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Util: Add format specifier logic to container types

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Riyyi
2022-08-08 21:44:24 +02:00
parent 5cf8d18742
commit 14e57acfd8
1 changed files with 68 additions and 30 deletions
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src/util/format/formatter.h
+68 -30
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@@ -8,7 +8,7 @@
#include <cassert>
#include <cstddef> // size_t
#include <cstdint> // int8_t, int32_t, int64_t, uint8_t, uint32_t, uintptr_t
#include <cstdint> // int8_t, uint8_t, uintptr_t
#include <map>
#include <string>
#include <string_view>
@@ -66,7 +66,7 @@ template<typename T>
struct Formatter {
Specifier specifier;
constexpr void parse(Parser& parser)
void parse(Parser& parser)
{
if constexpr (std::is_same_v<T, char>) {
parser.parseSpecifier(specifier, Parser::ParameterType::Char);
@@ -197,7 +197,7 @@ struct Formatter<char[N]> : Formatter<const char*> {
template<typename T>
struct Formatter<T*> : Formatter<uintptr_t> {
constexpr void parse(Parser& parser)
void parse(Parser& parser)
{
parser.parseSpecifier(specifier, Parser::ParameterType::Pointer);
specifier.alternativeForm = true;
@@ -219,47 +219,85 @@ struct Formatter<std::nullptr_t> : Formatter<const void*> {
template<typename T>
struct Formatter<std::vector<T>> : Formatter<T> {
Specifier specifier;
void parse(Parser& parser)
{
parser.parseSpecifier(specifier, Parser::ParameterType::Container);
}
void format(Builder& builder, const std::vector<T>& value) const
{
builder.putString("{\n");
std::string indent = std::string(specifier.width, specifier.fill);
builder.putCharacter('{');
if (specifier.alternativeForm) {
builder.putCharacter('\n');
}
for (auto it = value.cbegin(); it != value.cend(); ++it) {
builder.putString(" ");
builder.putString(indent);
Formatter<T>::format(builder, *it);
// Add comma, except after the last element
if (it != std::prev(value.end(), 1)) {
builder.putCharacter(',');
}
builder.putCharacter('\n');
else if (!specifier.alternativeForm) {
builder.putString(indent);
}
if (specifier.alternativeForm) {
builder.putCharacter('\n');
}
}
builder.putCharacter('}');
}
};
#define UTIL_FORMAT_FORMAT_AS_MAP(type) \
template<typename K, typename V> \
struct Formatter<type<K, V>> \
: Formatter<K> \
, Formatter<V> { \
void format(Builder& builder, const type<K, V>& value) const \
{ \
builder.putString("{\n"); \
auto last = value.end(); \
for (auto it = value.begin(); it != last; ++it) { \
builder.putString(R"( ")"); \
Formatter<K>::format(builder, it->first); \
builder.putString(R"(": )"); \
Formatter<V>::format(builder, it->second); \
\
/* Add comma, except after the last element */ \
if (std::next(it) != last) { \
builder.putCharacter(','); \
} \
\
builder.putCharacter('\n'); \
} \
builder.putCharacter('}'); \
} \
#define UTIL_FORMAT_FORMAT_AS_MAP(type) \
template<typename K, typename V> \
struct Formatter<type<K, V>> \
: Formatter<K> \
, Formatter<V> { \
Specifier specifier; \
\
void parse(Parser& parser) \
{ \
parser.parseSpecifier(specifier, Parser::ParameterType::Container); \
} \
\
void format(Builder& builder, const type<K, V>& value) const \
{ \
std::string indent = std::string(specifier.width, specifier.fill); \
\
builder.putCharacter('{'); \
if (specifier.alternativeForm) { \
builder.putCharacter('\n'); \
} \
auto last = value.end(); \
for (auto it = value.begin(); it != last; ++it) { \
builder.putString(indent); \
builder.putCharacter('"'); \
Formatter<K>::format(builder, it->first); \
builder.putCharacter('"'); \
builder.putString((specifier.width > 0) ? ": " : ":"); \
Formatter<V>::format(builder, it->second); \
\
/* Add comma, except after the last element */ \
if (std::next(it) != last) { \
builder.putCharacter(','); \
} \
else if (!specifier.alternativeForm) { \
builder.putString(indent); \
} \
\
if (specifier.alternativeForm) { \
builder.putCharacter('\n'); \
} \
} \
builder.putCharacter('}'); \
} \
}
UTIL_FORMAT_FORMAT_AS_MAP(std::map);