| // Copyright 2009 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 file contains test cases for short valid and invalid programs. |
| |
| package parser |
| |
| import "testing" |
| |
| var valids = []string{ |
| "package p\n", |
| `package p;`, |
| `package p; import "fmt"; func f() { fmt.Println("Hello, World!") };`, |
| `package p; func f() { if f(T{}) {} };`, |
| `package p; func f() { _ = (<-chan int)(x) };`, |
| `package p; func f() { _ = (<-chan <-chan int)(x) };`, |
| `package p; func f(func() func() func());`, |
| `package p; func f(...T);`, |
| `package p; func f(float, ...int);`, |
| `package p; func f(x int, a ...int) { f(0, a...); f(1, a...,) };`, |
| `package p; func f(int,) {};`, |
| `package p; func f(...int,) {};`, |
| `package p; func f(x ...int,) {};`, |
| `package p; type T []int; var a []bool; func f() { if a[T{42}[0]] {} };`, |
| `package p; type T []int; func g(int) bool { return true }; func f() { if g(T{42}[0]) {} };`, |
| `package p; type T []int; func f() { for _ = range []int{T{42}[0]} {} };`, |
| `package p; var a = T{{1, 2}, {3, 4}}`, |
| `package p; func f() { select { case <- c: case c <- d: case c <- <- d: case <-c <- d: } };`, |
| `package p; func f() { select { case x := (<-c): } };`, |
| `package p; func f() { if ; true {} };`, |
| `package p; func f() { switch ; {} };`, |
| `package p; func f() { for _ = range "foo" + "bar" {} };`, |
| } |
| |
| func TestValid(t *testing.T) { |
| for _, src := range valids { |
| checkErrors(t, src, src) |
| } |
| } |
| |
| var invalids = []string{ |
| `foo /* ERROR "expected 'package'" */ !`, |
| `package p; func f() { if { /* ERROR "expected operand" */ } };`, |
| `package p; func f() { if ; { /* ERROR "expected operand" */ } };`, |
| `package p; func f() { if f(); { /* ERROR "expected operand" */ } };`, |
| `package p; const c; /* ERROR "expected '='" */`, |
| `package p; func f() { if _ /* ERROR "expected condition" */ = range x; true {} };`, |
| `package p; func f() { switch _ /* ERROR "expected condition" */ = range x; true {} };`, |
| `package p; func f() { for _ = range x ; /* ERROR "expected '{'" */ ; {} };`, |
| `package p; func f() { for ; ; _ = range /* ERROR "expected operand" */ x {} };`, |
| `package p; func f() { for ; _ /* ERROR "expected condition" */ = range x ; {} };`, |
| `package p; func f() { switch t /* ERROR "expected condition" */ = t.(type) {} };`, |
| `package p; func f() { switch t /* ERROR "expected condition" */ , t = t.(type) {} };`, |
| `package p; func f() { switch t /* ERROR "expected condition" */ = t.(type), t {} };`, |
| `package p; var a = [ /* ERROR "expected expression" */ 1]int;`, |
| `package p; var a = [ /* ERROR "expected expression" */ ...]int;`, |
| `package p; var a = struct /* ERROR "expected expression" */ {}`, |
| `package p; var a = func /* ERROR "expected expression" */ ();`, |
| `package p; var a = interface /* ERROR "expected expression" */ {}`, |
| `package p; var a = [ /* ERROR "expected expression" */ ]int`, |
| `package p; var a = map /* ERROR "expected expression" */ [int]int`, |
| `package p; var a = chan /* ERROR "expected expression" */ int;`, |
| `package p; var a = []int{[ /* ERROR "expected expression" */ ]int};`, |
| `package p; var a = ( /* ERROR "expected expression" */ []int);`, |
| `package p; var a = a[[ /* ERROR "expected expression" */ ]int:[]int];`, |
| `package p; var a = <- /* ERROR "expected expression" */ chan int;`, |
| `package p; func f() { select { case _ <- chan /* ERROR "expected expression" */ int: } };`, |
| } |
| |
| func TestInvalid(t *testing.T) { |
| for _, src := range invalids { |
| checkErrors(t, src, src) |
| } |
| } |