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Allow swift-parser-test to take input from stdin. #804

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Merged
merged 1 commit into from
Sep 16, 2022
Merged

Allow swift-parser-test to take input from stdin. #804

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29 changes: 17 additions & 12 deletions Sources/swift-parser-test/swift-parser-test.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -35,9 +35,14 @@ private func withTemporaryFile<T>(contents: [UInt8], body: (URL) throws -> T) th
return try body(tempFileURL)
}

private func getContentsOfSourceFile(at path: String) throws -> [UInt8] {
let sourceURL = URL(fileURLWithPath: path)
let source = try Data(contentsOf: sourceURL)
private func getContentsOfSourceFile(at path: String?) throws -> [UInt8] {
let source: Data
if let path = path {
let sourceURL = URL(fileURLWithPath: path)
source = try Data(contentsOf: sourceURL)
} else {
source = FileHandle.standardInput.readDataToEndOfFile()
}
return [UInt8](source)
}

Expand All @@ -54,14 +59,14 @@ class SwiftParserTest: ParsableCommand {
class VerifyRoundTrip: ParsableCommand {
required init() {}

init(sourceFile: String, swiftVersion: String?, enableBareSlashRegex: Bool?) {
init(sourceFile: String?, swiftVersion: String?, enableBareSlashRegex: Bool?) {
self.sourceFile = sourceFile
self.swiftVersion = swiftVersion
self.enableBareSlashRegex = enableBareSlashRegex
}

@Argument(help: "The source file that should be parsed")
var sourceFile: String
@Argument(help: "The source file that should be parsed; if omitted, use stdin")
var sourceFile: String?

@Option(name: .long, help: "Interpret input according to a specific Swift language version number")
var swiftVersion: String?
Expand Down Expand Up @@ -109,8 +114,8 @@ class VerifyRoundTrip: ParsableCommand {
class PrintDiags: ParsableCommand {
required init() {}

@Argument(help: "The source file that should be parsed")
var sourceFile: String
@Argument(help: "The source file that should be parsed; if omitted, use stdin")
var sourceFile: String?

@Option(name: .long, help: "Interpret input according to a specific Swift language version number")
var swiftVersion: String?
Expand Down Expand Up @@ -141,8 +146,8 @@ class PrintDiags: ParsableCommand {
class DumpTree: ParsableCommand {
required init() {}

@Argument(help: "The source file that should be parsed")
var sourceFile: String
@Argument(help: "The source file that should be parsed; if omitted, use stdin")
var sourceFile: String?

@Option(name: .long, help: "Interpret input according to a specific Swift language version number")
var swiftVersion: String?
Expand All @@ -167,8 +172,8 @@ class DumpTree: ParsableCommand {
class Reduce: ParsableCommand {
required init() {}

@Argument(help: "The test case that should be reduced")
var sourceFile: String
@Argument(help: "The test case that should be reduced; if omitted, use stdin")
var sourceFile: String?

@Option(name: .long, help: "Interpret input according to a specific Swift language version number")
var swiftVersion: String?
Expand Down