hexo/node_modules/@babel/helper-remap-async-to-gener.../lib/index.js

78 lines
2.1 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = _default;
var _helperWrapFunction = require("@babel/helper-wrap-function");
var _helperAnnotateAsPure = require("@babel/helper-annotate-as-pure");
var _helperEnvironmentVisitor = require("@babel/helper-environment-visitor");
var _core = require("@babel/core");
var _t = require("@babel/types");
const {
callExpression,
cloneNode,
isIdentifier,
isThisExpression,
yieldExpression
} = _t;
const awaitVisitor = _core.traverse.visitors.merge([{
ArrowFunctionExpression(path) {
path.skip();
},
AwaitExpression(path, {
wrapAwait
}) {
const argument = path.get("argument");
path.replaceWith(yieldExpression(wrapAwait ? callExpression(cloneNode(wrapAwait), [argument.node]) : argument.node));
}
}, _helperEnvironmentVisitor.default]);
function _default(path, helpers, noNewArrows, ignoreFunctionLength) {
path.traverse(awaitVisitor, {
wrapAwait: helpers.wrapAwait
});
const isIIFE = checkIsIIFE(path);
path.node.async = false;
path.node.generator = true;
(0, _helperWrapFunction.default)(path, cloneNode(helpers.wrapAsync), noNewArrows, ignoreFunctionLength);
const isProperty = path.isObjectMethod() || path.isClassMethod() || path.parentPath.isObjectProperty() || path.parentPath.isClassProperty();
if (!isProperty && !isIIFE && path.isExpression()) {
(0, _helperAnnotateAsPure.default)(path);
}
function checkIsIIFE(path) {
if (path.parentPath.isCallExpression({
callee: path.node
})) {
return true;
}
const {
parentPath
} = path;
if (parentPath.isMemberExpression() && isIdentifier(parentPath.node.property, {
name: "bind"
})) {
const {
parentPath: bindCall
} = parentPath;
return bindCall.isCallExpression() && bindCall.node.arguments.length === 1 && isThisExpression(bindCall.node.arguments[0]) && bindCall.parentPath.isCallExpression({
callee: bindCall.node
});
}
return false;
}
}