35 lines
1.0 KiB
Swift
35 lines
1.0 KiB
Swift
import JavaScriptCore
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class JSService {
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let context = JSContext()
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let shared = JSService()
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let require: @convention(block) (String) -> (JSValue?) = { path in
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let expandedPath = NSString(string: path).expandingTildeInPath
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// Return void or throw an error here.
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guard FileManager.default.fileExists(atPath: expandedPath)
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else { debugPrint("Require: filename \(expandedPath) does not exist")
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return nil }
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guard let fileContent = try? String(contentsOfFile: expandedPath)
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else { return nil }
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return JSService.shared.context.evaluateScript(fileContent)
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}
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init() {
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self.context.exceptionHandler = { context, exception in
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print(exception!.toString())
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}
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self.context.setObject(self.require,
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forKeyedSubscript: "require" as NSString)
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}
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func repl(_ string: String) -> String {
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return self.context.evaluateScript(string).toString()
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}
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}
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