tracy/server/TracySourceTokenizer.cpp
2021-03-26 02:42:14 +01:00

316 lines
11 KiB
C++

#include "tracy_robin_hood.h"
#include "TracyCharUtil.hpp"
#include "TracySourceTokenizer.hpp"
namespace tracy
{
namespace {
static unordered_flat_set<const char*, charutil::Hasher, charutil::Comparator> GetKeywords()
{
unordered_flat_set<const char*, charutil::Hasher, charutil::Comparator> ret;
for( auto& v : {
"alignas", "alignof", "and", "and_eq", "asm", "atomic_cancel", "atomic_commit", "atomic_noexcept",
"bitand", "bitor", "break", "case", "catch", "class", "compl", "concept", "const", "consteval",
"constexpr", "constinit", "const_cast", "continue", "co_await", "co_return", "co_yield", "decltype",
"default", "delete", "do", "dynamic_cast", "else", "enum", "explicit", "export", "extern", "for",
"friend", "if", "inline", "mutable", "namespace", "new", "noexcept", "not", "not_eq", "operator",
"or", "or_eq", "private", "protected", "public", "reflexpr", "register", "reinterpret_cast",
"return", "requires", "sizeof", "static", "static_assert", "static_cast", "struct", "switch",
"synchronized", "template", "thread_local", "throw", "try", "typedef", "typeid", "typename",
"union", "using", "virtual", "volatile", "while", "xor", "xor_eq", "override", "final", "import",
"module", "transaction_safe", "transaction_safe_dynamic" } )
{
ret.insert( v );
}
return ret;
}
static unordered_flat_set<const char*, charutil::Hasher, charutil::Comparator> GetTypes()
{
unordered_flat_set<const char*, charutil::Hasher, charutil::Comparator> ret;
for( auto& v : {
"bool", "char", "char8_t", "char16_t", "char32_t", "double", "float", "int", "long", "short", "signed",
"unsigned", "void", "wchar_t", "size_t", "int8_t", "int16_t", "int32_t", "int64_t", "int_fast8_t",
"int_fast16_t", "int_fast32_t", "int_fast64_t", "int_least8_t", "int_least16_t", "int_least32_t",
"int_least64_t", "intmax_t", "intptr_t", "uint8_t", "uint16_t", "uint32_t", "uint64_t", "uint_fast8_t",
"uint_fast16_t", "uint_fast32_t", "uint_fast64_t", "uint_least8_t", "uint_least16_t", "uint_least32_t",
"uint_least64_t", "uintmax_t", "uintptr_t", "type_info", "bad_typeid", "bad_cast", "type_index",
"clock_t", "time_t", "tm", "timespec", "ptrdiff_t", "nullptr_t", "max_align_t", "auto",
"__m64", "__m128", "__m128i", "__m128d", "__m256", "__m256i", "__m256d", "__m512", "__m512i",
"__m512d", "__mmask8", "__mmask16", "__mmask32", "__mmask64",
"int8x8_t", "int16x4_t", "int32x2_t", "int64x1_t", "uint8x8_t", "uint16x4_t", "uint32x2_t",
"uint64x1_t", "float32x2_t", "poly8x8_t", "poly16x4_t", "int8x16_t", "int16x8_t", "int32x4_t",
"int64x2_t", "uint8x16_t", "uint16x8_t", "uint32x4_t", "uint64x2_t", "float32x4_t", "poly8x16_t",
"poly16x8_t",
"int8x8x2_t", "int16x4x2_t", "int32x2x2_t", "int64x1x2_t", "uint8x8x2_t", "uint16x4x2_t",
"uint32x2x2_t", "uint64x1x2_t", "float32x2x2_t", "poly8x8x2_t", "poly16x4x2_t", "int8x16x2_t",
"int16x8x2_t", "int32x4x2_t", "int64x2x2_t", "uint8x16x2_t", "uint16x8x2_t", "uint32x4x2_t",
"uint64x2x2_t", "float32x4x2_t", "poly8x16x2_t", "poly16x8x2_t",
"int8x8x3_t", "int16x4x3_t", "int32x2x3_t", "int64x1x3_t", "uint8x8x3_t", "uint16x4x3_t",
"uint32x2x3_t", "uint64x1x3_t", "float32x2x3_t", "poly8x8x3_t", "poly16x4x3_t", "int8x16x3_t",
"int16x8x3_t", "int32x4x3_t", "int64x2x3_t", "uint8x16x3_t", "uint16x8x3_t", "uint32x4x3_t",
"uint64x2x3_t", "float32x4x3_t", "poly8x16x3_t", "poly16x8x3_t",
"int8x8x4_t", "int16x4x4_t", "int32x2x4_t", "int64x1x4_t", "uint8x8x4_t", "uint16x4x4_t",
"uint32x2x4_t", "uint64x1x4_t", "float32x2x4_t", "poly8x8x4_t", "poly16x4x4_t", "int8x16x4_t",
"int16x8x4_t", "int32x4x4_t", "int64x2x4_t", "uint8x16x4_t", "uint16x8x4_t", "uint32x4x4_t",
"uint64x2x4_t", "float32x4x4_t", "poly8x16x4_t", "poly16x8x4_t" } )
{
ret.insert( v );
}
return ret;
}
static unordered_flat_set<const char*, charutil::Hasher, charutil::Comparator> GetSpecial()
{
unordered_flat_set<const char*, charutil::Hasher, charutil::Comparator> ret;
for( auto& v : { "this", "nullptr", "true", "false", "goto", "NULL" } )
{
ret.insert( v );
}
return ret;
}
}
Tokenizer::Tokenizer()
: m_isInComment( false )
, m_isInPreprocessor( false )
{
}
std::vector<Tokenizer::Token> Tokenizer::Tokenize( const char* begin, const char* end )
{
std::vector<Token> ret;
if( m_isInPreprocessor )
{
if( begin == end )
{
m_isInPreprocessor = false;
return ret;
}
if( *(end-1) != '\\' ) m_isInPreprocessor = false;
ret.emplace_back( Token { begin, end, TokenColor::Preprocessor } );
return ret;
}
const bool first = !m_isInComment;
while( begin != end )
{
if( m_isInComment )
{
const auto pos = begin;
for(;;)
{
while( begin != end && *begin != '*' ) begin++;
begin++;
if( begin < end )
{
if( *begin == '/' )
{
begin++;
ret.emplace_back( Token { pos, begin, TokenColor::Comment } );
m_isInComment = false;
break;
}
}
else
{
ret.emplace_back( Token { pos, end, TokenColor::Comment } );
return ret;
}
}
}
else
{
while( begin != end && isspace( *begin ) ) begin++;
if( first && begin < end && *begin == '#' )
{
if( *(end-1) == '\\' ) m_isInPreprocessor = true;
ret.emplace_back( Token { begin, end, TokenColor::Preprocessor } );
return ret;
}
const auto pos = begin;
const auto col = IdentifyToken( begin, end );
ret.emplace_back( Token { pos, begin, col } );
}
}
return ret;
}
static bool TokenizeNumber( const char*& begin, const char* end )
{
const bool startNum = *begin >= '0' && *begin <= '9';
if( *begin != '+' && *begin != '-' && !startNum ) return false;
begin++;
bool hasNum = startNum;
while( begin < end && ( ( *begin >= '0' && *begin <= '9' ) || *begin == '\'' ) )
{
hasNum = true;
begin++;
}
if( !hasNum ) return false;
bool isFloat = false, isBinary = false;
if( begin < end )
{
if( *begin == '.' )
{
isFloat = true;
begin++;
while( begin < end && ( ( *begin >= '0' && *begin <= '9' ) || *begin == '\'' ) ) begin++;
}
else if( *begin == 'x' || *begin == 'X' )
{
// hexadecimal
begin++;
while( begin < end && ( ( *begin >= '0' && *begin <= '9' ) || ( *begin >= 'a' && *begin <= 'f' ) || ( *begin >= 'A' && *begin <= 'F' ) || *begin == '\'' ) ) begin++;
}
else if( *begin == 'b' || *begin == 'B' )
{
isBinary = true;
begin++;
while( begin < end && ( ( *begin == '0' || *begin == '1' ) || *begin == '\'' ) ) begin++;
}
}
if( !isBinary )
{
if( begin < end && ( *begin == 'e' || *begin == 'E' || *begin == 'p' || *begin == 'P' ) )
{
isFloat = true;
begin++;
if( begin < end && ( *begin == '+' || *begin == '-' ) ) begin++;
bool hasDigits = false;
while( begin < end && ( ( *begin >= '0' && *begin <= '9' ) || ( *begin >= 'a' && *begin <= 'f' ) || ( *begin >= 'A' && *begin <= 'F' ) || *begin == '\'' ) )
{
hasDigits = true;
begin++;
}
if( !hasDigits ) return false;
}
if( begin < end && ( *begin == 'f' || *begin == 'F' || *begin == 'l' || *begin == 'L' ) ) begin++;
}
if( !isFloat )
{
while( begin < end && ( *begin == 'u' || *begin == 'U' || *begin == 'l' || *begin == 'L' ) ) begin++;
}
return true;
}
Tokenizer::TokenColor Tokenizer::IdentifyToken( const char*& begin, const char* end )
{
static const auto s_keywords = GetKeywords();
static const auto s_types = GetTypes();
static const auto s_special = GetSpecial();
if( *begin == '"' )
{
begin++;
while( begin < end )
{
if( *begin == '"' )
{
begin++;
break;
}
begin += 1 + ( *begin == '\\' && end - begin > 1 && *(begin+1) == '"' );
}
return TokenColor::String;
}
if( *begin == '\'' )
{
begin++;
if( begin < end && *begin == '\\' ) begin++;
if( begin < end ) begin++;
if( begin < end && *begin == '\'' ) begin++;
return TokenColor::CharacterLiteral;
}
if( ( *begin >= 'a' && *begin <= 'z' ) || ( *begin >= 'A' && *begin <= 'Z' ) || *begin == '_' )
{
const char* tmp = begin;
begin++;
while( begin < end && ( ( *begin >= 'a' && *begin <= 'z' ) || ( *begin >= 'A' && *begin <= 'Z' ) || ( *begin >= '0' && *begin <= '9' ) || *begin == '_' ) ) begin++;
if( begin - tmp <= 24 )
{
char buf[25];
memcpy( buf, tmp, begin-tmp );
buf[begin-tmp] = '\0';
if( s_keywords.find( buf ) != s_keywords.end() ) return TokenColor::Keyword;
if( s_types.find( buf ) != s_types.end() ) return TokenColor::Type;
if( s_special.find( buf ) != s_special.end() ) return TokenColor::Special;
}
return TokenColor::Default;
}
const char* tmp = begin;
if( TokenizeNumber( begin, end ) ) return TokenColor::Number;
begin = tmp;
if( *begin == '/' && end - begin > 1 )
{
if( *(begin+1) == '/' )
{
begin = end;
return TokenColor::Comment;
}
if( *(begin+1) == '*' )
{
begin += 2;
for(;;)
{
while( begin < end && *begin != '*' ) begin++;
if( begin == end )
{
m_isInComment = true;
return TokenColor::Comment;
}
begin++;
if( begin < end && *begin == '/' )
{
begin++;
return TokenColor::Comment;
}
}
}
}
while( begin < end )
{
switch( *begin )
{
case '[':
case ']':
case '{':
case '}':
case '!':
case '%':
case '^':
case '&':
case '*':
case '(':
case ')':
case '-':
case '+':
case '=':
case '~':
case '|':
case '<':
case '>':
case '?':
case ':':
case '/':
case ';':
case ',':
case '.':
begin++;
break;
default:
goto out;
}
}
out:
if( begin != tmp ) return TokenColor::Punctuation;
begin = end;
return TokenColor::Default;
}
}