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
|
//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
import SwiftParser
import XCTest
/// Defines whether a name is expected to be a valid identifier in the given contexts.
private struct ValidIdentifierSpec: ExpressibleByBooleanLiteral {
let variableName: Bool
let memberAccess: Bool
init(variableName: Bool, memberAccess: Bool) {
self.variableName = variableName
self.memberAccess = memberAccess
}
init(booleanLiteral value: BooleanLiteralType) {
self.init(variableName: value, memberAccess: value)
}
}
private func assertValidIdentifier(
_ name: String,
_ spec: ValidIdentifierSpec,
file: StaticString = #filePath,
line: UInt = #line
) {
XCTAssertEqual(
name.isValidSwiftIdentifier(for: .variableName),
spec.variableName,
"Checking identifier for variableName context",
file: file,
line: line
)
XCTAssertEqual(
name.isValidSwiftIdentifier(for: .memberAccess),
spec.memberAccess,
"Checking identifier for memberAccess context",
file: file,
line: line
)
}
class IsValidIdentifierTests: XCTestCase {
func testIsValidIdentifier() {
assertValidIdentifier("test", true)
assertValidIdentifier("class", ValidIdentifierSpec(variableName: false, memberAccess: true))
assertValidIdentifier("`class`", true)
assertValidIdentifier("self", false)
assertValidIdentifier("`self`", true)
assertValidIdentifier("let", ValidIdentifierSpec(variableName: false, memberAccess: true))
assertValidIdentifier("`let`", true)
assertValidIdentifier("", false)
assertValidIdentifier("test: Int", false)
assertValidIdentifier("test ", false)
assertValidIdentifier(" test", false)
assertValidIdentifier("te st", false)
assertValidIdentifier("test\0", false)
assertValidIdentifier("test\0test", false)
assertValidIdentifier("test(x:)", false)
assertValidIdentifier("👩👩👧👧", true)
}
}
|
