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src/share/vm/runtime/fieldType.cpp@c18cbe5936b8 (annotated)

src/share/vm/runtime/fieldType.cpp

Thu, 27 May 2010 19:08:38 -0700

author

trims

date

Thu, 27 May 2010 19:08:38 -0700

changeset 1907

c18cbe5936b8

parent 435

a61af66fc99e

child 2314

f95d63e2154a

permissions

-rw-r--r--

6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair

duke@435	1	/*
trims@1907	2	* Copyright (c) 1997, 2000, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	# include "incls/_precompiled.incl"
duke@435	26	# include "incls/_fieldType.cpp.incl"
duke@435	27
duke@435	28	void FieldType::skip_optional_size(symbolOop signature, int* index) {
duke@435	29	jchar c = signature->byte_at(*index);
duke@435	30	while (c >= '0' && c <= '9') {
duke@435	31	*index = *index + 1;
duke@435	32	c = signature->byte_at(*index);
duke@435	33	}
duke@435	34	}
duke@435	35
duke@435	36	BasicType FieldType::basic_type(symbolOop signature) {
duke@435	37	return char2type(signature->byte_at(0));
duke@435	38	}
duke@435	39
duke@435	40	// Check if it is a valid array signature
duke@435	41	bool FieldType::is_valid_array_signature(symbolOop sig) {
duke@435	42	assert(sig->utf8_length() > 1, "this should already have been checked");
duke@435	43	assert(sig->byte_at(0) == '[', "this should already have been checked");
duke@435	44	// The first character is already checked
duke@435	45	int i = 1;
duke@435	46	int len = sig->utf8_length();
duke@435	47	// First skip all '['s
duke@435	48	while(i < len - 1 && sig->byte_at(i) == '[') i++;
duke@435	49
duke@435	50	// Check type
duke@435	51	switch(sig->byte_at(i)) {
duke@435	52	case 'B': // T_BYTE
duke@435	53	case 'C': // T_CHAR
duke@435	54	case 'D': // T_DOUBLE
duke@435	55	case 'F': // T_FLOAT
duke@435	56	case 'I': // T_INT
duke@435	57	case 'J': // T_LONG
duke@435	58	case 'S': // T_SHORT
duke@435	59	case 'Z': // T_BOOLEAN
duke@435	60	// If it is an array, the type is the last character
duke@435	61	return (i + 1 == len);
duke@435	62	case 'L':
duke@435	63	// If it is an object, the last character must be a ';'
duke@435	64	return sig->byte_at(len - 1) == ';';
duke@435	65	}
duke@435	66
duke@435	67	return false;
duke@435	68	}
duke@435	69
duke@435	70
duke@435	71	BasicType FieldType::get_array_info(symbolOop signature, jint* dimension, symbolOop* object_key, TRAPS) {
duke@435	72	assert(basic_type(signature) == T_ARRAY, "must be array");
duke@435	73	int index = 1;
duke@435	74	int dim = 1;
duke@435	75	skip_optional_size(signature, &index);
duke@435	76	while (signature->byte_at(index) == '[') {
duke@435	77	index++;
duke@435	78	dim++;
duke@435	79	skip_optional_size(signature, &index);
duke@435	80	}
duke@435	81	ResourceMark rm;
duke@435	82	symbolOop element = oopFactory::new_symbol(signature->as_C_string() + index, CHECK_(T_BYTE));
duke@435	83	BasicType element_type = FieldType::basic_type(element);
duke@435	84	if (element_type == T_OBJECT) {
duke@435	85	char* object_type = element->as_C_string();
duke@435	86	object_type[element->utf8_length() - 1] = '\0';
duke@435	87	*object_key = oopFactory::new_symbol(object_type + 1, CHECK_(T_BYTE));
duke@435	88	}
duke@435	89	// Pass dimension back to caller
duke@435	90	*dimension = dim;
duke@435	91	return element_type;
duke@435	92	}