mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-04-25 14:05:15 +00:00
6f4c380d95
Using int was a mistake. This patch changes String, StringImpl, StringView and StringBuilder to use size_t instead of int for lengths. Obviously a lot of code needs to change as a result of this.
70 lines
1.5 KiB
C++
70 lines
1.5 KiB
C++
#pragma once
|
|
|
|
#include <AK/StringView.h>
|
|
#include <AK/Vector.h>
|
|
|
|
#define FOR_EACH_TOKEN_TYPE \
|
|
__TOKEN(Unknown) \
|
|
__TOKEN(Whitespace) \
|
|
__TOKEN(PreprocessorStatement) \
|
|
__TOKEN(LeftParen) \
|
|
__TOKEN(RightParen) \
|
|
__TOKEN(LeftCurly) \
|
|
__TOKEN(RightCurly) \
|
|
__TOKEN(LeftBracket) \
|
|
__TOKEN(RightBracket) \
|
|
__TOKEN(Comma) \
|
|
__TOKEN(Asterisk) \
|
|
__TOKEN(Semicolon) \
|
|
__TOKEN(DoubleQuotedString) \
|
|
__TOKEN(SingleQuotedString) \
|
|
__TOKEN(Comment) \
|
|
__TOKEN(Number) \
|
|
__TOKEN(Keyword) \
|
|
__TOKEN(KnownType) \
|
|
__TOKEN(Identifier)
|
|
|
|
struct CppPosition {
|
|
size_t line;
|
|
size_t column;
|
|
};
|
|
|
|
struct CppToken {
|
|
enum class Type {
|
|
#define __TOKEN(x) x,
|
|
FOR_EACH_TOKEN_TYPE
|
|
#undef __TOKEN
|
|
};
|
|
|
|
const char* to_string() const
|
|
{
|
|
switch (m_type) {
|
|
#define __TOKEN(x) \
|
|
case Type::x: \
|
|
return #x;
|
|
FOR_EACH_TOKEN_TYPE
|
|
#undef __TOKEN
|
|
}
|
|
ASSERT_NOT_REACHED();
|
|
}
|
|
|
|
Type m_type { Type::Unknown };
|
|
CppPosition m_start;
|
|
CppPosition m_end;
|
|
};
|
|
|
|
class CppLexer {
|
|
public:
|
|
CppLexer(const StringView&);
|
|
|
|
Vector<CppToken> lex();
|
|
|
|
private:
|
|
char peek(size_t offset = 0) const;
|
|
char consume();
|
|
|
|
StringView m_input;
|
|
size_t m_index { 0 };
|
|
CppPosition m_previous_position { 0, 0 };
|
|
CppPosition m_position { 0, 0 };
|
|
};
|