diff options
Diffstat (limited to 'plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/modules/decompiler/exps/IfExprent.java')
-rw-r--r-- | plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/modules/decompiler/exps/IfExprent.java | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/modules/decompiler/exps/IfExprent.java b/plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/modules/decompiler/exps/IfExprent.java new file mode 100644 index 000000000000..66e63c0e7fc6 --- /dev/null +++ b/plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/modules/decompiler/exps/IfExprent.java @@ -0,0 +1,145 @@ +/* + * Copyright 2000-2014 JetBrains s.r.o. + * + * 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 org.jetbrains.java.decompiler.modules.decompiler.exps; + +import org.jetbrains.java.decompiler.struct.gen.VarType; +import org.jetbrains.java.decompiler.util.InterpreterUtil; +import org.jetbrains.java.decompiler.util.ListStack; + +import java.util.ArrayList; +import java.util.Arrays; +import java.util.List; + + +public class IfExprent extends Exprent { + + public static final int IF_EQ = 0; + public static final int IF_NE = 1; + public static final int IF_LT = 2; + public static final int IF_GE = 3; + public static final int IF_GT = 4; + public static final int IF_LE = 5; + + public static final int IF_NULL = 6; + public static final int IF_NONNULL = 7; + + public static final int IF_ICMPEQ = 8; + public static final int IF_ICMPNE = 9; + public static final int IF_ICMPLT = 10; + public static final int IF_ICMPGE = 11; + public static final int IF_ICMPGT = 12; + public static final int IF_ICMPLE = 13; + public static final int IF_ACMPEQ = 14; + public static final int IF_ACMPNE = 15; + + public static final int IF_CAND = 16; + public static final int IF_COR = 17; + + public static final int IF_NOT = 18; + public static final int IF_VALUE = 19; + + private static final int[] functypes = new int[]{ + FunctionExprent.FUNCTION_EQ, + FunctionExprent.FUNCTION_NE, + FunctionExprent.FUNCTION_LT, + FunctionExprent.FUNCTION_GE, + FunctionExprent.FUNCTION_GT, + FunctionExprent.FUNCTION_LE, + FunctionExprent.FUNCTION_EQ, + FunctionExprent.FUNCTION_NE, + FunctionExprent.FUNCTION_EQ, + FunctionExprent.FUNCTION_NE, + FunctionExprent.FUNCTION_LT, + FunctionExprent.FUNCTION_GE, + FunctionExprent.FUNCTION_GT, + FunctionExprent.FUNCTION_LE, + FunctionExprent.FUNCTION_EQ, + FunctionExprent.FUNCTION_NE, + FunctionExprent.FUNCTION_CADD, + FunctionExprent.FUNCTION_COR, + FunctionExprent.FUNCTION_BOOLNOT, + -1 + }; + + private Exprent condition; + + { + this.type = EXPRENT_IF; + } + + public IfExprent(int iftype, ListStack<Exprent> stack) { + + if (iftype <= IF_LE) { + stack.push(new ConstExprent(0, true)); + } + else if (iftype <= IF_NONNULL) { + stack.push(new ConstExprent(VarType.VARTYPE_NULL, null)); + } + + if (iftype == IF_VALUE) { + condition = stack.pop(); + } + else { + condition = new FunctionExprent(functypes[iftype], stack); + } + } + + private IfExprent(Exprent condition) { + this.condition = condition; + } + + public Exprent copy() { + return new IfExprent(condition.copy()); + } + + public List<Exprent> getAllExprents() { + List<Exprent> lst = new ArrayList<Exprent>(); + lst.add(condition); + return lst; + } + + public String toJava(int indent) { + return "if(" + condition.toJava(indent) + ")"; + } + + public boolean equals(Object o) { + if (o == this) return true; + if (o == null || !(o instanceof IfExprent)) return false; + + IfExprent ie = (IfExprent)o; + return InterpreterUtil.equalObjects(condition, ie.getCondition()); + } + + public void replaceExprent(Exprent oldexpr, Exprent newexpr) { + if (oldexpr == condition) { + condition = newexpr; + } + } + + public IfExprent negateIf() { + condition = new FunctionExprent(FunctionExprent.FUNCTION_BOOLNOT, + Arrays.asList(new Exprent[]{condition})); + return this; + } + + public Exprent getCondition() { + return condition; + } + + public void setCondition(Exprent condition) { + this.condition = condition; + } +} |