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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
const builtin = @import("builtin");
const std = @import("std");
const expect = std.testing.expect;
const expectEqual = std.testing.expectEqual;
const mem = std.mem;
test "continue in for loop" {
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
const array = [_]i32{ 1, 2, 3, 4, 5 };
var sum: i32 = 0;
for (array) |x| {
sum += x;
if (x < 3) {
continue;
}
break;
}
if (sum != 6) unreachable;
}
test "break from outer for loop" {
try testBreakOuter();
comptime try testBreakOuter();
}
fn testBreakOuter() !void {
var array = "aoeu";
var count: usize = 0;
outer: for (array) |_| {
for (array) |_| {
count += 1;
break :outer;
}
}
try expect(count == 1);
}
test "continue outer for loop" {
try testContinueOuter();
comptime try testContinueOuter();
}
fn testContinueOuter() !void {
var array = "aoeu";
var counter: usize = 0;
outer: for (array) |_| {
for (array) |_| {
counter += 1;
continue :outer;
}
}
try expect(counter == array.len);
}
test "ignore lval with underscore (for loop)" {
for ([_]void{}) |_, i| {
_ = i;
for ([_]void{}) |_, j| {
_ = j;
break;
}
break;
}
}
test "basic for loop" {
if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
const expected_result = [_]u8{ 9, 8, 7, 6, 0, 1, 2, 3 } ** 3;
var buffer: [expected_result.len]u8 = undefined;
var buf_index: usize = 0;
const array = [_]u8{ 9, 8, 7, 6 };
for (array) |item| {
buffer[buf_index] = item;
buf_index += 1;
}
for (array) |item, index| {
_ = item;
buffer[buf_index] = @intCast(u8, index);
buf_index += 1;
}
const array_ptr = &array;
for (array_ptr) |item| {
buffer[buf_index] = item;
buf_index += 1;
}
for (array_ptr) |item, index| {
_ = item;
buffer[buf_index] = @intCast(u8, index);
buf_index += 1;
}
const unknown_size: []const u8 = &array;
for (unknown_size) |item| {
buffer[buf_index] = item;
buf_index += 1;
}
for (unknown_size) |_, index| {
buffer[buf_index] = @intCast(u8, index);
buf_index += 1;
}
try expect(mem.eql(u8, buffer[0..buf_index], &expected_result));
}
test "for with null and T peer types and inferred result location type" {
if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
const S = struct {
fn doTheTest(slice: []const u8) !void {
if (for (slice) |item| {
if (item == 10) {
break item;
}
} else null) |v| {
_ = v;
@panic("fail");
}
}
};
try S.doTheTest(&[_]u8{ 1, 2 });
comptime try S.doTheTest(&[_]u8{ 1, 2 });
}
test "2 break statements and an else" {
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
const S = struct {
fn entry(t: bool, f: bool) !void {
var buf: [10]u8 = undefined;
var ok = false;
ok = for (buf) |item| {
_ = item;
if (f) break false;
if (t) break true;
} else false;
try expect(ok);
}
};
try S.entry(true, false);
comptime try S.entry(true, false);
}
test "for loop with pointer elem var" {
if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
const source = "abcdefg";
var target: [source.len]u8 = undefined;
mem.copy(u8, target[0..], source);
mangleString(target[0..]);
try expect(mem.eql(u8, &target, "bcdefgh"));
for (source) |*c, i| {
_ = i;
try expect(@TypeOf(c) == *const u8);
}
for (target) |*c, i| {
_ = i;
try expect(@TypeOf(c) == *u8);
}
}
fn mangleString(s: []u8) void {
for (s) |*c| {
c.* += 1;
}
}
test "for copies its payload" {
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
const S = struct {
fn doTheTest() !void {
var x = [_]usize{ 1, 2, 3 };
for (x) |value, i| {
// Modify the original array
x[i] += 99;
try expect(value == i + 1);
}
}
};
try S.doTheTest();
comptime try S.doTheTest();
}
test "for on slice with allowzero ptr" {
if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_c) return error.SkipZigTest; // TODO
const S = struct {
fn doTheTest(slice: []const u8) !void {
var ptr = @ptrCast([*]allowzero const u8, slice.ptr)[0..slice.len];
for (ptr) |x, i| try expect(x == i + 1);
for (ptr) |*x, i| try expect(x.* == i + 1);
}
};
try S.doTheTest(&[_]u8{ 1, 2, 3, 4 });
comptime try S.doTheTest(&[_]u8{ 1, 2, 3, 4 });
}
test "else continue outer for" {
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
var i: usize = 6;
var buf: [5]u8 = undefined;
while (true) {
i -= 1;
for (buf[i..5]) |_| {
return;
} else continue;
}
}
|
