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michaelnebelmichaelnebel
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C#: Add test for lambda arguments.
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‎csharp/ql/test/library-tests/arguments/PrintAst.expected‎

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@@ -353,3 +353,71 @@ arguments.cs:
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# 93| 0: [Parameter] b
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# 93| -1: [TypeMention] bool
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# 93| 4: [BlockStmt] {...}
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lambdas.cs:
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# 3| [Class] LambdaArgumentsTest
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# 5| 5: [Method] M1
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# 5| -1: [TypeMention] Void
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# 6| 4: [BlockStmt] {...}
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# 7| 0: [LocalVariableDeclStmt] ... ...;
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# 7| 0: [LocalVariableDeclAndInitExpr] Func<Int32,Int32> l1 = ...
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# 7| -1: [TypeMention] Func<int, int>
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# 7| 0: [LocalVariableAccess] access to local variable l1
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# 7| 1: [LambdaExpr] (...) => ...
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#-----| 2: (Parameters)
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# 7| 0: [Parameter] x
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# 7| -1: [TypeMention] int
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# 7| 4: [AddExpr] ... + ...
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# 7| 0: [ParameterAccess] access to parameter x
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# 7| 1: [IntLiteral] 1
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# 8| 1: [ExprStmt] ...;
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# 8| 0: [DelegateCall] delegate call
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# 8| -1: [LocalVariableAccess] access to local variable l1
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# 8| 0: [IntLiteral] 1
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# 10| 2: [LocalVariableDeclStmt] ... ...;
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# 10| 0: [LocalVariableDeclAndInitExpr] <>__AnonType0<> l2 = ...
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# 10| -1: [TypeMention] <>__AnonType0<>
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# 10| 0: [LocalVariableAccess] access to local variable l2
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# 10| 1: [LambdaExpr] (...) => ...
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#-----| 2: (Parameters)
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# 10| 0: [Parameter] x
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# 10| -1: [TypeMention] int
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# 10| 1: [Parameter] y
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# 10| -1: [TypeMention] int
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# 10| 1: [IntLiteral] 1
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# 10| 4: [AddExpr] ... + ...
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# 10| 0: [ParameterAccess] access to parameter x
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# 10| 1: [ParameterAccess] access to parameter y
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# 11| 3: [ExprStmt] ...;
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# 11| 0: [DelegateCall] delegate call
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# 11| -1: [LocalVariableAccess] access to local variable l2
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# 11| 0: [IntLiteral] 2
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# 11| 1: [IntLiteral] 3
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# 12| 4: [ExprStmt] ...;
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# 12| 0: [DelegateCall] delegate call
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# 12| -1: [LocalVariableAccess] access to local variable l2
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# 12| 0: [IntLiteral] 4
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# 13| 5: [ExprStmt] ...;
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# 13| 0: [DelegateCall] delegate call
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# 13| -1: [LocalVariableAccess] access to local variable l2
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# 13| 0: [IntLiteral] 5
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# 13| 1: [IntLiteral] 6
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# 15| 6: [LocalVariableDeclStmt] ... ...;
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# 15| 0: [LocalVariableDeclAndInitExpr] <>__AnonType0<> l3 = ...
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# 15| -1: [TypeMention] <>__AnonType0<>
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# 15| 0: [LocalVariableAccess] access to local variable l3
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# 15| 1: [LambdaExpr] (...) => ...
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#-----| 2: (Parameters)
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# 15| 0: [Parameter] x
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# 15| -1: [TypeMention] Int32[]
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# 15| 1: [TypeMention] int
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# 15| 4: [PropertyCall] access to property Length
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# 15| -1: [ParameterAccess] access to parameter x
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# 16| 7: [ExprStmt] ...;
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# 16| 0: [DelegateCall] delegate call
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# 16| -1: [LocalVariableAccess] access to local variable l3
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# 17| 8: [ExprStmt] ...;
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# 17| 0: [DelegateCall] delegate call
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# 17| -1: [LocalVariableAccess] access to local variable l3
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# 17| 0: [IntLiteral] 7
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# 17| 1: [IntLiteral] 8
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# 17| 2: [IntLiteral] 9

‎csharp/ql/test/library-tests/arguments/argumentType.expected‎

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| arguments.cs:84:23:84:43 | array creation of type Double[] | 0 |
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| arguments.cs:85:20:85:20 | 0 | 0 |
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| arguments.cs:85:23:85:43 | array creation of type Double[] | 0 |
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| lambdas.cs:8:12:8:12 | 1 | 0 |
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| lambdas.cs:11:12:11:12 | 2 | 0 |
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| lambdas.cs:11:15:11:15 | 3 | 0 |
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| lambdas.cs:12:12:12:12 | 4 | 0 |
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| lambdas.cs:13:12:13:12 | 5 | 0 |
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| lambdas.cs:13:15:13:15 | 6 | 0 |
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| lambdas.cs:17:12:17:12 | 7 | 0 |
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| lambdas.cs:17:15:17:15 | 8 | 0 |
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| lambdas.cs:17:18:17:18 | 9 | 0 |

‎csharp/ql/test/library-tests/arguments/lambdaArgument.expected‎

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| lambdas.cs:8:9:8:13 | delegate call | lambdas.cs:7:23:7:23 | x | lambdas.cs:8:12:8:12 | 1 |
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| lambdas.cs:11:9:11:16 | delegate call | lambdas.cs:10:23:10:23 | x | lambdas.cs:11:12:11:12 | 2 |
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| lambdas.cs:11:9:11:16 | delegate call | lambdas.cs:10:30:10:30 | y | lambdas.cs:11:15:11:15 | 3 |
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| lambdas.cs:12:9:12:13 | delegate call | lambdas.cs:10:23:10:23 | x | lambdas.cs:12:12:12:12 | 4 |
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| lambdas.cs:13:9:13:16 | delegate call | lambdas.cs:10:23:10:23 | x | lambdas.cs:13:12:13:12 | 5 |
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| lambdas.cs:13:9:13:16 | delegate call | lambdas.cs:10:30:10:30 | y | lambdas.cs:13:15:13:15 | 6 |
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| lambdas.cs:17:9:17:19 | delegate call | lambdas.cs:15:32:15:32 | x | lambdas.cs:17:12:17:12 | 7 |

‎csharp/ql/test/library-tests/arguments/lambdaArgument.ql‎

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import csharp
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from Call call, Parameter p, Expr arg
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where
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call.getARuntimeTarget() instanceof LambdaExpr and
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arg = call.getRuntimeArgumentForParameter(p)
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select call, p, arg

‎csharp/ql/test/library-tests/arguments/lambdas.cs‎

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using System;
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class LambdaArgumentsTest
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{
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void M1()
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{
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var l1 = (int x) => x + 1;
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l1(1);
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var l2 = (int x, int y = 1) => x + y;
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l2(2, 3);
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l2(4);
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l2(5, 6);
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var l3 = (params int[] x) => x.Length;
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l3();
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l3(7, 8, 9);
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}
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}

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