go directive 源码
golang directive 代码
文件路径：/test/directive.go
// errorcheck
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Verify that misplaced directives are diagnosed.
//go:noinline // ERROR "misplaced compiler directive"
//go:noinline // ERROR "misplaced compiler directive"
package main
//go:nosplit
func f1() {}
//go:nosplit
//go:noinline
func f2() {}
//go:noinline // ERROR "misplaced compiler directive"
//go:noinline // ERROR "misplaced compiler directive"
var x int
//go:noinline // ERROR "misplaced compiler directive"
const c = 1
//go:noinline // ERROR "misplaced compiler directive"
type T int
// ok
//go:notinheap
type T1 int
type (
//go:notinheap
//go:noinline // ERROR "misplaced compiler directive"
T2 int
T2b int
//go:notinheap
T2c int
//go:noinline // ERROR "misplaced compiler directive"
T3 int
)
//go:noinline
func f() {
x := 1
{
_ = x
}
//go:noinline // ERROR "misplaced compiler directive"
var y int
_ = y
//go:noinline // ERROR "misplaced compiler directive"
const c = 1
_ = func() {}
//go:noinline // ERROR "misplaced compiler directive"
// ok:
//go:notinheap
type T int
}
// someday there might be a directive that can apply to type aliases, but go:notinheap doesn't.
//go:notinheap // ERROR "misplaced compiler directive"
type T6 = int
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