//
// Only remove it if you need to debug locally on your tree.
//
-//#define PRODUCTION
+#define PRODUCTION
using System;
using System.IO;
using System.Collections;
using System.Collections.Specialized;
+using System.Globalization;
using System.Reflection;
using System.Reflection.Emit;
using System.Runtime.InteropServices;
/// </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,
+
+ InCompoundAssignment = 1 << 10
}
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 readonly Type ReturnType;
+ Type return_type;
/// <summary>
/// Points to the Type (extracted from the TypeContainer) that
/// declares this body of code
/// </summary>
- public Type ContainerType;
+ public readonly Type ContainerType;
/// <summary>
/// Whether this is generating code for a constructor
/// </summary>
public bool InIterator;
- public bool IsLastStatement;
-
/// <summary>
/// Whether we are in a `fixed' initialization
/// </summary>
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 ();
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 {
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 bool IsInFieldInitializer {
+ get { return (flags & Flags.InFieldInitializer) != 0; }
+ }
+
+ public bool IsInCompoundAssignment {
+ get { return (flags & Flags.InCompoundAssignment) != 0; }
+ }
+
public FlowBranching CurrentBranching {
get { return current_flow_branching; }
}
// 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>
bool unreachable;
if (ResolveTopBlock (null, block, md.ParameterInfo, md, out unreachable)){
+ if (Report.Errors > 0)
+ return;
+
EmitMeta (block);
current_phase = Phase.Emitting;
return false;
if ((md != null) && (md.Iterator != null)) {
- if (!md.Iterator.Resolve (this))
+ if (!md.Iterator.Define (this))
return false;
}
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;
return true;
}
+ public Type ReturnType {
+ set {
+ return_type = value;
+ }
+ get {
+ return return_type;
+ }
+ }
+
public void EmitResolvedTopBlock (ToplevelBlock block, bool unreachable)
{
if (block != null)
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);
}
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;
public AssemblyBuilder Builder;
bool is_cls_compliant;
bool wrap_non_exception_throws;
- bool has_extension_method;
public Attribute ClsCompliantAttribute;
ListDictionary declarative_security;
#if GMCS_SOURCE
+ bool has_extension_method;
public AssemblyName Name;
MethodInfo add_type_forwarder;
ListDictionary emitted_forwarders;
}
public bool HasExtensionMethods {
- set { has_extension_method = value; }
+ set {
+#if GMCS_SOURCE
+ has_extension_method = value;
+#endif
+ }
}
public bool IsClsCompliant {
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) {
+ else if (aname.GetPublicKey () == null && Name.GetPublicKey () != null && Name.GetPublicKey ().Length != 0) {
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;
}
#endif
+ static bool IsValidAssemblyVersion (string version)
+ {
+ Version v;
+ try {
+ v = new Version (version);
+ } catch {
+ try {
+ int major = int.Parse (version, CultureInfo.InvariantCulture);
+ v = new Version (major, 0);
+ } 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;
// 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>
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