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go/printer: do not panic on *ast.ParenExpr

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This commit is contained in:
Mateusz Poliwczak 2024-09-02 14:31:32 +02:00
parent fc9f02c7ae
commit 1798e2c65b
3 changed files with 5 additions and 3 deletions
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4
src/go/printer/nodes.go
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@ -411,9 +411,7 @@ func combinesWithName(x ast.Expr) bool {
case *ast.BinaryExpr:
return combinesWithName(x.X) && !isTypeElem(x.Y)
case *ast.ParenExpr:
// name(x) combines but we are making sure at
// the call site that x is never parenthesized.
panic("unexpected parenthesized expression")
return combinesWithName(x.X)
}
return false
}

2
src/go/printer/testdata/generics.golden vendored
View File

@ -45,6 +45,8 @@ type _[P T | T] struct{}
type _[P T | T | T | T] struct{}
type _[P *T, _ any] struct{}
type _[P *T,] struct{}
type _[P *T,] struct{}
type _[P ~int] struct{}
type _[P *T, _ any] struct{}
type _[P T] struct{}
type _[P T, _ any] struct{}

2
src/go/printer/testdata/generics.input vendored
View File

@ -42,6 +42,8 @@ type _[P T | T] struct{}
type _[P T | T | T | T] struct{}
type _[P *T, _ any] struct{}
type _[P (*T),] struct{}
type _[P ((*T)),] struct{}
type _[P ((~int)),] struct{}
type _[P (*T), _ any] struct{}
type _[P (T),] struct{}
type _[P (T), _ any] struct{}