mirror of
https://github.com/golang/go
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01f8cd246d
They will be deleted from their current homes once this has landed. Changes made to import paths to make the code compile, and to find errchk in the right place in cmd/vet's Makefile. TODO in a later CL: tidy up vet. R=golang-dev, gri CC=golang-dev https://golang.org/cl/9495043
66 lines
1.1 KiB
Go
66 lines
1.1 KiB
Go
// Tests of call chaining f(g()) when g has multiple return values (MRVs).
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// See https://code.google.com/p/go/issues/detail?id=4573.
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package main
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func assert(actual, expected int) {
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if actual != expected {
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panic(actual)
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}
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}
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func g() (int, int) {
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return 5, 7
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}
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func g2() (float64, float64) {
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return 5, 7
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}
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func f1v(x int, v ...int) {
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assert(x, 5)
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assert(v[0], 7)
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}
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func f2(x, y int) {
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assert(x, 5)
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assert(y, 7)
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}
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func f2v(x, y int, v ...int) {
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assert(x, 5)
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assert(y, 7)
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assert(len(v), 0)
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}
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func complexArgs() (float64, float64) {
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return 5, 7
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}
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func appendArgs() ([]string, string) {
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return []string{"foo"}, "bar"
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}
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func h() (interface{}, bool) {
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m := map[int]string{1: "hi"}
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return m[1] // string->interface{} conversion within multi-valued expression
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}
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func main() {
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f1v(g())
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f2(g())
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f2v(g())
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// TODO(gri): the typechecker still doesn't support these cases correctly.
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// if c := complex(complexArgs()); c != 5+7i {
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// panic(c)
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// }
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// if s := append(appendArgs()); len(s) != 2 || s[0] != "foo" || s[1] != "bar" {
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// panic(s)
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// }
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i, ok := h()
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if !ok || i.(string) != "hi" {
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panic(i)
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}
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}
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