diff options
Diffstat (limited to 'libsolidity/parsing/Token.cpp')
| -rw-r--r-- | libsolidity/parsing/Token.cpp | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/libsolidity/parsing/Token.cpp b/libsolidity/parsing/Token.cpp index cda639fb..7ea94112 100644 --- a/libsolidity/parsing/Token.cpp +++ b/libsolidity/parsing/Token.cpp @@ -50,6 +50,44 @@ namespace dev namespace solidity { +bool ElementaryTypeNameToken::isElementaryTypeName(Token::Value _baseType, string const& _info) +{ + if (!Token::isElementaryTypeName(_baseType)) + return false; + string baseType = Token::toString(_baseType); + if (baseType.find('M') == string::npos) + return true; + short m; + m = stoi(_info.substr(_info.find_first_of("0123456789"))); + + if (baseType == "bytesM") + return (0 < m && m <= 32) ? true : false; + else if (baseType == "uintM" || baseType == "intM") + return (0 < m && m <= 256 && m % 8 == 0) ? true : false; + else if (baseType == "ufixedMxN" || baseType == "fixedMxN") + { + short n; + m = stoi(_info.substr(_info.find_first_of("0123456789"), _info.find_last_of("x") - 1)); + n = stoi(_info.substr(_info.find_last_of("x") + 1)); + return (0 < n + m && n + m <= 256 && ((n % 8 == 0) && (m % 8 == 0))); + } + return false; +} + +tuple<string, unsigned int, unsigned int> ElementaryTypeNameToken::setTypes(Token::Value _baseType, string const& _toSet) +{ + string baseType = Token::toString(_baseType); + if (_toSet.find_first_of("0123456789") == string::npos) + return make_tuple(baseType, 0, 0); + baseType = baseType.substr(0, baseType.find('M') - 1) + _toSet; + size_t index = _toSet.find('x') == string::npos ? string::npos : _toSet.find('x') - 1; + unsigned int m = stoi(_toSet.substr(0, index)); + unsigned int n = 0; + if (baseType == "fixed" || baseType == "ufixed") + n = stoi(_toSet.substr(_toSet.find('x') + 1)); + return make_tuple(baseType, m, n); +} + #define T(name, string, precedence) #name, char const* const Token::m_name[NUM_TOKENS] = { @@ -80,7 +118,7 @@ char const Token::m_tokenType[] = { TOKEN_LIST(KT, KK) }; -Token::Value Token::fromIdentifierOrKeyword(const std::string& _name) +Token::Value Token::fromIdentifierOrKeyword(const string& _name) { // The following macros are used inside TOKEN_LIST and cause non-keyword tokens to be ignored // and keywords to be put inside the keywords variable. |