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CodeMode.js
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CodeMode.js
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define('CodeMode', ['SkulptModule'], function(){
function outf(text)
{
text = text.replace(/</g, '<');
$('#cons' + getCurProblem()).append(text);
}
function getCurBlock()
{
var problem = getCurProblem();
if(!finalcode[problem]){
return undefined;
}
var scope = finalcode[problem].compiled.scopes[$scope[problem]].scopename;
return eval('$loc[' + problem + '].' + scope + '.stack[$loc[' + problem + '].' + scope + '.stack.length - 1].blk');
}
function getScope()
{
var problem = getCurProblem();
if(!finalcode[problem]){
return undefined;
}
return finalcode[problem].compiled.scopes[$scope[problem]];
}
function calculateExpression(expression)
{
if (expression._astname == 'Name')
{
var result = undefined;
var problem = getCurProblem();
if(!finalcode[problem]){
return undefined;
}
if ($scope[problem] != undefined && $loc[problem] != undefined)
{
var scope = finalcode[problem].compiled.scopes[$scope[problem]].scopename;
var t_scope = $scope[problem],
t_scopename = $scopename[problem],
t_scopestack = $scopestack[problem];
var name = expression.id.v;
//find name
while(eval("$loc[" + problem + "]." + t_scopename + ".stack[" + t_scopestack + "].loc." + name) == undefined
&& eval("$loc[" + problem + "]." + t_scopename + ".stack[" + t_scopestack + "].parentStack") != undefined)
{
t_scope = eval("$loc[" + problem + "]." + t_scopename + ".stack[" + t_scopestack + "].parent");
var nm = t_scopename;
t_scopename = eval("$loc[" + problem + "]." + t_scopename + ".stack[" + t_scopestack + "].parentName");
t_scopestack = eval("$loc[" + problem + "]." + nm + ".stack[" + t_scopestack + "].parentStack");
}
result = eval("$loc[" + problem + "]." + t_scopename + ".stack[" + t_scopestack + "].loc." + name) !== undefined ?
eval("$loc[" + problem + "]." + t_scopename + ".stack[" + t_scopestack + "].loc." + name):
Sk.misceval.loadname(name, $gbl[problem], 1);
}
return result;
}
if (expression._astname == 'Num')
return expression.n;
if (expression._astname == 'BinOp')
{
var a = calculateExpression(expression.left);
var b = calculateExpression(expression.right);
return Sk.abstr.boNumPromote_[expression.op.prototype._astname](a, b);
}
if (expression._astname == 'UnaryOp')
{
var v = calculateExpression(expression.operand);
var op = expression.op.prototype._astname;
if (op === "USub") return -v;
if (op === "UAdd") return v;
if (op === "Invert") return ~v;
}
return undefined;
}
function calculateValue(source)
{
var filename = '<stdin>.py'
var cst = Sk.parse(filename, source);
var ast = Sk.astFromParse(cst, filename);
var st = Sk.symboltable(ast, filename);
if (!(ast.body && ast.body.length == 1))
return 'Invalid expression';
var expr = ast.body[0];
if (expr._astname != 'Expr')
return 'Invalid expression';
return calculateExpression(expr.value);
}
function compile(source, problem, commands, conditionProperties) {
try {
if (source != '') {
Sk.configure({
output: outf,
'problem': problem
});
finalcode[problem] = Sk.importMainWithBody("<stdin>", false, source);
$scope[problem] = 0,
$gbl[problem] = {},
$loc[problem] = $gbl[problem];
for (var i = 0; i < finalcode[problem].compiled.scopes.length; ++i) {
eval('$loc[' + problem + '].' + finalcode[problem].compiled.scopes[i].scopename + ' = {};');
eval('$loc[' + problem + '].' + finalcode[problem].compiled.scopes[i].scopename + '.defaults = [];');
eval('$loc[' + problem + '].' + finalcode[problem].compiled.scopes[i].scopename + '.stack = [];');
}
eval('$loc[' + problem + '].scope0.stack.push({"loc": {}, "param": {}, blk: 0});');
nextline[problem] = getScope().firstlineno;
$scopename[problem] = finalcode[problem].compiled.scopes[0].scopename;
$scopestack[problem] = 0;
for (var i in commands) {
$gbl[problem][commands[i].name] = commands[i].handler;
}
for (var i = 0; i < conditionProperties.length; ++i) {
$gbl[problem][conditionProperties[i].name] = conditionProperties[i].handlerFunc;
}
}
} catch (e) {
//console.error(e);
finalcode[problem] = undefined;
$scope[problem] = undefined,
$gbl[problem] = undefined,
$loc[problem] = $gbl[problem];
nextline[problem] = undefined;
throw e;
}
}
return {
outf: outf,
compile: compile,
getCurBlock: getCurBlock,
getScope: getScope,
calculateValue: calculateValue
}
});