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// 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.lcovmerger;
import com.google.auto.value.AutoValue;
/**
* Stores branch coverage information.
*/
@AutoValue
abstract class BranchCoverage {
static BranchCoverage create(int lineNumber, int nrOfExecutions) {
return new AutoValue_BranchCoverage(
lineNumber, /*blockNumber=*/ "", /*branchNumber=*/ "", nrOfExecutions);
}
static BranchCoverage createWithBlockAndBranch(
int lineNumber, String blockNumber, String branchNumber, int nrOfExecutions) {
return new AutoValue_BranchCoverage(lineNumber, blockNumber, branchNumber, nrOfExecutions);
}
/**
* Merges two given instances of {@link BranchCoverage}.
*
* Calling {@code lineNumber()}, {@code blockNumber()} and {@code branchNumber()} must return the
* same values for {@code first} and {@code second}.
*/
static BranchCoverage merge(BranchCoverage first, BranchCoverage second) {
assert first.lineNumber() == second.lineNumber();
assert first.blockNumber().equals(second.blockNumber());
assert first.branchNumber().equals(second.branchNumber());
return createWithBlockAndBranch(
first.lineNumber(),
first.blockNumber(),
first.branchNumber(),
first.nrOfExecutions() + second.nrOfExecutions());
}
abstract int lineNumber();
// The two numbers below should be -1 for non-gcc emitted coverage (e.g. Java).
abstract String blockNumber(); // internal gcc internal ID for the branch
abstract String branchNumber(); // internal gcc internal ID for the branch
abstract int nrOfExecutions();
boolean wasExecuted() {
return nrOfExecutions() > 0;
}
}
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