001/*
002 * Copyright 2002-2016 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      https://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.springframework.expression.spel.ast;
018
019import org.springframework.asm.MethodVisitor;
020import org.springframework.expression.TypedValue;
021import org.springframework.expression.spel.CodeFlow;
022
023/**
024 * Expression language AST node that represents a float literal.
025 *
026 * @author Satyapal Reddy
027 * @author Andy Clement
028 * @since 3.2
029 */
030public class FloatLiteral extends Literal {
031
032        private final TypedValue value;
033
034
035        public FloatLiteral(String payload, int pos, float value) {
036                super(payload, pos);
037                this.value = new TypedValue(value);
038                this.exitTypeDescriptor = "F";
039        }
040
041
042        @Override
043        public TypedValue getLiteralValue() {
044                return this.value;
045        }
046
047        @Override
048        public boolean isCompilable() {
049                return true;
050        }
051        
052        @Override
053        public void generateCode(MethodVisitor mv, CodeFlow cf) {
054                mv.visitLdcInsn(this.value.getValue());
055                cf.pushDescriptor(this.exitTypeDescriptor);
056        }
057
058}