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;
+  }
+}