127 lines
4.2 KiB
Plaintext
127 lines
4.2 KiB
Plaintext
'use strict';
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var utils = require('../utils.js');
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var utils$1 = require('@typescript-eslint/utils');
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var astUtils = require('@typescript-eslint/utils/ast-utils');
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require('eslint-visitor-keys');
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require('espree');
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require('estraverse');
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var spaceBeforeFunctionParen = utils.createRule({
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name: "space-before-function-paren",
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package: "ts",
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meta: {
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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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},
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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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unexpectedSpace: "Unexpected space before function parentheses.",
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missingSpace: "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 = context.sourceCode;
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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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function isNamedFunction(node) {
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if (node.id != null)
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return true;
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const parent = node.parent;
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return parent.type === utils$1.AST_NODE_TYPES.MethodDefinition || parent.type === utils$1.AST_NODE_TYPES.TSAbstractMethodDefinition || parent.type === utils$1.AST_NODE_TYPES.Property && (parent.kind === "get" || parent.kind === "set" || parent.method);
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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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if (node.async && astUtils.isOpeningParenToken(sourceCode.getFirstToken(node, { skip: 1 }))) {
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return overrideConfig.asyncArrow ?? baseConfig;
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}
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} else if (isNamedFunction(node)) {
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return overrideConfig.named ?? baseConfig;
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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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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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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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} else {
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rightToken = sourceCode.getFirstToken(node, astUtils.isOpeningParenToken);
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leftToken = sourceCode.getTokenBefore(rightToken);
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}
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const hasSpacing = sourceCode.isSpaceBetween(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: "unexpectedSpace",
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fix: (fixer) => {
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const comments = sourceCode.getCommentsBefore(rightToken);
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if (comments.some((comment) => comment.type === "Line"))
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return null;
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return fixer.replaceTextRange(
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[leftToken.range[1], rightToken.range[0]],
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comments.reduce((text, comment) => text + sourceCode.getText(comment), "")
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);
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}
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});
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} else if (!hasSpacing && functionConfig === "always" && (!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: "missingSpace",
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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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module.exports = spaceBeforeFunctionParen;
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