aliases) {
+ if (ue.Alias == name) {
+ if (fne != null) {
+ if (Doppelganger != null) {
+ // TODO: Namespace has broken location
+ //Report.SymbolRelatedToPreviousError (fne.Location, null);
+ Report.SymbolRelatedToPreviousError (ue.Location, null);
+ Report.Error (576, loc,
+ "Namespace `{0}' contains a definition with same name as alias `{1}'",
+ GetSignatureForError (), name);
+ } else {
+ return fne;
+ }
+ }
+
+ return ue.Resolve (Doppelganger);
+ }
+ }
}
+ if (fne != null)
+ return fne;
+
+ if (IsImplicit)
+ return null;
+
//
// Check using entries.
//
return fne;
}
- // Our cached computation.
- static readonly Namespace [] empty_namespaces = new Namespace [0];
- Namespace [] namespace_using_table;
Namespace [] GetUsingTable ()
{
if (namespace_using_table != null)
ArrayList list = new ArrayList (using_clauses.Count);
foreach (UsingEntry ue in using_clauses) {
- Namespace using_ns = ue.Resolve ();
+ Namespace using_ns = ue.Resolve (Doppelganger);
if (using_ns == null)
continue;
list.Add (using_ns);
}
- namespace_using_table = new Namespace [list.Count];
- list.CopyTo (namespace_using_table, 0);
+ namespace_using_table = (Namespace[])list.ToArray (typeof (Namespace));
return namespace_using_table;
}
if (using_clauses != null) {
using_list = new string [using_clauses.Count];
for (int i = 0; i < using_clauses.Count; i++)
- using_list [i] = ((UsingEntry) using_clauses [i]).Name.GetTypeName ();
+ using_list [i] = ((UsingEntry) using_clauses [i]).MemberName.GetTypeName ();
}
- symfile_id = SymbolWriter.DefineNamespace (ns.Name, file.SourceFileEntry, using_list, parent_id);
+ symfile_id = SymbolWriter.DefineNamespace (ns.Name, file.CompileUnitEntry, using_list, parent_id);
}
return symfile_id;
}
public static void Error_NamespaceNotFound (Location loc, string name)
{
+ if (RootContext.EvalMode){
+ // Do not report this, it might be an error on the eval side, and we are lax there.
+ return;
+ }
+
Report.Error (246, loc, "The type or namespace name `{0}' could not be found. Are you missing a using directive or an assembly reference?",
name);
/// </summary>
void VerifyUsing ()
{
- if (extern_aliases != null) {
- foreach (DictionaryEntry de in extern_aliases)
- ((AliasEntry) de.Value).Resolve ();
- }
+ if (using_aliases != null) {
+ foreach (UsingAliasEntry ue in using_aliases)
+ ue.Resolve (Doppelganger);
+ }
if (using_clauses != null) {
foreach (UsingEntry ue in using_clauses)
- ue.Resolve ();
- }
-
- if (aliases != null) {
- foreach (DictionaryEntry de in aliases)
- ((AliasEntry) de.Value).Resolve ();
+ ue.Resolve (Doppelganger);
}
}
{
return ns.ToString ();
}
+
+ #region IResolveContext Members
+
+ public DeclSpace DeclContainer {
+ get { return SlaveDeclSpace; }
+ }
+
+ public bool IsInObsoleteScope {
+ get { return SlaveDeclSpace.IsInObsoleteScope; }
+ }
+
+ public bool IsInUnsafeScope {
+ get { return SlaveDeclSpace.IsInUnsafeScope; }
+ }
+
+ public DeclSpace GenericDeclContainer {
+ get { return SlaveDeclSpace; }
+ }
+
+ #endregion
}
}
projects / mono.git / blobdiff