90 lines
2.8 KiB
JavaScript
90 lines
2.8 KiB
JavaScript
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"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 PHRASES = {
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ObjectExpression: 'object',
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ArrayExpression: 'array',
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ClassExpression: 'class',
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Literal(node) {
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if ('regex' in node) {
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return 'regex value';
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}
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if ('bigint' in node) {
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return 'bigint value';
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}
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if (node.value == null) {
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return null;
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}
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return `${typeof node.value} value`;
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},
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TemplateLiteral: 'string value'
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};
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exports.default = (0, utils_1.createRule)('no-not-function-handler', {
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meta: {
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docs: {
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description: 'disallow use of not function in event handler',
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category: 'Possible Errors',
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recommended: true
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},
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schema: [],
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messages: {
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unexpected: 'Unexpected {{phrase}} in event handler.'
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},
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type: 'problem'
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},
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create(context) {
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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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function verify(node) {
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if (!node) {
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return;
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}
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const expression = findRootExpression(node);
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if (expression.type !== 'ObjectExpression' &&
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expression.type !== 'ArrayExpression' &&
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expression.type !== 'ClassExpression' &&
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expression.type !== 'Literal' &&
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expression.type !== 'TemplateLiteral') {
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return;
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}
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const phraseValue = PHRASES[expression.type];
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const phrase = typeof phraseValue === 'function' ? phraseValue(expression) : phraseValue;
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if (phrase == null) {
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return;
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}
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context.report({
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node,
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messageId: 'unexpected',
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data: {
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phrase
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}
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});
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}
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return {
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SvelteDirective(node) {
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if (node.kind !== 'EventHandler') {
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return;
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}
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verify(node.expression);
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}
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};
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}
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});
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