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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
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 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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package sun.tools.tree;

import sun.tools.java.*;
import sun.tools.asm.Assembler;
import sun.tools.asm.Label;

WARNING: The contents of this source file are not part of any supported API. Code that depends on them does so at its own risk: they are subject to change or removal without notice.
/** * WARNING: The contents of this source file are not part of any * supported API. Code that depends on them does so at its own risk: * they are subject to change or removal without notice. */
public class GreaterExpression extends BinaryCompareExpression {
constructor
/** * constructor */
public GreaterExpression(long where, Expression left, Expression right) { super(GT, where, left, right); }
Evaluate
/** * Evaluate */
Expression eval(int a, int b) { return new BooleanExpression(where, a > b); } Expression eval(long a, long b) { return new BooleanExpression(where, a > b); } Expression eval(float a, float b) { return new BooleanExpression(where, a > b); } Expression eval(double a, double b) { return new BooleanExpression(where, a > b); }
Simplify
/** * Simplify */
Expression simplify() { if (left.isConstant() && !right.isConstant()) { return new LessExpression(where, right, left); } return this; }
Code
/** * Code */
void codeBranch(Environment env, Context ctx, Assembler asm, Label lbl, boolean whenTrue) { left.codeValue(env, ctx, asm); switch (left.type.getTypeCode()) { case TC_INT: if (!right.equals(0)) { right.codeValue(env, ctx, asm); asm.add(where, whenTrue ? opc_if_icmpgt : opc_if_icmple, lbl, whenTrue); return; } break; case TC_LONG: right.codeValue(env, ctx, asm); asm.add(where, opc_lcmp); break; case TC_FLOAT: right.codeValue(env, ctx, asm); asm.add(where, opc_fcmpl); break; case TC_DOUBLE: right.codeValue(env, ctx, asm); asm.add(where, opc_dcmpl); break; default: throw new CompilerError("Unexpected Type"); } asm.add(where, whenTrue ? opc_ifgt : opc_ifle, lbl, whenTrue); } }