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f19e49e7b1
The builtins.go test is derived from cmd/compile/internal/types2/testdata/check/builtins.go2, after removing the error cases. Added a few extra tests for len/cap/append. Fixed one bug, which is that DELETE operations can't be transformed if their argument is a typeparam. Also, the tranform of LEN/CAP calls does not need to be delayed. Removed out-date references to the old typechecker in the comments. Change-Id: If7a21506a7ff63ff7c8e87ccd614ef4ff3a0d3c8 Reviewed-on: https://go-review.googlesource.com/c/go/+/336010 Run-TryBot: Dan Scales <danscales@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org> Trust: Dan Scales <danscales@google.com>
115 lines
1.7 KiB
Go
115 lines
1.7 KiB
Go
// compile -G=3
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// Copyright 2020 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// This file tests built-in calls on generic types.
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// derived and expanded from cmd/compile/internal/types2/testdata/check/builtins.go2
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package builtins
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// close
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type C0 interface{ int }
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type C1 interface{ chan int }
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type C2 interface{ chan int | <-chan int }
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type C3 interface{ chan int | chan float32 }
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type C4 interface{ chan int | chan<- int }
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type C5[T any] interface{ ~chan T | chan<- T }
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func _[T C1](ch T) {
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close(ch)
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}
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func _[T C3](ch T) {
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close(ch)
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}
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func _[T C4](ch T) {
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close(ch)
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}
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func _[T C5[X], X any](ch T) {
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close(ch)
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}
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// delete
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type M0 interface{ int }
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type M1 interface{ map[string]int }
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type M2 interface { map[string]int | map[string]float64 }
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type M3 interface{ map[string]int | map[rune]int }
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type M4[K comparable, V any] interface{ map[K]V | map[rune]V }
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func _[T M1](m T) {
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delete(m, "foo")
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}
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func _[T M2](m T) {
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delete(m, "foo")
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}
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func _[T M4[rune, V], V any](m T) {
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delete(m, 'k')
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}
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// make
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type Bmc interface {
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~map[rune]string | ~chan int
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}
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type Bms interface {
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~map[string]int | ~[]int
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}
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type Bcs interface {
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~chan bool | ~[]float64
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}
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type Bss interface {
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~[]int | ~[]string
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}
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func _[T Bmc]() {
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_ = make(T)
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_ = make(T, 10)
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}
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func _[T Bms]() {
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_ = make(T, 10)
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}
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func _[T Bcs]() {
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_ = make(T, 10)
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}
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func _[T Bss]() {
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_ = make(T, 10)
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_ = make(T, 10, 20)
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}
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// len/cap
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type Slice[T any] interface {
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type []T
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}
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func _[T any, S Slice[T]]() {
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x := make(S, 5, 10)
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_ = len(x)
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_ = cap(x)
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}
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// append
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func _[T any, S Slice[T]]() {
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x := make(S, 5)
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y := make(S, 2)
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var z T
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_ = append(x, y...)
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_ = append(x, z)
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}
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