traxys/tree-sitter
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Identify fragile reductions at compile time

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This commit is contained in:
Max Brunsfeld 2015-02-21 10:41:23 -08:00
parent a92067702d
commit 2d436cf141
13 changed files with 4843 additions and 4790 deletions
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9
src/compiler/parse_table.h
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@ -24,7 +24,7 @@ typedef enum {
class ParseAction {
ParseAction(ParseActionType type, ParseStateId state_index,
rules::Symbol symbol, size_t consumed_symbol_count,
std::set<int> precedence_values);
std::set<int> precedence_values, int production_id);
public:
ParseAction();
@ -33,7 +33,7 @@ class ParseAction {
static ParseAction Shift(ParseStateId state_index,
std::set<int> precedence_values);
static ParseAction Reduce(rules::Symbol symbol, size_t consumed_symbol_count,
int precedence);
int precedence, int production_id);
static ParseAction ShiftExtra();
static ParseAction ReduceExtra(rules::Symbol symbol);
bool operator==(const ParseAction &action) const;
@ -43,6 +43,7 @@ class ParseAction {
ParseStateId state_index;
size_t consumed_symbol_count;
std::set<int> precedence_values;
int production_id;
};
std::ostream &operator<<(std::ostream &stream, const ParseAction &item);
@ -57,7 +58,8 @@ struct hash<tree_sitter::ParseAction> {
return (hash<int>()(action.type) ^
hash<tree_sitter::rules::Symbol>()(action.symbol) ^
hash<size_t>()(action.state_index) ^
hash<size_t>()(action.consumed_symbol_count));
hash<size_t>()(action.consumed_symbol_count) ^
hash<size_t>()(action.production_id));
}
};
@ -83,6 +85,7 @@ class ParseTable {
std::vector<ParseState> states;
std::set<rules::Symbol> symbols;
std::set<int> fragile_production_ids;
};
} // namespace tree_sitter