/// <summary>
/// Returns transpiled javascript according to the specified options.
/// </summary>
/// <param name="options">Transpile options</param>
/// <returns>The output of the transpilation process</returns>
public Task <TranspileOutput> Transpile(TranspileOptions options)
{
if (m_isDisposed)
{
throw new ObjectDisposedException(nameof(TypeScriptTranspiler));
}
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
return(Task.Factory.StartNew(new Func <object, TranspileOutput>((transpilerOptions) =>
{
return TranspileInternal(transpilerOptions as TranspileOptions);
}),
options,
CancellationToken.None,
TaskCreationOptions.DenyChildAttach,
new ThreadPerTaskScheduler()));
}
private TranspileOutput TranspileInternal(TranspileOptions options)
{
using (var rt = m_runtimeFactory.CreateRuntime(JavaScriptRuntimeAttributes.DisableBackgroundWork | JavaScriptRuntimeAttributes.DisableEval))
using (var ctx = rt.CreateContext())
using (ctx.Scope())
{
var tsBuffer = GetSerializedTypeScriptCompiler(ctx);
var fnTypeScript = ctx.ParseSerializedScript(tsBuffer, () => EmbeddedResourceHelper.LoadResource(ResourceName), "[typescript]");
//Create the compiler options object that specifies the compiler options.
var objCompilerOptions = ctx.CreateObject();
objCompilerOptions["target"] = ctx.CreateNumber((int)options.CompilerOptions.Target);
objCompilerOptions["module"] = ctx.CreateNumber((int)options.CompilerOptions.Module);
objCompilerOptions["jsx"] = ctx.CreateNumber((int)options.CompilerOptions.Jsx);
if (options.CompilerOptions.ImportHelpers.HasValue)
{
objCompilerOptions["importHelpers"] = options.CompilerOptions.ImportHelpers.Value ? ctx.True : ctx.False;
}
//Create the transpile options object that specifies the transpilation options
var objTranspileOptions = ctx.CreateObject();
objTranspileOptions["compilerOptions"] = objCompilerOptions;
objTranspileOptions["fileName"] = ctx.CreateString(options.FileName);
////All systems go. Perform the transpilation.
var jsScriptToTranspile = ctx.CreateString(options.Script);
var jsTs = fnTypeScript.Call <JsObject>();
var fnTranspileModule = jsTs.GetProperty <JsFunction>("transpileModule");
var objTranspiled = fnTranspileModule.Call <JsObject>(jsTs, jsScriptToTranspile, objTranspileOptions);
var output = new TranspileOutput
{
OutputText = objTranspiled["outputText"].ToString(),
SourceMapText = objTranspiled["sourceMapText"].ToString()
};
return(output);
}
}
