/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
/**
* Implementation of two javascript functions that can be used to resolve or reject a js promise.
*/
package com.facebook.react.bridge;
import javax.annotation.Nullable;
public class PromiseImpl implements Promise {
private static final String DEFAULT_ERROR = "EUNSPECIFIED";
private @Nullable Callback mResolve;
private @Nullable Callback mReject;
public PromiseImpl(@Nullable Callback resolve, @Nullable Callback reject) {
mResolve = resolve;
mReject = reject;
}
@Override
public void resolve(Object value) {
if (mResolve != null) {
mResolve.invoke(value);
}
}
@Override
public void reject(String code, String message) {
reject(code, message, /*Throwable*/null);
}
@Override
@Deprecated
public void reject(String message) {
reject(DEFAULT_ERROR, message, /*Throwable*/null);
}
@Override
public void reject(String code, Throwable e) {
reject(code, e.getMessage(), e);
}
@Override
public void reject(Throwable e) {
reject(DEFAULT_ERROR, e.getMessage(), e);
}
@Override
public void reject(String code, String message, @Nullable Throwable e) {
if (mReject != null) {
if (code == null) {
code = DEFAULT_ERROR;
}
// The JavaScript side expects a map with at least the error message.
// It is possible to expose all kind of information. It will be available on the JS
// error instance.
WritableNativeMap errorInfo = new WritableNativeMap();
errorInfo.putString("code", code);
errorInfo.putString("message", message);
// TODO(8850038): add the stack trace info in, need to figure out way to serialize that
mReject.invoke(errorInfo);
}
}
}