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C#: Add test for extension method calls
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‎csharp/ql/test/library-tests/extension-method-call/ExtensionMethodCalls.expected

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methodCallTargets
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| methods.cs:19:13:19:22 | call to method Ext0 | methods.cs:8:28:8:34 | Ext0 | Ext0<int>(string, int) |
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| methods.cs:20:13:20:27 | call to method Ext0 | methods.cs:8:28:8:34 | Ext0 | Ext0<int>(string, int) |
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| methods.cs:21:13:21:30 | call to method Ext0 | methods.cs:8:28:8:34 | Ext0 | Ext0<double>(double) |
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| methods.cs:22:13:22:33 | call to method Ext0 | methods.cs:8:28:8:34 | Ext0 | Ext0<object>(object) |
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| methods.cs:23:13:23:34 | call to method Ext0 | methods.cs:8:28:8:34 | Ext0 | Ext0<int>(string, int) |
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| methods.cs:24:13:24:39 | call to method Ext0 | methods.cs:8:28:8:34 | Ext0 | Ext0<int>(string, int) |
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| methods.cs:25:13:25:42 | call to method Ext0 | methods.cs:8:28:8:34 | Ext0 | Ext0<double>(string, double) |
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| methods.cs:26:13:26:45 | call to method Ext0 | methods.cs:8:28:8:34 | Ext0 | Ext0<object>(string, object) |
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| methods.cs:28:13:28:22 | call to method Ext1 | methods.cs:10:28:10:31 | Ext1 | Ext1(string, int) |
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| methods.cs:29:13:29:34 | call to method Ext1 | methods.cs:10:28:10:31 | Ext1 | Ext1(string, int) |
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| methods.cs:31:13:31:21 | call to method Ext2 | methods.cs:12:28:12:34 | Ext2 | Ext2<int>(int, int) |
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| methods.cs:32:13:32:26 | call to method Ext2 | methods.cs:12:28:12:34 | Ext2 | Ext2<int>(int, int) |
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| methods.cs:33:13:33:22 | call to method Ext2 | methods.cs:12:28:12:34 | Ext2 | Ext2<string>(string, int) |
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| methods.cs:34:13:34:30 | call to method Ext2 | methods.cs:12:28:12:34 | Ext2 | Ext2<string>(string, int) |
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| methods.cs:35:13:35:30 | call to method Ext2 | methods.cs:12:28:12:34 | Ext2 | Ext2<object>(object, int) |
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| methods.cs:36:13:36:33 | call to method Ext2 | methods.cs:12:28:12:34 | Ext2 | Ext2<int>(int, int) |
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| methods.cs:37:13:37:38 | call to method Ext2 | methods.cs:12:28:12:34 | Ext2 | Ext2<int>(int, int) |
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| methods.cs:38:13:38:34 | call to method Ext2 | methods.cs:12:28:12:34 | Ext2 | Ext2<string>(string, int) |
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| methods.cs:39:13:39:42 | call to method Ext2 | methods.cs:12:28:12:34 | Ext2 | Ext2<string>(string, int) |
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| methods.cs:40:13:40:42 | call to method Ext2 | methods.cs:12:28:12:34 | Ext2 | Ext2<object>(object, int) |
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genericMethodCallTargets
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| methods.cs:19:13:19:22 | call to method Ext0 | methods.cs:8:28:8:34 | Ext0 | Ext0<int>(string, int) | methods.cs:8:28:8:34 | Ext0 | Ext0<T>(string, T) |
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| methods.cs:20:13:20:27 | call to method Ext0 | methods.cs:8:28:8:34 | Ext0 | Ext0<int>(string, int) | methods.cs:8:28:8:34 | Ext0 | Ext0<T>(string, T) |
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| methods.cs:21:13:21:30 | call to method Ext0 | methods.cs:8:28:8:34 | Ext0 | Ext0<double>(double) | methods.cs:8:28:8:34 | Ext0 | Ext0<T>(string, T) |
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| methods.cs:22:13:22:33 | call to method Ext0 | methods.cs:8:28:8:34 | Ext0 | Ext0<object>(object) | methods.cs:8:28:8:34 | Ext0 | Ext0<T>(string, T) |
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| methods.cs:23:13:23:34 | call to method Ext0 | methods.cs:8:28:8:34 | Ext0 | Ext0<int>(string, int) | methods.cs:8:28:8:34 | Ext0 | Ext0<T>(string, T) |
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| methods.cs:24:13:24:39 | call to method Ext0 | methods.cs:8:28:8:34 | Ext0 | Ext0<int>(string, int) | methods.cs:8:28:8:34 | Ext0 | Ext0<T>(string, T) |
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| methods.cs:25:13:25:42 | call to method Ext0 | methods.cs:8:28:8:34 | Ext0 | Ext0<double>(string, double) | methods.cs:8:28:8:34 | Ext0 | Ext0<T>(string, T) |
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| methods.cs:26:13:26:45 | call to method Ext0 | methods.cs:8:28:8:34 | Ext0 | Ext0<object>(string, object) | methods.cs:8:28:8:34 | Ext0 | Ext0<T>(string, T) |
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| methods.cs:31:13:31:21 | call to method Ext2 | methods.cs:12:28:12:34 | Ext2 | Ext2<int>(int, int) | methods.cs:12:28:12:34 | Ext2 | Ext2<T>(T, int) |
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| methods.cs:32:13:32:26 | call to method Ext2 | methods.cs:12:28:12:34 | Ext2 | Ext2<int>(int, int) | methods.cs:12:28:12:34 | Ext2 | Ext2<T>(T, int) |
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| methods.cs:33:13:33:22 | call to method Ext2 | methods.cs:12:28:12:34 | Ext2 | Ext2<string>(string, int) | methods.cs:12:28:12:34 | Ext2 | Ext2<T>(T, int) |
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| methods.cs:34:13:34:30 | call to method Ext2 | methods.cs:12:28:12:34 | Ext2 | Ext2<string>(string, int) | methods.cs:12:28:12:34 | Ext2 | Ext2<T>(T, int) |
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| methods.cs:35:13:35:30 | call to method Ext2 | methods.cs:12:28:12:34 | Ext2 | Ext2<object>(object, int) | methods.cs:12:28:12:34 | Ext2 | Ext2<T>(T, int) |
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| methods.cs:36:13:36:33 | call to method Ext2 | methods.cs:12:28:12:34 | Ext2 | Ext2<int>(int, int) | methods.cs:12:28:12:34 | Ext2 | Ext2<T>(T, int) |
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| methods.cs:37:13:37:38 | call to method Ext2 | methods.cs:12:28:12:34 | Ext2 | Ext2<int>(int, int) | methods.cs:12:28:12:34 | Ext2 | Ext2<T>(T, int) |
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| methods.cs:38:13:38:34 | call to method Ext2 | methods.cs:12:28:12:34 | Ext2 | Ext2<string>(string, int) | methods.cs:12:28:12:34 | Ext2 | Ext2<T>(T, int) |
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| methods.cs:39:13:39:42 | call to method Ext2 | methods.cs:12:28:12:34 | Ext2 | Ext2<string>(string, int) | methods.cs:12:28:12:34 | Ext2 | Ext2<T>(T, int) |
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| methods.cs:40:13:40:42 | call to method Ext2 | methods.cs:12:28:12:34 | Ext2 | Ext2<object>(object, int) | methods.cs:12:28:12:34 | Ext2 | Ext2<T>(T, int) |

‎csharp/ql/test/library-tests/extension-method-call/ExtensionMethodCalls.ql

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import csharp
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query predicate methodCallTargets(MethodCall mc, Method m, string sig) {
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m = mc.getTarget() and sig = m.toStringWithTypes()
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}
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query predicate genericMethodCallTargets(
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MethodCall mc, ConstructedMethod cm, string sig1, UnboundGenericMethod ugm, string sig2
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) {
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cm = mc.getTarget() and
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sig1 = cm.toStringWithTypes() and
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ugm = cm.getUnboundGeneric() and
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sig2 = ugm.toStringWithTypes()
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}

‎csharp/ql/test/library-tests/extension-method-call/methods.cs

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using System;
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namespace Test
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{
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public static class Extensions
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{
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public static void Ext0<T>(this string self, T arg) { }
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public static void Ext1(this string self, int arg) { }
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public static void Ext2<T>(this T self, int arg) { }
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}
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public class Program
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{
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public static void M()
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{
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"".Ext0(1);
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"".Ext0<int>(1);
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"".Ext0<double>(1);
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"".Ext0<object>(null);
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Extensions.Ext0("", 1);
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Extensions.Ext0<int>("", 1);
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Extensions.Ext0<double>("", 1);
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Extensions.Ext0<object>("", null);
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"".Ext1(1);
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Extensions.Ext1("", 1);
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1.Ext2(1);
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1.Ext2<int>(1);
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"".Ext2(1);
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"".Ext2<string>(1);
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"".Ext2<object>(1);
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Extensions.Ext2(1, 1);
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Extensions.Ext2<int>(1, 1);
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Extensions.Ext2("", 1);
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Extensions.Ext2<string>("", 1);
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Extensions.Ext2<object>("", 1);
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}
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}
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}

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