Daniel Grunwald
14 years ago
44 changed files with 356 additions and 196 deletions
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// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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// software and associated documentation files (the "Software"), to deal in the Software
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// without restriction, including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
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// to whom the Software is 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 all copies or
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// 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 IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using System; |
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using ICSharpCode.NRefactory.CSharp.TypeSystem; |
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using ICSharpCode.NRefactory.Semantics; |
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using ICSharpCode.NRefactory.TypeSystem; |
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namespace ICSharpCode.NRefactory.CSharp.Resolver |
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{ |
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/// <summary>
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/// Resolves C# AST nodes.
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/// </summary>
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public class CSharpAstResolver |
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{ |
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readonly CSharpResolver initialResolverState; |
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readonly AstNode rootNode; |
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readonly CSharpParsedFile parsedFile; |
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ResolveVisitor resolveVisitor; |
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/// <summary>
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/// Creates a new C# AST resolver.
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/// </summary>
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/// <param name="compilation">The current compilation.</param>
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/// <param name="parsedFile">
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/// Result of the <see cref="TypeSystemConvertVisitor"/> for the file being passed. This is used for setting up the context on the resolver. The parsed file must be registered in the compilation.
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/// </param>
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/// <param name="compilationUnit">The compilation unit corresponding to the specified parsed file.</param>
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public CSharpAstResolver(ICompilation compilation, CompilationUnit compilationUnit, CSharpParsedFile parsedFile) |
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{ |
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if (compilation == null) |
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throw new ArgumentNullException("compilation"); |
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if (parsedFile == null) |
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throw new ArgumentNullException("parsedFile"); |
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if (compilationUnit == null) |
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throw new ArgumentNullException("compilationUnit"); |
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this.initialResolverState = new CSharpResolver(compilation); |
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this.rootNode = compilationUnit; |
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this.parsedFile = parsedFile; |
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} |
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/// <summary>
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/// Creates a new C# AST resolver.
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/// </summary>
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/// <param name="resolver">The resolver state at the root node.</param>
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/// <param name="rootNode">The root node of the resolved tree.</param>
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/// <param name="parsedFile">The parsed file for the nodes being resolved. This parameter is used only
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/// when the root node is on the type level; it is not necessary when an expression is passed.
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/// This parameter may be null.</param>
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public CSharpAstResolver(CSharpResolver resolver, AstNode rootNode, CSharpParsedFile parsedFile = null) |
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{ |
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if (resolver == null) |
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throw new ArgumentNullException("resolver"); |
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if (rootNode == null) |
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throw new ArgumentNullException("rootNode"); |
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this.initialResolverState = resolver.Clone(); |
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this.rootNode = rootNode; |
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this.parsedFile = parsedFile; |
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} |
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/// <summary>
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/// Applies a resolver navigator. This will resolve the nodes requested by the navigator, and will inform the
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/// navigator of the results.
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/// This method must be called as the first operation on the CSharpAstResolver, it is invalid to apply a navigator
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/// after a portion of the file was already resolved.
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/// </summary>
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public void ApplyNavigator(IResolveVisitorNavigator navigator) |
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{ |
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if (resolveVisitor != null) |
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throw new InvalidOperationException("Applying a navigator is only valid as the first operation on the CSharpAstResolver."); |
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resolveVisitor = new ResolveVisitor(initialResolverState, parsedFile, navigator); |
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lock (resolveVisitor) |
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resolveVisitor.Scan(rootNode); |
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} |
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/// <summary>
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/// Resolves the specified node.
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/// </summary>
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public ResolveResult Resolve(AstNode node) |
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{ |
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if (resolveVisitor == null) { |
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resolveVisitor = new ResolveVisitor(initialResolverState, parsedFile); |
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resolveVisitor.Scan(rootNode); |
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} |
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lock (resolveVisitor) |
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return resolveVisitor.GetResolveResult(node); |
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} |
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/// <summary>
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/// Gets the expected type for the specified node. This is the type being that a node is being converted to.
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/// </summary>
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public IType GetExpectedType(Expression expr) |
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{ |
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throw new NotImplementedException(); |
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} |
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/// <summary>
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/// Gets the conversion that is being applied to the specified expression.
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/// </summary>
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public Conversion GetConversion(Expression expr) |
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{ |
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throw new NotImplementedException(); |
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} |
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/// <summary>
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/// Gets whether the specified node is unresolvable.
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/// </summary>
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public static bool IsUnresolvableNode(AstNode node) |
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{ |
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return (node.NodeType == NodeType.Whitespace || node is ArraySpecifier || node is NamedArgumentExpression); |
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} |
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} |
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} |
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