1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
// 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.Linq;
using ICSharpCode.NRefactory.CSharp;
using ICSharpCode.NRefactory.PatternMatching;
namespace ICSharpCode.NRefactory.ConsistencyCheck
{
/// <summary>
/// Validates pattern matching:
/// Every compilation must match its clone;
/// and mutations to the cloned compilation must prevent the match.
/// </summary>
/// <remarks>
/// This test is SLOW! (due to O(n^2) algorithm).
/// Expect it to take a whole hour!
/// </remarks>
public class PatternMatchingTest
{
public static void RunTest(CSharpFile file)
{
AstNode copy = file.SyntaxTree.Clone();
if (!copy.IsMatch(file.SyntaxTree))
throw new InvalidOperationException("Clone must match the compilation itself; in " + file.FileName);
// Mutate identifiers:
foreach (var id in copy.Descendants.OfType<Identifier>()) {
if (id.Parent is ConstructorDeclaration || id.Parent is DestructorDeclaration)
continue; // identifier in ctor/dtor isn't relevant for matches
string oldName = id.Name;
id.Name = "mutatedName";
if (copy.IsMatch(file.SyntaxTree))
throw new InvalidOperationException("Mutation in " + id.StartLocation + " did not prevent the match; in " + file.FileName);
id.Name = oldName;
//if (!copy.IsMatch(file.SyntaxTree))
// throw new InvalidOperationException("Clone must match the compilation itself after resetting the mutation");
}
// Mutate primitive values:
foreach (var pe in copy.Descendants.OfType<PrimitiveExpression>()) {
if (pe.Ancestors.Any(a => a is PreProcessorDirective))
continue;
object oldVal = pe.Value;
pe.Value = "Mutated " + "Value";
if (copy.IsMatch(file.SyntaxTree))
throw new InvalidOperationException("Mutation in " + pe.StartLocation + " did not prevent the match; in " + file.FileName);
pe.Value = oldVal;
}
Console.Write('.');
}
}
}
|
