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Ensure that there are no duplicate lex states

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This commit is contained in:
Max Brunsfeld 2015-12-20 15:26:35 -08:00
parent c9db5499e9
commit 386b124866
11 changed files with 418 additions and 401 deletions
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11
src/compiler/parse_table.cc
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@ -9,6 +9,7 @@ using std::ostream;
using std::to_string;
using std::set;
using std::vector;
using std::function;
using rules::Symbol;
ParseAction::ParseAction(ParseActionType type, ParseStateId state_index,
@ -126,6 +127,16 @@ set<Symbol> ParseState::expected_inputs() const {
return result;
}
void ParseState::each_action(function<void(ParseAction *)> fn) {
for (auto &entry : actions)
for (ParseAction &action : entry.second)
fn(&action);
}
bool ParseState::operator==(const ParseState &other) const {
return actions == other.actions;
}
set<Symbol> ParseTable::all_symbols() const {
set<Symbol> result;
for (auto &pair : symbols)