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4075303: Use javap to enquire aboput a specific inner class
4348375: Javap is not internationalized 4459541: "javap -l" shows line numbers as signed short; they should be unsigned 4501660: change diagnostic of -help as 'print this help message and exit' 4776241: unused source file in javap.. 4870651: javap should recognize generics, varargs, enum 4876942: javap invoked without args does not print help screen 4880663: javap could output whitespace between class name and opening brace 4975569: javap doesn't print new flag bits 6271787: javap dumps LocalVariableTypeTable attribute in hex, needs to print a table 6305779: javap: support annotations 6439940: Clean up javap implementation 6469569: wrong check of searchpath in JavapEnvironment 6474890: javap does not open .zip files in -classpath 6587786: Javap throws error : "ERROR:Could not find <classname>" for JRE classes 6622215: javap ignores certain relevant access flags 6622216: javap names some attributes incorrectly 6622232: javap gets whitespace confused 6622260: javap prints negative bytes incorrectly in hex Reviewed-by: ksrini
This commit is contained in:
Jonathan Gibbons
parent
e3ba3ecd1d
commit
0a7516d744
87 changed files with 11690 additions and 8 deletions
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/*
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* Copyright 2007 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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package com.sun.tools.classfile;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* See JVMS3 4.4.4.
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*
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* <p><b>This is NOT part of any API supported by Sun Microsystems. If
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* you write code that depends on this, you do so at your own risk.
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* This code and its internal interfaces are subject to change or
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* deletion without notice.</b>
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*/
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public class Signature extends Descriptor {
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public Signature(int index) {
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super(index);
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}
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public Type getType(ConstantPool constant_pool) throws ConstantPoolException {
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if (type == null)
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type = parse(getValue(constant_pool));
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return type;
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}
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@Override
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public int getParameterCount(ConstantPool constant_pool) throws ConstantPoolException {
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Type.MethodType m = (Type.MethodType) getType(constant_pool);
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return m.argTypes.size();
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}
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@Override
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public String getParameterTypes(ConstantPool constant_pool) throws ConstantPoolException {
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Type.MethodType m = (Type.MethodType) getType(constant_pool);
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StringBuilder sb = new StringBuilder();
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sb.append("(");
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String sep = "";
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for (Type argType: m.argTypes) {
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sb.append(sep);
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sb.append(argType);
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sep = ", ";
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}
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sb.append(")");
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return sb.toString();
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}
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@Override
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public String getReturnType(ConstantPool constant_pool) throws ConstantPoolException {
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Type.MethodType m = (Type.MethodType) getType(constant_pool);
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return m.returnType.toString();
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}
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@Override
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public String getFieldType(ConstantPool constant_pool) throws ConstantPoolException {
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return getType(constant_pool).toString();
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}
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private Type parse(String sig) {
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this.sig = sig;
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sigp = 0;
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List<Type> typeArgTypes = null;
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if (sig.charAt(sigp) == '<')
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typeArgTypes = parseTypeArgTypes();
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if (sig.charAt(sigp) == '(') {
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List<Type> argTypes = parseTypeSignatures(')');
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Type returnType = parseTypeSignature();
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List<Type> throwsTypes = null;
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while (sigp < sig.length() && sig.charAt(sigp) == '^') {
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sigp++;
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if (throwsTypes == null)
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throwsTypes = new ArrayList<Type>();
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throwsTypes.add(parseTypeSignature());
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}
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return new Type.MethodType(typeArgTypes, argTypes, returnType, throwsTypes);
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} else {
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Type t = parseTypeSignature();
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if (typeArgTypes == null && sigp == sig.length())
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return t;
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Type superclass = t;
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List<Type> superinterfaces = new ArrayList<Type>();
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while (sigp < sig.length())
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superinterfaces.add(parseTypeSignature());
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return new Type.ClassSigType(typeArgTypes, superclass, superinterfaces);
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}
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}
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private Type parseTypeSignature() {
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switch (sig.charAt(sigp)) {
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case 'B':
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sigp++;
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return new Type.SimpleType("byte");
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case 'C':
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sigp++;
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return new Type.SimpleType("char");
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case 'D':
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sigp++;
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return new Type.SimpleType("double");
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case 'F':
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sigp++;
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return new Type.SimpleType("float");
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case 'I':
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sigp++;
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return new Type.SimpleType("int");
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case 'J':
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sigp++;
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return new Type.SimpleType("long");
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case 'L':
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return parseClassTypeSignature();
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case 'S':
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sigp++;
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return new Type.SimpleType("short");
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case 'T':
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return parseTypeVariableSignature();
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case 'V':
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sigp++;
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return new Type.SimpleType("void");
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case 'Z':
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sigp++;
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return new Type.SimpleType("boolean");
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case '[':
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sigp++;
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return new Type.ArrayType(parseTypeSignature());
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case '*':
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sigp++;
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return new Type.WildcardType();
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case '+':
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sigp++;
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return new Type.WildcardType("extends", parseTypeSignature());
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case '-':
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sigp++;
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return new Type.WildcardType("super", parseTypeSignature());
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default:
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throw new IllegalStateException(debugInfo());
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}
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}
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private List<Type> parseTypeSignatures(char term) {
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sigp++;
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List<Type> types = new ArrayList<Type>();
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while (sig.charAt(sigp) != term)
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types.add(parseTypeSignature());
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sigp++;
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return types;
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}
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private Type parseClassTypeSignature() {
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assert sig.charAt(sigp) == 'L';
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sigp++;
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return parseClassTypeSignatureRest();
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}
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private Type parseClassTypeSignatureRest() {
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StringBuilder sb = new StringBuilder();
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Type t = null;
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char sigch;
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while (true) {
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switch (sigch = sig.charAt(sigp)) {
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case '/':
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sigp++;
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sb.append(".");
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break;
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case '.':
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sigp++;
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if (t == null)
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t = new Type.SimpleType(sb.toString());
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return new Type.InnerClassType(t, parseClassTypeSignatureRest());
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case ';':
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sigp++;
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if (t == null)
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t = new Type.SimpleType(sb.toString());
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return t;
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case '<':
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List<Type> argTypes = parseTypeSignatures('>');
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t = new Type.ClassType(sb.toString(), argTypes);
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break;
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default:
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sigp++;
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sb.append(sigch);
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break;
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}
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}
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}
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private List<Type> parseTypeArgTypes() {
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assert sig.charAt(sigp) == '<';
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sigp++;
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List<Type> types = null;
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types = new ArrayList<Type>();
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while (sig.charAt(sigp) != '>')
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types.add(parseTypeArgType());
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sigp++;
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return types;
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}
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private Type parseTypeArgType() {
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int sep = sig.indexOf(":", sigp);
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String name = sig.substring(sigp, sep);
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Type classBound = null;
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List<Type> interfaceBounds = null;
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sigp = sep + 1;
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if (sig.charAt(sigp) != ':')
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classBound = parseTypeSignature();
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while (sig.charAt(sigp) == ':') {
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sigp++;
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if (interfaceBounds == null)
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interfaceBounds = new ArrayList<Type>();
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interfaceBounds.add(parseTypeSignature());
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}
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return new Type.TypeArgType(name, classBound, interfaceBounds);
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}
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private Type parseTypeVariableSignature() {
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sigp++;
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int sep = sig.indexOf(';', sigp);
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Type t = new Type.SimpleType(sig.substring(sigp, sep));
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sigp = sep + 1;
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return t;
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}
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private String debugInfo() {
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return sig.substring(0, sigp) + "!" + sig.charAt(sigp) + "!" + sig.substring(sigp+1);
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}
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private String sig;
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private int sigp;
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private Type type;
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}
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