MySQL 8.4.3
Source Code Documentation
sql_lexer_parser_state.h
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25
26#ifndef ROUTING_SQL_LEXER_PARSER_STATE_INCLUDED
27#define ROUTING_SQL_LEXER_PARSER_STATE_INCLUDED
28
29#include <cstdlib>
30
34
35class THD;
36
37/**
38 Internal state of the parser.
39 The complete state consist of:
40 - input parameters that control the parser behavior
41 - state data used during lexical parsing,
42 - state data used during syntactic parsing.
43*/
45 protected:
46 /**
47 Constructor for special parsers of partial SQL clauses (DD)
48
49 @param grammar_selector_token See Lex_input_stream::grammar_selector_token
50 */
51 explicit Parser_state(int grammar_selector_token)
52 : m_input(), m_lip(grammar_selector_token), m_yacc(), m_comment(false) {}
53
54 public:
55 Parser_state() : m_input(), m_lip(~0U), m_yacc(), m_comment(false) {}
56
57 /**
58 Object initializer. Must be called before usage.
59
60 @retval false OK
61 @retval true Error
62 */
63 bool init(THD *thd, const char *buff, size_t length) {
64 return m_lip.init(thd, buff, length);
65 }
66
67 void reset(const char *found_semicolon, size_t length) {
68 m_lip.reset(found_semicolon, length);
69 m_yacc.reset();
70 }
71
72 /// Signal that the current query has a comment
73 void add_comment() { m_comment = true; }
74 /// Check whether the current query has a comment
75 bool has_comment() const { return m_comment; }
76
77 public:
81#if 0
82 /**
83 Current performance digest instrumentation.
84 */
86#endif
87 private:
88 bool m_comment; ///< True if current query contains comments
89};
90
91#endif
This class represents the character input stream consumed during lexical analysis.
Definition: sql_lexer_input_stream.h:70
bool init(THD *thd, const char *buff, size_t length)
Object initializer.
Definition: sql_lexer.cc:74
void reset(const char *buff, size_t length)
Prepare Lex_input_stream instance state for use for handling next SQL statement.
Definition: sql_lexer.cc:102
Internal state of the parser.
Definition: sql_lexer_parser_state.h:44
Lex_input_stream m_lip
Definition: sql_lexer_parser_state.h:79
void add_comment()
Signal that the current query has a comment.
Definition: sql_lexer_parser_state.h:73
void reset(const char *found_semicolon, size_t length)
Definition: sql_lexer_parser_state.h:67
Yacc_state m_yacc
Definition: sql_lexer_parser_state.h:80
Parser_state()
Definition: sql_lexer_parser_state.h:55
Parser_input m_input
Definition: sql_lexer_parser_state.h:78
Parser_state(int grammar_selector_token)
Constructor for special parsers of partial SQL clauses (DD)
Definition: sql_lexer_parser_state.h:51
bool has_comment() const
Check whether the current query has a comment.
Definition: sql_lexer_parser_state.h:75
bool m_comment
True if current query contains comments.
Definition: sql_lexer_parser_state.h:88
bool init(THD *thd, const char *buff, size_t length)
Object initializer.
Definition: sql_lexer_parser_state.h:63
PSI_digest_locker * m_digest_psi
Current performance digest instrumentation.
Definition: sql_lex.h:4806
For each client connection we create a separate thread with THD serving as a thread/connection descri...
Definition: sql_lexer_thd.h:36
The internal state of the syntax parser.
Definition: sql_lexer_yacc_state.h:246
void reset()
Definition: sql_lexer_yacc_state.h:252
struct PSI_digest_locker PSI_digest_locker
Definition: psi_statement_bits.h:112
bool length(const dd::Spatial_reference_system *srs, const Geometry *g1, double *length, bool *null) noexcept
Computes the length of linestrings and multilinestrings.
Definition: length.cc:76
Input parameters to the parser.
Definition: sql_lexer_parser_input.h:32
Definition: dtoa.cc:588