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/*******************************************************************************
* Copyright (c) 2009, 2019 Mountainminds GmbH & Co. KG and Contributors
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Evgeny Mandrikov - initial API and implementation
*
*******************************************************************************/
package org.jacoco.core.internal.analysis.filter;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.tree.MethodNode;
/**
* Filters synthetic methods unless they represent bodies of lambda expressions.
*/
public final class SyntheticFilter implements IFilter {
private static boolean isScalaClass(final IFilterContext context) {
return context.getClassAttributes().contains("ScalaSig")
|| context.getClassAttributes().contains("Scala");
}
public void filter(final MethodNode methodNode,
final IFilterContext context, final IFilterOutput output) {
if ((methodNode.access & Opcodes.ACC_SYNTHETIC) == 0) {
return;
}
if (methodNode.name.startsWith("lambda$")) {
return;
}
if (isScalaClass(context)) {
if (methodNode.name.startsWith("$anonfun$")) {
return;
}
}
if (KotlinGeneratedFilter.isKotlinClass(context)) {
if (KotlinDefaultArgumentsFilter
.isDefaultArgumentsMethod(methodNode)) {
return;
}
if (KotlinDefaultArgumentsFilter
.isDefaultArgumentsConstructor(methodNode)) {
return;
}
if (KotlinCoroutineFilter.isLastArgumentContinuation(methodNode)) {
return;
}
}
output.ignore(methodNode.instructions.getFirst(),
methodNode.instructions.getLast());
}
}
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