golang issue44378 代码
文件路径：/test/fixedbugs/issue44378.go
/ compile
/ Copyright 2021 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.
/ This test case caused a panic in the compiler's DWARF gen code.
/ Note to future maintainers of this code:
/
/ ** Do NOT run gofmt when editing this file **
/
/ In order for the buggy behavior to be triggered in the compiler,
/ we need to have a the function of interest all on one gigantic line.
package a
type O interface{}
type IO int
type OS int
type A struct {
x int
}
/ original versions of the two function
func (p *A) UO(o O) {
p.r(o, o)
}
func (p *A) r(o1, o2 O) {
switch x := o1.(type) {
case *IO:
p.x = int(*x)
case *OS:
p.x = int(*x + 2)
}
}
/ see note above about the importance of all this code winding up on one line.
var myverylongname0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789 int ; func (p *A) UO2(o O) { p.r2(o, o); }; func (p *A) r2(o1, o2 O) { switch x := o1.(type) { case *IO: p.x = int(*x); case *OS: p.x = int(*x + 2); } }