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babel-helper-evaluate-path

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babel-helper-evaluate-path - npm Package Compare versions

Comparing version 0.3.0-alpha.670b24ec to 0.3.0-alpha.6ae655c0

70

lib/index.js

@@ -5,7 +5,3 @@ "use strict";

module.exports = function evaluate(path) {
var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
_ref$tdz = _ref.tdz,
tdz = _ref$tdz === undefined ? false : _ref$tdz;
module.exports = function evaluate(path, { tdz = false } = {}) {
if (!tdz) {

@@ -19,3 +15,3 @@ return baseEvaluate(path);

var state = {
const state = {
confident: true

@@ -30,3 +26,3 @@ };

ReferencedIdentifier(idPath) {
var binding = idPath.scope.getBinding(idPath.node.name);
const binding = idPath.scope.getBinding(idPath.node.name);
// don't deopt globals

@@ -36,3 +32,3 @@ // let babel take care of it

var evalResult = evaluateIdentifier(idPath);
const evalResult = evaluateIdentifier(idPath);
if (!evalResult.confident) {

@@ -71,6 +67,6 @@ state.confident = evalResult.confident;

var node = path.node;
const node = path.node;
var binding = path.scope.getBinding(node.name);
const binding = path.scope.getBinding(node.name);

@@ -92,3 +88,3 @@ if (!binding) {

// or "var" referenced in an outer scope
var flowEvalResult = evaluateBasedOnControlFlow(binding, path);
const flowEvalResult = evaluateBasedOnControlFlow(binding, path);

@@ -120,3 +116,3 @@ if (flowEvalResult.confident) {

// early-exit
var declaration = binding.path.parentPath;
const declaration = binding.path.parentPath;
if (declaration.parentPath.isIfStatement() || declaration.parentPath.isLoop() || declaration.parentPath.isSwitchCase()) {

@@ -126,4 +122,4 @@ return { shouldDeopt: true };

var blockParent = binding.path.scope.getBlockParent().path;
var fnParent = binding.path.getFunctionParent();
let blockParent = binding.path.scope.getBlockParent().path;
const fnParent = binding.path.getFunctionParent();

@@ -135,5 +131,3 @@ if (blockParent === fnParent) {

// detect Usage Outside Init Scope
if (!blockParent.get("body").some(function (stmt) {
return stmt.isAncestor(refPath);
})) {
if (!blockParent.get("body").some(stmt => stmt.isAncestor(refPath))) {
return { shouldDeopt: true };

@@ -143,5 +137,5 @@ }

// Detect usage before init
var stmts = fnParent.isProgram() ? fnParent.get("body") : fnParent.get("body").get("body");
const stmts = fnParent.isProgram() ? fnParent.get("body") : fnParent.get("body").get("body");
var compareResult = compareBindingAndReference({
const compareResult = compareBindingAndReference({
binding,

@@ -161,10 +155,10 @@ refPath,

// binding.path is the declarator
var declarator = binding.path;
var _declaration = declarator.parentPath;
const declarator = binding.path;
const declaration = declarator.parentPath;
if (_declaration.parentPath.isIfStatement() || _declaration.parentPath.isLoop() || _declaration.parentPath.isSwitchCase()) {
if (declaration.parentPath.isIfStatement() || declaration.parentPath.isLoop() || declaration.parentPath.isSwitchCase()) {
return { shouldDeopt: true };
}
var scopePath = declarator.scope.path;
let scopePath = declarator.scope.path;
if (scopePath.isFunction() || scopePath.isCatchClause()) {

@@ -175,15 +169,15 @@ scopePath = scopePath.get("body");

// Detect Usage before Init
var _stmts = scopePath.get("body");
const stmts = scopePath.get("body");
var _compareResult = compareBindingAndReference({
const compareResult = compareBindingAndReference({
binding,
refPath,
stmts: _stmts
stmts
});
if (_compareResult.reference && _compareResult.binding) {
if (_compareResult.reference.scope === "current" && _compareResult.reference.idx < _compareResult.binding.idx) {
if (compareResult.reference && compareResult.binding) {
if (compareResult.reference.scope === "current" && compareResult.reference.idx < compareResult.binding.idx) {
throw new Error(`ReferenceError: Used ${refPath.node.name}: ` + `${binding.kind} binding before declaration`);
}
if (_compareResult.reference.scope === "other") {
if (compareResult.reference.scope === "other") {
return { shouldDeopt: true };

@@ -197,8 +191,4 @@ }

function compareBindingAndReference(_ref2) {
var binding = _ref2.binding,
refPath = _ref2.refPath,
stmts = _ref2.stmts;
var state = {
function compareBindingAndReference({ binding, refPath, stmts }) {
const state = {
binding: null,

@@ -214,8 +204,8 @@ reference: null

for (var _iterator = stmts.entries()[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
var _ref3 = _step.value;
const _ref = _step.value;
var _ref4 = _slicedToArray(_ref3, 2);
var _ref2 = _slicedToArray(_ref, 2);
var idx = _ref4[0];
var stmt = _ref4[1];
const idx = _ref2[0];
const stmt = _ref2[1];

@@ -231,3 +221,3 @@ if (stmt.isAncestor(binding.path)) {

for (var _iterator2 = binding.referencePaths[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
var ref = _step2.value;
const ref = _step2.value;

@@ -234,0 +224,0 @@ if (ref === refPath && stmt.isAncestor(ref)) {

{
"name": "babel-helper-evaluate-path",
"version": "0.3.0-alpha.670b24ec",
"version": "0.3.0-alpha.6ae655c0",
"description": "path.evaluate wrapped in a try catch",

@@ -5,0 +5,0 @@ "keywords": [

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