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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /parser/html/javasrc/Portability.java | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'parser/html/javasrc/Portability.java')
-rw-r--r-- | parser/html/javasrc/Portability.java | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/parser/html/javasrc/Portability.java b/parser/html/javasrc/Portability.java new file mode 100644 index 0000000000..1d65894a86 --- /dev/null +++ b/parser/html/javasrc/Portability.java @@ -0,0 +1,159 @@ +/* + * Copyright (c) 2008-2015 Mozilla Foundation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +package nu.validator.htmlparser.impl; + +import org.xml.sax.SAXException; + +import nu.validator.htmlparser.annotation.Literal; +import nu.validator.htmlparser.annotation.Local; +import nu.validator.htmlparser.annotation.NoLength; +import nu.validator.htmlparser.common.Interner; + +public final class Portability { + + public static int checkedAdd(int a, int b) throws SAXException { + // This can't be translated code, because in C++ signed integer overflow is UB, so the below code would be wrong. + assert a >= 0; + assert b >= 0; + int sum = a + b; + if (sum < a || sum < b) { + throw new SAXException("Integer overflow"); + } + return sum; + } + + // Allocating methods + + /** + * Allocates a new local name object. In C++, the refcount must be set up in such a way that + * calling <code>releaseLocal</code> on the return value balances the refcount set by this method. + */ + public static @Local String newLocalNameFromBuffer(@NoLength char[] buf, int length, Interner interner) { + return new String(buf, 0, length).intern(); + } + + public static String newStringFromBuffer(@NoLength char[] buf, int offset, int length + // CPPONLY: , TreeBuilder treeBuilder, boolean maybeAtomize + ) { + return new String(buf, offset, length); + } + + public static String newEmptyString() { + return ""; + } + + public static String newStringFromLiteral(@Literal String literal) { + return literal; + } + + public static String newStringFromString(String string) { + return string; + } + + // XXX get rid of this + public static char[] newCharArrayFromLocal(@Local String local) { + return local.toCharArray(); + } + + public static char[] newCharArrayFromString(String string) { + return string.toCharArray(); + } + + // Deallocation methods + + public static void releaseString(String str) { + // No-op in Java + } + + // Comparison methods + + public static boolean localEqualsBuffer(@Local String local, @NoLength char[] buf, int length) { + if (local.length() != length) { + return false; + } + for (int i = 0; i < length; i++) { + if (local.charAt(i) != buf[i]) { + return false; + } + } + return true; + } + + public static boolean lowerCaseLiteralIsPrefixOfIgnoreAsciiCaseString(@Literal String lowerCaseLiteral, + String string) { + if (string == null) { + return false; + } + if (lowerCaseLiteral.length() > string.length()) { + return false; + } + for (int i = 0; i < lowerCaseLiteral.length(); i++) { + char c0 = lowerCaseLiteral.charAt(i); + char c1 = string.charAt(i); + if (c1 >= 'A' && c1 <= 'Z') { + c1 += 0x20; + } + if (c0 != c1) { + return false; + } + } + return true; + } + + public static boolean lowerCaseLiteralEqualsIgnoreAsciiCaseString(@Literal String lowerCaseLiteral, + String string) { + if (string == null) { + return false; + } + if (lowerCaseLiteral.length() != string.length()) { + return false; + } + for (int i = 0; i < lowerCaseLiteral.length(); i++) { + char c0 = lowerCaseLiteral.charAt(i); + char c1 = string.charAt(i); + if (c1 >= 'A' && c1 <= 'Z') { + c1 += 0x20; + } + if (c0 != c1) { + return false; + } + } + return true; + } + + public static boolean literalEqualsString(@Literal String literal, String string) { + return literal.equals(string); + } + + public static boolean stringEqualsString(String one, String other) { + return one.equals(other); + } + + public static void delete(Object o) { + + } + + public static void deleteArray(Object o) { + + } +} |