ParseSmartContract

对用户编写的合约代码进行解析！

// we have a rudimentary line by line parser
// SC authors must make sure code coverage is 100 %
// we are doing away with AST

封装了 parse_function_line

check_valid_name

// checks whether a function name is valid
// a valid name starts with a non digit and does not contain .

check_valid_type

parse_function_line

// this will parse 1 line at a time, if there is an error, it is returned

runSmartContract_internal

// this will run a function from a loaded SC and execute it if possible
// it can run all internal functions
// parameters must be passed as strings

格式化等处理后，交给虚拟机处理。
封装了 interpret_SmartContract

RunSmartContract

执行合约代码！

// 输入包括：源代码、入口、状态、参数

封装了 runSmartContract_internal