143 lines
5.7 KiB
Plaintext
143 lines
5.7 KiB
Plaintext
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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const utils_1 = require("@typescript-eslint/utils");
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const eslint_utils_1 = require("@typescript-eslint/utils/eslint-utils");
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const util_1 = require("../util");
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exports.default = (0, util_1.createRule)({
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name: 'space-before-function-paren',
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meta: {
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deprecated: true,
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replacedBy: ['@stylistic/ts/space-before-function-paren'],
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type: 'layout',
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docs: {
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description: 'Enforce consistent spacing before function parenthesis',
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extendsBaseRule: true,
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},
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fixable: 'whitespace',
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schema: [
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{
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oneOf: [
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{
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type: 'string',
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enum: ['always', 'never'],
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},
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{
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type: 'object',
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properties: {
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anonymous: {
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type: 'string',
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enum: ['always', 'never', 'ignore'],
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},
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named: {
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type: 'string',
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enum: ['always', 'never', 'ignore'],
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},
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asyncArrow: {
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type: 'string',
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enum: ['always', 'never', 'ignore'],
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},
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},
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additionalProperties: false,
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},
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],
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},
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],
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messages: {
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unexpected: 'Unexpected space before function parentheses.',
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missing: 'Missing space before function parentheses.',
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},
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},
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defaultOptions: ['always'],
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create(context, [firstOption]) {
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const sourceCode = (0, eslint_utils_1.getSourceCode)(context);
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const baseConfig = typeof firstOption === 'string' ? firstOption : 'always';
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const overrideConfig = typeof firstOption === 'object' ? firstOption : {};
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/**
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* Determines whether a function has a name.
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* @param node The function node.
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* @returns Whether the function has a name.
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*/
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function isNamedFunction(node) {
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if (node.id != null) {
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return true;
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}
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const parent = node.parent;
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return (parent.type === utils_1.AST_NODE_TYPES.MethodDefinition ||
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parent.type === utils_1.AST_NODE_TYPES.TSAbstractMethodDefinition ||
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(parent.type === utils_1.AST_NODE_TYPES.Property &&
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(parent.kind === 'get' || parent.kind === 'set' || parent.method)));
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}
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/**
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* Gets the config for a given function
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* @param node The function node
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*/
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function getConfigForFunction(node) {
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if (node.type === utils_1.AST_NODE_TYPES.ArrowFunctionExpression) {
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// Always ignore non-async functions and arrow functions without parens, e.g. async foo => bar
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if (node.async &&
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(0, util_1.isOpeningParenToken)(sourceCode.getFirstToken(node, { skip: 1 }))) {
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return overrideConfig.asyncArrow ?? baseConfig;
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}
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}
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else if (isNamedFunction(node)) {
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return overrideConfig.named ?? baseConfig;
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// `generator-star-spacing` should warn anonymous generators. E.g. `function* () {}`
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}
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else if (!node.generator) {
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return overrideConfig.anonymous ?? baseConfig;
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}
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return 'ignore';
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}
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/**
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* Checks the parens of a function node
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* @param node A function node
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*/
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function checkFunction(node) {
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const functionConfig = getConfigForFunction(node);
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if (functionConfig === 'ignore') {
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return;
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}
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let leftToken;
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let rightToken;
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if (node.typeParameters) {
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leftToken = sourceCode.getLastToken(node.typeParameters);
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rightToken = sourceCode.getTokenAfter(leftToken);
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}
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else {
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rightToken = sourceCode.getFirstToken(node, util_1.isOpeningParenToken);
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leftToken = sourceCode.getTokenBefore(rightToken);
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}
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// eslint-disable-next-line deprecation/deprecation -- TODO - switch once our min ESLint version is 6.7.0
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const hasSpacing = sourceCode.isSpaceBetweenTokens(leftToken, rightToken);
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if (hasSpacing && functionConfig === 'never') {
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context.report({
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node,
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loc: {
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start: leftToken.loc.end,
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end: rightToken.loc.start,
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},
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messageId: 'unexpected',
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fix: fixer => fixer.removeRange([leftToken.range[1], rightToken.range[0]]),
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});
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}
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else if (!hasSpacing &&
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functionConfig === 'always' &&
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(!node.typeParameters || node.id)) {
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context.report({
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node,
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loc: rightToken.loc,
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messageId: 'missing',
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fix: fixer => fixer.insertTextAfter(leftToken, ' '),
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});
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}
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}
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return {
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ArrowFunctionExpression: checkFunction,
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FunctionDeclaration: checkFunction,
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FunctionExpression: checkFunction,
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TSEmptyBodyFunctionExpression: checkFunction,
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TSDeclareFunction: checkFunction,
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};
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},
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});
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//# sourceMappingURL=space-before-function-paren.js.map
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