@typescript-eslint/eslint-plugin
Version:
TypeScript plugin for ESLint
48 lines (47 loc) • 2.2 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.hasOverloadSignatures = hasOverloadSignatures;
const utils_1 = require("@typescript-eslint/utils");
const misc_1 = require("./misc");
/**
* @return `true` if the function or method node has overload signatures.
*/
function hasOverloadSignatures(node, context) {
// `export default function () {}`
if (node.parent.type === utils_1.AST_NODE_TYPES.ExportDefaultDeclaration) {
return node.parent.parent.body.some(member => {
return (member.type === utils_1.AST_NODE_TYPES.ExportDefaultDeclaration &&
member.declaration.type === utils_1.AST_NODE_TYPES.TSDeclareFunction);
});
}
// `export function f() {}`
if (node.parent.type === utils_1.AST_NODE_TYPES.ExportNamedDeclaration) {
return node.parent.parent.body.some(member => {
return (member.type === utils_1.AST_NODE_TYPES.ExportNamedDeclaration &&
member.declaration?.type === utils_1.AST_NODE_TYPES.TSDeclareFunction &&
getFunctionDeclarationName(member.declaration, context) ===
getFunctionDeclarationName(node, context));
});
}
// either:
// - `function f() {}`
// - `class T { foo() {} }`
const nodeKey = getFunctionDeclarationName(node, context);
return node.parent.body.some(member => {
return ((member.type === utils_1.AST_NODE_TYPES.TSDeclareFunction ||
(member.type === utils_1.AST_NODE_TYPES.MethodDefinition &&
member.value.body == null)) &&
nodeKey === getFunctionDeclarationName(member, context));
});
}
function getFunctionDeclarationName(node, context) {
if (node.type === utils_1.AST_NODE_TYPES.FunctionDeclaration ||
node.type === utils_1.AST_NODE_TYPES.TSDeclareFunction) {
// For a `FunctionDeclaration` or `TSDeclareFunction` this may be `null` if
// and only if the parent is an `ExportDefaultDeclaration`.
//
// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
return node.id.name;
}
return (0, misc_1.getStaticMemberAccessValue)(node, context);
}