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Merge pull request github#17794 from owen-mc/go/ast-viewer-typeparamdecl
Go: Fix type param declarations in AST viewer
2 parents b0376d5 + bacf448 commit f3abe54

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9 files changed

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‎go/ql/lib/change-notes/2024-10-17-ast-viewer-type-param-decl.md

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---
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category: minorAnalysis
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---
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* The AST viewer now shows type parameter declarations in the correct place in the AST.

‎go/ql/lib/semmle/go/AST.qll

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@@ -55,6 +55,8 @@ class AstNode extends @node, Locatable {
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kind = "commentgroup" and result = this.(File).getCommentGroup(i)
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or
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kind = "comment" and result = this.(CommentGroup).getComment(i)
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or
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kind = "typeparamdecl" and result = this.(TypeParamDeclParent).getTypeParameterDecl(i)
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}
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/**

‎go/ql/test/library-tests/semmle/go/PrintAst/PrintAst.expected

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@@ -639,6 +639,11 @@ other.go:
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# 11| Type = int
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# 11| 0: [Ident, VariableName] myNested
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# 11| Type = func() int
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# 8| 3: [TypeParamDecl] type parameter declaration
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# 8| 0: [Ident, TypeName] int
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# 8| Type = int
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# 8| 1: [Ident, TypeName] U
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# 8| Type = U
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# 15| 5: [VarDecl] variable declaration
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# 15| 0: [ValueSpec] value declaration specifier
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# 15| 0: [Ident, VariableName] x
@@ -648,3 +653,32 @@ other.go:
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# 15| 2: [IntLit] 0
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# 15| Type = int
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# 15| Value = [IntLit] 0
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# 17| 6: [TypeDecl] type declaration
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# 17| 0: [TypeSpec] type declaration specifier
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# 17| 0: [Ident, TypeName] myType
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# 17| Type = myType
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# 17| 1: [ArrayTypeExpr] array type
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# 17| Type = []T
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# 17| 0: [Ident, TypeName] T
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# 17| Type = T
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# 17| 2: [TypeParamDecl] type parameter declaration
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# 17| 0: [TypeSetLiteralExpr] type set literal
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# 17| Type = ~string
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# 17| 0: [Ident, TypeName] string
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# 17| Type = string
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# 17| 1: [Ident, TypeName] T
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# 17| Type = T
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# 19| 7: [MethodDecl] function declaration
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# 19| 0: [FunctionName, Ident] f
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# 19| Type = func()
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# 19| 1: [FuncTypeExpr] function type
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# 19| 2: [ReceiverDecl] receiver declaration
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# 19| 0: [GenericTypeInstantiationExpr] generic type instantiation expression
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# 19| Type = myType
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# 19| 0: [Ident, TypeName] myType
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# 19| Type = myType
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# 19| 1: [Ident, TypeName] U
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# 19| Type = U
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# 19| 1: [Ident, VariableName] m
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# 19| Type = myType
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# 19| 3: [BlockStmt] block statement

‎go/ql/test/library-tests/semmle/go/PrintAst/PrintAstExcludeComments.expected

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@@ -619,6 +619,11 @@ other.go:
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# 11| Type = int
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# 11| 0: [Ident, VariableName] myNested
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# 11| Type = func() int
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# 8| 3: [TypeParamDecl] type parameter declaration
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# 8| 0: [Ident, TypeName] int
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# 8| Type = int
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# 8| 1: [Ident, TypeName] U
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# 8| Type = U
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# 15| 5: [VarDecl] variable declaration
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# 15| 0: [ValueSpec] value declaration specifier
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# 15| 0: [Ident, VariableName] x
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# 15| 2: [IntLit] 0
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# 15| Type = int
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# 15| Value = [IntLit] 0
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# 17| 6: [TypeDecl] type declaration
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# 17| 0: [TypeSpec] type declaration specifier
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# 17| 0: [Ident, TypeName] myType
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# 17| Type = myType
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# 17| 1: [ArrayTypeExpr] array type
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# 17| Type = []T
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# 17| 0: [Ident, TypeName] T
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# 17| Type = T
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# 17| 2: [TypeParamDecl] type parameter declaration
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# 17| 0: [TypeSetLiteralExpr] type set literal
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# 17| Type = ~string
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# 17| 0: [Ident, TypeName] string
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# 17| Type = string
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# 17| 1: [Ident, TypeName] T
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# 17| Type = T
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# 19| 7: [MethodDecl] function declaration
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# 19| 0: [FunctionName, Ident] f
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# 19| Type = func()
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# 19| 1: [FuncTypeExpr] function type
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# 19| 2: [ReceiverDecl] receiver declaration
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# 19| 0: [GenericTypeInstantiationExpr] generic type instantiation expression
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# 19| Type = myType
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# 19| 0: [Ident, TypeName] myType
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# 19| Type = myType
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# 19| 1: [Ident, TypeName] U
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# 19| Type = U
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# 19| 1: [Ident, VariableName] m
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# 19| Type = myType
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# 19| 3: [BlockStmt] block statement

‎go/ql/test/library-tests/semmle/go/PrintAst/PrintAstNestedFunction.expected

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@@ -56,6 +56,11 @@ other.go:
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# 11| Type = int
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# 11| 0: [Ident, VariableName] myNested
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# 11| Type = func() int
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# 8| 3: [TypeParamDecl] type parameter declaration
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# 8| 0: [Ident, TypeName] int
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# 8| Type = int
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# 8| 1: [Ident, TypeName] U
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# 8| Type = U
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# 15| 2: [VarDecl] variable declaration
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# 15| 0: [ValueSpec] value declaration specifier
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# 15| 0: [Ident, VariableName] x
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# 15| 2: [IntLit] 0
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# 15| Type = int
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# 15| Value = [IntLit] 0
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# 17| 3: [TypeDecl] type declaration
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# 17| 0: [TypeSpec] type declaration specifier
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# 17| 0: [Ident, TypeName] myType
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# 17| Type = myType
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# 17| 1: [ArrayTypeExpr] array type
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# 17| Type = []T
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# 17| 0: [Ident, TypeName] T
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# 17| Type = T
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# 17| 2: [TypeParamDecl] type parameter declaration
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# 17| 0: [TypeSetLiteralExpr] type set literal
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# 17| Type = ~string
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# 17| 0: [Ident, TypeName] string
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# 17| Type = string
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# 17| 1: [Ident, TypeName] T
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# 17| Type = T

‎go/ql/test/library-tests/semmle/go/PrintAst/PrintAstRestrictFile.expected

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# 11| Type = int
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# 11| 0: [Ident, VariableName] myNested
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# 11| Type = func() int
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# 8| 3: [TypeParamDecl] type parameter declaration
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# 8| 0: [Ident, TypeName] int
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# 8| Type = int
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# 8| 1: [Ident, TypeName] U
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# 8| Type = U
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# 15| 5: [VarDecl] variable declaration
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# 15| 0: [ValueSpec] value declaration specifier
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# 15| 0: [Ident, VariableName] x
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# 15| 2: [IntLit] 0
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# 15| Type = int
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# 15| Value = [IntLit] 0
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# 17| 6: [TypeDecl] type declaration
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# 17| 0: [TypeSpec] type declaration specifier
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# 17| 0: [Ident, TypeName] myType
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# 17| Type = myType
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# 17| 1: [ArrayTypeExpr] array type
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# 17| Type = []T
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# 17| 0: [Ident, TypeName] T
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# 17| Type = T
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# 17| 2: [TypeParamDecl] type parameter declaration
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# 17| 0: [TypeSetLiteralExpr] type set literal
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# 17| Type = ~string
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# 17| 0: [Ident, TypeName] string
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# 17| Type = string
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# 17| 1: [Ident, TypeName] T
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# 17| Type = T
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# 19| 7: [MethodDecl] function declaration
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# 19| 0: [FunctionName, Ident] f
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# 19| Type = func()
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# 19| 1: [FuncTypeExpr] function type
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# 19| 2: [ReceiverDecl] receiver declaration
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# 19| 0: [GenericTypeInstantiationExpr] generic type instantiation expression
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# 19| Type = myType
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# 19| 0: [Ident, TypeName] myType
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# 19| Type = myType
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# 19| 1: [Ident, TypeName] U
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# 19| Type = U
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# 19| 1: [Ident, VariableName] m
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# 19| Type = myType
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# 19| 3: [BlockStmt] block statement

‎go/ql/test/library-tests/semmle/go/PrintAst/PrintAstRestrictFunction.expected

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other.go:
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# 8| [TypeParamDecl] type parameter declaration
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# 8| 0: [Ident, TypeName] int
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# 8| Type = int
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# 8| 1: [Ident, TypeName] U
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# 8| Type = U
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go.mod:
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# 0| [GoModFile] go.mod
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# 1| 0: [GoModModuleLine] go.mod module line
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# 15| 2: [IntLit] 0
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# 15| Type = int
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# 15| Value = [IntLit] 0
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# 17| 3: [TypeDecl] type declaration
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# 17| 0: [TypeSpec] type declaration specifier
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# 17| 0: [Ident, TypeName] myType
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# 17| Type = myType
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# 17| 1: [ArrayTypeExpr] array type
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# 17| Type = []T
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# 17| 0: [Ident, TypeName] T
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# 17| Type = T
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# 17| 2: [TypeParamDecl] type parameter declaration
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# 17| 0: [TypeSetLiteralExpr] type set literal
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# 17| Type = ~string
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# 17| 0: [Ident, TypeName] string
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# 17| Type = string
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# 17| 1: [Ident, TypeName] T
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# 17| Type = T

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

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module codeql-go-tests/printast
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3-
go 1.14
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go 1.18

‎go/ql/test/library-tests/semmle/go/PrintAst/other.go

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func f() {}
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func g() {}
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func hasNested() {
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func hasNested[U int]() {
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myNested := func() int { return 1 }
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myNested()
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}
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var x int = 0
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type myType[T ~string] []T
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func (m myType[U]) f() {}

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