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Clean API

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This commit is contained in:
Victor Zverovich 2018-01-14 14:15:59 -08:00
parent 9a53a706fc
commit c2fecb9b2a
9 changed files with 91 additions and 95 deletions
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56
include/fmt/core.h
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@ -11,6 +11,7 @@
#include <cassert>
#include <cstdio>
#include <cstring>
#include <iterator>
#include <string>
#include <type_traits>
@ -265,6 +266,25 @@ class basic_buffer {
const T &operator[](std::size_t index) const { return ptr_[index]; }
};
using buffer = internal::basic_buffer<char>;
using wbuffer = internal::basic_buffer<wchar_t>;
template <typename Container>
class container_buffer
: public internal::basic_buffer<typename Container::value_type> {
private:
Container &container_;
protected:
virtual void grow(std::size_t capacity) {
container_.resize(capacity);
this->set(&container_[0], capacity);
}
public:
explicit container_buffer(Container &c) : container_(c) {}
};
// A helper function to suppress bogus "conditional expression is constant"
// warnings.
template <typename T>
@ -875,11 +895,8 @@ class basic_context :
format_arg get_arg(basic_string_view<char_type> name);
};
using buffer = internal::basic_buffer<char>;
using wbuffer = internal::basic_buffer<wchar_t>;
using context = basic_context<internal::dynamic_range<buffer>>;
using wcontext = basic_context<internal::dynamic_range<wbuffer>>;
using context = basic_context<internal::dynamic_range<internal::buffer>>;
using wcontext = basic_context<internal::dynamic_range<internal::wbuffer>>;
template <typename Context, typename ...Args>
class arg_store {
@ -1060,19 +1077,24 @@ inline void print_colored(Color c, string_view format_str,
vprint_colored(c, format_str, make_args(args...));
}
void vformat_to(buffer &buf, string_view format_str, format_args args);
void vformat_to(wbuffer &buf, wstring_view format_str, wformat_args args);
void vformat_to(internal::buffer &buf, string_view format_str,
format_args args);
void vformat_to(internal::wbuffer &buf, wstring_view format_str,
wformat_args args);
template <typename... Args>
inline void format_to(buffer &buf, string_view format_str,
const Args & ... args) {
vformat_to(buf, format_str, make_args(args...));
}
template <typename... Args>
inline void format_to(wbuffer &buf, wstring_view format_str,
const Args & ... args) {
vformat_to(buf, format_str, make_args<wcontext>(args...));
/**
Formats a string and writes the output to out.
*/
template <typename Container>
void vformat_to(std::back_insert_iterator<Container> out,
string_view format_str, format_args args) {
using iterator = std::back_insert_iterator<Container>;
struct container_accessor : iterator {
container_accessor(iterator it) : iterator(it) {}
using iterator::container;
} accessor(out);
internal::container_buffer<Container> buf(*accessor.container);
vformat_to(buf, format_str, args);
}
std::string vformat(string_view format_str, format_args args);

6
include/fmt/format.cc
View File

@ -91,7 +91,7 @@ inline int fmt_snprintf(char *buffer, size_t size, const char *format, ...) {
const char RESET_COLOR[] = "\x1b[0m";
typedef void (*FormatFunc)(buffer &, int, string_view);
typedef void (*FormatFunc)(internal::buffer &, int, string_view);
// Portable thread-safe version of strerror.
// Sets buffer to point to a string describing the error code.
@ -161,7 +161,7 @@ int safe_strerror(
return StrError(error_code, buffer, buffer_size).run();
}
void format_error_code(buffer &out, int error_code,
void format_error_code(internal::buffer &out, int error_code,
string_view message) FMT_NOEXCEPT {
// Report error code making sure that the output fits into
// INLINE_BUFFER_SIZE to avoid dynamic memory allocation and potential
@ -358,7 +358,7 @@ FMT_FUNC void internal::format_windows_error(
#endif // FMT_USE_WINDOWS_H
FMT_FUNC void format_system_error(
buffer &out, int error_code, string_view message) FMT_NOEXCEPT {
internal::buffer &out, int error_code, string_view message) FMT_NOEXCEPT {
FMT_TRY {
memory_buffer buf;
buf.resize(internal::INLINE_BUFFER_SIZE);

52
include/fmt/format.h
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@ -31,7 +31,6 @@
#include <cassert>
#include <cmath>
#include <cstring>
#include <iterator>
#include <limits>
#include <memory>
#include <stdexcept>
@ -307,22 +306,6 @@ void basic_buffer<T>::append(const U *begin, const U *end) {
internal::make_ptr(ptr_, capacity_) + size_);
size_ = new_size;
}
template <typename Container>
class container_buffer
: public internal::basic_buffer<typename Container::value_type> {
private:
Container &container_;
protected:
virtual void grow(std::size_t capacity) {
container_.resize(capacity);
this->set(&container_[0], capacity);
}
public:
explicit container_buffer(Container &c) : container_(c) {}
};
} // namespace internal
// A wrapper around std::locale used to reduce compile times since <locale>
@ -2061,7 +2044,7 @@ class system_error : public std::runtime_error {
may look like "Unknown error -1" and is platform-dependent.
\endrst
*/
FMT_API void format_system_error(fmt::buffer &out, int error_code,
FMT_API void format_system_error(fmt::internal::buffer &out, int error_code,
fmt::string_view message) FMT_NOEXCEPT;
/**
@ -2582,8 +2565,8 @@ void basic_writer<Range>::write_double(T value, const format_specs &spec) {
});
}
using writer = basic_writer<internal::dynamic_range<buffer>>;
using wwriter = basic_writer<internal::dynamic_range<wbuffer>>;
using writer = basic_writer<internal::dynamic_range<internal::buffer>>;
using wwriter = basic_writer<internal::dynamic_range<internal::wbuffer>>;
// Reports a system error without throwing an exception.
// Can be used to report errors from destructors.
@ -3019,27 +3002,28 @@ std::basic_string<Char> to_string(const basic_memory_buffer<Char> &buffer) {
return std::basic_string<Char>(buffer.data(), buffer.size());
}
inline void vformat_to(buffer &buf, string_view format_str, format_args args) {
using range = internal::dynamic_range<buffer>;
inline void vformat_to(internal::buffer &buf, string_view format_str,
format_args args) {
using range = internal::dynamic_range<internal::buffer>;
do_vformat_to<arg_formatter<range>>(buf, format_str, args);
}
inline void vformat_to(wbuffer &buf, wstring_view format_str,
inline void vformat_to(internal::wbuffer &buf, wstring_view format_str,
wformat_args args) {
using range = internal::dynamic_range<wbuffer>;
using range = internal::dynamic_range<internal::wbuffer>;
do_vformat_to<arg_formatter<range>>(buf, format_str, args);
}
template <typename Container>
void vformat_to(std::back_insert_iterator<Container> out,
string_view format_str, format_args args) {
using iterator = std::back_insert_iterator<Container>;
struct container_extractor : iterator {
container_extractor(iterator it) : iterator(it) {}
using iterator::container;
} extractor(out);
internal::container_buffer<Container> buf(*extractor.container);
vformat_to(buf, format_str, args);
template <typename... Args>
inline void format_to(memory_buffer &buf, string_view format_str,
const Args & ... args) {
vformat_to(buf, format_str, make_args(args...));
}
template <typename... Args>
inline void format_to(wmemory_buffer &buf, wstring_view format_str,
const Args & ... args) {
vformat_to(buf, format_str, make_args<wcontext>(args...));
}
template <typename Container, typename... Args>

19
include/fmt/printf.h
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@ -530,7 +530,7 @@ void printf(internal::basic_buffer<Char> &buf, basic_string_view<Char> format,
template <typename Buffer>
using printf_context = basic_printf_context<internal::dynamic_range<Buffer>>;
using printf_args = basic_format_args<printf_context<buffer>>;
using printf_args = basic_format_args<printf_context<internal::buffer>>;
inline std::string vsprintf(string_view format, printf_args args) {
memory_buffer buffer;
@ -549,11 +549,13 @@ inline std::string vsprintf(string_view format, printf_args args) {
*/
template <typename... Args>
inline std::string sprintf(string_view format_str, const Args & ... args) {
return vsprintf(format_str, make_args<printf_context<buffer>>(args...));
return vsprintf(format_str,
make_args<printf_context<internal::buffer>>(args...));
}
inline std::wstring vsprintf(wstring_view format,
basic_format_args<printf_context<wbuffer>> args) {
inline std::wstring vsprintf(
wstring_view format,
basic_format_args<printf_context<internal::wbuffer>> args) {
wmemory_buffer buffer;
printf(buffer, format, args);
return to_string(buffer);
@ -561,7 +563,7 @@ inline std::wstring vsprintf(wstring_view format,
template <typename... Args>
inline std::wstring sprintf(wstring_view format_str, const Args & ... args) {
auto vargs = make_args<printf_context<wbuffer>>(args...);
auto vargs = make_args<printf_context<internal::wbuffer>>(args...);
return vsprintf(format_str, vargs);
}
@ -584,7 +586,7 @@ inline int vfprintf(std::FILE *f, string_view format, printf_args args) {
*/
template <typename... Args>
inline int fprintf(std::FILE *f, string_view format_str, const Args & ... args) {
auto vargs = make_args<printf_context<buffer>>(args...);
auto vargs = make_args<printf_context<internal::buffer>>(args...);
return vfprintf(f, format_str, vargs);
}
@ -603,7 +605,8 @@ inline int vprintf(string_view format, printf_args args) {
*/
template <typename... Args>
inline int printf(string_view format_str, const Args & ... args) {
return vprintf(format_str, make_args<printf_context<buffer>>(args...));
return vprintf(format_str,
make_args<printf_context<internal::buffer>>(args...));
}
inline int vfprintf(std::ostream &os, string_view format_str,
@ -626,7 +629,7 @@ inline int vfprintf(std::ostream &os, string_view format_str,
template <typename... Args>
inline int fprintf(std::ostream &os, string_view format_str,
const Args & ... args) {
auto vargs = make_args<printf_context<buffer>>(args...);
auto vargs = make_args<printf_context<internal::buffer>>(args...);
return vfprintf(os, format_str, vargs);
}
} // namespace fmt

2
include/fmt/time.h
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@ -31,7 +31,7 @@ struct formatter<std::tm> {
}
auto format(const std::tm &tm, context &ctx) -> decltype(ctx.begin()) {
buffer &buf = ctx.range().container();
internal::buffer &buf = ctx.range().container();
std::size_t start = buf.size();
for (;;) {
std::size_t size = buf.capacity() - start;

5
test/custom-formatter-test.cc
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@ -15,9 +15,10 @@ using fmt::printf_arg_formatter;
// A custom argument formatter that doesn't print `-` for floating-point values
// rounded to 0.
class CustomArgFormatter :
public fmt::arg_formatter<fmt::internal::dynamic_range<fmt::buffer>> {
public fmt::arg_formatter<
fmt::internal::dynamic_range<fmt::internal::buffer>> {
public:
using range = fmt::internal::dynamic_range<fmt::buffer>;
using range = fmt::internal::dynamic_range<fmt::internal::buffer>;
using base = fmt::arg_formatter<range>;
CustomArgFormatter(range r, fmt::basic_context<range> &ctx,

32
test/format-test.cc
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@ -374,20 +374,17 @@ TEST(WriterTest, WWriter) {
}
TEST(FormatToTest, FormatWithoutArgs) {
fmt::memory_buffer buffer;
format_to(buffer, "test");
EXPECT_EQ("test", std::string(buffer.data(), buffer.size()));
std::string s;
fmt::format_to(std::back_inserter(s), "test");
EXPECT_EQ("test", s);
}
TEST(FormatToTest, Format) {
fmt::memory_buffer buffer;
format_to(buffer, "part{0}", 1);
EXPECT_EQ(strlen("part1"), buffer.size());
EXPECT_EQ("part1", std::string(buffer.data(), buffer.size()));
format_to(buffer, "part{0}", 2);
EXPECT_EQ(strlen("part1part2"), buffer.size());
EXPECT_EQ("part1part2", std::string(buffer.data(), buffer.size()));
EXPECT_EQ("part1part2", to_string(buffer));
std::string s;
fmt::format_to(std::back_inserter(s), "part{0}", 1);
EXPECT_EQ("part1", s);
fmt::format_to(std::back_inserter(s), "part{0}", 2);
EXPECT_EQ("part1part2", s);
}
TEST(FormatterTest, Escape) {
@ -1484,7 +1481,7 @@ TEST(FormatTest, Enum) {
EXPECT_EQ("0", fmt::format("{}", A));
}
using buffer_range = fmt::internal::dynamic_range<fmt::buffer>;
using buffer_range = fmt::internal::dynamic_range<fmt::internal::buffer>;
class mock_arg_formatter :
public fmt::internal::arg_formatter_base<buffer_range> {
@ -1908,17 +1905,6 @@ TEST(FormatTest, FormatStringErrors) {
int, int);
}
TEST(FormatTest, OutputIterator) {
std::string s;
fmt::format_to(std::back_inserter(s), "{}", 42);
std::vector<char> v;
fmt::format_to(std::back_inserter(v), "{}", 42);
EXPECT_EQ("42", s);
EXPECT_EQ("42", std::string(v.begin(), v.end()));
}
TEST(StringTest, ToString) {
EXPECT_EQ("42", fmt::to_string(42));
}

12
test/ostream-test.cc
View File

@ -58,10 +58,10 @@ TEST(OStreamTest, Enum) {
EXPECT_EQ("0", fmt::format("{}", A));
}
struct TestArgFormatter
: fmt::arg_formatter<fmt::internal::dynamic_range<fmt::buffer>> {
using base = fmt::arg_formatter<fmt::internal::dynamic_range<fmt::buffer>>;
TestArgFormatter(fmt::buffer &buf, fmt::context &ctx, fmt::format_specs &s)
struct test_arg_formatter : fmt::arg_formatter<fmt::context::range_type> {
using base = fmt::arg_formatter<fmt::context::range_type>;
test_arg_formatter(fmt::internal::buffer &buf, fmt::context &ctx,
fmt::format_specs &s)
: base(buf, ctx, s) {}
};
@ -69,7 +69,7 @@ TEST(OStreamTest, CustomArg) {
fmt::memory_buffer buffer;
fmt::context ctx(buffer, "", fmt::format_args());
fmt::format_specs spec;
TestArgFormatter af(buffer, ctx, spec);
test_arg_formatter af(buffer, ctx, spec);
visit(af, fmt::internal::make_arg<fmt::context>(TestEnum()));
EXPECT_EQ("TestEnum", std::string(buffer.data(), buffer.size()));
}
@ -136,7 +136,7 @@ TEST(OStreamTest, WriteToOStreamMaxSize) {
if (max_size <= fmt::internal::to_unsigned(max_streamsize))
return;
struct test_buffer : fmt::buffer {
struct test_buffer : fmt::internal::buffer {
explicit test_buffer(std::size_t size) { resize(size); }
void grow(std::size_t) {}
} buffer(max_size);

2
test/util-test.cc
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@ -720,7 +720,7 @@ TEST(UtilTest, UTF16ToUTF8Convert) {
#endif // _WIN32
typedef void (*FormatErrorMessage)(
fmt::buffer &out, int error_code, string_view message);
fmt::internal::buffer &out, int error_code, string_view message);
template <typename Error>
void check_throw_error(int error_code, FormatErrorMessage format) {