mirror of
https://github.com/apple/swift.git
synced 2025-12-21 12:14:44 +01:00
112 lines
3.6 KiB
Swift
112 lines
3.6 KiB
Swift
// RUN: %target-run-simple-swift
|
|
// REQUIRES: executable_test
|
|
// REQUIRES: OS=macosx
|
|
// REQUIRES: objc_interop
|
|
|
|
import Foundation
|
|
import StdlibUnittest
|
|
import SwiftSyntax
|
|
|
|
func loc(_ file: String = #file, line: Int = #line,
|
|
column: Int = #line) -> SourceLocation {
|
|
return SourceLocation(line: line, column: column, offset: 0, file: file)
|
|
}
|
|
|
|
func getInput(_ file: String) -> URL {
|
|
var result = URL(fileURLWithPath: #file)
|
|
result.deleteLastPathComponent()
|
|
result.appendPathComponent("Inputs")
|
|
result.appendPathComponent(file)
|
|
return result
|
|
}
|
|
|
|
/// Adds static constants to Diagnostic.Message.
|
|
extension Diagnostic.Message {
|
|
/// Error thrown when a conversion between two types is impossible.
|
|
static func cannotConvert(fromType: String,
|
|
toType: String) -> Diagnostic.Message {
|
|
return .init(.error,
|
|
"cannot convert value of type '\(fromType)' to '\(toType)'")
|
|
}
|
|
|
|
/// Suggestion for the user to explicitly check a value does not equal zero.
|
|
static let checkEqualToZero =
|
|
Diagnostic.Message(.note, "check for explicit equality to '0'")
|
|
|
|
static func badFunction(_ name: TokenSyntax) -> Diagnostic.Message {
|
|
return .init(.error, "bad function '\(name.text)'")
|
|
}
|
|
static func endOfFunction(_ name: TokenSyntax) -> Diagnostic.Message {
|
|
return .init(.warning, "end of function '\(name.text)'")
|
|
}
|
|
}
|
|
|
|
var Diagnostics = TestSuite("Diagnostics")
|
|
|
|
Diagnostics.test("DiagnosticEmission") {
|
|
let startLoc = loc()
|
|
let fixLoc = loc()
|
|
|
|
let engine = DiagnosticEngine()
|
|
expectFalse(engine.hasErrors)
|
|
|
|
engine.diagnose(.cannotConvert(fromType: "Int", toType: "Bool"),
|
|
location: startLoc) {
|
|
$0.note(.checkEqualToZero, location: fixLoc,
|
|
fixIts: [.insert(fixLoc, " != 0")])
|
|
}
|
|
|
|
expectEqual(engine.diagnostics.count, 1)
|
|
guard let diag = engine.diagnostics.first else { return }
|
|
expectEqual(diag.message.text,
|
|
"cannot convert value of type 'Int' to 'Bool'")
|
|
expectEqual(diag.message.severity, .error)
|
|
expectEqual(diag.notes.count, 1)
|
|
expectTrue(engine.hasErrors)
|
|
|
|
guard let note = diag.notes.first else { return }
|
|
expectEqual(note.message.text, "check for explicit equality to '0'")
|
|
expectEqual(note.message.severity, .note)
|
|
expectEqual(note.fixIts.count, 1)
|
|
|
|
guard let fixIt = note.fixIts.first else { return }
|
|
expectEqual(fixIt.text, " != 0")
|
|
}
|
|
|
|
Diagnostics.test("SourceLocations") {
|
|
let engine = DiagnosticEngine()
|
|
engine.addConsumer(PrintingDiagnosticConsumer())
|
|
let url = getInput("diagnostics.swift")
|
|
|
|
class Visitor: SyntaxVisitor {
|
|
let url: URL
|
|
let engine: DiagnosticEngine
|
|
init(url: URL, engine: DiagnosticEngine) {
|
|
self.url = url
|
|
self.engine = engine
|
|
}
|
|
override func visit(_ function: FunctionDeclSyntax) {
|
|
let startLoc = function.identifier.startLocation(in: url)
|
|
let endLoc = function.endLocation(in: url)
|
|
print("\(function.identifier.text): startLoc: \(startLoc), endLoc: \(endLoc)")
|
|
engine.diagnose(.badFunction(function.identifier), location: startLoc) {
|
|
$0.highlight(function.identifier.sourceRange(in: self.url))
|
|
}
|
|
engine.diagnose(.endOfFunction(function.identifier), location: endLoc)
|
|
}
|
|
}
|
|
|
|
expectDoesNotThrow({
|
|
let file = try SyntaxTreeParser.parse(url)
|
|
Visitor(url: url, engine: engine).visit(file)
|
|
})
|
|
|
|
expectEqual(6, engine.diagnostics.count)
|
|
let lines = Set(engine.diagnostics.compactMap { $0.location?.line })
|
|
expectEqual([1, 3, 5, 7, 9, 11], lines)
|
|
let columns = Set(engine.diagnostics.compactMap { $0.location?.column })
|
|
expectEqual([6, 2], columns)
|
|
}
|
|
|
|
runAllTests()
|