// (C) 2004 Novell, Inc.
//
-#if !DEBUG
- #define PRODUCTION
-#endif
+//
+// Please leave this defined on SVN: The idea is that when we ship the
+// compiler to end users, if the compiler crashes, they have a chance
+// to narrow down the problem.
+//
+// Only remove it if you need to debug locally on your tree.
+//
+#define PRODUCTION
using System;
using System.IO;
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.
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>
/// </summary>
public class EmitContext : IResolveContext {
- DeclSpace declSpace;
+ //
+ // Holds a varible used during collection or object initialization.
+ //
+ public Expression CurrentInitializerVariable;
+
+ DeclSpace decl_space;
+
public DeclSpace TypeContainer;
- public ILGenerator ig;
+ public ILGenerator ig;
[Flags]
- public enum Flags : byte {
+ public enum Flags : int {
/// <summary>
/// This flag tracks the `checked' state of the compilation,
/// it controls whether we should generate code that does overflow
/// Whether control flow analysis is disabled on structs
/// (only meaningful when DoFlowAnalysis is set)
/// </summary>
- OmitStructFlowAnalysis = 1 << 6
+ OmitStructFlowAnalysis = 1 << 6,
+
+ ///
+ /// Indicates the current context is in probing mode, no errors are reported.
+ ///
+ ProbingMode = 1 << 7,
+
+ //
+ // Inside field intializer expression
+ //
+ InFieldInitializer = 1 << 8,
+
+ InferReturnType = 1 << 9
}
Flags flags;
/// </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 Type ReturnType;
+ Type return_type;
/// <summary>
/// Points to the Type (extracted from the TypeContainer) that
/// </summary>
public bool InIterator;
- public bool IsLastStatement;
-
/// <summary>
/// Whether we are in a `fixed' initialization
/// </summary>
/// </summary>
public bool InEnumContext;
- /// <summary>
- /// Anonymous methods can capture local variables and fields,
- /// this object tracks it. It is copied from the TopLevelBlock
- /// field.
- /// </summary>
- public CaptureContext capture_context;
-
public readonly IResolveContext ResolveContext;
/// <summary>
/// The current iterator
/// </summary>
- public Iterator CurrentIterator;
+ public Iterator CurrentIterator {
+ get { return CurrentAnonymousMethod as Iterator; }
+ }
/// <summary>
/// Whether we are in the resolving stage or not
Emitting
}
+ public static EmitContext TempEc;
+
bool isAnonymousMethodAllowed = true;
Phase current_phase;
public override string ToString ()
{
- return String.Format ("EmitContext ({0}:{1}:{2})", id,
- CurrentIterator, capture_context, loc);
+ return String.Format ("EmitContext ({0}:{1})", id,
+ CurrentAnonymousMethod, loc);
}
public EmitContext (IResolveContext rc, DeclSpace parent, DeclSpace ds, Location l, ILGenerator ig,
this.ig = ig;
TypeContainer = parent;
- this.declSpace = ds;
+ this.decl_space = ds;
if (RootContext.Checked)
flags |= Flags.CheckState;
flags |= Flags.ConstantCheckState;
+ if (return_type == null)
+ throw new ArgumentNullException ("return_type");
+#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;
flags |= Flags.InUnsafe;
}
loc = l;
-
- if (ReturnType == TypeManager.void_type)
- ReturnType = null;
}
public EmitContext (IResolveContext rc, DeclSpace ds, Location l, ILGenerator ig,
}
public DeclSpace DeclContainer {
- get { return declSpace; }
- set { declSpace = value; }
+ get { return decl_space; }
+ set { decl_space = value; }
+ }
+
+ public DeclSpace GenericDeclContainer {
+ get { return DeclContainer; }
}
public bool CheckState {
public struct FlagsHandle : IDisposable
{
EmitContext ec;
- Flags invmask, oldval;
+ readonly Flags invmask, oldval;
+
+ public FlagsHandle (EmitContext ec, Flags flagsToSet)
+ : this (ec, flagsToSet, flagsToSet)
+ {
+ }
+
internal FlagsHandle (EmitContext ec, Flags mask, Flags val)
{
this.ec = ec;
invmask = ~mask;
oldval = ec.flags & mask;
ec.flags = (ec.flags & invmask) | (val & mask);
+
+ if ((mask & Flags.ProbingMode) != 0)
+ Report.DisableReporting ();
}
+
public void Dispose ()
{
+ if ((invmask & Flags.ProbingMode) == 0)
+ Report.EnableReporting ();
+
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 Set (Flags flagsToSet)
+ {
+ return new FlagsHandle (this, flagsToSet);
+ }
+
public FlagsHandle With (Flags bits, bool enable)
{
return new FlagsHandle (this, bits, enable ? bits : 0);
(omit_struct_analysis ? Flags.OmitStructFlowAnalysis : 0);
return new FlagsHandle (this, Flags.DoFlowAnalysis | Flags.OmitStructFlowAnalysis, newflags);
}
+
+ /// <summary>
+ /// If this is true, then Return and ContextualReturn statements
+ /// will set the ReturnType value based on the expression types
+ /// of each return statement instead of the method return type
+ /// (which is initially null).
+ /// </summary>
+ public bool InferReturnType {
+ get { return (flags & Flags.InferReturnType) != 0; }
+ }
public bool IsInObsoleteScope {
- get { return ResolveContext.IsInObsoleteScope; }
+ get {
+ // Disables obsolete checks when probing is on
+ return IsInProbingMode || ResolveContext.IsInObsoleteScope;
+ }
+ }
+
+ public bool IsInProbingMode {
+ get { return (flags & Flags.ProbingMode) != 0; }
}
public bool IsInUnsafeScope {
set { isAnonymousMethodAllowed = value; }
}
- public FlowBranching CurrentBranching {
- get { return current_flow_branching; }
+ public bool IsInFieldInitializer {
+ get { return (flags & Flags.InFieldInitializer) != 0; }
}
- public bool HaveCaptureInfo {
- get { return capture_context != null; }
- }
-
- public void EmitScopeInitFromBlock (Block b)
- {
- if (capture_context != null)
- capture_context.EmitScopeInitFromBlock (this, b);
+ public FlowBranching CurrentBranching {
+ get { return current_flow_branching; }
}
// <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 ()
+ public bool EndFlowBranching ()
{
FlowBranching.UsageVector vector = DoEndFlowBranching ();
- return vector.Reachability;
+ return vector.IsUnreachable;
}
// <summary>
current_flow_branching = current_flow_branching.Parent;
}
- public void CaptureVariable (LocalInfo li)
- {
- capture_context.AddLocal (CurrentAnonymousMethod, li);
- li.IsCaptured = true;
- }
-
- public void CaptureParameter (string name, Type t, int idx)
+ public bool MustCaptureVariable (LocalInfo local)
{
- capture_context.AddParameter (this, CurrentAnonymousMethod, name, t, idx);
- }
-
- public void CaptureThis ()
- {
- capture_context.CaptureThis (CurrentAnonymousMethod);
- }
-
-
- //
- // Use to register a field as captured
- //
- public void CaptureField (FieldExpr fe)
- {
- capture_context.AddField (this, CurrentAnonymousMethod, fe);
- }
-
- //
- // Whether anonymous methods have captured variables
- //
- public bool HaveCapturedVariables ()
- {
- if (capture_context != null)
- return capture_context.HaveCapturedVariables;
- return false;
- }
-
- //
- // Whether anonymous methods have captured fields or this.
- //
- public bool HaveCapturedFields ()
- {
- if (capture_context != null)
- return capture_context.HaveCapturedFields;
- return false;
- }
-
- //
- // Emits the instance pointer for the host method
- //
- public void EmitMethodHostInstance (EmitContext target, AnonymousMethod am)
- {
- if (capture_context != null)
- capture_context.EmitMethodHostInstance (target, am);
- else if (IsStatic)
- target.ig.Emit (OpCodes.Ldnull);
- else
- target.ig.Emit (OpCodes.Ldarg_0);
- }
-
- //
- // Returns whether the `local' variable has been captured by an anonymous
- // method
- //
- public bool IsCaptured (LocalInfo local)
- {
- return capture_context.IsCaptured (local);
- }
-
- public bool IsParameterCaptured (string name)
- {
- if (capture_context != null)
- return capture_context.IsParameterCaptured (name);
- return false;
+ if (CurrentAnonymousMethod == null)
+ return false;
+ if (CurrentAnonymousMethod.IsIterator)
+ return true;
+ return local.Block.Toplevel != CurrentBlock.Toplevel;
}
public void EmitMeta (ToplevelBlock b)
{
- if (capture_context != null)
- capture_context.EmitAnonymousHelperClasses (this);
b.EmitMeta (this);
if (HasReturnLabel)
bool unreachable;
if (ResolveTopBlock (null, block, md.ParameterInfo, md, out unreachable)){
+ if (Report.Errors > 0)
+ return;
+
EmitMeta (block);
current_phase = Phase.Emitting;
if (resolved)
return true;
- capture_context = block.CaptureContext;
-
if (!loc.IsNull)
CurrentFile = loc.File;
if (!block.ResolveMeta (this, ip))
return false;
+ if ((md != null) && (md.Iterator != null)) {
+ if (!md.Iterator.Define (this))
+ return false;
+ }
+
using (this.With (EmitContext.Flags.DoFlowAnalysis, true)) {
FlowBranchingToplevel top_level;
if (anonymous_method_host != null)
if (!ok)
return false;
- FlowBranching.Reachability reachability = top_level.End ();
- if (reachability.IsUnreachable)
+ bool flow_unreachable = top_level.End ();
+ if (flow_unreachable)
unreachable = true;
}
#if PRODUCTION
}
#endif
- if (ReturnType != null && !unreachable) {
+ if (return_type != TypeManager.void_type && !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 ());
+ CurrentAnonymousMethod.GetSignatureForError ());
return false;
}
}
- block.CompleteContexts ();
+ if (!block.CompleteContexts (this))
+ return false;
+
resolved = true;
return true;
}
+ public Type ReturnType {
+ set {
+ return_type = value;
+ }
+ get {
+ return return_type;
+ }
+ }
+
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);
if ((block != null) && block.IsDestructor) {
// Nothing to do; S.R.E automatically emits a leave.
} else if (HasReturnLabel || (!unreachable && !in_iterator)) {
- if (ReturnType != null)
+ if (return_type != TypeManager.void_type)
ig.Emit (OpCodes.Ldloc, TemporaryReturn ());
ig.Emit (OpCodes.Ret);
}
}
-
- //
- // Close pending helper classes if we are the toplevel
- //
- if (capture_context != null && capture_context.ParentToplevel == null)
- capture_context.CloseAnonymousHelperClasses ();
}
/// <summary>
public LocalBuilder TemporaryReturn ()
{
if (return_value == null){
- return_value = ig.DeclareLocal (ReturnType);
+ return_value = ig.DeclareLocal (return_type);
if (!HasReturnLabel){
ReturnLabel = ig.DefineLabel ();
HasReturnLabel = true;
HasReturnLabel = true;
}
- //
- // Emits the proper object to address fields on a remapped
- // variable/parameter to field in anonymous-method/iterator proxy classes.
- //
- public void EmitThis (bool need_address)
- {
- ig.Emit (OpCodes.Ldarg_0);
- if (capture_context != null && CurrentAnonymousMethod != null){
- ScopeInfo si = CurrentAnonymousMethod.Scope;
- while (si != null){
- if (si.ParentLink != null)
- ig.Emit (OpCodes.Ldfld, si.ParentLink);
- if (si.THIS != null){
- if (need_address && TypeManager.IsValueType (si.THIS.FieldType))
- ig.Emit (OpCodes.Ldflda, si.THIS);
- else
- ig.Emit (OpCodes.Ldfld, si.THIS);
- break;
- }
- si = si.ParentScope;
- }
- }
- }
-
- //
- // Emits the code necessary to load the instance required
- // to access the captured LocalInfo
- //
- public void EmitCapturedVariableInstance (LocalInfo li)
- {
- if (capture_context == null)
- throw new Exception ("Calling EmitCapturedContext when there is no capture_context");
-
- capture_context.EmitCapturedVariableInstance (this, li, CurrentAnonymousMethod);
- }
-
- public void EmitParameter (string name, bool leave_copy, bool prepared, ref LocalTemporary temp)
- {
- capture_context.EmitParameter (this, name, leave_copy, prepared, ref temp);
- }
-
- public void EmitAssignParameter (string name, Expression source, bool leave_copy, bool prepare_for_load, ref LocalTemporary temp)
- {
- capture_context.EmitAssignParameter (this, name, source, leave_copy, prepare_for_load, ref temp);
- }
- public void EmitAddressOfParameter (string name)
- {
- capture_context.EmitAddressOfParameter (this, name);
- }
-
public Expression GetThis (Location loc)
{
This my_this;
OptAttributes.Emit ();
}
-
+
protected Attribute ResolveAttribute (Type a_type)
{
- if (OptAttributes == null)
- return null;
-
- // Ensure that we only have GlobalAttributes, since the Search below isn't safe with other types.
- if (!OptAttributes.CheckTargets ())
- return null;
-
Attribute a = OptAttributes.Search (a_type);
if (a != null) {
a.Resolve ();
get { return RootContext.ToplevelTypes; }
}
+ public DeclSpace GenericDeclContainer {
+ get { return DeclContainer; }
+ }
+
public bool IsInObsoleteScope {
get { return false; }
}
public Attribute ClsCompliantAttribute;
ListDictionary declarative_security;
+#if GMCS_SOURCE
+ bool has_extension_method;
+ 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 ()
{
+#if GMCS_SOURCE
wrap_non_exception_throws = true;
+#endif
+ }
+
+ public bool HasExtensionMethods {
+ set {
+#if GMCS_SOURCE
+ has_extension_method = value;
+#endif
+ }
}
public bool IsClsCompliant {
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 NET_2_0
+#if GMCS_SOURCE
Attribute a = ResolveAttribute (TypeManager.runtime_compatibility_attr_type);
if (a != null) {
object val = a.GetPropertyValue ("WrapNonExceptionThrows");
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
+
+ static bool IsValidAssemblyVersion (string version)
+ {
+ Version v;
+ try {
+ v = new Version (version);
+ } catch {
+ return false;
+ }
+
+ foreach (int candidate in new int [] { v.Major, v.Minor, v.Build, v.Revision }) {
+ if (candidate > ushort.MaxValue)
+ return false;
+ }
+
+ return true;
+ }
+
public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder customBuilder)
{
if (a.Type.IsSubclassOf (TypeManager.security_attr_type) && a.CheckSecurityActionValidity (true)) {
}
}
+ if (a.Type == TypeManager.assembly_version_attribute_type) {
+ string value = a.GetString ();
+ if (value == null || value.Length == 0)
+ return;
+
+ value = value.Replace ('*', '0');
+
+ if (!IsValidAssemblyVersion (value)) {
+ a.Error_AttributeEmitError (string.Format ("Specified version `{0}' is not valid", value));
+ 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;
+ }
+
+ if (a.Type == TypeManager.extension_attribute_type) {
+ a.Error_MisusedExtensionAttribute ();
+ return;
+ }
+#endif
Builder.SetCustomAttribute (customBuilder);
}
{
base.Emit (tc);
+#if GMCS_SOURCE
+ if (has_extension_method)
+ Builder.SetCustomAttribute (TypeManager.extension_attribute_attr);
+
+ // 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);
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;
+ bool has_default_charset;
public CharSet DefaultCharSet = CharSet.Ansi;
public TypeAttributes DefaultCharSetType = TypeAttributes.AnsiClass;
Builder.SetCustomAttribute (customBuilder);
}
+ public bool HasDefaultCharSet {
+ get {
+ return has_default_charset;
+ }
+ }
+
/// <summary>
/// It is called very early therefore can resolve only predefined attributes
/// </summary>
- public void ResolveAttributes ()
+ public void Resolve ()
{
-#if NET_2_0
+#if GMCS_SOURCE
+ if (OptAttributes == null)
+ return;
+
+ if (!OptAttributes.CheckTargets())
+ return;
+
Attribute a = ResolveAttribute (TypeManager.default_charset_type);
if (a != null) {
+ has_default_charset = true;
DefaultCharSet = a.GetCharSetValue ();
switch (DefaultCharSet) {
case CharSet.Ansi:
projects / mono.git / blobdiff