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don't evaluate ArrayExpressions

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This commit is contained in:
Sebastian McKenzie 2015-03-02 17:16:10 +11:00
parent 99ddd02b0a
commit 5ac4dc0541
1 changed files with 6 additions and 14 deletions
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20
src/babel/types/index.js
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@ -887,25 +887,17 @@ t.evaluate = function (node) {
}
if (t.isUnaryExpression(node, { prefix: true })) {
var arg = evaluate(node.argument);
switch (node.operator) {
case "void": return undefined;
case "!": return !evaluate(node.argument);
case "+": return +evaluate(node.argument);
case "-": return -evaluate(node.argument);
case "!": return !arg;
case "+": return +arg;
case "-": return -arg;
}
}
if (t.isArrayExpression(node)) {
// possible perf issues - could deopt on X elements
var values = [];
for (var i = 0; i < node.elements.length; i++) {
values.push(evaluate(node.elements[i]));
}
return values;
}
if (t.isObjectExpression(node)) {
// todo: deopt on mutable computed property keys etc
if (t.isArrayExpression(node) || t.isObjectExpression(node)) {
// we could evaluate these but it's probably impractical and not very useful
}
if (t.isLogicalExpression(node)) {