2 // rootcontext.cs: keeps track of our tree representation, and assemblies loaded.
4 // Author: Miguel de Icaza (miguel@ximian.com)
5 // Ravi Pratap (ravi@ximian.com)
6 // Marek Safar (marek.safar@gmail.com)
9 // Dual licensed under the terms of the MIT X11 or GNU GPL
11 // Copyright 2001 Ximian, Inc (http://www.ximian.com)
12 // Copyright 2004-2008 Novell, Inc
15 using System
.Collections
.Generic
;
16 using System
.Reflection
;
17 using System
.Reflection
.Emit
;
18 using System
.Diagnostics
;
20 namespace Mono
.CSharp
{
22 public enum LanguageVersion
30 Default
= LanguageVersion
.V_4
,
33 public enum MetadataVersion
40 public class RootContext
{
43 // COMPILER OPTIONS CLASS
45 public static Target Target
;
46 public static Platform Platform
;
47 public static string TargetExt
;
48 public static bool VerifyClsCompliance
= true;
49 public static bool Optimize
= true;
50 public static LanguageVersion Version
;
51 public static bool EnhancedWarnings
;
53 public static MetadataVersion MetadataCompatibilityVersion
;
56 // We keep strongname related info here because
57 // it's also used as complier options from CSC 8.x
59 public static string StrongNameKeyFile
;
60 public static string StrongNameKeyContainer
;
61 public static bool StrongNameDelaySign
;
64 // If set, enable XML documentation generation
66 public static Documentation Documentation
;
68 static public string MainClass
;
71 // The default compiler checked state
73 static public bool Checked
;
76 // If true, it means that the compiler is executing as
77 // in eval mode so unresolved variables are resolved in
78 // static classes maintained by the eval engine.
80 static public bool EvalMode
;
83 // If true, the compiler is operating in statement mode,
84 // this currently turns local variable declaration into
85 // static variables of a class
87 static public bool StatementMode
;
90 // Whether to allow Unsafe code
92 static public bool Unsafe
;
95 // Whether we are being linked against the standard libraries.
96 // This is only used to tell whether `System.Object' should
97 // have a base class or not.
99 public static bool StdLib
;
101 public static bool NeedsEntryPoint
{
102 get { return Target == Target.Exe || Target == Target.WinExe; }
106 // COMPILER OPTIONS CLASS END
110 // Contains the parsed tree
112 static ModuleCompiled root
;
115 // This hashtable contains all of the #definitions across the source code
116 // it is used by the ConditionalAttribute handler.
118 static List
<string> AllDefines
;
121 // Holds a reference to the Private Implementation Details
124 static List
<TypeBuilder
> helper_classes
;
126 static TypeBuilder impl_details_class
;
128 public static List
<Enum
> hack_corlib_enums
= new List
<Enum
> ();
133 static RootContext ()
138 public static void PartialReset ()
143 public static void Reset (bool full
)
145 impl_details_class
= null;
146 helper_classes
= null;
155 StrongNameKeyFile
= null;
156 StrongNameKeyContainer
= null;
157 StrongNameDelaySign
= false;
161 Platform
= Platform
.AnyCPU
;
162 Version
= LanguageVersion
.Default
;
163 Documentation
= null;
164 impl_details_class
= null;
165 helper_classes
= null;
168 MetadataCompatibilityVersion
= MetadataVersion
.v4
;
170 MetadataCompatibilityVersion
= MetadataVersion
.v2
;
174 // Setup default defines
176 AllDefines
= new List
<string> ();
177 AddConditional ("__MonoCS__");
180 public static void AddConditional (string p
)
182 if (AllDefines
.Contains (p
))
187 public static bool IsConditionalDefined (string value)
189 return AllDefines
.Contains (value);
192 static public ModuleCompiled ToplevelTypes
{
194 set { root = value; }
198 // This function is used to resolve the hierarchy tree.
199 // It processes interfaces, structs and classes in that order.
201 // It creates the TypeBuilder's as it processes the user defined
204 static public void ResolveTree ()
209 // Interfaces are processed next, as classes and
210 // structs might inherit from an object or implement
211 // a set of interfaces, we need to be able to tell
212 // them appart by just using the TypeManager.
214 foreach (TypeContainer tc
in root
.Types
)
217 foreach (TypeContainer tc
in root
.Types
)
221 static void HackCorlib ()
227 // HACK: When building corlib mcs uses loaded mscorlib which
228 // has different predefined types and this method sets mscorlib types
229 // to be same to avoid type check errors in CreateType.
231 var type
= typeof (Type
);
232 var system_4_type_arg
= new[] { type, type, type, type }
;
234 MethodInfo set_corlib_type_builders
=
235 typeof (System
.Reflection
.Emit
.AssemblyBuilder
).GetMethod (
236 "SetCorlibTypeBuilders", BindingFlags
.NonPublic
| BindingFlags
.Instance
, null,
237 system_4_type_arg
, null);
239 if (set_corlib_type_builders
== null) {
240 root
.Compiler
.Report
.Warning (-26, 3, "The compilation may fail due to missing `{0}.SetCorlibTypeBuilders(...)' method",
241 typeof (System
.Reflection
.Emit
.AssemblyBuilder
).FullName
);
245 object[] args
= new object[4];
246 args
[0] = TypeManager
.object_type
.GetMetaInfo ();
247 args
[1] = TypeManager
.value_type
.GetMetaInfo ();
248 args
[2] = TypeManager
.enum_type
.GetMetaInfo ();
249 args
[3] = TypeManager
.void_type
.GetMetaInfo ();
250 set_corlib_type_builders
.Invoke (CodeGen
.Assembly
.Builder
, args
);
252 // Another Mono corlib HACK
253 // mono_class_layout_fields requires to have enums created
254 // before creating a class which used the enum for any of its fields
255 foreach (var e
in hack_corlib_enums
)
260 // Closes all open types
264 // We usually use TypeBuilder types. When we are done
265 // creating the type (which will happen after we have added
266 // methods, fields, etc) we need to "Define" them before we
267 // can save the Assembly
269 static public void CloseTypes ()
273 foreach (TypeContainer tc
in root
.Types
){
277 if (root
.CompilerGeneratedClasses
!= null)
278 foreach (CompilerGeneratedClass c
in root
.CompilerGeneratedClasses
)
282 // If we have a <PrivateImplementationDetails> class, close it
284 if (helper_classes
!= null){
285 foreach (TypeBuilder type_builder
in helper_classes
) {
286 PredefinedAttributes
.Get
.CompilerGenerated
.EmitAttribute (type_builder
);
287 type_builder
.CreateType ();
291 helper_classes
= null;
295 /// Used to register classes that need to be closed after all the
296 /// user defined classes
298 public static void RegisterCompilerGeneratedType (TypeBuilder helper_class
)
300 if (helper_classes
== null)
301 helper_classes
= new List
<TypeBuilder
> ();
303 helper_classes
.Add (helper_class
);
307 // Populates the structs and classes with fields and methods
310 // This is invoked after all interfaces, structs and classes
311 // have been defined through `ResolveTree'
312 static public void PopulateTypes ()
314 foreach (TypeContainer tc
in ToplevelTypes
.Types
)
315 tc
.ResolveTypeParameters ();
317 foreach (TypeContainer tc
in ToplevelTypes
.Types
) {
320 } catch (Exception e
) {
321 throw new InternalErrorException (tc
, e
);
326 static public void EmitCode ()
328 foreach (var tc
in ToplevelTypes
.Types
)
329 tc
.DefineConstants ();
331 foreach (TypeContainer tc
in ToplevelTypes
.Types
)
334 if (ToplevelTypes
.Compiler
.Report
.Errors
> 0)
337 foreach (TypeContainer tc
in ToplevelTypes
.Types
)
340 if (root
.CompilerGeneratedClasses
!= null)
341 foreach (CompilerGeneratedClass c
in root
.CompilerGeneratedClasses
)
344 CodeGen
.Assembly
.Emit (root
);
349 // Public Field, used to track which method is the public entry
352 static public Method EntryPoint
;
355 // These are used to generate unique names on the structs and fields.
357 static int field_count
;
360 // Makes an initialized struct, returns the field builder that
361 // references the data. Thanks go to Sergey Chaban for researching
362 // how to do this. And coming up with a shorter mechanism than I
363 // was able to figure out.
365 // This works but makes an implicit public struct $ArrayType$SIZE and
366 // makes the fields point to it. We could get more control if we did
369 // 1. DefineNestedType on the impl_details_class with our struct.
371 // 2. Define the field on the impl_details_class
373 static public FieldBuilder
MakeStaticData (byte [] data
)
377 if (impl_details_class
== null){
378 impl_details_class
= ToplevelTypes
.Builder
.DefineType (
379 "<PrivateImplementationDetails>",
380 TypeAttributes
.NotPublic
,
381 TypeManager
.object_type
.GetMetaInfo ());
383 RegisterCompilerGeneratedType (impl_details_class
);
386 fb
= impl_details_class
.DefineInitializedData (
387 "$$field-" + (field_count
++), data
,
388 FieldAttributes
.Static
| FieldAttributes
.Assembly
);
393 public static void CheckUnsafeOption (Location loc
, Report Report
)
396 Report
.Error (227, loc
,
397 "Unsafe code requires the `unsafe' command line option to be specified");