mirror of
https://github.com/fmtlib/fmt.git
synced 2026-05-03 19:30:47 +02:00
Implemented fmt::prepare()
Implementation of fmt::prepare() function and features around it.
This commit is contained in:
stryku
Victor Zverovich
@@ -94,6 +94,7 @@ if (NOT (MSVC AND BUILD_SHARED_LIBS))
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endif ()
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add_fmt_test(locale-test)
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add_fmt_test(ostream-test)
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add_fmt_test(prepare-test)
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add_fmt_test(printf-test)
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add_fmt_test(time-test)
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add_fmt_test(custom-formatter-test)
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+10
-8
@@ -2172,9 +2172,9 @@ TEST(FormatTest, ConstexprParseFormatSpecs) {
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static_assert(parse_test_specs("#").res == handler::HASH, "");
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static_assert(parse_test_specs("0").res == handler::ZERO, "");
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static_assert(parse_test_specs("42").width == 42, "");
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static_assert(parse_test_specs("{42}").width_ref.index == 42, "");
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static_assert(parse_test_specs("{42}").width_ref.val.index == 42, "");
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static_assert(parse_test_specs(".42").precision == 42, "");
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static_assert(parse_test_specs(".{42}").precision_ref.index == 42, "");
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static_assert(parse_test_specs(".{42}").precision_ref.val.index == 42, "");
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static_assert(parse_test_specs("d").type == 'd', "");
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static_assert(parse_test_specs("{<").res == handler::ERROR, "");
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}
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@@ -2200,6 +2200,8 @@ struct test_context {
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FMT_CONSTEXPR test_context &parse_context() { return *this; }
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FMT_CONSTEXPR test_context error_handler() { return *this; }
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FMT_CONSTEXPR const char *begin() { return FMT_NULL; }
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FMT_CONSTEXPR const char *end() { return FMT_NULL; }
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};
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template <size_t N>
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@@ -2247,11 +2249,11 @@ TEST(FormatTest, ConstexprDynamicSpecsHandler) {
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static_assert(parse_dynamic_specs("#").has(fmt::HASH_FLAG), "");
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static_assert(parse_dynamic_specs("0").align() == fmt::ALIGN_NUMERIC, "");
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static_assert(parse_dynamic_specs("42").width() == 42, "");
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static_assert(parse_dynamic_specs("{}").width_ref.index == 33, "");
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static_assert(parse_dynamic_specs("{42}").width_ref.index == 42, "");
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static_assert(parse_dynamic_specs("{}").width_ref.val.index == 33, "");
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static_assert(parse_dynamic_specs("{42}").width_ref.val.index == 42, "");
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static_assert(parse_dynamic_specs(".42").precision == 42, "");
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static_assert(parse_dynamic_specs(".{}").precision_ref.index == 33, "");
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static_assert(parse_dynamic_specs(".{42}").precision_ref.index == 42, "");
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static_assert(parse_dynamic_specs(".{}").precision_ref.val.index == 33, "");
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static_assert(parse_dynamic_specs(".{42}").precision_ref.val.index == 42, "");
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static_assert(parse_dynamic_specs("d").type == 'd', "");
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}
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@@ -2273,9 +2275,9 @@ TEST(FormatTest, ConstexprSpecsChecker) {
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static_assert(check_specs("#").res == handler::HASH, "");
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static_assert(check_specs("0").res == handler::ZERO, "");
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static_assert(check_specs("42").width == 42, "");
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static_assert(check_specs("{42}").width_ref.index == 42, "");
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static_assert(check_specs("{42}").width_ref.val.index == 42, "");
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static_assert(check_specs(".42").precision == 42, "");
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static_assert(check_specs(".{42}").precision_ref.index == 42, "");
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static_assert(check_specs(".{42}").precision_ref.val.index == 42, "");
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static_assert(check_specs("d").type == 'd', "");
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static_assert(check_specs("{<").res == handler::ERROR, "");
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}
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@@ -154,7 +154,7 @@ TEST(OStreamTest, WriteToOStreamMaxSize) {
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EXPECT_CALL(streambuf, xsputn(data, static_cast<std::streamsize>(n)))
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.WillOnce(testing::Return(max_streamsize));
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data += n;
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size -= n;
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size -= static_cast<std::size_t>(n);
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} while (size != 0);
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fmt::internal::write(os, buffer);
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}
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@@ -0,0 +1,643 @@
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// Formatting library for C++ - formatting library tests
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//
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// Copyright (c) 2012 - present, Victor Zverovich
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// All rights reserved.
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//
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// For the license information refer to prepare.h.
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#include <cctype>
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#include <cfloat>
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#include <climits>
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#include <cmath>
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#include <cstring>
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#include <deque>
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#include <list>
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#include <memory>
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#include <stdint.h>
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#include <string>
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// Check if fmt/prepare.h compiles with windows.h included before it.
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#ifdef _WIN32
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#include <windows.h>
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#endif
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#include "fmt/prepare.h"
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#include "gmock.h"
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#include "gtest-extra.h"
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#include "mock-allocator.h"
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#include "util.h"
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#undef ERROR
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#undef min
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#undef max
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using testing::Return;
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using testing::StrictMock;
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class mock_parts_collector {
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public:
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MOCK_METHOD1(add, void(fmt::format_part<char>));
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MOCK_METHOD1(substitute_last, void(fmt::format_part<char>));
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MOCK_METHOD0(last, fmt::format_part<char>());
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};
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FMT_BEGIN_NAMESPACE
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bool operator==(const internal::string_view_metadata &lhs,
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const internal::string_view_metadata &rhs) {
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return std::tie(lhs.offset_, lhs.size_) == std::tie(rhs.offset_, rhs.size_);
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}
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bool operator!=(const internal::string_view_metadata &lhs,
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const internal::string_view_metadata &rhs) {
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return !(lhs == rhs);
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}
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bool operator==(const format_part<char>::specification &lhs,
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const format_part<char>::specification &rhs) {
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if (lhs.arg_id.which != rhs.arg_id.which) {
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return false;
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}
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typedef format_part<char>::argument_id::which_arg_id which_arg_id;
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switch (lhs.arg_id.which) {
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case which_arg_id::index: {
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if (lhs.arg_id.val.index != rhs.arg_id.val.index) {
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return false;
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}
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} break;
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case which_arg_id::named_index: {
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if (lhs.arg_id.val.named_index != rhs.arg_id.val.named_index) {
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return false;
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}
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} break;
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}
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return std::tie(lhs.parsed_specs.width_, lhs.parsed_specs.fill_,
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lhs.parsed_specs.align_, lhs.parsed_specs.precision,
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lhs.parsed_specs.flags, lhs.parsed_specs.type) ==
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std::tie(rhs.parsed_specs.width_, rhs.parsed_specs.fill_,
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rhs.parsed_specs.align_, rhs.parsed_specs.precision,
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rhs.parsed_specs.flags, rhs.parsed_specs.type);
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}
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bool operator!=(const format_part<char>::specification &lhs,
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const format_part<char>::specification &rhs) {
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return !(lhs == rhs);
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}
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bool operator==(const format_part<char> &lhs,
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const fmt::format_part<char> &rhs) {
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typedef format_part<char>::which_value which_value;
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if (lhs.which != rhs.which ||
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lhs.end_of_argument_id != rhs.end_of_argument_id) {
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return false;
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}
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switch (lhs.which) {
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case which_value::argument_id: {
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return lhs.val.arg_id == rhs.val.arg_id;
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}
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case which_value::named_argument_id: {
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return lhs.val.named_arg_id == rhs.val.named_arg_id;
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}
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case which_value::text: {
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return lhs.val.text == rhs.val.text;
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}
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case which_value::specification: {
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return lhs.val.spec == rhs.val.spec;
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}
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}
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return false;
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}
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bool operator!=(const fmt::format_part<char> &lhs,
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const fmt::format_part<char> &rhs) {
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return !(lhs == rhs);
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}
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FMT_END_NAMESPACE
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TEST(PrepareTest, FormatPart_ComparisonOperators) {
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typedef fmt::format_part<char> format_part;
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typedef fmt::internal::dynamic_format_specs<char> prepared_specs;
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{
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const auto part = format_part(0u);
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const auto other = format_part(0u);
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EXPECT_EQ(part, other);
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}
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{
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const auto lhs = format_part(0u);
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const auto rhs = format_part(1u);
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EXPECT_NE(lhs, rhs);
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}
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{
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const auto lhs = format_part(fmt::internal::string_view_metadata(0, 42));
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const auto rhs = format_part(fmt::internal::string_view_metadata(0, 42));
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EXPECT_EQ(lhs, rhs);
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}
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{
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const auto lhs = format_part(fmt::internal::string_view_metadata(0, 42));
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const auto rhs = format_part(fmt::internal::string_view_metadata(0, 4422));
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EXPECT_NE(lhs, rhs);
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}
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{
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auto lhs = format_part(0u);
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auto rhs = format_part(fmt::internal::string_view_metadata(0, 42));
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EXPECT_NE(lhs, rhs);
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rhs = format_part(fmt::internal::string_view_metadata(0, 0));
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EXPECT_NE(lhs, rhs);
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}
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{
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auto lhs = format_part(0u);
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lhs.end_of_argument_id = 42;
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auto rhs = format_part(0u);
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rhs.end_of_argument_id = 42;
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EXPECT_EQ(lhs, rhs);
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rhs.end_of_argument_id = 13;
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EXPECT_NE(lhs, rhs);
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}
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{
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const auto specs_argument_id = 0u;
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const auto specs_named_argument_id =
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fmt::internal::string_view_metadata(0, 42);
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auto specs = format_part::specification(0u);
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auto lhs = format_part(specs);
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auto rhs = format_part(specs);
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EXPECT_EQ(lhs, rhs);
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const auto specs_text = fmt::string_view("<10");
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specs.parsed_specs = prepared_specs();
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lhs = format_part(specs);
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rhs = format_part(specs);
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EXPECT_EQ(lhs, rhs);
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specs = format_part::specification(specs_named_argument_id);
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lhs = format_part(specs);
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rhs = format_part(specs);
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EXPECT_EQ(lhs, rhs);
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specs.parsed_specs = prepared_specs();
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lhs = format_part(specs);
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rhs = format_part(specs);
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EXPECT_EQ(lhs, rhs);
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auto lhs_spec = format_part::specification(specs_argument_id);
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auto rhs_spec = format_part::specification(specs_named_argument_id);
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lhs = format_part(lhs_spec);
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rhs = format_part(rhs_spec);
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EXPECT_NE(lhs, rhs);
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const auto lhs_specs_text = fmt::string_view("<10");
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const auto rhs_specs_text = fmt::string_view("<42");
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lhs_spec = format_part::specification(specs_argument_id);
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rhs_spec = format_part::specification(specs_argument_id);
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lhs_spec.parsed_specs.precision = 1;
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rhs_spec.parsed_specs.precision = 2;
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lhs = format_part(lhs_spec);
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rhs = format_part(rhs_spec);
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EXPECT_NE(lhs, rhs);
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}
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{
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const auto specs_text = fmt::string_view{"<10"};
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const auto specs_argument_id = 0u;
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const auto specs_named_argument_id =
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fmt::internal::string_view_metadata(0, 42);
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auto specs = format_part::specification(specs_argument_id);
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auto lhs = format_part(specs);
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auto rhs = format_part(0u);
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auto rhs2 = format_part(fmt::internal::string_view_metadata(0, 42));
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EXPECT_NE(lhs, rhs);
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EXPECT_NE(lhs, rhs2);
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specs.parsed_specs = prepared_specs();
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lhs = format_part{specs};
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EXPECT_NE(lhs, rhs);
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EXPECT_NE(lhs, rhs2);
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specs = format_part::specification(specs_named_argument_id);
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EXPECT_NE(lhs, rhs);
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EXPECT_NE(lhs, rhs2);
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specs.parsed_specs = prepared_specs();
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lhs = format_part(specs);
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EXPECT_NE(lhs, rhs);
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EXPECT_NE(lhs, rhs2);
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}
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}
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TEST(PrepareTest, FormatPreparationHandler_OnText_AddsPartWithText) {
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typedef fmt::format_part<char> format_part;
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typedef StrictMock<mock_parts_collector> parts_mock;
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parts_mock parts;
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const auto format = fmt::internal::to_string_view("text");
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fmt::internal::format_preparation_handler<char, parts_mock> handler(format,
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parts);
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const auto expected_text = fmt::internal::string_view_metadata(
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0u, static_cast<unsigned>(format.size()));
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EXPECT_CALL(parts, add(format_part(expected_text)));
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handler.on_text(format.begin(), format.end());
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}
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TEST(PrepareTest, FormatPreparationHandler_OnArgId_AddsPartWithIncrementedId) {
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typedef fmt::format_part<char> format_part;
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typedef StrictMock<mock_parts_collector> parts_mock;
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parts_mock parts;
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const auto format = fmt::internal::to_string_view("");
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fmt::internal::format_preparation_handler<char, parts_mock> handler(format,
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parts);
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const auto expected_first_arg_id = 0u;
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const auto expected_second_arg_id = 1u;
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EXPECT_CALL(parts, add(format_part(expected_first_arg_id)));
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EXPECT_CALL(parts, add(format_part(expected_second_arg_id)));
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handler.on_arg_id();
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handler.on_arg_id();
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}
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TEST(PrepareTest, FormatPreparationHandler_OnArgId_AddsPartWithPassedId) {
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typedef fmt::format_part<char> format_part;
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typedef StrictMock<mock_parts_collector> parts_mock;
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parts_mock parts;
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const auto format = fmt::internal::to_string_view("");
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fmt::internal::format_preparation_handler<char, parts_mock> handler(format,
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parts);
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const auto expected_first_arg_id = 2u;
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const auto expected_second_arg_id = 0u;
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const auto expected_third_arg_id = 1u;
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EXPECT_CALL(parts, add(format_part(expected_first_arg_id)));
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EXPECT_CALL(parts, add(format_part(expected_second_arg_id)));
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EXPECT_CALL(parts, add(format_part(expected_third_arg_id)));
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handler.on_arg_id(expected_first_arg_id);
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handler.on_arg_id(expected_second_arg_id);
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handler.on_arg_id(expected_third_arg_id);
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}
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TEST(PrepareTest, FormatPreparationHandler_OnArgId_AddsPartWithPassedNamedId) {
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typedef fmt::format_part<char> format_part;
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typedef format_part::named_argument_id named_argument_id;
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typedef StrictMock<mock_parts_collector> parts_mock;
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parts_mock parts;
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const auto format = fmt::internal::to_string_view("0123456789");
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fmt::internal::format_preparation_handler<char, parts_mock> handler(format,
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parts);
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const auto expected_first_arg_id = fmt::string_view(format.data(), 1);
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const auto expected_first_arg_view_metadata =
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fmt::internal::string_view_metadata(0, 1);
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const auto expected_second_arg_id = fmt::string_view(format.data() + 3, 2);
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const auto expected_second_arg_view_metadata =
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fmt::internal::string_view_metadata(3, 2);
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const auto expected_third_arg_id = fmt::string_view(format.data() + 6, 3);
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const auto expected_third_arg_view_metadata =
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fmt::internal::string_view_metadata(6, 3);
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EXPECT_CALL(parts, add(format_part(
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named_argument_id(expected_first_arg_view_metadata))));
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EXPECT_CALL(
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parts,
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add(format_part(named_argument_id(expected_second_arg_view_metadata))));
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EXPECT_CALL(parts, add(format_part(
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named_argument_id(expected_third_arg_view_metadata))));
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handler.on_arg_id(expected_first_arg_id);
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handler.on_arg_id(expected_second_arg_id);
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handler.on_arg_id(expected_third_arg_id);
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}
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TEST(PrepareTest,
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FormatPreparationHandler_OnReplacementField_SetsEndOfArgumentId) {
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typedef fmt::format_part<char> format_part;
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typedef StrictMock<mock_parts_collector> parts_mock;
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const auto format = fmt::internal::to_string_view("{:<}");
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parts_mock parts;
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const auto last_part = format_part(0u);
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EXPECT_CALL(parts, last()).WillOnce(Return(last_part));
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auto expected_substitution_part = last_part;
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expected_substitution_part.end_of_argument_id = 1;
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EXPECT_CALL(parts, substitute_last(expected_substitution_part));
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fmt::internal::format_preparation_handler<char, parts_mock> handler(format,
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parts);
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handler.on_replacement_field(format.data() + 1);
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}
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TEST(
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PrepareTest,
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FormatPreparationHandlerLastPartArgIndex_OnFormatSpecs_UpdatesLastAddedPart) {
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typedef fmt::format_part<char> format_part;
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typedef StrictMock<mock_parts_collector> parts_mock;
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parts_mock parts;
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||||
const auto specification_test_text = fmt::internal::to_string_view("{:<10}");
|
||||
const auto specification_offset = 2u;
|
||||
const auto specification_begin_it =
|
||||
specification_test_text.begin() + specification_offset;
|
||||
fmt::internal::format_preparation_handler<char, parts_mock> handler(
|
||||
specification_test_text, parts);
|
||||
|
||||
const auto last_part = format_part(0u);
|
||||
format_part::specification expected_specification(0u);
|
||||
fmt::internal::dynamic_format_specs<char> specs{};
|
||||
specs.align_ = fmt::alignment::ALIGN_LEFT;
|
||||
specs.width_ = 10;
|
||||
expected_specification.parsed_specs = specs;
|
||||
|
||||
auto expected_substitution_part = format_part(expected_specification);
|
||||
expected_substitution_part.end_of_argument_id = specification_offset;
|
||||
|
||||
EXPECT_CALL(parts, last()).WillOnce(Return(last_part));
|
||||
EXPECT_CALL(parts, substitute_last(expected_substitution_part));
|
||||
|
||||
handler.on_format_specs(specification_begin_it,
|
||||
specification_test_text.end());
|
||||
}
|
||||
|
||||
TEST(
|
||||
PrepareTest,
|
||||
FormatPreparationHandlerLastPartNamedArgIndex_OnFormatSpecs_UpdatesLastAddedPart) {
|
||||
typedef fmt::format_part<char> format_part;
|
||||
typedef StrictMock<mock_parts_collector> parts_mock;
|
||||
|
||||
parts_mock parts;
|
||||
const auto specification_test_text = fmt::internal::to_string_view("{:<10}");
|
||||
const auto specification_offset = 2u;
|
||||
const auto specification_begin_it =
|
||||
specification_test_text.begin() + specification_offset;
|
||||
fmt::internal::format_preparation_handler<char, parts_mock> handler(
|
||||
specification_test_text, parts);
|
||||
|
||||
const auto arg_id = fmt::internal::string_view_metadata(0, 42);
|
||||
const auto last_part = format_part(format_part::named_argument_id(arg_id));
|
||||
format_part::specification expected_specification(arg_id);
|
||||
fmt::internal::dynamic_format_specs<char> specs{};
|
||||
specs.align_ = fmt::alignment::ALIGN_LEFT;
|
||||
specs.width_ = 10;
|
||||
expected_specification.parsed_specs = specs;
|
||||
|
||||
auto expected_substitution_part = format_part(expected_specification);
|
||||
expected_substitution_part.end_of_argument_id = specification_offset;
|
||||
|
||||
EXPECT_CALL(parts, last()).WillOnce(Return(last_part));
|
||||
EXPECT_CALL(parts, substitute_last(expected_substitution_part));
|
||||
|
||||
handler.on_format_specs(specification_begin_it,
|
||||
specification_test_text.end());
|
||||
}
|
||||
|
||||
// compiletime_prepared_parts_type_provider is useful only with relaxed
|
||||
// constexpr.
|
||||
#if FMT_USE_CONSTEXPR
|
||||
template <unsigned EXPECTED_PARTS_COUNT, typename Format>
|
||||
void check_prepared_parts_type(Format format) {
|
||||
typedef fmt::internal::compiletime_prepared_parts_type_provider<decltype(
|
||||
format)>
|
||||
provider;
|
||||
typedef typename provider::template format_parts_array<EXPECTED_PARTS_COUNT>
|
||||
expected_parts_type;
|
||||
static_assert(
|
||||
std::is_same<typename provider::type, expected_parts_type>::value,
|
||||
"CompileTimePreparedPartsTypeProvider test failed");
|
||||
}
|
||||
|
||||
TEST(PrepareTest, CompileTimePreparedPartsTypeProvider) {
|
||||
check_prepared_parts_type<1u>(FMT_STRING("text"));
|
||||
check_prepared_parts_type<1u>(FMT_STRING("{}"));
|
||||
check_prepared_parts_type<2u>(FMT_STRING("text{}"));
|
||||
check_prepared_parts_type<2u>(FMT_STRING("{}text"));
|
||||
check_prepared_parts_type<3u>(FMT_STRING("text{}text"));
|
||||
check_prepared_parts_type<3u>(FMT_STRING("{:{}.{}} {:{}}"));
|
||||
|
||||
check_prepared_parts_type<3u>(FMT_STRING("{{{}}}")); // '{', 'argument', '}'
|
||||
check_prepared_parts_type<2u>(FMT_STRING("text{{")); // 'text', '{'
|
||||
check_prepared_parts_type<3u>(FMT_STRING("text{{ ")); // 'text', '{', ' '
|
||||
check_prepared_parts_type<2u>(FMT_STRING("}}text")); // '}', text
|
||||
check_prepared_parts_type<2u>(FMT_STRING("text}}text")); // 'text}', 'text'
|
||||
check_prepared_parts_type<4u>(
|
||||
FMT_STRING("text{{}}text")); // 'text', '{', '}', 'text'
|
||||
}
|
||||
#endif
|
||||
|
||||
// Use the struct instead of a function to workaround GCC 4.4's 'sorry,
|
||||
// unimplemented: mangling template_id_expr' issue.
|
||||
template <typename... Args> struct copied_prepared_format_creator {
|
||||
static decltype(fmt::prepare<Args...>(fmt::internal::declval<std::string>()))
|
||||
make(std::string format_str) {
|
||||
auto prepared_format = fmt::prepare<Args...>(std::move(format_str));
|
||||
auto copied_prepared_format = prepared_format;
|
||||
prepared_format = fmt::prepare<Args...>("");
|
||||
|
||||
return copied_prepared_format;
|
||||
}
|
||||
};
|
||||
|
||||
TEST(PrepareTest, CopyPreparedFormat_InternalStringViewsAreNotInvalidated) {
|
||||
auto prepared = copied_prepared_format_creator<int, std::string>::make(
|
||||
"before {} middle {} after");
|
||||
EXPECT_EQ("before 42 middle text after", prepared.format(42, "text"));
|
||||
|
||||
prepared = copied_prepared_format_creator<int, std::string>::make(
|
||||
"before {0} middle {1} after");
|
||||
EXPECT_EQ("before 42 middle text after", prepared.format(42, "text"));
|
||||
|
||||
{
|
||||
typedef decltype(fmt::arg("first", 42)) argument0;
|
||||
typedef decltype(fmt::arg("second", "text")) argument1;
|
||||
auto named_prepared =
|
||||
copied_prepared_format_creator<argument0, argument1>::make(
|
||||
"before {first} middle {second} after");
|
||||
EXPECT_EQ("before 42 middle text after",
|
||||
named_prepared.format(fmt::arg("first", 42),
|
||||
fmt::arg("second", "text")));
|
||||
}
|
||||
{
|
||||
typedef decltype(fmt::arg("value", "12345")) argument0;
|
||||
typedef decltype(fmt::arg("width", 10)) argument1;
|
||||
auto named_prepared =
|
||||
copied_prepared_format_creator<argument0, argument1>::make(
|
||||
">>>{value:>{width}}<<<");
|
||||
EXPECT_EQ(">>> 12345<<<",
|
||||
named_prepared.format(fmt::arg("value", "12345"),
|
||||
fmt::arg("width", 10)));
|
||||
}
|
||||
}
|
||||
|
||||
TEST(PepareTest, ReusedPreparedFormatType) {
|
||||
typedef fmt::prepared_format<std::string, int>::type prepared_format;
|
||||
|
||||
prepared_format prepared = fmt::prepare<prepared_format>("The {} is {}.");
|
||||
EXPECT_EQ("The answer is 42.", prepared.format("answer", 42));
|
||||
prepared = fmt::prepare<prepared_format>("40 {} 2 = {}");
|
||||
EXPECT_EQ("40 + 2 = 42", prepared.format("+", 42));
|
||||
}
|
||||
|
||||
TEST(PrepareTest, UserProvidedPartsContainerUnderlyingContainer) {
|
||||
typedef fmt::format_part<char> format_part;
|
||||
typedef fmt::parts_container<char, std::list<format_part>>::type
|
||||
parts_container;
|
||||
typedef fmt::basic_prepared_format<std::string, parts_container, std::string,
|
||||
int>::type prepared_format;
|
||||
|
||||
prepared_format prepared = fmt::prepare<prepared_format>("The {} is {}.");
|
||||
EXPECT_EQ("The answer is 42.", prepared.format("answer", 42));
|
||||
prepared = fmt::prepare<prepared_format>("40 {} 2 = {}");
|
||||
EXPECT_EQ("40 + 2 = 42", prepared.format("+", 42));
|
||||
}
|
||||
|
||||
class custom_parts_container {
|
||||
public:
|
||||
typedef fmt::format_part<char> format_part_type;
|
||||
|
||||
private:
|
||||
typedef std::deque<format_part_type> parts;
|
||||
|
||||
public:
|
||||
void add(format_part_type part) { parts_.push_back(std::move(part)); }
|
||||
|
||||
void substitute_last(format_part_type part) {
|
||||
parts_.back() = std::move(part);
|
||||
}
|
||||
|
||||
format_part_type last() { return parts_.back(); }
|
||||
|
||||
auto begin() -> decltype(fmt::internal::declval<parts>().begin()) {
|
||||
return parts_.begin();
|
||||
}
|
||||
|
||||
auto begin() const
|
||||
-> decltype(fmt::internal::declval<const parts>().begin()) {
|
||||
return parts_.begin();
|
||||
}
|
||||
|
||||
auto end() -> decltype(fmt::internal::declval<parts>().begin()) {
|
||||
return parts_.end();
|
||||
}
|
||||
|
||||
auto end() const -> decltype(fmt::internal::declval<const parts>().begin()) {
|
||||
return parts_.end();
|
||||
}
|
||||
|
||||
private:
|
||||
parts parts_;
|
||||
};
|
||||
|
||||
TEST(PrepareTest, UserProvidedPartsContainer) {
|
||||
typedef fmt::basic_prepared_format<std::string, custom_parts_container,
|
||||
std::string, int>::type prepared_format;
|
||||
|
||||
prepared_format prepared = fmt::prepare<prepared_format>("The {} is {}.");
|
||||
EXPECT_EQ("The answer is 42.", prepared.format("answer", 42));
|
||||
prepared = fmt::prepare<prepared_format>("40 {} 2 = {}");
|
||||
EXPECT_EQ("40 + 2 = 42", prepared.format("+", 42));
|
||||
}
|
||||
|
||||
TEST(PrepareTest, PassConstCharPointerFormat) {
|
||||
const char *c_format = "test {}";
|
||||
const auto prepared = fmt::prepare<int>(c_format);
|
||||
EXPECT_EQ("test 42", prepared.format(42));
|
||||
const wchar_t *wc_format = L"test {}";
|
||||
const auto wprepared = fmt::prepare<int>(wc_format);
|
||||
EXPECT_EQ(L"test 42", wprepared.format(42));
|
||||
}
|
||||
|
||||
TEST(PrepareTest, PassCharArrayFormat) {
|
||||
char c_format[] = "test {}";
|
||||
const auto prepared = fmt::prepare<int>(c_format);
|
||||
EXPECT_EQ("test 42", prepared.format(42));
|
||||
wchar_t wc_format[] = L"test {}";
|
||||
const auto wprepared = fmt::prepare<int>(wc_format);
|
||||
EXPECT_EQ(L"test 42", wprepared.format(42));
|
||||
}
|
||||
|
||||
TEST(PrepareTest, PassConstCharArrayFormat) {
|
||||
const char c_format[] = "test {}";
|
||||
const auto prepared = fmt::prepare<int>(c_format);
|
||||
EXPECT_EQ("test 42", prepared.format(42));
|
||||
const wchar_t wc_format[] = L"test {}";
|
||||
const auto wprepared = fmt::prepare<int>(wc_format);
|
||||
EXPECT_EQ(L"test 42", wprepared.format(42));
|
||||
}
|
||||
|
||||
TEST(PrepareTest, PassStringLiteralFormat) {
|
||||
const auto prepared = fmt::prepare<int>("test {}");
|
||||
EXPECT_EQ("test 42", prepared.format(42));
|
||||
const auto wprepared = fmt::prepare<int>(L"test {}");
|
||||
EXPECT_EQ(L"test 42", wprepared.format(42));
|
||||
}
|
||||
|
||||
TEST(PrepareTest, PassStringViewFormat) {
|
||||
const auto prepared =
|
||||
fmt::prepare<int>(fmt::basic_string_view<char>("test {}"));
|
||||
EXPECT_EQ("test 42", prepared.format(42));
|
||||
const auto wprepared =
|
||||
fmt::prepare<int>(fmt::basic_string_view<wchar_t>(L"test {}"));
|
||||
EXPECT_EQ(L"test 42", wprepared.format(42));
|
||||
}
|
||||
|
||||
TEST(PrepareTest, PassBasicStringFormat) {
|
||||
const auto prepared = fmt::prepare<int>(std::string("test {}"));
|
||||
EXPECT_EQ("test 42", prepared.format(42));
|
||||
const auto wprepared = fmt::prepare<int>(std::wstring(L"test {}"));
|
||||
EXPECT_EQ(L"test 42", wprepared.format(42));
|
||||
}
|
||||
|
||||
#if FMT_USE_CONSTEXPR
|
||||
TEST(PrepareTest, PassCompileString) {
|
||||
const auto prepared = fmt::prepare<int>(FMT_STRING("test {}"));
|
||||
EXPECT_EQ("test 42", prepared.format(42));
|
||||
const auto wprepared = fmt::prepare<int>(FMT_STRING(L"test {}"));
|
||||
EXPECT_EQ(L"test 42", wprepared.format(42));
|
||||
}
|
||||
#endif
|
||||
|
||||
template <typename T> struct user_allocator {
|
||||
typedef T value_type;
|
||||
typedef value_type *pointer;
|
||||
typedef const value_type *const_pointer;
|
||||
typedef value_type &reference;
|
||||
typedef const value_type &const_reference;
|
||||
typedef std::size_t size_type;
|
||||
typedef std::ptrdiff_t difference_type;
|
||||
|
||||
template <typename U> struct rebind { typedef user_allocator<U> other; };
|
||||
|
||||
user_allocator() = default;
|
||||
~user_allocator() = default;
|
||||
template <typename U> user_allocator(const user_allocator<U> &) {}
|
||||
|
||||
pointer allocate(size_type cnt,
|
||||
typename std::allocator<void>::const_pointer = 0) {
|
||||
return new value_type[cnt];
|
||||
}
|
||||
|
||||
void deallocate(pointer p, size_type cnt) { delete[] p; }
|
||||
|
||||
void construct(pointer p, const value_type &val) { new (p) value_type(val); }
|
||||
|
||||
void destroy(pointer p) { (*p).~value_type(); }
|
||||
|
||||
bool operator==(const user_allocator &other) const { return true; }
|
||||
bool operator!=(const user_allocator &other) const { return false; }
|
||||
};
|
||||
|
||||
TEST(PrepareTest, PassUserTypeFormat) {
|
||||
typedef std::basic_string<char, std::char_traits<char>, user_allocator<char>>
|
||||
user_format;
|
||||
const auto prepared = fmt::prepare<int>(user_format("test {}"));
|
||||
EXPECT_EQ("test 42", prepared.format(42));
|
||||
}
|
||||
Reference in New Issue
Block a user