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var semver = require("semver");
var vm = require("vm");
function safe_log(arg, level) {
if (arg) switch (typeof arg) {
case "function":
return arg.toString();
case "object":
if (/Error$/.test(arg.name)) return arg.toString();
arg.constructor.toString();
if (level--) for (var key in arg) {
if (!Object.getOwnPropertyDescriptor(arg, key).get) {
arg[key] = safe_log(arg[key], level);
}
}
}
return arg;
}
var FUNC_TOSTRING = [
"Function.prototype.toString = Function.prototype.valueOf = function() {",
" var id = 100000;",
" return function() {",
' if (this === Array) return "[Function: Array]";',
' if (this === Object) return "[Function: Object]";',
" var i = this.name;",
' if (typeof i != "number") {',
" i = ++id;",
].concat(Object.getOwnPropertyDescriptor(Function.prototype, "name").configurable ? [
' Object.defineProperty(this, "name", {',
" get: function() {",
" return i;",
" }",
" });",
] : [], [
" }",
' return "[Function: " + i + "]";',
" }",
"}();",
'Object.defineProperty(Function.prototype, "valueOf", { enumerable: false });',
]).join("\n");
exports.run_code = function(code) {
var stdout = "";
var original_write = process.stdout.write;
process.stdout.write = function(chunk) {
stdout += chunk;
};
try {
vm.runInNewContext([
FUNC_TOSTRING,
"!function() {",
code,
"}();",
].join("\n"), {
console: {
log: function(msg) {
if (arguments.length == 1 && typeof msg == "string") {
return console.log("%s", msg);
}
return console.log.apply(console, [].map.call(arguments, function(arg) {
return safe_log(arg, 3);
}));
}
}
}, { timeout: 5000 });
return stdout;
} catch (ex) {
return ex;
} finally {
process.stdout.write = original_write;
}
};
exports.same_stdout = semver.satisfies(process.version, "0.12") ? function(expected, actual) {
if (typeof expected != typeof actual) return false;
if (typeof expected != "string") {
if (expected.name != actual.name) return false;
expected = expected.message.slice(expected.message.lastIndexOf("\n") + 1);
actual = actual.message.slice(actual.message.lastIndexOf("\n") + 1);
}
return expected == actual;
} : function(expected, actual) {
return typeof expected == typeof actual && expected.toString() == actual.toString();
};
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