llgo.string (llgo/ssa.MakeString) fix

This commit is contained in:
xushiwei
2024-06-20 00:30:36 +08:00
parent b4e298230d
commit 4a1712f4cd
3 changed files with 11 additions and 4 deletions

View File

@@ -14,6 +14,8 @@ func f() {
}
func main() {
println(c.GoString(c.Str("sync.Once demo\n"), 9))
println(c.GoString(c.Str("sync.Once demo\n")))
f()
f()
}

View File

@@ -137,6 +137,7 @@ func TestErrBuiltin(t *testing.T) {
test("advance", func(ctx *context) { ctx.advance(nil, nil) })
test("alloca", func(ctx *context) { ctx.alloca(nil, nil) })
test("allocaCStr", func(ctx *context) { ctx.allocaCStr(nil, nil) })
test("string", func(ctx *context) { ctx.string(nil, nil) })
test("stringData", func(ctx *context) { ctx.stringData(nil, nil) })
test("sigsetjmp", func(ctx *context) { ctx.sigsetjmp(nil, nil) })
test("siglongjmp", func(ctx *context) { ctx.siglongjmp(nil, nil) })

View File

@@ -67,16 +67,20 @@ func (b Builder) getField(x Expr, idx int) Expr {
// -----------------------------------------------------------------------------
// MakeString creates a new string from a C string pointer and length.
func (b Builder) MakeString(cstr Expr, n ...Expr) Expr {
func (b Builder) MakeString(cstr Expr, n ...Expr) (ret Expr) {
if debugInstr {
log.Printf("MakeString %v\n", cstr.impl)
}
pkg := b.Pkg
prog := b.Prog
ret.Type = prog.String()
if len(n) == 0 {
return b.Call(pkg.rtFunc("StringFromCStr"), cstr)
}
ret.impl = b.Call(pkg.rtFunc("StringFromCStr"), cstr).impl
} else {
// TODO(xsw): remove Convert
return b.Call(pkg.rtFunc("StringFrom"), cstr, b.Convert(b.Prog.Int(), n[0]))
ret.impl = b.Call(pkg.rtFunc("StringFrom"), cstr, b.Convert(prog.Int(), n[0])).impl
}
return
}
// StringData returns the data pointer of a string.