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feat: beta compiling to fasm (codegen) + hello world example let's goooo

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This commit is contained in:
Amir Adal
2025-11-30 22:04:35 +01:00
parent 22f745e8dc
commit 16cc06b788
14 changed files with 1141 additions and 135 deletions
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29
include/lexer.hpp
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@ -51,7 +51,7 @@ struct Token
TokenType token;
long int_number;
// null-terminated
char* string;
StringView string;
long line_number;
long offset_start;
long offset_end;
@ -90,15 +90,10 @@ public:
: m_filename(filename), m_code(code) {}
Lexer(const Lexer&) = delete;
Lexer(Lexer&& other)
{
m_code = other.m_code;
other.m_code = StringView();
}
public:
bool NextToken()
{
if (m_pos >= m_code.size)
if (m_pos >= m_code.size || m_code.data[m_pos] == '\0')
{
m_token = Token(TokenType::Eof);
return false;
@ -119,27 +114,27 @@ public:
{
StringBuilder s;
long offset_start = m_pos - m_last_newline;
s.PushChar(c);
s.Push(c);
// id
while (std::isalpha(m_code.data[m_pos]) != 0)
{
s.PushChar(m_code.data[m_pos++]);
s.Push(m_code.data[m_pos++]);
}
s.PushChar('\0');
s.Push('\0');
m_token = Token(TokenType::Id, m_line, offset_start, m_pos - m_last_newline);
m_token.string = s.data;
m_token.string = s.view();
if (strcmp("extern", m_token.string) == 0)
if (strcmp("extern", m_token.string.c_str()) == 0)
{
m_token.token = TokenType::Extern;
}
if (strcmp("fn", m_token.string) == 0)
if (strcmp("fn", m_token.string.c_str()) == 0)
{
m_token.token = TokenType::Fn;
}
if (strcmp("local", m_token.string) == 0)
if (strcmp("local", m_token.string.c_str()) == 0)
{
m_token.token = TokenType::Local;
}
@ -152,13 +147,13 @@ public:
StringBuilder s;
long offset_start = m_pos - m_last_newline;
bool hex = c == '0' && m_code.data[m_pos] == 'x';
s.PushChar(c);
s.Push(c);
// integer (could be hex)
while (std::isdigit(m_code.data[m_pos]) != 0 || (hex && std::isalpha(m_code.data[m_pos]) != 0))
{
s.PushChar(m_code.data[m_pos++]);
s.Push(m_code.data[m_pos++]);
}
s.PushChar('\0');
s.Push('\0');
m_token = Token(TokenType::IntLiteral, m_line, offset_start, m_pos - m_last_newline);
m_token.int_number = std::strtol(s.data, nullptr, hex ? 16 : 10);
m_token.string = s.data;