Merge pull request #118 from Xvezda/feature/constructor-type-narrowing

Support type narrowing for constructor

Author: Xvezda

src/rules/check-throws-tag-type.js

@@ -207,7 +207,8 @@ module.exports = createRule({
       if (!callerDeclaration) return;
 
       const calleeDeclaration =
-        node.type === AST_NODE_TYPES.CallExpression
+        (node.type === AST_NODE_TYPES.CallExpression ||
+         node.type === AST_NODE_TYPES.NewExpression)
           ? getCallSignatureDeclaration(services, node)
           : node.parent?.type === AST_NODE_TYPES.CallExpression
           ? getCallSignatureDeclaration(services, node.parent)

src/rules/no-undocumented-throws.js

@@ -130,7 +130,8 @@ module.exports = createRule({
       if (!callerDeclaration) return;
 
       const calleeDeclaration =
-        node.type === AST_NODE_TYPES.CallExpression
+        (node.type === AST_NODE_TYPES.CallExpression ||
+         node.type === AST_NODE_TYPES.NewExpression)
           ? getCallSignatureDeclaration(services, node)
           : node.parent?.type === AST_NODE_TYPES.CallExpression
           ? getCallSignatureDeclaration(services, node.parent)

src/utils.js

@@ -252,7 +252,7 @@ const getDeclarationsByNode = (services, node) => {
  *
  * @public
  * @param {import('@typescript-eslint/utils').ParserServicesWithTypeInformation} services
- * @param {import('@typescript-eslint/utils').TSESTree.CallExpression} node
+ * @param {import('@typescript-eslint/utils').TSESTree.CallExpression | import('@typescript-eslint/utils').TSESTree.NewExpression} node
  * @return {import('typescript').Declaration | null}
  */
 const getCallSignatureDeclaration = (services, node) => {