138 lines
5.5 KiB
Plaintext
138 lines
5.5 KiB
Plaintext
"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 util_1 = require("../util");
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exports.default = (0, util_1.createRule)({
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name: 'adjacent-overload-signatures',
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meta: {
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type: 'suggestion',
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docs: {
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description: 'Require that function overload signatures be consecutive',
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recommended: 'stylistic',
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},
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schema: [],
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messages: {
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adjacentSignature: 'All {{name}} signatures should be adjacent.',
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},
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},
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defaultOptions: [],
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create(context) {
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/**
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* Gets the name and attribute of the member being processed.
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* @param member the member being processed.
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* @returns the name and attribute of the member or null if it's a member not relevant to the rule.
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*/
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function getMemberMethod(member) {
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const isStatic = 'static' in member && !!member.static;
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switch (member.type) {
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case utils_1.AST_NODE_TYPES.ExportDefaultDeclaration:
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case utils_1.AST_NODE_TYPES.ExportNamedDeclaration: {
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// export statements (e.g. export { a };)
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// have no declarations, so ignore them
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if (!member.declaration) {
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return null;
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}
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return getMemberMethod(member.declaration);
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}
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case utils_1.AST_NODE_TYPES.TSDeclareFunction:
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case utils_1.AST_NODE_TYPES.FunctionDeclaration: {
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const name = member.id?.name ?? null;
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if (name == null) {
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return null;
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}
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return {
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name,
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static: isStatic,
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callSignature: false,
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type: util_1.MemberNameType.Normal,
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};
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}
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case utils_1.AST_NODE_TYPES.TSMethodSignature:
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return {
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...(0, util_1.getNameFromMember)(member, context.sourceCode),
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static: isStatic,
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callSignature: false,
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};
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case utils_1.AST_NODE_TYPES.TSCallSignatureDeclaration:
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return {
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name: 'call',
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static: isStatic,
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callSignature: true,
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type: util_1.MemberNameType.Normal,
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};
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case utils_1.AST_NODE_TYPES.TSConstructSignatureDeclaration:
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return {
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name: 'new',
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static: isStatic,
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callSignature: false,
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type: util_1.MemberNameType.Normal,
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};
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case utils_1.AST_NODE_TYPES.MethodDefinition:
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return {
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...(0, util_1.getNameFromMember)(member, context.sourceCode),
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static: isStatic,
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callSignature: false,
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};
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}
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return null;
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}
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function isSameMethod(method1, method2) {
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return (!!method2 &&
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method1.name === method2.name &&
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method1.static === method2.static &&
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method1.callSignature === method2.callSignature &&
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method1.type === method2.type);
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}
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function getMembers(node) {
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switch (node.type) {
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case utils_1.AST_NODE_TYPES.ClassBody:
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case utils_1.AST_NODE_TYPES.Program:
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case utils_1.AST_NODE_TYPES.TSModuleBlock:
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case utils_1.AST_NODE_TYPES.TSInterfaceBody:
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case utils_1.AST_NODE_TYPES.BlockStatement:
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return node.body;
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case utils_1.AST_NODE_TYPES.TSTypeLiteral:
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return node.members;
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}
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}
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/**
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* Check the body for overload methods.
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* @param node the body to be inspected.
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*/
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function checkBodyForOverloadMethods(node) {
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const members = getMembers(node);
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let lastMethod = null;
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const seenMethods = [];
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members.forEach(member => {
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const method = getMemberMethod(member);
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if (method == null) {
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lastMethod = null;
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return;
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}
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const index = seenMethods.findIndex(seenMethod => isSameMethod(method, seenMethod));
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if (index > -1 && !isSameMethod(method, lastMethod)) {
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context.report({
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node: member,
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messageId: 'adjacentSignature',
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data: {
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name: `${method.static ? 'static ' : ''}${method.name}`,
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},
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});
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}
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else if (index === -1) {
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seenMethods.push(method);
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}
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lastMethod = method;
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});
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}
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return {
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ClassBody: checkBodyForOverloadMethods,
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Program: checkBodyForOverloadMethods,
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TSModuleBlock: checkBodyForOverloadMethods,
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TSTypeLiteral: checkBodyForOverloadMethods,
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TSInterfaceBody: checkBodyForOverloadMethods,
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BlockStatement: checkBodyForOverloadMethods,
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};
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},
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});
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//# sourceMappingURL=adjacent-overload-signatures.js.map |