com.google.gwt.dev.js.JsForceInliningChecker Maven / Gradle / Ivy
/*
* Copyright 2008 Google Inc.
*
* 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.gwt.dev.js;
import com.google.gwt.core.ext.TreeLogger;
import com.google.gwt.core.ext.TreeLogger.Type;
import com.google.gwt.core.ext.UnableToCompleteException;
import com.google.gwt.dev.common.InliningMode;
import com.google.gwt.dev.jjs.ast.JMethod;
import com.google.gwt.dev.jjs.impl.JavaToJavaScriptMap;
import com.google.gwt.dev.js.ast.JsContext;
import com.google.gwt.dev.js.ast.JsFunction;
import com.google.gwt.dev.js.ast.JsProgram;
import com.google.gwt.dev.js.ast.JsVisitor;
/**
* Makes sure methods marked with @ForceInline are actually inlined in optimized mode.
*/
public class JsForceInliningChecker {
private static final String NAME = JsForceInliningChecker.class.getSimpleName();
/**
* Determines if the evaluation of a JsNode may be affected by side effects.
*/
private static class ForceInliningCheckerVisitor extends JsVisitor {
private final TreeLogger logger;
private boolean error = false;
private JavaToJavaScriptMap javaToJavaScriptMap;
private ForceInliningCheckerVisitor(
TreeLogger logger, JavaToJavaScriptMap javaToJavaScriptMap) {
this.logger = logger;
this.javaToJavaScriptMap = javaToJavaScriptMap;
}
@Override
public void endVisit(JsFunction x, JsContext ctx) {
if (x.getInliningMode() == InliningMode.FORCE_INLINE) {
JMethod originalMethod = javaToJavaScriptMap.nameToMethod(x.getName());
String methodName = originalMethod != null ? originalMethod.toString() :
x.getName().getShortIdent();
logger.log(Type.ERROR, "Function " + methodName
+ " is marked as @ForceInline but it could not be inlined");
error = true;
}
}
}
/**
* Static entry point used by JavaToJavaScriptCompiler.
*/
public static void check(TreeLogger logger, JavaToJavaScriptMap javaToJavaScriptMap,
JsProgram program) throws UnableToCompleteException {
ForceInliningCheckerVisitor visitor =
new ForceInliningCheckerVisitor(logger, javaToJavaScriptMap);
visitor.accept(program);
if (visitor.error) {
throw new UnableToCompleteException();
}
}
/**
* Utility class.
*/
private JsForceInliningChecker() {
}
}