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author | Jason Smith <jason.smith@xamarin.com> | 2016-03-22 13:02:25 -0700 |
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committer | Jason Smith <jason.smith@xamarin.com> | 2016-03-22 16:13:41 -0700 |
commit | 17fdde66d94155fc62a034fa6658995bef6fd6e5 (patch) | |
tree | b5e5073a2a7b15cdbe826faa5c763e270a505729 /ICSharpCode.Decompiler/Ast/Transforms/ContextTrackingVisitor.cs | |
download | xamarin-forms-17fdde66d94155fc62a034fa6658995bef6fd6e5.tar.gz xamarin-forms-17fdde66d94155fc62a034fa6658995bef6fd6e5.tar.bz2 xamarin-forms-17fdde66d94155fc62a034fa6658995bef6fd6e5.zip |
Initial import
Diffstat (limited to 'ICSharpCode.Decompiler/Ast/Transforms/ContextTrackingVisitor.cs')
-rw-r--r-- | ICSharpCode.Decompiler/Ast/Transforms/ContextTrackingVisitor.cs | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/ICSharpCode.Decompiler/Ast/Transforms/ContextTrackingVisitor.cs b/ICSharpCode.Decompiler/Ast/Transforms/ContextTrackingVisitor.cs new file mode 100644 index 00000000..1d1f3d08 --- /dev/null +++ b/ICSharpCode.Decompiler/Ast/Transforms/ContextTrackingVisitor.cs @@ -0,0 +1,111 @@ +// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team +// +// Permission is hereby granted, free of charge, to any person obtaining a copy of this +// software and associated documentation files (the "Software"), to deal in the Software +// without restriction, including without limitation the rights to use, copy, modify, merge, +// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons +// to whom the Software is furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in all copies or +// substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, +// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR +// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE +// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +// DEALINGS IN THE SOFTWARE. + +using System; +using System.Diagnostics; +using ICSharpCode.NRefactory.CSharp; +using Mono.Cecil; + +namespace ICSharpCode.Decompiler.Ast.Transforms +{ + /// <summary> + /// Base class for AST visitors that need the current type/method context info. + /// </summary> + public abstract class ContextTrackingVisitor<TResult> : DepthFirstAstVisitor<object, TResult>, IAstTransform + { + protected readonly DecompilerContext context; + + protected ContextTrackingVisitor(DecompilerContext context) + { + if (context == null) + throw new ArgumentNullException("context"); + this.context = context; + } + + public override TResult VisitTypeDeclaration(TypeDeclaration typeDeclaration, object data) + { + TypeDefinition oldType = context.CurrentType; + try { + context.CurrentType = typeDeclaration.Annotation<TypeDefinition>(); + return base.VisitTypeDeclaration(typeDeclaration, data); + } finally { + context.CurrentType = oldType; + } + } + + public override TResult VisitMethodDeclaration(MethodDeclaration methodDeclaration, object data) + { + Debug.Assert(context.CurrentMethod == null); + try { + context.CurrentMethod = methodDeclaration.Annotation<MethodDefinition>(); + return base.VisitMethodDeclaration(methodDeclaration, data); + } finally { + context.CurrentMethod = null; + } + } + + public override TResult VisitConstructorDeclaration(ConstructorDeclaration constructorDeclaration, object data) + { + Debug.Assert(context.CurrentMethod == null); + try { + context.CurrentMethod = constructorDeclaration.Annotation<MethodDefinition>(); + return base.VisitConstructorDeclaration(constructorDeclaration, data); + } finally { + context.CurrentMethod = null; + } + } + + public override TResult VisitDestructorDeclaration(DestructorDeclaration destructorDeclaration, object data) + { + Debug.Assert(context.CurrentMethod == null); + try { + context.CurrentMethod = destructorDeclaration.Annotation<MethodDefinition>(); + return base.VisitDestructorDeclaration(destructorDeclaration, data); + } finally { + context.CurrentMethod = null; + } + } + + public override TResult VisitOperatorDeclaration(OperatorDeclaration operatorDeclaration, object data) + { + Debug.Assert(context.CurrentMethod == null); + try { + context.CurrentMethod = operatorDeclaration.Annotation<MethodDefinition>(); + return base.VisitOperatorDeclaration(operatorDeclaration, data); + } finally { + context.CurrentMethod = null; + } + } + + public override TResult VisitAccessor(Accessor accessor, object data) + { + Debug.Assert(context.CurrentMethod == null); + try { + context.CurrentMethod = accessor.Annotation<MethodDefinition>(); + return base.VisitAccessor(accessor, data); + } finally { + context.CurrentMethod = null; + } + } + + void IAstTransform.Run(AstNode node) + { + node.AcceptVisitor(this, null); + } + } +} |