82 lines
2.9 KiB
Plaintext
82 lines
2.9 KiB
Plaintext
"use strict";
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
const utils_1 = require("@typescript-eslint/utils");
|
|
const util_1 = require("../util");
|
|
exports.default = (0, util_1.createRule)({
|
|
name: 'no-misused-new',
|
|
meta: {
|
|
type: 'problem',
|
|
docs: {
|
|
description: 'Enforce valid definition of `new` and `constructor`',
|
|
recommended: 'recommended',
|
|
},
|
|
schema: [],
|
|
messages: {
|
|
errorMessageInterface: 'Interfaces cannot be constructed, only classes.',
|
|
errorMessageClass: 'Class cannot have method named `new`.',
|
|
},
|
|
},
|
|
defaultOptions: [],
|
|
create(context) {
|
|
/**
|
|
* @param node type to be inspected.
|
|
* @returns name of simple type or null
|
|
*/
|
|
function getTypeReferenceName(node) {
|
|
if (node) {
|
|
switch (node.type) {
|
|
case utils_1.AST_NODE_TYPES.TSTypeAnnotation:
|
|
return getTypeReferenceName(node.typeAnnotation);
|
|
case utils_1.AST_NODE_TYPES.TSTypeReference:
|
|
return getTypeReferenceName(node.typeName);
|
|
case utils_1.AST_NODE_TYPES.Identifier:
|
|
return node.name;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
/**
|
|
* @param parent parent node.
|
|
* @param returnType type to be compared
|
|
*/
|
|
function isMatchingParentType(parent, returnType) {
|
|
if (parent &&
|
|
'id' in parent &&
|
|
parent.id &&
|
|
parent.id.type === utils_1.AST_NODE_TYPES.Identifier) {
|
|
return getTypeReferenceName(returnType) === parent.id.name;
|
|
}
|
|
return false;
|
|
}
|
|
return {
|
|
'TSInterfaceBody > TSConstructSignatureDeclaration'(node) {
|
|
if (isMatchingParentType(node.parent.parent, node.returnType)) {
|
|
// constructor
|
|
context.report({
|
|
node,
|
|
messageId: 'errorMessageInterface',
|
|
});
|
|
}
|
|
},
|
|
"TSMethodSignature[key.name='constructor']"(node) {
|
|
context.report({
|
|
node,
|
|
messageId: 'errorMessageInterface',
|
|
});
|
|
},
|
|
"ClassBody > MethodDefinition[key.name='new']"(node) {
|
|
if (node.value.type === utils_1.AST_NODE_TYPES.TSEmptyBodyFunctionExpression) {
|
|
if (isMatchingParentType(node.parent.parent, node.value.returnType)) {
|
|
context.report({
|
|
node,
|
|
messageId: 'errorMessageClass',
|
|
});
|
|
}
|
|
}
|
|
},
|
|
};
|
|
},
|
|
});
|
|
//# sourceMappingURL=no-misused-new.js.map |