Runtime.deserialize constructor

Implementation

factory Runtime.deserialize(Object serialized) {
  if (serialized is String) {
    return builtIn.firstWhere(
      (platform) => platform.identifier == serialized,
    );
  }

  var map = serialized as Map;
  var name = map['name'] as String;
  var identifier = map['identifier'] as String;
  var defaultCompiler = Compiler.deserialize(
    map['defaultCompiler'] as Object,
  );
  var supportedCompilers = [
    for (var compiler in map['supportedCompilers'] as List)
      Compiler.deserialize(compiler as Object),
  ];

  var parent = map['parent'];
  if (parent != null) {
    // Note that the returned platform's [parent] won't necessarily be `==` to
    // a separately-deserialized parent platform. This should be fine, though,
    // since we only deserialize platforms in the remote execution context
    // where they're only used to evaluate platform selectors.
    return Runtime._child(
      name,
      identifier,
      defaultCompiler,
      supportedCompilers,
      Runtime.deserialize(parent as Object),
    );
  }

  return Runtime(
    name,
    identifier,
    defaultCompiler,
    supportedCompilers,
    isDartVM: map['isDartVM'] as bool,
    isBrowser: map['isBrowser'] as bool,
    isBlink: map['isBlink'] as bool,
    isHeadless: map['isHeadless'] as bool,
  );
}