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#include "symboltable.hpp" #include "builtin/string.hpp" #include "builtin/symbol.hpp" namespace rubinius { size_t SymbolTable::add(std::string str) { strings.push_back(str); return strings.size() - 1; } SYMBOL SymbolTable::lookup(STATE, std::string str) { size_t sym; hashval hash = String::hash_str((unsigned char*)str.c_str(), str.size()); symbol_map::iterator entry = symbols.find(hash); if(entry == symbols.end()) { sym = add(str); symbol_ids v(1, sym); symbols[hash] = v; } else { symbol_ids v = entry->second; for(symbol_ids::iterator i = v.begin(); i != v.end(); i++) { if(strings[*i] == str) return Symbol::from_index(state, *i); } sym = add(str); v.push_back(sym); } return Symbol::from_index(state, sym); } SYMBOL SymbolTable::lookup(STATE, const char* str) { return lookup(state, std::string(str)); } SYMBOL SymbolTable::lookup(STATE, String* str) { return lookup(state, str->byte_address()); } String* SymbolTable::symbol_to_string(STATE, Symbol* sym) { std::string str = strings[sym->index()]; return String::create(state, str.c_str(), str.size()); } size_t SymbolTable::size() { return strings.size(); } }

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