public class ScopeInfo : CompilerGeneratedClass
{
protected readonly RootScopeInfo RootScope;
+ new public readonly TypeContainer Parent;
public readonly int ID = ++next_id;
public Block ScopeBlock;
static int next_id;
- public ScopeInfo (RootScopeInfo root, Block block)
- : base (root, null, 0, block.StartLocation)
+ public static ScopeInfo CreateScope (Block block)
{
- this.RootScope = root;
- ScopeBlock = block;
+ ToplevelBlock toplevel = block.Toplevel;
+ AnonymousContainer ac = toplevel.AnonymousContainer;
- Report.Debug (64, "NEW SCOPE", this, root, block);
+ if (ac != null)
+ return new ScopeInfo (block, ac.Host);
+ else
+ return new ScopeInfo (block, toplevel.RootScope.Parent);
+ }
- root.AddScope (this);
+ protected ScopeInfo (Block block, TypeContainer parent)
+ : base (parent, block.Toplevel.RootScope.GenericMethod,
+ 0, block.StartLocation)
+ {
+ Parent = parent;
+ RootScope = block.Toplevel.RootScope;
+ ScopeBlock = block;
+
+ Report.Debug (128, "NEW SCOPE", this);
}
- public ScopeInfo (ToplevelBlock toplevel, TypeContainer parent,
- GenericMethod generic, Location loc)
+ protected ScopeInfo (ToplevelBlock toplevel, TypeContainer parent,
+ GenericMethod generic, Location loc)
: base (parent, generic, 0, loc)
{
+ Parent = parent;
RootScope = (RootScopeInfo) this;
ScopeBlock = toplevel;
- Report.Debug (64, "NEW ROOT SCOPE", this);
+ Report.Debug (128, "NEW ROOT SCOPE", this);
}
protected CapturedScope scope_instance;
this, GetType (), scope_initializer, ScopeBlock);
if (scope_initializer == null) {
+ if (!ResolveMembers ())
+ throw new InternalErrorException ();
+ if (!DefineMembers ())
+ throw new InternalErrorException ();
+
scope_initializer = CreateScopeInitializer ();
if (scope_initializer.Resolve (ec) == null)
throw new InternalErrorException ();
{
RootScopeInfo root_scope = toplevel.RootScope;
+ Report.Debug (128, "EMIT SCOPE INSTANCE", toplevel, root_scope, scope);
+
root_scope.EmitScopeInstance (ec);
while (root_scope != scope.RootScope) {
ec.ig.Emit (OpCodes.Ldfld, root_scope.ParentLink.FieldBuilder);
scope, ec.CurrentBlock.ID);
}
+#if FIXME
if (scope != (ScopeInfo) scope.RootScope)
scope.ScopeInstance.Emit (ec);
- }
-
- public static bool CompleteContexts (RootScopeInfo host, Block container)
- {
- if (host != null)
- host.LinkScopes ();
-
- if ((container == null) && (host != null)) {
- if (host.DefineType () == null)
- return false;
- if (!host.ResolveType ())
- return false;
- if (!host.ResolveMembers ())
- return false;
- if (!host.DefineMembers ())
- return false;
- }
-
- return true;
+#endif
}
protected override bool DoResolveMembers ()
Report.Debug (64, "SCOPE INFO RESOLVE MEMBERS", this, GetType (), IsGeneric,
Parent.IsGeneric, GenericMethod);
+#if FIXME
if (RootScope != this)
scope_instance = new CapturedScope (RootScope, this);
+#endif
return base.DoResolveMembers ();
}
+ public Variable CaptureScope (ScopeInfo child)
+ {
+ CheckMembersDefined ();
+ Report.Debug (128, "CAPTURE SCOPE", this, child, child.TypeBuilder);
+ return new CapturedScope (this, child);
+ }
+
public Variable AddLocal (LocalInfo local)
{
Variable var = (Variable) locals [local];
scope_ctor = (ConstructorInfo) mg.Methods [0];
- if (Scope.ScopeInstance == null)
- scope_instance = ec.ig.DeclareLocal (type);
- else {
+ if (Scope.ScopeInstance != null) {
Type root = Scope.RootScope.GetScopeType (ec);
FieldExpr fe = (FieldExpr) Expression.MemberLookup (
type, root, Scope.scope_instance.Field.Name, loc);
Scope.scope_instance.FieldInstance = fe;
}
+ scope_instance = ec.ig.DeclareLocal (type);
+
foreach (CapturedLocal local in Scope.locals.Values) {
FieldExpr fe = (FieldExpr) Expression.MemberLookup (
ec.ContainerType, type, local.Field.Name, loc);
public RootScopeInfo (ToplevelBlock toplevel, TypeContainer parent,
GenericMethod generic, Location loc)
: base (toplevel, parent, generic, loc)
- {
- scopes = new ArrayList ();
- }
+ { }
- ArrayList scopes;
TypeExpr parent_type;
CapturedVariableField parent_link;
CapturedThis this_variable;
return var;
}
- public void AddScope (ScopeInfo scope)
- {
- scopes.Add (scope);
- }
-
- bool linked;
- public void LinkScopes ()
- {
- if (linked)
- return;
-
- linked = true;
- if (ParentHost != null)
- ParentHost.LinkScopes ();
-
- foreach (ScopeInfo si in scopes) {
- if (!si.Define ())
- throw new InternalErrorException ();
- if (si.DefineType () == null)
- throw new InternalErrorException ();
- }
- }
-
protected override ScopeInitializer CreateScopeInitializer ()
{
return new RootScopeInitializer (this);
this.Parameters = parameters;
this.Block = block;
this.Location = loc;
+
+ block.AnonymousContainer = this;
}
public Method Method {
get;
}
+ public abstract ScopeInfo Scope {
+ get;
+ }
+
public abstract string GetSignatureForError ();
public virtual bool Resolve (EmitContext ec)
//
Expression anonymous_delegate;
RootScopeInfo root_scope;
+ ScopeInfo scope;
public AnonymousMethod (AnonymousMethod parent, RootScopeInfo root_scope,
TypeContainer host, GenericMethod generic,
get { return root_scope; }
}
+ public override ScopeInfo Scope {
+ get { return scope; }
+ }
+
public override bool IsIterator {
get { return false; }
}
#endif
member_name = new MemberName (name, Location);
-#if FIXME
Block b;
- ScopeInfo scope = RootScope;
+ scope = RootScope;
for (b = Block; b != null; b = b.Parent) {
if (b.ScopeInfo != null) {
scope = b.ScopeInfo;
}
}
+ Report.Debug (128, "CREATE METHOD HOST", this, RootScope, scope);
+
scope.CheckMembersDefined ();
ArrayList scopes = new ArrayList ();
for (b = b.Parent; b != null; b = b.Parent) {
- if (b.ScopeInfo != null) {
- // b.ScopeInfo.CaptureScope (scope);
+ if (b.ScopeInfo != null)
scopes.Add (b.ScopeInfo);
- }
if (b == container)
break;
}
-#endif
+
+ foreach (ScopeInfo si in scopes) {
+ if (!si.Define ())
+ throw new InternalErrorException ();
+ if (si.DefineType () == null)
+ throw new InternalErrorException ();
+ scope.CaptureScope (si);
+ }
+
+ if (!scope.Define ())
+ throw new InternalErrorException ();
+ if (scope.DefineType () == null)
+ throw new InternalErrorException ();
+
+ Report.Debug (128, "CREATE METHOD HOST #1", this, RootScope, scope, scopes);
return new AnonymousMethodMethod (
- this, RootScope, generic_method, new TypeExpression (ReturnType, Location),
+ this, scope, generic_method, new TypeExpression (ReturnType, Location),
Modifiers.INTERNAL, member_name, Parameters);
}
// Now emit the delegate creation.
//
if ((am.Method.ModFlags & Modifiers.STATIC) == 0) {
- delegate_instance_expression = am.RootScope.GetScopeInitializer (ec);
+ delegate_instance_expression = am.Scope.GetScopeInitializer (ec);
if (delegate_instance_expression == null)
throw new InternalErrorException ();
--- /dev/null
+//
+// codegen.cs: The code generator
+//
+// Author:
+// Miguel de Icaza (miguel@ximian.com)
+//
+// (C) 2001, 2002, 2003 Ximian, Inc.
+// (C) 2004 Novell, Inc.
+//
+
+#if !DEBUG
+ #define PRODUCTION
+#endif
+
+using System;
+using System.IO;
+using System.Collections;
+using System.Collections.Specialized;
+using System.Reflection;
+using System.Reflection.Emit;
+using System.Runtime.InteropServices;
+using System.Security;
+using System.Security.Cryptography;
+using System.Security.Permissions;
+
+using Mono.Security.Cryptography;
+
+namespace Mono.CSharp {
+
+ /// <summary>
+ /// Code generator class.
+ /// </summary>
+ public class CodeGen {
+ static AppDomain current_domain;
+ static public SymbolWriter SymbolWriter;
+
+ public static AssemblyClass Assembly;
+ public static ModuleClass Module;
+
+ static CodeGen ()
+ {
+ Reset ();
+ }
+
+ public static void Reset ()
+ {
+ Assembly = new AssemblyClass ();
+ Module = new ModuleClass (RootContext.Unsafe);
+ }
+
+ public static string Basename (string name)
+ {
+ int pos = name.LastIndexOf ('/');
+
+ if (pos != -1)
+ return name.Substring (pos + 1);
+
+ pos = name.LastIndexOf ('\\');
+ if (pos != -1)
+ return name.Substring (pos + 1);
+
+ return name;
+ }
+
+ public static string Dirname (string name)
+ {
+ int pos = name.LastIndexOf ('/');
+
+ if (pos != -1)
+ return name.Substring (0, pos);
+
+ pos = name.LastIndexOf ('\\');
+ if (pos != -1)
+ return name.Substring (0, pos);
+
+ return ".";
+ }
+
+ static public string FileName;
+
+ //
+ // Initializes the symbol writer
+ //
+ static void InitializeSymbolWriter (string filename)
+ {
+ SymbolWriter = SymbolWriter.GetSymbolWriter (Module.Builder, filename);
+
+ //
+ // If we got an ISymbolWriter instance, initialize it.
+ //
+ if (SymbolWriter == null) {
+ Report.Warning (
+ -18, 1, "Could not find the symbol writer assembly (Mono.CompilerServices.SymbolWriter.dll). This is normally an installation problem. Please make sure to compile and install the mcs/class/Mono.CompilerServices.SymbolWriter directory.");
+ return;
+ }
+ }
+
+ //
+ // Initializes the code generator variables
+ //
+ static public bool Init (string name, string output, bool want_debugging_support)
+ {
+ FileName = output;
+ AssemblyName an = Assembly.GetAssemblyName (name, output);
+ if (an == null)
+ return false;
+
+ if (an.KeyPair != null) {
+ // If we are going to strong name our assembly make
+ // sure all its refs are strong named
+ foreach (Assembly a in RootNamespace.Global.Assemblies) {
+ AssemblyName ref_name = a.GetName ();
+ byte [] b = ref_name.GetPublicKeyToken ();
+ if (b == null || b.Length == 0) {
+ Report.Error (1577, "Assembly generation failed " +
+ "-- Referenced assembly '" +
+ ref_name.Name +
+ "' does not have a strong name.");
+ //Environment.Exit (1);
+ }
+ }
+ }
+
+ current_domain = AppDomain.CurrentDomain;
+
+ try {
+ Assembly.Builder = current_domain.DefineDynamicAssembly (an,
+ AssemblyBuilderAccess.Save, Dirname (name));
+ }
+ catch (ArgumentException) {
+ // specified key may not be exportable outside it's container
+ if (RootContext.StrongNameKeyContainer != null) {
+ Report.Error (1548, "Could not access the key inside the container `" +
+ RootContext.StrongNameKeyContainer + "'.");
+ Environment.Exit (1);
+ }
+ return false;
+ }
+ catch (CryptographicException) {
+ if ((RootContext.StrongNameKeyContainer != null) || (RootContext.StrongNameKeyFile != null)) {
+ Report.Error (1548, "Could not use the specified key to strongname the assembly.");
+ Environment.Exit (1);
+ }
+ return false;
+ }
+
+#if GMCS_SOURCE
+ // Get the complete AssemblyName from the builder
+ // (We need to get the public key and token)
+ Assembly.Name = Assembly.Builder.GetName ();
+#endif
+
+ //
+ // Pass a path-less name to DefineDynamicModule. Wonder how
+ // this copes with output in different directories then.
+ // FIXME: figure out how this copes with --output /tmp/blah
+ //
+ // If the third argument is true, the ModuleBuilder will dynamically
+ // load the default symbol writer.
+ //
+ Module.Builder = Assembly.Builder.DefineDynamicModule (
+ Basename (name), Basename (output), false);
+
+ if (want_debugging_support)
+ InitializeSymbolWriter (output);
+
+ return true;
+ }
+
+ static public void Save (string name)
+ {
+ try {
+ Assembly.Builder.Save (Basename (name));
+
+ if (SymbolWriter != null)
+ SymbolWriter.WriteSymbolFile ();
+ }
+ catch (COMException) {
+ if ((RootContext.StrongNameKeyFile == null) || (!RootContext.StrongNameDelaySign))
+ throw;
+
+ // FIXME: it seems Microsoft AssemblyBuilder doesn't like to delay sign assemblies
+ Report.Error (1548, "Couldn't delay-sign the assembly with the '" +
+ RootContext.StrongNameKeyFile +
+ "', Use MCS with the Mono runtime or CSC to compile this assembly.");
+ }
+ catch (System.IO.IOException io) {
+ Report.Error (16, "Could not write to file `"+name+"', cause: " + io.Message);
+ }
+ catch (System.UnauthorizedAccessException ua) {
+ Report.Error (16, "Could not write to file `"+name+"', cause: " + ua.Message);
+ }
+ }
+ }
+
+
+ public interface IResolveContext
+ {
+ DeclSpace DeclContainer { get; }
+ bool IsInObsoleteScope { get; }
+ bool IsInUnsafeScope { get; }
+
+ // the declcontainer to lookup for type-parameters. Should only use LookupGeneric on it.
+ //
+ // FIXME: This is somewhat of a hack. We don't need a full DeclSpace for this. We just need the
+ // current type parameters in scope. IUIC, that will require us to rewrite GenericMethod.
+ // Maybe we can replace this with a 'LookupGeneric (string)' instead, but we'll have to
+ // handle generic method overrides differently
+ DeclSpace GenericDeclContainer { get; }
+ }
+
+ /// <summary>
+ /// An Emit Context is created for each body of code (from methods,
+ /// properties bodies, indexer bodies or constructor bodies)
+ /// </summary>
+ public class EmitContext : IResolveContext {
+
+ DeclSpace declSpace;
+ public DeclSpace TypeContainer;
+ public ILGenerator ig;
+
+ [Flags]
+ public enum Flags : byte {
+ /// <summary>
+ /// This flag tracks the `checked' state of the compilation,
+ /// it controls whether we should generate code that does overflow
+ /// checking, or if we generate code that ignores overflows.
+ ///
+ /// The default setting comes from the command line option to generate
+ /// checked or unchecked code plus any source code changes using the
+ /// checked/unchecked statements or expressions. Contrast this with
+ /// the ConstantCheckState flag.
+ /// </summary>
+ CheckState = 1 << 0,
+
+ /// <summary>
+ /// The constant check state is always set to `true' and cant be changed
+ /// from the command line. The source code can change this setting with
+ /// the `checked' and `unchecked' statements and expressions.
+ /// </summary>
+ ConstantCheckState = 1 << 1,
+
+ AllCheckStateFlags = CheckState | ConstantCheckState,
+
+ /// <summary>
+ /// Whether we are inside an unsafe block
+ /// </summary>
+ InUnsafe = 1 << 2,
+
+ InCatch = 1 << 3,
+ InFinally = 1 << 4,
+
+ /// <summary>
+ /// Whether control flow analysis is enabled
+ /// </summary>
+ DoFlowAnalysis = 1 << 5,
+
+ /// <summary>
+ /// Whether control flow analysis is disabled on structs
+ /// (only meaningful when DoFlowAnalysis is set)
+ /// </summary>
+ OmitStructFlowAnalysis = 1 << 6
+ }
+
+ Flags flags;
+
+ /// <summary>
+ /// Whether we are emitting code inside a static or instance method
+ /// </summary>
+ public bool IsStatic;
+
+ /// <summary>
+ /// Whether the actual created method is static or instance method.
+ /// Althoug the method might be declared as `static', if an anonymous
+ /// method is involved, we might turn this into an instance method.
+ ///
+ /// So this reflects the low-level staticness of the method, while
+ /// IsStatic represents the semantic, high-level staticness.
+ /// </summary>
+ public bool MethodIsStatic;
+
+ /// <summary>
+ /// Whether we are emitting a field initializer
+ /// </summary>
+ public bool IsFieldInitializer;
+
+ /// <summary>
+ /// The value that is allowed to be returned or NULL if there is no
+ /// return type.
+ /// </summary>
+ public readonly Type ReturnType;
+
+ /// <summary>
+ /// Points to the Type (extracted from the TypeContainer) that
+ /// declares this body of code
+ /// </summary>
+ public Type ContainerType;
+
+ /// <summary>
+ /// Whether this is generating code for a constructor
+ /// </summary>
+ public bool IsConstructor;
+
+ /// <summary>
+ /// Keeps track of the Type to LocalBuilder temporary storage created
+ /// to store structures (used to compute the address of the structure
+ /// value on structure method invocations)
+ /// </summary>
+ public Hashtable temporary_storage;
+
+ public Block CurrentBlock;
+
+ public int CurrentFile;
+
+ /// <summary>
+ /// The location where we store the return value.
+ /// </summary>
+ LocalBuilder return_value;
+
+ /// <summary>
+ /// The location where return has to jump to return the
+ /// value
+ /// </summary>
+ public Label ReturnLabel;
+
+ /// <summary>
+ /// If we already defined the ReturnLabel
+ /// </summary>
+ public bool HasReturnLabel;
+
+ /// <summary>
+ /// Whether we are inside an iterator block.
+ /// </summary>
+ public bool InIterator;
+
+ public bool IsLastStatement;
+
+ /// <summary>
+ /// Whether we are in a `fixed' initialization
+ /// </summary>
+ public bool InFixedInitializer;
+
+ /// <summary>
+ /// Whether we are inside an anonymous method.
+ /// </summary>
+ public AnonymousContainer CurrentAnonymousMethod;
+
+ /// <summary>
+ /// Location for this EmitContext
+ /// </summary>
+ public Location loc;
+
+ /// <summary>
+ /// Inside an enum definition, we do not resolve enumeration values
+ /// to their enumerations, but rather to the underlying type/value
+ /// This is so EnumVal + EnumValB can be evaluated.
+ ///
+ /// There is no "E operator + (E x, E y)", so during an enum evaluation
+ /// we relax the rules
+ /// </summary>
+ public bool InEnumContext;
+
+ public readonly IResolveContext ResolveContext;
+
+ /// <summary>
+ /// The current iterator
+ /// </summary>
+ public Iterator CurrentIterator {
+ get { return CurrentAnonymousMethod as Iterator; }
+ }
+
+ /// <summary>
+ /// Whether we are in the resolving stage or not
+ /// </summary>
+ enum Phase {
+ Created,
+ Resolving,
+ Emitting
+ }
+
+ bool isAnonymousMethodAllowed = true;
+
+ Phase current_phase;
+ FlowBranching current_flow_branching;
+
+ static int next_id = 0;
+ int id = ++next_id;
+
+ public override string ToString ()
+ {
+ return String.Format ("EmitContext ({0}:{1})", id,
+ CurrentAnonymousMethod, loc);
+ }
+
+ public EmitContext (IResolveContext rc, DeclSpace parent, DeclSpace ds, Location l, ILGenerator ig,
+ Type return_type, int code_flags, bool is_constructor)
+ {
+ this.ResolveContext = rc;
+ this.ig = ig;
+
+ TypeContainer = parent;
+ this.declSpace = ds;
+ if (RootContext.Checked)
+ flags |= Flags.CheckState;
+ flags |= Flags.ConstantCheckState;
+
+#if GMCS_SOURCE
+ if ((return_type is TypeBuilder) && return_type.IsGenericTypeDefinition)
+ throw new InternalErrorException ();
+#endif
+
+ IsStatic = (code_flags & Modifiers.STATIC) != 0;
+ MethodIsStatic = IsStatic;
+ InIterator = (code_flags & Modifiers.METHOD_YIELDS) != 0;
+ ReturnType = return_type;
+ IsConstructor = is_constructor;
+ CurrentBlock = null;
+ CurrentFile = 0;
+ current_phase = Phase.Created;
+
+ if (parent != null){
+ // Can only be null for the ResolveType contexts.
+ ContainerType = parent.TypeBuilder;
+ if (rc.IsInUnsafeScope)
+ flags |= Flags.InUnsafe;
+ }
+ loc = l;
+
+ if (ReturnType == TypeManager.void_type)
+ ReturnType = null;
+ }
+
+ public EmitContext (IResolveContext rc, DeclSpace ds, Location l, ILGenerator ig,
+ Type return_type, int code_flags, bool is_constructor)
+ : this (rc, ds, ds, l, ig, return_type, code_flags, is_constructor)
+ {
+ }
+
+ public EmitContext (IResolveContext rc, DeclSpace ds, Location l, ILGenerator ig,
+ Type return_type, int code_flags)
+ : this (rc, ds, ds, l, ig, return_type, code_flags, false)
+ {
+ }
+
+ public DeclSpace DeclContainer {
+ get { return declSpace; }
+ set { declSpace = value; }
+ }
+
+ public DeclSpace GenericDeclContainer {
+ get { return DeclContainer; }
+ }
+
+ public bool CheckState {
+ get { return (flags & Flags.CheckState) != 0; }
+ }
+
+ public bool ConstantCheckState {
+ get { return (flags & Flags.ConstantCheckState) != 0; }
+ }
+
+ public bool InUnsafe {
+ get { return (flags & Flags.InUnsafe) != 0; }
+ }
+
+ public bool InCatch {
+ get { return (flags & Flags.InCatch) != 0; }
+ }
+
+ public bool InFinally {
+ get { return (flags & Flags.InFinally) != 0; }
+ }
+
+ public bool DoFlowAnalysis {
+ get { return (flags & Flags.DoFlowAnalysis) != 0; }
+ }
+
+ public bool OmitStructFlowAnalysis {
+ get { return (flags & Flags.OmitStructFlowAnalysis) != 0; }
+ }
+
+ // utility helper for CheckExpr, UnCheckExpr, Checked and Unchecked statements
+ // it's public so that we can use a struct at the callsite
+ public struct FlagsHandle : IDisposable
+ {
+ EmitContext ec;
+ Flags invmask, oldval;
+ internal FlagsHandle (EmitContext ec, Flags mask, Flags val)
+ {
+ this.ec = ec;
+ invmask = ~mask;
+ oldval = ec.flags & mask;
+ ec.flags = (ec.flags & invmask) | (val & mask);
+ }
+ public void Dispose ()
+ {
+ ec.flags = (ec.flags & invmask) | oldval;
+ }
+ }
+
+ // Temporarily set all the given flags to the given value. Should be used in an 'using' statement
+ public FlagsHandle With (Flags bits, bool enable)
+ {
+ return new FlagsHandle (this, bits, enable ? bits : 0);
+ }
+
+ public FlagsHandle WithFlowAnalysis (bool do_flow_analysis, bool omit_struct_analysis)
+ {
+ Flags newflags =
+ (do_flow_analysis ? Flags.DoFlowAnalysis : 0) |
+ (omit_struct_analysis ? Flags.OmitStructFlowAnalysis : 0);
+ return new FlagsHandle (this, Flags.DoFlowAnalysis | Flags.OmitStructFlowAnalysis, newflags);
+ }
+
+ public bool IsInObsoleteScope {
+ get { return ResolveContext.IsInObsoleteScope; }
+ }
+
+ public bool IsInUnsafeScope {
+ get { return InUnsafe || ResolveContext.IsInUnsafeScope; }
+ }
+
+ public bool IsAnonymousMethodAllowed {
+ get { return isAnonymousMethodAllowed; }
+ set { isAnonymousMethodAllowed = value; }
+ }
+
+ public FlowBranching CurrentBranching {
+ get { return current_flow_branching; }
+ }
+
+ // <summary>
+ // Starts a new code branching. This inherits the state of all local
+ // variables and parameters from the current branching.
+ // </summary>
+ public FlowBranching StartFlowBranching (FlowBranching.BranchingType type, Location loc)
+ {
+ current_flow_branching = FlowBranching.CreateBranching (CurrentBranching, type, null, loc);
+ return current_flow_branching;
+ }
+
+ // <summary>
+ // Starts a new code branching for block `block'.
+ // </summary>
+ public FlowBranching StartFlowBranching (Block block)
+ {
+ FlowBranching.BranchingType type;
+
+ if ((CurrentBranching != null) &&
+ (CurrentBranching.Type == FlowBranching.BranchingType.Switch))
+ type = FlowBranching.BranchingType.SwitchSection;
+ else
+ type = FlowBranching.BranchingType.Block;
+
+ flags |= Flags.DoFlowAnalysis;
+
+ current_flow_branching = FlowBranching.CreateBranching (
+ CurrentBranching, type, block, block.StartLocation);
+ return current_flow_branching;
+ }
+
+ public FlowBranchingException StartFlowBranching (ExceptionStatement stmt)
+ {
+ FlowBranchingException branching = new FlowBranchingException (CurrentBranching, stmt);
+ current_flow_branching = branching;
+ return branching;
+ }
+
+ public FlowBranchingLabeled StartFlowBranching (LabeledStatement stmt)
+ {
+ FlowBranchingLabeled branching = new FlowBranchingLabeled (CurrentBranching, stmt);
+ current_flow_branching = branching;
+ return branching;
+ }
+
+ public FlowBranchingToplevel StartFlowBranching (ToplevelBlock stmt)
+ {
+ FlowBranchingToplevel branching = new FlowBranchingToplevel (CurrentBranching, stmt);
+ current_flow_branching = branching;
+ return branching;
+ }
+
+ // <summary>
+ // Ends a code branching. Merges the state of locals and parameters
+ // from all the children of the ending branching.
+ // </summary>
+ public FlowBranching.UsageVector DoEndFlowBranching ()
+ {
+ FlowBranching old = current_flow_branching;
+ current_flow_branching = current_flow_branching.Parent;
+
+ return current_flow_branching.MergeChild (old);
+ }
+
+ // <summary>
+ // Ends a code branching. Merges the state of locals and parameters
+ // from all the children of the ending branching.
+ // </summary>
+ public FlowBranching.Reachability EndFlowBranching ()
+ {
+ FlowBranching.UsageVector vector = DoEndFlowBranching ();
+
+ return vector.Reachability;
+ }
+
+ // <summary>
+ // Kills the current code branching. This throws away any changed state
+ // information and should only be used in case of an error.
+ // </summary>
+ public void KillFlowBranching ()
+ {
+ current_flow_branching = current_flow_branching.Parent;
+ }
+
+ public bool MustCaptureVariable (LocalInfo local)
+ {
+ if (CurrentAnonymousMethod == null)
+ return false;
+ if (CurrentAnonymousMethod.IsIterator)
+ return true;
+ return local.Block.Toplevel != CurrentBlock.Toplevel;
+ }
+
+ public void EmitMeta (ToplevelBlock b)
+ {
+ b.EmitMeta (this);
+
+ if (HasReturnLabel)
+ ReturnLabel = ig.DefineLabel ();
+ }
+
+ //
+ // Here until we can fix the problem with Mono.CSharp.Switch, which
+ // currently can not cope with ig == null during resolve (which must
+ // be fixed for switch statements to work on anonymous methods).
+ //
+ public void EmitTopBlock (IMethodData md, ToplevelBlock block)
+ {
+ if (block == null)
+ return;
+
+ bool unreachable;
+
+ if (ResolveTopBlock (null, block, md.ParameterInfo, md, out unreachable)){
+ EmitMeta (block);
+
+ current_phase = Phase.Emitting;
+ EmitResolvedTopBlock (block, unreachable);
+ }
+ }
+
+ bool resolved;
+
+ public bool ResolveTopBlock (EmitContext anonymous_method_host, ToplevelBlock block,
+ Parameters ip, IMethodData md, out bool unreachable)
+ {
+ current_phase = Phase.Resolving;
+
+ unreachable = false;
+
+ if (resolved)
+ return true;
+
+ if (!loc.IsNull)
+ CurrentFile = loc.File;
+
+#if PRODUCTION
+ try {
+#endif
+ if (!block.ResolveMeta (this, ip))
+ return false;
+
+ if ((md != null) && (md.Iterator != null)) {
+ if (!md.Iterator.Resolve (this))
+ return false;
+ }
+
+ using (this.With (EmitContext.Flags.DoFlowAnalysis, true)) {
+ FlowBranchingToplevel top_level;
+ if (anonymous_method_host != null)
+ top_level = new FlowBranchingToplevel (anonymous_method_host.CurrentBranching, block);
+ else
+ top_level = block.TopLevelBranching;
+
+ current_flow_branching = top_level;
+ bool ok = block.Resolve (this);
+ current_flow_branching = null;
+
+ if (!ok)
+ return false;
+
+ FlowBranching.Reachability reachability = top_level.End ();
+ if (reachability.IsUnreachable)
+ unreachable = true;
+ }
+#if PRODUCTION
+ } catch (Exception e) {
+ Console.WriteLine ("Exception caught by the compiler while compiling:");
+ Console.WriteLine (" Block that caused the problem begin at: " + loc);
+
+ if (CurrentBlock != null){
+ Console.WriteLine (" Block being compiled: [{0},{1}]",
+ CurrentBlock.StartLocation, CurrentBlock.EndLocation);
+ }
+ Console.WriteLine (e.GetType ().FullName + ": " + e.Message);
+ throw;
+ }
+#endif
+
+ if (ReturnType != null && !unreachable) {
+ if (CurrentAnonymousMethod == null) {
+ Report.Error (161, md.Location, "`{0}': not all code paths return a value", md.GetSignatureForError ());
+ return false;
+ } else if (!CurrentAnonymousMethod.IsIterator) {
+ Report.Error (1643, CurrentAnonymousMethod.Location, "Not all code paths return a value in anonymous method of type `{0}'",
+ CurrentAnonymousMethod.GetSignatureForError ());
+ return false;
+ }
+ }
+
+ resolved = true;
+ return true;
+ }
+
+ public void EmitResolvedTopBlock (ToplevelBlock block, bool unreachable)
+ {
+ if (block != null)
+ block.Emit (this);
+
+ if (HasReturnLabel)
+ ig.MarkLabel (ReturnLabel);
+
+ if (return_value != null){
+ ig.Emit (OpCodes.Ldloc, return_value);
+ ig.Emit (OpCodes.Ret);
+ } else {
+ //
+ // If `HasReturnLabel' is set, then we already emitted a
+ // jump to the end of the method, so we must emit a `ret'
+ // there.
+ //
+ // Unfortunately, System.Reflection.Emit automatically emits
+ // a leave to the end of a finally block. This is a problem
+ // if no code is following the try/finally block since we may
+ // jump to a point after the end of the method.
+ // As a workaround, we're always creating a return label in
+ // this case.
+ //
+
+ bool in_iterator = (CurrentAnonymousMethod != null) &&
+ CurrentAnonymousMethod.IsIterator && InIterator;
+
+ if ((block != null) && block.IsDestructor) {
+ // Nothing to do; S.R.E automatically emits a leave.
+ } else if (HasReturnLabel || (!unreachable && !in_iterator)) {
+ if (ReturnType != null)
+ ig.Emit (OpCodes.Ldloc, TemporaryReturn ());
+ ig.Emit (OpCodes.Ret);
+ }
+ }
+ }
+
+ /// <summary>
+ /// This is called immediately before emitting an IL opcode to tell the symbol
+ /// writer to which source line this opcode belongs.
+ /// </summary>
+ public void Mark (Location loc, bool check_file)
+ {
+ if ((CodeGen.SymbolWriter == null) || loc.IsNull)
+ return;
+
+ if (check_file && (CurrentFile != loc.File))
+ return;
+
+ CodeGen.SymbolWriter.MarkSequencePoint (ig, loc.Row, loc.Column);
+ }
+
+ public void DefineLocalVariable (string name, LocalBuilder builder)
+ {
+ if (CodeGen.SymbolWriter == null)
+ return;
+
+ CodeGen.SymbolWriter.DefineLocalVariable (name, builder);
+ }
+
+ public void BeginScope ()
+ {
+ ig.BeginScope();
+
+ if (CodeGen.SymbolWriter != null)
+ CodeGen.SymbolWriter.OpenScope(ig);
+ }
+
+ public void EndScope ()
+ {
+ ig.EndScope();
+
+ if (CodeGen.SymbolWriter != null)
+ CodeGen.SymbolWriter.CloseScope(ig);
+ }
+
+ /// <summary>
+ /// Returns a temporary storage for a variable of type t as
+ /// a local variable in the current body.
+ /// </summary>
+ public LocalBuilder GetTemporaryLocal (Type t)
+ {
+ if (temporary_storage != null) {
+ object o = temporary_storage [t];
+ if (o != null) {
+ if (o is Stack) {
+ Stack s = (Stack) o;
+ o = s.Count == 0 ? null : s.Pop ();
+ } else {
+ temporary_storage.Remove (t);
+ }
+ }
+ if (o != null)
+ return (LocalBuilder) o;
+ }
+ return ig.DeclareLocal (t);
+ }
+
+ public void FreeTemporaryLocal (LocalBuilder b, Type t)
+ {
+ Stack s;
+
+ if (temporary_storage == null) {
+ temporary_storage = new Hashtable ();
+ temporary_storage [t] = b;
+ return;
+ }
+ object o = temporary_storage [t];
+ if (o == null) {
+ temporary_storage [t] = b;
+ return;
+ }
+ if (o is Stack) {
+ s = (Stack) o;
+ } else {
+ s = new Stack ();
+ s.Push (o);
+ temporary_storage [t] = s;
+ }
+ s.Push (b);
+ }
+
+ /// <summary>
+ /// Current loop begin and end labels.
+ /// </summary>
+ public Label LoopBegin, LoopEnd;
+
+ /// <summary>
+ /// Default target in a switch statement. Only valid if
+ /// InSwitch is true
+ /// </summary>
+ public Label DefaultTarget;
+
+ /// <summary>
+ /// If this is non-null, points to the current switch statement
+ /// </summary>
+ public Switch Switch;
+
+ /// <summary>
+ /// ReturnValue creates on demand the LocalBuilder for the
+ /// return value from the function. By default this is not
+ /// used. This is only required when returns are found inside
+ /// Try or Catch statements.
+ ///
+ /// This method is typically invoked from the Emit phase, so
+ /// we allow the creation of a return label if it was not
+ /// requested during the resolution phase. Could be cleaned
+ /// up, but it would replicate a lot of logic in the Emit phase
+ /// of the code that uses it.
+ /// </summary>
+ public LocalBuilder TemporaryReturn ()
+ {
+ if (return_value == null){
+ return_value = ig.DeclareLocal (ReturnType);
+ if (!HasReturnLabel){
+ ReturnLabel = ig.DefineLabel ();
+ HasReturnLabel = true;
+ }
+ }
+
+ return return_value;
+ }
+
+ /// <summary>
+ /// This method is used during the Resolution phase to flag the
+ /// need to define the ReturnLabel
+ /// </summary>
+ public void NeedReturnLabel ()
+ {
+ if (current_phase != Phase.Resolving){
+ //
+ // The reason is that the `ReturnLabel' is declared between
+ // resolution and emission
+ //
+ throw new Exception ("NeedReturnLabel called from Emit phase, should only be called during Resolve");
+ }
+
+ if (!InIterator && !HasReturnLabel)
+ HasReturnLabel = true;
+ }
+
+
+ public Expression GetThis (Location loc)
+ {
+ This my_this;
+ if (CurrentBlock != null)
+ my_this = new This (CurrentBlock, loc);
+ else
+ my_this = new This (loc);
+
+ if (!my_this.ResolveBase (this))
+ my_this = null;
+
+ return my_this;
+ }
+ }
+
+
+ public abstract class CommonAssemblyModulClass : Attributable, IResolveContext {
+
+ protected CommonAssemblyModulClass ():
+ base (null)
+ {
+ }
+
+ public void AddAttributes (ArrayList attrs)
+ {
+ foreach (Attribute a in attrs)
+ a.AttachTo (this);
+
+ if (attributes == null) {
+ attributes = new Attributes (attrs);
+ return;
+ }
+ attributes.AddAttributes (attrs);
+ }
+
+ public virtual void Emit (TypeContainer tc)
+ {
+ if (OptAttributes == null)
+ return;
+
+ OptAttributes.Emit ();
+ }
+
+ protected Attribute ResolveAttribute (Type a_type)
+ {
+ Attribute a = OptAttributes.Search (a_type);
+ if (a != null) {
+ a.Resolve ();
+ }
+ return a;
+ }
+
+ public override IResolveContext ResolveContext {
+ get { return this; }
+ }
+
+ #region IResolveContext Members
+
+ public DeclSpace DeclContainer {
+ get { return RootContext.ToplevelTypes; }
+ }
+
+ public DeclSpace GenericDeclContainer {
+ get { return DeclContainer; }
+ }
+
+ public bool IsInObsoleteScope {
+ get { return false; }
+ }
+
+ public bool IsInUnsafeScope {
+ get { return false; }
+ }
+
+ #endregion
+ }
+
+ public class AssemblyClass : CommonAssemblyModulClass {
+ // TODO: make it private and move all builder based methods here
+ public AssemblyBuilder Builder;
+ bool is_cls_compliant;
+ bool wrap_non_exception_throws;
+
+ public Attribute ClsCompliantAttribute;
+
+ ListDictionary declarative_security;
+#if GMCS_SOURCE
+ public AssemblyName Name;
+ MethodInfo add_type_forwarder;
+ ListDictionary emitted_forwarders;
+#endif
+
+ // Module is here just because of error messages
+ static string[] attribute_targets = new string [] { "assembly", "module" };
+
+ public AssemblyClass (): base ()
+ {
+ wrap_non_exception_throws = true;
+ }
+
+ public bool IsClsCompliant {
+ get {
+ return is_cls_compliant;
+ }
+ }
+
+ public bool WrapNonExceptionThrows {
+ get {
+ return wrap_non_exception_throws;
+ }
+ }
+
+ public override AttributeTargets AttributeTargets {
+ get {
+ return AttributeTargets.Assembly;
+ }
+ }
+
+ public override bool IsClsComplianceRequired ()
+ {
+ return is_cls_compliant;
+ }
+
+ public void Resolve ()
+ {
+ if (OptAttributes == null)
+ return;
+
+ // Ensure that we only have GlobalAttributes, since the Search isn't safe with other types.
+ if (!OptAttributes.CheckTargets())
+ return;
+
+ ClsCompliantAttribute = ResolveAttribute (TypeManager.cls_compliant_attribute_type);
+ if (ClsCompliantAttribute != null) {
+ is_cls_compliant = ClsCompliantAttribute.GetClsCompliantAttributeValue ();
+ }
+
+#if GMCS_SOURCE
+ Attribute a = ResolveAttribute (TypeManager.runtime_compatibility_attr_type);
+ if (a != null) {
+ object val = a.GetPropertyValue ("WrapNonExceptionThrows");
+ if (val != null)
+ wrap_non_exception_throws = (bool)val;
+ }
+#endif
+ }
+
+ // fix bug #56621
+ private void SetPublicKey (AssemblyName an, byte[] strongNameBlob)
+ {
+ try {
+ // check for possible ECMA key
+ if (strongNameBlob.Length == 16) {
+ // will be rejected if not "the" ECMA key
+ an.SetPublicKey (strongNameBlob);
+ }
+ else {
+ // take it, with or without, a private key
+ RSA rsa = CryptoConvert.FromCapiKeyBlob (strongNameBlob);
+ // and make sure we only feed the public part to Sys.Ref
+ byte[] publickey = CryptoConvert.ToCapiPublicKeyBlob (rsa);
+
+ // AssemblyName.SetPublicKey requires an additional header
+ byte[] publicKeyHeader = new byte [12] { 0x00, 0x24, 0x00, 0x00, 0x04, 0x80, 0x00, 0x00, 0x94, 0x00, 0x00, 0x00 };
+
+ byte[] encodedPublicKey = new byte [12 + publickey.Length];
+ Buffer.BlockCopy (publicKeyHeader, 0, encodedPublicKey, 0, 12);
+ Buffer.BlockCopy (publickey, 0, encodedPublicKey, 12, publickey.Length);
+ an.SetPublicKey (encodedPublicKey);
+ }
+ }
+ catch (Exception) {
+ Error_AssemblySigning ("The specified file `" + RootContext.StrongNameKeyFile + "' is incorrectly encoded");
+ Environment.Exit (1);
+ }
+ }
+
+ // TODO: rewrite this code (to kill N bugs and make it faster) and use standard ApplyAttribute way.
+ public AssemblyName GetAssemblyName (string name, string output)
+ {
+ if (OptAttributes != null) {
+ foreach (Attribute a in OptAttributes.Attrs) {
+ // cannot rely on any resolve-based members before you call Resolve
+ if (a.ExplicitTarget == null || a.ExplicitTarget != "assembly")
+ continue;
+
+ // TODO: This code is buggy: comparing Attribute name without resolving is wrong.
+ // However, this is invoked by CodeGen.Init, when none of the namespaces
+ // are loaded yet.
+ // TODO: Does not handle quoted attributes properly
+ switch (a.Name) {
+ case "AssemblyKeyFile":
+ case "AssemblyKeyFileAttribute":
+ case "System.Reflection.AssemblyKeyFileAttribute":
+ if (RootContext.StrongNameKeyFile != null) {
+ Report.SymbolRelatedToPreviousError (a.Location, a.Name);
+ Report.Warning (1616, 1, "Option `{0}' overrides attribute `{1}' given in a source file or added module",
+ "keyfile", "System.Reflection.AssemblyKeyFileAttribute");
+ }
+ else {
+ string value = a.GetString ();
+ if (value.Length != 0)
+ RootContext.StrongNameKeyFile = value;
+ }
+ break;
+ case "AssemblyKeyName":
+ case "AssemblyKeyNameAttribute":
+ case "System.Reflection.AssemblyKeyNameAttribute":
+ if (RootContext.StrongNameKeyContainer != null) {
+ Report.SymbolRelatedToPreviousError (a.Location, a.Name);
+ Report.Warning (1616, 1, "Option `{0}' overrides attribute `{1}' given in a source file or added module",
+ "keycontainer", "System.Reflection.AssemblyKeyNameAttribute");
+ }
+ else {
+ string value = a.GetString ();
+ if (value.Length != 0)
+ RootContext.StrongNameKeyContainer = value;
+ }
+ break;
+ case "AssemblyDelaySign":
+ case "AssemblyDelaySignAttribute":
+ case "System.Reflection.AssemblyDelaySignAttribute":
+ RootContext.StrongNameDelaySign = a.GetBoolean ();
+ break;
+ }
+ }
+ }
+
+ AssemblyName an = new AssemblyName ();
+ an.Name = Path.GetFileNameWithoutExtension (name);
+
+ // note: delay doesn't apply when using a key container
+ if (RootContext.StrongNameKeyContainer != null) {
+ an.KeyPair = new StrongNameKeyPair (RootContext.StrongNameKeyContainer);
+ return an;
+ }
+
+ // strongname is optional
+ if (RootContext.StrongNameKeyFile == null)
+ return an;
+
+ string AssemblyDir = Path.GetDirectoryName (output);
+
+ // the StrongName key file may be relative to (a) the compiled
+ // file or (b) to the output assembly. See bugzilla #55320
+ // http://bugzilla.ximian.com/show_bug.cgi?id=55320
+
+ // (a) relative to the compiled file
+ string filename = Path.GetFullPath (RootContext.StrongNameKeyFile);
+ bool exist = File.Exists (filename);
+ if ((!exist) && (AssemblyDir != null) && (AssemblyDir != String.Empty)) {
+ // (b) relative to the outputed assembly
+ filename = Path.GetFullPath (Path.Combine (AssemblyDir, RootContext.StrongNameKeyFile));
+ exist = File.Exists (filename);
+ }
+
+ if (exist) {
+ using (FileStream fs = new FileStream (filename, FileMode.Open, FileAccess.Read)) {
+ byte[] snkeypair = new byte [fs.Length];
+ fs.Read (snkeypair, 0, snkeypair.Length);
+
+ if (RootContext.StrongNameDelaySign) {
+ // delayed signing - DO NOT include private key
+ SetPublicKey (an, snkeypair);
+ }
+ else {
+ // no delay so we make sure we have the private key
+ try {
+ CryptoConvert.FromCapiPrivateKeyBlob (snkeypair);
+ an.KeyPair = new StrongNameKeyPair (snkeypair);
+ }
+ catch (CryptographicException) {
+ if (snkeypair.Length == 16) {
+ // error # is different for ECMA key
+ Report.Error (1606, "Could not sign the assembly. " +
+ "ECMA key can only be used to delay-sign assemblies");
+ }
+ else {
+ Error_AssemblySigning ("The specified file `" + RootContext.StrongNameKeyFile + "' does not have a private key");
+ }
+ return null;
+ }
+ }
+ }
+ }
+ else {
+ Error_AssemblySigning ("The specified file `" + RootContext.StrongNameKeyFile + "' does not exist");
+ return null;
+ }
+ return an;
+ }
+
+ void Error_AssemblySigning (string text)
+ {
+ Report.Error (1548, "Error during assembly signing. " + text);
+ }
+
+#if GMCS_SOURCE
+ bool CheckInternalsVisibleAttribute (Attribute a)
+ {
+ string assembly_name = a.GetString ();
+ if (assembly_name.Length == 0)
+ return false;
+
+ AssemblyName aname = null;
+ try {
+ aname = new AssemblyName (assembly_name);
+ } catch (FileLoadException) {
+ } catch (ArgumentException) {
+ }
+
+ // Bad assembly name format
+ if (aname == null)
+ Report.Warning (1700, 3, a.Location, "Assembly reference `" + assembly_name + "' is invalid and cannot be resolved");
+ // Report error if we have defined Version or Culture
+ else if (aname.Version != null || aname.CultureInfo != null)
+ throw new Exception ("Friend assembly `" + a.GetString () +
+ "' is invalid. InternalsVisibleTo cannot have version or culture specified.");
+ else if (aname.GetPublicKey () == null && Name.GetPublicKey () != null) {
+ Report.Error (1726, a.Location, "Friend assembly reference `" + aname.FullName + "' is invalid." +
+ " Strong named assemblies must specify a public key in their InternalsVisibleTo declarations");
+ return false;
+ }
+
+ return true;
+ }
+#endif
+
+ public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder customBuilder)
+ {
+ if (a.Type.IsSubclassOf (TypeManager.security_attr_type) && a.CheckSecurityActionValidity (true)) {
+ if (declarative_security == null)
+ declarative_security = new ListDictionary ();
+
+ a.ExtractSecurityPermissionSet (declarative_security);
+ return;
+ }
+
+ if (a.Type == TypeManager.assembly_culture_attribute_type) {
+ string value = a.GetString ();
+ if (value == null || value.Length == 0)
+ return;
+
+ if (RootContext.Target == Target.Exe) {
+ a.Error_AttributeEmitError ("The executables cannot be satelite assemblies, remove the attribute or keep it empty");
+ return;
+ }
+ }
+
+#if GMCS_SOURCE
+ if (a.Type == TypeManager.internals_visible_attr_type && !CheckInternalsVisibleAttribute (a))
+ return;
+
+ if (a.Type == TypeManager.type_forwarder_attr_type) {
+ Type t = a.GetArgumentType ();
+ if (t == null || TypeManager.HasElementType (t)) {
+ Report.Error (735, a.Location, "Invalid type specified as an argument for TypeForwardedTo attribute");
+ return;
+ }
+
+ if (emitted_forwarders == null) {
+ emitted_forwarders = new ListDictionary();
+ } else if (emitted_forwarders.Contains(t)) {
+ Report.SymbolRelatedToPreviousError(((Attribute)emitted_forwarders[t]).Location, null);
+ Report.Error(739, a.Location, "A duplicate type forward of type `{0}'",
+ TypeManager.CSharpName(t));
+ return;
+ }
+
+ emitted_forwarders.Add(t, a);
+
+ if (TypeManager.LookupDeclSpace (t) != null) {
+ Report.SymbolRelatedToPreviousError (t);
+ Report.Error (729, a.Location, "Cannot forward type `{0}' because it is defined in this assembly",
+ TypeManager.CSharpName (t));
+ return;
+ }
+
+ if (t.IsNested) {
+ Report.Error (730, a.Location, "Cannot forward type `{0}' because it is a nested type",
+ TypeManager.CSharpName (t));
+ return;
+ }
+
+ if (t.IsGenericType) {
+ Report.Error (733, a.Location, "Cannot forward generic type `{0}'", TypeManager.CSharpName (t));
+ return;
+ }
+
+ if (add_type_forwarder == null) {
+ add_type_forwarder = typeof (AssemblyBuilder).GetMethod ("AddTypeForwarder",
+ BindingFlags.NonPublic | BindingFlags.Instance);
+
+ if (add_type_forwarder == null) {
+ Report.RuntimeMissingSupport (a.Location, "TypeForwardedTo attribute");
+ return;
+ }
+ }
+
+ add_type_forwarder.Invoke (Builder, new object[] { t });
+ return;
+ }
+
+#endif
+ Builder.SetCustomAttribute (customBuilder);
+ }
+
+ public override void Emit (TypeContainer tc)
+ {
+ base.Emit (tc);
+
+#if GMCS_SOURCE
+ // FIXME: Does this belong inside SRE.AssemblyBuilder instead?
+ if (OptAttributes == null || !OptAttributes.Contains (TypeManager.runtime_compatibility_attr_type)) {
+ ConstructorInfo ci = TypeManager.GetConstructor (
+ TypeManager.runtime_compatibility_attr_type, Type.EmptyTypes);
+ PropertyInfo [] pis = new PropertyInfo [1];
+ pis [0] = TypeManager.GetProperty (
+ TypeManager.runtime_compatibility_attr_type, "WrapNonExceptionThrows");
+ object [] pargs = new object [1];
+ pargs [0] = true;
+ Builder.SetCustomAttribute (new CustomAttributeBuilder (ci, new object [0], pis, pargs));
+ }
+#endif
+
+ if (declarative_security != null) {
+
+ MethodInfo add_permission = typeof (AssemblyBuilder).GetMethod ("AddPermissionRequests", BindingFlags.Instance | BindingFlags.NonPublic);
+ object builder_instance = Builder;
+
+ try {
+ // Microsoft runtime hacking
+ if (add_permission == null) {
+ Type assembly_builder = typeof (AssemblyBuilder).Assembly.GetType ("System.Reflection.Emit.AssemblyBuilderData");
+ add_permission = assembly_builder.GetMethod ("AddPermissionRequests", BindingFlags.Instance | BindingFlags.NonPublic);
+
+ FieldInfo fi = typeof (AssemblyBuilder).GetField ("m_assemblyData", BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.GetField);
+ builder_instance = fi.GetValue (Builder);
+ }
+
+ object[] args = new object [] { declarative_security [SecurityAction.RequestMinimum],
+ declarative_security [SecurityAction.RequestOptional],
+ declarative_security [SecurityAction.RequestRefuse] };
+ add_permission.Invoke (builder_instance, args);
+ }
+ catch {
+ Report.RuntimeMissingSupport (Location.Null, "assembly permission setting");
+ }
+ }
+ }
+
+ public override string[] ValidAttributeTargets {
+ get {
+ return attribute_targets;
+ }
+ }
+
+ // Wrapper for AssemblyBuilder.AddModule
+ static MethodInfo adder_method;
+ static public MethodInfo AddModule_Method {
+ get {
+ if (adder_method == null)
+ adder_method = typeof (AssemblyBuilder).GetMethod ("AddModule", BindingFlags.Instance|BindingFlags.NonPublic);
+ return adder_method;
+ }
+ }
+ public Module AddModule (string module)
+ {
+ MethodInfo m = AddModule_Method;
+ if (m == null) {
+ Report.RuntimeMissingSupport (Location.Null, "/addmodule");
+ Environment.Exit (1);
+ }
+
+ try {
+ return (Module) m.Invoke (Builder, new object [] { module });
+ } catch (TargetInvocationException ex) {
+ throw ex.InnerException;
+ }
+ }
+ }
+
+ public class ModuleClass : CommonAssemblyModulClass {
+ // TODO: make it private and move all builder based methods here
+ public ModuleBuilder Builder;
+ bool m_module_is_unsafe;
+
+ public CharSet DefaultCharSet = CharSet.Ansi;
+ public TypeAttributes DefaultCharSetType = TypeAttributes.AnsiClass;
+
+ static string[] attribute_targets = new string [] { "module" };
+
+ public ModuleClass (bool is_unsafe)
+ {
+ m_module_is_unsafe = is_unsafe;
+ }
+
+ public override AttributeTargets AttributeTargets {
+ get {
+ return AttributeTargets.Module;
+ }
+ }
+
+ public override bool IsClsComplianceRequired ()
+ {
+ return CodeGen.Assembly.IsClsCompliant;
+ }
+
+ public override void Emit (TypeContainer tc)
+ {
+ base.Emit (tc);
+
+ if (!m_module_is_unsafe)
+ return;
+
+ if (TypeManager.unverifiable_code_ctor == null) {
+ Console.WriteLine ("Internal error ! Cannot set unverifiable code attribute.");
+ return;
+ }
+
+ Builder.SetCustomAttribute (new CustomAttributeBuilder (TypeManager.unverifiable_code_ctor, new object [0]));
+ }
+
+ public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder customBuilder)
+ {
+ if (a.Type == TypeManager.cls_compliant_attribute_type) {
+ if (CodeGen.Assembly.ClsCompliantAttribute == null) {
+ Report.Warning (3012, 1, a.Location, "You must specify the CLSCompliant attribute on the assembly, not the module, to enable CLS compliance checking");
+ }
+ else if (CodeGen.Assembly.IsClsCompliant != a.GetBoolean ()) {
+ Report.SymbolRelatedToPreviousError (CodeGen.Assembly.ClsCompliantAttribute.Location, CodeGen.Assembly.ClsCompliantAttribute.GetSignatureForError ());
+ Report.Error (3017, a.Location, "You cannot specify the CLSCompliant attribute on a module that differs from the CLSCompliant attribute on the assembly");
+ return;
+ }
+ }
+
+ Builder.SetCustomAttribute (customBuilder);
+ }
+
+ /// <summary>
+ /// It is called very early therefore can resolve only predefined attributes
+ /// </summary>
+ public void Resolve ()
+ {
+#if GMCS_SOURCE
+ if (OptAttributes == null)
+ return;
+
+ if (!OptAttributes.CheckTargets())
+ return;
+
+ Attribute a = ResolveAttribute (TypeManager.default_charset_type);
+ if (a != null) {
+ DefaultCharSet = a.GetCharSetValue ();
+ switch (DefaultCharSet) {
+ case CharSet.Ansi:
+ case CharSet.None:
+ break;
+ case CharSet.Auto:
+ DefaultCharSetType = TypeAttributes.AutoClass;
+ break;
+ case CharSet.Unicode:
+ DefaultCharSetType = TypeAttributes.UnicodeClass;
+ break;
+ default:
+ Report.Error (1724, a.Location, "Value specified for the argument to 'System.Runtime.InteropServices.DefaultCharSetAttribute' is not valid");
+ break;
+ }
+ }
+#endif
+ }
+
+ public override string[] ValidAttributeTargets {
+ get {
+ return attribute_targets;
+ }
+ }
+ }
+}
projects / mono.git / commitdiff