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
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
|
//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2023 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
// This test file has been translated from swift/test/Parse/async.swift
import XCTest
final class AsyncTests: ParserTestCase {
func testAsync1() {
assertParse(
"""
// Parsing function declarations with 'async'
func asyncGlobal1() async { }
func asyncGlobal2() async throws { }
"""
)
}
func testAsync2() {
assertParse(
"func asyncGlobal3() throws 1️⃣async { }",
diagnostics: [
DiagnosticSpec(
message: "'async' must precede 'throws'",
fixIts: ["move 'async' in front of 'throws'"]
)
],
fixedSource: "func asyncGlobal3() async throws { }"
)
}
func testAsync3() {
assertParse(
"func asyncGlobal3(fn: () throws -> Int) rethrows 1️⃣async { }",
diagnostics: [
DiagnosticSpec(
message: "'async' must precede 'rethrows'",
fixIts: ["move 'async' in front of 'rethrows'"]
)
],
fixedSource: "func asyncGlobal3(fn: () throws -> Int) async rethrows { }"
)
}
func testAsync4() {
assertParse(
"func asyncGlobal4() -> Int 1️⃣async { }",
diagnostics: [
DiagnosticSpec(
message: "'async' must precede '->'",
fixIts: ["move 'async' in front of '->'"]
)
],
fixedSource: "func asyncGlobal4() async -> Int { }"
)
}
func testAsync5() {
assertParse(
"func asyncGlobal5() -> Int 1️⃣async throws { }",
diagnostics: [
DiagnosticSpec(
message: "'async throws' must precede '->'",
fixIts: ["move 'async throws' in front of '->'"]
)
],
fixedSource: "func asyncGlobal5() async throws -> Int { }"
)
}
func testAsync6() {
assertParse(
"func asyncGlobal6() -> Int 1️⃣throws async { }",
diagnostics: [
DiagnosticSpec(
message: "'throws async' must precede '->'",
fixIts: ["move 'throws async' in front of '->'"]
)
],
fixedSource: "func asyncGlobal6() async throws -> Int { }"
)
}
func testAsync7() {
assertParse(
"func asyncGlobal7() throws -> Int 1️⃣async { }",
diagnostics: [
DiagnosticSpec(
message: "'async' must precede '->'",
fixIts: ["move 'async' in front of '->'"]
)
],
fixedSource: "func asyncGlobal7() async throws -> Int { }"
)
}
func testAsync8() {
assertParse(
"""
func asyncGlobal8() ℹ️async throws 1️⃣async -> 2️⃣async Int 3️⃣async {}
""",
diagnostics: [
DiagnosticSpec(
locationMarker: "1️⃣",
message: "'async' has already been specified",
notes: [NoteSpec(message: "'async' declared here")],
fixIts: ["remove redundant 'async'"]
),
DiagnosticSpec(
locationMarker: "2️⃣",
message: "'async' must precede '->'",
fixIts: ["remove redundant 'async'"]
),
DiagnosticSpec(
locationMarker: "3️⃣",
message: "'async' must precede '->'",
fixIts: ["remove redundant 'async'"]
),
],
fixedSource: """
func asyncGlobal8() async throws -> Int {}
"""
)
}
func testAsync9() {
assertParse(
"""
class X {
init() async { }
deinit async { }
func f() async { }
subscript(x: Int) 1️⃣async -> Int {
get {
return 0
}
set async {
}
}
}
""",
diagnostics: [
DiagnosticSpec(locationMarker: "1️⃣", message: "unexpected code 'async' in subscript")
]
)
}
func testAsync10a() {
assertParse(
"""
typealias AsyncFunc1 = () async -> ()
"""
)
}
func testAsync10b() {
assertParse(
"""
typealias AsyncFunc2 = () async throws -> ()
"""
)
}
func testAsync10c() {
assertParse(
"typealias AsyncFunc3 = () throws 1️⃣async -> ()",
diagnostics: [
DiagnosticSpec(
message: "'async' must precede 'throws'",
fixIts: ["move 'async' in front of 'throws'"]
)
],
fixedSource: "typealias AsyncFunc3 = () async throws -> ()"
)
}
func testAsync11a() {
assertParse(
"""
let _ = [() async -> ()]()
"""
)
}
func testAsync11b() {
assertParse(
"""
let _ = [() async throws -> ()]()
"""
)
}
func testAsync11c() {
assertParse(
"let _ = [() throws 1️⃣async -> ()]()",
diagnostics: [
DiagnosticSpec(
message: "'async' must precede 'throws'",
fixIts: ["move 'async' in front of 'throws'"]
)
],
fixedSource: "let _ = [() async throws -> ()]()"
)
}
func testAsync11d() {
assertParse(
"""
let _ = [() -> 1️⃣async ()]()
""",
diagnostics: [
DiagnosticSpec(
message: "'async' must precede '->'",
fixIts: ["move 'async' in front of '->'"]
)
],
fixedSource: """
let _ = [() async -> ()]()
"""
)
}
func testAsync12() {
assertParse(
"""
// Parsing await syntax.
struct MyFuture {
func await() -> Int { 0 }
}
"""
)
}
func testAsync13() {
assertParse(
"""
func testAwaitExpr() async {
let _ = await asyncGlobal1()
let myFuture = MyFuture()
let _ = myFuture.await()
}
"""
)
}
func testAsync14() {
assertParse(
"""
func getIntSomeday() async -> Int { 5 }
"""
)
}
func testAsync15() {
assertParse(
"""
func testAsyncLet() async {
async let x = await getIntSomeday()
_ = await x
}
"""
)
}
func testAsync16() {
assertParse(
"""
async func asyncIncorrectly() { }
"""
)
}
}
|
