-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathexprstring_test.go
132 lines (109 loc) · 2.52 KB
/
exprstring_test.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
// Copyright 2013 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.
package types_test
import (
"go/parser"
"testing"
. "go/types"
)
var testExprs = []testEntry{
// basic type literals
dup("x"),
dup("true"),
dup("42"),
dup("3.1415"),
dup("2.71828i"),
dup(`'a'`),
dup(`"foo"`),
dup("`bar`"),
dup("any"),
// func and composite literals
{"func(){}", "(func() literal)"},
{"func(x int) complex128 {}", "(func(x int) complex128 literal)"},
{"[]int{1, 2, 3}", "[]int{…}"},
// type expressions
dup("[1 << 10]byte"),
dup("[]int"),
dup("*int"),
dup("struct{x int}"),
dup("func()"),
dup("func(int, float32) string"),
dup("interface{m()}"),
dup("interface{m() string; n(x int)}"),
dup("interface{~int}"),
dup("map[string]int"),
dup("chan E"),
dup("<-chan E"),
dup("chan<- E"),
// new interfaces
dup("interface{int}"),
dup("interface{~int}"),
// generic constraints
dup("interface{~a | ~b | ~c; ~int | ~string; float64; m()}"),
dup("interface{int | string}"),
dup("interface{~int | ~string; float64; m()}"),
dup("interface{~T[int, string] | string}"),
// generic types
dup("x[T]"),
dup("x[N | A | S]"),
dup("x[N, A]"),
// non-type expressions
dup("(x)"),
dup("x.f"),
dup("a[i]"),
dup("s[:]"),
dup("s[i:]"),
dup("s[:j]"),
dup("s[i:j]"),
dup("s[:j:k]"),
dup("s[i:j:k]"),
dup("x.(T)"),
dup("x.([10]int)"),
dup("x.([...]int)"),
dup("x.(struct{})"),
dup("x.(struct{x int; y, z float32; E})"),
dup("x.(func())"),
dup("x.(func(x int))"),
dup("x.(func() int)"),
dup("x.(func(x, y int, z float32) (r int))"),
dup("x.(func(a, b, c int))"),
dup("x.(func(x ...T))"),
dup("x.(interface{})"),
dup("x.(interface{m(); n(x int); E})"),
dup("x.(interface{m(); n(x int) T; E; F})"),
dup("x.(map[K]V)"),
dup("x.(chan E)"),
dup("x.(<-chan E)"),
dup("x.(chan<- chan int)"),
dup("x.(chan<- <-chan int)"),
dup("x.(<-chan chan int)"),
dup("x.(chan (<-chan int))"),
dup("f()"),
dup("f(x)"),
dup("int(x)"),
dup("f(x, x + y)"),
dup("f(s...)"),
dup("f(a, s...)"),
// generic functions
dup("f[T]()"),
dup("f[T](T)"),
dup("f[T, T1]()"),
dup("f[T, T1](T, T1)"),
dup("*x"),
dup("&x"),
dup("x + y"),
dup("x + y << (2 * s)"),
}
func TestExprString(t *testing.T) {
for _, test := range testExprs {
x, err := parser.ParseExpr(test.src)
if err != nil {
t.Errorf("%s: %s", test.src, err)
continue
}
if got := ExprString(x); got != test.str {
t.Errorf("%s: got %s, want %s", test.src, got, test.str)
}
}
}