57 lines
1.5 KiB
Java
57 lines
1.5 KiB
Java
/**
|
|
* Copyright (c) 2011-2017, James Zhan 詹波 (jfinal@126.com).
|
|
*
|
|
* 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.jfinal.template.expr.ast;
|
|
|
|
import com.jfinal.template.stat.Location;
|
|
import com.jfinal.template.stat.ParseException;
|
|
import com.jfinal.template.stat.Scope;
|
|
|
|
/**
|
|
* Ternary
|
|
*/
|
|
public class Ternary extends Expr {
|
|
|
|
private Expr cond;
|
|
private Expr exprOne;
|
|
private Expr exprTwo;
|
|
|
|
/**
|
|
* cond ? exprOne : exprTwo
|
|
*/
|
|
public Ternary(Expr cond, Expr exprOne, Expr exprTwo, Location location) {
|
|
if (cond == null || exprOne == null || exprTwo == null) {
|
|
throw new ParseException("The parameter of ternary expression can not be blank", location);
|
|
}
|
|
this.cond = cond;
|
|
this.exprOne = exprOne;
|
|
this.exprTwo = exprTwo;
|
|
this.location = location;
|
|
}
|
|
|
|
public Object eval(Scope scope) {
|
|
return Logic.isTrue(cond.eval(scope)) ? exprOne.eval(scope) : exprTwo.eval(scope);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|