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4deda6ea98
* Changes to make vendored packages accept new home. * Fix go2idl to import vendored packages.
116 lines
6.6 KiB
Go
116 lines
6.6 KiB
Go
// Copyright 2009 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 contains test cases for short valid and invalid programs.
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package parser
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import "testing"
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var valids = []string{
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"package p\n",
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`package p;`,
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`package p; import "fmt"; func f() { fmt.Println("Hello, World!") };`,
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`package p; func f() { if f(T{}) {} };`,
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`package p; func f() { _ = <-chan int(nil) };`,
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`package p; func f() { _ = (<-chan int)(nil) };`,
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`package p; func f() { _ = (<-chan <-chan int)(nil) };`,
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`package p; func f() { _ = <-chan <-chan <-chan <-chan <-int(nil) };`,
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`package p; func f(func() func() func());`,
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`package p; func f(...T);`,
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`package p; func f(float, ...int);`,
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`package p; func f(x int, a ...int) { f(0, a...); f(1, a...,) };`,
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`package p; func f(int,) {};`,
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`package p; func f(...int,) {};`,
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`package p; func f(x ...int,) {};`,
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`package p; type T []int; var a []bool; func f() { if a[T{42}[0]] {} };`,
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`package p; type T []int; func g(int) bool { return true }; func f() { if g(T{42}[0]) {} };`,
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`package p; type T []int; func f() { for _ = range []int{T{42}[0]} {} };`,
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`package p; var a = T{{1, 2}, {3, 4}}`,
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`package p; func f() { select { case <- c: case c <- d: case c <- <- d: case <-c <- d: } };`,
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`package p; func f() { select { case x := (<-c): } };`,
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`package p; func f() { if ; true {} };`,
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`package p; func f() { switch ; {} };`,
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`package p; func f() { for _ = range "foo" + "bar" {} };`,
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`package p; func f() { var s []int; g(s[:], s[i:], s[:j], s[i:j], s[i:j:k], s[:j:k]) };`,
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`package p; var ( _ = (struct {*T}).m; _ = (interface {T}).m )`,
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`package p; func ((T),) m() {}`,
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`package p; func ((*T),) m() {}`,
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`package p; func (*(T),) m() {}`,
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`package p; func _(x []int) { for range x {} }`,
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`package p; func _() { if [T{}.n]int{} {} }`,
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`package p; func _() { map[int]int{}[0]++; map[int]int{}[0] += 1 }`,
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`package p; func _(x interface{f()}) { interface{f()}(x).f() }`,
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`package p; func _(x chan int) { chan int(x) <- 0 }`,
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`package p; const (x = 0; y; z)`, // issue 9639
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`package p; var _ = map[P]int{P{}:0, {}:1}`,
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`package p; var _ = map[*P]int{&P{}:0, {}:1}`,
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}
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func TestValid(t *testing.T) {
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for _, src := range valids {
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checkErrors(t, src, src)
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}
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}
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var invalids = []string{
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`foo /* ERROR "expected 'package'" */ !`,
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`package p; func f() { if { /* ERROR "expected operand" */ } };`,
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`package p; func f() { if ; { /* ERROR "expected operand" */ } };`,
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`package p; func f() { if f(); { /* ERROR "expected operand" */ } };`,
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`package p; func f() { if _ /* ERROR "expected boolean expression" */ = range x; true {} };`,
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`package p; func f() { switch _ /* ERROR "expected switch expression" */ = range x; true {} };`,
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`package p; func f() { for _ = range x ; /* ERROR "expected '{'" */ ; {} };`,
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`package p; func f() { for ; ; _ = range /* ERROR "expected operand" */ x {} };`,
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`package p; func f() { for ; _ /* ERROR "expected boolean or range expression" */ = range x ; {} };`,
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`package p; func f() { switch t /* ERROR "expected switch expression" */ = t.(type) {} };`,
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`package p; func f() { switch t /* ERROR "expected switch expression" */ , t = t.(type) {} };`,
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`package p; func f() { switch t /* ERROR "expected switch expression" */ = t.(type), t {} };`,
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`package p; var a = [ /* ERROR "expected expression" */ 1]int;`,
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`package p; var a = [ /* ERROR "expected expression" */ ...]int;`,
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`package p; var a = struct /* ERROR "expected expression" */ {}`,
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`package p; var a = func /* ERROR "expected expression" */ ();`,
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`package p; var a = interface /* ERROR "expected expression" */ {}`,
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`package p; var a = [ /* ERROR "expected expression" */ ]int`,
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`package p; var a = map /* ERROR "expected expression" */ [int]int`,
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`package p; var a = chan /* ERROR "expected expression" */ int;`,
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`package p; var a = []int{[ /* ERROR "expected expression" */ ]int};`,
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`package p; var a = ( /* ERROR "expected expression" */ []int);`,
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`package p; var a = a[[ /* ERROR "expected expression" */ ]int:[]int];`,
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`package p; var a = <- /* ERROR "expected expression" */ chan int;`,
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`package p; func f() { select { case _ <- chan /* ERROR "expected expression" */ int: } };`,
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`package p; func f() { _ = (<-<- /* ERROR "expected 'chan'" */ chan int)(nil) };`,
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`package p; func f() { _ = (<-chan<-chan<-chan<-chan<-chan<- /* ERROR "expected channel type" */ int)(nil) };`,
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`package p; func f() { var t []int; t /* ERROR "expected identifier on left side of :=" */ [0] := 0 };`,
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`package p; func f() { if x := g(); x = /* ERROR "expected '=='" */ 0 {}};`,
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`package p; func f() { _ = x = /* ERROR "expected '=='" */ 0 {}};`,
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`package p; func f() { _ = 1 == func()int { var x bool; x = x = /* ERROR "expected '=='" */ true; return x }() };`,
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`package p; func f() { var s []int; _ = s[] /* ERROR "expected operand" */ };`,
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`package p; func f() { var s []int; _ = s[i:j: /* ERROR "3rd index required" */ ] };`,
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`package p; func f() { var s []int; _ = s[i: /* ERROR "2nd index required" */ :k] };`,
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`package p; func f() { var s []int; _ = s[i: /* ERROR "2nd index required" */ :] };`,
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`package p; func f() { var s []int; _ = s[: /* ERROR "2nd index required" */ :] };`,
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`package p; func f() { var s []int; _ = s[: /* ERROR "2nd index required" */ ::] };`,
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`package p; func f() { var s []int; _ = s[i:j:k: /* ERROR "expected ']'" */ l] };`,
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`package p; func f() { for x /* ERROR "boolean or range expression" */ = []string {} }`,
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`package p; func f() { for x /* ERROR "boolean or range expression" */ := []string {} }`,
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`package p; func f() { for i /* ERROR "boolean or range expression" */ , x = []string {} }`,
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`package p; func f() { for i /* ERROR "boolean or range expression" */ , x := []string {} }`,
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`package p; func f() { go f /* ERROR HERE "function must be invoked" */ }`,
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`package p; func f() { defer func() {} /* ERROR HERE "function must be invoked" */ }`,
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`package p; func f() { go func() { func() { f(x func /* ERROR "missing ','" */ (){}) } } }`,
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`package p; func f(x func(), u v func /* ERROR "missing ','" */ ()){}`,
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`package p; func f() (a b string /* ERROR "missing ','" */ , ok bool)`, // issue 8656
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`package p; var x /* ERROR "missing variable type or initialization" */ , y, z;`, // issue 9639
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`package p; const x /* ERROR "missing constant value" */ ;`, // issue 9639
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`package p; const x /* ERROR "missing constant value" */ int;`, // issue 9639
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`package p; const (x = 0; y; z /* ERROR "missing constant value" */ int);`, // issue 9639
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}
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func TestInvalid(t *testing.T) {
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for _, src := range invalids {
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checkErrors(t, src, src)
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}
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}
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