diff options
Diffstat (limited to 'plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/struct/gen/generics/GenericType.java')
| -rw-r--r-- | plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/struct/gen/generics/GenericType.java | 268 |
1 files changed, 268 insertions, 0 deletions
diff --git a/plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/struct/gen/generics/GenericType.java b/plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/struct/gen/generics/GenericType.java new file mode 100644 index 000000000000..160a0ac46035 --- /dev/null +++ b/plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/struct/gen/generics/GenericType.java @@ -0,0 +1,268 @@ +/* + * 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.generics; + +import org.jetbrains.java.decompiler.code.CodeConstants; + +import java.util.ArrayList; +import java.util.List; + +public class GenericType { + + public static final int WILDCARD_EXTENDS = 1; + public static final int WILDCARD_SUPER = 2; + public static final int WILDCARD_UNBOUND = 3; + public static final int WILDCARD_NO = 4; + + public int type; + + public int arraydim; + + public String value; + + + private List<GenericType> enclosingClasses = new ArrayList<GenericType>(); + + private List<GenericType> arguments = new ArrayList<GenericType>(); + + private List<Integer> wildcards = new ArrayList<Integer>(); + + + public GenericType(int type, int arraydim, String value) { + this.type = type; + this.arraydim = arraydim; + this.value = value; + } + + + public GenericType(String strtype) { + + parseSignature(strtype); + } + + private void parseSignature(String sig) { + + int index = 0; + while (index < sig.length()) { + + switch (sig.charAt(index)) { + case '[': + arraydim++; + break; + case 'T': + type = CodeConstants.TYPE_GENVAR; + value = sig.substring(index + 1, sig.length() - 1); + return; + case 'L': + type = CodeConstants.TYPE_OBJECT; + sig = sig.substring(index + 1, sig.length() - 1); + + while (true) { + String cl = getNextClassSignature(sig); + + String name = cl; + String args = null; + + int argfrom = cl.indexOf("<"); + if (argfrom >= 0) { + name = cl.substring(0, argfrom); + args = cl.substring(argfrom + 1, cl.length() - 1); + } + + if (cl.length() < sig.length()) { + sig = sig.substring(cl.length() + 1); // skip '.' + GenericType type = new GenericType(CodeConstants.TYPE_OBJECT, 0, name); + parseArgumentsList(args, type); + enclosingClasses.add(type); + } + else { + value = name; + parseArgumentsList(args, this); + break; + } + } + + return; + default: + value = sig.substring(index, index + 1); + type = getType(value.charAt(0)); + } + + index++; + } + } + + private static String getNextClassSignature(String value) { + + int counter = 0; + int index = 0; + + loop: + while (index < value.length()) { + switch (value.charAt(index)) { + case '<': + counter++; + break; + case '>': + counter--; + break; + case '.': + if (counter == 0) { + break loop; + } + } + + index++; + } + + return value.substring(0, index); + } + + private static void parseArgumentsList(String value, GenericType type) { + + if (value == null) { + return; + } + + while (value.length() > 0) { + + String tstr = getNextType(value); + int len = tstr.length(); + int wildcard = WILDCARD_NO; + + switch (tstr.charAt(0)) { + case '*': + wildcard = WILDCARD_UNBOUND; + break; + case '+': + wildcard = WILDCARD_EXTENDS; + break; + case '-': + wildcard = WILDCARD_SUPER; + break; + } + + type.getWildcards().add(wildcard); + + if (wildcard != WILDCARD_NO) { + tstr = tstr.substring(1); + } + + type.getArguments().add(tstr.length() == 0 ? null : new GenericType(tstr)); + + value = value.substring(len); + } + } + + public static String getNextType(String value) { + + int counter = 0; + int index = 0; + + boolean contmode = false; + + loop: + while (index < value.length()) { + switch (value.charAt(index)) { + case '*': + if (!contmode) { + break loop; + } + break; + case 'L': + case 'T': + if (!contmode) { + contmode = true; + } + case '[': + case '+': + case '-': + break; + default: + if (!contmode) { + break loop; + } + break; + case '<': + counter++; + break; + case '>': + counter--; + break; + case ';': + if (counter == 0) { + break loop; + } + } + + index++; + } + + return value.substring(0, index + 1); + } + + private static int getType(char c) { + switch (c) { + case 'B': + return CodeConstants.TYPE_BYTE; + case 'C': + return CodeConstants.TYPE_CHAR; + case 'D': + return CodeConstants.TYPE_DOUBLE; + case 'F': + return CodeConstants.TYPE_FLOAT; + case 'I': + return CodeConstants.TYPE_INT; + case 'J': + return CodeConstants.TYPE_LONG; + case 'S': + return CodeConstants.TYPE_SHORT; + case 'Z': + return CodeConstants.TYPE_BOOLEAN; + case 'V': + return CodeConstants.TYPE_VOID; + case 'G': + return CodeConstants.TYPE_GROUP2EMPTY; + case 'N': + return CodeConstants.TYPE_NOTINITIALIZED; + case 'A': + return CodeConstants.TYPE_ADDRESS; + case 'X': + return CodeConstants.TYPE_BYTECHAR; + case 'Y': + return CodeConstants.TYPE_SHORTCHAR; + case 'U': + return CodeConstants.TYPE_UNKNOWN; + default: + throw new RuntimeException("Invalid type"); + } + } + + + public List<GenericType> getArguments() { + return arguments; + } + + + public List<GenericType> getEnclosingClasses() { + return enclosingClasses; + } + + + public List<Integer> getWildcards() { + return wildcards; + } +} |