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SwiftDriverTests.swift
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//===--------------- SwiftDriverTests.swift - Swift Driver Tests -======---===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2019 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
//
//===----------------------------------------------------------------------===//
@testable @_spi(Testing) import SwiftDriver
import SwiftDriverExecution
import SwiftOptions
import TSCBasic
import XCTest
import TestUtilities
private func executableName(_ name: String) -> String {
#if os(Windows)
if name.count > 4, name.suffix(from: name.index(name.endIndex, offsetBy: -4)) == ".exe" {
return name
}
return "\(name).exe"
#else
return name
#endif
}
private func rebase(_ arc: String, at base: AbsolutePath = localFileSystem.currentWorkingDirectory!) -> String {
base.appending(component: arc).nativePathString(escaped: false)
}
private func rebase(_ arcs: String..., at base: AbsolutePath = localFileSystem.currentWorkingDirectory!) -> String {
base.appending(components: arcs).nativePathString(escaped: false)
}
private var testInputsPath: AbsolutePath {
get throws {
var root: AbsolutePath = try AbsolutePath(validating: #file)
while root.basename != "Tests" {
root = root.parentDirectory
}
return root.parentDirectory.appending(component: "TestInputs")
}
}
func toPath(_ path: String, base: AbsolutePath = localFileSystem.currentWorkingDirectory!) throws -> VirtualPath {
return try VirtualPath(path: path).resolvedRelativePath(base: base)
}
func toPathOption(_ path: String, base: AbsolutePath = localFileSystem.currentWorkingDirectory!) throws -> Job.ArgTemplate {
return .path(try toPath(path, base: base))
}
final class SwiftDriverTests: XCTestCase {
private var ld: AbsolutePath!
override func setUp() {
do {
self.ld = try withTemporaryDirectory(removeTreeOnDeinit: false) {
let ld = $0.appending(component: executableName("ld64.lld"))
try localFileSystem.writeFileContents(ld, bytes: "")
try localFileSystem.chmod(.executable, path: AbsolutePath(validating: ld.nativePathString(escaped: false)))
return ld
}
} catch {
fatalError("unable to create stub 'ld' tool")
}
}
override func tearDown() {
try? localFileSystem.removeFileTree(AbsolutePath(validating: self.ld.dirname))
}
private var envWithFakeSwiftHelp: [String: String] {
// During build-script builds, build products are not installed into the toolchain
// until a project's tests pass. However, we're in the middle of those tests,
// so there is no swift-help in the toolchain yet. Set the environment variable
// as if we had found it for the purposes of testing build planning.
var env = ProcessEnv.vars
env["SWIFT_DRIVER_TESTS_ENABLE_EXEC_PATH_FALLBACK"] = "1"
env["SWIFT_DRIVER_SWIFT_HELP_EXEC"] = "/tmp/.test-swift-help"
return env
}
/// Determine if the test's execution environment has LLDB
/// Used to skip tests that rely on LLDB in such environments.
private func testEnvHasLLDB() throws -> Bool {
let executor = try SwiftDriverExecutor(diagnosticsEngine: DiagnosticsEngine(),
processSet: ProcessSet(),
fileSystem: localFileSystem,
env: ProcessEnv.vars)
let toolchain: Toolchain
#if os(macOS)
toolchain = DarwinToolchain(env: ProcessEnv.vars, executor: executor)
#elseif os(Windows)
toolchain = WindowsToolchain(env: ProcessEnv.vars, executor: executor)
#else
toolchain = GenericUnixToolchain(env: ProcessEnv.vars, executor: executor)
#endif
do {
_ = try toolchain.getToolPath(.lldb)
} catch ToolchainError.unableToFind {
return false
}
return true
}
func testInvocationRunModes() throws {
let driver1 = try Driver.invocationRunMode(forArgs: ["swift"])
XCTAssertEqual(driver1.mode, .normal(isRepl: false))
XCTAssertEqual(driver1.args, ["swift"])
let driver2 = try Driver.invocationRunMode(forArgs: ["swift", "-buzz"])
XCTAssertEqual(driver2.mode, .normal(isRepl: false))
XCTAssertEqual(driver2.args, ["swift", "-buzz"])
let driver3 = try Driver.invocationRunMode(forArgs: ["swift", "/"])
XCTAssertEqual(driver3.mode, .normal(isRepl: false))
XCTAssertEqual(driver3.args, ["swift", "/"])
let driver4 = try Driver.invocationRunMode(forArgs: ["swift", "./foo"])
XCTAssertEqual(driver4.mode, .normal(isRepl: false))
XCTAssertEqual(driver4.args, ["swift", "./foo"])
let driver5 = try Driver.invocationRunMode(forArgs: ["swift", "repl"])
XCTAssertEqual(driver5.mode, .normal(isRepl: true))
XCTAssertEqual(driver5.args, ["swift", "-repl"])
let driver6 = try Driver.invocationRunMode(forArgs: ["swift", "foo", "bar"])
XCTAssertEqual(driver6.mode, .subcommand(executableName("swift-foo")))
XCTAssertEqual(driver6.args, [executableName("swift-foo"), "bar"])
let driver7 = try Driver.invocationRunMode(forArgs: ["swift", "-frontend", "foo", "bar"])
XCTAssertEqual(driver7.mode, .subcommand(executableName("swift-frontend")))
XCTAssertEqual(driver7.args, [executableName("swift-frontend"), "foo", "bar"])
let driver8 = try Driver.invocationRunMode(forArgs: ["swift", "-modulewrap", "foo", "bar"])
XCTAssertEqual(driver8.mode, .subcommand(executableName("swift-frontend")))
XCTAssertEqual(driver8.args, [executableName("swift-frontend"), "-modulewrap", "foo", "bar"])
}
func testSubcommandsHandling() throws {
XCTAssertNoThrow(try Driver(args: ["swift"]))
XCTAssertNoThrow(try Driver(args: ["swift", "-I=foo"]))
XCTAssertNoThrow(try Driver(args: ["swift", ".foo"]))
XCTAssertNoThrow(try Driver(args: ["swift", "/foo"]))
XCTAssertThrowsError(try Driver(args: ["swift", "foo"]))
}
func testDriverKindParsing() throws {
func assertArgs(
_ args: String...,
parseTo driverKind: DriverKind,
leaving remainingArgs: [String],
file: StaticString = #file, line: UInt = #line
) throws {
var args = args
let result = try Driver.determineDriverKind(args: &args)
XCTAssertEqual(result, driverKind, file: file, line: line)
XCTAssertEqual(args, remainingArgs, file: file, line: line)
}
func assertArgsThrow(
_ args: String...,
file: StaticString = #file, line: UInt = #line
) throws {
var args = args
XCTAssertThrowsError(try Driver.determineDriverKind(args: &args))
}
try assertArgs("swift", parseTo: .interactive, leaving: [])
try assertArgs("/path/to/swift", parseTo: .interactive, leaving: [])
try assertArgs("swiftc", parseTo: .batch, leaving: [])
try assertArgs(".build/debug/swiftc", parseTo: .batch, leaving: [])
try assertArgs("swiftc", "--driver-mode=swift", parseTo: .interactive, leaving: [])
try assertArgs("swift", "-zelda", parseTo: .interactive, leaving: ["-zelda"])
try assertArgs("swiftc", "--driver-mode=swift", "swiftc",
parseTo: .interactive, leaving: ["swiftc"])
try assertArgsThrow("driver")
try assertArgsThrow("swiftc", "--driver-mode=blah")
try assertArgsThrow("swiftc", "--driver-mode=")
}
func testCompilerMode() throws {
do {
let driver1 = try Driver(args: ["swift", "main.swift"])
XCTAssertEqual(driver1.compilerMode, .immediate)
let driver2 = try Driver(args: ["swift"])
XCTAssertEqual(driver2.compilerMode, .intro)
}
do {
let driver1 = try Driver(args: ["swiftc", "main.swift", "-whole-module-optimization"])
XCTAssertEqual(driver1.compilerMode, .singleCompile)
let driver2 = try Driver(args: ["swiftc", "main.swift", "-whole-module-optimization", "-no-whole-module-optimization"])
XCTAssertEqual(driver2.compilerMode, .standardCompile)
let driver3 = try Driver(args: ["swiftc", "main.swift", "-g"])
XCTAssertEqual(driver3.compilerMode, .standardCompile)
}
}
func testJoinedPathOptions() throws {
var driver = try Driver(args: ["swiftc", "-c", "-I=/some/dir", "-F=other/relative/dir", "foo.swift"])
let jobs = try driver.planBuild()
XCTAssertTrue(jobs[0].commandLine.contains(.joinedOptionAndPath("-I=", .absolute(try .init(validating: "/some/dir")))))
XCTAssertTrue(jobs[0].commandLine.contains(.joinedOptionAndPath("-F=", try toPath("other/relative/dir"))))
}
func testRelativeOptionOrdering() throws {
var driver = try Driver(args: ["swiftc", "foo.swift",
"-F", "/path/to/frameworks",
"-Fsystem", "/path/to/systemframeworks",
"-F", "/path/to/more/frameworks"])
let jobs = try driver.planBuild()
XCTAssertEqual(jobs[0].kind, .compile)
// The relative ordering of -F and -Fsystem options should be preserved.
XCTAssertTrue(jobs[0].commandLine.contains(subsequence: [.flag("-F"), .path(.absolute(try .init(validating: "/path/to/frameworks"))),
.flag("-Fsystem"), .path(.absolute(try .init(validating: "/path/to/systemframeworks"))),
.flag("-F"), .path(.absolute(try .init(validating: "/path/to/more/frameworks")))]))
}
func testBatchModeDiagnostics() throws {
try assertNoDriverDiagnostics(args: "swiftc", "-enable-batch-mode") { driver in
switch driver.compilerMode {
case .batchCompile:
break
default:
XCTFail("Expected batch compile, got \(driver.compilerMode)")
}
}
try assertDriverDiagnostics(args: "swiftc", "-enable-batch-mode", "-whole-module-optimization") { driver, diagnostics in
XCTAssertEqual(driver.compilerMode, .singleCompile)
diagnostics.expect(.warning("ignoring '-enable-batch-mode' because '-whole-module-optimization' was also specified"))
}
try assertDriverDiagnostics(args: "swiftc", "-enable-batch-mode", "-whole-module-optimization", "-no-whole-module-optimization", "-index-file", "-module-name", "foo") { driver, diagnostics in
XCTAssertEqual(driver.compilerMode, .singleCompile)
diagnostics.expect(.warning("ignoring '-enable-batch-mode' because '-index-file' was also specified"))
}
try assertNoDriverDiagnostics(args: "swiftc", "-enable-batch-mode", "-whole-module-optimization", "-no-whole-module-optimization") { driver in
switch driver.compilerMode {
case .batchCompile:
break
default:
XCTFail("Expected batch compile, got \(driver.compilerMode)")
}
}
}
func testHelp() throws {
do {
var driver = try Driver(args: ["swift", "--help"], env: envWithFakeSwiftHelp)
let plannedJobs = try driver.planBuild()
XCTAssertEqual(plannedJobs.count, 1)
let helpJob = plannedJobs.first!
XCTAssertTrue(helpJob.kind == .help)
XCTAssertTrue(helpJob.requiresInPlaceExecution)
XCTAssertTrue(helpJob.tool.name.hasSuffix("swift-help"))
let expected: [Job.ArgTemplate] = [.flag("swift")]
XCTAssertEqual(helpJob.commandLine, expected)
}
do {
var driver = try Driver(args: ["swiftc", "-help-hidden"], env: envWithFakeSwiftHelp)
let plannedJobs = try driver.planBuild()
XCTAssertEqual(plannedJobs.count, 1)
let helpJob = plannedJobs.first!
XCTAssertTrue(helpJob.kind == .help)
XCTAssertTrue(helpJob.requiresInPlaceExecution)
XCTAssertTrue(helpJob.tool.name.hasSuffix("swift-help"))
let expected: [Job.ArgTemplate] = [.flag("swiftc"), .flag("-show-hidden")]
XCTAssertEqual(helpJob.commandLine, expected)
}
}
func testRuntimeCompatibilityVersion() throws {
try assertNoDriverDiagnostics(args: "swiftc", "a.swift", "-runtime-compatibility-version", "none")
}
func testInputFiles() throws {
let driver1 = try Driver(args: ["swiftc", "a.swift", "/tmp/b.swift"])
XCTAssertEqual(driver1.inputFiles,
[ TypedVirtualPath(file: try toPath("a.swift").intern(), type: .swift),
TypedVirtualPath(file: VirtualPath.absolute(try AbsolutePath(validating: "/tmp/b.swift")).intern(), type: .swift) ])
let workingDirectory = localFileSystem.currentWorkingDirectory!.appending(components: "wobble")
let tempDirectory = localFileSystem.currentWorkingDirectory!.appending(components: "tmp")
let driver2 = try Driver(args: ["swiftc", "a.swift", "-working-directory", workingDirectory.pathString, rebase("b.swift", at: tempDirectory)])
XCTAssertEqual(driver2.inputFiles,
[ TypedVirtualPath(file: VirtualPath.absolute(try AbsolutePath(validating: rebase("a.swift", at: workingDirectory))).intern(), type: .swift),
TypedVirtualPath(file: VirtualPath.absolute(try AbsolutePath(validating: rebase("b.swift", at: tempDirectory))).intern(), type: .swift) ])
let driver3 = try Driver(args: ["swift", "-"])
XCTAssertEqual(driver3.inputFiles, [ TypedVirtualPath(file: .standardInput, type: .swift )])
let driver4 = try Driver(args: ["swift", "-", "-working-directory" , "-wobble"])
XCTAssertEqual(driver4.inputFiles, [ TypedVirtualPath(file: .standardInput, type: .swift )])
}
func testDashE() throws {
let fs = localFileSystem
var driver1 = try Driver(args: ["swift", "-e", "print(1)", "-e", "print(2)", "foo/bar.swift", "baz/quux.swift"], fileSystem: fs)
XCTAssertEqual(driver1.inputFiles.count, 1)
XCTAssertEqual(driver1.inputFiles[0].file.basename, "main.swift")
let tempFileContentsForDriver1 = try fs.readFileContents(XCTUnwrap(driver1.inputFiles[0].file.absolutePath))
XCTAssertTrue(tempFileContentsForDriver1.description.hasSuffix("\nprint(1)\nprint(2)\n"))
let plannedJobs = try driver1.planBuild().removingAutolinkExtractJobs()
XCTAssertEqual(plannedJobs.count, 1)
XCTAssertEqual(plannedJobs[0].kind, .interpret)
XCTAssertEqual(plannedJobs[0].commandLine.drop(while: { $0 != .flag("--") }),
[.flag("--"), .flag("foo/bar.swift"), .flag("baz/quux.swift")])
XCTAssertThrowsError(try Driver(args: ["swiftc", "baz/main.swift", "-e", "print(1)"], fileSystem: fs))
}
func testDashEJoined() throws {
let fs = localFileSystem
XCTAssertThrowsError(try Driver(args: ["swift", "-eprint(1)", "foo/bar.swift", "baz/quux.swift"], fileSystem: fs)) { error in
XCTAssertEqual(error as? OptionParseError, .unknownOption(index: 0, argument: "-eprint(1)"))
}
}
func testRecordedInputModificationDates() throws {
guard let cwd = localFileSystem.currentWorkingDirectory else {
fatalError()
}
try withTemporaryDirectory(dir: cwd, removeTreeOnDeinit: true) { path in
let main = path.appending(component: "main.swift")
let util = path.appending(component: "util.swift")
let utilRelative = util.relative(to: cwd)
try localFileSystem.writeFileContents(main, bytes: "print(hi)")
try localFileSystem.writeFileContents(util, bytes: "let hi = \"hi\"")
let mainMDate = try localFileSystem.lastModificationTime(for: .absolute(main))
let utilMDate = try localFileSystem.lastModificationTime(for: .absolute(util))
let driver = try Driver(args: [
"swiftc", main.pathString, utilRelative.pathString,
])
XCTAssertEqual(driver.recordedInputModificationDates, [
.init(file: VirtualPath.absolute(main).intern(), type: .swift) : mainMDate,
.init(file: VirtualPath.absolute(util).intern(), type: .swift) : utilMDate,
])
}
}
func testPrimaryOutputKinds() throws {
let driver1 = try Driver(args: ["swiftc", "foo.swift", "-emit-module"])
XCTAssertEqual(driver1.compilerOutputType, .swiftModule)
XCTAssertEqual(driver1.linkerOutputType, nil)
let driver2 = try Driver(args: ["swiftc", "foo.swift", "-emit-library"])
XCTAssertEqual(driver2.compilerOutputType, .object)
XCTAssertEqual(driver2.linkerOutputType, .dynamicLibrary)
let driver3 = try Driver(args: ["swiftc", "-static", "foo.swift", "-emit-library"])
XCTAssertEqual(driver3.compilerOutputType, .object)
XCTAssertEqual(driver3.linkerOutputType, .staticLibrary)
let driver4 = try Driver(args: ["swiftc", "-lto=llvm-thin", "foo.swift", "-emit-library"])
XCTAssertEqual(driver4.compilerOutputType, .llvmBitcode)
let driver5 = try Driver(args: ["swiftc", "-lto=llvm-full", "foo.swift", "-emit-library"])
XCTAssertEqual(driver5.compilerOutputType, .llvmBitcode)
}
func testLtoOutputModeClash() throws {
let driver1 = try Driver(args: ["swiftc", "foo.swift", "-lto=llvm-full", "-static",
"-emit-library", "-target", "x86_64-apple-macosx10.9"])
XCTAssertEqual(driver1.compilerOutputType, .llvmBitcode)
let driver2 = try Driver(args: ["swiftc", "foo.swift", "-lto=llvm-full",
"-emit-library", "-target", "x86_64-apple-macosx10.9"])
XCTAssertEqual(driver2.compilerOutputType, .llvmBitcode)
let driver3 = try Driver(args: ["swiftc", "foo.swift", "-lto=llvm-full",
"c", "-target", "x86_64-apple-macosx10.9"])
XCTAssertEqual(driver3.compilerOutputType, .llvmBitcode)
let driver4 = try Driver(args: ["swiftc", "foo.swift", "-c","-lto=llvm-full",
"-target", "x86_64-apple-macosx10.9"])
XCTAssertEqual(driver4.compilerOutputType, .llvmBitcode)
let driver5 = try Driver(args: ["swiftc", "foo.swift", "-c","-lto=llvm-full",
"-emit-bc", "-target", "x86_64-apple-macosx10.9"])
XCTAssertEqual(driver5.compilerOutputType, .llvmBitcode)
let driver6 = try Driver(args: ["swiftc", "foo.swift", "-emit-bc", "-c","-lto=llvm-full",
"-target", "x86_64-apple-macosx10.9"])
XCTAssertEqual(driver6.compilerOutputType, .llvmBitcode)
}
func testLtoOutputPath() throws {
do {
var driver = try Driver(args: ["swiftc", "foo.swift", "-lto=llvm-full", "-c", "-target", "x86_64-apple-macosx10.9"])
XCTAssertEqual(driver.compilerOutputType, .llvmBitcode)
XCTAssertEqual(driver.linkerOutputType, nil)
let jobs = try driver.planBuild()
XCTAssertEqual(jobs.count, 1)
XCTAssertEqual(jobs[0].outputs.count, 1)
XCTAssertEqual(jobs[0].outputs[0].file.basename, "foo.bc")
}
do {
var driver = try Driver(args: ["swiftc", "foo.swift", "-lto=llvm-full", "-c", "-target", "x86_64-apple-macosx10.9", "-o", "foo.o"])
XCTAssertEqual(driver.compilerOutputType, .llvmBitcode)
XCTAssertEqual(driver.linkerOutputType, nil)
let jobs = try driver.planBuild()
XCTAssertEqual(jobs.count, 1)
XCTAssertEqual(jobs[0].outputs.count, 1)
XCTAssertEqual(jobs[0].outputs[0].file.basename, "foo.o")
}
}
func testPrimaryOutputKindsDiagnostics() throws {
try assertDriverDiagnostics(args: "swift", "-i") {
$1.expect(.error("the flag '-i' is no longer required and has been removed; use 'swift input-filename'"))
}
}
func testFilePrefixMapInvalidDiagnostic() throws {
try assertDriverDiagnostics(args: "swiftc", "-c", "foo.swift", "-o", "foo.o", "-file-prefix-map", "invalid") {
$1.expect(.error("values for '-file-prefix-map' must be in the format 'original=remapped', but 'invalid' was provided"))
}
}
func testFilePrefixMapMultiplePassToFrontend() throws {
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-file-prefix-map", "foo=bar", "-file-prefix-map", "dog=doggo") { driver in
let jobs = try driver.planBuild()
let commandLine = jobs[0].commandLine
let index = commandLine.firstIndex(of: .flag("-file-prefix-map"))
let lastIndex = commandLine.lastIndex(of: .flag("-file-prefix-map"))
XCTAssertNotNil(index)
XCTAssertNotNil(lastIndex)
XCTAssertNotEqual(index, lastIndex)
XCTAssertEqual(commandLine[index!.advanced(by: 1)], .flag("foo=bar"))
XCTAssertEqual(commandLine[lastIndex!.advanced(by: 1)], .flag("dog=doggo"))
}
}
func testIndexIncludeLocals() throws {
// Make sure `-index-include-locals` is only passed to the frontend when
// requested, not by default.
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-index-store-path", "/tmp/idx") { driver in
let jobs = try driver.planBuild()
let commandLine = jobs[0].commandLine
XCTAssertTrue(commandLine.contains(.flag("-index-store-path")))
XCTAssertFalse(commandLine.contains(.flag("-index-include-locals")))
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-index-store-path", "/tmp/idx", "-index-include-locals") { driver in
let jobs = try driver.planBuild()
let commandLine = jobs[0].commandLine
XCTAssertTrue(commandLine.contains(.flag("-index-store-path")))
XCTAssertTrue(commandLine.contains(.flag("-index-include-locals")))
}
}
func testMultiThreadingOutputs() throws {
try assertDriverDiagnostics(args: "swiftc", "-c", "foo.swift", "bar.swift", "-o", "bar.ll", "-o", "foo.ll", "-num-threads", "2", "-whole-module-optimization") {
$1.expect(.error("cannot specify -o when generating multiple output files"))
}
try assertDriverDiagnostics(args: "swiftc", "-c", "foo.swift", "bar.swift", "-o", "bar.ll", "-o", "foo.ll", "-num-threads", "0") {
$1.expect(.error("cannot specify -o when generating multiple output files"))
}
}
func testBaseOutputPaths() throws {
// Test the combination of -c and -o includes the base output path.
do {
var driver = try Driver(args: ["swiftc", "-c", "foo.swift", "-o", "/some/output/path/bar.o"])
let plannedJobs = try driver.planBuild().removingAutolinkExtractJobs()
XCTAssertEqual(plannedJobs.count, 1)
XCTAssertEqual(plannedJobs[0].kind, .compile)
XCTAssertTrue(plannedJobs[0].commandLine.contains(.path(try VirtualPath(path: "/some/output/path/bar.o"))))
}
do {
var driver = try Driver(args: ["swiftc", "-emit-sil", "foo.swift", "-o", "/some/output/path/bar.sil"])
let plannedJobs = try driver.planBuild()
XCTAssertEqual(plannedJobs.count, 1)
XCTAssertEqual(plannedJobs[0].kind, .compile)
XCTAssertTrue(plannedJobs[0].commandLine.contains(.path(try VirtualPath(path: "/some/output/path/bar.sil"))))
}
do {
// If no output is specified, verify we print to stdout for textual formats.
var driver = try Driver(args: ["swiftc", "-emit-assembly", "foo.swift"])
let plannedJobs = try driver.planBuild()
XCTAssertEqual(plannedJobs.count, 1)
XCTAssertEqual(plannedJobs[0].kind, .compile)
XCTAssertTrue(plannedJobs[0].commandLine.contains(.path(.standardOutput)))
}
}
func testMultithreading() throws {
XCTAssertNil(try Driver(args: ["swiftc"]).numParallelJobs)
XCTAssertEqual(try Driver(args: ["swiftc", "-j", "4"]).numParallelJobs, 4)
var env = ProcessEnv.vars
env["SWIFTC_MAXIMUM_DETERMINISM"] = "1"
XCTAssertEqual(try Driver(args: ["swiftc", "-j", "4"], env: env).numParallelJobs, 1)
}
func testMultithreadingDiagnostics() throws {
try assertDriverDiagnostics(args: "swiftc", "-j", "0") {
$1.expect(.error("invalid value '0' in '-j'"))
}
var env = ProcessEnv.vars
env["SWIFTC_MAXIMUM_DETERMINISM"] = "1"
try assertDriverDiagnostics(args: "swiftc", "-j", "8", env: env) {
$1.expect(.remark("SWIFTC_MAXIMUM_DETERMINISM overriding -j"))
}
}
func testDebugSettings() throws {
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-emit-module") { driver in
XCTAssertNil(driver.debugInfo.level)
XCTAssertEqual(driver.debugInfo.format, .dwarf)
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-emit-module", "-g") { driver in
XCTAssertEqual(driver.debugInfo.level, .astTypes)
XCTAssertEqual(driver.debugInfo.format, .dwarf)
}
try assertNoDriverDiagnostics(args: "swiftc", "-g", "foo.swift", "-gline-tables-only") { driver in
XCTAssertEqual(driver.debugInfo.level, .lineTables)
XCTAssertEqual(driver.debugInfo.format, .dwarf)
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-debug-prefix-map", "foo=bar=baz", "-debug-prefix-map", "qux=") { driver in
let jobs = try driver.planBuild()
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-debug-prefix-map")))
XCTAssertTrue(jobs[0].commandLine.contains(.flag("foo=bar=baz")))
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-debug-prefix-map")))
XCTAssertTrue(jobs[0].commandLine.contains(.flag("qux=")))
}
do {
var env = ProcessEnv.vars
env["SWIFT_DRIVER_TESTS_ENABLE_EXEC_PATH_FALLBACK"] = "1"
env["RC_DEBUG_PREFIX_MAP"] = "old=new"
var driver = try Driver(args: ["swiftc", "-c", "-target", "arm64-apple-macos12", "foo.swift"], env: env)
let jobs = try driver.planBuild()
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-debug-prefix-map")))
XCTAssertTrue(jobs[0].commandLine.contains(.flag("old=new")))
}
try assertDriverDiagnostics(args: "swiftc", "foo.swift", "-debug-prefix-map", "foo", "-debug-prefix-map", "bar") {
$1.expect(.error("values for '-debug-prefix-map' must be in the format 'original=remapped', but 'foo' was provided"))
$1.expect(.error("values for '-debug-prefix-map' must be in the format 'original=remapped', but 'bar' was provided"))
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-emit-module", "-g", "-debug-info-format=codeview") { driver in
XCTAssertEqual(driver.debugInfo.level, .astTypes)
XCTAssertEqual(driver.debugInfo.format, .codeView)
let jobs = try driver.planBuild()
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-debug-info-format=codeview")))
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-emit-module", "-g", "-debug-info-format=dwarf") { driver in
XCTAssertEqual(driver.debugInfo.format, .dwarf)
let jobs = try driver.planBuild()
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-debug-info-format=dwarf")))
}
try assertDriverDiagnostics(args: "swiftc", "foo.swift", "-emit-module", "-debug-info-format=dwarf") {
$1.expect(.error("option '-debug-info-format=' is missing a required argument (-g)"))
}
try assertDriverDiagnostics(args: "swiftc", "foo.swift", "-emit-module", "-g", "-debug-info-format=notdwarf") {
$1.expect(.error("invalid value 'notdwarf' in '-debug-info-format='"))
}
try assertDriverDiagnostics(args: "swiftc", "foo.swift", "-emit-module", "-gdwarf-types", "-debug-info-format=codeview") {
$1.expect(.error("argument '-debug-info-format=codeview' is not allowed with '-gdwarf-types'"))
}
try assertDriverDiagnostics(args: "swiftc", "foo.swift", "-emit-module", "-dwarf-version=0") {
$1.expect(.error("invalid value '0' in '-dwarf-version="))
}
try assertDriverDiagnostics(args: "swiftc", "foo.swift", "-emit-module", "-dwarf-version=6") {
$1.expect(.error("invalid value '6' in '-dwarf-version="))
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-g", "-c", "-file-compilation-dir", ".") { driver in
let jobs = try driver.planBuild()
let path = try VirtualPath.intern(path: ".")
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-file-compilation-dir")))
XCTAssertTrue(jobs[0].commandLine.contains(.path(VirtualPath.lookup(path))))
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-g", "-c", "-working-directory", "/tmp") { driver in
let jobs = try driver.planBuild()
let path = try VirtualPath.intern(path: "/tmp")
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-file-compilation-dir")))
XCTAssertTrue(jobs[0].commandLine.contains(.path(VirtualPath.lookup(path))))
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-g", "-c") { driver in
let jobs = try driver.planBuild()
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-file-compilation-dir")))
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-c", "-file-compilation-dir", ".") { driver in
let jobs = try driver.planBuild()
XCTAssertFalse(jobs[0].commandLine.contains(.flag("-file-compilation-dir")))
}
}
func testDwarfVersionSetting() throws {
let driver = try Driver(args: ["swiftc", "foo.swift"])
guard driver.isFrontendArgSupported(.dwarfVersion) else {
throw XCTSkip("Skipping: compiler does not support '-dwarf-version'")
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-emit-module", "-g", "-debug-info-format=dwarf", "-dwarf-version=4") { driver in
let jobs = try driver.planBuild()
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-dwarf-version=4")))
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-g", "-c", "-target", "x86_64-apple-macosx10.10") { driver in
let jobs = try driver.planBuild()
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-dwarf-version=2")))
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-g", "-c", "-target", "x86_64-apple-macosx10.11") { driver in
let jobs = try driver.planBuild()
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-dwarf-version=4")))
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-g", "-c", "-target", "x86_64-apple-macos14.0") { driver in
let jobs = try driver.planBuild()
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-dwarf-version=4")))
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-g", "-c", "-target", "arm64-apple-ios8.0") { driver in
let jobs = try driver.planBuild()
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-dwarf-version=2")))
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-g", "-c", "-target", "arm64-apple-ios9.0") { driver in
let jobs = try driver.planBuild()
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-dwarf-version=4")))
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-g", "-c", "-target", "x86_64-apple-ios17-macabi") { driver in
let jobs = try driver.planBuild()
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-dwarf-version=4")))
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-g", "-c", "-target", "arm64-apple-tvos17.0") { driver in
let jobs = try driver.planBuild()
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-dwarf-version=4")))
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-g", "-c", "-target", "arm64_32-apple-watchos10.0") { driver in
let jobs = try driver.planBuild()
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-dwarf-version=4")))
}
// TODO: Enable once compiler support lands
// try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-g", "-c", "-target", "arm64-apple-xros1.0-simulator") { driver in
// let jobs = try driver.planBuild()
// XCTAssertTrue(jobs[0].commandLine.contains(.flag("-dwarf-version=4")))
// }
// try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-g", "-c", "-target", "arm64-apple-xros1.0") { driver in
// let jobs = try driver.planBuild()
// XCTAssertTrue(jobs[0].commandLine.contains(.flag("-dwarf-version=4")))
// }
}
func testCoverageSettings() throws {
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-coverage-prefix-map", "foo=bar=baz", "-coverage-prefix-map", "qux=") { driver in
let jobs = try driver.planBuild()
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-coverage-prefix-map")))
XCTAssertTrue(jobs[0].commandLine.contains(.flag("foo=bar=baz")))
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-coverage-prefix-map")))
XCTAssertTrue(jobs[0].commandLine.contains(.flag("qux=")))
}
try assertDriverDiagnostics(args: "swiftc", "foo.swift", "-coverage-prefix-map", "foo", "-coverage-prefix-map", "bar") {
$1.expect(.error("values for '-coverage-prefix-map' must be in the format 'original=remapped', but 'foo' was provided"))
$1.expect(.error("values for '-coverage-prefix-map' must be in the format 'original=remapped', but 'bar' was provided"))
}
}
func testHermeticSealAtLink() throws {
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-experimental-hermetic-seal-at-link", "-lto=llvm-full") { driver in
let jobs = try driver.planBuild()
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-enable-llvm-vfe")))
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-enable-llvm-wme")))
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-conditional-runtime-records")))
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-internalize-at-link")))
XCTAssertTrue(jobs[0].commandLine.contains(.flag("-lto=llvm-full")))
}
try assertDriverDiagnostics(args: "swiftc", "foo.swift", "-experimental-hermetic-seal-at-link") {
$1.expect(.error("-experimental-hermetic-seal-at-link requires -lto=llvm-full or -lto=llvm-thin"))
}
try assertDriverDiagnostics(args: "swiftc", "foo.swift", "-experimental-hermetic-seal-at-link", "-lto=llvm-full", "-enable-library-evolution") {
$1.expect(.error("Cannot use -experimental-hermetic-seal-at-link with -enable-library-evolution"))
}
}
func testABIDescriptorOnlyWhenEnableEvolution() throws {
let flagName = "-empty-abi-descriptor"
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift") { driver in
let jobs = try driver.planBuild()
let command = jobs[0].commandLine
XCTAssertTrue(command.contains(.flag(flagName)))
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-enable-library-evolution") { driver in
let jobs = try driver.planBuild()
let command = jobs[0].commandLine
XCTAssertFalse(command.contains(.flag(flagName)))
}
}
func testModuleSettings() throws {
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift") { driver in
XCTAssertNil(driver.moduleOutputInfo.output)
XCTAssertEqual(driver.moduleOutputInfo.name, "foo")
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-g") { driver in
let pathHandle = driver.moduleOutputInfo.output?.outputPath
XCTAssertTrue(matchTemporary(VirtualPath.lookup(pathHandle!), "foo.swiftmodule"))
XCTAssertEqual(driver.moduleOutputInfo.name, "foo")
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "-module-name", "wibble", "bar.swift", "-g") { driver in
let pathHandle = driver.moduleOutputInfo.output?.outputPath
XCTAssertTrue(matchTemporary(VirtualPath.lookup(pathHandle!), "wibble.swiftmodule"))
XCTAssertEqual(driver.moduleOutputInfo.name, "wibble")
}
try assertNoDriverDiagnostics(args: "swiftc", "-emit-module", "foo.swift", "-module-name", "wibble", "bar.swift") { driver in
XCTAssertEqual(driver.moduleOutputInfo.output, .topLevel(try toPath("wibble.swiftmodule").intern()))
XCTAssertEqual(driver.moduleOutputInfo.name, "wibble")
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "bar.swift") { driver in
XCTAssertNil(driver.moduleOutputInfo.output)
XCTAssertEqual(driver.moduleOutputInfo.name, "main")
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "bar.swift", "-emit-library", "-o", "libWibble.so") { driver in
XCTAssertEqual(driver.moduleOutputInfo.name, "Wibble")
}
try assertDriverDiagnostics(args: "swiftc", "foo.swift", "bar.swift", "-emit-library", "-o", "libWibble.so", "-module-name", "Swift") {
$1.expect(.error("module name \"Swift\" is reserved for the standard library"))
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "bar.swift", "-emit-module", "-emit-library", "-o", "some/dir/libFoo.so", "-module-name", "MyModule") { driver in
XCTAssertEqual(driver.moduleOutputInfo.output, .topLevel(try toPath("some/dir/MyModule.swiftmodule").intern()))
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "bar.swift", "-emit-module", "-emit-library", "-o", "/", "-module-name", "MyModule") { driver in
XCTAssertEqual(driver.moduleOutputInfo.output, .topLevel(try VirtualPath.intern(path: "/MyModule.swiftmodule")))
}
try assertNoDriverDiagnostics(args: "swiftc", "foo.swift", "bar.swift", "-emit-module", "-emit-library", "-o", "../../some/other/dir/libFoo.so", "-module-name", "MyModule") { driver in
XCTAssertEqual(driver.moduleOutputInfo.output, .topLevel(try toPath("../../some/other/dir/MyModule.swiftmodule").intern()))
}
}
func testModuleNameFallbacks() throws {
try assertNoDriverDiagnostics(args: "swiftc", "file.foo.swift")
try assertNoDriverDiagnostics(args: "swiftc", ".foo.swift")
try assertNoDriverDiagnostics(args: "swiftc", "foo-bar.swift")
}
func testPackageNameFlag() throws {
// -package-name com.perf.my-pkg (valid string)
try assertNoDriverDiagnostics(args: "swiftc", "file.swift", "bar.swift", "-module-name", "MyModule", "-package-name", "com.perf.my-pkg", "-emit-module", "-emit-module-path", "../../path/to/MyModule.swiftmodule") { driver in
XCTAssertEqual(driver.packageName, "com.perf.my-pkg")
XCTAssertEqual(driver.moduleOutputInfo.output, .topLevel(try toPath("../../path/to/MyModule.swiftmodule").intern()))
}
// -package-name is not passed and file doesn't contain `package` decls; should pass
try assertNoDriverDiagnostics(args: "swiftc", "file.swift") { driver in
XCTAssertNil(driver.packageName)
XCTAssertEqual(driver.moduleOutputInfo.name, "file")
}
// -package-name 123a!@#$ (valid string)
try assertNoDriverDiagnostics(args: "swiftc", "file.swift", "-module-name", "Foo", "-package-name", "123a!@#$") { driver in
XCTAssertEqual(driver.packageName, "123a!@#$")
}
// -package-name input is an empty string
try assertDriverDiagnostics(args: "swiftc", "file.swift", "-package-name", "") {
$1.expect(.error("package-name is empty"))
}
}
func testStandardCompileJobs() throws {
var driver1 = try Driver(args: ["swiftc", "foo.swift", "bar.swift", "-module-name", "Test"])
let plannedJobs = try driver1.planBuild().removingAutolinkExtractJobs()
XCTAssertEqual(plannedJobs.count, 3)
XCTAssertEqual(plannedJobs[0].outputs.count, 1)
XCTAssertTrue(matchTemporary(plannedJobs[0].outputs.first!.file, "foo.o"))
XCTAssertEqual(plannedJobs[1].outputs.count, 1)
XCTAssertTrue(matchTemporary(plannedJobs[1].outputs.first!.file, "bar.o"))
XCTAssertTrue(plannedJobs[2].tool.name.contains(executableName("clang")))
XCTAssertEqual(plannedJobs[2].outputs.count, 1)
XCTAssertEqual(plannedJobs[2].outputs.first!.file, try toPath(executableName("Test")))
// Forwarding of arguments.
let workingDirectory = localFileSystem.currentWorkingDirectory!.appending(components: "tmp")
var driver2 = try Driver(args: ["swiftc", "-color-diagnostics", "foo.swift", "bar.swift", "-working-directory", workingDirectory.pathString, "-api-diff-data-file", "diff.txt", "-Xfrontend", "-HI", "-no-color-diagnostics", "-g"])
let plannedJobs2 = try driver2.planBuild()
let compileJob = try plannedJobs2.findJob(.compile)
XCTAssert(compileJob.commandLine.contains(Job.ArgTemplate.path(.absolute(try AbsolutePath(validating: rebase("diff.txt", at: workingDirectory))))))
XCTAssert(compileJob.commandLine.contains(.flag("-HI")))
XCTAssert(!compileJob.commandLine.contains(.flag("-Xfrontend")))
XCTAssert(compileJob.commandLine.contains(.flag("-no-color-diagnostics")))
XCTAssert(!compileJob.commandLine.contains(.flag("-color-diagnostics")))
XCTAssert(compileJob.commandLine.contains(.flag("-target")))
XCTAssert(compileJob.commandLine.contains(.flag(driver2.targetTriple.triple)))
XCTAssert(compileJob.commandLine.contains(.flag("-enable-anonymous-context-mangled-names")))
var driver3 = try Driver(args: ["swiftc", "foo.swift", "bar.swift", "-emit-library", "-module-name", "Test"])
let plannedJobs3 = try driver3.planBuild()
XCTAssertTrue(plannedJobs3[0].commandLine.contains(.flag("-module-name")))
XCTAssertTrue(plannedJobs3[0].commandLine.contains(.flag("Test")))
XCTAssertTrue(plannedJobs3[0].commandLine.contains(.flag("-parse-as-library")))
}
func testModuleNaming() throws {
XCTAssertEqual(try Driver(args: ["swiftc", "foo.swift"]).moduleOutputInfo.name, "foo")
XCTAssertEqual(try Driver(args: ["swiftc", "foo.swift", "-o", "a.out"]).moduleOutputInfo.name, "a")
// This is silly, but necessary for compatibility with the integrated driver.
XCTAssertEqual(try Driver(args: ["swiftc", "foo.swift", "-o", "a.out.optimized"]).moduleOutputInfo.name, "main")
XCTAssertEqual(try Driver(args: ["swiftc", "foo.swift", "-o", "a.out.optimized", "-module-name", "bar"]).moduleOutputInfo.name, "bar")
XCTAssertEqual(try Driver(args: ["swiftc", "foo.swift", "-o", "+++.out"]).moduleOutputInfo.name, "main")
XCTAssertEqual(try Driver(args: ["swift"]).moduleOutputInfo.name, "REPL")
XCTAssertEqual(try Driver(args: ["swiftc", "foo.swift", "-emit-library", "-o", "libBaz.dylib"]).moduleOutputInfo.name, "Baz")
try assertDriverDiagnostics(
args: ["swiftc", "foo.swift", "-module-name", "", "file.foo.swift"]
) {
$1.expect(.error("module name \"\" is not a valid identifier"))
}
try assertDriverDiagnostics(
args: ["swiftc", "foo.swift", "-module-name", "123", "file.foo.swift"]
) {
$1.expect(.error("module name \"123\" is not a valid identifier"))
}
}
func testEmitModuleSeparatelyDiagnosticPath() throws {
try withTemporaryFile { fileMapFile in
let outputMapContents: ByteString = """
{
"": {
"diagnostics": "/tmp/foo/.build/x86_64-apple-macosx/debug/foo.build/master.dia",
"emit-module-diagnostics": "/tmp/foo/.build/x86_64-apple-macosx/debug/foo.build/master.emit-module.dia"
},
"foo.swift": {
"diagnostics": "/tmp/foo/.build/x86_64-apple-macosx/debug/foo.build/foo.dia"
}
}
"""
try localFileSystem.writeFileContents(fileMapFile.path, bytes: outputMapContents)
// Plain (batch/single-file) compile
do {
var driver = try Driver(args: ["swiftc", "foo.swift", "-emit-module", "-output-file-map", fileMapFile.path.pathString,
"-emit-library", "-module-name", "Test", "-serialize-diagnostics"])
let plannedJobs = try driver.planBuild().removingAutolinkExtractJobs()
XCTAssertEqual(plannedJobs.count, 3)
XCTAssertTrue(plannedJobs[0].kind == .emitModule)
XCTAssertTrue(plannedJobs[1].kind == .compile)
XCTAssertTrue(plannedJobs[2].kind == .link)
XCTAssertTrue(plannedJobs[0].commandLine.contains(subsequence: ["-serialize-diagnostics-path", .path(.absolute(try .init(validating: "/tmp/foo/.build/x86_64-apple-macosx/debug/foo.build/master.emit-module.dia")))]))
XCTAssertTrue(plannedJobs[1].commandLine.contains(subsequence: ["-serialize-diagnostics-path", .path(.absolute(try .init(validating: "/tmp/foo/.build/x86_64-apple-macosx/debug/foo.build/foo.dia")))]))
}
// WMO
do {
var driver = try Driver(args: ["swiftc", "foo.swift", "-whole-module-optimization", "-emit-module",
"-output-file-map", fileMapFile.path.pathString, "-disable-cmo",
"-emit-library", "-module-name", "Test", "-serialize-diagnostics"])
let plannedJobs = try driver.planBuild().removingAutolinkExtractJobs()
XCTAssertEqual(plannedJobs.count, 3)
XCTAssertTrue(plannedJobs[0].kind == .compile)
XCTAssertTrue(plannedJobs[1].kind == .emitModule)
XCTAssertTrue(plannedJobs[2].kind == .link)
XCTAssertTrue(plannedJobs[0].commandLine.contains(subsequence: ["-serialize-diagnostics-path", .path(.absolute(try .init(validating: "/tmp/foo/.build/x86_64-apple-macosx/debug/foo.build/master.dia")))]))
XCTAssertTrue(plannedJobs[1].commandLine.contains(subsequence: ["-serialize-diagnostics-path", .path(.absolute(try .init(validating: "/tmp/foo/.build/x86_64-apple-macosx/debug/foo.build/master.emit-module.dia")))]))
}
}
}
func testEmitModuleSeparatelyDependenciesPath() throws {
try withTemporaryFile { fileMapFile in
let outputMapContents: ByteString = """
{
"": {
"dependencies": "/tmp/foo/.build/x86_64-apple-macosx/debug/foo.build/master.d",
"emit-module-dependencies": "/tmp/foo/.build/x86_64-apple-macosx/debug/foo.build/master.emit-module.d"
},
"foo.swift": {
"dependencies": "/tmp/foo/.build/x86_64-apple-macosx/debug/foo.build/foo.d"
}
}
"""
try localFileSystem.writeFileContents(fileMapFile.path, bytes: outputMapContents)
// Plain (batch/single-file) compile
do {
var driver = try Driver(args: ["swiftc", "foo.swift", "-emit-module", "-output-file-map", fileMapFile.path.pathString,
"-emit-library", "-module-name", "Test", "-emit-dependencies"])
let plannedJobs = try driver.planBuild().removingAutolinkExtractJobs()
XCTAssertEqual(plannedJobs.count, 3)
XCTAssertTrue(plannedJobs[0].kind == .emitModule)
XCTAssertTrue(plannedJobs[1].kind == .compile)
XCTAssertTrue(plannedJobs[2].kind == .link)
XCTAssertTrue(plannedJobs[0].commandLine.contains(subsequence: ["-emit-dependencies-path", .path(.absolute(try .init(validating: "/tmp/foo/.build/x86_64-apple-macosx/debug/foo.build/master.emit-module.d")))]))
XCTAssertTrue(plannedJobs[1].commandLine.contains(subsequence: ["-emit-dependencies-path", .path(.absolute(try .init(validating: "/tmp/foo/.build/x86_64-apple-macosx/debug/foo.build/foo.d")))]))
}
// WMO
do {
var driver = try Driver(args: ["swiftc", "foo.swift", "-whole-module-optimization", "-emit-module",
"-output-file-map", fileMapFile.path.pathString, "-disable-cmo",
"-emit-library", "-module-name", "Test", "-emit-dependencies"])
let plannedJobs = try driver.planBuild().removingAutolinkExtractJobs()
XCTAssertEqual(plannedJobs.count, 3)
XCTAssertTrue(plannedJobs[0].kind == .compile)
XCTAssertTrue(plannedJobs[1].kind == .emitModule)
XCTAssertTrue(plannedJobs[2].kind == .link)
XCTAssertTrue(plannedJobs[0].commandLine.contains(subsequence: ["-emit-dependencies-path", .path(.absolute(try .init(validating: "/tmp/foo/.build/x86_64-apple-macosx/debug/foo.build/master.d")))]))
XCTAssertTrue(plannedJobs[1].commandLine.contains(subsequence: ["-emit-dependencies-path", .path(.absolute(try .init(validating: "/tmp/foo/.build/x86_64-apple-macosx/debug/foo.build/master.emit-module.d")))]))
}
}
}
func testOutputFileMapLoading() throws {
let objroot: AbsolutePath =
try AbsolutePath(validating: "/tmp/foo/.build/x86_64-apple-macosx/debug/foo.build")
let contents = ByteString("""
{
"": {
"swift-dependencies": "\(objroot.appending(components: "master.swiftdeps").nativePathString(escaped: true))"
},
"/tmp/foo/Sources/foo/foo.swift": {
"dependencies": "\(objroot.appending(components: "foo.d").nativePathString(escaped: true))",
"object": "\(objroot.appending(components: "foo.swift.o").nativePathString(escaped: true))",
"swiftmodule": "\(objroot.appending(components: "foo~partial.swiftmodule").nativePathString(escaped: true))",
"swift-dependencies": "\(objroot.appending(components: "foo.swiftdeps").nativePathString(escaped: true))"
}
}
""".utf8)
try withTemporaryFile { file in
try assertNoDiagnostics { diags in
try localFileSystem.writeFileContents(file.path, bytes: contents)
let outputFileMap = try OutputFileMap.load(fileSystem: localFileSystem, file: .absolute(file.path), diagnosticEngine: diags)
let object = try outputFileMap.getOutput(inputFile: VirtualPath.intern(path: "/tmp/foo/Sources/foo/foo.swift"), outputType: .object)
XCTAssertEqual(VirtualPath.lookup(object).name, objroot.appending(components: "foo.swift.o").pathString)
let masterDeps = try outputFileMap.getOutput(inputFile: VirtualPath.intern(path: ""), outputType: .swiftDeps)
XCTAssertEqual(VirtualPath.lookup(masterDeps).name, objroot.appending(components: "master.swiftdeps").pathString)
}
}
}
func testFindingObjectPathFromllvmBCPath() throws {
let objroot: AbsolutePath =
try AbsolutePath(validating: "/tmp/foo/.build/x86_64-apple-macosx/debug/foo.build")
let contents = ByteString(
"""
{
"": {
"swift-dependencies": "\(objroot.appending(components: "master.swiftdeps").nativePathString(escaped: true))"
},
"/tmp/foo/Sources/foo/foo.swift": {