| /* |
| * Copyright (c) 2013, 2015, 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. |
| * |
| * 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 org.graalvm.compiler.replacements.verifier; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import javax.annotation.processing.ProcessingEnvironment; |
| import javax.lang.model.element.TypeElement; |
| import javax.lang.model.type.TypeKind; |
| import javax.lang.model.type.TypeMirror; |
| import javax.tools.Diagnostic.Kind; |
| |
| /** |
| * Pretty much copied from HotSpotSignature but using a different method for resolving types. This |
| * class should be rewritten, its just a quick hack to get signatures working. |
| */ |
| final class APHotSpotSignature { |
| |
| private final List<String> arguments = new ArrayList<>(); |
| private final String returnType; |
| private final String originalString; |
| private TypeMirror[] argumentTypes; |
| private TypeMirror returnTypeCache; |
| |
| APHotSpotSignature(String signature) { |
| assert signature.length() > 0; |
| this.originalString = signature; |
| |
| if (signature.charAt(0) == '(') { |
| int cur = 1; |
| while (cur < signature.length() && signature.charAt(cur) != ')') { |
| int nextCur = parseSignature(signature, cur); |
| arguments.add(signature.substring(cur, nextCur)); |
| cur = nextCur; |
| } |
| |
| cur++; |
| int nextCur = parseSignature(signature, cur); |
| returnType = signature.substring(cur, nextCur); |
| if (nextCur != signature.length()) { |
| throw new RuntimeException("Invalid trailing characters."); |
| } |
| } else { |
| returnType = null; |
| } |
| } |
| |
| private static int parseSignature(String signature, int start) { |
| int cur = start; |
| char first; |
| do { |
| first = signature.charAt(cur++); |
| } while (first == '['); |
| |
| switch (first) { |
| case 'L': |
| while (signature.charAt(cur) != ';') { |
| cur++; |
| } |
| cur++; |
| break; |
| case 'V': |
| case 'I': |
| case 'B': |
| case 'C': |
| case 'D': |
| case 'F': |
| case 'J': |
| case 'S': |
| case 'Z': |
| break; |
| default: |
| throw new RuntimeException("Invalid character at index " + cur + " in signature: " + signature); |
| } |
| return cur; |
| } |
| |
| public int getParameterCount(boolean withReceiver) { |
| return arguments.size() + (withReceiver ? 1 : 0); |
| } |
| |
| public TypeMirror getParameterType(ProcessingEnvironment env, int index) { |
| if (argumentTypes == null) { |
| argumentTypes = new TypeMirror[arguments.size()]; |
| } |
| TypeMirror type = argumentTypes[index]; |
| if (arguments.get(index) == null) { |
| throw new RuntimeException(String.format("Invalid argument at index %s.", index)); |
| } |
| |
| if (type == null) { |
| argumentTypes[index] = lookupType(env, arguments.get(index)); |
| } |
| return argumentTypes[index]; |
| } |
| |
| private static TypeMirror lookupType(ProcessingEnvironment env, String binaryName) { |
| if (binaryName.length() == 1) { |
| TypeKind kind = fromPrimitiveOrVoidTypeChar(binaryName.charAt(0)); |
| if (kind.isPrimitive()) { |
| return env.getTypeUtils().getPrimitiveType(kind); |
| } else if (kind == TypeKind.VOID) { |
| return env.getTypeUtils().getNoType(kind); |
| } |
| } |
| |
| String canonicalName = binaryName; |
| if (canonicalName.startsWith("L") && canonicalName.endsWith(";")) { |
| canonicalName = canonicalName.substring(1, canonicalName.length() - 1); |
| } |
| env.getMessager().printMessage(Kind.ERROR, canonicalName); |
| |
| int arrayDims = 0; |
| while (canonicalName.startsWith("[")) { |
| canonicalName = canonicalName.substring(1, canonicalName.length()); |
| arrayDims++; |
| } |
| |
| canonicalName = canonicalName.replaceAll("/", "."); |
| TypeElement typeElement = env.getElementUtils().getTypeElement(canonicalName); |
| if (typeElement == null) { |
| throw new RuntimeException(String.format("Type with name %s not found.", canonicalName)); |
| } |
| TypeMirror mirror = typeElement.asType(); |
| for (int i = 0; i < arrayDims; i++) { |
| mirror = env.getTypeUtils().getArrayType(mirror); |
| } |
| return mirror; |
| } |
| |
| /** |
| * Returns the kind from the character describing a primitive or void. |
| * |
| * @param ch the character |
| * @return the kind |
| */ |
| public static TypeKind fromPrimitiveOrVoidTypeChar(char ch) { |
| switch (ch) { |
| case 'Z': |
| return TypeKind.BOOLEAN; |
| case 'C': |
| return TypeKind.CHAR; |
| case 'F': |
| return TypeKind.FLOAT; |
| case 'D': |
| return TypeKind.DOUBLE; |
| case 'B': |
| return TypeKind.BYTE; |
| case 'S': |
| return TypeKind.SHORT; |
| case 'I': |
| return TypeKind.INT; |
| case 'J': |
| return TypeKind.LONG; |
| case 'V': |
| return TypeKind.VOID; |
| } |
| throw new IllegalArgumentException("unknown primitive or void type character: " + ch); |
| } |
| |
| public TypeMirror getReturnType(ProcessingEnvironment env) { |
| if (returnTypeCache == null) { |
| if (returnType == null) { |
| throw new RuntimeException("Invalid return type."); |
| } |
| returnTypeCache = lookupType(env, returnType); |
| } |
| return returnTypeCache; |
| } |
| |
| @Override |
| public String toString() { |
| return "Signature<" + originalString + ">"; |
| } |
| } |