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Viewing changes to external/nrefactory/ICSharpCode.NRefactory.CSharp/Ast/SyntaxTree.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/Ast/SyntaxTree.cs
 
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// 
 
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// SyntaxTree.cs
 
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//
 
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// Author:
 
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//       Mike Krüger <mkrueger@novell.com>
 
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// 
 
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// Copyright (c) 2010 Novell, Inc (http://www.novell.com)
 
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// 
 
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// Permission is hereby granted, free of charge, to any person obtaining a copy
 
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// of this software and associated documentation files (the "Software"), to deal
 
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// in the Software without restriction, including without limitation the rights
 
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 
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// copies of the Software, and to permit persons to whom the Software is
 
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// furnished to do so, subject to the following conditions:
 
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// 
 
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// The above copyright notice and this permission notice shall be included in
 
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// 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, EXPRESS OR
 
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 
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// THE SOFTWARE.
 
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using System;
 
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using System.Collections.Generic;
 
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using ICSharpCode.NRefactory.CSharp.Resolver;
 
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using ICSharpCode.NRefactory.CSharp.TypeSystem;
 
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using ICSharpCode.NRefactory.TypeSystem;
 
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using System.Threading;
 
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using Mono.CSharp;
 
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using System.IO;
 
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using ICSharpCode.NRefactory.Editor;
 
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namespace ICSharpCode.NRefactory.CSharp
 
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{
 
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        [Obsolete("CompilationUnit was renamed to SyntaxTree", true)]
 
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        public class CompilationUnit {}
 
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        public class SyntaxTree : AstNode
 
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        {
 
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                public static readonly Role<AstNode> MemberRole = new Role<AstNode>("Member", AstNode.Null);
 
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                public override NodeType NodeType {
 
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                        get {
 
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                                return NodeType.Unknown;
 
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                        }
 
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                }
 
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                string fileName;
 
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                /// <summary>
 
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                /// Gets/Sets the file name of this syntax tree.
 
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                /// </summary>
 
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                public string FileName {
 
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                        get { return fileName; }
 
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                        set {
 
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                                ThrowIfFrozen();
 
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                                fileName = value;
 
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                        }
 
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                }
 
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                public AstNodeCollection<AstNode> Members {
 
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                        get { return GetChildrenByRole(MemberRole); }
 
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                }
 
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                IList<string> conditionalSymbols = null;
 
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                List<Error> errors = new List<Error> ();
 
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                public List<Error> Errors {
 
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                        get { return errors; }
 
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                }
 
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                /// <summary>
 
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                /// Gets the conditional symbols used to parse the source file. Note that this list contains
 
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                /// the conditional symbols at the start of the first token in the file - including the ones defined
 
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                /// in the source file.
 
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                /// </summary>
 
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                public IList<string> ConditionalSymbols {
 
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                        get {
 
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                                return conditionalSymbols ?? EmptyList<string>.Instance;
 
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                        }
 
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                        internal set {
 
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                                conditionalSymbols = value;
 
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                        }
 
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                }
 
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                /// <summary>
 
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                /// Gets the expression that was on top of the parse stack.
 
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                /// This is the only way to get an expression that isn't part of a statment.
 
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                /// (eg. when an error follows an expression).
 
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                /// 
 
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                /// This is used for code completion to 'get the expression before a token - like ., &lt;, ('.
 
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                /// </summary>
 
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                public AstNode TopExpression {
 
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                        get;
 
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                        internal set;
 
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                }
 
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                public SyntaxTree ()
 
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                {
 
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                }
 
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                /// <summary>
 
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                /// Gets all defined types in this syntax tree.
 
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                /// </summary>
 
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                /// <returns>
 
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                /// A list containing <see cref="TypeDeclaration"/> or <see cref="DelegateDeclaration"/> nodes.
 
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                /// </returns>
 
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                public IEnumerable<EntityDeclaration> GetTypes(bool includeInnerTypes = false)
 
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                {
 
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                        Stack<AstNode> nodeStack = new Stack<AstNode> ();
 
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                        nodeStack.Push(this);
 
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                        while (nodeStack.Count > 0) {
 
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                                var curNode = nodeStack.Pop();
 
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                                if (curNode is TypeDeclaration || curNode is DelegateDeclaration) {
 
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                                        yield return (EntityDeclaration)curNode;
 
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                                }
 
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                                foreach (var child in curNode.Children) {
 
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                                        if (!(child is Statement || child is Expression) &&
 
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                                            (child.Role != Roles.TypeMemberRole || ((child is TypeDeclaration || child is DelegateDeclaration) && includeInnerTypes)))
 
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                                                nodeStack.Push (child);
 
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                                }
 
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                        }
 
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                }
 
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                protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
 
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                {
 
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                        SyntaxTree o = other as SyntaxTree;
 
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                        return o != null && this.Members.DoMatch(o.Members, match);
 
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                }
 
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                public override void AcceptVisitor (IAstVisitor visitor)
 
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                {
 
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                        visitor.VisitSyntaxTree (this);
 
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                }
 
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                public override T AcceptVisitor<T> (IAstVisitor<T> visitor)
 
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                {
 
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                        return visitor.VisitSyntaxTree (this);
 
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                }
 
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                public override S AcceptVisitor<T, S> (IAstVisitor<T, S> visitor, T data)
 
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                {
 
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                        return visitor.VisitSyntaxTree (this, data);
 
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                }
 
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                /// <summary>
 
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                /// Converts this syntax tree into a parsed file that can be stored in the type system.
 
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                /// </summary>
 
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                public CSharpUnresolvedFile ToTypeSystem ()
 
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                {
 
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                        if (string.IsNullOrEmpty (this.FileName))
 
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                                throw new InvalidOperationException ("Cannot use ToTypeSystem() on a syntax tree without file name.");
 
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                        var v = new TypeSystemConvertVisitor (this.FileName);
 
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                        v.VisitSyntaxTree (this);
 
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                        return v.UnresolvedFile;
 
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                }
 
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                public static SyntaxTree Parse (string program, string fileName = "", CompilerSettings settings = null, CancellationToken cancellationToken = default (CancellationToken))
 
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                {
 
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                        var parser = new CSharpParser (settings);
 
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                        return parser.Parse (program, fileName);
 
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                }
 
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                public static SyntaxTree Parse (TextReader reader, string fileName = "", CompilerSettings settings = null, CancellationToken cancellationToken = default (CancellationToken))
 
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                {
 
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                        var parser = new CSharpParser (settings);
 
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                        return parser.Parse (reader, fileName);
 
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                }
 
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                public static SyntaxTree Parse (Stream stream, string fileName = "", CompilerSettings settings = null, CancellationToken cancellationToken = default (CancellationToken))
 
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                {
 
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                        var parser = new CSharpParser (settings);
 
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                        return parser.Parse (stream, fileName);
 
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                }
 
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                public static SyntaxTree Parse (ITextSource textSource, string fileName = "", CompilerSettings settings = null, CancellationToken cancellationToken = default (CancellationToken))
 
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                {
 
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                        var parser = new CSharpParser (settings);
 
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                        return parser.Parse (textSource, fileName);
 
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                }
 
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        }
 
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}