//
// codegen.cs: The code generator
//
// Author:
// Miguel de Icaza (miguel@ximian.com)
//
// (C) 2001 Ximian, Inc.
//
using System;
using System.IO;
using System.Collections;
using System.Reflection;
using System.Reflection.Emit;
using System.Runtime.InteropServices;
using System.Security.Cryptography;
using Mono.Security.Cryptography;
namespace Mono.CSharp {
///
/// Code generator class.
///
public class CodeGen {
static AppDomain current_domain;
static public SymbolWriter SymbolWriter;
public static AssemblyClass Assembly;
public static ModuleClass Module;
static CodeGen ()
{
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 string TrimExt (string name)
{
int pos = name.LastIndexOf ('.');
return name.Substring (0, pos);
}
static public string FileName;
//
// Initializes the symbol writer
//
static void InitializeSymbolWriter ()
{
SymbolWriter = SymbolWriter.GetSymbolWriter (Module.Builder);
//
// If we got an ISymbolWriter instance, initialize it.
//
if (SymbolWriter == null) {
Report.Warning (
-18, "Could not find the symbol writer assembly (Mono.CSharp.Debugger.dll). This is normally an installation problem. Please make sure to compile and install the mcs/class/Mono.CSharp.Debugger directory.");
return;
}
}
//
// Initializes the code generator variables
//
static public void Init (string name, string output, bool want_debugging_support)
{
FileName = output;
AssemblyName an = Assembly.GetAssemblyName (name, output);
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);
}
throw;
}
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);
}
throw;
}
//
// 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), want_debugging_support);
if (want_debugging_support)
InitializeSymbolWriter ();
}
static public void Save (string name)
{
try {
Assembly.Builder.Save (Basename (name));
}
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);
}
}
}
//
// Provides "local" store across code that can yield: locals
// or fields, notice that this should not be used by anonymous
// methods to create local storage, those only require
// variable mapping.
//
public class VariableStorage {
ILGenerator ig;
FieldBuilder fb;
LocalBuilder local;
static int count;
public VariableStorage (EmitContext ec, Type t)
{
count++;
if (ec.InIterator)
fb = IteratorHandler.Current.MapVariable ("s_", count.ToString (), t);
else
local = ec.ig.DeclareLocal (t);
ig = ec.ig;
}
public void EmitThis ()
{
if (fb != null)
ig.Emit (OpCodes.Ldarg_0);
}
public void EmitStore ()
{
if (fb == null)
ig.Emit (OpCodes.Stloc, local);
else
ig.Emit (OpCodes.Stfld, fb);
}
public void EmitLoad ()
{
if (fb == null)
ig.Emit (OpCodes.Ldloc, local);
else
ig.Emit (OpCodes.Ldfld, fb);
}
public void EmitCall (MethodInfo mi)
{
// FIXME : we should handle a call like tostring
// here, where boxing is needed. However, we will
// never encounter that with the current usage.
bool value_type_call;
EmitThis ();
if (fb == null) {
value_type_call = local.LocalType.IsValueType;
if (value_type_call)
ig.Emit (OpCodes.Ldloca, local);
else
ig.Emit (OpCodes.Ldloc, local);
} else {
value_type_call = fb.FieldType.IsValueType;
if (value_type_call)
ig.Emit (OpCodes.Ldflda, fb);
else
ig.Emit (OpCodes.Ldfld, fb);
}
ig.Emit (value_type_call ? OpCodes.Call : OpCodes.Callvirt, mi);
}
}
///
/// An Emit Context is created for each body of code (from methods,
/// properties bodies, indexer bodies or constructor bodies)
///
public class EmitContext {
public DeclSpace DeclSpace;
public DeclSpace TypeContainer;
public ILGenerator ig;
///
/// This variable 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.
///
public bool CheckState;
///
/// 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.
///
public bool ConstantCheckState;
///
/// Whether we are emitting code inside a static or instance method
///
public bool IsStatic;
///
/// Whether we are emitting a field initializer
///
public bool IsFieldInitializer;
///
/// The value that is allowed to be returned or NULL if there is no
/// return type.
///
public Type ReturnType;
///
/// Points to the Type (extracted from the TypeContainer) that
/// declares this body of code
///
public Type ContainerType;
///
/// Whether this is generating code for a constructor
///
public bool IsConstructor;
///
/// Whether we're control flow analysis enabled
///
public bool DoFlowAnalysis;
///
/// 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)
///
public Hashtable temporary_storage;
public Block CurrentBlock;
public int CurrentFile;
///
/// The location where we store the return value.
///
LocalBuilder return_value;
///
/// The location where return has to jump to return the
/// value
///
public Label ReturnLabel;
///
/// If we already defined the ReturnLabel
///
public bool HasReturnLabel;
///
/// Whether we are inside an iterator block.
///
public bool InIterator;
public bool IsLastStatement;
///
/// Whether remapping of locals, parameters and fields is turned on.
/// Used by iterators and anonymous methods.
///
public bool RemapToProxy;
///
/// Whether we are inside an unsafe block
///
public bool InUnsafe;
///
/// Whether we are in a `fixed' initialization
///
public bool InFixedInitializer;
///
/// Whether we are inside an anonymous method.
///
public bool InAnonymousMethod;
///
/// Location for this EmitContext
///
public Location loc;
///
/// Used to flag that it is ok to define types recursively, as the
/// expressions are being evaluated as part of the type lookup
/// during the type resolution process
///
public bool ResolvingTypeTree;
///
/// 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
///
public bool InEnumContext;
FlowBranching current_flow_branching;
public EmitContext (DeclSpace parent, DeclSpace ds, Location l, ILGenerator ig,
Type return_type, int code_flags, bool is_constructor)
{
this.ig = ig;
TypeContainer = parent;
DeclSpace = ds;
CheckState = RootContext.Checked;
ConstantCheckState = true;
IsStatic = (code_flags & Modifiers.STATIC) != 0;
InIterator = (code_flags & Modifiers.METHOD_YIELDS) != 0;
RemapToProxy = InIterator;
ReturnType = return_type;
IsConstructor = is_constructor;
CurrentBlock = null;
CurrentFile = 0;
if (parent != null){
// Can only be null for the ResolveType contexts.
ContainerType = parent.TypeBuilder;
if (parent.UnsafeContext)
InUnsafe = true;
else
InUnsafe = (code_flags & Modifiers.UNSAFE) != 0;
}
loc = l;
if (ReturnType == TypeManager.void_type)
ReturnType = null;
}
public EmitContext (TypeContainer tc, Location l, ILGenerator ig,
Type return_type, int code_flags, bool is_constructor)
: this (tc, tc, l, ig, return_type, code_flags, is_constructor)
{
}
public EmitContext (TypeContainer tc, Location l, ILGenerator ig,
Type return_type, int code_flags)
: this (tc, tc, l, ig, return_type, code_flags, false)
{
}
public FlowBranching CurrentBranching {
get {
return current_flow_branching;
}
}
//
// Starts a new code branching. This inherits the state of all local
// variables and parameters from the current branching.
//
public FlowBranching StartFlowBranching (FlowBranching.BranchingType type, Location loc)
{
current_flow_branching = FlowBranching.CreateBranching (CurrentBranching, type, null, loc);
return current_flow_branching;
}
//
// Starts a new code branching for block `block'.
//
public FlowBranching StartFlowBranching (Block block)
{
FlowBranching.BranchingType type;
if (CurrentBranching.Type == FlowBranching.BranchingType.Switch)
type = FlowBranching.BranchingType.SwitchSection;
else
type = FlowBranching.BranchingType.Block;
current_flow_branching = FlowBranching.CreateBranching (CurrentBranching, type, block, block.StartLocation);
return current_flow_branching;
}
//
// Ends a code branching. Merges the state of locals and parameters
// from all the children of the ending branching.
//
public FlowBranching.UsageVector DoEndFlowBranching ()
{
FlowBranching old = current_flow_branching;
current_flow_branching = current_flow_branching.Parent;
return current_flow_branching.MergeChild (old);
}
//
// Ends a code branching. Merges the state of locals and parameters
// from all the children of the ending branching.
//
public FlowBranching.Reachability EndFlowBranching ()
{
FlowBranching.UsageVector vector = DoEndFlowBranching ();
return vector.Reachability;
}
//
// Kills the current code branching. This throws away any changed state
// information and should only be used in case of an error.
//
public void KillFlowBranching ()
{
current_flow_branching = current_flow_branching.Parent;
}
public void EmitTopBlock (Block block, InternalParameters ip, Location loc)
{
bool unreachable = false;
if (!Location.IsNull (loc))
CurrentFile = loc.File;
if (block != null){
try {
int errors = Report.Errors;
block.EmitMeta (this, ip);
if (Report.Errors == errors){
bool old_do_flow_analysis = DoFlowAnalysis;
DoFlowAnalysis = true;
current_flow_branching = FlowBranching.CreateBranching (
null, FlowBranching.BranchingType.Block, block, loc);
if (!block.Resolve (this)) {
current_flow_branching = null;
DoFlowAnalysis = old_do_flow_analysis;
return;
}
FlowBranching.Reachability reachability = current_flow_branching.MergeTopBlock ();
current_flow_branching = null;
DoFlowAnalysis = old_do_flow_analysis;
block.Emit (this);
if (reachability.AlwaysReturns ||
reachability.AlwaysThrows ||
reachability.IsUnreachable)
unreachable = true;
}
#if FIXME
} 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);
Console.WriteLine (Report.FriendlyStackTrace (e));
Environment.Exit (1);
#else
} finally {
#endif
}
}
if (ReturnType != null && !unreachable){
if (!InIterator){
Report.Error (161, loc, "Not all code paths return a value");
return;
}
}
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.
//
if ((block != null) && block.IsDestructor) {
// Nothing to do; S.R.E automatically emits a leave.
} else if (HasReturnLabel || (!unreachable && !InIterator)) {
if (ReturnType != null)
ig.Emit (OpCodes.Ldloc, TemporaryReturn ());
ig.Emit (OpCodes.Ret);
}
}
}
///
/// This is called immediately before emitting an IL opcode to tell the symbol
/// writer to which source line this opcode belongs.
///
public void Mark (Location loc, bool check_file)
{
if ((CodeGen.SymbolWriter == null) || Location.IsNull (loc))
return;
if (check_file && (CurrentFile != loc.File))
return;
ig.MarkSequencePoint (null, loc.Row, 0, 0, 0);
}
///
/// Returns a temporary storage for a variable of type t as
/// a local variable in the current body.
///
public LocalBuilder GetTemporaryLocal (Type t)
{
LocalBuilder location = null;
if (temporary_storage != null){
object o = temporary_storage [t];
if (o != null){
if (o is ArrayList){
ArrayList al = (ArrayList) o;
for (int i = 0; i < al.Count; i++){
if (al [i] != null){
location = (LocalBuilder) al [i];
al [i] = null;
break;
}
}
} else
location = (LocalBuilder) o;
if (location != null)
return location;
}
}
return ig.DeclareLocal (t);
}
public void FreeTemporaryLocal (LocalBuilder b, Type t)
{
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 ArrayList){
ArrayList al = (ArrayList) o;
for (int i = 0; i < al.Count; i++){
if (al [i] == null){
al [i] = b;
return;
}
}
al.Add (b);
return;
}
ArrayList replacement = new ArrayList ();
replacement.Add (o);
temporary_storage.Remove (t);
temporary_storage [t] = replacement;
}
///
/// Current loop begin and end labels.
///
public Label LoopBegin, LoopEnd;
///
/// Default target in a switch statement. Only valid if
/// InSwitch is true
///
public Label DefaultTarget;
///
/// If this is non-null, points to the current switch statement
///
public Switch Switch;
///
/// 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.
///
public LocalBuilder TemporaryReturn ()
{
if (return_value == null){
return_value = ig.DeclareLocal (ReturnType);
ReturnLabel = ig.DefineLabel ();
HasReturnLabel = true;
}
return return_value;
}
public void NeedReturnLabel ()
{
if (!HasReturnLabel) {
ReturnLabel = ig.DefineLabel ();
HasReturnLabel = true;
}
}
//
// Creates a field `name' with the type `t' on the proxy class
//
public FieldBuilder MapVariable (string name, Type t)
{
if (InIterator){
return IteratorHandler.Current.MapVariable ("v_", name, t);
}
throw new Exception ("MapVariable for an unknown state");
}
//
// Invoke this routine to remap a VariableInfo into the
// proper MemberAccess expression
//
public Expression RemapLocal (LocalInfo local_info)
{
FieldExpr fe = new FieldExpr (local_info.FieldBuilder, loc);
fe.InstanceExpression = new ProxyInstance ();
return fe.DoResolve (this);
}
public Expression RemapLocalLValue (LocalInfo local_info, Expression right_side)
{
FieldExpr fe = new FieldExpr (local_info.FieldBuilder, loc);
fe.InstanceExpression = new ProxyInstance ();
return fe.DoResolveLValue (this, right_side);
}
public Expression RemapParameter (int idx)
{
FieldExpr fe = new FieldExprNoAddress (IteratorHandler.Current.parameter_fields [idx], loc);
fe.InstanceExpression = new ProxyInstance ();
return fe.DoResolve (this);
}
public Expression RemapParameterLValue (int idx, Expression right_side)
{
FieldExpr fe = new FieldExprNoAddress (IteratorHandler.Current.parameter_fields [idx], loc);
fe.InstanceExpression = new ProxyInstance ();
return fe.DoResolveLValue (this, right_side);
}
//
// Emits the proper object to address fields on a remapped
// variable/parameter to field in anonymous-method/iterator proxy classes.
//
public void EmitThis ()
{
if (InIterator){
ig.Emit (OpCodes.Ldarg_0);
if (!IsStatic){
FieldBuilder this_field = IteratorHandler.Current.this_field;
if (TypeManager.IsValueType (this_field.FieldType))
ig.Emit (OpCodes.Ldflda, this_field);
else
ig.Emit (OpCodes.Ldfld, this_field);
}
} else
ig.Emit (OpCodes.Ldarg_0);
}
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 {
static string[] attribute_targets = new string [] { "assembly", "module" };
protected CommonAssemblyModulClass ():
base (null)
{
}
public void AddAttributes (ArrayList attrs)
{
if (OptAttributes == null) {
OptAttributes = new Attributes (attrs);
return;
}
OptAttributes.AddAttributes (attrs);
OptAttributes.CheckTargets (ValidAttributeTargets);
}
public virtual void Emit (TypeContainer tc)
{
if (OptAttributes == null)
return;
EmitContext ec = new EmitContext (tc, Mono.CSharp.Location.Null, null, null, 0, false);
OptAttributes.Emit (ec, this);
}
protected Attribute GetClsCompliantAttribute ()
{
if (OptAttributes == null)
return null;
EmitContext temp_ec = new EmitContext (new TypeContainer (), Mono.CSharp.Location.Null, null, null, 0, false);
Attribute a = OptAttributes.Search (TypeManager.cls_compliant_attribute_type, temp_ec);
if (a != null) {
a.Resolve (temp_ec);
}
return a;
}
protected override string[] ValidAttributeTargets {
get {
return attribute_targets;
}
}
}
public class AssemblyClass: CommonAssemblyModulClass {
// TODO: make it private and move all builder based methods here
public AssemblyBuilder Builder;
bool is_cls_compliant;
public AssemblyClass (): base ()
{
is_cls_compliant = false;
}
public bool IsClsCompliant {
get {
return is_cls_compliant;
}
}
public override AttributeTargets AttributeTargets {
get {
return AttributeTargets.Assembly;
}
}
public override bool IsClsCompliaceRequired(DeclSpace ds)
{
return is_cls_compliant;
}
public void ResolveClsCompliance ()
{
Attribute a = GetClsCompliantAttribute ();
if (a == null)
return;
is_cls_compliant = a.GetClsCompliantAttributeValue (null);
}
public AssemblyName GetAssemblyName (string name, string output)
{
if (OptAttributes != null) {
foreach (Attribute a in OptAttributes.Attrs) {
if (a.Target != "assembly")
continue;
// TODO: This code is buggy: comparing Attribute name without resolving it is wrong.
// However, this is invoked by CodeGen.Init, at which time none of the namespaces
// are loaded yet.
switch (a.Name) {
case "AssemblyKeyFile":
case "AssemblyKeyFileAttribute":
case "System.Reflection.AssemblyKeyFileAttribute":
if (RootContext.StrongNameKeyFile != null) {
Report.Warning (1616, "Compiler option -keyfile overrides " +
"AssemblyKeyFileAttribute");
}
else {
string value = a.GetString ();
if (value != String.Empty)
RootContext.StrongNameKeyFile = value;
}
break;
case "AssemblyKeyName":
case "AssemblyKeyNameAttribute":
case "System.Reflection.AssemblyKeyNameAttribute":
if (RootContext.StrongNameKeyContainer != null) {
Report.Warning (1616, "Compiler option -keycontainer overrides " +
"AssemblyKeyNameAttribute");
}
else {
string value = a.GetString ();
if (value != String.Empty)
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
try {
// check for possible ECMA key
if (snkeypair.Length == 16) {
// will be rejected if not "the" ECMA key
an.KeyPair = new StrongNameKeyPair (snkeypair);
}
else {
// take it, with or without, a private key
RSA rsa = CryptoConvert.FromCapiKeyBlob (snkeypair);
// and make sure we only feed the public part to Sys.Ref
byte[] publickey = CryptoConvert.ToCapiPublicKeyBlob (rsa);
an.KeyPair = new StrongNameKeyPair (publickey);
}
}
catch (Exception) {
Report.Error (1548, "Could not strongname the assembly. File `" +
RootContext.StrongNameKeyFile + "' incorrectly encoded.");
Environment.Exit (1);
}
}
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 strongname the assembly. " +
"ECMA key can only be used to delay-sign assemblies");
}
else {
Report.Error (1548, "Could not strongname the assembly. File `" +
RootContext.StrongNameKeyFile +
"' doesn't have a private key.");
}
Environment.Exit (1);
}
}
}
}
else {
Report.Error (1548, "Could not strongname the assembly. File `" +
RootContext.StrongNameKeyFile + "' not found.");
Environment.Exit (1);
}
return an;
}
public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder customBuilder)
{
Builder.SetCustomAttribute (customBuilder);
}
}
public class ModuleClass: CommonAssemblyModulClass {
// TODO: make it private and move all builder based methods here
public ModuleBuilder Builder;
bool m_module_is_unsafe;
public ModuleClass (bool is_unsafe)
{
m_module_is_unsafe = is_unsafe;
}
public override AttributeTargets AttributeTargets {
get {
return AttributeTargets.Module;
}
}
public override bool IsClsCompliaceRequired(DeclSpace ds)
{
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;
}
ApplyAttributeBuilder (null, new CustomAttributeBuilder (TypeManager.unverifiable_code_ctor, new object [0]));
}
public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder customBuilder)
{
if (a != null && a.Type == TypeManager.cls_compliant_attribute_type) {
Report.Warning_T (3012, a.Location);
return;
}
Builder.SetCustomAttribute (customBuilder);
}
}
}