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Remove helper function in rule_transitions.cc

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This commit is contained in:
Max Brunsfeld 2014-06-28 18:09:32 -07:00
parent 3be648593e
commit 7a6d3365c5
1 changed files with 7 additions and 17 deletions
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24
src/compiler/build_tables/rule_transitions.cc
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@ -39,12 +39,6 @@ namespace tree_sitter {
});
}
template<typename T>
void transform_transitions(map<T, rule_ptr> *transitions, std::function<const rule_ptr(rule_ptr)> fn) {
for (auto &pair : *transitions)
pair.second = fn(pair.second);
}
template<typename T>
class RuleTransitions : public rules::RuleFn<map<T, rule_ptr>> {
map<T, rule_ptr> apply_to_atom(const rules::Rule *rule) {
@ -72,28 +66,24 @@ namespace tree_sitter {
map<T, rule_ptr> apply_to(const rules::Seq *rule) {
auto result = this->apply(rule->left);
transform_transitions(&result, [&](const rule_ptr &left_rule) {
return rules::Seq::Build({ left_rule, rule->right });
});
if (rule_can_be_blank(rule->left)) {
for (auto &pair : result)
pair.second = rules::Seq::Build({ pair.second, rule->right });
if (rule_can_be_blank(rule->left))
merge_transitions<T>(&result, this->apply(rule->right));
}
return result;
}
map<T, rule_ptr> apply_to(const rules::Repeat *rule) {
auto result = this->apply(rule->content);
transform_transitions(&result, [&](const rule_ptr &value) {
return rules::Seq::Build({ value, rule->copy() });
});
for (auto &pair : result)
pair.second = rules::Seq::Build({ pair.second, rule->copy() });
return result;
}
map<T, rule_ptr> apply_to(const rules::Metadata *rule) {
auto result = this->apply(rule->rule);
transform_transitions(&result, [&](const rule_ptr &to_rule) {
return make_shared<rules::Metadata>(to_rule, rule->value);
});
for (auto &pair : result)
pair.second = make_shared<rules::Metadata>(pair.second, rule->value);
return result;
}
};