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Viewing changes to external/nrefactory/ICSharpCode.NRefactory.CSharp/Parser/mcs/SourceMethodBuilder.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
Import upstream version 4.0.5+dfsg

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external/nrefactory/ICSharpCode.NRefactory.CSharp/Parser/mcs/SourceMethodBuilder.cs
 
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//
 
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// SourceMethodBuilder.cs
 
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//
 
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// Authors:
 
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//   Martin Baulig (martin@ximian.com)
 
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//   Marek Safar (marek.safar@gmail.com)
 
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//
 
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// (C) 2002 Ximian, Inc.  http://www.ximian.com
 
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// Copyright (C) 2012 Xamarin Inc (http://www.xamarin.com)
 
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//
 
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// Permission is hereby granted, free of charge, to any person obtaining
 
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// a copy of this software and associated documentation files (the
 
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// "Software"), to deal in the Software without restriction, including
 
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// without limitation the rights to use, copy, modify, merge, publish,
 
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// distribute, sublicense, and/or sell copies of the Software, and to
 
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// permit persons to whom the Software is furnished to do so, subject to
 
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// the following conditions:
 
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// 
 
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// The above copyright notice and this permission notice shall be
 
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// included in all copies or substantial portions of the Software.
 
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// 
 
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
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//
 
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using System.Collections.Generic;
 
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namespace Mono.CompilerServices.SymbolWriter
 
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{
 
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        public class SourceMethodBuilder
 
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        {
 
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                List<LocalVariableEntry> _locals;
 
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                List<CodeBlockEntry> _blocks;
 
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                List<ScopeVariable> _scope_vars;
 
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                Stack<CodeBlockEntry> _block_stack;
 
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                readonly List<LineNumberEntry> method_lines;
 
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                readonly ICompileUnit _comp_unit;
 
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                readonly int ns_id;
 
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                readonly IMethodDef method;
 
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                public SourceMethodBuilder (ICompileUnit comp_unit)
 
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                {
 
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                        this._comp_unit = comp_unit;
 
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                        method_lines = new List<LineNumberEntry> ();
 
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                }
 
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                public SourceMethodBuilder (ICompileUnit comp_unit, int ns_id, IMethodDef method)
 
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                        : this (comp_unit)
 
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                {
 
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                        this.ns_id = ns_id;
 
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                        this.method = method;
 
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                }
 
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                public void MarkSequencePoint (int offset, SourceFileEntry file, int line, int column, bool is_hidden)
 
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                {
 
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                        int file_idx = file != null ? file.Index : 0;
 
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                        var lne = new LineNumberEntry (file_idx, line, column, offset, is_hidden);
 
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                        if (method_lines.Count > 0) {
 
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                                var prev = method_lines[method_lines.Count - 1];
 
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                                //
 
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                                // Same offset cannot be used for multiple lines
 
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                                // 
 
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                                if (prev.Offset == offset) {
 
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                                        //
 
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                                        // Use the new location because debugger will adjust
 
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                                        // the breakpoint to next line with sequence point
 
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                                        //
 
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                                        if (LineNumberEntry.LocationComparer.Default.Compare (lne, prev) > 0)
 
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                                                method_lines[method_lines.Count - 1] = lne;
 
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                                        return;
 
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                                }
 
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                        }
 
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                        method_lines.Add (lne);
 
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                }
 
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                public void StartBlock (CodeBlockEntry.Type type, int start_offset)
 
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                {
 
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                        if (_block_stack == null) {
 
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                                _block_stack = new Stack<CodeBlockEntry> ();
 
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                        }
 
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                        if (_blocks == null)
 
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                                _blocks = new List<CodeBlockEntry> ();
 
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                        int parent = CurrentBlock != null ? CurrentBlock.Index : -1;
 
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                        CodeBlockEntry block = new CodeBlockEntry (
 
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                                _blocks.Count + 1, parent, type, start_offset);
 
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                        _block_stack.Push (block);
 
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                        _blocks.Add (block);
 
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                }
 
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                public void EndBlock (int end_offset)
 
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                {
 
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                        CodeBlockEntry block = (CodeBlockEntry) _block_stack.Pop ();
 
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                        block.Close (end_offset);
 
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                }
 
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                public CodeBlockEntry[] Blocks {
 
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                        get {
 
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                                if (_blocks == null)
 
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                                        return new CodeBlockEntry [0];
 
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                                CodeBlockEntry[] retval = new CodeBlockEntry [_blocks.Count];
 
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                                _blocks.CopyTo (retval, 0);
 
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                                return retval;
 
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                        }
 
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                }
 
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                public CodeBlockEntry CurrentBlock {
 
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                        get {
 
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                                if ((_block_stack != null) && (_block_stack.Count > 0))
 
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                                        return (CodeBlockEntry) _block_stack.Peek ();
 
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                                else
 
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                                        return null;
 
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                        }
 
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                }
 
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                public LocalVariableEntry[] Locals {
 
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                        get {
 
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                                if (_locals == null)
 
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                                        return new LocalVariableEntry [0];
 
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                                else {
 
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                                        return _locals.ToArray ();
 
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                                }
 
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                        }
 
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                }
 
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                public ICompileUnit SourceFile {
 
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                        get {
 
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                                return _comp_unit;
 
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                        }
 
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                }
 
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                public void AddLocal (int index, string name)
 
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                {
 
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                        if (_locals == null)
 
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                                _locals = new List<LocalVariableEntry> ();
 
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                        int block_idx = CurrentBlock != null ? CurrentBlock.Index : 0;
 
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                        _locals.Add (new LocalVariableEntry (index, name, block_idx));
 
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                }
 
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                public ScopeVariable[] ScopeVariables {
 
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                        get {
 
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                                if (_scope_vars == null)
 
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                                        return new ScopeVariable [0];
 
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                                return _scope_vars.ToArray ();
 
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                        }
 
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                }
 
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                public void AddScopeVariable (int scope, int index)
 
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                {
 
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                        if (_scope_vars == null)
 
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                                _scope_vars = new List<ScopeVariable> ();
 
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                        _scope_vars.Add (
 
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                                new ScopeVariable (scope, index));
 
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                }
 
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                public void DefineMethod (MonoSymbolFile file)
 
172
                {
 
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                        DefineMethod (file, method.Token);
 
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                }
 
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176
                public void DefineMethod (MonoSymbolFile file, int token)
 
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                {
 
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                        MethodEntry entry = new MethodEntry (
 
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                                file, _comp_unit.Entry, token, ScopeVariables,
 
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                                Locals, method_lines.ToArray (), Blocks, null, MethodEntry.Flags.ColumnsInfoIncluded, ns_id);
 
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                        file.AddMethod (entry);
 
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                }
 
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        }
 
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}