1 files changed, 102 insertions, 0 deletions
diff --git a/plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/struct/gen/MethodDescriptor.java b/plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/struct/gen/MethodDescriptor.java
new file mode 100644
index 000000000000..7dbc16c317f2
--- /dev/null
+++ b/plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/struct/gen/MethodDescriptor.java
@@ -0,0 +1,102 @@
+/*
+ * 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.struct.gen;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class MethodDescriptor {
+
+  public VarType[] params;
+
+  public VarType ret;
+
+
+  public static MethodDescriptor parseDescriptor(String mdescr) {
+
+    MethodDescriptor md = new MethodDescriptor();
+
+    List<String> lst = new ArrayList<String>();
+    String[] pars = mdescr.split("[()]");
+
+    String par = pars[1];
+
+    int indexFrom = -1, ind, index = 0;
+    int len = par.length();
+
+    for (; index < len; index++) {
+
+      switch (par.charAt(index)) {
+        case '[':
+          if (indexFrom < 0) {
+            indexFrom = index;
+          }
+          break;
+        case 'L':
+          ind = par.indexOf(";", index);
+          lst.add(par.substring(indexFrom < 0 ? index : indexFrom, ind + 1));
+          index = ind;
+          indexFrom = -1;
+          break;
+        default:
+          lst.add(par.substring(indexFrom < 0 ? index : indexFrom, index + 1));
+          indexFrom = -1;
+      }
+    }
+
+    lst.add(pars[2]);
+
+
+    md.params = new VarType[lst.size() - 1];
+
+    int i = 0;
+    for (; i < lst.size() - 1; i++) {
+      md.params[i] = new VarType(lst.get(i));
+    }
+    md.ret = new VarType(lst.get(i));
+
+    return md;
+  }
+
+  public String getDescriptor() {
+    String res = "(";
+
+    for (int j = 0; j < params.length; j++) {
+      res += params[j].toString();
+    }
+
+    res += ")" + ret.toString();
+
+    return res;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) return true;
+    if (o == null || !(o instanceof MethodDescriptor)) return false;
+
+    MethodDescriptor md = (MethodDescriptor)o;
+    return ret.equals(md.ret) && Arrays.equals(params, md.params);
+  }
+
+  @Override
+  public int hashCode() {
+    int result = ret.hashCode();
+    result = 31 * result + params.length;
+    return result;
+  }
+}