/
wrap.js
132 lines (114 loc) · 3.22 KB
/
wrap.js
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var assert = require('assert');
var burrito = require('burrito');
var vm = require('vm');
exports.wrapCalls = function () {
var src = burrito('f() && g(h())\nfoo()', function (node) {
if (node.name === 'call') node.wrap('qqq(%s)');
if (node.name === 'binary') node.wrap('bbb(%s)');
assert.ok(node.state);
assert.equal(this, node.state);
});
var tg = setTimeout(function () {
assert.fail('g() never called');
}, 5000);
var times = { bbb : 0, qqq : 0 };
var res = [];
vm.runInNewContext(src, {
bbb : function (x) {
times.bbb ++;
res.push(x);
return x;
},
qqq : function (x) {
times.qqq ++;
res.push(x);
return x;
},
f : function () { return true },
g : function (h) {
clearTimeout(tg);
assert.equal(h, 7);
return h !== 7
},
h : function () { return 7 },
foo : function () { return 'foo!' },
});
assert.deepEqual(res, [
true, // f()
7, // h()
false, // g(h())
false, // f() && g(h())
'foo!', // foo()
]);
assert.equal(times.bbb, 1);
assert.equal(times.qqq, 4);
};
exports.wrapFn = function () {
var src = burrito('f(g(h(5)))', function (node) {
if (node.name === 'call') {
node.wrap(function (s) {
return 'z(' + s + ')';
});
}
});
var times = 0;
assert.equal(
vm.runInNewContext(src, {
f : function (x) { return x + 1 },
g : function (x) { return x + 2 },
h : function (x) { return x + 3 },
z : function (x) {
times ++;
return x * 10;
},
}),
(((((5 + 3) * 10) + 2) * 10) + 1) * 10
);
assert.equal(times, 3);
};
exports.binaryString = function () {
var src = 'z(x + y)';
var context = {
x : 3,
y : 4,
z : function (n) { return n * 10 },
};
var res = burrito.microwave(src, context, function (node) {
if (node.name === 'binary') {
node.wrap('%a*2 - %b*2');
}
});
assert.equal(res, 10 * (3*2 - 4*2));
};
exports.binaryFn = function () {
var src = 'z(x + y)';
var context = {
x : 3,
y : 4,
z : function (n) { return n * 10 },
};
var res = burrito.microwave(src, context, function (node) {
if (node.name === 'binary') {
node.wrap(function (expr, a, b) {
return '(' + a + ')*2 - ' + '(' + b + ')*2';
});
}
});
assert.equal(res, 10 * (3*2 - 4*2));
};
exports.intersperse = function () {
var src = '(' + (function () {
f();
g();
}).toString() + ')()';
var times = { f : 0, g : 0, zzz : 0 };
var context = {
f : function () { times.f ++ },
g : function () { times.g ++ },
zzz : function () { times.zzz ++ },
};
burrito.microwave(src, context, function (node) {
if (node.name === 'stat') node.wrap('{ zzz(); %s }');
});
assert.deepEqual(times, { f : 1, g : 1, zzz : 3 });
};