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Diffstat (limited to 'org.jacoco.core/src/org/jacoco/core/internal/analysis/filter/KotlinDefaultMethodsFilter.java')
-rw-r--r-- | org.jacoco.core/src/org/jacoco/core/internal/analysis/filter/KotlinDefaultMethodsFilter.java | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/org.jacoco.core/src/org/jacoco/core/internal/analysis/filter/KotlinDefaultMethodsFilter.java b/org.jacoco.core/src/org/jacoco/core/internal/analysis/filter/KotlinDefaultMethodsFilter.java new file mode 100644 index 00000000..65d783a1 --- /dev/null +++ b/org.jacoco.core/src/org/jacoco/core/internal/analysis/filter/KotlinDefaultMethodsFilter.java @@ -0,0 +1,46 @@ +/******************************************************************************* + * Copyright (c) 2009, 2020 Mountainminds GmbH & Co. KG and Contributors + * This program and the accompanying materials are made available under + * the terms of the Eclipse Public License 2.0 which is available at + * http://www.eclipse.org/legal/epl-2.0 + * + * SPDX-License-Identifier: EPL-2.0 + * + * Contributors: + * Evgeny Mandrikov - initial API and implementation + * + *******************************************************************************/ +package org.jacoco.core.internal.analysis.filter; + +import org.objectweb.asm.Opcodes; +import org.objectweb.asm.tree.MethodInsnNode; +import org.objectweb.asm.tree.MethodNode; + +/** + * Filters methods that Kotlin compiler generates for non-overridden + * non-abstract methods of interfaces. + */ +final class KotlinDefaultMethodsFilter implements IFilter { + + public void filter(final MethodNode methodNode, + final IFilterContext context, final IFilterOutput output) { + if (!KotlinGeneratedFilter.isKotlinClass(context)) { + return; + } + new Matcher().match(methodNode, output); + } + + private static class Matcher extends AbstractMatcher { + private void match(final MethodNode methodNode, + final IFilterOutput output) { + firstIsALoad0(methodNode); + nextIs(Opcodes.INVOKESTATIC); + if (cursor != null && ((MethodInsnNode) cursor).owner + .endsWith("$DefaultImpls")) { + output.ignore(methodNode.instructions.getFirst(), + methodNode.instructions.getLast()); + } + } + } + +} |