[Macros] Add support for wasm macros #73031
There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,137 @@ | ||
| //===----------------------------------------------------------------------===// | ||
| // | ||
| // This source file is part of the Swift open source project | ||
| // | ||
| // Copyright (c) 2024 Apple Inc. and the Swift project authors | ||
| // Licensed under Apache License v2.0 with Runtime Library Exception | ||
| // | ||
| // See http://swift.org/LICENSE.txt for license information | ||
| // See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
|
|
||
| import SwiftCompilerPluginMessageHandling | ||
| import swiftLLVMJSON | ||
| import CSwiftPluginServer | ||
|
|
||
| public final class PluginHostConnection: MessageConnection { | ||
| let handle: UnsafeRawPointer | ||
| public init() throws { | ||
| var errorMessage: UnsafePointer<CChar>? = nil | ||
| guard let handle = PluginServer_createConnection(&errorMessage) else { | ||
| throw PluginServerError(message: String(cString: errorMessage!)) | ||
| } | ||
| self.handle = handle | ||
| } | ||
|
|
||
| deinit { | ||
| PluginServer_destroyConnection(self.handle) | ||
| } | ||
|
|
||
| public func sendMessage<TX: Encodable>(_ message: TX) throws { | ||
| try LLVMJSON.encoding(message) { buffer in | ||
| try self.sendMessageData(buffer) | ||
| } | ||
| } | ||
|
|
||
| public func waitForNextMessage<RX: Decodable>(_ type: RX.Type) throws -> RX? { | ||
| return try self.withReadingMessageData { jsonData in | ||
| try LLVMJSON.decode(RX.self, from: jsonData) | ||
| } | ||
| } | ||
|
|
||
| /// Send a serialized message to the message channel. | ||
| private func sendMessageData(_ data: UnsafeBufferPointer<Int8>) throws { | ||
| // Write the header (a 64-bit length field in little endian byte order). | ||
| var header: UInt64 = UInt64(data.count).littleEndian | ||
| let writtenSize = try Swift.withUnsafeBytes(of: &header) { buffer in | ||
| try self.write(buffer: UnsafeRawBufferPointer(buffer)) | ||
| } | ||
| guard writtenSize == MemoryLayout.size(ofValue: header) else { | ||
| throw PluginServerError(message: "failed to write message header") | ||
| } | ||
|
|
||
| // Write the body. | ||
| guard try self.write(buffer: UnsafeRawBufferPointer(data)) == data.count else { | ||
| throw PluginServerError(message: "failed to write message body") | ||
| } | ||
| } | ||
|
|
||
| /// Read a serialized message from the message channel and call the 'body' | ||
| /// with the data. | ||
| private func withReadingMessageData<R>(_ body: (UnsafeBufferPointer<Int8>) throws -> R) throws -> R? { | ||
| // Read the header (a 64-bit length field in little endian byte order). | ||
| var header: UInt64 = 0 | ||
| let readSize = try Swift.withUnsafeMutableBytes(of: &header) { buffer in | ||
| try self.read(into: UnsafeMutableRawBufferPointer(buffer)) | ||
| } | ||
| guard readSize == MemoryLayout.size(ofValue: header) else { | ||
| if readSize == 0 { | ||
| // The host closed the pipe. | ||
| return nil | ||
| } | ||
| // Otherwise, some error happened. | ||
| throw PluginServerError(message: "failed to read message header") | ||
| } | ||
|
|
||
| // Read the body. | ||
| let count = Int(UInt64(littleEndian: header)) | ||
| let data = UnsafeMutableBufferPointer<Int8>.allocate(capacity: count) | ||
| defer { data.deallocate() } | ||
| guard try self.read(into: UnsafeMutableRawBufferPointer(data)) == count else { | ||
| throw PluginServerError(message: "failed to read message body") | ||
| } | ||
|
|
||
| // Invoke the handler. | ||
| return try body(UnsafeBufferPointer(data)) | ||
| } | ||
|
|
||
| /// Write the 'buffer' to the message channel. | ||
| /// Returns the number of bytes succeeded to write. | ||
| private func write(buffer: UnsafeRawBufferPointer) throws -> Int { | ||
| var bytesToWrite = buffer.count | ||
| guard bytesToWrite > 0 else { | ||
| return 0 | ||
| } | ||
| var ptr = buffer.baseAddress! | ||
|
|
||
| while (bytesToWrite > 0) { | ||
| let writtenSize = PluginServer_write(handle, ptr, bytesToWrite) | ||
| if (writtenSize <= 0) { | ||
| // error e.g. broken pipe. | ||
| break | ||
| } | ||
| ptr = ptr.advanced(by: writtenSize) | ||
| bytesToWrite -= Int(writtenSize) | ||
| } | ||
| return buffer.count - bytesToWrite | ||
| } | ||
|
|
||
| /// Read data from the message channel into the 'buffer' up to 'buffer.count' bytes. | ||
| /// Returns the number of bytes succeeded to read. | ||
| private func read(into buffer: UnsafeMutableRawBufferPointer) throws -> Int { | ||
| var bytesToRead = buffer.count | ||
| guard bytesToRead > 0 else { | ||
| return 0 | ||
| } | ||
| var ptr = buffer.baseAddress! | ||
|
|
||
| while bytesToRead > 0 { | ||
| let readSize = PluginServer_read(handle, ptr, bytesToRead) | ||
| if (readSize <= 0) { | ||
| // 0: EOF (the host closed), -1: Broken pipe (the host crashed?) | ||
| break; | ||
| } | ||
| ptr = ptr.advanced(by: readSize) | ||
| bytesToRead -= readSize | ||
| } | ||
| return buffer.count - bytesToRead | ||
| } | ||
| } | ||
|
|
||
| public struct PluginServerError: Error, CustomStringConvertible { | ||
| public var description: String | ||
| public init(message: String) { | ||
| self.description = message | ||
| } | ||
| } |
Oops, something went wrong.
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
I recommend using
llvm::sys::path::extension() == ".wasm"hereThere was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
Actually, when taking @kateinoigakukun 's advice, we won't need this code because the plugin server will handle it.