1 files changed, 274 insertions, 0 deletions
diff --git a/gfx/skia/skia/src/sksl/SkSLString.cpp b/gfx/skia/skia/src/sksl/SkSLString.cpp
new file mode 100644
index 0000000000..88eb1c7d3b
--- /dev/null
+++ b/gfx/skia/skia/src/sksl/SkSLString.cpp
@@ -0,0 +1,274 @@
+/*
+ * Copyright 2017 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "src/sksl/SkSLString.h"
+
+#include "src/sksl/SkSLUtil.h"
+#include <algorithm>
+#include <errno.h>
+#include <limits.h>
+#include <locale>
+#include <sstream>
+#include <string>
+
+namespace SkSL {
+
+String String::printf(const char* fmt, ...) {
+    va_list args;
+    va_start(args, fmt);
+    String result;
+    result.vappendf(fmt, args);
+    va_end(args);
+    return result;
+}
+
+void String::appendf(const char* fmt, ...) {
+    va_list args;
+    va_start(args, fmt);
+    this->vappendf(fmt, args);
+    va_end(args);
+}
+
+void String::reset() {
+    this->clear();
+}
+
+int String::findLastOf(const char c) const {
+    // Rely on find_last_of and remap the output
+    size_t index = this->find_last_of(c);
+    return (index == std::string::npos ? -1 : index);
+}
+
+void String::vappendf(const char* fmt, va_list args) {
+#ifdef SKSL_BUILD_FOR_WIN
+    #define VSNPRINTF    _vsnprintf
+#else
+    #define VSNPRINTF    vsnprintf
+#endif
+    #define BUFFER_SIZE 256
+    char buffer[BUFFER_SIZE];
+    va_list reuse;
+    va_copy(reuse, args);
+    size_t size = VSNPRINTF(buffer, BUFFER_SIZE, fmt, args);
+    if (BUFFER_SIZE >= size) {
+        this->append(buffer, size);
+    } else {
+        auto newBuffer = std::unique_ptr<char[]>(new char[size + 1]);
+        VSNPRINTF(newBuffer.get(), size + 1, fmt, reuse);
+        this->append(newBuffer.get(), size);
+    }
+    va_end(reuse);
+}
+
+
+bool String::startsWith(const char* s) const {
+    return !strncmp(c_str(), s, strlen(s));
+}
+
+bool String::endsWith(const char* s) const {
+    size_t len = strlen(s);
+    if (size() < len) {
+        return false;
+    }
+    return !strncmp(c_str() + size() - len, s, len);
+}
+
+int String::find(const String& substring, int fromPos) const {
+    return find(substring.c_str(), fromPos);
+}
+
+int String::find(const char* substring, int fromPos) const {
+    SkASSERT(fromPos >= 0);
+    size_t found = INHERITED::find(substring, (size_t) fromPos);
+    return found == std::string::npos ? -1 : found;
+}
+
+String String::operator+(const char* s) const {
+    String result(*this);
+    result.append(s);
+    return result;
+}
+
+String String::operator+(const String& s) const {
+    String result(*this);
+    result.append(s);
+    return result;
+}
+
+String String::operator+(StringFragment s) const {
+    String result(*this);
+    result.append(s.fChars, s.fLength);
+    return result;
+}
+
+String& String::operator+=(char c) {
+    INHERITED::operator+=(c);
+    return *this;
+}
+
+String& String::operator+=(const char* s) {
+    INHERITED::operator+=(s);
+    return *this;
+}
+
+String& String::operator+=(const String& s) {
+    INHERITED::operator+=(s);
+    return *this;
+}
+
+String& String::operator+=(StringFragment s) {
+    this->append(s.fChars, s.fLength);
+    return *this;
+}
+
+bool String::operator==(const String& s) const {
+    return this->size() == s.size() && !memcmp(c_str(), s.c_str(), this->size());
+}
+
+bool String::operator!=(const String& s) const {
+    return !(*this == s);
+}
+
+bool String::operator==(const char* s) const {
+    return this->size() == strlen(s) && !memcmp(c_str(), s, this->size());
+}
+
+bool String::operator!=(const char* s) const {
+    return !(*this == s);
+}
+
+String operator+(const char* s1, const String& s2) {
+    String result(s1);
+    result.append(s2);
+    return result;
+}
+
+bool operator==(const char* s1, const String& s2) {
+    return s2 == s1;
+}
+
+bool operator!=(const char* s1, const String& s2) {
+    return s2 != s1;
+}
+
+bool StringFragment::operator==(StringFragment s) const {
+    if (fLength != s.fLength) {
+        return false;
+    }
+    return !memcmp(fChars, s.fChars, fLength);
+}
+
+bool StringFragment::operator!=(StringFragment s) const {
+    if (fLength != s.fLength) {
+        return true;
+    }
+    return memcmp(fChars, s.fChars, fLength);
+}
+
+bool StringFragment::operator==(const char* s) const {
+    for (size_t i = 0; i < fLength; ++i) {
+        if (fChars[i] != s[i]) {
+            return false;
+        }
+    }
+    return 0 == s[fLength];
+}
+
+bool StringFragment::operator!=(const char* s) const {
+    for (size_t i = 0; i < fLength; ++i) {
+        if (fChars[i] != s[i]) {
+            return true;
+        }
+    }
+    return 0 != s[fLength];
+}
+
+bool StringFragment::operator<(StringFragment other) const {
+    int comparison = strncmp(fChars, other.fChars, std::min(fLength, other.fLength));
+    if (comparison) {
+        return comparison < 0;
+    }
+    return fLength < other.fLength;
+}
+
+bool operator==(const char* s1, StringFragment s2) {
+    return s2 == s1;
+}
+
+bool operator!=(const char* s1, StringFragment s2) {
+    return s2 != s1;
+}
+
+String to_string(int32_t value) {
+    return SkSL::String::printf("%d", value);
+}
+
+String to_string(uint32_t value) {
+    return SkSL::String::printf("%u", value);
+}
+
+String to_string(int64_t value) {
+    std::stringstream buffer;
+    buffer << value;
+    return String(buffer.str().c_str());
+}
+
+String to_string(uint64_t value) {
+    std::stringstream buffer;
+    buffer << value;
+    return String(buffer.str().c_str());
+}
+
+String to_string(double value) {
+    std::stringstream buffer;
+    buffer.imbue(std::locale::classic());
+    buffer.precision(17);
+    buffer << value;
+    bool needsDotZero = true;
+    const std::string str = buffer.str();
+    for (int i = str.size() - 1; i >= 0; --i) {
+        char c = str[i];
+        if (c == '.' || c == 'e') {
+            needsDotZero = false;
+            break;
+        }
+    }
+    if (needsDotZero) {
+        buffer << ".0";
+    }
+    return String(buffer.str().c_str());
+}
+
+SKSL_INT stoi(const String& s) {
+    char* p;
+    SkDEBUGCODE(errno = 0;)
+    long result = strtoul(s.c_str(), &p, 0);
+    SkASSERT(*p == 0);
+    SkASSERT(!errno);
+    return result;
+}
+
+SKSL_FLOAT stod(const String& s) {
+    double result;
+    std::string str(s.c_str(), s.size());
+    std::stringstream buffer(str);
+    buffer.imbue(std::locale::classic());
+    buffer >> result;
+    SkASSERT(!buffer.fail());
+    return result;
+}
+
+long stol(const String& s) {
+    char* p;
+    SkDEBUGCODE(errno = 0;)
+    long result = strtoul(s.c_str(), &p, 0);
+    SkASSERT(*p == 0);
+    SkASSERT(!errno);
+    return result;
+}
+
+} // namespace