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ExplicitModuleBuildTests.swift
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ExplicitModuleBuildTests.swift
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//===------- ExplicitModuleBuildTests.swift - Swift Driver Tests ----------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2020 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
//
//===----------------------------------------------------------------------===//
@_spi(Testing) import SwiftDriver
import SwiftDriverExecution
import TSCBasic
import XCTest
import TestUtilities
private var testInputsPath: AbsolutePath = {
var root: AbsolutePath = AbsolutePath(#file)
while root.basename != "Tests" {
root = root.parentDirectory
}
return root.parentDirectory.appending(component: "TestInputs")
}()
/// Check that an explicit module build job contains expected inputs and options
private func checkExplicitModuleBuildJob(job: Job,
moduleId: ModuleDependencyId,
dependencyGraph: InterModuleDependencyGraph)
throws {
let moduleInfo = try dependencyGraph.moduleInfo(of: moduleId)
switch moduleInfo.details {
case .swift(let swiftModuleDetails):
XCTAssertTrue(job.commandLine.contains(.flag(String("-disable-implicit-swift-modules"))))
let moduleInterfacePath =
TypedVirtualPath(file: swiftModuleDetails.moduleInterfacePath!.path,
type: .swiftInterface)
XCTAssertEqual(job.kind, .compileModuleFromInterface)
XCTAssertTrue(job.inputs.contains(moduleInterfacePath))
if let compiledCandidateList = swiftModuleDetails.compiledModuleCandidates {
for compiledCandidate in compiledCandidateList {
let candidatePath = compiledCandidate.path
let typedCandidatePath = TypedVirtualPath(file: candidatePath,
type: .swiftModule)
XCTAssertTrue(job.inputs.contains(typedCandidatePath))
XCTAssertTrue(job.commandLine.contains(.flag(VirtualPath.lookup(candidatePath).description)))
}
XCTAssertTrue(job.commandLine.filter {$0 == .flag("-candidate-module-file")}.count == compiledCandidateList.count)
}
case .clang(let clangModuleDetails):
let moduleMapPath =
TypedVirtualPath(file: clangModuleDetails.moduleMapPath.path,
type: .clangModuleMap)
XCTAssertEqual(job.kind, .generatePCM)
XCTAssertEqual(job.description, "Compiling Clang module \(moduleId.moduleName)")
XCTAssertTrue(job.inputs.contains(moduleMapPath))
case .swiftPrebuiltExternal(_):
XCTFail("Unexpected prebuilt external module dependency found.")
case .swiftPlaceholder(_):
XCTFail("Placeholder dependency found.")
}
// Ensure the frontend was prohibited from doing implicit module builds
XCTAssertTrue(job.commandLine.contains(.flag(String("-fno-implicit-modules"))))
try checkExplicitModuleBuildJobDependencies(job: job,
moduleInfo: moduleInfo,
dependencyGraph: dependencyGraph)
}
/// Checks that the build job for the specified module contains the required options and inputs
/// to build all of its dependencies explicitly
private func checkExplicitModuleBuildJobDependencies(job: Job,
moduleInfo : ModuleInfo,
dependencyGraph: InterModuleDependencyGraph
) throws {
var validateModuleMapCommandLineDependency: (ModuleDependencyId, ModuleInfo) throws -> Void = { dependencyId, dependencyInfo in
// Load the dependency JSON and verify this dependency was encoded correctly
let explicitDepsFlag =
SwiftDriver.Job.ArgTemplate.flag(String("-explicit-swift-module-map-file"))
XCTAssert(job.commandLine.contains(explicitDepsFlag))
let jsonDepsPathIndex = job.commandLine.firstIndex(of: explicitDepsFlag)
let jsonDepsPathArg = job.commandLine[jsonDepsPathIndex! + 1]
guard case .path(let jsonDepsPath) = jsonDepsPathArg else {
XCTFail("No JSON dependency file path found.")
return
}
guard case let .temporaryWithKnownContents(_, contents) = jsonDepsPath else {
XCTFail("Unexpected path type")
return
}
let dependencyInfoList = try JSONDecoder().decode(Array<SwiftModuleArtifactInfo>.self,
from: contents)
let dependencyArtifacts =
dependencyInfoList.first(where:{ $0.moduleName == dependencyId.moduleName })
XCTAssertEqual(dependencyArtifacts!.modulePath, dependencyInfo.modulePath)
}
let validateSwiftCommandLineDependency: (ModuleDependencyId, ModuleInfo) -> Void = { dependencyId, dependencyInfo in
let inputModulePath = dependencyInfo.modulePath.path
XCTAssertTrue(job.inputs.contains(TypedVirtualPath(file: inputModulePath, type: .swiftModule)))
XCTAssertTrue(job.commandLine.contains(
.flag(String("-swift-module-file=\(dependencyId.moduleName)=\(inputModulePath.description)"))))
}
let validateClangCommandLineDependency: (ModuleDependencyId,
ModuleInfo,
ClangModuleDetails) -> Void = { dependencyId, dependencyInfo, clangDependencyDetails in
let clangDependencyModulePathString = dependencyInfo.modulePath.path
let clangDependencyModulePath =
TypedVirtualPath(file: clangDependencyModulePathString, type: .pcm)
let clangDependencyModuleMapPath =
TypedVirtualPath(file: clangDependencyDetails.moduleMapPath.path,
type: .clangModuleMap)
XCTAssertTrue(job.inputs.contains(clangDependencyModulePath))
XCTAssertTrue(job.inputs.contains(clangDependencyModuleMapPath))
XCTAssertTrue(job.commandLine.contains(
.flag(String("-fmodule-file=\(dependencyId.moduleName)=\(clangDependencyModulePathString)"))))
XCTAssertTrue(job.commandLine.contains(
.flag(String("-fmodule-map-file=\(clangDependencyDetails.moduleMapPath.path.description)"))))
}
for dependencyId in moduleInfo.directDependencies! {
let dependencyInfo = try dependencyGraph.moduleInfo(of: dependencyId)
switch dependencyInfo.details {
case .swift(_):
fallthrough
case .swiftPrebuiltExternal(_):
validateSwiftCommandLineDependency(dependencyId, dependencyInfo)
case .clang(let clangDependencyDetails):
validateClangCommandLineDependency(dependencyId, dependencyInfo, clangDependencyDetails)
case .swiftPlaceholder(_):
XCTFail("Placeholder dependency found.")
}
// Ensure all transitive dependencies got added as well.
for transitiveDependencyId in dependencyInfo.directDependencies! {
try checkExplicitModuleBuildJobDependencies(job: job,
moduleInfo: try dependencyGraph.moduleInfo(of: transitiveDependencyId),
dependencyGraph: dependencyGraph)
}
}
}
/// Test that for the given JSON module dependency graph, valid jobs are generated
final class ExplicitModuleBuildTests: XCTestCase {
func testModuleDependencyBuildCommandGeneration() throws {
do {
var driver = try Driver(args: ["swiftc", "-explicit-module-build",
"-module-name", "testModuleDependencyBuildCommandGeneration",
"test.swift"])
let moduleDependencyGraph =
try JSONDecoder().decode(
InterModuleDependencyGraph.self,
from: ModuleDependenciesInputs.fastDependencyScannerOutput.data(using: .utf8)!)
driver.explicitDependencyBuildPlanner =
try ExplicitDependencyBuildPlanner(dependencyGraph: moduleDependencyGraph,
toolchain: driver.toolchain)
let modulePrebuildJobs =
try driver.explicitDependencyBuildPlanner!.generateExplicitModuleDependenciesBuildJobs()
XCTAssertEqual(modulePrebuildJobs.count, 4)
for job in modulePrebuildJobs {
XCTAssertEqual(job.outputs.count, 1)
XCTAssertFalse(driver.isExplicitMainModuleJob(job: job))
switch (job.outputs[0].file) {
case .relative(RelativePath("SwiftShims.pcm")):
try checkExplicitModuleBuildJob(job: job,
moduleId: .clang("SwiftShims"),
dependencyGraph: moduleDependencyGraph)
case .relative(RelativePath("c_simd.pcm")):
try checkExplicitModuleBuildJob(job: job,
moduleId: .clang("c_simd"),
dependencyGraph: moduleDependencyGraph)
case .relative(RelativePath("Swift.swiftmodule")):
try checkExplicitModuleBuildJob(job: job,
moduleId: .swift("Swift"),
dependencyGraph: moduleDependencyGraph)
case .relative(RelativePath("_Concurrency.swiftmodule")):
try checkExplicitModuleBuildJob(job: job,
moduleId: .swift("_Concurrency"),
dependencyGraph: moduleDependencyGraph)
case .relative(RelativePath("_StringProcessing.swiftmodule")):
try checkExplicitModuleBuildJob(job: job,
moduleId: .swift("_StringProcessing"),
dependencyGraph: moduleDependencyGraph)
case .relative(RelativePath("SwiftOnoneSupport.swiftmodule")):
try checkExplicitModuleBuildJob(job: job,
moduleId: .swift("SwiftOnoneSupport"),
dependencyGraph: moduleDependencyGraph)
default:
XCTFail("Unexpected module dependency build job output: \(job.outputs[0].file)")
}
}
}
}
func testModuleDependencyBuildCommandGenerationWithExternalFramework() throws {
do {
let externalDetails: ExternalTargetModuleDetailsMap =
[.swiftPrebuiltExternal("A"): ExternalTargetModuleDetails(path: AbsolutePath("/tmp/A.swiftmodule"),
isFramework: true),
.swiftPrebuiltExternal("K"): ExternalTargetModuleDetails(path: AbsolutePath("/tmp/K.swiftmodule"),
isFramework: true),
.swiftPrebuiltExternal("simpleTestModule"): ExternalTargetModuleDetails(path: AbsolutePath("/tmp/simpleTestModule.swiftmodule"),
isFramework: true)]
var driver = try Driver(args: ["swiftc", "-explicit-module-build",
"-module-name", "simpleTestModule",
"test.swift"])
var moduleDependencyGraph =
try JSONDecoder().decode(
InterModuleDependencyGraph.self,
from: ModuleDependenciesInputs.simpleDependencyGraphInput.data(using: .utf8)!)
// Key part of this test, using the external info to generate dependency pre-build jobs
try moduleDependencyGraph.resolveExternalDependencies(for: externalDetails)
// Ensure the main module was not overriden by an external dependency
XCTAssertNotNil(moduleDependencyGraph.modules[.swift("simpleTestModule")])
// Ensure the "K" module's framework status got resolved via `externalDetails`
guard case .swiftPrebuiltExternal(let kPrebuiltDetails) = moduleDependencyGraph.modules[.swiftPrebuiltExternal("K")]?.details else {
XCTFail("Expected prebuilt module details for module \"K\"")
return
}
XCTAssertTrue(kPrebuiltDetails.isFramework)
let jobsInPhases = try driver.computeJobsForPhasedStandardBuild(with: moduleDependencyGraph)
let job = try XCTUnwrap(jobsInPhases.allJobs.first(where: { $0.kind == .compile }))
// Load the dependency JSON and verify this dependency was encoded correctly
let explicitDepsFlag =
SwiftDriver.Job.ArgTemplate.flag(String("-explicit-swift-module-map-file"))
XCTAssert(job.commandLine.contains(explicitDepsFlag))
let jsonDepsPathIndex = job.commandLine.firstIndex(of: explicitDepsFlag)
let jsonDepsPathArg = job.commandLine[jsonDepsPathIndex! + 1]
guard case .path(let jsonDepsPath) = jsonDepsPathArg else {
XCTFail("No JSON dependency file path found.")
return
}
guard case let .temporaryWithKnownContents(_, contents) = jsonDepsPath else {
XCTFail("Unexpected path type")
return
}
let dependencyInfoList = try JSONDecoder().decode(Array<SwiftModuleArtifactInfo>.self,
from: contents)
XCTAssertEqual(dependencyInfoList.count, 2)
let dependencyArtifacts =
dependencyInfoList.first(where:{ $0.moduleName == "A" })!
// Ensure this is a framework, as specified by the externalDetails above.
XCTAssertEqual(dependencyArtifacts.isFramework, true)
}
}
private func pathMatchesSwiftModule(path: VirtualPath, _ name: String) -> Bool {
return path.basenameWithoutExt.starts(with: "\(name)-") &&
path.extension! == FileType.swiftModule.rawValue
}
/// Test generation of explicit module build jobs for dependency modules when the driver
/// is invoked with -explicit-module-build
func testExplicitModuleBuildJobs() throws {
try withTemporaryDirectory { path in
let main = path.appending(component: "testExplicitModuleBuildJobs.swift")
try localFileSystem.writeFileContents(main) {
$0 <<< "import C;"
$0 <<< "import E;"
$0 <<< "import G;"
}
let cHeadersPath: AbsolutePath =
testInputsPath.appending(component: "ExplicitModuleBuilds")
.appending(component: "CHeaders")
let bridgingHeaderpath: AbsolutePath =
cHeadersPath.appending(component: "Bridging.h")
let swiftModuleInterfacesPath: AbsolutePath =
testInputsPath.appending(component: "ExplicitModuleBuilds")
.appending(component: "Swift")
let sdkArgumentsForTesting = (try? Driver.sdkArgumentsForTesting()) ?? []
var driver = try Driver(args: ["swiftc",
"-target", "x86_64-apple-macosx11.0",
"-I", cHeadersPath.nativePathString(escaped: true),
"-I", swiftModuleInterfacesPath.nativePathString(escaped: true),
"-explicit-module-build",
"-import-objc-header", bridgingHeaderpath.nativePathString(escaped: true),
main.nativePathString(escaped: true)] + sdkArgumentsForTesting)
let jobs = try driver.planBuild()
// Figure out which Triples to use.
let dependencyGraph = try driver.gatherModuleDependencies()
let mainModuleInfo = try dependencyGraph.moduleInfo(of: .swift("testExplicitModuleBuildJobs"))
guard case .swift(_) = mainModuleInfo.details else {
XCTFail("Main module does not have Swift details field")
return
}
for job in jobs {
XCTAssertEqual(job.outputs.count, 1)
let outputFilePath = job.outputs[0].file
// Swift dependencies
if outputFilePath.extension != nil,
outputFilePath.extension! == FileType.swiftModule.rawValue {
if pathMatchesSwiftModule(path: outputFilePath, "A") {
try checkExplicitModuleBuildJob(job: job, moduleId: .swift("A"),
dependencyGraph: dependencyGraph)
} else if pathMatchesSwiftModule(path: outputFilePath, "E") {
try checkExplicitModuleBuildJob(job: job, moduleId: .swift("E"),
dependencyGraph: dependencyGraph)
} else if pathMatchesSwiftModule(path: outputFilePath, "G") {
try checkExplicitModuleBuildJob(job: job, moduleId: .swift("G"),
dependencyGraph: dependencyGraph)
} else if pathMatchesSwiftModule(path: outputFilePath, "Swift") {
try checkExplicitModuleBuildJob(job: job, moduleId: .swift("Swift"),
dependencyGraph: dependencyGraph)
} else if pathMatchesSwiftModule(path: outputFilePath, "_Concurrency") {
try checkExplicitModuleBuildJob(job: job, moduleId: .swift("_Concurrency"),
dependencyGraph: dependencyGraph)
} else if pathMatchesSwiftModule(path: outputFilePath, "_StringProcessing") {
try checkExplicitModuleBuildJob(job: job, moduleId: .swift("_StringProcessing"),
dependencyGraph: dependencyGraph)
} else if pathMatchesSwiftModule(path: outputFilePath, "SwiftOnoneSupport") {
try checkExplicitModuleBuildJob(job: job, moduleId: .swift("SwiftOnoneSupport"),
dependencyGraph: dependencyGraph)
}
// Clang Dependencies
} else if let outputExtension = outputFilePath.extension,
outputExtension == FileType.pcm.rawValue {
let relativeOutputPathFileName = outputFilePath.basename
if relativeOutputPathFileName.starts(with: "A-") {
try checkExplicitModuleBuildJob(job: job, moduleId: .clang("A"),
dependencyGraph: dependencyGraph)
}
else if relativeOutputPathFileName.starts(with: "B-") {
try checkExplicitModuleBuildJob(job: job, moduleId: .clang("B"),
dependencyGraph: dependencyGraph)
}
else if relativeOutputPathFileName.starts(with: "C-") {
try checkExplicitModuleBuildJob(job: job, moduleId: .clang("C"),
dependencyGraph: dependencyGraph)
}
else if relativeOutputPathFileName.starts(with: "G-") {
try checkExplicitModuleBuildJob(job: job, moduleId: .clang("G"),
dependencyGraph: dependencyGraph)
}
else if relativeOutputPathFileName.starts(with: "F-") {
try checkExplicitModuleBuildJob(job: job, moduleId: .clang("F"),
dependencyGraph: dependencyGraph)
}
else if relativeOutputPathFileName.starts(with: "SwiftShims-") {
try checkExplicitModuleBuildJob(job: job, moduleId: .clang("SwiftShims"),
dependencyGraph: dependencyGraph)
}
else if relativeOutputPathFileName.starts(with: "_SwiftConcurrencyShims-") {
try checkExplicitModuleBuildJob(job: job, moduleId: .clang("_SwiftConcurrencyShims"),
dependencyGraph: dependencyGraph)
}
else {
XCTFail("Unexpected module dependency build job output: \(outputFilePath)")
}
} else {
switch (outputFilePath) {
case .relative(RelativePath("testExplicitModuleBuildJobs")):
XCTAssertTrue(driver.isExplicitMainModuleJob(job: job))
XCTAssertEqual(job.kind, .link)
case .temporary(_):
let baseName = "testExplicitModuleBuildJobs"
XCTAssertTrue(matchTemporary(outputFilePath, basename: baseName, fileExtension: "o") ||
matchTemporary(outputFilePath, basename: baseName, fileExtension: "autolink") ||
matchTemporary(outputFilePath, basename: "Bridging-", fileExtension: "pch"))
default:
XCTFail("Unexpected module dependency build job output: \(outputFilePath)")
}
}
}
}
}
/// Test generation of explicit module build jobs for dependency modules when the driver
/// is invoked with -explicit-module-build and -pch-output-dir
func testExplicitModuleBuildPCHOutputJobs() throws {
try withTemporaryDirectory { path in
let main = path.appending(component: "testExplicitModuleBuildPCHOutputJobs.swift")
try localFileSystem.writeFileContents(main) {
$0 <<< "import C;"
$0 <<< "import E;"
$0 <<< "import G;"
}
let cHeadersPath: AbsolutePath =
testInputsPath.appending(component: "ExplicitModuleBuilds")
.appending(component: "CHeaders")
let bridgingHeaderpath: AbsolutePath =
cHeadersPath.appending(component: "Bridging.h")
let swiftModuleInterfacesPath: AbsolutePath =
testInputsPath.appending(component: "ExplicitModuleBuilds")
.appending(component: "Swift")
let sdkArgumentsForTesting = (try? Driver.sdkArgumentsForTesting()) ?? []
let pchOutputDir: AbsolutePath = path
var driver = try Driver(args: ["swiftc",
"-target", "x86_64-apple-macosx11.0",
"-I", cHeadersPath.nativePathString(escaped: true),
"-I", swiftModuleInterfacesPath.nativePathString(escaped: true),
"-explicit-module-build",
"-import-objc-header", bridgingHeaderpath.nativePathString(escaped: true),
"-pch-output-dir", pchOutputDir.nativePathString(escaped: true),
main.nativePathString(escaped: true)] + sdkArgumentsForTesting)
let jobs = try driver.planBuild()
// Figure out which Triples to use.
let dependencyGraph = try driver.gatherModuleDependencies()
let mainModuleInfo = try dependencyGraph.moduleInfo(of: .swift("testExplicitModuleBuildPCHOutputJobs"))
guard case .swift(_) = mainModuleInfo.details else {
XCTFail("Main module does not have Swift details field")
return
}
for job in jobs {
XCTAssertEqual(job.outputs.count, 1)
let outputFilePath = job.outputs[0].file
// Swift dependencies
if outputFilePath.extension != nil,
outputFilePath.extension! == FileType.swiftModule.rawValue {
if pathMatchesSwiftModule(path: outputFilePath, "A") {
try checkExplicitModuleBuildJob(job: job, moduleId: .swift("A"),
dependencyGraph: dependencyGraph)
} else if pathMatchesSwiftModule(path: outputFilePath, "E") {
try checkExplicitModuleBuildJob(job: job, moduleId: .swift("E"),
dependencyGraph: dependencyGraph)
} else if pathMatchesSwiftModule(path: outputFilePath, "G") {
try checkExplicitModuleBuildJob(job: job, moduleId: .swift("G"),
dependencyGraph: dependencyGraph)
} else if pathMatchesSwiftModule(path: outputFilePath, "Swift") {
try checkExplicitModuleBuildJob(job: job, moduleId: .swift("Swift"),
dependencyGraph: dependencyGraph)
} else if pathMatchesSwiftModule(path: outputFilePath, "_Concurrency") {
try checkExplicitModuleBuildJob(job: job, moduleId: .swift("_Concurrency"),
dependencyGraph: dependencyGraph)
} else if pathMatchesSwiftModule(path: outputFilePath, "_StringProcessing") {
try checkExplicitModuleBuildJob(job: job, moduleId: .swift("_StringProcessing"),
dependencyGraph: dependencyGraph)
} else if pathMatchesSwiftModule(path: outputFilePath, "SwiftOnoneSupport") {
try checkExplicitModuleBuildJob(job: job, moduleId: .swift("SwiftOnoneSupport"),
dependencyGraph: dependencyGraph)
}
// Clang Dependencies
} else if let outputExtension = outputFilePath.extension,
outputExtension == FileType.pcm.rawValue {
let relativeOutputPathFileName = outputFilePath.basename
if relativeOutputPathFileName.starts(with: "A-") {
try checkExplicitModuleBuildJob(job: job, moduleId: .clang("A"),
dependencyGraph: dependencyGraph)
}
else if relativeOutputPathFileName.starts(with: "B-") {
try checkExplicitModuleBuildJob(job: job, moduleId: .clang("B"),
dependencyGraph: dependencyGraph)
}
else if relativeOutputPathFileName.starts(with: "C-") {
try checkExplicitModuleBuildJob(job: job, moduleId: .clang("C"),
dependencyGraph: dependencyGraph)
}
else if relativeOutputPathFileName.starts(with: "G-") {
try checkExplicitModuleBuildJob(job: job, moduleId: .clang("G"),
dependencyGraph: dependencyGraph)
}
else if relativeOutputPathFileName.starts(with: "F-") {
try checkExplicitModuleBuildJob(job: job, moduleId: .clang("F"),
dependencyGraph: dependencyGraph)
}
else if relativeOutputPathFileName.starts(with: "SwiftShims-") {
try checkExplicitModuleBuildJob(job: job, moduleId: .clang("SwiftShims"),
dependencyGraph: dependencyGraph)
}
else if relativeOutputPathFileName.starts(with: "_SwiftConcurrencyShims-") {
try checkExplicitModuleBuildJob(job: job, moduleId: .clang("_SwiftConcurrencyShims"),
dependencyGraph: dependencyGraph)
}
else {
XCTFail("Unexpected module dependency build job output: \(outputFilePath)")
}
// Bridging header
} else if let outputExtension = outputFilePath.extension,
outputExtension == FileType.pch.rawValue {
switch (outputFilePath) {
case .absolute:
// pch output is a computed absolute path.
XCTAssertFalse(job.commandLine.contains("-pch-output-dir"))
default:
XCTFail("Unexpected module dependency build job output: \(outputFilePath)")
}
} else {
// Check we don't use `-pch-output-dir` anymore during main module job.
XCTAssertFalse(job.commandLine.contains("-pch-output-dir"))
switch (outputFilePath) {
case .relative(RelativePath("testExplicitModuleBuildPCHOutputJobs")):
XCTAssertTrue(driver.isExplicitMainModuleJob(job: job))
XCTAssertEqual(job.kind, .link)
case .temporary(_):
let baseName = "testExplicitModuleBuildPCHOutputJobs"
XCTAssertTrue(matchTemporary(outputFilePath, basename: baseName, fileExtension: "o") ||
matchTemporary(outputFilePath, basename: baseName, fileExtension: "autolink"))
default:
XCTFail("Unexpected module dependency build job output: \(outputFilePath)")
}
}
}
}
}
func testImmediateModeExplicitModuleBuild() throws {
try withTemporaryDirectory { path in
let main = path.appending(component: "testExplicitModuleBuildJobs.swift")
try localFileSystem.writeFileContents(main) {
$0 <<< "import C\n"
}
let cHeadersPath: AbsolutePath =
testInputsPath.appending(component: "ExplicitModuleBuilds")
.appending(component: "CHeaders")
let swiftModuleInterfacesPath: AbsolutePath =
testInputsPath.appending(component: "ExplicitModuleBuilds")
.appending(component: "Swift")
let sdkArgumentsForTesting = (try? Driver.sdkArgumentsForTesting()) ?? []
var driver = try Driver(args: ["swift",
"-target", "x86_64-apple-macosx11.0",
"-I", cHeadersPath.nativePathString(escaped: true),
"-I", swiftModuleInterfacesPath.nativePathString(escaped: true),
"-explicit-module-build",
main.nativePathString(escaped: true)] + sdkArgumentsForTesting)
let jobs = try driver.planBuild()
let interpretJobs = jobs.filter { $0.kind == .interpret }
XCTAssertEqual(interpretJobs.count, 1)
let interpretJob = interpretJobs[0]
XCTAssertTrue(interpretJob.requiresInPlaceExecution)
XCTAssertTrue(interpretJob.commandLine.contains(subsequence: ["-frontend", "-interpret"]))
//XCTAssertTrue(interpretJob.commandLine.contains("-disable-implicit-swift-modules"))
XCTAssertTrue(interpretJob.commandLine.contains(subsequence: ["-Xcc", "-fno-implicit-modules"]))
// Figure out which Triples to use.
let dependencyGraph = try driver.gatherModuleDependencies()
let mainModuleInfo = try dependencyGraph.moduleInfo(of: .swift("testExplicitModuleBuildJobs"))
guard case .swift(_) = mainModuleInfo.details else {
XCTFail("Main module does not have Swift details field")
return
}
for job in jobs {
guard job.kind != .interpret else { continue }
XCTAssertEqual(job.outputs.count, 1)
let outputFilePath = job.outputs[0].file
// Swift dependencies
if outputFilePath.extension != nil,
outputFilePath.extension! == FileType.swiftModule.rawValue {
if pathMatchesSwiftModule(path: outputFilePath, "A") {
try checkExplicitModuleBuildJob(job: job, moduleId: .swift("A"),
dependencyGraph: dependencyGraph)
} else if pathMatchesSwiftModule(path: outputFilePath, "Swift") {
try checkExplicitModuleBuildJob(job: job, moduleId: .swift("Swift"),
dependencyGraph: dependencyGraph)
} else if pathMatchesSwiftModule(path: outputFilePath, "_Concurrency") {
try checkExplicitModuleBuildJob(job: job, moduleId: .swift("_Concurrency"),
dependencyGraph: dependencyGraph)
} else if pathMatchesSwiftModule(path: outputFilePath, "_StringProcessing") {
try checkExplicitModuleBuildJob(job: job, moduleId: .swift("_StringProcessing"),
dependencyGraph: dependencyGraph)
} else if pathMatchesSwiftModule(path: outputFilePath, "SwiftOnoneSupport") {
try checkExplicitModuleBuildJob(job: job, moduleId: .swift("SwiftOnoneSupport"),
dependencyGraph: dependencyGraph)
}
// Clang Dependencies
} else if outputFilePath.extension != nil,
outputFilePath.extension! == FileType.pcm.rawValue {
let relativeOutputPathFileName = outputFilePath.basename
if relativeOutputPathFileName.starts(with: "A-") {
try checkExplicitModuleBuildJob(job: job, moduleId: .clang("A"),
dependencyGraph: dependencyGraph)
}
else if relativeOutputPathFileName.starts(with: "B-") {
try checkExplicitModuleBuildJob(job: job, moduleId: .clang("B"),
dependencyGraph: dependencyGraph)
}
else if relativeOutputPathFileName.starts(with: "C-") {
try checkExplicitModuleBuildJob(job: job, moduleId: .clang("C"),
dependencyGraph: dependencyGraph)
}
else if relativeOutputPathFileName.starts(with: "SwiftShims-") {
try checkExplicitModuleBuildJob(job: job, moduleId: .clang("SwiftShims"),
dependencyGraph: dependencyGraph)
}
else if relativeOutputPathFileName.starts(with: "_SwiftConcurrencyShims-") {
try checkExplicitModuleBuildJob(job: job, moduleId: .clang("_SwiftConcurrencyShims"),
dependencyGraph: dependencyGraph)
}
else {
XCTFail("Unexpected module dependency build job output: \(outputFilePath)")
}
} else {
switch (outputFilePath) {
case .relative(RelativePath("testExplicitModuleBuildJobs")):
XCTAssertTrue(driver.isExplicitMainModuleJob(job: job))
XCTAssertEqual(job.kind, .link)
case .temporary(_):
let baseName = "testExplicitModuleBuildJobs"
XCTAssertTrue(matchTemporary(outputFilePath, basename: baseName, fileExtension: "o") ||
matchTemporary(outputFilePath, basename: baseName, fileExtension: "autolink"))
default:
XCTFail("Unexpected module dependency build job output: \(outputFilePath)")
}
}
}
}
}
func testModuleAliasingPrebuiltWithScanDeps() throws {
try withTemporaryDirectory { path in
let sdkArgumentsForTesting = (try? Driver.sdkArgumentsForTesting()) ?? []
let (stdLibPath, shimsPath, _, _) = try getDriverArtifactsForScanning()
let srcBar = path.appending(component: "bar.swift")
let moduleBarPath = path.appending(component: "Bar.swiftmodule").nativePathString(escaped: true)
try localFileSystem.writeFileContents(srcBar) {
$0 <<< "public class KlassBar {}"
}
// Create Bar.swiftmodule
var driver = try Driver(args: ["swiftc",
"-explicit-module-build",
"-working-directory",
path.nativePathString(escaped: true),
srcBar.nativePathString(escaped: true),
"-module-name",
"Bar",
"-emit-module",
"-emit-module-path", moduleBarPath,
"-module-cache-path", path.nativePathString(escaped: true),
"-I", stdLibPath.nativePathString(escaped: true),
"-I", shimsPath.nativePathString(escaped: true),
] + sdkArgumentsForTesting,
env: ProcessEnv.vars)
guard driver.isFrontendArgSupported(.moduleAlias) else {
throw XCTSkip("Skipping: compiler does not support '-module-alias'")
}
let jobs = try driver.planBuild()
try driver.run(jobs: jobs)
XCTAssertFalse(driver.diagnosticEngine.hasErrors)
XCTAssertTrue(FileManager.default.fileExists(atPath: moduleBarPath))
// Foo imports Car which is mapped to the real module Bar via
// `-module-alias Car=Bar`; it allows Car (alias) to be referenced
// in source files, while its contents are compiled as Bar (real
// name on disk).
let srcFoo = path.appending(component: "Foo.swift")
try localFileSystem.writeFileContents(srcFoo) {
$0 <<< "import Car\n"
$0 <<< "func run() -> Car.KlassBar? { return nil }"
}
// Module alias with the fallback scanner (frontend scanner)
var driverA = try Driver(args: ["swiftc",
"-nonlib-dependency-scanner",
"-explicit-module-build",
"-working-directory",
path.nativePathString(escaped: true),
srcFoo.nativePathString(escaped: true),
"-module-alias", "Car=Bar",
"-I", path.nativePathString(escaped: true),
"-I", stdLibPath.nativePathString(escaped: true),
"-I", shimsPath.nativePathString(escaped: true),
] + sdkArgumentsForTesting)
// Resulting graph should contain the real module name Bar
let dependencyGraphA = try driverA.gatherModuleDependencies()
XCTAssertTrue(dependencyGraphA.modules.contains { (key: ModuleDependencyId, value: ModuleInfo) in
key.moduleName == "Bar"
})
XCTAssertFalse(dependencyGraphA.modules.contains { (key: ModuleDependencyId, value: ModuleInfo) in
key.moduleName == "Car"
})
let plannedJobsA = try driverA.planBuild()
XCTAssertTrue(plannedJobsA.contains { job in
job.commandLine.contains(.flag("-module-alias")) &&
job.commandLine.contains(.flag("Car=Bar"))
})
// Module alias with the default scanner (driver scanner)
var driverB = try Driver(args: ["swiftc",
"-explicit-module-build",
"-working-directory",
path.nativePathString(escaped: true),
srcFoo.nativePathString(escaped: true),
"-module-alias", "Car=Bar",
"-I", path.nativePathString(escaped: true),
"-I", stdLibPath.nativePathString(escaped: true),
"-I", shimsPath.nativePathString(escaped: true),
] + sdkArgumentsForTesting)
// Resulting graph should contain the real module name Bar
let dependencyGraphB = try driverB.gatherModuleDependencies()
XCTAssertTrue(dependencyGraphB.modules.contains { (key: ModuleDependencyId, value: ModuleInfo) in
key.moduleName == "Bar"
})
XCTAssertFalse(dependencyGraphB.modules.contains { (key: ModuleDependencyId, value: ModuleInfo) in
key.moduleName == "Car"
})
let plannedJobsB = try driverB.planBuild()
XCTAssertTrue(plannedJobsB.contains { job in
job.commandLine.contains(.flag("-module-alias")) &&
job.commandLine.contains(.flag("Car=Bar"))
})
}
}
func testModuleAliasingInterfaceWithScanDeps() throws {
try withTemporaryDirectory { path in
let swiftModuleInterfacesPath: AbsolutePath =
testInputsPath.appending(component: "ExplicitModuleBuilds")
.appending(component: "Swift")
let sdkArgumentsForTesting = (try? Driver.sdkArgumentsForTesting()) ?? []
let (stdLibPath, shimsPath, _, _) = try getDriverArtifactsForScanning()
// Foo imports Car which is mapped to the real module Bar via
// `-module-alias Car=E`; it allows Car (alias) to be referenced
// in source files, while its contents are compiled as E (real
// name on disk).
let srcFoo = path.appending(component: "Foo.swift")
try localFileSystem.writeFileContents(srcFoo) {
$0 <<< "import Car\n"
}
// Module alias with the fallback scanner (frontend scanner)
var driverA = try Driver(args: ["swiftc",
"-nonlib-dependency-scanner",
"-explicit-module-build",
srcFoo.nativePathString(escaped: true),
"-module-alias", "Car=E",
"-I", swiftModuleInterfacesPath.nativePathString(escaped: true),
"-I", stdLibPath.nativePathString(escaped: true),
"-I", shimsPath.nativePathString(escaped: true),
] + sdkArgumentsForTesting)
guard driverA.isFrontendArgSupported(.moduleAlias) else {
throw XCTSkip("Skipping: compiler does not support '-module-alias'")
}
// Resulting graph should contain the real module name Bar
let dependencyGraphA = try driverA.gatherModuleDependencies()
XCTAssertTrue(dependencyGraphA.modules.contains { (key: ModuleDependencyId, value: ModuleInfo) in
key.moduleName == "E"
})
XCTAssertFalse(dependencyGraphA.modules.contains { (key: ModuleDependencyId, value: ModuleInfo) in
key.moduleName == "Car"
})
let plannedJobsA = try driverA.planBuild()
XCTAssertTrue(plannedJobsA.contains { job in
job.commandLine.contains(.flag("-module-alias")) &&
job.commandLine.contains(.flag("Car=E"))
})
// Module alias with the default scanner (driver scanner)
var driverB = try Driver(args: ["swiftc",
"-explicit-module-build",
srcFoo.nativePathString(escaped: true),
"-module-alias", "Car=E",
"-working-directory", path.nativePathString(escaped: true),
"-I", swiftModuleInterfacesPath.nativePathString(escaped: true),
"-I", stdLibPath.nativePathString(escaped: true),
"-I", shimsPath.nativePathString(escaped: true),
] + sdkArgumentsForTesting)
// Resulting graph should contain the real module name Bar
let dependencyGraphB = try driverB.gatherModuleDependencies()
XCTAssertTrue(dependencyGraphB.modules.contains { (key: ModuleDependencyId, value: ModuleInfo) in
key.moduleName == "E"
})
XCTAssertFalse(dependencyGraphB.modules.contains { (key: ModuleDependencyId, value: ModuleInfo) in
key.moduleName == "Car"
})
let plannedJobsB = try driverB.planBuild()
XCTAssertTrue(plannedJobsB.contains { job in
job.commandLine.contains(.flag("-module-alias")) &&
job.commandLine.contains(.flag("Car=E"))
})
}
}
func testModuleAliasingWithImportPrescan() throws {
let (_, _, toolchain, _) = try getDriverArtifactsForScanning()
let dummyDriver = try Driver(args: ["swiftc", "-module-name", "dummyDriverCheck", "test.swift"])
guard dummyDriver.isFrontendArgSupported(.moduleAlias) else {
throw XCTSkip("Skipping: compiler does not support '-module-alias'")
}
// The dependency oracle wraps an instance of libSwiftScan and ensures thread safety across
// queries.
let dependencyOracle = InterModuleDependencyOracle()
let scanLibPath = try XCTUnwrap(toolchain.lookupSwiftScanLib())
guard try dependencyOracle
.verifyOrCreateScannerInstance(fileSystem: localFileSystem,
swiftScanLibPath: scanLibPath) else {
XCTFail("Dependency scanner library not found")
return
}
try withTemporaryDirectory { path in
let main = path.appending(component: "foo.swift")
try localFileSystem.writeFileContents(main) {
$0 <<< "import Car;"
$0 <<< "import Jet;"
}
let sdkArgumentsForTesting = (try? Driver.sdkArgumentsForTesting()) ?? []
let scannerCommand = ["-scan-dependencies",
"-import-prescan",
"-module-alias",
"Car=Bar",
main.nativePathString(escaped: true)] + sdkArgumentsForTesting
let deps =
try! dependencyOracle.getImports(workingDirectory: path,
moduleAliases: ["Car": "Bar"],
commandLine: scannerCommand)
XCTAssertTrue(deps.imports.contains("Bar"))
XCTAssertFalse(deps.imports.contains("Car"))
XCTAssertTrue(deps.imports.contains("Jet"))
}
}
func testModuleAliasingWithExplicitBuild() throws {
try withTemporaryDirectory { path in
try localFileSystem.changeCurrentWorkingDirectory(to: path)
let moduleCachePath = path.appending(component: "ModuleCache")
try localFileSystem.createDirectory(moduleCachePath)
let srcBar = path.appending(component: "bar.swift")
let moduleBarPath = path.appending(component: "Bar.swiftmodule").nativePathString(escaped: true)
try localFileSystem.writeFileContents(srcBar) {
$0 <<< "public class KlassBar {}"
}
let sdkArgumentsForTesting = (try? Driver.sdkArgumentsForTesting()) ?? []
let (stdLibPath, shimsPath, _, _) = try getDriverArtifactsForScanning()
var driver1 = try Driver(args: ["swiftc",
"-explicit-module-build",
"-module-name",
"Bar",
"-working-directory",
path.nativePathString(escaped: true),
"-emit-module",
"-emit-module-path", moduleBarPath,
"-module-cache-path", moduleCachePath.nativePathString(escaped: true),
srcBar.nativePathString(escaped: true),
"-I", stdLibPath.nativePathString(escaped: true),
"-I", shimsPath.nativePathString(escaped: true),
] + sdkArgumentsForTesting,
env: ProcessEnv.vars)
guard driver1.isFrontendArgSupported(.moduleAlias) else {
throw XCTSkip("Skipping: compiler does not support '-module-alias'")
}
let jobs1 = try driver1.planBuild()
try driver1.run(jobs: jobs1)
XCTAssertFalse(driver1.diagnosticEngine.hasErrors)
XCTAssertTrue(FileManager.default.fileExists(atPath: moduleBarPath))
let srcFoo = path.appending(component: "foo.swift")
let moduleFooPath = path.appending(component: "Foo.swiftmodule").nativePathString(escaped: true)
// Module Foo imports Car but it's mapped to Bar (real name)
// `-module-alias Car=Bar` allows Car (alias) to be referenced
// in source files in Foo, but its contents will be compiled
// as Bar (real name on-disk).
try localFileSystem.writeFileContents(srcFoo) {
$0 <<< "import Car\n"
$0 <<< "func run() -> Car.KlassBar? { return nil }"
}
var driver2 = try Driver(args: ["swiftc",
"-I", path.nativePathString(escaped: true),
"-explicit-module-build",
"-module-name",
"Foo",
"-working-directory",
path.nativePathString(escaped: true),
"-emit-module",
"-emit-module-path", moduleFooPath,
"-module-cache-path", moduleCachePath.nativePathString(escaped: true),
"-module-alias",
"Car=Bar",
srcFoo.nativePathString(escaped: true),
"-I", stdLibPath.nativePathString(escaped: true),
"-I", shimsPath.nativePathString(escaped: true),
] + sdkArgumentsForTesting,
env: ProcessEnv.vars)
let jobs2 = try driver2.planBuild()
try driver2.run(jobs: jobs2)
XCTAssertFalse(driver2.diagnosticEngine.hasErrors)
XCTAssertTrue(FileManager.default.fileExists(atPath: moduleFooPath))
}
}
func testExplicitModuleBuildEndToEndWithBinaryHeaderDeps() throws {
try withTemporaryDirectory { path in
try localFileSystem.changeCurrentWorkingDirectory(to: path)
let moduleCachePath = path.appending(component: "ModuleCache")
try localFileSystem.createDirectory(moduleCachePath)
let PCHPath = path.appending(component: "PCH")
try localFileSystem.createDirectory(PCHPath)
let FooInstallPath = path.appending(component: "Foo")
try localFileSystem.createDirectory(FooInstallPath)
let foo = path.appending(component: "foo.swift")
try localFileSystem.writeFileContents(foo) {
$0 <<< "extension Profiler {"
$0 <<< " public static let count: Int = 42"
$0 <<< "}"
}
let fooHeader = path.appending(component: "foo.h")
try localFileSystem.writeFileContents(fooHeader) {
$0 <<< "struct Profiler { void* ptr; };"
}
let main = path.appending(component: "main.swift")
try localFileSystem.writeFileContents(main) {
$0 <<< "import Foo"
}
let sdkArgumentsForTesting = (try? Driver.sdkArgumentsForTesting()) ?? []
var fooBuildDriver = try Driver(args: ["swiftc",
"-explicit-module-build",
"-module-cache-path", moduleCachePath.nativePathString(escaped: true),
"-working-directory", path.nativePathString(escaped: true),
foo.nativePathString(escaped: true),
"-emit-module", "-wmo", "-module-name", "Foo",
"-emit-module-path", FooInstallPath.nativePathString(escaped: true),
"-import-objc-header", fooHeader.nativePathString(escaped: true),
"-pch-output-dir", PCHPath.nativePathString(escaped: true),
FooInstallPath.appending(component: "Foo.swiftmodule").nativePathString(escaped: true)]
+ sdkArgumentsForTesting,
env: ProcessEnv.vars)
// Ensure this tooling supports this functionality
let dependencyOracle = InterModuleDependencyOracle()
let scanLibPath = try XCTUnwrap(fooBuildDriver.toolchain.lookupSwiftScanLib())
guard try dependencyOracle
.verifyOrCreateScannerInstance(fileSystem: localFileSystem,
swiftScanLibPath: scanLibPath) else {
XCTFail("Dependency scanner library not found")
return
}
guard try dependencyOracle.supportsBinaryModuleHeaderDependencies() else {
throw XCTSkip("libSwiftScan does not support binary module header dependencies.")
}
let fooJobs = try fooBuildDriver.planBuild()
try fooBuildDriver.run(jobs: fooJobs)
XCTAssertFalse(fooBuildDriver.diagnosticEngine.hasErrors)
var driver = try Driver(args: ["swiftc",
"-I", FooInstallPath.nativePathString(escaped: true),
"-explicit-module-build", "-emit-module", "-emit-module-path",
path.appending(component: "testEMBETEWBHD.swiftmodule").nativePathString(escaped: true),
"-module-cache-path", moduleCachePath.nativePathString(escaped: true),
"-working-directory", path.nativePathString(escaped: true),
main.nativePathString(escaped: true)] + sdkArgumentsForTesting,
env: ProcessEnv.vars)
let jobs = try driver.planBuild()
let compileJob = try XCTUnwrap(jobs.first(where: { $0.description == "Compiling main main.swift" }))
// Ensure the header dependency of Foo shows up on client compile commands
XCTAssertTrue(compileJob.commandLine.contains(subsequence: [.flag("-Xcc"),
.flag("-include-pch"),
.flag("-Xcc"),
.path(.absolute(PCHPath.appending(component: "foo.pch")))]))
try driver.run(jobs: jobs)
XCTAssertFalse(driver.diagnosticEngine.hasErrors)
}
}
func testExplicitModuleBuildEndToEnd() throws {
try withTemporaryDirectory { path in
try localFileSystem.changeCurrentWorkingDirectory(to: path)
let moduleCachePath = path.appending(component: "ModuleCache")
try localFileSystem.createDirectory(moduleCachePath)
let main = path.appending(component: "testExplicitModuleBuildEndToEnd.swift")
try localFileSystem.writeFileContents(main) {
$0 <<< "import C;"
$0 <<< "import E;"
$0 <<< "import G;"
}
let cHeadersPath: AbsolutePath =
testInputsPath.appending(component: "ExplicitModuleBuilds")
.appending(component: "CHeaders")
let swiftModuleInterfacesPath: AbsolutePath =
testInputsPath.appending(component: "ExplicitModuleBuilds")