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#include "asl/format.hpp"
#include "asl/utility.hpp"
#include "asl/assert.hpp"
void asl::format_internals::format(
writer* writer,
const char* fmt,
const type_erased_arg* args,
int64_t arg_count)
{
formatter f(writer);
int64_t arg = 0;
const char* begin = fmt;
while (*fmt != '\0')
{
if (fmt[0] == '{')
{
if (fmt[1] == '}')
{
if (arg < arg_count)
{
f.write(begin, fmt - begin);
fmt += 2;
begin = fmt;
args[arg].fn(f, args[arg].data);
arg += 1;
}
else
{
f.write(begin, fmt - begin);
fmt += 2;
begin = fmt;
f.write("<ERROR>", 7);
}
}
else if (fmt[1] == '{')
{
fmt += 1;
f.write(begin, fmt - begin);
fmt += 1;
begin = fmt;
}
else
{
f.write(begin, fmt - begin);
fmt += 1;
begin = fmt;
f.write("<ERROR>", 7);
}
}
else if (fmt[0] == '}' && fmt[1] == '}')
{
fmt += 1;
f.write(begin, fmt - begin);
fmt += 1;
begin = fmt;
}
else
{
fmt += 1;
}
}
f.write(begin, fmt - begin);
}
void asl::AslFormat(formatter& f, float)
{
f.write("<FLOAT>", 7); // @Todo Float formatting
}
void asl::AslFormat(formatter& f, double)
{
f.write("<DOUBLE>", 8); // @Todo Float formatting
}
void asl::AslFormat(formatter& f, uint8_t v)
{
AslFormat(f, static_cast<uint64_t>(v));
}
void asl::AslFormat(formatter& f, uint16_t v)
{
AslFormat(f, static_cast<uint64_t>(v));
}
void asl::AslFormat(formatter& f, uint32_t v)
{
AslFormat(f, static_cast<uint64_t>(v));
}
void asl::AslFormat(formatter& f, uint64_t v)
{
static constexpr char pairs[] = {
'0', '0', '0', '1', '0', '2', '0', '3', '0', '4',
'0', '5', '0', '6', '0', '7', '0', '8', '0', '9',
'1', '0', '1', '1', '1', '2', '1', '3', '1', '4',
'1', '5', '1', '6', '1', '7', '1', '8', '1', '9',
'2', '0', '2', '1', '2', '2', '2', '3', '2', '4',
'2', '5', '2', '6', '2', '7', '2', '8', '2', '9',
'3', '0', '3', '1', '3', '2', '3', '3', '3', '4',
'3', '5', '3', '6', '3', '7', '3', '8', '3', '9',
'4', '0', '4', '1', '4', '2', '4', '3', '4', '4',
'4', '5', '4', '6', '4', '7', '4', '8', '4', '9',
'5', '0', '5', '1', '5', '2', '5', '3', '5', '4',
'5', '5', '5', '6', '5', '7', '5', '8', '5', '9',
'6', '0', '6', '1', '6', '2', '6', '3', '6', '4',
'6', '5', '6', '6', '6', '7', '6', '8', '6', '9',
'7', '0', '7', '1', '7', '2', '7', '3', '7', '4',
'7', '5', '7', '6', '7', '7', '7', '8', '7', '9',
'8', '0', '8', '1', '8', '2', '8', '3', '8', '4',
'8', '5', '8', '6', '8', '7', '8', '8', '8', '9',
'9', '0', '9', '1', '9', '2', '9', '3', '9', '4',
'9', '5', '9', '6', '9', '7', '9', '8', '9', '9',
};
static constexpr int32_t kMaxDigits = 20;
char buffer[kMaxDigits];
int32_t cursor = kMaxDigits;
auto write_two = [&buffer, &cursor](const char* str)
{
ASL_ASSERT(cursor >= 2);
buffer[--cursor] = str[1];
buffer[--cursor] = str[0];
};
auto write_one = [&buffer, &cursor](char c)
{
ASL_ASSERT(cursor >= 1);
buffer[--cursor] = c;
};
while (v >= 100)
{
uint64_t x = v % 100;
v /= 100;
write_two(pairs + x * 2);
}
if (v >= 10)
{
write_two(pairs + v * 2);
}
else if (v > 0 || cursor == kMaxDigits)
{
ASL_ASSERT(v < 10);
write_one('0' + (char)v);
}
f.write(buffer + cursor, kMaxDigits - cursor);
}
void asl::AslFormat(formatter& f, int8_t v)
{
AslFormat(f, static_cast<int64_t>(v));
}
void asl::AslFormat(formatter& f, int16_t v)
{
AslFormat(f, static_cast<int64_t>(v));
}
void asl::AslFormat(formatter& f, int32_t v)
{
AslFormat(f, static_cast<int64_t>(v));
}
void asl::AslFormat(formatter& f, int64_t v)
{
if (v < 0)
{
f.write("-", 1);
uint64_t absolute_value = ~(bit_cast<uint64_t>(v) - 1);
AslFormat(f, absolute_value);
}
else
{
AslFormat(f, static_cast<uint64_t>(v));
}
}
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