Go: Add generic method test

Author: jketema

go/ql/test/library-tests/semmle/go/Function/GenericFunctionInstantiationExpr.expected

@@ -6,3 +6,4 @@
 | genericFunctions.go:45:6:45:50 | generic function instantiation expression | genericFunctions.go:45:6:45:33 | GenericFunctionTwoTypeParams | 1 | genericFunctions.go:45:43:45:49 | float64 |
 | genericFunctions.go:141:6:141:41 | generic function instantiation expression | genericFunctions.go:141:6:141:33 | GenericFunctionInAnotherFile | 0 | genericFunctions.go:141:35:141:40 | string |
 | genericFunctions.go:146:6:146:55 | generic function instantiation expression | genericFunctions.go:146:6:146:47 | selection of GenericFunctionInAnotherPackage | 0 | genericFunctions.go:146:49:146:54 | string |
+| genericMethods.go:13:2:13:23 | generic function instantiation expression | genericMethods.go:13:2:13:18 | selection of GenericMethod1 | 0 | genericMethods.go:13:20:13:22 | int |

go/ql/test/library-tests/semmle/go/Function/TypeParamType.expected

@@ -19,6 +19,9 @@ numberOfTypeParameters
 | genericFunctions.go:150:6:150:36 | multipleAnonymousTypeParamsFunc | 3 |
 | genericFunctions.go:152:6:152:36 | multipleAnonymousTypeParamsType | 3 |
 | genericFunctions.go:154:51:154:51 | f | 3 |
+| genericMethods.go:5:33:5:46 | GenericMethod1 | 1 |
+| genericMethods.go:7:6:7:28 | StructForGenericMethod2 | 1 |
+| genericMethods.go:9:36:9:49 | GenericMethod2 | 2 |
 #select
 | codeql-go-tests/function.EdgeConstraint | 0 | Node | interface { } |
 | codeql-go-tests/function.Element | 0 | S | interface { } |
@@ -44,6 +47,10 @@ numberOfTypeParameters
 | codeql-go-tests/function.New | 0 | Node | NodeConstraint |
 | codeql-go-tests/function.New | 1 | Edge | EdgeConstraint |
 | codeql-go-tests/function.NodeConstraint | 0 | Edge | interface { } |
+| codeql-go-tests/function.StructForGenericMethod1.GenericMethod1 | 0 | P | interface { } |
+| codeql-go-tests/function.StructForGenericMethod2 | 0 | P | interface { } |
+| codeql-go-tests/function.StructForGenericMethod2.GenericMethod2 | 0 | P | interface { } |
+| codeql-go-tests/function.StructForGenericMethod2.GenericMethod2 | 0 | Q | interface { } |
 | codeql-go-tests/function.multipleAnonymousTypeParamsFunc | 0 | _ | interface { } |
 | codeql-go-tests/function.multipleAnonymousTypeParamsFunc | 1 | _ | interface { string } |
 | codeql-go-tests/function.multipleAnonymousTypeParamsFunc | 2 | _ | interface { } |

go/ql/test/library-tests/semmle/go/Function/genericMethods.go

@@ -0,0 +1,19 @@
+package main
+
+type StructForGenericMethod1 struct{}
+
+func (*StructForGenericMethod1) GenericMethod1[P any](x P) {}
+
+type StructForGenericMethod2[P any] struct{}
+
+func (*StructForGenericMethod2[P]) GenericMethod2[Q any](x Q) {}
+
+func generic_methods(s1 StructForGenericMethod1, s2 StructForGenericMethod2[int]) {
+	// Call the generic method specifying the type
+	s1.GenericMethod1[int](1)
+	//s2.GenericMethod2[string]("hello")
+
+	// Call the generic method without specifying the type
+	s1.GenericMethod1("hello")
+	//s2.GenericMethod2(42)
+}

go/ql/test/library-tests/semmle/go/Function/getParameter.expected

@@ -11,6 +11,10 @@
 | genericFunctions.go:138:29:138:40 | ShortestPath | 1 | genericFunctions.go:138:48:138:49 | to |
 | genericFunctions.go:138:29:138:40 | ShortestPath | -1 | genericFunctions.go:138:7:138:7 | g |
 | genericFunctions.go:154:51:154:51 | f | -1 | genericFunctions.go:154:7:154:7 | x |
+| genericMethods.go:5:33:5:46 | GenericMethod1 | 0 | genericMethods.go:5:55:5:55 | x |
+| genericMethods.go:9:36:9:49 | GenericMethod2 | 0 | genericMethods.go:9:58:9:58 | x |
+| genericMethods.go:11:6:11:20 | generic_methods | 0 | genericMethods.go:11:22:11:23 | s1 |
+| genericMethods.go:11:6:11:20 | generic_methods | 1 | genericMethods.go:11:50:11:51 | s2 |
 | main.go:7:6:7:7 | f1 | 0 | main.go:7:9:7:9 | x |
 | main.go:9:12:9:13 | f2 | 0 | main.go:9:15:9:15 | x |
 | main.go:9:12:9:13 | f2 | 1 | main.go:9:18:9:18 | y |

go/ql/test/library-tests/semmle/go/Function/getTypeParameter.expected

@@ -19,3 +19,6 @@
 | genericFunctions.go:152:6:152:69 | type declaration specifier | TypeSpec | 0 | genericFunctions.go:152:38:152:42 | type parameter declaration | 0 | genericFunctions.go:152:38:152:38 | _ | genericFunctions.go:152:40:152:42 | any | interface { } |
 | genericFunctions.go:152:6:152:69 | type declaration specifier | TypeSpec | 1 | genericFunctions.go:152:45:152:52 | type parameter declaration | 0 | genericFunctions.go:152:45:152:45 | _ | genericFunctions.go:152:47:152:52 | string | interface { string } |
 | genericFunctions.go:152:6:152:69 | type declaration specifier | TypeSpec | 2 | genericFunctions.go:152:55:152:59 | type parameter declaration | 0 | genericFunctions.go:152:55:152:55 | _ | genericFunctions.go:152:57:152:59 | any | interface { } |
+| genericMethods.go:5:1:5:61 | function declaration | MethodDecl | 0 | genericMethods.go:5:48:5:52 | type parameter declaration | 0 | genericMethods.go:5:48:5:48 | P | genericMethods.go:5:50:5:52 | any | interface { } |
+| genericMethods.go:7:6:7:45 | type declaration specifier | TypeSpec | 0 | genericMethods.go:7:30:7:34 | type parameter declaration | 0 | genericMethods.go:7:30:7:30 | P | genericMethods.go:7:32:7:34 | any | interface { } |
+| genericMethods.go:9:1:9:65 | function declaration | MethodDecl | 0 | genericMethods.go:9:51:9:55 | type parameter declaration | 0 | genericMethods.go:9:51:9:51 | Q | genericMethods.go:9:53:9:55 | any | interface { } |

go/ql/test/library-tests/semmle/go/Function/go.mod

@@ -1,6 +1,8 @@
 module codeql-go-tests/function
 
-go 1.18
+go 1.27
+
+toolchain go1.27rc1
 
 require github.com/anotherpkg v0.0.0-20200203000000-0000000000000