66 lines
2.6 KiB
Plaintext
66 lines
2.6 KiB
Plaintext
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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const util_1 = require("../util");
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exports.default = (0, util_1.createRule)({
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name: 'no-non-null-asserted-optional-chain',
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meta: {
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type: 'problem',
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docs: {
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description: 'Disallow non-null assertions after an optional chain expression',
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recommended: 'recommended',
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},
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hasSuggestions: true,
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messages: {
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noNonNullOptionalChain: 'Optional chain expressions can return undefined by design - using a non-null assertion is unsafe and wrong.',
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suggestRemovingNonNull: 'You should remove the non-null assertion.',
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},
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schema: [],
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},
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defaultOptions: [],
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create(context) {
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return {
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// non-nulling a wrapped chain will scrub all nulls introduced by the chain
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// (x?.y)!
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// (x?.())!
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'TSNonNullExpression > ChainExpression'(node) {
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// selector guarantees this assertion
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const parent = node.parent;
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context.report({
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node,
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messageId: 'noNonNullOptionalChain',
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// use a suggestion instead of a fixer, because this can obviously break type checks
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suggest: [
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{
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messageId: 'suggestRemovingNonNull',
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fix(fixer) {
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return fixer.removeRange([
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parent.range[1] - 1,
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parent.range[1],
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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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// non-nulling at the end of a chain will scrub all nulls introduced by the chain
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// x?.y!
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// x?.()!
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'ChainExpression > TSNonNullExpression'(node) {
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context.report({
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node,
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messageId: 'noNonNullOptionalChain',
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// use a suggestion instead of a fixer, because this can obviously break type checks
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suggest: [
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{
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messageId: 'suggestRemovingNonNull',
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fix(fixer) {
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return fixer.removeRange([node.range[1] - 1, node.range[1]]);
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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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},
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});
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//# sourceMappingURL=no-non-null-asserted-optional-chain.js.map
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