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//
// System.Diagnostics.SymbolStore/MonoSymbolWriter.cs
//
// Author:
// Martin Baulig (martin@gnome.org)
//
// This is the default implementation of the System.Diagnostics.SymbolStore.ISymbolWriter
// interface.
//
// (C) 2002 Ximian, Inc. http://www.ximian.com
//
using System;
using System.Reflection;
using System.Reflection.Emit;
using System.Runtime.CompilerServices;
using System.Diagnostics.SymbolStore;
using System.Collections;
using System.IO;
namespace Mono.CSharp.Debugger
{
internal class SourceFile : SourceFileEntry, ISymbolDocumentWriter
{
private ArrayList _methods = new ArrayList ();
public SourceFile (MonoSymbolFile file, string filename)
: base (file, filename)
{ }
public new SourceMethod[] Methods {
get {
SourceMethod[] retval = new SourceMethod [_methods.Count];
_methods.CopyTo (retval);
return retval;
}
}
public void AddMethod (SourceMethod method)
{
_methods.Add (method);
}
void ISymbolDocumentWriter.SetCheckSum (Guid algorithmId, byte[] checkSum)
{
throw new NotSupportedException ();
}
void ISymbolDocumentWriter.SetSource (byte[] source)
{
throw new NotSupportedException ();
}
}
internal class SourceMethod
{
LineNumberEntry [] lines;
private ArrayList _locals;
private ArrayList _blocks;
private Stack _block_stack;
private int next_block_id = 0;
internal readonly MethodBase _method_base;
internal SourceFile _source_file;
internal int _token;
private int _namespace_id;
private LineNumberEntry _start, _end;
private MonoSymbolFile _file;
private LexicalBlockEntry _implicit_block;
internal SourceMethod (MonoSymbolFile file, SourceFile source_file,
int startLine, int startColumn, int endLine, int endColumn,
MethodBase method_base, int namespace_id)
{
this._file = file;
this._method_base = method_base;
this._source_file = source_file;
this._namespace_id = namespace_id;
this._start = new LineNumberEntry (startLine, 0);
this._end = new LineNumberEntry (endLine, 0);
this._implicit_block = new LexicalBlockEntry (0, 0);
}
public void StartBlock (int startOffset)
{
LexicalBlockEntry block = new LexicalBlockEntry (++next_block_id, startOffset);
if (_block_stack == null)
_block_stack = new Stack ();
_block_stack.Push (block);
if (_blocks == null)
_blocks = new ArrayList ();
_blocks.Add (block);
}
public void EndBlock (int endOffset)
{
LexicalBlockEntry block = (LexicalBlockEntry) _block_stack.Pop ();
block.Close (endOffset);
}
public LexicalBlockEntry[] Blocks {
get {
if (_blocks == null)
return new LexicalBlockEntry [0];
else {
LexicalBlockEntry[] retval = new LexicalBlockEntry [_blocks.Count];
_blocks.CopyTo (retval, 0);
return retval;
}
}
}
public LexicalBlockEntry CurrentBlock {
get {
if ((_block_stack != null) && (_block_stack.Count > 0))
return (LexicalBlockEntry) _block_stack.Peek ();
else
return _implicit_block;
}
}
public LineNumberEntry[] Lines {
get {
return lines;
}
}
public LocalVariableEntry[] Locals {
get {
if (_locals == null)
return new LocalVariableEntry [0];
else {
LocalVariableEntry[] retval = new LocalVariableEntry [_locals.Count];
_locals.CopyTo (retval, 0);
return retval;
}
}
}
public void AddLocal (string name, FieldAttributes attributes, byte[] signature)
{
if (_locals == null)
_locals = new ArrayList ();
_locals.Add (new LocalVariableEntry (name, attributes, signature, CurrentBlock.Index));
}
public MethodBase MethodBase {
get {
return _method_base;
}
}
public string FullName {
get {
return _method_base.DeclaringType.FullName + "." + _method_base.Name;
}
}
public Type ReturnType {
get {
if (_method_base is MethodInfo)
return ((MethodInfo)_method_base).ReturnType;
else if (_method_base is ConstructorInfo)
return _method_base.DeclaringType;
else
throw new NotSupportedException ();
}
}
public ParameterInfo[] Parameters {
get {
if (_method_base == null)
return new ParameterInfo [0];
ParameterInfo [] retval = _method_base.GetParameters ();
if (retval == null)
return new ParameterInfo [0];
else
return retval;
}
}
public SourceFile SourceFile {
get {
return _source_file;
}
}
public int Token {
get {
if (_token != 0)
return _token;
else
throw new NotSupportedException ();
}
}
public bool HasSource {
get {
return _source_file != null;
}
}
public LineNumberEntry Start {
get {
return _start;
}
}
public LineNumberEntry End {
get {
return _end;
}
}
public int NamespaceID {
get {
return _namespace_id;
}
}
//
// Passes on the lines from the MonoSymbolWriter. This method is
// free to mutate the lns array, and it does.
//
internal void SetLineNumbers (LineNumberEntry [] lns, int count)
{
int pos = 0;
int last_offset = -1;
int last_row = -1;
for (int i = 0; i < count; i++) {
LineNumberEntry line = lns [i];
if (line.Offset > last_offset) {
if (last_row >= 0)
lns [pos++] = new LineNumberEntry (last_row, last_offset);
last_row = line.Row;
last_offset = line.Offset;
} else if (line.Row > last_row) {
last_row = line.Row;
}
}
lines = new LineNumberEntry [count + ((last_row >= 0) ? 1 : 0)];
Array.Copy (lns, lines, pos);
if (last_row >= 0)
lines [pos] = new LineNumberEntry (last_row, last_offset);
}
}
public class MonoSymbolWriter : IMonoSymbolWriter
{
protected ModuleBuilder module_builder;
protected ArrayList locals = null;
protected ArrayList orphant_methods = null;
protected ArrayList methods = null;
protected Hashtable sources = null;
private MonoSymbolFile file = null;
LineNumberEntry [] current_method_lines;
int current_method_lines_pos = 0;
internal SourceMethod[] Methods {
get {
SourceMethod[] retval = new SourceMethod [methods.Count];
methods.CopyTo (retval);
return retval;
}
}
internal SourceFile[] Sources {
get {
SourceFile[] retval = new SourceFile [sources.Count];
sources.Values.CopyTo (retval, 0);
return retval;
}
}
private SourceMethod current_method = null;
//
// Interface IMonoSymbolWriter
//
public MonoSymbolWriter (ModuleBuilder mb)
{
this.module_builder = mb;
this.methods = new ArrayList ();
this.sources = new Hashtable ();
this.orphant_methods = new ArrayList ();
this.locals = new ArrayList ();
this.file = new MonoSymbolFile ();
this.current_method_lines = new LineNumberEntry [50];
}
public void Close ()
{
throw new InvalidOperationException ();
}
public byte[] CreateSymbolFile (AssemblyBuilder assembly_builder)
{
DoFixups (assembly_builder);
return CreateOutput (assembly_builder);
}
public void CloseNamespace () {
}
// Create and return a new IMonoSymbolDocumentWriter.
public ISymbolDocumentWriter DefineDocument (string url,
Guid language,
Guid languageVendor,
Guid documentType)
{
if (sources.ContainsKey (url))
return (ISymbolDocumentWriter)sources [url];
SourceFile source_info = new SourceFile (file, url);
sources.Add (url, source_info);
return source_info;
}
public void DefineField (
SymbolToken parent,
string name,
FieldAttributes attributes,
byte[] signature,
SymAddressKind addrKind,
int addr1,
int addr2,
int addr3)
{
throw new NotSupportedException ();
}
public void DefineGlobalVariable (
string name,
FieldAttributes attributes,
byte[] signature,
SymAddressKind addrKind,
int addr1,
int addr2,
int addr3)
{
throw new NotSupportedException ();
}
public void DefineLocalVariable (string name,
FieldAttributes attributes,
byte[] signature,
SymAddressKind addrKind,
int addr1,
int addr2,
int addr3,
int startOffset,
int endOffset)
{
if (current_method == null)
return;
current_method.AddLocal (name, attributes, signature);
}
public void DefineParameter (string name,
ParameterAttributes attributes,
int sequence,
SymAddressKind addrKind,
int addr1,
int addr2,
int addr3)
{
throw new NotSupportedException ();
}
public void DefineSequencePoints (ISymbolDocumentWriter document,
int[] offsets,
int[] lines,
int[] columns,
int[] endLines,
int[] endColumns)
{
throw new NotSupportedException ();
}
public void MarkSequencePoint (int offset, int line, int column)
{
if (current_method == null)
return;
if (current_method_lines_pos == current_method_lines.Length) {
LineNumberEntry [] tmp = current_method_lines;
current_method_lines = new LineNumberEntry [current_method_lines.Length * 2];
Array.Copy (tmp, current_method_lines, current_method_lines_pos);
}
current_method_lines [current_method_lines_pos++] = new LineNumberEntry (line, offset);
}
public void Initialize (IntPtr emitter, string filename, bool fFullBuild)
{
throw new NotSupportedException ();
}
public void OpenMethod (SymbolToken symbol_token)
{
throw new NotSupportedException ();
}
public void SetMethodSourceRange (ISymbolDocumentWriter startDoc,
int startLine, int startColumn,
ISymbolDocumentWriter endDoc,
int endLine, int endColumn)
{
throw new NotSupportedException ();
}
public void OpenMethod (ISymbolDocumentWriter document, int startLine, int startColumn,
int endLine, int endColumn, MethodBase method, int namespace_id)
{
SourceFile source_info = document as SourceFile;
if ((source_info == null) || (method == null))
throw new NullReferenceException ();
current_method = new SourceMethod (file, source_info, startLine, startColumn,
endLine, endColumn, method, namespace_id);
methods.Add (current_method);
source_info.AddMethod (current_method);
}
public void CloseMethod ()
{
current_method.SetLineNumbers (current_method_lines, current_method_lines_pos);
current_method_lines_pos = 0;
current_method = null;
}
public int DefineNamespace (string name, ISymbolDocumentWriter document,
string[] using_clauses, int parent)
{
if ((document == null) || (using_clauses == null))
throw new NullReferenceException ();
if (!(document is SourceFile))
throw new ArgumentException ();
SourceFile source_info = (SourceFile) document;
return source_info.DefineNamespace (name, using_clauses, parent);
}
public void OpenNamespace (string name)
{
throw new NotSupportedException ();
}
public int OpenScope (int startOffset)
{
if (current_method == null)
return 0;
current_method.StartBlock (startOffset);
return 0;
}
public void CloseScope (int endOffset)
{
if (current_method == null)
return;
current_method.EndBlock (endOffset);
}
public void SetScopeRange (int scopeID, int startOffset, int endOffset)
{
throw new NotSupportedException ();
}
public void SetSymAttribute (SymbolToken parent, string name, byte[] data)
{
throw new NotSupportedException ();
}
public void SetUnderlyingWriter (IntPtr underlyingWriter)
{
throw new NotSupportedException ();
}
public void SetUserEntryPoint (SymbolToken entryMethod)
{
throw new NotSupportedException ();
}
public void UsingNamespace (string fullName)
{
throw new NotSupportedException ();
}
//
// MonoSymbolWriter implementation
//
protected void DoFixups (Assembly assembly)
{
foreach (SourceMethod method in methods) {
if (method._method_base is MethodBuilder) {
MethodBuilder mb = (MethodBuilder) method._method_base;
method._token = mb.GetToken ().Token;
} else if (method._method_base is ConstructorBuilder) {
ConstructorBuilder cb = (ConstructorBuilder) method._method_base;
method._token = cb.GetToken ().Token;
} else
throw new NotSupportedException ();
if (method.SourceFile == null)
orphant_methods.Add (method);
}
}
protected byte[] CreateOutput (Assembly assembly)
{
foreach (SourceMethod method in Methods) {
if (!method.HasSource) {
Console.WriteLine ("INGORING METHOD: {0}", method);
continue;
}
method.SourceFile.DefineMethod (
method.MethodBase, method.Token, method.Locals,
method.Lines, method.Blocks, method.Start.Row, method.End.Row,
method.NamespaceID);
}
return file.CreateSymbolFile ();
}
}
}
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