deps/v8/src/builtins/regexp-source.tq


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// Copyright 2019 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include 'src/builtins/builtins-regexp-gen.h'

namespace regexp {

  // ES6 21.2.5.10.
  // ES #sec-get-regexp.prototype.source
  transitioning javascript builtin RegExpPrototypeSourceGetter(
      js-implicit context: Context, receiver: JSAny)(): JSAny {
    typeswitch (receiver) {
      case (receiver: JSRegExp): {
        return receiver.source;
      }
      case (Object): {
      }
    }
    if (!IsReceiverInitialRegExpPrototype(receiver)) {
      const methodName: constexpr string = 'RegExp.prototype.source';
      ThrowTypeError(kRegExpNonRegExp, methodName);
    }
    IncrementUseCounter(context, SmiConstant(kRegExpPrototypeSourceGetter));
    return '(?:)';
  }
}