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Merge pull request #178 from jpsim/nn-swift-test
Runtime linking of Clang & SourceKit, codegen & update to latest Swift snapshot
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,140 @@ | ||
| // | ||
| // library_wrapper.swift | ||
| // sourcekitten | ||
| // | ||
| // Created by Norio Nomura on 2/20/16. | ||
| // Copyright © 2016 SourceKitten. All rights reserved. | ||
| // | ||
|
|
||
| import Foundation | ||
|
|
||
| struct DynamicLinkLibrary { | ||
| let path: String | ||
| let handle: UnsafeMutablePointer<Void> | ||
|
|
||
| func loadSymbol<T>(symbol: String) -> T { | ||
| let sym = Darwin.dlsym(handle, symbol) | ||
| if sym == nil { | ||
| let errorString = String(UTF8String: dlerror()) | ||
| fatalError("Finding symbol \(symbol) failed: \(errorString)") | ||
| } | ||
| return unsafeBitCast(sym, T.self) | ||
| } | ||
| } | ||
|
|
||
| let toolchainLoader = Loader(searchPaths: [ | ||
| xcodeDefaultToolchainOverride, | ||
| toolchainDir, | ||
| xcodeSelectPath?.toolchainDir, | ||
| /* | ||
| These search paths are used when `xcode-select -p` points to | ||
| "Command Line Tools OS X for Xcode", but Xcode.app exists. | ||
| */ | ||
| applicationsDir?.xcodeDeveloperDir.toolchainDir, | ||
| applicationsDir?.xcodeBetaDeveloperDir.toolchainDir, | ||
| userApplicationsDir?.xcodeDeveloperDir.toolchainDir, | ||
| userApplicationsDir?.xcodeBetaDeveloperDir.toolchainDir, | ||
| ].flatMap { path in | ||
| if let fullPath = path?.usrLibDir where fullPath.isFile { | ||
| return fullPath | ||
| } | ||
| return nil | ||
| }) | ||
|
|
||
| struct Loader { | ||
| let searchPaths: [String] | ||
|
|
||
| func load(path: String) -> DynamicLinkLibrary { | ||
| let fullPaths = searchPaths.map { $0.stringByAppendingPathComponent(path) }.filter { $0.isFile } | ||
|
|
||
| // try all fullPaths that contains target file, | ||
| // then try loading with simple path that depends resolving to DYLD | ||
| for fullPath in fullPaths + [path] { | ||
| let handle = dlopen(fullPath, RTLD_LAZY) | ||
| if handle != nil { | ||
| return DynamicLinkLibrary(path: path, handle: handle) | ||
| } | ||
| } | ||
|
|
||
| fatalError("Loading \(path) failed") | ||
| } | ||
| } | ||
|
|
||
| /// Returns "XCODE_DEFAULT_TOOLCHAIN_OVERRIDE" environment variable | ||
| /// | ||
| /// `launch-with-toolchain` sets the toolchain path to the | ||
| /// "XCODE_DEFAULT_TOOLCHAIN_OVERRIDE" environment variable. | ||
| private let xcodeDefaultToolchainOverride: String? = | ||
| NSProcessInfo.processInfo().environment["XCODE_DEFAULT_TOOLCHAIN_OVERRIDE"] | ||
|
|
||
| /// Returns "TOOLCHAIN_DIR" environment variable | ||
| /// | ||
| /// `Xcode`/`xcodebuild` sets the toolchain path to the | ||
| /// "TOOLCHAIN_DIR" environment variable. | ||
| private let toolchainDir: String? = | ||
| NSProcessInfo.processInfo().environment["TOOLCHAIN_DIR"] | ||
|
|
||
| /// Returns result string of `xcode-select -p` | ||
| private let xcodeSelectPath: String? = { | ||
| let pathOfXcodeSelect = "/usr/bin/xcode-select" | ||
|
|
||
| if !NSFileManager.defaultManager().isExecutableFileAtPath(pathOfXcodeSelect) { | ||
| return nil | ||
| } | ||
|
|
||
| let task = NSTask() | ||
| task.launchPath = pathOfXcodeSelect | ||
| task.arguments = ["-p"] | ||
|
|
||
| let pipe = NSPipe() | ||
| task.standardOutput = pipe | ||
| task.launch() // if xcode-select does not exist, crash with `NSInvalidArgumentException`. | ||
|
|
||
| let data = pipe.fileHandleForReading.readDataToEndOfFile() | ||
| guard let output = String(data: data, encoding: NSUTF8StringEncoding) else { | ||
| return nil | ||
| } | ||
|
|
||
| var start = output.startIndex | ||
| var contentsEnd = output.startIndex | ||
| output.getLineStart(&start, end: nil, contentsEnd: &contentsEnd, forRange: start..<start) | ||
| let xcodeSelectPath = output.substringWithRange(start..<contentsEnd) | ||
| // Return nil if xcodeSelectPath points to "Command Line Tools OS X for Xcode" | ||
| // because it doesn't contain `sourcekitd.framework`. | ||
| if xcodeSelectPath == "/Library/Developer/CommandLineTools" { | ||
| return nil | ||
| } | ||
| return xcodeSelectPath | ||
| }() | ||
|
|
||
| private let applicationsDir: String? = | ||
| NSSearchPathForDirectoriesInDomains(.ApplicationDirectory, .SystemDomainMask, true).first | ||
|
|
||
| private let userApplicationsDir: String? = | ||
| NSSearchPathForDirectoriesInDomains(.ApplicationDirectory, .UserDomainMask, true).first | ||
|
|
||
| private extension String { | ||
| private var isFile: Bool { | ||
| return NSFileManager.defaultManager().fileExistsAtPath(self) | ||
| } | ||
|
|
||
| private var toolchainDir: String { | ||
| return stringByAppendingPathComponent("Toolchains/XcodeDefault.xctoolchain") | ||
| } | ||
|
|
||
| private var xcodeDeveloperDir: String { | ||
| return stringByAppendingPathComponent("Xcode.app/Contents/Developer") | ||
| } | ||
|
|
||
| private var xcodeBetaDeveloperDir: String { | ||
| return stringByAppendingPathComponent("Xcode-beta.app/Contents/Developer") | ||
| } | ||
|
|
||
| private var usrLibDir: String { | ||
| return stringByAppendingPathComponent("/usr/lib") | ||
| } | ||
|
|
||
| private func stringByAppendingPathComponent(str: String) -> String { | ||
| return (self as NSString).stringByAppendingPathComponent(str) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,6 @@ | ||
| #if SWIFT_PACKAGE | ||
| import Clang_C | ||
| #endif | ||
| private let library = toolchainLoader.load("libclang.dylib") | ||
| internal let clang_getCString: @convention(c) (CXString) -> (UnsafePointer<Int8>) = library.loadSymbol("clang_getCString") | ||
| internal let clang_disposeString: @convention(c) (CXString) -> () = library.loadSymbol("clang_disposeString") |
38 changes: 38 additions & 0 deletions
38
Source/SourceKittenFramework/library_wrapper_Documentation.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| #if SWIFT_PACKAGE | ||
| import Clang_C | ||
| #endif | ||
| private let library = toolchainLoader.load("libclang.dylib") | ||
| internal let clang_Cursor_getParsedComment: @convention(c) (CXCursor) -> (CXComment) = library.loadSymbol("clang_Cursor_getParsedComment") | ||
| internal let clang_Comment_getKind: @convention(c) (CXComment) -> (CXCommentKind) = library.loadSymbol("clang_Comment_getKind") | ||
| internal let clang_Comment_getNumChildren: @convention(c) (CXComment) -> (UInt32) = library.loadSymbol("clang_Comment_getNumChildren") | ||
| internal let clang_Comment_getChild: @convention(c) (CXComment, UInt32) -> (CXComment) = library.loadSymbol("clang_Comment_getChild") | ||
| internal let clang_Comment_isWhitespace: @convention(c) (CXComment) -> (UInt32) = library.loadSymbol("clang_Comment_isWhitespace") | ||
| internal let clang_InlineContentComment_hasTrailingNewline: @convention(c) (CXComment) -> (UInt32) = library.loadSymbol("clang_InlineContentComment_hasTrailingNewline") | ||
| internal let clang_TextComment_getText: @convention(c) (CXComment) -> (CXString) = library.loadSymbol("clang_TextComment_getText") | ||
| internal let clang_InlineCommandComment_getCommandName: @convention(c) (CXComment) -> (CXString) = library.loadSymbol("clang_InlineCommandComment_getCommandName") | ||
| internal let clang_InlineCommandComment_getRenderKind: @convention(c) (CXComment) -> (CXCommentInlineCommandRenderKind) = library.loadSymbol("clang_InlineCommandComment_getRenderKind") | ||
| internal let clang_InlineCommandComment_getNumArgs: @convention(c) (CXComment) -> (UInt32) = library.loadSymbol("clang_InlineCommandComment_getNumArgs") | ||
| internal let clang_InlineCommandComment_getArgText: @convention(c) (CXComment, UInt32) -> (CXString) = library.loadSymbol("clang_InlineCommandComment_getArgText") | ||
| internal let clang_HTMLTagComment_getTagName: @convention(c) (CXComment) -> (CXString) = library.loadSymbol("clang_HTMLTagComment_getTagName") | ||
| internal let clang_HTMLStartTagComment_isSelfClosing: @convention(c) (CXComment) -> (UInt32) = library.loadSymbol("clang_HTMLStartTagComment_isSelfClosing") | ||
| internal let clang_HTMLStartTag_getNumAttrs: @convention(c) (CXComment) -> (UInt32) = library.loadSymbol("clang_HTMLStartTag_getNumAttrs") | ||
| internal let clang_HTMLStartTag_getAttrName: @convention(c) (CXComment, UInt32) -> (CXString) = library.loadSymbol("clang_HTMLStartTag_getAttrName") | ||
| internal let clang_HTMLStartTag_getAttrValue: @convention(c) (CXComment, UInt32) -> (CXString) = library.loadSymbol("clang_HTMLStartTag_getAttrValue") | ||
| internal let clang_BlockCommandComment_getCommandName: @convention(c) (CXComment) -> (CXString) = library.loadSymbol("clang_BlockCommandComment_getCommandName") | ||
| internal let clang_BlockCommandComment_getNumArgs: @convention(c) (CXComment) -> (UInt32) = library.loadSymbol("clang_BlockCommandComment_getNumArgs") | ||
| internal let clang_BlockCommandComment_getArgText: @convention(c) (CXComment, UInt32) -> (CXString) = library.loadSymbol("clang_BlockCommandComment_getArgText") | ||
| internal let clang_BlockCommandComment_getParagraph: @convention(c) (CXComment) -> (CXComment) = library.loadSymbol("clang_BlockCommandComment_getParagraph") | ||
| internal let clang_ParamCommandComment_getParamName: @convention(c) (CXComment) -> (CXString) = library.loadSymbol("clang_ParamCommandComment_getParamName") | ||
| internal let clang_ParamCommandComment_isParamIndexValid: @convention(c) (CXComment) -> (UInt32) = library.loadSymbol("clang_ParamCommandComment_isParamIndexValid") | ||
| internal let clang_ParamCommandComment_getParamIndex: @convention(c) (CXComment) -> (UInt32) = library.loadSymbol("clang_ParamCommandComment_getParamIndex") | ||
| internal let clang_ParamCommandComment_isDirectionExplicit: @convention(c) (CXComment) -> (UInt32) = library.loadSymbol("clang_ParamCommandComment_isDirectionExplicit") | ||
| internal let clang_ParamCommandComment_getDirection: @convention(c) (CXComment) -> (CXCommentParamPassDirection) = library.loadSymbol("clang_ParamCommandComment_getDirection") | ||
| internal let clang_TParamCommandComment_getParamName: @convention(c) (CXComment) -> (CXString) = library.loadSymbol("clang_TParamCommandComment_getParamName") | ||
| internal let clang_TParamCommandComment_isParamPositionValid: @convention(c) (CXComment) -> (UInt32) = library.loadSymbol("clang_TParamCommandComment_isParamPositionValid") | ||
| internal let clang_TParamCommandComment_getDepth: @convention(c) (CXComment) -> (UInt32) = library.loadSymbol("clang_TParamCommandComment_getDepth") | ||
| internal let clang_TParamCommandComment_getIndex: @convention(c) (CXComment, UInt32) -> (UInt32) = library.loadSymbol("clang_TParamCommandComment_getIndex") | ||
| internal let clang_VerbatimBlockLineComment_getText: @convention(c) (CXComment) -> (CXString) = library.loadSymbol("clang_VerbatimBlockLineComment_getText") | ||
| internal let clang_VerbatimLineComment_getText: @convention(c) (CXComment) -> (CXString) = library.loadSymbol("clang_VerbatimLineComment_getText") | ||
| internal let clang_HTMLTagComment_getAsString: @convention(c) (CXComment) -> (CXString) = library.loadSymbol("clang_HTMLTagComment_getAsString") | ||
| internal let clang_FullComment_getAsHTML: @convention(c) (CXComment) -> (CXString) = library.loadSymbol("clang_FullComment_getAsHTML") | ||
| internal let clang_FullComment_getAsXML: @convention(c) (CXComment) -> (CXString) = library.loadSymbol("clang_FullComment_getAsXML") |
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