traxys/tree-sitter
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Clean up intern symbols function

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This commit is contained in:
Max Brunsfeld 2014-05-01 23:40:04 -07:00
parent 5708a181c2
commit b97e4f1de8
1 changed files with 6 additions and 13 deletions
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19
src/compiler/prepare_grammar/intern_symbols.cc
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@ -16,26 +16,19 @@ namespace tree_sitter {
namespace prepare_grammar {
class InternSymbols : public rules::IdentityRuleFn {
const Grammar grammar;
using rules::IdentityRuleFn::apply_to;
int index_of(string rule_name) {
for (size_t i = 0; i < grammar.rules.size(); i++)
if (grammar.rules[i].first == rule_name)
return i;
return -1;
}
rule_ptr apply_to(const rules::NamedSymbol *rule) {
int index = index_of(rule->name);
if (index == -1)
missing_rule_name = rule->name;
return make_shared<rules::Symbol>(index);
for (size_t i = 0; i < grammar.rules.size(); i++)
if (grammar.rules[i].first == rule->name)
return make_shared<rules::Symbol>(i);
missing_rule_name = rule->name;
return rule_ptr();
}
public:
explicit InternSymbols(const Grammar &grammar) : grammar(grammar) {}
const Grammar grammar;
string missing_rule_name;
};