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// Copyright 2016 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.android.resources;
import com.google.common.base.MoreObjects;
import java.io.IOException;
import java.io.Writer;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.commons.InstructionAdapter;
/** Models an int field initializer. */
public final class IntFieldInitializer implements FieldInitializer {
private final int value;
private static final String DESC = "I";
private IntFieldInitializer(int value) {
this.value = value;
}
public static FieldInitializer of(String value) {
return of(Integer.decode(value));
}
public static IntFieldInitializer of(int value) {
return new IntFieldInitializer(value);
}
@Override
public boolean writeFieldDefinition(
String fieldName, ClassWriter cw, int accessLevel, boolean isFinal) {
cw.visitField(accessLevel, fieldName, DESC, null, isFinal ? value : null).visitEnd();
return !isFinal;
}
@Override
public int writeCLInit(String fieldName, InstructionAdapter insts, String className) {
insts.iconst(value);
insts.putstatic(className, fieldName, DESC);
// Just needs one stack slot for the iconst.
return 1;
}
@Override
public void writeInitSource(String fieldName, Writer writer, boolean finalFields)
throws IOException {
writer.write(
String.format(
" public static %sint %s = 0x%x;\n",
finalFields ? "final " : "", fieldName, value));
}
@Override
public String toString() {
return MoreObjects.toStringHelper(getClass()).add("value", value).toString();
}
@Override
public int hashCode() {
return value;
}
@Override
public boolean equals(Object obj) {
if (obj instanceof IntFieldInitializer) {
IntFieldInitializer other = (IntFieldInitializer) obj;
return value == other.value;
}
return false;
}
}
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