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/*
* Copyright (C) 2015 The Android Open Source Project
*
* 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 android.databinding.tool.expr;
import android.databinding.tool.reflection.ModelAnalyzer;
import android.databinding.tool.reflection.ModelClass;
import android.databinding.tool.writer.KCode;
import java.util.List;
public class UnaryExpr extends Expr {
final String mOp;
UnaryExpr(String op, Expr expr) {
super(expr);
mOp = op;
}
@Override
public String getInvertibleError() {
return getExpr().getInvertibleError();
}
@Override
protected String computeUniqueKey() {
return join(getOpStr(), getExpr().getUniqueKey());
}
@Override
public Expr generateInverse(ExprModel model, Expr value, String bindingClassName) {
return model.unary(mOp, getExpr().generateInverse(model, value, bindingClassName));
}
@Override
public Expr cloneToModel(ExprModel model) {
return model.unary(mOp, getExpr().cloneToModel(model));
}
@Override
protected KCode generateCode() {
return new KCode().app(getOp(), getExpr().toCode());
}
@Override
protected ModelClass resolveType(ModelAnalyzer modelAnalyzer) {
return getExpr().getResolvedType();
}
@Override
protected List<Dependency> constructDependencies() {
return constructDynamicChildrenDependencies();
}
private String getOpStr() {
switch (mOp.charAt(0)) {
case '~' : return "bitNot";
case '!' : return "logicalNot";
case '-' : return "unaryMinus";
case '+' : return "unaryPlus";
}
return mOp;
}
public String getOp() {
return mOp;
}
public Expr getExpr() {
return getChildren().get(0);
}
@Override
public String toString() {
return mOp + getExpr();
}
}
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