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Remove parallel invocation of AST parsing #16

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Merged
max-leuthaeuser merged 3 commits into from
Aug 13, 2025
Merged

Remove parallel invocation of AST parsing #16

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15ca3d3
Remove parallel invocation of AST parsing
max-leuthaeuser Aug 13, 2025
59087c8
Fix for background writing
max-leuthaeuser Aug 13, 2025
59a1dce
remove
max-leuthaeuser Aug 13, 2025
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34 changes: 9 additions & 25 deletions Sources/SwiftAstGenLib/SwiftAstGenerator.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -5,10 +5,6 @@ public class SwiftAstGenerator {
private var srcDir: URL
private var outputDir: URL
private var prettyPrint: Bool
private let availableProcessors = ProcessInfo.processInfo.activeProcessorCount

// Private serial queue for directory creation operations
private let fileQueue = DispatchQueue(label: "io.joern.swiftastgen")

public init(srcDir: URL, outputDir: URL, prettyPrint: Bool) throws {
self.srcDir = srcDir
Expand Down Expand Up @@ -47,34 +43,26 @@ public class SwiftAstGenerator {
.appendingPathExtension("json")
let outfileDirUrl = outFileUrl.deletingLastPathComponent()

do {
try fileQueue.sync {
try FileManager.default.createDirectory(
atPath: outfileDirUrl.path,
withIntermediateDirectories: true,
attributes: nil
)
}
} catch {}
if !FileManager.default.fileExists(atPath: outfileDirUrl.path) {
try FileManager.default.createDirectory(
atPath: outfileDirUrl.path,
withIntermediateDirectories: true,
attributes: nil
)
}

try astJsonString.write(
to: outFileUrl,
atomically: true,
encoding: String.Encoding.utf8
)

print("Generated AST for file: `\(fileUrl.path)`")
print("Generated AST for file: `\(fileUrl.path)`")
} catch {
print("Parsing failed for file: `\(fileUrl.path)` (\(error))")
}
}

private func iterateSwiftFiles(at url: URL) {
let queue = OperationQueue()
queue.name = "SwiftAstGen"
queue.qualityOfService = .userInitiated
queue.maxConcurrentOperationCount = availableProcessors

if let enumerator = FileManager.default.enumerator(
at: url,
includingPropertiesForKeys: [.isRegularFileKey],
Expand All @@ -84,15 +72,11 @@ public class SwiftAstGenerator {
if fileAttributes.isRegularFile! && fileURL.pathExtension == "swift" {
let relativeFilePath = fileURL.relativePath(from: srcDir)!
if !ignoreDirectory(name: "/\(relativeFilePath)") {
queue.addOperation {
self.parseFile(fileUrl: fileURL)
}
self.parseFile(fileUrl: fileURL)
}
}
}
}

queue.waitUntilAllOperationsAreFinished()
}

public func generate() throws {
Expand Down
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