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Unified Diff: third_party/WebKit/Source/wtf/text/StringImpl.cpp

Issue 2146163003: Use StringView for startsWith and endsWith. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 5 months ago
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Index: third_party/WebKit/Source/wtf/text/StringImpl.cpp
diff --git a/third_party/WebKit/Source/wtf/text/StringImpl.cpp b/third_party/WebKit/Source/wtf/text/StringImpl.cpp
index 2b7ceb20e086a4970e570ab9b3a8fb21670cdb3f..a18498fabeb89f6ec9b520273c8a3e23664b55a3 100644
--- a/third_party/WebKit/Source/wtf/text/StringImpl.cpp
+++ b/third_party/WebKit/Source/wtf/text/StringImpl.cpp
@@ -707,15 +707,14 @@ upconvert:
return newImpl.release();
}
-static inline bool localeIdMatchesLang(const AtomicString& localeId, const char* lang)
+static inline bool localeIdMatchesLang(const AtomicString& localeId, const StringView& lang)
{
- size_t langLength = strlen(lang);
- RELEASE_ASSERT(langLength >= 2 && langLength <= 3);
- if (!localeId.impl() || !localeId.impl()->startsWithIgnoringCase(lang, langLength))
+ RELEASE_ASSERT(lang.length() >= 2 && lang.length() <= 3);
+ if (!localeId.impl() || !localeId.impl()->startsWithIgnoringCase(lang))
return false;
- if (localeId.impl()->length() == langLength)
+ if (localeId.impl()->length() == lang.length())
return true;
- const UChar maybeDelimiter = (*localeId.impl())[langLength];
+ const UChar maybeDelimiter = (*localeId.impl())[lang.length()];
return maybeDelimiter == '-' || maybeDelimiter == '_' || maybeDelimiter == '@';
}
@@ -1498,135 +1497,51 @@ size_t StringImpl::reverseFind(StringImpl* matchString, unsigned index)
return reverseFindInner(characters16(), matchString->characters16(), index, ourLength, matchLength);
}
-ALWAYS_INLINE static bool equalSubstring(const StringImpl* stringImpl, unsigned startOffset, const LChar* matchString, unsigned matchLength)
-{
- ASSERT(stringImpl);
- ASSERT(matchLength <= stringImpl->length());
- ASSERT(startOffset + matchLength <= stringImpl->length());
-
- if (stringImpl->is8Bit())
- return equal(stringImpl->characters8() + startOffset, matchString, matchLength);
- return equal(stringImpl->characters16() + startOffset, matchString, matchLength);
-}
-
bool StringImpl::startsWith(UChar character) const
{
return m_length && (*this)[0] == character;
}
-bool StringImpl::startsWith(const char* prefixString, unsigned prefixLength) const
+bool StringImpl::startsWith(const StringView& prefix) const
{
- ASSERT(prefixLength);
- if (prefixLength > length())
+ if (prefix.length() > length())
return false;
- return equalSubstring(this, 0, reinterpret_cast<const LChar*>(prefixString), prefixLength);
-}
-
-ALWAYS_INLINE static bool equalSubstring(const StringImpl* stringImpl, unsigned startOffset, const StringImpl* matchString)
-{
- ASSERT(stringImpl);
- ASSERT(matchString);
- ASSERT(matchString->length() <= stringImpl->length());
- ASSERT(startOffset + matchString->length() <= stringImpl->length());
-
- unsigned matchLength = matchString->length();
- if (matchString->is8Bit())
- return equalSubstring(stringImpl, startOffset, matchString->characters8(), matchLength);
- if (stringImpl->is8Bit())
- return equal(stringImpl->characters8() + startOffset, matchString->characters16(), matchLength);
- return equal(stringImpl->characters16() + startOffset, matchString->characters16(), matchLength);
-}
-
-bool StringImpl::startsWith(const StringImpl* prefix) const
-{
- ASSERT(prefix);
- if (prefix->length() > length())
- return false;
- return equalSubstring(this, 0, prefix);
-}
-
-ALWAYS_INLINE static bool equalSubstringIgnoringCase(const StringImpl* stringImpl, unsigned startOffset, const LChar* matchString, unsigned matchLength)
-{
- ASSERT(stringImpl);
- ASSERT(matchLength <= stringImpl->length());
- ASSERT(startOffset + matchLength <= stringImpl->length());
-
- if (stringImpl->is8Bit())
- return equalIgnoringCase(stringImpl->characters8() + startOffset, matchString, matchLength);
- return equalIgnoringCase(stringImpl->characters16() + startOffset, matchString, matchLength);
-}
-
-bool StringImpl::startsWithIgnoringCase(const char* prefixString, unsigned prefixLength) const
-{
- ASSERT(prefixLength);
- if (prefixLength > length())
- return false;
- return equalSubstringIgnoringCase(this, 0, reinterpret_cast<const LChar*>(prefixString), prefixLength);
-}
-
-ALWAYS_INLINE static bool equalSubstringIgnoringCase(const StringImpl* stringImpl, unsigned startOffset, const StringImpl* matchString)
-{
- ASSERT(stringImpl);
- ASSERT(matchString);
- ASSERT(matchString->length() <= stringImpl->length());
- ASSERT(startOffset + matchString->length() <= stringImpl->length());
-
- unsigned matchLength = matchString->length();
- if (matchString->is8Bit())
- return equalSubstringIgnoringCase(stringImpl, startOffset, matchString->characters8(), matchLength);
- if (stringImpl->is8Bit())
- return equalIgnoringCase(stringImpl->characters8() + startOffset, matchString->characters16(), matchLength);
- return equalIgnoringCase(stringImpl->characters16() + startOffset, matchString->characters16(), matchLength);
-}
-
-bool StringImpl::startsWithIgnoringCase(const StringImpl* prefix) const
-{
- ASSERT(prefix);
- if (prefix->length() > length())
- return false;
- return equalSubstringIgnoringCase(this, 0, prefix);
-}
-
-ALWAYS_INLINE static bool equalSubstringIgnoringASCIICase(const StringImpl* stringImpl, unsigned startOffset, const LChar* matchString, unsigned matchLength)
-{
- ASSERT(stringImpl);
- ASSERT(matchLength <= stringImpl->length());
- ASSERT(startOffset + matchLength <= stringImpl->length());
-
- if (stringImpl->is8Bit())
- return equalIgnoringASCIICase(stringImpl->characters8() + startOffset, matchString, matchLength);
- return equalIgnoringASCIICase(stringImpl->characters16() + startOffset, matchString, matchLength);
+ if (is8Bit()) {
+ if (prefix.is8Bit())
+ return equal(characters8(), prefix.characters8(), prefix.length());
+ return equal(characters8(), prefix.characters16(), prefix.length());
+ }
+ if (prefix.is8Bit())
+ return equal(characters16(), prefix.characters8(), prefix.length());
+ return equal(characters16(), prefix.characters16(), prefix.length());
}
-bool StringImpl::startsWithIgnoringASCIICase(const char* prefixString, unsigned prefixLength) const
+bool StringImpl::startsWithIgnoringCase(const StringView& prefix) const
{
- ASSERT(prefixLength);
- if (prefixLength > length())
+ if (prefix.length() > length())
return false;
- return equalSubstringIgnoringASCIICase(this, 0, reinterpret_cast<const LChar*>(prefixString), prefixLength);
-}
-
-ALWAYS_INLINE static bool equalSubstringIgnoringASCIICase(const StringImpl* stringImpl, unsigned startOffset, const StringImpl* matchString)
-{
- ASSERT(stringImpl);
- ASSERT(matchString);
- ASSERT(matchString->length() <= stringImpl->length());
- ASSERT(startOffset + matchString->length() <= stringImpl->length());
-
- unsigned matchLength = matchString->length();
- if (matchString->is8Bit())
- return equalSubstringIgnoringASCIICase(stringImpl, startOffset, matchString->characters8(), matchLength);
- if (stringImpl->is8Bit())
- return equalIgnoringASCIICase(stringImpl->characters8() + startOffset, matchString->characters16(), matchLength);
- return equalIgnoringASCIICase(stringImpl->characters16() + startOffset, matchString->characters16(), matchLength);
+ if (is8Bit()) {
+ if (prefix.is8Bit())
+ return equalIgnoringCase(characters8(), prefix.characters8(), prefix.length());
+ return equalIgnoringCase(characters8(), prefix.characters16(), prefix.length());
+ }
+ if (prefix.is8Bit())
+ return equalIgnoringCase(characters16(), prefix.characters8(), prefix.length());
+ return equalIgnoringCase(characters16(), prefix.characters16(), prefix.length());
}
-bool StringImpl::startsWithIgnoringASCIICase(const StringImpl* prefix) const
+bool StringImpl::startsWithIgnoringASCIICase(const StringView& prefix) const
{
- ASSERT(prefix);
- if (prefix->length() > length())
+ if (prefix.length() > length())
return false;
- return equalSubstringIgnoringASCIICase(this, 0, prefix);
+ if (is8Bit()) {
+ if (prefix.is8Bit())
+ return equalIgnoringASCIICase(characters8(), prefix.characters8(), prefix.length());
+ return equalIgnoringASCIICase(characters8(), prefix.characters16(), prefix.length());
+ }
+ if (prefix.is8Bit())
+ return equalIgnoringASCIICase(characters16(), prefix.characters8(), prefix.length());
+ return equalIgnoringASCIICase(characters16(), prefix.characters16(), prefix.length());
}
bool StringImpl::endsWith(UChar character) const
@@ -1634,55 +1549,49 @@ bool StringImpl::endsWith(UChar character) const
return m_length && (*this)[m_length - 1] == character;
}
-bool StringImpl::endsWith(const char* suffixString, unsigned suffixLength) const
-{
- ASSERT(suffixLength);
- if (suffixLength > length())
- return false;
- return equalSubstring(this, length() - suffixLength, reinterpret_cast<const LChar*>(suffixString), suffixLength);
-}
-
-bool StringImpl::endsWith(const StringImpl* suffix) const
-{
- ASSERT(suffix);
- unsigned suffixLength = suffix->length();
- if (suffixLength > length())
- return false;
- return equalSubstring(this, length() - suffixLength, suffix);
-}
-
-bool StringImpl::endsWithIgnoringCase(const char* suffixString, unsigned suffixLength) const
+bool StringImpl::endsWith(const StringView& suffix) const
{
- ASSERT(suffixLength);
- if (suffixLength > length())
+ if (suffix.length() > length())
return false;
- return equalSubstringIgnoringCase(this, length() - suffixLength, reinterpret_cast<const LChar*>(suffixString), suffixLength);
-}
-
-bool StringImpl::endsWithIgnoringCase(const StringImpl* suffix) const
-{
- ASSERT(suffix);
- unsigned suffixLength = suffix->length();
- if (suffixLength > length())
- return false;
- return equalSubstringIgnoringCase(this, length() - suffixLength, suffix);
+ unsigned startOffset = length() - suffix.length();
+ if (is8Bit()) {
+ if (suffix.is8Bit())
+ return equal(characters8() + startOffset, suffix.characters8(), suffix.length());
+ return equal(characters8() + startOffset, suffix.characters16(), suffix.length());
+ }
+ if (suffix.is8Bit())
+ return equal(characters16() + startOffset, suffix.characters8(), suffix.length());
+ return equal(characters16() + startOffset, suffix.characters16(), suffix.length());
}
-bool StringImpl::endsWithIgnoringASCIICase(const char* suffixString, unsigned suffixLength) const
+bool StringImpl::endsWithIgnoringCase(const StringView& suffix) const
{
- ASSERT(suffixLength);
- if (suffixLength > length())
+ if (suffix.length() > length())
return false;
- return equalSubstringIgnoringASCIICase(this, length() - suffixLength, reinterpret_cast<const LChar*>(suffixString), suffixLength);
+ unsigned startOffset = length() - suffix.length();
+ if (is8Bit()) {
+ if (suffix.is8Bit())
+ return equalIgnoringCase(characters8() + startOffset, suffix.characters8(), suffix.length());
+ return equalIgnoringCase(characters8() + startOffset, suffix.characters16(), suffix.length());
+ }
+ if (suffix.is8Bit())
+ return equalIgnoringCase(characters16() + startOffset, suffix.characters8(), suffix.length());
+ return equalIgnoringCase(characters16() + startOffset, suffix.characters16(), suffix.length());
}
-bool StringImpl::endsWithIgnoringASCIICase(const StringImpl* suffix) const
+bool StringImpl::endsWithIgnoringASCIICase(const StringView& suffix) const
{
- ASSERT(suffix);
- unsigned suffixLength = suffix->length();
- if (suffixLength > length())
+ if (suffix.length() > length())
return false;
- return equalSubstringIgnoringASCIICase(this, length() - suffixLength, suffix);
+ unsigned startOffset = length() - suffix.length();
+ if (is8Bit()) {
+ if (suffix.is8Bit())
+ return equalIgnoringASCIICase(characters8() + startOffset, suffix.characters8(), suffix.length());
+ return equalIgnoringASCIICase(characters8() + startOffset, suffix.characters16(), suffix.length());
+ }
+ if (suffix.is8Bit())
+ return equalIgnoringASCIICase(characters16() + startOffset, suffix.characters8(), suffix.length());
+ return equalIgnoringASCIICase(characters16() + startOffset, suffix.characters16(), suffix.length());
}
PassRefPtr<StringImpl> StringImpl::replace(UChar oldC, UChar newC)
@@ -2257,32 +2166,6 @@ bool equalIgnoringNullity(StringImpl* a, StringImpl* b)
return equal(a, b);
}
-bool equalIgnoringASCIICase(const StringImpl* a, const StringImpl* b)
-{
- if (!a || !b)
- return !a == !b;
- unsigned length = b->length();
- if (a->length() != length)
- return false;
- if (a->is8Bit()) {
- if (b->is8Bit())
- return equalIgnoringASCIICase(a->characters8(), b->characters8(), length);
- return equalIgnoringASCIICase(a->characters8(), b->characters16(), length);
- }
- if (b->is8Bit())
- return equalIgnoringASCIICase(a->characters16(), b->characters8(), length);
- return equalIgnoringASCIICase(a->characters16(), b->characters16(), length);
-}
-
-bool equalIgnoringASCIICase(const StringImpl* a, const LChar* b, unsigned length)
-{
- if (!a || !b)
- return !a == !b;
- if (length != a->length())
- return false;
- return equalSubstringIgnoringASCIICase(a, 0, b, length);
-}
-
template<typename CharacterType1, typename CharacterType2>
int codePointCompareIgnoringASCIICase(unsigned l1, unsigned l2, const CharacterType1* c1, const CharacterType2* c2)
{

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