Mercurial > hg > truffle
view src/share/vm/runtime/fieldType.cpp @ 1949:058f494c8b6d
Merge
author | trims |
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date | Fri, 10 Dec 2010 15:46:59 -0800 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
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/* * Copyright (c) 1997, 2000, 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. * */ # include "incls/_precompiled.incl" # include "incls/_fieldType.cpp.incl" void FieldType::skip_optional_size(symbolOop signature, int* index) { jchar c = signature->byte_at(*index); while (c >= '0' && c <= '9') { *index = *index + 1; c = signature->byte_at(*index); } } BasicType FieldType::basic_type(symbolOop signature) { return char2type(signature->byte_at(0)); } // Check if it is a valid array signature bool FieldType::is_valid_array_signature(symbolOop sig) { assert(sig->utf8_length() > 1, "this should already have been checked"); assert(sig->byte_at(0) == '[', "this should already have been checked"); // The first character is already checked int i = 1; int len = sig->utf8_length(); // First skip all '['s while(i < len - 1 && sig->byte_at(i) == '[') i++; // Check type switch(sig->byte_at(i)) { case 'B': // T_BYTE case 'C': // T_CHAR case 'D': // T_DOUBLE case 'F': // T_FLOAT case 'I': // T_INT case 'J': // T_LONG case 'S': // T_SHORT case 'Z': // T_BOOLEAN // If it is an array, the type is the last character return (i + 1 == len); case 'L': // If it is an object, the last character must be a ';' return sig->byte_at(len - 1) == ';'; } return false; } BasicType FieldType::get_array_info(symbolOop signature, jint* dimension, symbolOop* object_key, TRAPS) { assert(basic_type(signature) == T_ARRAY, "must be array"); int index = 1; int dim = 1; skip_optional_size(signature, &index); while (signature->byte_at(index) == '[') { index++; dim++; skip_optional_size(signature, &index); } ResourceMark rm; symbolOop element = oopFactory::new_symbol(signature->as_C_string() + index, CHECK_(T_BYTE)); BasicType element_type = FieldType::basic_type(element); if (element_type == T_OBJECT) { char* object_type = element->as_C_string(); object_type[element->utf8_length() - 1] = '\0'; *object_key = oopFactory::new_symbol(object_type + 1, CHECK_(T_BYTE)); } // Pass dimension back to caller *dimension = dim; return element_type; }