ParserSnapshot Struct Reference

Opaque snapshot handle. More...

Data Fields
uint32_t	action_count
	Number of entries in yy_action.
ParserModule *uint64_t	create_time_ns
	< Owning module metadata, or NULL
void *	jit_ctx
	Reserved for a future JIT compilation context that can cache machine code generated from the action tables.
uint32_t	lookahead_count
	Number of entries in yy_lookahead.
uint8_t	merkle_root [32]
	Content hash of grammar data.
uint32_t	nrule
	Total number of rules.
uint32_t	nstate
	Total number of parser states.
uint32_t	nsymbol
	Total number of symbols.
uint32_t	nterminal
	Number of terminal symbols.
atomic_uint_fast32_t	refcount
	Atomic reference count.
struct rule *	rules
	Linked list of production rules.
struct state **	states
	Array of pointers to state structs.
struct symbol **	symbols
	Array of pointers to symbol structs.
uint64_t	version
	Monotonically increasing version number.
uint16_t *	yy_action
	Combined shift+reduce action array.
uint16_t *	yy_default
	Default action for each state.
uint16_t *	yy_lookahead
	Lookahead values parallel to yy_action.
int16_t *	yy_reduce_ofst
	Per-state offset into yy_action for reduces.
int16_t *	yy_shift_ofst
	Per-state offset into yy_action for shifts.

Detailed Description

Opaque snapshot handle.

See src/snapshot.h for the full definition.

Definition at line 117 of file snapshot.h.

Field Documentation

action_count

uint32_t ParserSnapshot::action_count

Number of entries in yy_action.

Definition at line 147 of file snapshot.h.

create_time_ns

ParserModule* uint64_t ParserSnapshot::create_time_ns

< Owning module metadata, or NULL

Nanosecond-precision wall-clock time when this snapshot was created.

Definition at line 156 of file snapshot.h.

jit_ctx

void* ParserSnapshot::jit_ctx

Reserved for a future JIT compilation context that can cache machine code generated from the action tables.

Definition at line 160 of file snapshot.h.

lookahead_count

uint32_t ParserSnapshot::lookahead_count

Number of entries in yy_lookahead.

Definition at line 148 of file snapshot.h.

merkle_root

uint8_t ParserSnapshot::merkle_root[32]

Content hash of grammar data.

Definition at line 152 of file snapshot.h.

nrule

uint32_t ParserSnapshot::nrule

Total number of rules.

Definition at line 135 of file snapshot.h.

nstate

uint32_t ParserSnapshot::nstate

Total number of parser states.

Definition at line 138 of file snapshot.h.

nsymbol

uint32_t ParserSnapshot::nsymbol

Total number of symbols.

Definition at line 131 of file snapshot.h.

nterminal

uint32_t ParserSnapshot::nterminal

Number of terminal symbols.

Definition at line 132 of file snapshot.h.

refcount

atomic_uint_fast32_t ParserSnapshot::refcount

Atomic reference count.

Starts at 1 on creation. Every call to snapshot_acquire() adds 1; every call to snapshot_release() subtracts

1. When the count drops to 0 the snapshot is destroyed.

Definition at line 126 of file snapshot.h.

rules

struct rule* ParserSnapshot::rules

Linked list of production rules.

Definition at line 134 of file snapshot.h.

states

struct state** ParserSnapshot::states

Array of pointers to state structs.

Definition at line 137 of file snapshot.h.

symbols

struct symbol** ParserSnapshot::symbols

Array of pointers to symbol structs.

Definition at line 130 of file snapshot.h.

version

uint64_t ParserSnapshot::version

Monotonically increasing version number.

Each new snapshot produced from a grammar modification gets a higher version than the last.

Definition at line 121 of file snapshot.h.

yy_action

uint16_t* ParserSnapshot::yy_action

Combined shift+reduce action array.

Definition at line 142 of file snapshot.h.

yy_default

uint16_t* ParserSnapshot::yy_default

Default action for each state.

Definition at line 146 of file snapshot.h.

yy_lookahead

uint16_t* ParserSnapshot::yy_lookahead

Lookahead values parallel to yy_action.

Definition at line 143 of file snapshot.h.

yy_reduce_ofst

int16_t* ParserSnapshot::yy_reduce_ofst

Per-state offset into yy_action for reduces.

Definition at line 145 of file snapshot.h.

yy_shift_ofst

int16_t* ParserSnapshot::yy_shift_ofst

Per-state offset into yy_action for shifts.

Definition at line 144 of file snapshot.h.

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The documentation for this struct was generated from the following file:

• src/snapshot.h