no-implicit-any-catch.js
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"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
const util = __importStar(require("../util"));
const experimental_utils_1 = require("@typescript-eslint/experimental-utils");
exports.default = util.createRule({
name: 'no-implicit-any-catch',
meta: {
type: 'suggestion',
docs: {
description: 'Disallow usage of the implicit `any` type in catch clauses',
category: 'Best Practices',
recommended: false,
suggestion: true,
},
fixable: 'code',
messages: {
implicitAnyInCatch: 'Implicit any in catch clause',
explicitAnyInCatch: 'Explicit any in catch clause',
suggestExplicitUnknown: 'Use `unknown` instead, this will force you to explicitly, and safely assert the type is correct.',
},
schema: [
{
type: 'object',
additionalProperties: false,
properties: {
allowExplicitAny: {
type: 'boolean',
},
},
},
],
},
defaultOptions: [
{
allowExplicitAny: false,
},
],
create(context, [{ allowExplicitAny }]) {
return {
CatchClause(node) {
if (!node.param) {
return; // ignore catch without variable
}
if (!node.param.typeAnnotation) {
context.report({
node,
messageId: 'implicitAnyInCatch',
suggest: [
{
messageId: 'suggestExplicitUnknown',
fix(fixer) {
return fixer.insertTextAfter(node.param, ': unknown');
},
},
],
});
}
else if (!allowExplicitAny &&
node.param.typeAnnotation.typeAnnotation.type ===
experimental_utils_1.AST_NODE_TYPES.TSAnyKeyword) {
context.report({
node,
messageId: 'explicitAnyInCatch',
suggest: [
{
messageId: 'suggestExplicitUnknown',
fix(fixer) {
return fixer.replaceText(node.param.typeAnnotation, ': unknown');
},
},
],
});
}
},
};
},
});
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