| // Copyright 2018 The Bazel Authors. All rights reserved. |
| // |
| // 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.devtools.build.lib.analysis.skylark; |
| |
| import com.google.devtools.build.lib.packages.RuleClass.ConfiguredTargetFactory.RuleErrorException; |
| import com.google.devtools.build.lib.packages.RuleErrorConsumer; |
| import com.google.devtools.build.lib.syntax.EvalException; |
| |
| /** |
| * {@link RuleErrorConsumer} for Native implementations of Skylark APIs. |
| * |
| * <p>This class proxies reported errors and warnings to a proxy {@link RuleErrorConsumer}, except |
| * that it suppresses all cases of actually throwing exceptions until this reporter is closed. |
| * |
| * <p>This class is AutoClosable, to ensure that {@link RuleErrorException} are checked and handled |
| * before leaving native code. The {@link #close()} method will only throw {@link EvalException}, |
| * properly wrapping any {@link RuleErrorException} instances if needed. |
| */ |
| public class SkylarkErrorReporter implements AutoCloseable, RuleErrorConsumer { |
| private final RuleErrorConsumer ruleErrorConsumer; |
| |
| public static SkylarkErrorReporter from(RuleErrorConsumer ruleErrorConsumer) { |
| return new SkylarkErrorReporter(ruleErrorConsumer); |
| } |
| |
| private SkylarkErrorReporter(RuleErrorConsumer ruleErrorConsumer) { |
| this.ruleErrorConsumer = ruleErrorConsumer; |
| } |
| |
| @Override |
| public void close() throws EvalException { |
| try { |
| assertNoErrors(); |
| } catch (RuleErrorException e) { |
| throw new EvalException(null, "error occurred while evaluating builtin function", e); |
| } |
| } |
| |
| @Override |
| public void ruleWarning(String message) { |
| ruleErrorConsumer.ruleWarning(message); |
| } |
| |
| @Override |
| public void ruleError(String message) { |
| ruleErrorConsumer.ruleError(message); |
| } |
| |
| @Override |
| public void attributeWarning(String attrName, String message) { |
| ruleErrorConsumer.attributeWarning(attrName, message); |
| } |
| |
| @Override |
| public void attributeError(String attrName, String message) { |
| ruleErrorConsumer.attributeError(attrName, message); |
| } |
| |
| @Override |
| public boolean hasErrors() { |
| return ruleErrorConsumer.hasErrors(); |
| } |
| } |