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//
// symbolwriter.cs: The debug symbol writer
//
// Authors: Martin Baulig (martin@ximian.com)
// Marek Safar (marek.safar@gmail.com)
//
// Dual licensed under the terms of the MIT X11 or GNU GPL
//
// Copyright 2003 Ximian, Inc (http://www.ximian.com)
// Copyright 2004-2010 Novell, Inc
//
using System;
#if STATIC
using IKVM.Reflection;
using IKVM.Reflection.Emit;
#else
using System.Reflection;
using System.Reflection.Emit;
#endif
using Mono.CompilerServices.SymbolWriter;
namespace Mono.CSharp
{
static class SymbolWriter
{
#if !NET_4_0 && !STATIC
delegate int GetILOffsetFunc (ILGenerator ig);
static GetILOffsetFunc get_il_offset_func;
delegate Guid GetGuidFunc (ModuleBuilder mb);
static GetGuidFunc get_guid_func;
static void Initialize ()
{
var mi = typeof (ILGenerator).GetMethod (
"Mono_GetCurrentOffset",
BindingFlags.Static | BindingFlags.NonPublic);
if (mi == null)
throw new MissingMethodException ("Mono_GetCurrentOffset");
get_il_offset_func = (GetILOffsetFunc) System.Delegate.CreateDelegate (
typeof (GetILOffsetFunc), mi);
mi = typeof (ModuleBuilder).GetMethod (
"Mono_GetGuid",
BindingFlags.Static | BindingFlags.NonPublic);
if (mi == null)
throw new MissingMethodException ("Mono_GetGuid");
get_guid_func = (GetGuidFunc) System.Delegate.CreateDelegate (
typeof (GetGuidFunc), mi);
}
#endif
static int GetILOffset (ILGenerator ig)
{
#if NET_4_0 || STATIC
return ig.ILOffset;
#else
if (get_il_offset_func == null)
Initialize ();
return get_il_offset_func (ig);
#endif
}
public static Guid GetGuid (ModuleBuilder module)
{
#if NET_4_0 || STATIC
return module.ModuleVersionId;
#else
if (get_guid_func == null)
Initialize ();
return get_guid_func (module);
#endif
}
public static bool HasSymbolWriter {
get { return symwriter != null; }
}
public static MonoSymbolWriter symwriter;
public static void DefineLocalVariable (string name, LocalBuilder builder)
{
if (symwriter != null) {
symwriter.DefineLocalVariable (builder.LocalIndex, name);
}
}
public static SourceMethodBuilder OpenMethod (ICompileUnit file, IMethodDef method)
{
if (symwriter != null)
return symwriter.OpenMethod (file, -1 /* Not used */, method);
else
return null;
}
public static void CloseMethod ()
{
if (symwriter != null)
symwriter.CloseMethod ();
}
public static int OpenScope (ILGenerator ig)
{
if (symwriter != null) {
int offset = GetILOffset (ig);
return symwriter.OpenScope (offset);
} else {
return -1;
}
}
public static void CloseScope (ILGenerator ig)
{
if (symwriter != null) {
int offset = GetILOffset (ig);
symwriter.CloseScope (offset);
}
}
public static void DefineAnonymousScope (int id)
{
if (symwriter != null)
symwriter.DefineAnonymousScope (id);
}
public static void DefineScopeVariable (int scope, LocalBuilder builder)
{
if (symwriter != null) {
symwriter.DefineScopeVariable (scope, builder.LocalIndex);
}
}
public static void DefineScopeVariable (int scope)
{
if (symwriter != null)
symwriter.DefineScopeVariable (scope, -1);
}
public static void DefineCapturedLocal (int scope_id, string name,
string captured_name)
{
if (symwriter != null)
symwriter.DefineCapturedLocal (scope_id, name, captured_name);
}
public static void DefineCapturedParameter (int scope_id, string name,
string captured_name)
{
if (symwriter != null)
symwriter.DefineCapturedParameter (scope_id, name, captured_name);
}
public static void DefineCapturedThis (int scope_id, string captured_name)
{
if (symwriter != null)
symwriter.DefineCapturedThis (scope_id, captured_name);
}
public static void DefineCapturedScope (int scope_id, int id, string captured_name)
{
if (symwriter != null)
symwriter.DefineCapturedScope (scope_id, id, captured_name);
}
public static void OpenCompilerGeneratedBlock (EmitContext ec)
{
if (symwriter != null) {
int offset = GetILOffset (ec.ig);
symwriter.OpenCompilerGeneratedBlock (offset);
}
}
public static void CloseCompilerGeneratedBlock (EmitContext ec)
{
if (symwriter != null) {
int offset = GetILOffset (ec.ig);
symwriter.CloseCompilerGeneratedBlock (offset);
}
}
public static void StartIteratorBody (EmitContext ec)
{
if (symwriter != null) {
int offset = GetILOffset (ec.ig);
symwriter.StartIteratorBody (offset);
}
}
public static void EndIteratorBody (EmitContext ec)
{
if (symwriter != null) {
int offset = GetILOffset (ec.ig);
symwriter.EndIteratorBody (offset);
}
}
public static void StartIteratorDispatcher (EmitContext ec)
{
if (symwriter != null) {
int offset = GetILOffset (ec.ig);
symwriter.StartIteratorDispatcher (offset);
}
}
public static void EndIteratorDispatcher (EmitContext ec)
{
if (symwriter != null) {
int offset = GetILOffset (ec.ig);
symwriter.EndIteratorDispatcher (offset);
}
}
public static void MarkSequencePoint (ILGenerator ig, Location loc)
{
if (symwriter != null) {
SourceFileEntry file = loc.SourceFile.SourceFileEntry;
int offset = GetILOffset (ig);
symwriter.MarkSequencePoint (offset, file, loc.Row, loc.Column, false);
}
}
public static void Reset ()
{
symwriter = null;
}
}
}
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