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//===--------------- GeneratePCMJob.swift - Generate PCM Job ----===//
//
// 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
//
//===----------------------------------------------------------------------===//
extension Driver {
/// Create a job that generates a Clang module (.pcm) that is suitable for
/// use.
///
/// The input is a Clang module map
/// (https://clang.llvm.org/docs/Modules.html#module-map-language) and the
/// output is a compiled module that also includes the additional information
/// needed by Swift's Clang importer, e.g., the Swift name lookup tables.
mutating func generateEmitPCMJob(input: TypedVirtualPath) throws -> Job {
var inputs = [TypedVirtualPath]()
var outputs = [TypedVirtualPath]()
var commandLine: [Job.ArgTemplate] = swiftCompilerPrefixArgs.map { Job.ArgTemplate.flag($0) }
commandLine.appendFlag("-frontend")
commandLine.appendFlag(.emitPcm)
// Input module map.
inputs.append(input)
commandLine.appendPath(input.file)
// Compute the output file.
let output: TypedVirtualPath
if let outputArg = parsedOptions.getLastArgument(.o) {
output = .init(file: try VirtualPath.intern(path: outputArg.asSingle),
type: .pcm)
} else {
output = .init(
file: try VirtualPath.intern(
path: moduleOutputInfo.name.appendingFileTypeExtension(.pcm)),
type: .pcm)
}
outputs.append(output)
commandLine.appendFlag(.o)
commandLine.appendPath(output.file)
try addCommonFrontendOptions(
commandLine: &commandLine, inputs: &inputs, kind: .generatePCM, bridgingHeaderHandling: .ignored)
try commandLine.appendLast(.indexStorePath, from: &parsedOptions)
let cacheKeys = try computeOutputCacheKeyForJob(commandLine: commandLine, inputs: [(input, 0)])
return Job(
moduleName: moduleOutputInfo.name,
kind: .generatePCM,
tool: try toolchain.resolvedTool(.swiftCompiler),
commandLine: commandLine,
displayInputs: [],
inputs: inputs,
primaryInputs: [],
outputs: outputs,
outputCacheKeys: cacheKeys
)
}
/// Create a job that dumps information about a Clang module
///
/// The input is a Clang Pre-compiled module file (.pcm).
mutating func generateDumpPCMJob(input: TypedVirtualPath) throws -> Job {
var inputs = [TypedVirtualPath]()
var commandLine: [Job.ArgTemplate] = swiftCompilerPrefixArgs.map { Job.ArgTemplate.flag($0) }
commandLine.appendFlag("-frontend")
commandLine.appendFlag(.dumpPcm)
// Input precompiled module.
inputs.append(input)
commandLine.appendPath(input.file)
try addCommonFrontendOptions(
commandLine: &commandLine, inputs: &inputs, kind: .generatePCM, bridgingHeaderHandling: .ignored)
return Job(
moduleName: moduleOutputInfo.name,
kind: .dumpPCM,
tool: try toolchain.resolvedTool(.swiftCompiler),
commandLine: commandLine,
displayInputs: [],
inputs: inputs,
primaryInputs: [],
outputs: []
)
}
}
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