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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2024 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 Foundation
@_spi(Experimental) import SwiftLexicalLookup
import SwiftSyntax
import XCTest
final class testSimpleQueries: XCTestCase {
func testLabeledStmtLookupThreeNested() {
assertLexicalScopeQuery(
source: """
1️⃣one: for i in 1..<10 {
while true {
2️⃣two: do {
3️⃣break one
} while true
}
4️⃣break
}
""",
methodUnderTest: { _, argument in
argument.lookupLabeledStmts()
},
expected: ["3️⃣": ["2️⃣", "1️⃣"], "4️⃣": ["1️⃣"]]
)
}
func testNoLabeledStatements() {
assertLexicalScopeQuery(
source: """
while true {
1️⃣break
}
""",
methodUnderTest: { _, argument in
argument.lookupLabeledStmts()
},
expected: ["1️⃣": []]
)
}
func testLabeledStmtLookupClassNestedWithinLoop() {
assertLexicalScopeQuery(
source: """
1️⃣one: while true {
class a {
func foo() {
2️⃣two: while true {
3️⃣break
}
}
}
4️⃣break
}
""",
methodUnderTest: { _, argument in
argument.lookupLabeledStmts()
},
expected: ["3️⃣": ["2️⃣"], "4️⃣": ["1️⃣"]]
)
}
func testLabeledStmtLookupClosureNestedWithinLoop() {
assertLexicalScopeQuery(
source: """
1️⃣one: while true {
var a = {
2️⃣two: while true {
3️⃣break
}
}
4️⃣break
}
""",
methodUnderTest: { _, argument in
argument.lookupLabeledStmts()
},
expected: ["3️⃣": ["2️⃣"], "4️⃣": ["1️⃣"]]
)
}
func testLabeledStmtLookupFunctionNestedWithinLoop() {
assertLexicalScopeQuery(
source: """
1️⃣one: while true {
func foo() {
2️⃣two: while true {
3️⃣break
}
}
4️⃣break
}
""",
methodUnderTest: { _, argument in
argument.lookupLabeledStmts()
},
expected: ["3️⃣": ["2️⃣"], "4️⃣": ["1️⃣"]]
)
}
func testLookupFallthroughDestination() {
assertLexicalScopeQuery(
source: """
func foo() {
7️⃣fallthrough
}
switch a {
1️⃣case 1:
2️⃣fallthrough
3️⃣case 2:
4️⃣fallthrough
5️⃣default:
6️⃣fallthrough
}
""",
methodUnderTest: { _, argument in
guard let fallthroughStmt = argument.ancestorOrSelf(mapping: { $0.as(FallThroughStmtSyntax.self) }) else {
return []
}
let result = fallthroughStmt.lookupFallthroughSourceAndDestintation()
return [result.source, result.destination]
},
expected: ["2️⃣": ["1️⃣", "3️⃣"], "4️⃣": ["3️⃣", "5️⃣"], "6️⃣": ["5️⃣", nil], "7️⃣": [nil, nil]]
)
}
func testLookupCatchNode() {
assertLexicalScopeQuery(
source: """
1️⃣func foo() throws {
2️⃣do {
try 3️⃣f()
4️⃣try? 5️⃣f()
} catch {
throw 6️⃣error
}
}
8️⃣func bar() {
throw 7️⃣f()
}
""",
methodUnderTest: { _, argument in
return [argument.lookupCatchNode()]
},
expected: ["3️⃣": ["2️⃣"], "5️⃣": ["4️⃣"], "6️⃣": ["1️⃣"], "7️⃣": ["8️⃣"]]
)
}
func testLookupCatchNodeWithNestedDoCatch() {
assertLexicalScopeQuery(
source: """
1️⃣func foo() rethrows {
2️⃣do {
3️⃣do {
try 4️⃣f()
} catch {
try 5️⃣f()
}
} catch {
6️⃣try! 7️⃣f()
throw 8️⃣f()
}
}
""",
methodUnderTest: { _, argument in
[argument.lookupCatchNode()]
},
expected: ["4️⃣": ["3️⃣"], "5️⃣": ["2️⃣"], "7️⃣": ["6️⃣"], "8️⃣": ["1️⃣"]]
)
}
func testCatchBlockLookupFromWithinExpressionList() {
assertLexicalScopeQuery(
source: """
1️⃣do {
try 2️⃣x + 3️⃣y + 4️⃣z
5️⃣try! 6️⃣x + 7️⃣y + 8️⃣z
} catch {
print(error)
}
""",
methodUnderTest: { _, argument in
[argument.lookupCatchNode()]
},
expected: ["2️⃣": ["1️⃣"], "3️⃣": ["1️⃣"], "4️⃣": ["1️⃣"], "6️⃣": ["5️⃣"], "7️⃣": ["5️⃣"], "8️⃣": ["5️⃣"]]
)
}
}
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