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Avoid pushing duplicate start states in query analysis

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This commit is contained in:
Max Brunsfeld 2020-08-20 10:07:22 -07:00
parent aac75e35b1
commit d47346abc0
1 changed files with 5 additions and 1 deletions
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6
lib/src/query.c
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@ -599,7 +599,7 @@ static inline int analysis_state__compare(
if (self->stack[i].parse_state > other->stack[i].parse_state) return 1;
if (self->stack[i].field_id < other->stack[i].field_id) return -1;
if (self->stack[i].field_id > other->stack[i].field_id) return 1;
}
}
if (self->step_index < other->step_index) return -1;
if (self->step_index > other->step_index) return 1;
return 0;
@ -814,6 +814,10 @@ static bool ts_query__analyze_patterns(TSQuery *self, unsigned *impossible_index
);
if (exists) {
AnalysisSubgraph *subgraph = &subgraphs.contents[subgraph_index];
if (
subgraph->start_states.size == 0 ||
*array_back(&subgraph->start_states) != state
)
array_push(&subgraph->start_states, state);
}
}