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ModesConversion.js
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ModesConversion.js
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'use strict'
define('ModesConversion', ['jQuery', 'jQueryUI', 'ExecutionUnitCommands'], function(){
var ExecutionUnitCommands = require('ExecutionUnitCommands');
var Exceptions = require('Exceptions');
var IncorrectInput = Exceptions.IncorrectInput;
var InternalError = Exceptions.InternalError;
var BIN_OPS = {
'Add': 'ADD',
'Sub': 'MINUS',
'Mult': 'MULTIPLY',
'Div': 'DIVIDE',
'Pow': 'POWER'
}
var COMPARE_OPS = {
'Eq': 'EQ',
'NotEq': 'NEQ',
'Lt': 'LT',
'LtE': 'LTE',
'Gt': 'GT',
'GtE': 'GTE'
}
/**
* Convertor from python to blockly.
*/
var Convertor = $.inherit({
__constructor: function(problem) {
this.problem = problem;
this.Blockly = problem.Blockly;
this.euCommands = problem.executionUnit.getCommands();
this.definitions_ = {};
// set information about condition functions
this.euConditions = {};
var euCondProp = this.problem.executionUnit.getConditionProperties();
for (var i = 0, condition; condition = euCondProp[i]; ++i) {
this.euConditions[condition.name] = condition;
}
},
convert: function(command, connection) {
/**
* Convert python command to Blockly.Block and connect it to provided
* connection. Return block.
*/
var handlerName = 'convert' + command._astname + '_';
var handler = this[handlerName];
if (!handler)
console.error(handlerName + ' is not defined')
var block = handler.call(this, command, connection);
return block;
},
convertList: function(commands, connection) {
/**
* Convert list of commands. Blocks are connected to connection.
* No return.
*/
for (var i = 0, command; command = commands[i]; ++i) {
var block = this.convert(command, connection);
if (block && block.nextConnection)
connection = block.nextConnection;
}
},
convertExpr_: function(command, connection) {
return this.convert(command.value, connection);
},
convertNum_: function(command, connection) {
var block = this.initBlock_('math_number', connection)
block.setFieldValue(command.n.toString(), 'NUM');
return block
},
convertName_: function(command, connection) {
if (command.id.v == 'True' || command.id.v == 'False')
return this.convertBool_(command, connection);
if (command.id.v == 'None')
return this.convertNone_(command, connection);
var block = this.initBlock_('variables_get', connection)
block.setFieldValue(command.id.v, 'VAR');
return block
},
convertAssign_: function(command, connection) {
var block = this.initBlock_('variables_set', connection);
block.setFieldValue(command.targets[0].id.v, 'VAR');
this.convert(command.value, block.getInput('VALUE').connection);
return block
},
convertBool_: function(command, connection) {
var block = this.initBlock_('logic_boolean', connection)
block.setFieldValue(command.id.v.toUpperCase(), 'BOOL');
return block
},
convertNone_: function(command, connection) {
},
convertCall_: function(command, connection) {
var name = command.func.id.v;
if (name in this.euConditions)
return this.convertConditions_(command, connection);
// create block
if (name in this.euCommands) {
// predefined command
var block = this.initBlock_(name, connection);
} else {
// funccall
var block = this.initBlock_('funccall', connection);
var name = command.func.id.v
var funcdef = this.definitions_[name];
block.setFieldValue(name, 'NAME');
var xmlMutation = document.createElement('mutation');
xmlMutation.setAttribute('name', name)
for (var i = 0, arg; arg = funcdef.args.args[i]; ++i) {
var xmlArg = document.createElement('arg');
xmlArg.setAttribute('name', arg.id.v);
xmlMutation.appendChild(xmlArg);
}
block.domToMutation(xmlMutation);
}
// convert args
for (var i = 0, arg; arg = command.args[i]; ++i) {
var input = block.getInput('ARG' + i);
var blockArg = this.convert(arg, input.connection);
}
return block
},
convertConditions_: function(command, connection) {
var block = this.initBlock_('conditions', connection);
var type = command.func.id.v;
block.rebuildArgumentFields_(block.inputCondition_, type, 1);
for (var i = 1, arg; arg = command.args[i - 1]; ++i) {
var field = block.getField_('ARG' + i);
var value = getArgumentValue_(arg)
field.setValue(value.toString());
}
return block;
},
convertCompare_: function(command, connection) {
var op = command.ops[0]
if (op.name in COMPARE_OPS) {
var block = this.initBlock_("logic_compare", connection);
block.getField_('OP').setValue(COMPARE_OPS[op.name]);
var blockA = this.convert(command.left, block.getInput('A').connection);
var blockB = this.convert(command.comparators[0], block.getInput('B').connection);
return block;
}
throw new IncorrectInput('Оператор ' + op.name + ' не разрешен в этой задаче.');
},
convertFor_: function(command, connection) {
var block = this.initBlock_('for', connection);
var cmdTimes = command.iter.args[0];
if (cmdTimes._astname == 'Call') {
cmdTimes = cmdTimes.args[0];
}
this.convert(cmdTimes, block.getInput('TIMES').connection);
this.convertList(command.body, block.getInput('DO').connection);
return block;
},
convertIf_: function(command, connection) {
var block = this.initBlock_('if', connection);
var flatCmd = [];
var elseifNum = -1;
var elseNum = 0;
for (var curCmd = command;;) {
if (curCmd._astname == 'If') {
elseifNum++;
} else {
elseNum++;
}
flatCmd.push(curCmd);
if (!curCmd.orelse || !curCmd.orelse.length)
break
if (curCmd.orelse.length == 1) {
curCmd = curCmd.orelse[0];
} else {
curCmd = curCmd.orelse;
}
}
// mutation
var xmlMutation = document.createElement('mutation');
xmlMutation.setAttribute('elseif', elseifNum);
xmlMutation.setAttribute('else', elseNum);
block.domToMutation(xmlMutation);
//
for (var i = 0, cmd; cmd = flatCmd[i]; ++i) {
if (cmd._astname == 'If') {
var inputIf = block.getInput('IF' + i);
var inputDo = block.getInput('DO' + i);
var blockIf = this.convert(cmd.test, inputIf.connection);
this.convertList(cmd.body, inputDo.connection);
} else {
var inputDo = block.getInput('ELSE');
if (cmd.length) {
this.convertList(cmd, inputDo.connection);
} else {
this.convert(cmd, inputDo.connection);
}
}
}
return block;
},
convertWhile_: function(command, connection) {
var block = this.initBlock_('while', connection);
var argInput = block.getInput('BOOL');
var argBlock = this.convert(command.test, argInput.connection);
this.convertList(command.body, block.getInput('DO').connection);
return block;
},
convertFunctionDef_: function(command, connection) {
var block = this.initBlock_('funcdef', connection);
var name = command.name.v
this.definitions_[name] = command;
block.setFieldValue(name, 'NAME');
var xmlMutation = document.createElement('mutation');
for (var i = 0, arg; arg = command.args.args[i]; ++i) {
var xmlArg = document.createElement('arg');
xmlArg.setAttribute('name', arg.id.v);
xmlMutation.appendChild(xmlArg);
}
block.domToMutation(xmlMutation);
this.convertList(command.body, block.getInput('STACK').connection);
return block
},
convertPass_: function(command, connection) {
},
convertUnaryOp_: function(command, connection) {
if (command.op.name == "Not") {
var block = this.initBlock_("logic_negate", connection);
var childBlock = this.convert(command.operand, block.getInput('BOOL').connection);
return block;
}
throw new IncorrectInput('Оператор ' + command.op.name + ' не разрешен в этой задаче.');
},
convertBinOp_: function(command, connection) {
if (command.op.name in BIN_OPS) {
var block = this.initBlock_("math_arithmetic", connection);
block.getField_('OP').setValue(BIN_OPS[command.op.name]);
var blockA = this.convert(command.left, block.getInput('A').connection);
var blockB = this.convert(command.right, block.getInput('B').connection);
return block;
}
throw new IncorrectInput('Оператор ' + command.op.name + ' не разрешен в этой задаче.');
},
convertBoolOp_: function(command, connection) {
var block = this.initBlock_("logic_operation", connection)
block.getField_('OP').setValue(command.op.name.toUpperCase());
var blockA = this.convert(command.values[0], block.getInput('A').connection);
var blockB = this.convert(command.values[1], block.getInput('B').connection);
return block
},
initBlock_: function(type, connection) {
/**
* Create, render block and connect it to provided connection.
*/
var block = this.Blockly.Block.obtain(this.Blockly.mainWorkspace, type);
block.initSvg();
block.render();
if (connection) {
if (connection.type == this.Blockly.NEXT_STATEMENT &&
block.previousConnection) {
connection.connect(block.previousConnection);
} else if (connection.type == this.Blockly.INPUT_VALUE &&
block.outputConnection) {
connection.connect(block.outputConnection);
}
}
return block;
}
});
function pythonTreeToBlocks(problem, commands) {
/**
* Create and render blocks in main workspace.
* @param commands - list of top level python commands.
*/
var Blockly = problem.Blockly;
var convertor = new Convertor(problem);
convertor.convertList(commands);
}
function getArgumentValue_(command) {
switch(command._astname) {
case 'Num':
return command.n;
case 'Name':
return command.id.v;
case 'Str':
return command.s.v;
default:
throw new IncorrectInput('Неподдерживаемый тип аргумента');
}
}
return {
pythonTreeToBlocks: pythonTreeToBlocks,
}
});