svelte
Version:
Cybernetically enhanced web apps
62 lines (55 loc) • 1.84 kB
JavaScript
/** @import { ExportNamedDeclaration, Identifier, Node } from 'estree' */
/** @import { Binding } from '#compiler' */
/** @import { Context } from '../types' */
/** @import { Scope } from '../../scope' */
import * as e from '../../../errors.js';
import { extract_identifiers } from '../../../utils/ast.js';
/**
* @param {ExportNamedDeclaration} node
* @param {Context} context
*/
export function ExportNamedDeclaration(node, context) {
// visit children, so bindings are correctly initialised
context.next();
if (node.declaration?.type === 'VariableDeclaration') {
// in runes mode, forbid `export let`
if (
context.state.analysis.runes &&
context.state.ast_type === 'instance' &&
node.declaration.kind === 'let'
) {
e.legacy_export_invalid(node);
}
for (const declarator of node.declaration.declarations) {
for (const id of extract_identifiers(declarator.id)) {
const binding = context.state.scope.get(id.name);
if (!binding) continue;
if (binding.kind === 'derived') {
e.derived_invalid_export(node);
}
if ((binding.kind === 'state' || binding.kind === 'raw_state') && binding.reassigned) {
e.state_invalid_export(node);
}
}
}
}
if (context.state.analysis.runes) {
if (node.declaration && context.state.ast_type === 'instance') {
if (
node.declaration.type === 'FunctionDeclaration' ||
node.declaration.type === 'ClassDeclaration'
) {
context.state.analysis.exports.push({
name: /** @type {Identifier} */ (node.declaration.id).name,
alias: null
});
} else if (node.declaration.kind === 'const') {
for (const declarator of node.declaration.declarations) {
for (const node of extract_identifiers(declarator.id)) {
context.state.analysis.exports.push({ name: node.name, alias: null });
}
}
}
}
}
}