--- old/src/jdk.compiler/share/classes/com/sun/tools/javah/TypeSignature.java 2017-11-09 15:06:40.085914090 -0800 +++ /dev/null 2017-01-21 22:54:52.877512947 -0800 @@ -1,283 +0,0 @@ -/* - * Copyright (c) 2002, 2014, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. Oracle designates this - * particular file as subject to the "Classpath" exception as provided - * by Oracle in the LICENSE file that accompanied this code. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - */ - -package com.sun.tools.javah; - -import java.util.*; -import javax.lang.model.element.Name; -import javax.lang.model.element.TypeElement; -import javax.lang.model.type.ArrayType; -import javax.lang.model.type.DeclaredType; -import javax.lang.model.type.NoType; -import javax.lang.model.type.PrimitiveType; -import javax.lang.model.type.TypeKind; -import javax.lang.model.type.TypeMirror; -import javax.lang.model.type.TypeVariable; -import javax.lang.model.type.TypeVisitor; -import javax.lang.model.util.Elements; -import javax.lang.model.util.SimpleTypeVisitor9; - -import com.sun.tools.javac.util.DefinedBy; -import com.sun.tools.javac.util.DefinedBy.Api; - -/** - * Returns internal type signature. - * - *

This is NOT part of any supported API. - * If you write code that depends on this, you do so at your own - * risk. This code and its internal interfaces are subject to change - * or deletion without notice.

- * - * @author Sucheta Dambalkar - */ - -public class TypeSignature { - static class SignatureException extends Exception { - private static final long serialVersionUID = 1L; - SignatureException(String reason) { - super(reason); - } - } - - Elements elems; - - /* Signature Characters */ - - private static final String SIG_VOID = "V"; - private static final String SIG_BOOLEAN = "Z"; - private static final String SIG_BYTE = "B"; - private static final String SIG_CHAR = "C"; - private static final String SIG_SHORT = "S"; - private static final String SIG_INT = "I"; - private static final String SIG_LONG = "J"; - private static final String SIG_FLOAT = "F"; - private static final String SIG_DOUBLE = "D"; - private static final String SIG_ARRAY = "["; - private static final String SIG_CLASS = "L"; - - - - public TypeSignature(Elements elems){ - this.elems = elems; - } - - /* - * Returns the type signature of a field according to JVM specs - */ - public String getTypeSignature(String javasignature) throws SignatureException { - return getParamJVMSignature(javasignature); - } - - /* - * Returns the type signature of a method according to JVM specs - */ - public String getTypeSignature(String javasignature, TypeMirror returnType) - throws SignatureException { - String signature = null; //Java type signature. - String typeSignature = null; //Internal type signature. - List params = new ArrayList<>(); //List of parameters. - String paramsig = null; //Java parameter signature. - String paramJVMSig = null; //Internal parameter signature. - String returnSig = null; //Java return type signature. - String returnJVMType = null; //Internal return type signature. - int dimensions = 0; //Array dimension. - - int startIndex = -1; - int endIndex = -1; - StringTokenizer st = null; - int i = 0; - - // Gets the actual java signature without parentheses. - if (javasignature != null) { - startIndex = javasignature.indexOf("("); - endIndex = javasignature.indexOf(")"); - } - - if (((startIndex != -1) && (endIndex != -1)) - &&(startIndex+1 < javasignature.length()) - &&(endIndex < javasignature.length())) { - signature = javasignature.substring(startIndex+1, endIndex); - } - - // Separates parameters. - if (signature != null) { - if (signature.contains(",")) { - st = new StringTokenizer(signature, ","); - if (st != null) { - while (st.hasMoreTokens()) { - params.add(st.nextToken()); - } - } - } else { - params.add(signature); - } - } - - /* JVM type signature. */ - typeSignature = "("; - - // Gets indivisual internal parameter signature. - while (params.isEmpty() != true) { - paramsig = params.remove(i).trim(); - paramJVMSig = getParamJVMSignature(paramsig); - if (paramJVMSig != null) { - typeSignature += paramJVMSig; - } - } - - typeSignature += ")"; - - // Get internal return type signature. - - returnJVMType = ""; - if (returnType != null) { - dimensions = dimensions(returnType); - } - - //Gets array dimension of return type. - while (dimensions-- > 0) { - returnJVMType += "["; - } - if (returnType != null) { - returnSig = qualifiedTypeName(returnType); - returnJVMType += getComponentType(returnSig); - } else { - System.out.println("Invalid return type."); - } - - typeSignature += returnJVMType; - - return typeSignature; - } - - /* - * Returns internal signature of a parameter. - */ - private String getParamJVMSignature(String paramsig) throws SignatureException { - String paramJVMSig = ""; - String componentType =""; - - if(paramsig != null){ - - if(paramsig.contains("[]")) { - // Gets array dimension. - int endindex = paramsig.indexOf("[]"); - componentType = paramsig.substring(0, endindex); - String dimensionString = paramsig.substring(endindex); - if(dimensionString != null){ - while(dimensionString.contains("[]")){ - paramJVMSig += "["; - int beginindex = dimensionString.indexOf("]") + 1; - if(beginindex < dimensionString.length()){ - dimensionString = dimensionString.substring(beginindex); - }else - dimensionString = ""; - } - } - } else componentType = paramsig; - - paramJVMSig += getComponentType(componentType); - } - return paramJVMSig; - } - - /* - * Returns internal signature of a component. - */ - private String getComponentType(String componentType) throws SignatureException { - - String JVMSig = ""; - - if(componentType != null){ - switch (componentType) { - case "void": JVMSig += SIG_VOID; break; - case "boolean": JVMSig += SIG_BOOLEAN; break; - case "byte": JVMSig += SIG_BYTE; break; - case "char": JVMSig += SIG_CHAR; break; - case "short": JVMSig += SIG_SHORT; break; - case "int": JVMSig += SIG_INT; break; - case "long": JVMSig += SIG_LONG; break; - case "float": JVMSig += SIG_FLOAT; break; - case "double": JVMSig += SIG_DOUBLE; break; - default: - if (!componentType.equals("")) { - TypeElement classNameDoc = elems.getTypeElement(componentType); - - if (classNameDoc == null) { - throw new SignatureException(componentType); - } - else { - String classname = classNameDoc.getQualifiedName().toString(); - String newclassname = classname.replace('.', '/'); - JVMSig += "L"; - JVMSig += newclassname; - JVMSig += ";"; - } - } - break; - } - } - return JVMSig; - } - - int dimensions(TypeMirror t) { - if (t.getKind() != TypeKind.ARRAY) - return 0; - return 1 + dimensions(((ArrayType) t).getComponentType()); - } - - - String qualifiedTypeName(TypeMirror type) { - TypeVisitor v = new SimpleTypeVisitor9() { - @Override @DefinedBy(Api.LANGUAGE_MODEL) - public Name visitArray(ArrayType t, Void p) { - return t.getComponentType().accept(this, p); - } - - @Override @DefinedBy(Api.LANGUAGE_MODEL) - public Name visitDeclared(DeclaredType t, Void p) { - return ((TypeElement) t.asElement()).getQualifiedName(); - } - - @Override @DefinedBy(Api.LANGUAGE_MODEL) - public Name visitPrimitive(PrimitiveType t, Void p) { - return elems.getName(t.toString()); - } - - @Override @DefinedBy(Api.LANGUAGE_MODEL) - public Name visitNoType(NoType t, Void p) { - if (t.getKind() == TypeKind.VOID) - return elems.getName("void"); - return defaultAction(t, p); - } - - @Override @DefinedBy(Api.LANGUAGE_MODEL) - public Name visitTypeVariable(TypeVariable t, Void p) { - return t.getUpperBound().accept(this, p); - } - }; - return v.visit(type).toString(); - } -}