com.google.javascript.jscomp.serialization.MalformedTypedAstException Maven / Gradle / Ivy

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Closure Compiler is a JavaScript optimizing compiler. It parses your JavaScript, analyzes it, removes dead code and rewrites and minimizes what's left. It also checks syntax, variable references, and types, and warns about common JavaScript pitfalls. It is used in many of Google's JavaScript apps, including Gmail, Google Web Search, Google Maps, and Google Docs.

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/*
 * Copyright 2020 The Closure Compiler Authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.javascript.jscomp.serialization;

import org.jspecify.nullness.Nullable;

/**
 * Emitted when deserialization sees a TypedAst with semantic errors.
 *
 * This excpetion means a TypedAst is flawed in some way. It is distinct from other kinds of
 * expections because it describes a user error, rather than a bug in deserialization. Most likely,
 * the tool that generated the serialized data is faulty.
 *
 * This exception says nothing about the byte-level encoding or parsing of the input data.
 * Instead, it means that TypedAst parsed from those bytes can't be translated into the compiler's
 * internal representation.
 */
public final class MalformedTypedAstException extends RuntimeException {

  static void checkWellFormed(boolean condition, String description) {
    if (!condition) {
      throw new MalformedTypedAstException(description);
    }
  }

  static void checkWellFormed(boolean condition, String description, @Nullable Object param) {
    if (!condition) {
      String message = description + ": " + param;
      throw new MalformedTypedAstException(message);
    }
  }

  public MalformedTypedAstException(Object msg) {
    super(msg.toString());
  }

  public MalformedTypedAstException(Object msg, Throwable cause) {
    super(msg.toString(), cause);
  }
}