// rootcontext.cs: keeps track of our tree representation, and assemblies loaded.
//
// Author: Miguel de Icaza (miguel@ximian.com)
+// Ravi Pratap (ravi@ximian.com)
//
// Licensed under the terms of the GNU GPL
//
using System.Reflection.Emit;
using System.Diagnostics;
-namespace CIR {
+namespace Mono.CSharp {
public class RootContext {
//
// Contains the parsed tree
//
- Tree tree;
+ static Tree tree;
//
- // Contains loaded assemblies and our generated code as we go.
+ // This hashtable contains all of the #definitions across the source code
+ // it is used by the ConditionalAttribute handler.
//
- TypeManager type_manager;
-
+ public static Hashtable AllDefines = new Hashtable ();
+
//
- // The System.Reflection.Emit CodeGenerator
+ // The list of global attributes (those that target the assembly)
//
- CodeGen cg;
-
+ static Hashtable global_attributes = new Hashtable ();
+
//
- // The module builder pointer
+ // Whether we are being linked against the standard libraries.
+ // This is only used to tell whether `System.Object' should
+ // have a parent or not.
//
- ModuleBuilder mb;
+ public static bool StdLib = true;
//
- // Error reporting object
- //
- Report report;
-
+ // This keeps track of the order in which classes were defined
+ // so that we can poulate them in that order.
//
- // The `System.Object' and `System.ValueType' types, as they
- // are used often
+ // Order is important, because we need to be able to tell by
+ // examining the parent's list of methods which ones are virtual
+ // or abstract as well as the parent names (to implement new,
+ // override).
//
- Type object_type;
- Type value_type;
+ static ArrayList type_container_resolve_order;
+ static ArrayList interface_resolve_order;
+ static ArrayList attribute_types;
//
- // Whether we are being linked against the standard libraries.
- // This is only used to tell whether `System.Object' should
- // have a parent or not.
+ // Holds a reference to the Private Implementation Details
+ // class.
//
- bool stdlib = true;
+ static TypeBuilder impl_details_class;
+
+ public static int WarningLevel = 2;
- public RootContext ()
+ //
+ // Constructor
+ //
+ static RootContext ()
{
- tree = new Tree (this);
- type_manager = new TypeManager ();
- report = new Report ();
-
- object_type = System.Type.GetType ("System.Object");
- value_type = System.Type.GetType ("System.ValueType");
+ tree = new Tree ();
+ interface_resolve_order = new ArrayList ();
+ type_container_resolve_order = new ArrayList ();
}
- public TypeManager TypeManager {
- get {
- return type_manager;
- }
- }
-
- public Tree Tree {
+ static public Tree Tree {
get {
return tree;
}
}
- public CodeGen CodeGen {
- get {
- return cg;
- }
-
- set {
- //
- // Temporary hack, we should probably
- // intialize `cg' rather than depending on
- // external initialization of it.
- //
- cg = value;
- mb = cg.ModuleBuilder;
- }
+ static public string MainClass;
+
+ public static void RegisterOrder (Interface iface)
+ {
+ interface_resolve_order.Add (iface);
}
-
- //
- // Returns the Type that represents the interface whose name
- // is `name'.
- //
- Type GetInterfaceTypeByName (string name)
+ public static void RegisterOrder (TypeContainer tc)
{
- Interface parent;
- Type t = type_manager.LookupType (name);
-
- if (t != null) {
-
- if (t.IsInterface)
- return t;
-
- string cause;
-
- if (t.IsValueType)
- cause = "is a struct";
- else if (t.IsClass)
- cause = "is a class";
- else
- cause = "Should not happen.";
-
- report.Error (527, "`"+name+"' " + cause + ", need an interface instead");
-
- return null;
- }
+ type_container_resolve_order.Add (tc);
+ }
- parent = (Interface) tree.Interfaces [name];
- if (parent == null){
- string cause = "is undefined";
-
- if (tree.Classes [name] != null)
- cause = "is a class";
- else if (tree.Structs [name] != null)
- cause = "is a struct";
-
- report.Error (527, "`"+name+"' " + cause + ", need an interface instead");
- return null;
- }
+ public static void RegisterAttribute (TypeContainer tc)
+ {
+ if (attribute_types == null)
+ attribute_types = new ArrayList ();
- t = CreateInterface ((Interface) parent);
- if (t == null){
- report.Error (529,
- "Inherited interface `"+name+"' is circular");
- return null;
- }
-
- return t;
+ attribute_types.Add (tc);
}
+ //
+ // The default compiler checked state
//
- // Returns the list of interfaces that this interface implements
- // Or null if it does not implement any interface.
+ static public bool Checked = false;
+
//
- // Sets the error boolean accoringly.
+ // Whether to allow Unsafe code
//
- Type [] GetInterfaceBases (Interface iface, out bool error)
+ static public bool Unsafe = false;
+
+ static string MakeFQN (string nsn, string name)
{
- ArrayList bases = iface.Bases;
- Type [] tbases;
- int i;
-
- error = false;
- if (bases == null)
- return null;
-
- tbases = new Type [bases.Count];
- i = 0;
-
- foreach (string name in iface.Bases){
- Type t;
-
- t = GetInterfaceTypeByName (name);
- if (t == null){
- error = true;
- return null;
- }
-
- tbases [i++] = t;
- }
+ string prefix = (nsn == "" ? "" : nsn + ".");
- return tbases;
+ return prefix + name;
}
-
- //
- // Creates the Interface @iface using the ModuleBuilder
- //
- // TODO:
- // Rework the way we recurse, because for recursive
- // definitions of interfaces (A:B and B:A) we report the
- // error twice, rather than once.
+
+ // <remarks>
+ // This function is used to resolve the hierarchy tree.
+ // It processes interfaces, structs and classes in that order.
//
- TypeBuilder CreateInterface (Interface iface)
+ // It creates the TypeBuilder's as it processes the user defined
+ // types.
+ // </remarks>
+ static public void ResolveTree ()
{
- TypeBuilder tb = iface.TypeBuilder;
- Type [] ifaces;
- string name;
- bool error;
-
- if (tb != null)
- return tb;
-
- if (iface.InTransit)
- return null;
+ //
+ // Process the attribute types separately and before anything else
+ //
+ if (attribute_types != null)
+ foreach (TypeContainer tc in attribute_types)
+ tc.DefineType ();
- iface.InTransit = true;
-
- name = iface.Name;
-
- ifaces = GetInterfaceBases (iface, out error);
+ //
+ // Interfaces are processed next, as classes and
+ // structs might inherit from an object or implement
+ // a set of interfaces, we need to be able to tell
+ // them appart by just using the TypeManager.
+ //
+ TypeContainer root = Tree.Types;
- if (error)
- return null;
+ ArrayList ifaces = root.Interfaces;
+ if (ifaces != null){
+ foreach (Interface i in ifaces)
+ i.DefineType ();
+ }
- // FIXME: use the actual accesibility here, not
- // TypeAttributes.Public.
- tb = mb.DefineType (name,
- TypeAttributes.Interface |
- TypeAttributes.Public |
- TypeAttributes.Abstract,
- null, // Parent Type
- ifaces);
- iface.TypeBuilder = tb;
+
+ foreach (TypeContainer tc in root.Types)
+ tc.DefineType ();
- type_manager.AddUserType (name, tb);
+ if (root.Delegates != null)
+ foreach (Delegate d in root.Delegates)
+ d.DefineType ();
- iface.InTransit = false;
- return tb;
+ if (root.Enums != null)
+ foreach (Enum e in root.Enums)
+ e.DefineType ();
+
}
- string MakeFQN (string nsn, string name)
+ static void Error_TypeConflict (string name, Location loc)
{
- string prefix = (nsn == "" ? "" : nsn + ".");
-
- return prefix + name;
+ Report.Error (
+ 520, loc, "`" + name + "' conflicts with a predefined type");
}
-
- Type LookupInterfaceOrClass (string ns, string name, bool is_class, out bool error)
- {
- TypeContainer parent;
- Type t;
- error = false;
- name = MakeFQN (ns, name);
- Console.WriteLine ("Attempting to locate " + name);
-
- t = type_manager.LookupType (name);
- if (t != null)
- return t;
+ static void Error_TypeConflict (string name)
+ {
+ Report.Error (
+ 520, "`" + name + "' conflicts with a predefined type");
+ }
- if (is_class){
- parent = (Class) tree.Classes [name];
- } else {
- parent = (Struct) tree.Structs [name];
+ //
+ // Resolves a single class during the corlib bootstrap process
+ //
+ static TypeBuilder BootstrapCorlib_ResolveClass (TypeContainer root, string name)
+ {
+ object o = root.GetDefinition (name);
+ if (o == null){
+ Report.Error (518, "The predefined type `" + name + "' is not defined");
+ return null;
}
- if (parent != null){
- t = CreateType (parent, is_class);
- if (t == null){
- report.Error (146, "Class definition is circular: `"+name+"'");
- error = true;
- return null;
- }
+ if (!(o is Class)){
+ if (o is DeclSpace){
+ DeclSpace d = (DeclSpace) o;
- return t;
+ Error_TypeConflict (name, d.Location);
+ } else
+ Error_TypeConflict (name);
+
+ return null;
}
- return null;
+ return ((DeclSpace) o).DefineType ();
}
-
+
//
- // returns the type for an interface or a class, this will recursively
- // try to define the types that it depends on.
+ // Resolves a struct during the corlib bootstrap process
//
- Type GetInterfaceOrClass (TypeContainer tc, string name, bool is_class)
+ static void BootstrapCorlib_ResolveStruct (TypeContainer root, string name)
{
- Type t;
- bool error;
-
- //
- // Attempt to lookup the class on our namespace
- //
- t = LookupInterfaceOrClass (tc.Namespace.Name, name, is_class, out error);
- if (error)
- return null;
-
- if (t != null)
- return t;
+ object o = root.GetDefinition (name);
+ if (o == null){
+ Report.Error (518, "The predefined type `" + name + "' is not defined");
+ return;
+ }
- //
- // Attempt to lookup the class on any of the `using'
- // namespaces
- //
- for (Namespace ns = tc.Namespace; ns != null; ns = ns.Parent){
- ArrayList using_list = ns.UsingTable;
+ if (!(o is Struct)){
+ if (o is DeclSpace){
+ DeclSpace d = (DeclSpace) o;
- if (using_list == null)
- continue;
-
- foreach (string n in using_list){
- t = LookupInterfaceOrClass (n, name, is_class, out error);
- if (error)
- return null;
+ Error_TypeConflict (name, d.Location);
+ } else
+ Error_TypeConflict (name);
- if (t != null)
- return t;
- }
-
+ return;
}
- report.Error (246, "Can not find type `"+name+"'");
- return null;
+
+ ((DeclSpace) o).DefineType ();
}
//
- // This function computes the Base class and also the
- // list of interfaces that the class or struct @c implements.
+ // Resolves a struct during the corlib bootstrap process
//
- // The return value is an array (might be null) of
- // interfaces implemented (as Types).
- //
- // The @parent argument is set to the parent object or null
- // if this is `System.Object'.
- //
- Type [] GetClassBases (TypeContainer tc, bool is_class, out Type parent, out bool error)
+ static void BootstrapCorlib_ResolveInterface (TypeContainer root, string name)
{
- ArrayList bases = tc.Bases;
- int count;
- int start, j, i;
-
- error = false;
-
- if (is_class)
- parent = null;
- else
- parent = value_type;
-
- if (bases == null){
- if (is_class){
- if (stdlib)
- parent = object_type;
- else if (tc.Name != "System.Object")
- parent = object_type;
- } else {
- //
- // If we are compiling our runtime,
- // and we are defining ValueType, then our
- // parent is `System.Object'.
- //
- if (!stdlib && tc. Name == "System.ValueType")
- parent = object_type;
- }
-
- return null;
+ object o = root.GetDefinition (name);
+ if (o == null){
+ Report.Error (518, "The predefined type `" + name + "' is not defined");
+ return;
}
- //
- // Bases should be null if there are no bases at all
- //
- count = bases.Count;
- Debug.Assert (count > 0);
+ if (!(o is Interface)){
+ if (o is DeclSpace){
+ DeclSpace d = (DeclSpace) o;
- if (is_class){
- string name = (string) bases [0];
- Type first = GetInterfaceOrClass (tc, name, is_class);
+ Error_TypeConflict (name, d.Location);
+ } else
+ Error_TypeConflict (name);
- if (first == null){
- error = true;
- return null;
- }
-
- if (first.IsClass){
- parent = first;
- start = 1;
- } else {
- parent = object_type;
- start = 0;
- }
- } else {
- start = 0;
+ return;
}
- Type [] ifaces = new Type [count-start];
-
- for (i = start, j = 0; i < count; i++, j++){
- string name = (string) bases [i];
- Type t = GetInterfaceOrClass (tc, name, is_class);
-
- if (t == null){
- error = true;
- return null;
- }
+ ((DeclSpace) o).DefineType ();
+ }
- if (is_class == false && !t.IsInterface){
- report.Error (527, "In Struct `"+tc.Name+"', type `"+
- name+"' is not an interface");
- error = true;
- return null;
- }
-
- if (t.IsSealed) {
- string detail = "";
-
- if (t.IsValueType)
- detail = " (a class can not inherit from a struct)";
-
- report.Error (509, "class `"+tc.Name+
- "': Cannot inherit from sealed class `"+
- bases [i]+"'"+detail);
- error = true;
- return null;
- }
+ //
+ // Resolves a delegate during the corlib bootstrap process
+ //
+ static void BootstrapCorlib_ResolveDelegate (TypeContainer root, string name)
+ {
+ object o = root.GetDefinition (name);
+ if (o == null){
+ Report.Error (518, "The predefined type `" + name + "' is not defined");
+ Environment.Exit (0);
+ }
- if (t.IsClass) {
- if (parent != null){
- report.Error (527, "In Class `"+tc.Name+"', type `"+
- name+"' is not an interface");
- error = true;
- return null;
- }
- }
-
- ifaces [j] = t;
+ if (!(o is Delegate)){
+ Error_TypeConflict (name);
+ return;
}
- return ifaces;
+ ((DeclSpace) o).DefineType ();
}
+
- // <remarks>
- // Creates the TypeBuilder for the TypeContainer @tc (a Class or a Struct)
- // </remarks>
- //
- TypeBuilder CreateType (TypeContainer tc, bool is_class)
+ /// <summary>
+ /// Resolves the core types in the compiler when compiling with --nostdlib
+ /// </summary>
+ static public void ResolveCore ()
{
- TypeBuilder tb = tc.TypeBuilder;
- Type parent;
- Type [] ifaces;
- bool error;
- string name;
-
- if (tb != null)
- return tb;
+ TypeContainer root = Tree.Types;
- if (tc.InTransit)
- return null;
- tc.InTransit = true;
-
- name = tc.Name;
+ TypeManager.object_type = BootstrapCorlib_ResolveClass (root, "System.Object");
+ TypeManager.value_type = BootstrapCorlib_ResolveClass (root, "System.ValueType");
+ TypeManager.attribute_type = BootstrapCorlib_ResolveClass (root, "System.Attribute");
+
+ string [] interfaces_first_stage = {
+ "System.IComparable", "System.ICloneable",
+ "System.IConvertible",
+
+ "System.Collections.IEnumerable",
+ "System.Collections.ICollection",
+ "System.Collections.IEnumerator",
+ "System.Collections.IList",
+ "System.IAsyncResult",
+ "System.IDisposable",
+
+ "System.Runtime.Serialization.ISerializable",
- ifaces = GetClassBases (tc, is_class, out parent, out error);
+ "System.Reflection.IReflect",
+ "System.Reflection.ICustomAttributeProvider"
+ };
- if (error)
- return null;
+ foreach (string iname in interfaces_first_stage)
+ BootstrapCorlib_ResolveInterface (root, iname);
- tb = mb.DefineType (name,
- tc.TypeAttr | TypeAttributes.Class,
- parent,
- ifaces);
+ //
+ // These are the base value types
+ //
+ string [] structs_first_stage = {
+ "System.Byte", "System.SByte",
+ "System.Int16", "System.UInt16",
+ "System.Int32", "System.UInt32",
+ "System.Int64", "System.UInt64",
+ };
- tc.TypeBuilder = tb;
- type_manager.AddUserType (name, tb);
- tc.InTransit = false;
-
- return tb;
- }
-
- // <remarks>
- // This function is used to resolve the hierarchy tree.
- // It processes interfaces, structs and classes in that order.
- //
- // It creates the TypeBuilder's as it processes the user defined
- // types.
- // </remarks>
- public void ResolveTree ()
- {
- Hashtable ifaces, classes, structs;
+ foreach (string cname in structs_first_stage)
+ BootstrapCorlib_ResolveStruct (root, cname);
//
- // Interfaces are processed first, as classes and
- // structs might inherit from an object or implement
- // a set of interfaces, we need to be able to tell
- // them appart by just using the TypeManager.
+ // Now, we can load the enumerations, after this point,
+ // we can use enums.
//
- ifaces = tree.Interfaces;
- if (ifaces != null){
- foreach (DictionaryEntry de in ifaces)
- CreateInterface ((Interface) de.Value);
- }
-
+ TypeManager.InitEnumUnderlyingTypes ();
+
+ string [] structs_second_stage = {
+ "System.Single", "System.Double",
+ "System.Char", "System.Boolean",
+ "System.Decimal", "System.Void",
+ "System.RuntimeFieldHandle",
+ "System.RuntimeTypeHandle",
+ "System.IntPtr"
+ };
+
+ foreach (string cname in structs_second_stage)
+ BootstrapCorlib_ResolveStruct (root, cname);
+
//
- // Process structs and classes next. Our code assumes
- // this order (just for error reporting purposes).
+ // These are classes that depends on the core interfaces
//
- structs = tree.Structs;
- if (structs != null){
- foreach (DictionaryEntry de in structs)
- CreateType ((Struct) de.Value, false);
- }
+ string [] classes_second_stage = {
+ "System.Reflection.MemberInfo",
+ "System.Type",
+ "System.Exception",
- classes = tree.Classes;
- if (classes != null){
- foreach (DictionaryEntry de in classes)
- CreateType ((Class) de.Value, true);
- }
+ //
+ // These are not really important in the order, but they
+ // are used by the compiler later on (typemanager/CoreLookupType-d)
+ //
+ "System.Runtime.CompilerServices.RuntimeHelpers",
+ "System.Reflection.DefaultMemberAttribute",
+ "System.Threading.Monitor",
+
+ "System.AttributeUsageAttribute",
+ "System.Runtime.InteropServices.DllImportAttribute",
+ "System.Runtime.CompilerServices.MethodImplAttribute",
+ "System.Runtime.InteropServices.MarshalAsAttribute",
+ "System.Diagnostics.ConditionalAttribute",
+ "System.ObsoleteAttribute",
+ "System.ParamArrayAttribute",
+ "System.Security.UnverifiableCodeAttribute",
+ "System.Runtime.CompilerServices.IndexerNameAttribute",
+ "System.Runtime.InteropServices.InAttribute"
+ };
+
+ // We must store them here before calling BootstrapCorlib_ResolveDelegate.
+ TypeManager.string_type = BootstrapCorlib_ResolveClass (root, "System.String");
+ TypeManager.enum_type = BootstrapCorlib_ResolveClass (root, "System.Enum");
+ TypeManager.array_type = BootstrapCorlib_ResolveClass (root, "System.Array");
+ TypeManager.multicast_delegate_type = BootstrapCorlib_ResolveClass (root, "System.MulticastDelegate");
+ TypeManager.delegate_type = BootstrapCorlib_ResolveClass (root, "System.Delegate");
+
+ foreach (string cname in classes_second_stage)
+ BootstrapCorlib_ResolveClass (root, cname);
+
+ BootstrapCorlib_ResolveDelegate (root, "System.AsyncCallback");
}
// <summary>
//
// <remarks>
// We usually use TypeBuilder types. When we are done
- // creating the type (which will happen after we have addded
+ // creating the type (which will happen after we have added
// methods, fields, etc) we need to "Define" them before we
// can save the Assembly
// </remarks>
- public void CloseTypes ()
+ static public void CloseTypes ()
{
- foreach (TypeBuilder t in type_manager.UserTypes){
- t.CreateType ();
+ TypeContainer root = Tree.Types;
+
+ ArrayList ifaces = root.Interfaces;
+
+ if (root.Enums != null)
+ foreach (Enum en in root.Enums)
+ en.CloseType ();
+
+ if (attribute_types != null)
+ foreach (TypeContainer tc in attribute_types)
+ tc.CloseType ();
+
+ foreach (Interface iface in interface_resolve_order)
+ iface.CloseType ();
+
+ //
+ // We do this in two passes, first we close the structs,
+ // then the classes, because it seems the code needs it this
+ // way. If this is really what is going on, we should probably
+ // make sure that we define the structs in order as well.
+ //
+ foreach (TypeContainer tc in type_container_resolve_order){
+ if (tc is Struct && tc.Parent == tree.Types){
+ tc.CloseType ();
+ }
+ }
+
+ foreach (TypeContainer tc in type_container_resolve_order){
+ if (!(tc is Struct && tc.Parent == tree.Types))
+ tc.CloseType ();
+ }
+
+ if (root.Delegates != null)
+ foreach (Delegate d in root.Delegates)
+ d.CloseType ();
+
+
+ //
+ // If we have a <PrivateImplementationDetails> class, close it
+ //
+ if (impl_details_class != null){
+ impl_details_class.CreateType ();
}
}
//
- // Public function used to locate types, this can only
- // be used after the ResolveTree function has been invoked.
+ // This idea is from Felix Arrese-Igor
//
- // Returns: Type or null if they type can not be found.
+ // Returns : the implicit parent of a composite namespace string
+ // eg. Implicit parent of A.B is A
//
- public Type LookupType (TypeContainer tc, string name, bool silent)
+ static public string ImplicitParent (string ns)
{
- Type t;
+ int i = ns.LastIndexOf (".");
+ if (i < 0)
+ return null;
+
+ return ns.Substring (0, i);
+ }
- t = type_manager.LookupType (MakeFQN (tc.Namespace.Name, name));
+ static Type NamespaceLookup (Namespace curr_ns, string name, Location loc)
+ {
+ Type t;
+
+ //
+ // Try in the current namespace and all its implicit parents
+ //
+ for (string ns = curr_ns.Name; ns != null; ns = ImplicitParent (ns)) {
+ t = TypeManager.LookupType (MakeFQN (ns, name));
+ if (t != null)
+ return t;
+ }
+
+ //
+ // It's possible that name already is fully qualified. So we do
+ // a simple direct lookup without adding any namespace names
+ //
+ t = TypeManager.LookupType (name);
if (t != null)
return t;
- for (Namespace ns = tc.Namespace; ns != null; ns = ns.Parent){
+ //
+ // Try the aliases in the current namespace
+ //
+ string alias = curr_ns.LookupAlias (name);
+
+ if (alias != null) {
+ t = TypeManager.LookupType (alias);
+ if (t != null)
+ return t;
+
+ t = TypeManager.LookupType (MakeFQN (alias, name));
+ if (t != null)
+ return t;
+ }
+
+ for (Namespace ns = curr_ns; ns != null; ns = ns.Parent) {
+ //
+ // Look in the namespace ns
+ //
+ t = TypeManager.LookupType (MakeFQN (ns.Name, name));
+ if (t != null)
+ return t;
+
+ //
+ // Then try with the using clauses
+ //
ArrayList using_list = ns.UsingTable;
if (using_list == null)
continue;
- foreach (string n in using_list){
- t = type_manager.LookupType (MakeFQN (n, name));
+ Type match = null;
+ foreach (Namespace.UsingEntry ue in using_list) {
+ match = TypeManager.LookupType (MakeFQN (ue.Name, name));
+ if (match != null){
+ if (t != null){
+ DeclSpace.Error_AmbiguousTypeReference (loc, name, t, match);
+ return null;
+ }
+
+ t = match;
+ ue.Used = true;
+ }
+ }
+ if (t != null)
+ return t;
+
+ //
+ // Try with aliases
+ //
+ string a = ns.LookupAlias (name);
+ if (a != null) {
+ t = TypeManager.LookupType (a);
+ if (t != null)
+ return t;
+
+ t = TypeManager.LookupType (MakeFQN (a, name));
if (t != null)
return t;
}
}
+ return null;
+ }
+
+ //
+ // Public function used to locate types, this can only
+ // be used after the ResolveTree function has been invoked.
+ //
+ // Returns: Type or null if they type can not be found.
+ //
+ // Come to think of it, this should be a DeclSpace
+ //
+ static public Type LookupType (DeclSpace ds, string name, bool silent, Location loc)
+ {
+ Type t;
+
+ if (ds.Cache.Contains (name)){
+ t = (Type) ds.Cache [name];
+ if (t != null)
+ return t;
+ } else {
+ //
+ // For the case the type we are looking for is nested within this one
+ // or is in any base class
+ //
+ DeclSpace containing_ds = ds;
+ while (containing_ds != null){
+ Type current_type = containing_ds.TypeBuilder;
+
+ while (current_type != null) {
+ //
+ // nested class
+ //
+ t = TypeManager.LookupType (current_type.FullName + "." + name);
+ if (t != null){
+ ds.Cache [name] = t;
+ return t;
+ }
+
+ current_type = current_type.BaseType;
+ }
+
+ containing_ds = containing_ds.Parent;
+ }
+
+ t = NamespaceLookup (ds.Namespace, name, loc);
+ if (t != null){
+ ds.Cache [name] = t;
+ return t;
+ }
+ }
+
if (!silent)
- report.Error (246, "Can not find type `"+name+"'");
+ Report.Error (246, loc, "Cannot find type `"+name+"'");
return null;
}
- public Type LookupType (TypeContainer tc, string name)
+ // <summary>
+ // This is the silent version of LookupType, you can use this
+ // to `probe' for a type
+ // </summary>
+ static public Type LookupType (TypeContainer tc, string name, Location loc)
{
- return LookupType (tc, name, true);
+ return LookupType (tc, name, true, loc);
}
- public bool IsNamespace (string name)
+ static public bool IsNamespace (string name)
{
- Console.WriteLine ("FIXME: IsNamespace returns false always!");
+ Namespace ns;
+
+ if (tree.Namespaces != null){
+ ns = (Namespace) tree.Namespaces [name];
+
+ if (ns != null)
+ return true;
+ }
+
return false;
}
+
+ static void Report1530 (Location loc)
+ {
+ Report.Error (1530, loc, "Keyword new not allowed for namespace elements");
+ }
+
+ static public void PopulateCoreType (TypeContainer root, string name)
+ {
+ DeclSpace ds = (DeclSpace) root.GetDefinition (name);
+
+ ds.DefineMembers (root);
+ ds.Define (root);
+ }
+
+ static public void BootCorlib_PopulateCoreTypes ()
+ {
+ TypeContainer root = tree.Types;
+
+ PopulateCoreType (root, "System.Object");
+ PopulateCoreType (root, "System.ValueType");
+ PopulateCoreType (root, "System.Attribute");
+ }
// <summary>
// Populates the structs and classes with fields and methods
//
// This is invoked after all interfaces, structs and classes
// have been defined through `ResolveTree'
- public void PopulateTypes ()
+ static public void PopulateTypes ()
{
- Hashtable ifaces, classes;
+ TypeContainer root = Tree.Types;
+
+ if (attribute_types != null)
+ foreach (TypeContainer tc in attribute_types)
+ tc.DefineMembers (root);
- if ((ifaces = tree.Interfaces) != null){
- foreach (DictionaryEntry de in ifaces){
- Interface iface = (Interface) de.Value;
+ if (interface_resolve_order != null){
+ foreach (Interface iface in interface_resolve_order)
+ if ((iface.ModFlags & Modifiers.NEW) == 0)
+ iface.DefineMembers (root);
+ else
+ Report1530 (iface.Location);
+ }
- iface.Populate ();
- }
+
+ if (type_container_resolve_order != null){
+ if (RootContext.StdLib){
+ foreach (TypeContainer tc in type_container_resolve_order) {
+ if ((tc.ModFlags & Modifiers.NEW) == 0)
+ tc.DefineMembers (root);
+ else
+ Report1530 (tc.Location);
+ }
+ } else {
+ foreach (TypeContainer tc in type_container_resolve_order) {
+ // When compiling corlib, these types have already been
+ // populated from BootCorlib_PopulateCoreTypes ().
+ if (((tc.Name == "System.Object") ||
+ (tc.Name == "System.Attribute") ||
+ (tc.Name == "System.ValueType")))
+ continue;
+
+ if ((tc.ModFlags & Modifiers.NEW) == 0)
+ tc.DefineMembers (root);
+ else
+ Report1530 (tc.Location);
+ }
+ }
}
- if ((classes = tree.Classes) != null){
- foreach (DictionaryEntry de in classes){
- TypeContainer tc = (TypeContainer) de.Value;
+ ArrayList delegates = root.Delegates;
+ if (delegates != null){
+ foreach (Delegate d in delegates)
+ if ((d.ModFlags & Modifiers.NEW) == 0)
+ d.DefineMembers (root);
+ else
+ Report1530 (d.Location);
+ }
- tc.Populate ();
- }
+ ArrayList enums = root.Enums;
+ if (enums != null){
+ foreach (Enum en in enums)
+ if ((en.ModFlags & Modifiers.NEW) == 0)
+ en.DefineMembers (root);
+ else
+ Report1530 (en.Location);
}
}
- public void EmitCode ()
+ static public void DefineTypes ()
{
- Hashtable classes;
+ TypeContainer root = Tree.Types;
+
+ if (attribute_types != null)
+ foreach (TypeContainer tc in attribute_types)
+ tc.Define (root);
- if ((classes = tree.Classes) != null){
- foreach (DictionaryEntry de in classes){
- TypeContainer tc = (TypeContainer) de.Value;
+ if (interface_resolve_order != null){
+ foreach (Interface iface in interface_resolve_order)
+ if ((iface.ModFlags & Modifiers.NEW) == 0)
+ iface.Define (root);
+ }
- tc.Emit ();
+
+ if (type_container_resolve_order != null){
+ foreach (TypeContainer tc in type_container_resolve_order) {
+ // When compiling corlib, these types have already been
+ // populated from BootCorlib_PopulateCoreTypes ().
+ if (!RootContext.StdLib &&
+ ((tc.Name == "System.Object") ||
+ (tc.Name == "System.Attribute") ||
+ (tc.Name == "System.ValueType")))
+ continue;
+
+ if ((tc.ModFlags & Modifiers.NEW) == 0)
+ tc.Define (root);
}
}
- }
-
- // <summary>
- // Compiling against Standard Libraries property.
- // </summary>
- public bool StdLib {
- get {
- return stdlib;
+
+ ArrayList delegates = root.Delegates;
+ if (delegates != null){
+ foreach (Delegate d in delegates)
+ if ((d.ModFlags & Modifiers.NEW) == 0)
+ d.Define (root);
}
- set {
- stdlib = value;
+ ArrayList enums = root.Enums;
+ if (enums != null){
+ foreach (Enum en in enums)
+ if ((en.ModFlags & Modifiers.NEW) == 0)
+ en.Define (root);
}
}
- public Report Report {
- get {
- return report;
+ static public void EmitCode ()
+ {
+ //
+ // Because of the strange way in which we do things, global
+ // attributes must be processed first.
+ //
+ if (global_attributes.Count > 0){
+ AssemblyBuilder ab = CodeGen.AssemblyBuilder;
+ TypeContainer dummy = new TypeContainer (null, "", new Location (-1));
+ EmitContext temp_ec = new EmitContext (
+ dummy, Mono.CSharp.Location.Null, null, null, 0, false);
+
+ foreach (DictionaryEntry de in global_attributes){
+ Namespace ns = (Namespace) de.Key;
+ Attributes attrs = (Attributes) de.Value;
+
+ dummy.Namespace = ns;
+ Attribute.ApplyAttributes (temp_ec, ab, ab, attrs);
+ }
}
- }
+ if (attribute_types != null)
+ foreach (TypeContainer tc in attribute_types)
+ tc.Emit ();
+
+ if (type_container_resolve_order != null) {
+ foreach (TypeContainer tc in type_container_resolve_order)
+ tc.EmitConstants ();
+
+ foreach (TypeContainer tc in type_container_resolve_order)
+ tc.Emit ();
+ }
+
+ if (Unsafe) {
+ if (TypeManager.unverifiable_code_ctor == null) {
+ Console.WriteLine ("Internal error ! Cannot set unverifiable code attribute.");
+ return;
+ }
+
+ CustomAttributeBuilder cb = new CustomAttributeBuilder (TypeManager.unverifiable_code_ctor,
+ new object [0]);
+ CodeGen.ModuleBuilder.SetCustomAttribute (cb);
+ }
+ }
+
//
// Public Field, used to track which method is the public entry
// point.
//
- public MethodInfo EntryPoint;
+ static public MethodInfo EntryPoint;
+
+ //
+ // Track the location of the entry point.
+ //
+ static public Location EntryPointLocation;
+
+ //
+ // These are used to generate unique names on the structs and fields.
+ //
+ static int field_count;
+
+ //
+ // Makes an initialized struct, returns the field builder that
+ // references the data. Thanks go to Sergey Chaban for researching
+ // how to do this. And coming up with a shorter mechanism than I
+ // was able to figure out.
+ //
+ // This works but makes an implicit public struct $ArrayType$SIZE and
+ // makes the fields point to it. We could get more control if we did
+ // use instead:
+ //
+ // 1. DefineNestedType on the impl_details_class with our struct.
+ //
+ // 2. Define the field on the impl_details_class
+ //
+ static public FieldBuilder MakeStaticData (byte [] data)
+ {
+ FieldBuilder fb;
+ int size = data.Length;
+
+ if (impl_details_class == null)
+ impl_details_class = CodeGen.ModuleBuilder.DefineType (
+ "<PrivateImplementationDetails>", TypeAttributes.NotPublic, TypeManager.object_type);
+
+ fb = impl_details_class.DefineInitializedData (
+ "$$field-" + (field_count++), data,
+ FieldAttributes.Static | FieldAttributes.Assembly);
+
+ return fb;
+ }
+
+ //
+ // Adds a global attribute that was declared in `container',
+ // the attribute is in `attr', and it was defined at `loc'
+ //
+ static public void AddGlobalAttributeSection (TypeContainer container, AttributeSection attr)
+ {
+ Namespace ns = container.Namespace;
+ Attributes a = (Attributes) global_attributes [ns];
+
+ if (a == null)
+ global_attributes [ns] = new Attributes (attr);
+ else
+ a.AddAttributeSection (attr);
+ }
}
}
+