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-rw-r--r--parser/html/nsHtml5Portability.cpp109
1 files changed, 109 insertions, 0 deletions
diff --git a/parser/html/nsHtml5Portability.cpp b/parser/html/nsHtml5Portability.cpp
new file mode 100644
index 0000000000..e947c9e257
--- /dev/null
+++ b/parser/html/nsHtml5Portability.cpp
@@ -0,0 +1,109 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsHtml5Portability.h"
+#include "jArray.h"
+#include "nsAtom.h"
+#include "nsHtml5TreeBuilder.h"
+#include "nsString.h"
+#include "mozilla/CheckedInt.h"
+
+int32_t nsHtml5Portability::checkedAdd(int32_t a, int32_t b) {
+ mozilla::CheckedInt<int32_t> sum(a);
+ sum += b;
+ MOZ_RELEASE_ASSERT(sum.isValid(),
+ "HTML input too large for signed 32-bit integer.");
+ return sum.value();
+}
+
+nsAtom* nsHtml5Portability::newLocalNameFromBuffer(char16_t* buf,
+ int32_t length,
+ nsHtml5AtomTable* interner) {
+ NS_ASSERTION(interner, "Didn't get an atom service.");
+ return interner->GetAtom(nsDependentSubstring(buf, buf + length));
+}
+
+static bool ContainsWhiteSpace(mozilla::Span<char16_t> aSpan) {
+ for (char16_t c : aSpan) {
+ if (nsContentUtils::IsHTMLWhitespace(c)) {
+ return true;
+ }
+ }
+ return false;
+}
+
+nsHtml5String nsHtml5Portability::newStringFromBuffer(
+ char16_t* buf, int32_t offset, int32_t length,
+ nsHtml5TreeBuilder* treeBuilder, bool maybeAtomize) {
+ if (!length) {
+ return nsHtml5String::EmptyString();
+ }
+ if (maybeAtomize &&
+ !ContainsWhiteSpace(mozilla::Span(buf + offset, length))) {
+ return nsHtml5String::FromAtom(
+ NS_AtomizeMainThread(nsDependentSubstring(buf + offset, length)));
+ }
+ return nsHtml5String::FromBuffer(buf + offset, length, treeBuilder);
+}
+
+nsHtml5String nsHtml5Portability::newEmptyString() {
+ return nsHtml5String::EmptyString();
+}
+
+nsHtml5String nsHtml5Portability::newStringFromLiteral(const char* literal) {
+ return nsHtml5String::FromLiteral(literal);
+}
+
+nsHtml5String nsHtml5Portability::newStringFromString(nsHtml5String string) {
+ return string.Clone();
+}
+
+jArray<char16_t, int32_t> nsHtml5Portability::newCharArrayFromLocal(
+ nsAtom* local) {
+ nsAutoString temp;
+ local->ToString(temp);
+ int32_t len = temp.Length();
+ jArray<char16_t, int32_t> arr = jArray<char16_t, int32_t>::newJArray(len);
+ memcpy(arr, temp.BeginReading(), len * sizeof(char16_t));
+ return arr;
+}
+
+jArray<char16_t, int32_t> nsHtml5Portability::newCharArrayFromString(
+ nsHtml5String string) {
+ MOZ_RELEASE_ASSERT(string);
+ uint32_t len = string.Length();
+ MOZ_RELEASE_ASSERT(len < INT32_MAX);
+ jArray<char16_t, int32_t> arr = jArray<char16_t, int32_t>::newJArray(len);
+ string.CopyToBuffer(arr);
+ return arr;
+}
+
+bool nsHtml5Portability::localEqualsBuffer(nsAtom* local, char16_t* buf,
+ int32_t length) {
+ return local->Equals(buf, length);
+}
+
+bool nsHtml5Portability::lowerCaseLiteralIsPrefixOfIgnoreAsciiCaseString(
+ const char* lowerCaseLiteral, nsHtml5String string) {
+ return string.LowerCaseStartsWithASCII(lowerCaseLiteral);
+}
+
+bool nsHtml5Portability::lowerCaseLiteralEqualsIgnoreAsciiCaseString(
+ const char* lowerCaseLiteral, nsHtml5String string) {
+ return string.LowerCaseEqualsASCII(lowerCaseLiteral);
+}
+
+bool nsHtml5Portability::literalEqualsString(const char* literal,
+ nsHtml5String string) {
+ return string.EqualsASCII(literal);
+}
+
+bool nsHtml5Portability::stringEqualsString(nsHtml5String one,
+ nsHtml5String other) {
+ return one.Equals(other);
+}
+
+void nsHtml5Portability::initializeStatics() {}
+
+void nsHtml5Portability::releaseStatics() {}