refactor: remove es-iterator-helpers dependency

Author: MichaelDeBoey

__tests__/src/rules/role-has-required-aria-props-test.js

@@ -10,9 +10,6 @@
 
 import { roles } from 'aria-query';
 import { RuleTester } from 'eslint';
-import iterFrom from 'es-iterator-helpers/Iterator.from';
-import map from 'es-iterator-helpers/Iterator.prototype.map';
-import toArray from 'es-iterator-helpers/Iterator.prototype.toArray';
 
 import parserOptionsMapper from '../../__util__/parserOptionsMapper';
 import parsers from '../../__util__/helpers/parsers';
@@ -42,7 +39,7 @@ const componentsSettings = {
 };
 
 // Create basic test cases using all valid role types.
-const basicValidityTests = toArray(map(iterFrom(roles.keys()), (role) => {
+const basicValidityTests = roles.keys().map((role) => {
   const {
     requiredProps: requiredPropKeyValues,
   } = roles.get(role);
@@ -52,7 +49,7 @@ const basicValidityTests = toArray(map(iterFrom(roles.keys()), (role) => {
   return {
     code: `<div role="${role.toLowerCase()}" ${propChain} />`,
   };
-}));
+});
 
 ruleTester.run('role-has-required-aria-props', rule, {
   valid: parsers.all([].concat(

__tests__/src/rules/role-supports-aria-props-test.js

@@ -12,10 +12,6 @@ import {
   roles,
 } from 'aria-query';
 import { RuleTester } from 'eslint';
-import iterFrom from 'es-iterator-helpers/Iterator.from';
-import filter from 'es-iterator-helpers/Iterator.prototype.filter';
-import map from 'es-iterator-helpers/Iterator.prototype.map';
-import toArray from 'es-iterator-helpers/Iterator.prototype.toArray';
 
 import parserOptionsMapper from '../../__util__/parserOptionsMapper';
 import parsers from '../../__util__/helpers/parsers';
@@ -48,15 +44,14 @@ const componentsSettings = {
   },
 };
 
-const nonAbstractRoles = toArray(filter(iterFrom(roles.keys()), (role) => roles.get(role).abstract === false));
+const nonAbstractRoles = roles.keys().filter((role) => roles.get(role).abstract === false);
 
 const createTests = (rolesNames) => rolesNames.reduce((tests, role) => {
   const {
     props: propKeyValues,
   } = roles.get(role);
   const validPropsForRole = Object.keys(propKeyValues);
-  const invalidPropsForRole = filter(
-    map(iterFrom(aria.keys()), (attribute) => attribute.toLowerCase()),
+  const invalidPropsForRole = aria.keys().map((attribute) => attribute.toLowerCase()).filter(
     (attribute) => validPropsForRole.indexOf(attribute) === -1,
   );
   const normalRole = role.toLowerCase();
@@ -65,10 +60,10 @@ const createTests = (rolesNames) => rolesNames.reduce((tests, role) => {
     tests[0].concat(validPropsForRole.map((prop) => ({
       code: `<div role="${normalRole}" ${prop.toLowerCase()} />`,
     }))),
-    tests[1].concat(toArray(map(invalidPropsForRole, (prop) => ({
+    tests[1].concat(invalidPropsForRole.map((prop) => ({
       code: `<div role="${normalRole}" ${prop.toLowerCase()} />`,
       errors: [errorMessage(prop.toLowerCase(), normalRole, 'div', false)],
-    })))),
+    }))),
   ];
 }, [[], []]);
 

package.json

@@ -81,7 +81,6 @@
     "axe-core": "^4.10.0",
     "axobject-query": "^4.1.0",
     "damerau-levenshtein": "^1.0.8",
-    "es-iterator-helpers": "^1.1.0",
     "hasown": "^2.0.2",
     "jsx-ast-utils": "^3.3.5",
     "language-tags": "^1.0.9",

src/rules/aria-role.js

@@ -9,8 +9,6 @@
 
 import { dom, roles } from 'aria-query';
 import { getLiteralPropValue, propName } from 'jsx-ast-utils';
-import iterFrom from 'es-iterator-helpers/Iterator.from';
-import filter from 'es-iterator-helpers/Iterator.prototype.filter';
 
 import getElementType from '../util/getElementType';
 import { generateObjSchema } from '../util/schemas';
@@ -31,7 +29,7 @@ const schema = generateObjSchema({
   },
 });
 
-const validRoles = new Set(filter(iterFrom(roles.keys()), (role) => roles.get(role).abstract === false));
+const validRoles = new Set(roles.keys().filter((role) => roles.get(role).abstract === false));
 
 export default {
   meta: {

src/rules/interactive-supports-focus.js

@@ -35,8 +35,7 @@ import getTabIndex from '../util/getTabIndex';
 // ----------------------------------------------------------------------------
 
 const schema = generateObjSchema({
-  // TODO: convert to use iterFilter and iterFrom
-  tabbable: enumArraySchema([...roles.keys()].filter((name) => (
+  tabbable: enumArraySchema(roles.keys().filter((name) => (
     !roles.get(name).abstract
     && roles.get(name).superClass.some((klasses) => klasses.includes('widget'))
   ))),

src/rules/role-supports-aria-props.js

@@ -18,8 +18,6 @@ import {
   getPropValue,
   propName,
 } from 'jsx-ast-utils';
-import iterFrom from 'es-iterator-helpers/Iterator.from';
-import filter from 'es-iterator-helpers/Iterator.prototype.filter';
 
 import { generateObjSchema } from '../util/schemas';
 import getElementType from '../util/getElementType';
@@ -64,11 +62,11 @@ export default {
           return;
         }
 
-        // Make sure it has no aria-* properties defined outside of its property set.
+        // Make sure it has no aria-* properties defined outside its property set.
         const {
           props: propKeyValues,
         } = roles.get(roleValue);
-        const invalidAriaPropsForRole = new Set(filter(iterFrom(aria.keys()), (attribute) => !(attribute in propKeyValues)));
+        const invalidAriaPropsForRole = new Set(aria.keys().filter((attribute) => !(attribute in propKeyValues)));
 
         node.attributes.filter((prop) => (
           getPropValue(prop) != null // Ignore the attribute if its value is null or undefined.

src/util/isAbstractRole.js

@@ -3,10 +3,8 @@ import {
   roles,
 } from 'aria-query';
 import { getProp, getLiteralPropValue } from 'jsx-ast-utils';
-import iterFrom from 'es-iterator-helpers/Iterator.from';
-import filter from 'es-iterator-helpers/Iterator.prototype.filter';
 
-const abstractRoles = new Set(filter(iterFrom(roles.keys()), (role) => roles.get(role).abstract));
+const abstractRoles = new Set(roles.keys().filter((role) => roles.get(role).abstract));
 
 const DOMElements = new Set(dom.keys());
 

src/util/isInteractiveElement.js

@@ -12,10 +12,6 @@ import {
   elementAXObjects,
 } from 'axobject-query';
 import flatMap from 'array.prototype.flatmap';
-import iterFrom from 'es-iterator-helpers/Iterator.from';
-// import iterFlatMap from 'es-iterator-helpers/Iterator.prototype.flatMap';
-import filter from 'es-iterator-helpers/Iterator.prototype.filter';
-import some from 'es-iterator-helpers/Iterator.prototype.some';
 
 import attributesComparator from './attributesComparator';
 
@@ -54,21 +50,18 @@ const interactiveRoles = new Set(roleKeys
     'toolbar',
   ));
 
-// TODO: convert to use iterFlatMap and iterFrom
 const interactiveElementRoleSchemas = flatMap(
   elementRoleEntries,
   ([elementSchema, rolesArr]) => (rolesArr.some((role): boolean => interactiveRoles.has(role)) ? [elementSchema] : []),
 );
 
-// TODO: convert to use iterFlatMap and iterFrom
 const nonInteractiveElementRoleSchemas = flatMap(
   elementRoleEntries,
   ([elementSchema, rolesArr]) => (rolesArr.every((role): boolean => nonInteractiveRoles.has(role)) ? [elementSchema] : []),
 );
 
-const interactiveAXObjects = new Set(filter(iterFrom(AXObjects.keys()), (name) => AXObjects.get(name).type === 'widget'));
+const interactiveAXObjects = new Set(AXObjects.keys().filter((name) => AXObjects.get(name).type === 'widget'));
 
-// TODO: convert to use iterFlatMap and iterFrom
 const interactiveElementAXObjectSchemas = flatMap(
   [...elementAXObjects],
   ([elementSchema, AXObjectsArr]) => (AXObjectsArr.every((role): boolean => interactiveAXObjects.has(role)) ? [elementSchema] : []),
@@ -84,18 +77,18 @@ function checkIsInteractiveElement(tagName, attributes): boolean {
 
   // Check in elementRoles for inherent interactive role associations for
   // this element.
-  const isInherentInteractiveElement = some(iterFrom(interactiveElementRoleSchemas), elementSchemaMatcher);
+  const isInherentInteractiveElement = interactiveElementRoleSchemas.some(elementSchemaMatcher);
   if (isInherentInteractiveElement) {
     return true;
   }
   // Check in elementRoles for inherent non-interactive role associations for
   // this element.
-  const isInherentNonInteractiveElement = some(iterFrom(nonInteractiveElementRoleSchemas), elementSchemaMatcher);
+  const isInherentNonInteractiveElement = nonInteractiveElementRoleSchemas.some(elementSchemaMatcher);
   if (isInherentNonInteractiveElement) {
     return false;
   }
   // Check in elementAXObjects for AX Tree associations for this element.
-  const isInteractiveAXElement = some(iterFrom(interactiveElementAXObjectSchemas), elementSchemaMatcher);
+  const isInteractiveAXElement = interactiveElementAXObjectSchemas.some(elementSchemaMatcher);
   if (isInteractiveAXElement) {
     return true;
   }

src/util/isNonInteractiveElement.js

@@ -13,10 +13,6 @@ import {
 } from 'axobject-query';
 import type { Node } from 'ast-types-flow';
 import flatMap from 'array.prototype.flatmap';
-import iterFrom from 'es-iterator-helpers/Iterator.from';
-// import iterFlatMap from 'es-iterator-helpers/Iterator.prototype.flatMap';
-import filter from 'es-iterator-helpers/Iterator.prototype.filter';
-import some from 'es-iterator-helpers/Iterator.prototype.some';
 
 import attributesComparator from './attributesComparator';
 
@@ -61,21 +57,18 @@ const interactiveRoles = new Set(roleKeys
     'toolbar',
   ));
 
-// TODO: convert to use iterFlatMap and iterFrom
 const interactiveElementRoleSchemas = flatMap(
   elementRoleEntries,
   ([elementSchema, rolesArr]) => (rolesArr.some((role): boolean => interactiveRoles.has(role)) ? [elementSchema] : []),
 );
 
-// TODO: convert to use iterFlatMap and iterFrom
 const nonInteractiveElementRoleSchemas = flatMap(
   elementRoleEntries,
   ([elementSchema, rolesArr]) => (rolesArr.every((role): boolean => nonInteractiveRoles.has(role)) ? [elementSchema] : []),
 );
 
-const nonInteractiveAXObjects = new Set(filter(iterFrom(AXObjects.keys()), (name) => ['window', 'structure'].includes(AXObjects.get(name).type)));
+const nonInteractiveAXObjects = new Set(AXObjects.keys().filter((name) => ['window', 'structure'].includes(AXObjects.get(name).type)));
 
-// TODO: convert to use iterFlatMap and iterFrom
 const nonInteractiveElementAXObjectSchemas = flatMap(
   [...elementAXObjects],
   ([elementSchema, AXObjectsArr]) => (AXObjectsArr.every((role): boolean => nonInteractiveAXObjects.has(role)) ? [elementSchema] : []),
@@ -91,18 +84,18 @@ function checkIsNonInteractiveElement(tagName, attributes): boolean {
   }
   // Check in elementRoles for inherent non-interactive role associations for
   // this element.
-  const isInherentNonInteractiveElement = some(iterFrom(nonInteractiveElementRoleSchemas), elementSchemaMatcher);
+  const isInherentNonInteractiveElement = nonInteractiveElementRoleSchemas.some(elementSchemaMatcher);
   if (isInherentNonInteractiveElement) {
     return true;
   }
   // Check in elementRoles for inherent interactive role associations for
   // this element.
-  const isInherentInteractiveElement = some(iterFrom(interactiveElementRoleSchemas), elementSchemaMatcher);
+  const isInherentInteractiveElement = interactiveElementRoleSchemas.some(elementSchemaMatcher);
   if (isInherentInteractiveElement) {
     return false;
   }
   // Check in elementAXObjects for AX Tree associations for this element.
-  const isNonInteractiveAXElement = some(iterFrom(nonInteractiveElementAXObjectSchemas), elementSchemaMatcher);
+  const isNonInteractiveAXElement = nonInteractiveElementAXObjectSchemas.some(elementSchemaMatcher);
   if (isNonInteractiveAXElement) {
     return true;
   }