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// Copyright (c) 2010-2013 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.IO;
using ICSharpCode.NRefactory.Editor;
using ICSharpCode.NRefactory.TypeSystem;
using NUnit.Framework;
namespace ICSharpCode.NRefactory.CSharp.Parser
{
/// <summary>
/// Test fixture that parses NRefactory itself,
/// ensures that there are no parser crashes while doing so,
/// and that the returned positions are consistent.
/// </summary>
[TestFixture]
public class ParseSelfTests
{
string[] fileNames;
[TestFixtureSetUp]
public void SetUp()
{
string path = Path.GetFullPath (Path.Combine ("..", ".."));
if (!File.Exists(Path.Combine(path, "NRefactory.sln")))
throw new InvalidOperationException("Test cannot find the NRefactory source code in " + path);
fileNames = Directory.GetFiles(path, "*.cs", SearchOption.AllDirectories);
}
[Test]
public void GenerateTypeSystem()
{
IProjectContent pc = new CSharpProjectContent();
CSharpParser parser = new CSharpParser();
parser.GenerateTypeSystemMode = true;
foreach (string fileName in fileNames) {
SyntaxTree syntaxTree;
using (var fs = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read, 4096, FileOptions.SequentialScan)) {
syntaxTree = parser.Parse(fs, fileName);
}
var unresolvedFile = syntaxTree.ToTypeSystem();
foreach (var td in unresolvedFile.GetAllTypeDefinitions()) {
Assert.AreSame(unresolvedFile, td.UnresolvedFile);
foreach (var member in td.Members) {
Assert.AreSame(unresolvedFile, member.UnresolvedFile);
Assert.AreSame(td, member.DeclaringTypeDefinition);
}
}
pc = pc.AddOrUpdateFiles(unresolvedFile);
}
}
#region ParseAndCheckPositions
string currentFileName;
ReadOnlyDocument currentDocument;
[Test, Ignore("Positions still are incorrect in several cases")]
public void ParseAndCheckPositions()
{
CSharpParser parser = new CSharpParser();
foreach (string fileName in fileNames) {
this.currentDocument = new ReadOnlyDocument(File.ReadAllText(fileName));
SyntaxTree syntaxTree = parser.Parse(currentDocument, fileName);
if (parser.HasErrors)
continue;
this.currentFileName = fileName;
CheckPositionConsistency(syntaxTree);
CheckMissingTokens(syntaxTree);
}
}
void PrintNode (AstNode node)
{
Console.WriteLine ("Parent:" + node.GetType ());
Console.WriteLine ("Children:");
foreach (var c in node.Children)
Console.WriteLine (c.GetType () +" at:"+ c.StartLocation +"-"+ c.EndLocation + " Role: "+ c.Role);
Console.WriteLine ("----");
}
void CheckPositionConsistency (AstNode node)
{
string comment = "(" + node.GetType ().Name + " at " + node.StartLocation + " in " + currentFileName + ")";
var pred = node.StartLocation <= node.EndLocation;
if (!pred)
PrintNode (node);
Assert.IsTrue(pred, "StartLocation must be before EndLocation " + comment);
var prevNodeEnd = node.StartLocation;
var prevNode = node;
for (AstNode child = node.FirstChild; child != null; child = child.NextSibling) {
bool assertion = child.StartLocation >= prevNodeEnd;
if (!assertion) {
PrintNode (prevNode);
PrintNode (node);
}
Assert.IsTrue(assertion, currentFileName + ": Child " + child.GetType () +" (" + child.StartLocation + ")" +" must start after previous sibling " + prevNode.GetType () + "(" + prevNode.StartLocation + ")");
CheckPositionConsistency(child);
prevNodeEnd = child.EndLocation;
prevNode = child;
}
Assert.IsTrue(prevNodeEnd <= node.EndLocation, "Last child must end before parent node ends " + comment);
}
void CheckMissingTokens(AstNode node)
{
if (node is CSharpTokenNode) {
Assert.IsNull(node.FirstChild, "Token nodes should not have children");
} else {
var prevNodeEnd = node.StartLocation;
var prevNode = node;
for (AstNode child = node.FirstChild; child != null; child = child.NextSibling) {
CheckWhitespace(prevNode, prevNodeEnd, child, child.StartLocation);
CheckMissingTokens(child);
prevNode = child;
prevNodeEnd = child.EndLocation;
}
CheckWhitespace(prevNode, prevNodeEnd, node, node.EndLocation);
}
}
void CheckWhitespace(AstNode startNode, TextLocation whitespaceStart, AstNode endNode, TextLocation whitespaceEnd)
{
if (whitespaceStart == whitespaceEnd || startNode == endNode)
return;
int start = currentDocument.GetOffset(whitespaceStart.Line, whitespaceStart.Column);
int end = currentDocument.GetOffset(whitespaceEnd.Line, whitespaceEnd.Column);
string text = currentDocument.GetText(start, end - start);
bool assertion = string.IsNullOrWhiteSpace(text);
if (!assertion) {
if (startNode.Parent != endNode.Parent)
PrintNode (startNode.Parent);
PrintNode (endNode.Parent);
}
Assert.IsTrue(assertion, "Expected whitespace between " + startNode.GetType () +":" + whitespaceStart + " and " + endNode.GetType () + ":" + whitespaceEnd
+ ", but got '" + text + "' (in " + currentFileName + " parent:" + startNode.Parent.GetType () +")");
}
#endregion
}
}
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