traxys/tree-sitter
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Make more things immutable

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This commit is contained in:
Max Brunsfeld 2013-11-13 20:22:06 -08:00
parent f7063ba1d8
commit 8a0a442a24
12 changed files with 40 additions and 60 deletions
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26
src/grammar.cpp
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@ -1,26 +1,14 @@
#include "grammar.h"
using namespace std;
namespace tree_sitter {
Grammar::Grammar(const rule_map &rules, const std::string &start_rule_name) :
Grammar::Grammar(const rule_map_init_list &rules) :
rules(rules),
start_rule_name(start_rule_name) {};
start_rule_name(rules.begin()->first) {}
std::unordered_map<std::string, rules::rule_ptr> build_rule_map(const initializer_list<string> &rule_names,
const initializer_list<rules::rule_ptr> &rule_vals) {
std::unordered_map<std::string, rules::rule_ptr> result;
auto rule_name_i = rule_names.begin();
auto rule_i = rule_vals.begin();
while (rule_i != rule_vals.end()) {
result[*rule_name_i] = *rule_i;
rule_i++;
rule_name_i++;
}
return result;
const rules::rule_ptr Grammar::rule(const std::string &name) {
auto iter = rules.find(name);
return (iter == rules.end()) ?
rules::rule_ptr(nullptr) :
iter->second;
}
Grammar::Grammar(const initializer_list<string> &names, const initializer_list<rules::rule_ptr> &values) :
rules(build_rule_map(names, values)),
start_rule_name(*names.begin()) {}
}