41 explicit Lexer(const char* string) : m_next(string) { }
42 bool read(Token& token);
43 static void unitTest();
44 private:
45 const char* m_next;
46 static Token::Kind unitTest(const char* string);
47 };
48
49 #endif
2024-01-05 12:04
BullseyeCoverage 9.6.4
expr/ Lexer.h
1 // Expression evaluator lexer interface
2
3 #ifndef Token_h
4 #define Token_h 1
5
6 #include <cstdint>
7
8 struct Token {
9 enum class Kind {
10 endOfInput,
11 bitwiseAnd,
12 bitwiseNot,
13 bitwiseOr,
14 bitwiseXor,
15 divide,
16 equal,
17 greaterThan,
18 greaterThanEq,
19 lessThan,
20 lessThanEq,
21 logicalAnd,
22 logicalNot,
23 logicalOr,
24 notEqual,
25 number,
26 minus,
27 modulus,
28 multiply,
29 parenLeft,
30 parenRight,
31 plus,
32 shiftLeft,
33 shiftRight,
34 };
35 Kind kind = Kind::endOfInput;
36 int64_t value = 0;
37 };
38
39 class Lexer {
40 public:
41 explicit Lexer(const char* string) : m_next(string) { }
42 bool read(Token& token);
43 static void unitTest();
44 private:
45 const char* m_next;
46 static Token::Kind unitTest(const char* string);
47 };
48
49 #endif