DSLContext

_Context of DSL code

One of the core contracts of the project. It contains opcodes and aliases for commands. During creating Context contract executes the initOpcodes function that provides basic working opcodes_

branchingOpcodes

address branchingOpcodes

comparisonOpcodes

address comparisonOpcodes

complexOpcodes

address complexOpcodes

logicalOpcodes

address logicalOpcodes

otherOpcodes

address otherOpcodes

opCodeByName

mapping(string => bytes1) opCodeByName

selectorByOpcode

mapping(bytes1 => bytes4) selectorByOpcode

numOfArgsByOpcode

mapping(string => uint8) numOfArgsByOpcode

isCommand

mapping(string => bool) isCommand

opcodeLibNameByOpcode

mapping(bytes1 => enum IDSLContext.OpcodeLibNames) opcodeLibNameByOpcode

asmSelectors

mapping(string => bytes4) asmSelectors

opsPriors

mapping(string => uint256) opsPriors

operators

string[] operators

branchSelectors

mapping(string => mapping(bytes1 => bytes4)) branchSelectors

branchCodes

mapping(string => mapping(string => bytes1)) branchCodes

aliases

mapping(string => string) aliases

nonZeroAddress

modifier nonZeroAddress(address _addr)

constructor

constructor(address _comparisonOpcodes, address _branchingOpcodes, address _logicalOpcodes, address _otherOpcodes, address _complexOpcodes) public

initOpcodes

function initOpcodes() internal

Creates a list of opcodes and its aliases with information about each of them: - name - selectors of opcode functions, - used library for each of opcode for Executor contract - asm selector of function that uses in Parser contract Function contains simple opcodes as arithmetic, comparison and bitwise. In additional to that it contains complex opcodes that can load data (variables with different types) from memory and helpers like transfer tokens or native coins to the address or opcodes branching and internal DSL functions.

operatorsLen

function operatorsLen() external view returns (uint256)

Returns the amount of stored operators

_addOpcode

function _addOpcode(string _name, bytes1 _opcode, bytes4 _opSelector, bytes4 _asmSelector, enum IDSLContext.OpcodeLibNames _libName, uint8 _numOfArgs, bool _isCommand) internal

Adds the opcode for the DSL command

Parameters

Name	Type	Description
_name	string	is the name of the command
_opcode	bytes1	is the opcode of the command
_opSelector	bytes4	is the selector of the function for this opcode from onle of library in contracts/libs/opcodes/*
_asmSelector	bytes4	is the selector of the function from the Parser for that opcode
_libName	enum IDSLContext.OpcodeLibNames	is the name of library that is used fot the opcode
_numOfArgs	uint8	The number of arguments for this opcode
_isCommand	bool

_addOpcodeForOperator

function _addOpcodeForOperator(string _name, bytes1 _opcode, bytes4 _opSelector, bytes4 _asmSelector, enum IDSLContext.OpcodeLibNames _libName, uint256 _priority) internal

Adds the opcode for the operator

Parameters

Name	Type	Description
_name	string	is the name of the operator
_opcode	bytes1	is the opcode of the operator
_opSelector	bytes4	is the selector of the function for this operator from onle of library in contracts/libs/opcodes/*
_asmSelector	bytes4	is the selector of the function from the Parser for this operator
_libName	enum IDSLContext.OpcodeLibNames	is the name of library that is used fot the operator
_priority	uint256	is the priority for the opcode

_addOpcodeBranch

function _addOpcodeBranch(string _baseOpName, string _branchName, bytes1 _branchCode, bytes4 _selector) internal

As branched (complex) DSL commands have their own name, types and values the _addOpcodeBranch provides adding opcodes using additional internal branch opcodes.

Parameters

Name	Type	Description
_baseOpName	string	is the name of the command
_branchName	string	is the type for the value
_branchCode	bytes1	is the code for the certain name and its type
_selector	bytes4	is the selector of the function from the Parser for this command

_addOperator

function _addOperator(string _op, uint256 _priority) internal

Adds the operator by its priority Note: bigger number => bigger priority

Parameters

Name	Type	Description
_op	string	is the name of the operator
_priority	uint256	is the priority of the operator

_addAlias

function _addAlias(string _baseCmd, string _alias) internal

Adds an alias to the already existing DSL command

Parameters

Name	Type	Description
_baseCmd	string	is the name of the command
_alias	string	is the alias command name for the base command