1 29 30 package com.caucho.quercus.expr; 31 32 import com.caucho.quercus.Location; 33 import com.caucho.quercus.env.Env; 34 import com.caucho.quercus.env.Value; 35 36 39 public class LeftShiftExpr extends BinaryExpr { 40 public LeftShiftExpr(Location location, Expr left, Expr right) 41 { 42 super(location, left, right); 43 } 44 45 public LeftShiftExpr(Expr left, Expr right) 46 { 47 super(left, right); 48 } 49 50 53 public boolean isLong() 54 { 55 return true; 56 } 57 58 65 public Value eval(Env env) 66 { 67 Value lValue = _left.eval(env); 68 Value rValue = _right.eval(env); 69 70 return lValue.lshift(rValue); 71 } 72 73 public String toString() 74 { 75 return "(" + _left + " << " + _right + ")"; 76 } 77 } 78 79 | Popular Tags |