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1 /*
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2 * Copyright 1997-2005 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 # include "incls/_precompiled.incl"
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26 # include "incls/_symbolOop.cpp.incl"
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27
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28 bool symbolOopDesc::equals(const char* str, int len) const {
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29 int l = utf8_length();
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30 if (l != len) return false;
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31 while (l-- > 0) {
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32 if (str[l] != (char) byte_at(l))
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33 return false;
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34 }
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35 assert(l == -1, "we should be at the beginning");
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36 return true;
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37 }
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38
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39 char* symbolOopDesc::as_C_string(char* buf, int size) const {
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40 if (size > 0) {
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41 int len = MIN2(size - 1, utf8_length());
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42 for (int i = 0; i < len; i++) {
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43 buf[i] = byte_at(i);
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44 }
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45 buf[len] = '\0';
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46 }
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47 return buf;
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48 }
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49
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50 char* symbolOopDesc::as_C_string() const {
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51 int len = utf8_length();
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52 char* str = NEW_RESOURCE_ARRAY(char, len + 1);
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53 return as_C_string(str, len + 1);
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54 }
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55
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56 char* symbolOopDesc::as_C_string_flexible_buffer(Thread* t,
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57 char* buf, int size) const {
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58 char* str;
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59 int len = utf8_length();
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60 int buf_len = len + 1;
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61 if (size < buf_len) {
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62 str = NEW_RESOURCE_ARRAY(char, buf_len);
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63 } else {
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64 str = buf;
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65 }
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66 return as_C_string(str, buf_len);
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67 }
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68
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69 void symbolOopDesc::print_symbol_on(outputStream* st) {
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70 st = st ? st : tty;
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71 int length = UTF8::unicode_length((const char*)bytes(), utf8_length());
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72 const char *ptr = (const char *)bytes();
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73 jchar value;
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74 for (int index = 0; index < length; index++) {
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75 ptr = UTF8::next(ptr, &value);
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76 if (value >= 32 && value < 127 || value == '\'' || value == '\\') {
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77 st->put(value);
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78 } else {
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79 st->print("\\u%04x", value);
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80 }
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81 }
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82 }
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83
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84 jchar* symbolOopDesc::as_unicode(int& length) const {
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85 symbolOopDesc* this_ptr = (symbolOopDesc*)this;
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86 length = UTF8::unicode_length((char*)this_ptr->bytes(), utf8_length());
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87 jchar* result = NEW_RESOURCE_ARRAY(jchar, length);
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88 if (length > 0) {
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89 UTF8::convert_to_unicode((char*)this_ptr->bytes(), result, length);
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90 }
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91 return result;
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92 }
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93
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94 const char* symbolOopDesc::as_klass_external_name(char* buf, int size) const {
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95 if (size > 0) {
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96 char* str = as_C_string(buf, size);
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97 int length = (int)strlen(str);
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98 // Turn all '/'s into '.'s (also for array klasses)
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99 for (int index = 0; index < length; index++) {
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100 if (str[index] == '/') {
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101 str[index] = '.';
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102 }
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103 }
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104 return str;
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105 } else {
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106 return buf;
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107 }
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108 }
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109
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110 const char* symbolOopDesc::as_klass_external_name() const {
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111 char* str = as_C_string();
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112 int length = (int)strlen(str);
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113 // Turn all '/'s into '.'s (also for array klasses)
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114 for (int index = 0; index < length; index++) {
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115 if (str[index] == '/') {
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116 str[index] = '.';
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117 }
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118 }
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119 return str;
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120 }
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