78 lines
3.0 KiB
JavaScript
78 lines
3.0 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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const utils_1 = require("../utils");
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const ast_utils_1 = require("../utils/ast-utils");
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const compat_1 = require("../utils/compat");
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exports.default = (0, utils_1.createRule)('no-dynamic-slot-name', {
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meta: {
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docs: {
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description: 'disallow dynamic slot name',
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category: 'Possible Errors',
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recommended: true
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},
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fixable: 'code',
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schema: [],
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messages: {
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unexpected: '`<slot>` name cannot be dynamic.',
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requireValue: '`<slot>` name requires a value.'
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},
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type: 'problem'
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},
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create(context) {
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const sourceCode = (0, compat_1.getSourceCode)(context);
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return {
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"SvelteElement[name.name='slot'] > SvelteStartTag.startTag > SvelteAttribute[key.name='name']"(node) {
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if (node.value.length === 0) {
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context.report({
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node,
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messageId: 'requireValue'
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});
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return;
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}
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for (const vNode of node.value) {
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if (vNode.type === 'SvelteMustacheTag') {
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context.report({
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node: vNode,
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messageId: 'unexpected',
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fix(fixer) {
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const text = getStaticText(vNode.expression);
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if (text == null) {
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return null;
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}
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if (node.value.length === 1) {
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const range = (0, ast_utils_1.getAttributeValueQuoteAndRange)(node, sourceCode).range;
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return fixer.replaceTextRange(range, `"${text}"`);
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}
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const range = vNode.range;
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return fixer.replaceTextRange(range, text);
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}
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});
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}
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}
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}
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};
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function getStaticText(node) {
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const expr = findRootExpression(node);
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return (0, ast_utils_1.getStringIfConstant)(expr);
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}
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function findRootExpression(node, already = new Set()) {
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if (node.type !== 'Identifier' || already.has(node)) {
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return node;
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}
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already.add(node);
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const variable = (0, ast_utils_1.findVariable)(context, node);
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if (!variable || variable.defs.length !== 1) {
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return node;
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}
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const def = variable.defs[0];
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if (def.type === 'Variable') {
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if (def.parent.kind === 'const' && def.node.init) {
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const init = def.node.init;
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return findRootExpression(init, already);
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}
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}
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return node;
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}
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}
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});
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