134 lines
4.2 KiB
JavaScript
134 lines
4.2 KiB
JavaScript
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports.extractComputedKeys = extractComputedKeys;
|
|
exports.injectInitialization = injectInitialization;
|
|
exports.memoiseComputedKey = memoiseComputedKey;
|
|
var _core = require("@babel/core");
|
|
var _traverse = require("@babel/traverse");
|
|
const findBareSupers = _traverse.visitors.environmentVisitor({
|
|
Super(path) {
|
|
const {
|
|
node,
|
|
parentPath
|
|
} = path;
|
|
if (parentPath.isCallExpression({
|
|
callee: node
|
|
})) {
|
|
this.push(parentPath);
|
|
}
|
|
}
|
|
});
|
|
const referenceVisitor = {
|
|
"TSTypeAnnotation|TypeAnnotation"(path) {
|
|
path.skip();
|
|
},
|
|
ReferencedIdentifier(path, {
|
|
scope
|
|
}) {
|
|
if (scope.hasOwnBinding(path.node.name)) {
|
|
scope.rename(path.node.name);
|
|
path.skip();
|
|
}
|
|
}
|
|
};
|
|
function handleClassTDZ(path, state) {
|
|
if (state.classBinding && state.classBinding === path.scope.getBinding(path.node.name)) {
|
|
const classNameTDZError = state.file.addHelper("classNameTDZError");
|
|
const throwNode = _core.types.callExpression(classNameTDZError, [_core.types.stringLiteral(path.node.name)]);
|
|
path.replaceWith(_core.types.sequenceExpression([throwNode, path.node]));
|
|
path.skip();
|
|
}
|
|
}
|
|
const classFieldDefinitionEvaluationTDZVisitor = {
|
|
ReferencedIdentifier: handleClassTDZ
|
|
};
|
|
function injectInitialization(path, constructor, nodes, renamer, lastReturnsThis) {
|
|
if (!nodes.length) return;
|
|
const isDerived = !!path.node.superClass;
|
|
if (!constructor) {
|
|
const newConstructor = _core.types.classMethod("constructor", _core.types.identifier("constructor"), [], _core.types.blockStatement([]));
|
|
if (isDerived) {
|
|
newConstructor.params = [_core.types.restElement(_core.types.identifier("args"))];
|
|
newConstructor.body.body.push(_core.template.statement.ast`super(...args)`);
|
|
}
|
|
[constructor] = path.get("body").unshiftContainer("body", newConstructor);
|
|
}
|
|
if (renamer) {
|
|
renamer(referenceVisitor, {
|
|
scope: constructor.scope
|
|
});
|
|
}
|
|
if (isDerived) {
|
|
const bareSupers = [];
|
|
constructor.traverse(findBareSupers, bareSupers);
|
|
let isFirst = true;
|
|
for (const bareSuper of bareSupers) {
|
|
if (isFirst) {
|
|
isFirst = false;
|
|
} else {
|
|
nodes = nodes.map(n => _core.types.cloneNode(n));
|
|
}
|
|
if (!bareSuper.parentPath.isExpressionStatement()) {
|
|
const allNodes = [bareSuper.node, ...nodes.map(n => _core.types.toExpression(n))];
|
|
if (!lastReturnsThis) allNodes.push(_core.types.thisExpression());
|
|
bareSuper.replaceWith(_core.types.sequenceExpression(allNodes));
|
|
} else {
|
|
bareSuper.insertAfter(nodes);
|
|
}
|
|
}
|
|
} else {
|
|
constructor.get("body").unshiftContainer("body", nodes);
|
|
}
|
|
}
|
|
function memoiseComputedKey(keyNode, scope, hint) {
|
|
const isUidReference = _core.types.isIdentifier(keyNode) && scope.hasUid(keyNode.name);
|
|
if (isUidReference) {
|
|
return;
|
|
}
|
|
const isMemoiseAssignment = _core.types.isAssignmentExpression(keyNode, {
|
|
operator: "="
|
|
}) && _core.types.isIdentifier(keyNode.left) && scope.hasUid(keyNode.left.name);
|
|
if (isMemoiseAssignment) {
|
|
return _core.types.cloneNode(keyNode);
|
|
} else {
|
|
const ident = _core.types.identifier(hint);
|
|
scope.push({
|
|
id: ident,
|
|
kind: "let"
|
|
});
|
|
return _core.types.assignmentExpression("=", _core.types.cloneNode(ident), keyNode);
|
|
}
|
|
}
|
|
function extractComputedKeys(path, computedPaths, file) {
|
|
const {
|
|
scope
|
|
} = path;
|
|
const declarations = [];
|
|
const state = {
|
|
classBinding: path.node.id && scope.getBinding(path.node.id.name),
|
|
file
|
|
};
|
|
for (const computedPath of computedPaths) {
|
|
const computedKey = computedPath.get("key");
|
|
if (computedKey.isReferencedIdentifier()) {
|
|
handleClassTDZ(computedKey, state);
|
|
} else {
|
|
computedKey.traverse(classFieldDefinitionEvaluationTDZVisitor, state);
|
|
}
|
|
const computedNode = computedPath.node;
|
|
if (!computedKey.isConstantExpression()) {
|
|
const assignment = memoiseComputedKey(computedKey.node, scope, scope.generateUidBasedOnNode(computedKey.node));
|
|
if (assignment) {
|
|
declarations.push(_core.types.expressionStatement(assignment));
|
|
computedNode.key = _core.types.cloneNode(assignment.left);
|
|
}
|
|
}
|
|
}
|
|
return declarations;
|
|
}
|
|
|
|
//# sourceMappingURL=misc.js.map
|