You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
426 lines
12 KiB
426 lines
12 KiB
'use strict';
|
|
|
|
Object.defineProperty(exports, '__esModule', { value: true });
|
|
|
|
var _t = require('@babel/types');
|
|
|
|
function _interopNamespace(e) {
|
|
if (e && e.__esModule) return e;
|
|
var n = Object.create(null);
|
|
if (e) {
|
|
Object.keys(e).forEach(function (k) {
|
|
if (k !== 'default') {
|
|
var d = Object.getOwnPropertyDescriptor(e, k);
|
|
Object.defineProperty(n, k, d.get ? d : {
|
|
enumerable: true,
|
|
get: function () { return e[k]; }
|
|
});
|
|
}
|
|
});
|
|
}
|
|
n["default"] = e;
|
|
return Object.freeze(n);
|
|
}
|
|
|
|
var _t__namespace = /*#__PURE__*/_interopNamespace(_t);
|
|
|
|
function willPathCastToBoolean(path) {
|
|
const maybeWrapped = path;
|
|
const {
|
|
node,
|
|
parentPath
|
|
} = maybeWrapped;
|
|
if (parentPath.isLogicalExpression()) {
|
|
const {
|
|
operator,
|
|
right
|
|
} = parentPath.node;
|
|
if (operator === "&&" || operator === "||" || operator === "??" && node === right) {
|
|
return willPathCastToBoolean(parentPath);
|
|
}
|
|
}
|
|
if (parentPath.isSequenceExpression()) {
|
|
const {
|
|
expressions
|
|
} = parentPath.node;
|
|
if (expressions[expressions.length - 1] === node) {
|
|
return willPathCastToBoolean(parentPath);
|
|
} else {
|
|
return true;
|
|
}
|
|
}
|
|
return parentPath.isConditional({
|
|
test: node
|
|
}) || parentPath.isUnaryExpression({
|
|
operator: "!"
|
|
}) || parentPath.isLoop({
|
|
test: node
|
|
});
|
|
}
|
|
|
|
const {
|
|
LOGICAL_OPERATORS,
|
|
arrowFunctionExpression,
|
|
assignmentExpression,
|
|
binaryExpression,
|
|
booleanLiteral,
|
|
callExpression,
|
|
cloneNode,
|
|
conditionalExpression,
|
|
identifier,
|
|
isMemberExpression,
|
|
isOptionalCallExpression,
|
|
isOptionalMemberExpression,
|
|
isUpdateExpression,
|
|
logicalExpression,
|
|
memberExpression,
|
|
nullLiteral,
|
|
optionalCallExpression,
|
|
optionalMemberExpression,
|
|
sequenceExpression,
|
|
updateExpression
|
|
} = _t__namespace;
|
|
class AssignmentMemoiser {
|
|
constructor() {
|
|
this._map = void 0;
|
|
this._map = new WeakMap();
|
|
}
|
|
has(key) {
|
|
return this._map.has(key);
|
|
}
|
|
get(key) {
|
|
if (!this.has(key)) return;
|
|
const record = this._map.get(key);
|
|
const {
|
|
value
|
|
} = record;
|
|
record.count--;
|
|
if (record.count === 0) {
|
|
return assignmentExpression("=", value, key);
|
|
}
|
|
return value;
|
|
}
|
|
set(key, value, count) {
|
|
return this._map.set(key, {
|
|
count,
|
|
value
|
|
});
|
|
}
|
|
}
|
|
function toNonOptional(path, base) {
|
|
const {
|
|
node
|
|
} = path;
|
|
if (isOptionalMemberExpression(node)) {
|
|
return memberExpression(base, node.property, node.computed);
|
|
}
|
|
if (path.isOptionalCallExpression()) {
|
|
const callee = path.get("callee");
|
|
if (path.node.optional && callee.isOptionalMemberExpression()) {
|
|
const object = callee.node.object;
|
|
const context = path.scope.maybeGenerateMemoised(object);
|
|
callee.get("object").replaceWith(assignmentExpression("=", context, object));
|
|
return callExpression(memberExpression(base, identifier("call")), [context, ...path.node.arguments]);
|
|
}
|
|
return callExpression(base, path.node.arguments);
|
|
}
|
|
return path.node;
|
|
}
|
|
|
|
function isInDetachedTree(path) {
|
|
while (path) {
|
|
if (path.isProgram()) break;
|
|
const {
|
|
parentPath,
|
|
container,
|
|
listKey
|
|
} = path;
|
|
const parentNode = parentPath.node;
|
|
if (listKey) {
|
|
if (container !==
|
|
parentNode[listKey]) {
|
|
return true;
|
|
}
|
|
} else {
|
|
if (container !== parentNode) return true;
|
|
}
|
|
path = parentPath;
|
|
}
|
|
return false;
|
|
}
|
|
const handle = {
|
|
memoise() {
|
|
},
|
|
|
|
handle(member, noDocumentAll) {
|
|
const {
|
|
node,
|
|
parent,
|
|
parentPath,
|
|
scope
|
|
} = member;
|
|
if (member.isOptionalMemberExpression()) {
|
|
if (isInDetachedTree(member)) return;
|
|
|
|
const endPath = member.find(({
|
|
node,
|
|
parent
|
|
}) => {
|
|
if (isOptionalMemberExpression(parent)) {
|
|
return parent.optional || parent.object !== node;
|
|
}
|
|
if (isOptionalCallExpression(parent)) {
|
|
return (
|
|
node !== member.node && parent.optional || parent.callee !== node
|
|
);
|
|
}
|
|
return true;
|
|
});
|
|
|
|
if (scope.path.isPattern()) {
|
|
endPath.replaceWith(
|
|
callExpression(arrowFunctionExpression([], endPath.node), []));
|
|
return;
|
|
}
|
|
const willEndPathCastToBoolean = willPathCastToBoolean(endPath);
|
|
const rootParentPath = endPath.parentPath;
|
|
if (rootParentPath.isUpdateExpression({
|
|
argument: node
|
|
}) || rootParentPath.isAssignmentExpression({
|
|
left: node
|
|
})) {
|
|
throw member.buildCodeFrameError(`can't handle assignment`);
|
|
}
|
|
const isDeleteOperation = rootParentPath.isUnaryExpression({
|
|
operator: "delete"
|
|
});
|
|
if (isDeleteOperation && endPath.isOptionalMemberExpression() && endPath.get("property").isPrivateName()) {
|
|
throw member.buildCodeFrameError(`can't delete a private class element`);
|
|
}
|
|
|
|
let startingOptional = member;
|
|
for (;;) {
|
|
if (startingOptional.isOptionalMemberExpression()) {
|
|
if (startingOptional.node.optional) break;
|
|
startingOptional = startingOptional.get("object");
|
|
continue;
|
|
} else if (startingOptional.isOptionalCallExpression()) {
|
|
if (startingOptional.node.optional) break;
|
|
startingOptional = startingOptional.get("callee");
|
|
continue;
|
|
}
|
|
throw new Error(`Internal error: unexpected ${startingOptional.node.type}`);
|
|
}
|
|
|
|
const startingNode = startingOptional.isOptionalMemberExpression() ?
|
|
startingOptional.node.object :
|
|
startingOptional.node.callee;
|
|
const baseNeedsMemoised = scope.maybeGenerateMemoised(startingNode);
|
|
const baseRef = baseNeedsMemoised != null ? baseNeedsMemoised : startingNode;
|
|
|
|
const parentIsOptionalCall = parentPath.isOptionalCallExpression({
|
|
callee: node
|
|
});
|
|
const isOptionalCall = parent => parentIsOptionalCall;
|
|
const parentIsCall = parentPath.isCallExpression({
|
|
callee: node
|
|
});
|
|
startingOptional.replaceWith(toNonOptional(startingOptional, baseRef));
|
|
if (isOptionalCall()) {
|
|
if (parent.optional) {
|
|
parentPath.replaceWith(this.optionalCall(member, parent.arguments));
|
|
} else {
|
|
parentPath.replaceWith(this.call(member, parent.arguments));
|
|
}
|
|
} else if (parentIsCall) {
|
|
member.replaceWith(this.boundGet(member));
|
|
} else if (this.delete && parentPath.isUnaryExpression({
|
|
operator: "delete"
|
|
})) {
|
|
parentPath.replaceWith(this.delete(member));
|
|
} else {
|
|
member.replaceWith(this.get(member));
|
|
}
|
|
let regular = member.node;
|
|
for (let current = member; current !== endPath;) {
|
|
const parentPath = current.parentPath;
|
|
if (parentPath === endPath && isOptionalCall() && parent.optional) {
|
|
regular = parentPath.node;
|
|
break;
|
|
}
|
|
regular = toNonOptional(parentPath, regular);
|
|
current = parentPath;
|
|
}
|
|
let context;
|
|
const endParentPath = endPath.parentPath;
|
|
if (isMemberExpression(regular) && endParentPath.isOptionalCallExpression({
|
|
callee: endPath.node,
|
|
optional: true
|
|
})) {
|
|
const {
|
|
object
|
|
} = regular;
|
|
context = member.scope.maybeGenerateMemoised(object);
|
|
if (context) {
|
|
regular.object = assignmentExpression("=", context,
|
|
object);
|
|
}
|
|
}
|
|
let replacementPath = endPath;
|
|
if (isDeleteOperation) {
|
|
replacementPath = endParentPath;
|
|
regular = endParentPath.node;
|
|
}
|
|
const baseMemoised = baseNeedsMemoised ? assignmentExpression("=",
|
|
cloneNode(baseRef), cloneNode(startingNode)) : cloneNode(baseRef);
|
|
if (willEndPathCastToBoolean) {
|
|
let nonNullishCheck;
|
|
if (noDocumentAll) {
|
|
nonNullishCheck = binaryExpression("!=", baseMemoised, nullLiteral());
|
|
} else {
|
|
nonNullishCheck = logicalExpression("&&", binaryExpression("!==", baseMemoised, nullLiteral()), binaryExpression("!==", cloneNode(baseRef), scope.buildUndefinedNode()));
|
|
}
|
|
replacementPath.replaceWith(logicalExpression("&&", nonNullishCheck, regular));
|
|
} else {
|
|
let nullishCheck;
|
|
if (noDocumentAll) {
|
|
nullishCheck = binaryExpression("==", baseMemoised, nullLiteral());
|
|
} else {
|
|
nullishCheck = logicalExpression("||", binaryExpression("===", baseMemoised, nullLiteral()), binaryExpression("===", cloneNode(baseRef), scope.buildUndefinedNode()));
|
|
}
|
|
replacementPath.replaceWith(conditionalExpression(nullishCheck, isDeleteOperation ? booleanLiteral(true) : scope.buildUndefinedNode(), regular));
|
|
}
|
|
|
|
if (context) {
|
|
const endParent = endParentPath.node;
|
|
endParentPath.replaceWith(optionalCallExpression(optionalMemberExpression(endParent.callee, identifier("call"), false, true), [cloneNode(context), ...endParent.arguments], false));
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (isUpdateExpression(parent, {
|
|
argument: node
|
|
})) {
|
|
if (this.simpleSet) {
|
|
member.replaceWith(this.simpleSet(member));
|
|
return;
|
|
}
|
|
const {
|
|
operator,
|
|
prefix
|
|
} = parent;
|
|
|
|
this.memoise(member, 2);
|
|
const ref = scope.generateUidIdentifierBasedOnNode(node);
|
|
scope.push({
|
|
id: ref
|
|
});
|
|
const seq = [
|
|
assignmentExpression("=", cloneNode(ref), this.get(member))];
|
|
if (prefix) {
|
|
seq.push(updateExpression(operator, cloneNode(ref), prefix));
|
|
|
|
const value = sequenceExpression(seq);
|
|
parentPath.replaceWith(this.set(member, value));
|
|
return;
|
|
} else {
|
|
const ref2 = scope.generateUidIdentifierBasedOnNode(node);
|
|
scope.push({
|
|
id: ref2
|
|
});
|
|
seq.push(assignmentExpression("=", cloneNode(ref2), updateExpression(operator, cloneNode(ref), prefix)), cloneNode(ref));
|
|
|
|
const value = sequenceExpression(seq);
|
|
parentPath.replaceWith(sequenceExpression([this.set(member, value), cloneNode(ref2)]));
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (parentPath.isAssignmentExpression({
|
|
left: node
|
|
})) {
|
|
if (this.simpleSet) {
|
|
member.replaceWith(this.simpleSet(member));
|
|
return;
|
|
}
|
|
const {
|
|
operator,
|
|
right: value
|
|
} = parentPath.node;
|
|
if (operator === "=") {
|
|
parentPath.replaceWith(this.set(member, value));
|
|
} else {
|
|
const operatorTrunc = operator.slice(0, -1);
|
|
if (LOGICAL_OPERATORS.includes(operatorTrunc)) {
|
|
this.memoise(member, 1);
|
|
parentPath.replaceWith(logicalExpression(operatorTrunc, this.get(member), this.set(member, value)));
|
|
} else {
|
|
this.memoise(member, 2);
|
|
parentPath.replaceWith(this.set(member, binaryExpression(operatorTrunc, this.get(member), value)));
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (parentPath.isCallExpression({
|
|
callee: node
|
|
})) {
|
|
parentPath.replaceWith(this.call(member, parentPath.node.arguments));
|
|
return;
|
|
}
|
|
|
|
if (parentPath.isOptionalCallExpression({
|
|
callee: node
|
|
})) {
|
|
if (scope.path.isPattern()) {
|
|
parentPath.replaceWith(
|
|
callExpression(arrowFunctionExpression([], parentPath.node), []));
|
|
return;
|
|
}
|
|
parentPath.replaceWith(this.optionalCall(member, parentPath.node.arguments));
|
|
return;
|
|
}
|
|
|
|
if (this.delete && parentPath.isUnaryExpression({
|
|
operator: "delete"
|
|
})) {
|
|
parentPath.replaceWith(this.delete(member));
|
|
return;
|
|
}
|
|
|
|
if (
|
|
parentPath.isForXStatement({
|
|
left: node
|
|
}) ||
|
|
parentPath.isObjectProperty({
|
|
value: node
|
|
}) && parentPath.parentPath.isObjectPattern() ||
|
|
parentPath.isAssignmentPattern({
|
|
left: node
|
|
}) && parentPath.parentPath.isObjectProperty({
|
|
value: parent
|
|
}) && parentPath.parentPath.parentPath.isObjectPattern() ||
|
|
parentPath.isArrayPattern() ||
|
|
parentPath.isAssignmentPattern({
|
|
left: node
|
|
}) && parentPath.parentPath.isArrayPattern() ||
|
|
parentPath.isRestElement()) {
|
|
member.replaceWith(this.destructureSet(member));
|
|
return;
|
|
}
|
|
if (parentPath.isTaggedTemplateExpression()) {
|
|
member.replaceWith(this.boundGet(member));
|
|
} else {
|
|
member.replaceWith(this.get(member));
|
|
}
|
|
}
|
|
};
|
|
function memberExpressionToFunctions(path, visitor, state) {
|
|
path.traverse(visitor, Object.assign({}, handle, state, {
|
|
memoiser: new AssignmentMemoiser()
|
|
}));
|
|
}
|
|
|
|
exports["default"] = memberExpressionToFunctions;
|
|
//# sourceMappingURL=index.js.map
|