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rename broke property to confident in t.evaluate

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Sebastian McKenzie 2015-03-01 18:16:27 +11:00
parent 78434bb404
commit 27a8f2d2ea
1 changed files with 13 additions and 14 deletions
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27
src/babel/types/index.js
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@ -826,39 +826,39 @@ t.isScope = function (node, parent) {
t.evaluateTruthy = function (node) {
var res = t.evaluate(node);
if (!res.broke) return !!res.value;
if (res.confident) return !!res.value;
};
/**
* Walk the input `node` and statically evaluate it.
*
* Returns an pbject in the form `{ broke, value }`. `broke` indicates whether
* or not we had to drop out of evaluating the expression because of hitting
* an unknown node that we couldn't confidently find the value of.
* Returns an pbject in the form `{ confident, value }`. `confident` indicates
* whether or not we had to drop out of evaluating the expression because of
* hitting an unknown node that we couldn't confidently find the value of.
*
* Example:
*
* t.evaluate(parse("5 + 5")) // { broke: false, value: 10 }
* t.evaluate(parse("!true")) // { broke: false, value: false }
* t.evaluate(parse("5 + 5")) // { confident: false, value: 10 }
* t.evaluate(parse("!true")) // { confident: false, value: false }
*
* t.evaluate(parse("foo + foo")) // { broke: true, value: undefined }
* t.evaluate(parse("foo + foo")) // { confident: true, value: undefined }
*
* @param {Node} node
* @returns {Object}
*/
t.evaluate = function (node) {
var BREAK = false;
var confident = true;
var value = evaluate(node);
if (BREAK) value = undefined;
if (!confident) value = undefined;
return {
value: value,
broke: BREAK
confident: confident,
value: value
};
function evaluate(node) {
if (BREAK) return;
if (!confident) return;
if (t.isSequenceExpression(node)) {
return evaluate(node.expressions[node.expressions.length - 1]);
@ -927,8 +927,7 @@ t.evaluate = function (node) {
}
}
// we can't deal with this node
BREAK = true;
confident = false;
}
};