Bump codecov from 3.5.0 to 3.8.3

Bumps [codecov](https://github.com/codecov/codecov-node) from 3.5.0 to 3.8.3.
- [Release notes](https://github.com/codecov/codecov-node/releases)
- [Changelog](https://github.com/codecov/codecov-node/blob/master/CHANGELOG.md)
- [Commits](https://github.com/codecov/codecov-node/commits/v3.8.3)

---
updated-dependencies:
- dependency-name: codecov
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

.size-snapshot.json

@@ -1,36 +1,36 @@
 {
   "dist/react-fiber-traverse.cjs.development.js": {
-    "bundled": 9674,
+    "bundled": 19424,
-    "minified": 4533,
+    "minified": 8388,
-    "gzipped": 1335
+    "gzipped": 2612
   },
   "dist/react-fiber-traverse.cjs.production.js": {
-    "bundled": 9674,
+    "bundled": 19424,
-    "minified": 4533,
+    "minified": 8388,
-    "gzipped": 1335
+    "gzipped": 2612
   },
   "dist/react-fiber-traverse.esm.js": {
-    "bundled": 9312,
+    "bundled": 19124,
-    "minified": 4229,
+    "minified": 8112,
-    "gzipped": 1245,
+    "gzipped": 2537,
     "treeshaked": {
       "rollup": {
-        "code": 49,
+        "code": 31,
-        "import_statements": 49
+        "import_statements": 31
       },
       "webpack": {
-        "code": 1066
+        "code": 1048
       }
     }
   },
   "dist/react-fiber-traverse.umd.development.js": {
-    "bundled": 34862,
+    "bundled": 34569,
-    "minified": 9669,
+    "minified": 11581,
-    "gzipped": 3394
+    "gzipped": 4230
   },
   "dist/react-fiber-traverse.umd.production.js": {
-    "bundled": 34862,
+    "bundled": 34569,
-    "minified": 9669,
+    "minified": 11581,
-    "gzipped": 3394
+    "gzipped": 4230
   }
 }

.vscode/settings.json

@@ -13,5 +13,6 @@
         "javascriptreact",
         "typescript",
         "typescriptreact"
-    ]
+    ],
+    "typescript.tsdk": "node_modules\\typescript\\lib"
 }

TODO.md

@@ -6,6 +6,7 @@
 4. Build some demo
 
 5. Add `findAllNodes` helpers which searches all usages of the components - by name or class
+6. Allow using all methods without explicit root node. Find automatically, if not provided.
 
 6. Fix getRootFiberNodeFromDOM and related helpers -
    - .\_internalRoot is not present is 16.0.0 but present in 16.9.0
@@ -14,3 +15,14 @@
 
 7. Make it work with older React versions
 8. Make it work with non React-DOM renderers
+
+9. Add test - traverseGenerator - siblings were traversed earlier, not now. Check input config.
+
+10. Find node by CSS (query language) - Make it work for Class/Function reference also
+11. Allow easy way to continue FiberNode select with CSS selector for dom node (handling Fragments)
+
+12. Helper and filter by props and state
+
+13. Fix es5, downLevelIteration with generator iteration
+14. Tests for match
+15. **Catch throw in generator**

docs/README.md

@@ -80,6 +80,36 @@ For the minified production version, make sure you have already included:
 - [`React`](https://unpkg.com/react/umd/react.production.min.js)
 - [`ReactDOM`](https://unpkg.com/react-dom/umd/react-dom.production.min.js)
 
+## Overview
+
+This package contains few utility functions which operate over react-fiber tree.
+
+Overall characteristics are:
+1. Only read-only operations
+2. Support inversion of control
+
+There are few categories of helpers, each with their variations:
+1. Find node(s)
+2. Traverse node
+3. Others - Check node type, find root node, etc.
+
+Little more info is present in docs section.
+
+## Concerns and improvements
+
+Currently, it assumes that nodes are created by `react 16.3+` with appropriate `react-dom`.
+
+Because fiber nodes are internal to react and are supported by multiple renderers, this is an incorrect assumption to make. It should:
+1. support diff versions of react (which have fiber node, but slight variations of it)
+2. be renderer-agnostic (say, support react-fs-renderer) but with extra helpers for react-dom.
+3. heavily tested with all these variations (to know when internals have changed).
+
+## Docs
+
+Docs are sparse at the moment. I plan on adding them soon.
+
+Till then, the auto-generated (typedoc) docs available in [docs folder](./docs/globals.md) might be of some help.
+
 ## License
 
 MIT

docs/globals.md

@@ -10,6 +10,7 @@
 
 * ["findNode"](modules/_findnode_.md)
 * ["index"](modules/_index_.md)
+* ["match"](modules/_match_.md)
 * ["mocked-types/index"](modules/_mocked_types_index_.md)
 * ["traverse"](modules/_traverse_.md)
 * ["utils"](modules/_utils_.md)

docs/interfaces/_mocked_types_index_.fibernodedomcontainer.md

@@ -347,7 +347,7 @@ ___
 
 • **_reactRootContainer**: *object*
 
-*Defined in [mocked-types/index.ts:4](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L4)*
+*Defined in [mocked-types/index.ts:4](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L4)*
 
 #### Type declaration:
 

docs/interfaces/_mocked_types_index_.fibernodeforcomponentclass.md

@@ -24,7 +24,7 @@
 
 • **child**: *[FiberNode](../modules/_mocked_types_index_.md#fibernode) | null*
 
-*Defined in [mocked-types/index.ts:28](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L28)*
+*Defined in [mocked-types/index.ts:28](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L28)*
 
 ___
 
@@ -32,7 +32,7 @@ ___
 
 • **elementType**: *`ComponentClass`*
 
-*Defined in [mocked-types/index.ts:31](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L31)*
+*Defined in [mocked-types/index.ts:31](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L31)*
 
 ___
 
@@ -40,7 +40,7 @@ ___
 
 • **sibling**: *[FiberNode](../modules/_mocked_types_index_.md#fibernode) | null*
 
-*Defined in [mocked-types/index.ts:29](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L29)*
+*Defined in [mocked-types/index.ts:29](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L29)*
 
 ___
 
@@ -48,7 +48,7 @@ ___
 
 • **stateNode**: *`Component`*
 
-*Defined in [mocked-types/index.ts:34](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L34)*
+*Defined in [mocked-types/index.ts:34](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L34)*
 
 ___
 
@@ -56,4 +56,4 @@ ___
 
 • **type**: *`ComponentClass`*
 
-*Defined in [mocked-types/index.ts:32](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L32)*
+*Defined in [mocked-types/index.ts:32](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L32)*

docs/interfaces/_mocked_types_index_.fibernodeforfunctioncomponent.md

@@ -24,7 +24,7 @@
 
 • **child**: *[FiberNode](../modules/_mocked_types_index_.md#fibernode) | null*
 
-*Defined in [mocked-types/index.ts:18](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L18)*
+*Defined in [mocked-types/index.ts:18](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L18)*
 
 ___
 
@@ -32,7 +32,7 @@ ___
 
 • **elementType**: *`FunctionComponent`*
 
-*Defined in [mocked-types/index.ts:21](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L21)*
+*Defined in [mocked-types/index.ts:21](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L21)*
 
 ___
 
@@ -40,7 +40,7 @@ ___
 
 • **sibling**: *[FiberNode](../modules/_mocked_types_index_.md#fibernode) | null*
 
-*Defined in [mocked-types/index.ts:19](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L19)*
+*Defined in [mocked-types/index.ts:19](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L19)*
 
 ___
 
@@ -48,7 +48,7 @@ ___
 
 • **stateNode**: *null*
 
-*Defined in [mocked-types/index.ts:24](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L24)*
+*Defined in [mocked-types/index.ts:24](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L24)*
 
 ___
 
@@ -56,4 +56,4 @@ ___
 
 • **type**: *`FunctionComponent`*
 
-*Defined in [mocked-types/index.ts:22](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L22)*
+*Defined in [mocked-types/index.ts:22](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L22)*

docs/interfaces/_mocked_types_index_.fibernodeforinstrinsicelement.md

@@ -24,9 +24,9 @@
 
 • **child**: *[FiberNode](../modules/_mocked_types_index_.md#fibernode) | null*
 
-*Defined in [mocked-types/index.ts:38](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L38)*
+*Defined in [mocked-types/index.ts:38](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L38)*
 
-*Defined in [mocked-types/index.ts:48](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L48)*
+*Defined in [mocked-types/index.ts:48](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L48)*
 
 ___
 
@@ -34,9 +34,9 @@ ___
 
 • **elementType**: *keyof IntrinsicElements*
 
-*Defined in [mocked-types/index.ts:41](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L41)*
+*Defined in [mocked-types/index.ts:41](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L41)*
 
-*Defined in [mocked-types/index.ts:51](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L51)*
+*Defined in [mocked-types/index.ts:51](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L51)*
 
 ___
 
@@ -44,9 +44,9 @@ ___
 
 • **sibling**: *[FiberNode](../modules/_mocked_types_index_.md#fibernode) | null*
 
-*Defined in [mocked-types/index.ts:39](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L39)*
+*Defined in [mocked-types/index.ts:39](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L39)*
 
-*Defined in [mocked-types/index.ts:49](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L49)*
+*Defined in [mocked-types/index.ts:49](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L49)*
 
 ___
 
@@ -54,9 +54,9 @@ ___
 
 • **stateNode**: *`HTMLElement`*
 
-*Defined in [mocked-types/index.ts:44](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L44)*
+*Defined in [mocked-types/index.ts:44](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L44)*
 
-*Defined in [mocked-types/index.ts:54](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L54)*
+*Defined in [mocked-types/index.ts:54](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L54)*
 
 ___
 
@@ -64,6 +64,6 @@ ___
 
 • **type**: *keyof IntrinsicElements*
 
-*Defined in [mocked-types/index.ts:42](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L42)*
+*Defined in [mocked-types/index.ts:42](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L42)*
 
-*Defined in [mocked-types/index.ts:52](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L52)*
+*Defined in [mocked-types/index.ts:52](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L52)*

docs/interfaces/_mocked_types_index_.fibernodefortextnode.md

@@ -24,7 +24,7 @@
 
 • **child**: *null*
 
-*Defined in [mocked-types/index.ts:58](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L58)*
+*Defined in [mocked-types/index.ts:58](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L58)*
 
 ___
 
@@ -32,7 +32,7 @@ ___
 
 • **elementType**: *null*
 
-*Defined in [mocked-types/index.ts:61](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L61)*
+*Defined in [mocked-types/index.ts:61](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L61)*
 
 ___
 
@@ -40,7 +40,7 @@ ___
 
 • **sibling**: *[FiberNode](../modules/_mocked_types_index_.md#fibernode) | null*
 
-*Defined in [mocked-types/index.ts:59](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L59)*
+*Defined in [mocked-types/index.ts:59](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L59)*
 
 ___
 
@@ -48,7 +48,7 @@ ___
 
 • **stateNode**: *`Text`*
 
-*Defined in [mocked-types/index.ts:64](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L64)*
+*Defined in [mocked-types/index.ts:64](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L64)*
 
 ___
 
@@ -56,4 +56,4 @@ ___
 
 • **type**: *null*
 
-*Defined in [mocked-types/index.ts:62](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L62)*
+*Defined in [mocked-types/index.ts:62](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L62)*

docs/interfaces/_traverse_.ttraverseconfig.md

@@ -0,0 +1,41 @@
+> **[react-fiber-traverse](../README.md)**
+
+[Globals](../globals.md) / ["traverse"](../modules/_traverse_.md) / [TTraverseConfig](_traverse_.ttraverseconfig.md) /
+
+# Interface: TTraverseConfig
+
+## Hierarchy
+
+* **TTraverseConfig**
+
+## Index
+
+### Properties
+
+* [order](_traverse_.ttraverseconfig.md#optional-order)
+* [skipSelfForStartNode](_traverse_.ttraverseconfig.md#optional-skipselfforstartnode)
+* [skipSiblingForStartNode](_traverse_.ttraverseconfig.md#optional-skipsiblingforstartnode)
+
+## Properties
+
+### `Optional` order
+
+• **order**? : *`Array<"self" | "child" | "sibling">`*
+
+*Defined in [traverse.ts:5](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/traverse.ts#L5)*
+
+___
+
+### `Optional` skipSelfForStartNode
+
+• **skipSelfForStartNode**? : *undefined | false | true*
+
+*Defined in [traverse.ts:7](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/traverse.ts#L7)*
+
+___
+
+### `Optional` skipSiblingForStartNode
+
+• **skipSiblingForStartNode**? : *undefined | false | true*
+
+*Defined in [traverse.ts:6](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/traverse.ts#L6)*

docs/modules/_findnode_.md

@@ -8,34 +8,19 @@
 
 ### Functions
 
+* [findAllNodesByComponentName](_findnode_.md#findallnodesbycomponentname)
 * [findNodeByComponent](_findnode_.md#findnodebycomponent)
 * [findNodeByComponentName](_findnode_.md#findnodebycomponentname)
 * [findNodeByComponentRef](_findnode_.md#findnodebycomponentref)
+* [findNodesByComponentName](_findnode_.md#findnodesbycomponentname)
 
 ## Functions
 
-###  findNodeByComponent
+###  findAllNodesByComponentName
 
-▸ **findNodeByComponent**(`node`: [FiberNode](_mocked_types_index_.md#fibernode) | null, `expectedClassOrFunction`: `React.ComponentType`): *[FiberNode](_mocked_types_index_.md#fibernode) | null*
+▸ **findAllNodesByComponentName**(`node`: [FiberNode](_mocked_types_index_.md#fibernode) | null, `expectedName`: string, `traverseConfig?`: [TTraverseConfig](../interfaces/_traverse_.ttraverseconfig.md)): *`Array<FiberNode>`*
 
-*Defined in [findNode.ts:32](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/findNode.ts#L32)*
+*Defined in [findNode.ts:58](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/findNode.ts#L58)*
-
-**Parameters:**
-
-Name | Type |
------- | ------ |
-`node` | [FiberNode](_mocked_types_index_.md#fibernode) \| null |
-`expectedClassOrFunction` | `React.ComponentType` |
-
-**Returns:** *[FiberNode](_mocked_types_index_.md#fibernode) | null*
-
-___
-
-###  findNodeByComponentName
-
-▸ **findNodeByComponentName**(`node`: [FiberNode](_mocked_types_index_.md#fibernode) | null, `expectedName`: string): *[FiberNode](_mocked_types_index_.md#fibernode) | null*
-
-*Defined in [findNode.ts:4](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/findNode.ts#L4)*
 
 **Parameters:**
 
@@ -43,6 +28,74 @@ Name | Type |
 ------ | ------ |
 `node` | [FiberNode](_mocked_types_index_.md#fibernode) \| null |
 `expectedName` | string |
+`traverseConfig?` | [TTraverseConfig](../interfaces/_traverse_.ttraverseconfig.md) |
+
+**Returns:** *`Array<FiberNode>`*
+
+___
+
+###  findNodeByComponent
+
+▸ **findNodeByComponent**(`node`: [FiberNode](_mocked_types_index_.md#fibernode) | null, `expectedClassOrFunction`: `React.ComponentType`, `traverseConfig?`: [TTraverseConfig](../interfaces/_traverse_.ttraverseconfig.md)): *[FiberNode](_mocked_types_index_.md#fibernode) | null*
+
+*Defined in [findNode.ts:84](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/findNode.ts#L84)*
+
+Find node by component (i.e. class or function by reference), till first match.
+
+Matches against class and function by reference.
+Returns null if no match is found.
+
+**`example`** 
+```js
+// returns FiberNode for first usage of AccordionMenu
+findNodeByComponent(startNode, AccordionMenu);
+```
+
+**`note`** Medium chance of collision, medium data access needed.
+This is safer than findNodeByComponentName, as different components with the same name won't collide.
+But, two instances of the same component will still collide.
+Needs access to component class or function.
+
+**Parameters:**
+
+Name | Type |
+------ | ------ |
+`node` | [FiberNode](_mocked_types_index_.md#fibernode) \| null |
+`expectedClassOrFunction` | `React.ComponentType` |
+`traverseConfig?` | [TTraverseConfig](../interfaces/_traverse_.ttraverseconfig.md) |
+
+**Returns:** *[FiberNode](_mocked_types_index_.md#fibernode) | null*
+
+___
+
+###  findNodeByComponentName
+
+▸ **findNodeByComponentName**(`node`: [FiberNode](_mocked_types_index_.md#fibernode) | null, `expectedName`: string, `traverseConfig?`: [TTraverseConfig](../interfaces/_traverse_.ttraverseconfig.md)): *[FiberNode](_mocked_types_index_.md#fibernode) | null*
+
+*Defined in [findNode.ts:22](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/findNode.ts#L22)*
+
+Find node by component name, till first match.
+
+Matches against class and function name, doesn't match html-like nodes.
+Returns null if no match is found.
+
+**`example`** 
+```js
+// returns FiberNode for first usage of 'AccordionMenu'
+findNodeByComponentName(startNode, "AccordionMenu");
+```
+
+**`note`** Highest chance of collision, least data access needed.
+Different components with same name will collide.
+Needs access to component name.
+
+**Parameters:**
+
+Name | Type |
+------ | ------ |
+`node` | [FiberNode](_mocked_types_index_.md#fibernode) \| null |
+`expectedName` | string |
+`traverseConfig?` | [TTraverseConfig](../interfaces/_traverse_.ttraverseconfig.md) |
 
 **Returns:** *[FiberNode](_mocked_types_index_.md#fibernode) | null*
 
@@ -50,9 +103,23 @@ ___
 
 ###  findNodeByComponentRef
 
-▸ **findNodeByComponentRef**(`node`: [FiberNode](_mocked_types_index_.md#fibernode) | null, `expectedClassInstance`: `Component`): *[FiberNode](_mocked_types_index_.md#fibernode) | null*
+▸ **findNodeByComponentRef**(`node`: [FiberNode](_mocked_types_index_.md#fibernode) | null, `expectedClassInstance`: `Component`, `traverseConfig?`: [TTraverseConfig](../interfaces/_traverse_.ttraverseconfig.md)): *[FiberNode](_mocked_types_index_.md#fibernode) | null*
 
-*Defined in [findNode.ts:63](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/findNode.ts#L63)*
+*Defined in [findNode.ts:122](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/findNode.ts#L122)*
+
+Find node by component instance ref, till first match.
+
+Matches against class instances by reference.
+Returns null if no match is found.
+
+**`example`** 
+```js
+// menuRef=createRef(); <AccordionMenu ref={menuRef}>
+findNodeByComponentRef(startNode, menuRef.current);
+```
+
+**`note`** Least chance of collision, maximum data access needed.
+Needs access to component instance (through React ref usually).
 
 **Parameters:**
 
@@ -60,5 +127,24 @@ Name | Type |
 ------ | ------ |
 `node` | [FiberNode](_mocked_types_index_.md#fibernode) \| null |
 `expectedClassInstance` | `Component` |
+`traverseConfig?` | [TTraverseConfig](../interfaces/_traverse_.ttraverseconfig.md) |
 
-**Returns:** *[FiberNode](_mocked_types_index_.md#fibernode) | null*
+**Returns:** *[FiberNode](_mocked_types_index_.md#fibernode) | null*
+
+___
+
+###  findNodesByComponentName
+
+▸ **findNodesByComponentName**(`node`: [FiberNode](_mocked_types_index_.md#fibernode) | null, `expectedName`: string, `traverseConfig?`: [TTraverseConfig](../interfaces/_traverse_.ttraverseconfig.md)): *`IterableIterator<FiberNode>`*
+
+*Defined in [findNode.ts:41](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/findNode.ts#L41)*
+
+**Parameters:**
+
+Name | Type |
+------ | ------ |
+`node` | [FiberNode](_mocked_types_index_.md#fibernode) \| null |
+`expectedName` | string |
+`traverseConfig?` | [TTraverseConfig](../interfaces/_traverse_.ttraverseconfig.md) |
+
+**Returns:** *`IterableIterator<FiberNode>`*

docs/modules/_match_.md

@@ -0,0 +1,64 @@
+> **[react-fiber-traverse](../README.md)**
+
+[Globals](../globals.md) / ["match"](_match_.md) /
+
+# External module: "match"
+
+## Index
+
+### Functions
+
+* [matchAll](_match_.md#matchall)
+* [matchFirst](_match_.md#matchfirst)
+* [matchGenerator](_match_.md#matchgenerator)
+
+## Functions
+
+###  matchAll
+
+▸ **matchAll**(`node`: [FiberNode](_mocked_types_index_.md#fibernode), `match`: string | `CSSWhat.Selector`[][]): *`Array<FiberNode>`*
+
+*Defined in [match.ts:115](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/match.ts#L115)*
+
+**Parameters:**
+
+Name | Type |
+------ | ------ |
+`node` | [FiberNode](_mocked_types_index_.md#fibernode) |
+`match` | string \| `CSSWhat.Selector`[][] |
+
+**Returns:** *`Array<FiberNode>`*
+
+___
+
+###  matchFirst
+
+▸ **matchFirst**(`node`: [FiberNode](_mocked_types_index_.md#fibernode), `match`: string | `CSSWhat.Selector`[][]): *[FiberNode](_mocked_types_index_.md#fibernode) | null*
+
+*Defined in [match.ts:122](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/match.ts#L122)*
+
+**Parameters:**
+
+Name | Type |
+------ | ------ |
+`node` | [FiberNode](_mocked_types_index_.md#fibernode) |
+`match` | string \| `CSSWhat.Selector`[][] |
+
+**Returns:** *[FiberNode](_mocked_types_index_.md#fibernode) | null*
+
+___
+
+###  matchGenerator
+
+▸ **matchGenerator**(`node`: [FiberNode](_mocked_types_index_.md#fibernode), `match`: string | `CSSWhat.Selector`[][]): *`IterableIterator<FiberNode>`*
+
+*Defined in [match.ts:6](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/match.ts#L6)*
+
+**Parameters:**
+
+Name | Type |
+------ | ------ |
+`node` | [FiberNode](_mocked_types_index_.md#fibernode) |
+`match` | string \| `CSSWhat.Selector`[][] |
+
+**Returns:** *`IterableIterator<FiberNode>`*

docs/modules/_mocked_types_index_.md

@@ -25,7 +25,7 @@
 
 Ƭ **FiberNode**: *[FiberNodeForComponentClass](../interfaces/_mocked_types_index_.fibernodeforcomponentclass.md) | [FiberNodeForFunctionComponent](../interfaces/_mocked_types_index_.fibernodeforfunctioncomponent.md) | [FiberNodeForInstrinsicElement](../interfaces/_mocked_types_index_.fibernodeforinstrinsicelement.md) | [FiberNodeForTextNode](../interfaces/_mocked_types_index_.fibernodefortextnode.md)*
 
-*Defined in [mocked-types/index.ts:11](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L11)*
+*Defined in [mocked-types/index.ts:11](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L11)*
 
 ___
 
@@ -33,4 +33,4 @@ ___
 
 Ƭ **FiberNodeisHTMLLike**: *[FiberNodeForInstrinsicElement](../interfaces/_mocked_types_index_.fibernodeforinstrinsicelement.md) | [FiberNodeForTextNode](../interfaces/_mocked_types_index_.fibernodefortextnode.md)*
 
-*Defined in [mocked-types/index.ts:67](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/mocked-types/index.ts#L67)*
+*Defined in [mocked-types/index.ts:67](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/mocked-types/index.ts#L67)*

docs/modules/_traverse_.md

@@ -6,6 +6,10 @@
 
 ## Index
 
+### Interfaces
+
+* [TTraverseConfig](../interfaces/_traverse_.ttraverseconfig.md)
+
 ### Functions
 
 * [traverse](_traverse_.md#traverse)
@@ -15,9 +19,21 @@
 
 ###  traverse
 
-▸ **traverse**(`node`: [FiberNode](_mocked_types_index_.md#fibernode), `fn`: function): *void*
+▸ **traverse**(`node`: [FiberNode](_mocked_types_index_.md#fibernode), `fn`: function, `traverseConfig?`: [TTraverseConfig](../interfaces/_traverse_.ttraverseconfig.md)): *void*
 
-*Defined in [traverse.ts:4](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/traverse.ts#L4)*
+*Defined in [traverse.ts:146](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/traverse.ts#L146)*
+
+Traverse nodes recursively in depth-first manner, starting from a start node.
+
+This is the default and basic traversal function, which covers basic use cases.
+You can't do advanced things like change the order of traversal, skip or cancel traversal after any node, etc.
+For more advanced usecases, see [traverseGenerator](_traverse_.md#traversegenerator)
+
+**`example`** 
+```js
+// calls fn for each node inside startNode
+traverse(startNode, fn);
+```
 
 **Parameters:**
 
@@ -33,6 +49,8 @@ Name | Type |
 ------ | ------ |
 `node` | [FiberNode](_mocked_types_index_.md#fibernode) |
 
+▪`Optional`  **traverseConfig**: *[TTraverseConfig](../interfaces/_traverse_.ttraverseconfig.md)*
+
 **Returns:** *void*
 
 ___
@@ -41,7 +59,64 @@ ___
 
 ▸ **traverseGenerator**(`node`: [FiberNode](_mocked_types_index_.md#fibernode), `__namedParameters`: object): *`IterableIterator<FiberNode>`*
 
-*Defined in [traverse.ts:15](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/traverse.ts#L15)*
+*Defined in [traverse.ts:69](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/traverse.ts#L69)*
+
+Traverse nodes recursively using generators.
+
+This is the advanced traverse function, which can be used used
+to write other variants of traversal and find.
+
+Type signature for generator.next first argument is `{ skipChild?: boolean; skipSibling?: boolean } | void `
+Throw any error into the generator to finish the generator and let it cleanup its internals.
+
+It allows inversion of control -
+so, application code can decide to
+1. change order of traversal,
+2. skip some elements,
+3. cancel traversal mid-way.
+
+**`example`** 
+```js
+// Basic use (for-of)
+
+const nodeIterator = traverseGenerator(rootNode);
+for (const node of nodeIterator) {
+ // do something with each node here
+}
+```
+------
+
+**`example`** 
+```js
+// Breadth-first
+
+// note the order below
+const nodeIterator = traverseGenerator(rootNode, ["self", "sibling", "child"]);
+// rest - same as above
+```
+-----
+
+**`example`** 
+```js
+// Get first 3 nodes and then stop the generator
+
+const nodeIterator = traverseGenerator(rootNode);
+
+var count = 0;
+var next;
+while (
+   count < 3 &&
+   !(next = nodeIterator.next()).done
+) {
+   count++;
+   const node = next.value;
+   // do something with each node here
+}
+
+// Finish generator, to prevent memory leak
+nodeIterator.throw(new Error());
+```
+-----
 
 **Parameters:**
 
@@ -52,5 +127,7 @@ ___
 Name | Type | Default |
 ------ | ------ | ------ |
 `order` | "self" \| "child" \| "sibling"[] |  ["self", "child", "sibling"] |
+`skipSelfForStartNode` | boolean | false |
+`skipSiblingForStartNode` | boolean | true |
 
 **Returns:** *`IterableIterator<FiberNode>`*

docs/modules/_utils_.md

@@ -24,7 +24,7 @@
 
 ▸ **doesElementContainRootFiberNode**(`element`: `Element`): *boolean*
 
-*Defined in [utils.ts:65](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/utils.ts#L65)*
+*Defined in [utils.ts:65](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/utils.ts#L65)*
 
 **Parameters:**
 
@@ -40,7 +40,7 @@ ___
 
 ▸ **getRootFiberNodeFromDOM**(`startElement?`: [Element](../interfaces/_mocked_types_index_.fibernodedomcontainer.md#element)): *[FiberNode](_mocked_types_index_.md#fibernode) | null*
 
-*Defined in [utils.ts:82](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/utils.ts#L82)*
+*Defined in [utils.ts:82](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/utils.ts#L82)*
 
 Util to find root React Fiber node from html DOM tree.
 Returns null, if not found.SHould be called after ReactDOM.render is finished.
@@ -59,7 +59,7 @@ ___
 
 ▸ **isConstructorComponentClass**(`ctr`: `React.ElementType` | null): *boolean*
 
-*Defined in [utils.ts:42](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/utils.ts#L42)*
+*Defined in [utils.ts:42](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/utils.ts#L42)*
 
 **Parameters:**
 
@@ -75,7 +75,7 @@ ___
 
 ▸ **isConstructorFunctionComponent**(`ctr`: `React.ElementType` | null): *boolean*
 
-*Defined in [utils.ts:59](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/utils.ts#L59)*
+*Defined in [utils.ts:59](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/utils.ts#L59)*
 
 **Parameters:**
 
@@ -91,7 +91,7 @@ ___
 
 ▸ **isConstructorHtmlLike**(`ctr`: `React.ElementType` | null): *boolean*
 
-*Defined in [utils.ts:33](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/utils.ts#L33)*
+*Defined in [utils.ts:33](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/utils.ts#L33)*
 
 **Parameters:**
 
@@ -107,7 +107,7 @@ ___
 
 ▸ **isNodeComponentClass**(`node`: [FiberNode](_mocked_types_index_.md#fibernode)): *boolean*
 
-*Defined in [utils.ts:27](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/utils.ts#L27)*
+*Defined in [utils.ts:27](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/utils.ts#L27)*
 
 **Parameters:**
 
@@ -123,7 +123,7 @@ ___
 
 ▸ **isNodeFunctionComponent**(`node`: [FiberNode](_mocked_types_index_.md#fibernode)): *boolean*
 
-*Defined in [utils.ts:21](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/utils.ts#L21)*
+*Defined in [utils.ts:21](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/utils.ts#L21)*
 
 **Parameters:**
 
@@ -139,7 +139,7 @@ ___
 
 ▸ **isNodeHtmlLike**(`node`: [FiberNode](_mocked_types_index_.md#fibernode)): *boolean*
 
-*Defined in [utils.ts:11](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/utils.ts#L11)*
+*Defined in [utils.ts:11](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/utils.ts#L11)*
 
 **Parameters:**
 
@@ -155,7 +155,7 @@ ___
 
 ▸ **isNodeNotHtmlLike**(`node`: [FiberNode](_mocked_types_index_.md#fibernode)): *boolean*
 
-*Defined in [utils.ts:15](https://github.com/bendtherules/react-fiber-traverse/blob/18ea2e7/src/utils.ts#L15)*
+*Defined in [utils.ts:15](https://github.com/bendtherules/react-fiber-traverse/blob/c92c64b/src/utils.ts#L15)*
 
 **Parameters:**
 

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "react-fiber-traverse",
-  "version": "0.0.7",
+  "version": "0.0.8",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -1320,6 +1320,12 @@
         "defer-to-connect": "^1.0.1"
       }
     },
+    "@tootallnate/once": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/@tootallnate/once/-/once-1.1.2.tgz",
+      "integrity": "sha512-RbzJvlNzmRq5c3O09UipeuXno4tA1FE6ikOjxZK0tuxVv3412l64l5t1W5pj4+rJq9vpkm/kwiR07aZXnsKPxw==",
+      "dev": true
+    },
     "@types/babel__core": {
       "version": "7.1.2",
       "resolved": "https://registry.npmjs.org/@types/babel__core/-/babel__core-7.1.2.tgz",
@@ -1825,12 +1831,12 @@
       "dev": true
     },
     "agent-base": {
-      "version": "4.3.0",
+      "version": "6.0.2",
-      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-4.3.0.tgz",
+      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-6.0.2.tgz",
-      "integrity": "sha512-salcGninV0nPrwpGNn4VTXBb1SOuXQBiqbrNXoeizJsHrsL6ERFM2Ne3JUSBWRE6aeNJI2ROP/WEEIDUiDe3cg==",
+      "integrity": "sha512-RZNwNclF7+MS/8bDg70amg32dyeZGZxiDuQmZxKLAlQjr3jGyLx+4Kkk58UO7D2QdgFIQCovuSuZESne6RG6XQ==",
       "dev": true,
       "requires": {
-        "es6-promisify": "^5.0.0"
+        "debug": "4"
       }
     },
     "airbnb-prop-types": {
@@ -2003,7 +2009,7 @@
     "argv": {
       "version": "0.0.2",
       "resolved": "https://registry.npmjs.org/argv/-/argv-0.0.2.tgz",
-      "integrity": "sha1-7L0W+JSbFXGDcRsb2jNPN4QBhas=",
+      "integrity": "sha512-dEamhpPEwRUBpLNHeuCm/v+g0anFByHahxodVO/BbAarHVBBg2MccCwf9K+o1Pof+2btdnkJelYVUWjW/VrATw==",
       "dev": true
     },
     "arr-diff": {
@@ -3396,16 +3402,28 @@
       "dev": true
     },
     "codecov": {
-      "version": "3.5.0",
+      "version": "3.8.3",
-      "resolved": "https://registry.npmjs.org/codecov/-/codecov-3.5.0.tgz",
+      "resolved": "https://registry.npmjs.org/codecov/-/codecov-3.8.3.tgz",
-      "integrity": "sha512-/OsWOfIHaQIr7aeZ4pY0UC1PZT6kimoKFOFYFNb6wxo3iw12nRrh+mNGH72rnXxNsq6SGfesVPizm/6Q3XqcFQ==",
+      "integrity": "sha512-Y8Hw+V3HgR7V71xWH2vQ9lyS358CbGCldWlJFR0JirqoGtOoas3R3/OclRTvgUYFK29mmJICDPauVKmpqbwhOA==",
       "dev": true,
       "requires": {
-        "argv": "^0.0.2",
+        "argv": "0.0.2",
-        "ignore-walk": "^3.0.1",
+        "ignore-walk": "3.0.4",
-        "js-yaml": "^3.13.1",
+        "js-yaml": "3.14.1",
-        "teeny-request": "^3.11.3",
+        "teeny-request": "7.1.1",
-        "urlgrey": "^0.4.4"
+        "urlgrey": "1.0.0"
+      },
+      "dependencies": {
+        "js-yaml": {
+          "version": "3.14.1",
+          "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.14.1.tgz",
+          "integrity": "sha512-okMH7OXXJ7YrN9Ok3/SXrnu4iX9yOk+25nqX4imS2npuvTYDmo/QEZoqwZkYaIDk3jVvBOTOIEgEhaLOynBS9g==",
+          "dev": true,
+          "requires": {
+            "argparse": "^1.0.7",
+            "esprima": "^4.0.0"
+          }
+        }
       }
     },
     "collapse-white-space": {
@@ -3775,13 +3793,20 @@
         "css-what": "2.1",
         "domutils": "1.5.1",
         "nth-check": "~1.0.1"
+      },
+      "dependencies": {
+        "css-what": {
+          "version": "2.1.3",
+          "resolved": "https://registry.npmjs.org/css-what/-/css-what-2.1.3.tgz",
+          "integrity": "sha512-a+EPoD+uZiNfh+5fxw2nO9QwFa6nJe2Or35fGY6Ipw1R3R4AGz1d1TEZrCegvw2YTmZ0jXirGYlzxxpYSHwpEg==",
+          "dev": true
+        }
       }
     },
     "css-what": {
-      "version": "2.1.3",
+      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/css-what/-/css-what-2.1.3.tgz",
+      "resolved": "https://registry.npmjs.org/css-what/-/css-what-3.2.0.tgz",
-      "integrity": "sha512-a+EPoD+uZiNfh+5fxw2nO9QwFa6nJe2Or35fGY6Ipw1R3R4AGz1d1TEZrCegvw2YTmZ0jXirGYlzxxpYSHwpEg==",
+      "integrity": "sha512-lukqnlbswsPmDZ5+ViDBCcrk+1fyPBA+ZoHSAQhRuEeXBKUb3Lj2kcTwMqoiFrJAnEeO9u3Oc8X617SUm3apYQ=="
-      "dev": true
     },
     "cssom": {
       "version": "0.3.8",
@@ -4404,21 +4429,6 @@
         "is-symbol": "^1.0.2"
       }
     },
-    "es6-promise": {
-      "version": "4.2.8",
-      "resolved": "https://registry.npmjs.org/es6-promise/-/es6-promise-4.2.8.tgz",
-      "integrity": "sha512-HJDGx5daxeIvxdBxvG2cb9g4tEvwIk3i8+nhX0yGrYmZUzbkdg8QbDevheDB8gd0//uPj4c1EQua8Q+MViT0/w==",
-      "dev": true
-    },
-    "es6-promisify": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/es6-promisify/-/es6-promisify-5.0.0.tgz",
-      "integrity": "sha1-UQnWLz5W6pZ8S2NQWu8IKRyKUgM=",
-      "dev": true,
-      "requires": {
-        "es6-promise": "^4.0.3"
-      }
-    },
     "escape-string-regexp": {
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
@@ -4943,6 +4953,23 @@
       "integrity": "sha1-PYpcZog6FqMMqGQ+hR8Zuqd5eRc=",
       "dev": true
     },
+    "fast-url-parser": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/fast-url-parser/-/fast-url-parser-1.1.3.tgz",
+      "integrity": "sha512-5jOCVXADYNuRkKFzNJ0dCCewsZiYo0dz8QNYljkOpFC6r2U4OBmKtvm/Tsuh4w1YYdDqDb31a8TVhBJ2OJKdqQ==",
+      "dev": true,
+      "requires": {
+        "punycode": "^1.3.2"
+      },
+      "dependencies": {
+        "punycode": {
+          "version": "1.4.1",
+          "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.4.1.tgz",
+          "integrity": "sha512-jmYNElW7yvO7TV33CjSmvSiE2yco3bV2czu/OzDKdMNVZQWfxCblURLhf+47syQRBntjfLdd/H0egrzIG+oaFQ==",
+          "dev": true
+        }
+      }
+    },
     "fastq": {
       "version": "1.6.0",
       "resolved": "https://registry.npmjs.org/fastq/-/fastq-1.6.0.tgz",
@@ -6007,9 +6034,9 @@
       }
     },
     "handlebars": {
-      "version": "4.1.2",
+      "version": "4.5.3",
-      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.1.2.tgz",
+      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.5.3.tgz",
-      "integrity": "sha512-nvfrjqvt9xQ8Z/w0ijewdD/vvWDTOweBUm96NTr66Wfvo1mJenBLwcYmPs3TIBP5ruzYGD7Hx/DaM9RmhroGPw==",
+      "integrity": "sha512-3yPecJoJHK/4c6aZhSvxOyG4vJKDshV36VHp0iVCDVh7o9w2vwi3NSnL2MMPj3YdduqaBcu7cGbggJQM0br9xA==",
       "dev": true,
       "requires": {
         "neo-async": "^2.6.0",
@@ -6268,6 +6295,17 @@
       "integrity": "sha512-TcIMG3qeVLgDr1TEd2XvHaTnMPwYQUQMIBLy+5pLSDKYFc7UIqj39w8EGzZkaxoLv/l2K8HaI0t5AVA+YYgUew==",
       "dev": true
     },
+    "http-proxy-agent": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/http-proxy-agent/-/http-proxy-agent-4.0.1.tgz",
+      "integrity": "sha512-k0zdNgqWTGA6aeIRVpvfVob4fL52dTfaehylg0Y4UvSySvOq/Y+BOyPrgpUrA7HylqvU8vIZGsRuXmspskV0Tg==",
+      "dev": true,
+      "requires": {
+        "@tootallnate/once": "1",
+        "agent-base": "6",
+        "debug": "4"
+      }
+    },
     "http-signature": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/http-signature/-/http-signature-1.2.0.tgz",
@@ -6286,24 +6324,13 @@
       "dev": true
     },
     "https-proxy-agent": {
-      "version": "2.2.2",
+      "version": "5.0.1",
-      "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-2.2.2.tgz",
+      "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-5.0.1.tgz",
-      "integrity": "sha512-c8Ndjc9Bkpfx/vCJueCPy0jlP4ccCCSNDp8xwCZzPjKJUm+B+u9WX2x98Qx4n1PiMNTWo3D7KK5ifNV/yJyRzg==",
+      "integrity": "sha512-dFcAjpTQFgoLMzC2VwU+C/CbS7uRL0lWmxDITmqm7C+7F0Odmj6s9l6alZc6AELXhrnggM2CeWSXHGOdX2YtwA==",
       "dev": true,
       "requires": {
-        "agent-base": "^4.3.0",
+        "agent-base": "6",
-        "debug": "^3.1.0"
+        "debug": "4"
-      },
-      "dependencies": {
-        "debug": {
-          "version": "3.2.6",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.6.tgz",
-          "integrity": "sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==",
-          "dev": true,
-          "requires": {
-            "ms": "^2.1.1"
-          }
-        }
       }
     },
     "husky": {
@@ -6440,9 +6467,9 @@
       "dev": true
     },
     "ignore-walk": {
-      "version": "3.0.1",
+      "version": "3.0.4",
-      "resolved": "https://registry.npmjs.org/ignore-walk/-/ignore-walk-3.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/ignore-walk/-/ignore-walk-3.0.4.tgz",
-      "integrity": "sha512-DTVlMx3IYPe0/JJcYP7Gxg7ttZZu3IInhuEhbchuqneY9wWe5Ojy2mXLBaQFUQmo0AW2r3qG7m1mg86js+gnlQ==",
+      "integrity": "sha512-PY6Ii8o1jMRA1z4F2hRkH/xN59ox43DavKvD3oDpfurRlOJyAHpifIwpbdv1n4jt4ov0jSpw3kQ4GhJnpBL6WQ==",
       "dev": true,
       "requires": {
         "minimatch": "^3.0.4"
@@ -8754,10 +8781,37 @@
       }
     },
     "node-fetch": {
-      "version": "2.6.0",
+      "version": "2.6.7",
-      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.0.tgz",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.7.tgz",
-      "integrity": "sha512-8dG4H5ujfvFiqDmVu9fQ5bOHUC15JMjMY/Zumv26oOvvVJjM67KF8koCWIabKQ1GJIa9r2mMZscBq/TbdOcmNA==",
+      "integrity": "sha512-ZjMPFEfVx5j+y2yF35Kzx5sF7kDzxuDj6ziH4FFbOp87zKDZNx8yExJIb05OGF4Nlt9IHFIMBkRl41VdvcNdbQ==",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "whatwg-url": "^5.0.0"
+      },
+      "dependencies": {
+        "tr46": {
+          "version": "0.0.3",
+          "resolved": "https://registry.npmjs.org/tr46/-/tr46-0.0.3.tgz",
+          "integrity": "sha512-N3WMsuqV66lT30CrXNbEjx4GEwlow3v6rr4mCcv6prnfwhS01rkgyFdjPNBYd9br7LpXV1+Emh01fHnq2Gdgrw==",
+          "dev": true
+        },
+        "webidl-conversions": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",
+          "integrity": "sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ==",
+          "dev": true
+        },
+        "whatwg-url": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-5.0.0.tgz",
+          "integrity": "sha512-saE57nupxk6v3HY35+jzBwYa0rKSy0XR8JSxZPwgLr7ys0IBzhGviA1/TUGJLmSVqs8pb9AnvICXEuOHLprYTw==",
+          "dev": true,
+          "requires": {
+            "tr46": "~0.0.3",
+            "webidl-conversions": "^3.0.0"
+          }
+        }
+      }
     },
     "node-int64": {
       "version": "0.4.0",
@@ -11336,6 +11390,15 @@
         "stream-shift": "^1.0.0"
       }
     },
+    "stream-events": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/stream-events/-/stream-events-1.0.5.tgz",
+      "integrity": "sha512-E1GUzBSgvct8Jsb3v2X15pjzN1tYebtbLaMg+eBOUOAxgbLoSbT2NS91ckc5lJD1KfLjId+jXJRgo0qnV5Nerg==",
+      "dev": true,
+      "requires": {
+        "stubs": "^3.0.0"
+      }
+    },
     "stream-http": {
       "version": "2.8.3",
       "resolved": "https://registry.npmjs.org/stream-http/-/stream-http-2.8.3.tgz",
@@ -11535,6 +11598,12 @@
       "integrity": "sha1-PFMZQukIwml8DsNEhYwobHygpgo=",
       "dev": true
     },
+    "stubs": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/stubs/-/stubs-3.0.0.tgz",
+      "integrity": "sha512-PdHt7hHUJKxvTCgbKX9C1V/ftOcjJQgz8BZwNfV5c4B6dcGqlpelTbJ999jBGZ2jYiPAwcX5dP6oBwVlBlUbxw==",
+      "dev": true
+    },
     "supports-color": {
       "version": "5.5.0",
       "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
@@ -11668,14 +11737,24 @@
       }
     },
     "teeny-request": {
-      "version": "3.11.3",
+      "version": "7.1.1",
-      "resolved": "https://registry.npmjs.org/teeny-request/-/teeny-request-3.11.3.tgz",
+      "resolved": "https://registry.npmjs.org/teeny-request/-/teeny-request-7.1.1.tgz",
-      "integrity": "sha512-CKncqSF7sH6p4rzCgkb/z/Pcos5efl0DmolzvlqRQUNcpRIruOhY9+T1FsIlyEbfWd7MsFpodROOwHYh2BaXzw==",
+      "integrity": "sha512-iwY6rkW5DDGq8hE2YgNQlKbptYpY5Nn2xecjQiNjOXWbKzPGUfmeUBCSQbbr306d7Z7U2N0TPl+/SwYRfua1Dg==",
       "dev": true,
       "requires": {
-        "https-proxy-agent": "^2.2.1",
+        "http-proxy-agent": "^4.0.0",
-        "node-fetch": "^2.2.0",
+        "https-proxy-agent": "^5.0.0",
-        "uuid": "^3.3.2"
+        "node-fetch": "^2.6.1",
+        "stream-events": "^1.0.5",
+        "uuid": "^8.0.0"
+      },
+      "dependencies": {
+        "uuid": {
+          "version": "8.3.2",
+          "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
+          "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==",
+          "dev": true
+        }
       }
     },
     "term-size": {
@@ -12633,10 +12712,13 @@
       }
     },
     "urlgrey": {
-      "version": "0.4.4",
+      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/urlgrey/-/urlgrey-0.4.4.tgz",
+      "resolved": "https://registry.npmjs.org/urlgrey/-/urlgrey-1.0.0.tgz",
-      "integrity": "sha1-iS/pWWCAXoVRnxzUOJ8stMu3ZS8=",
+      "integrity": "sha512-hJfIzMPJmI9IlLkby8QrsCykQ+SXDeO2W5Q9QTW3QpqZVTx4a/K7p8/5q+/isD8vsbVaFgql/gvAoQCRQ2Cb5w==",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "fast-url-parser": "^1.1.3"
+      }
     },
     "use": {
       "version": "3.1.1",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-fiber-traverse",
-  "version": "0.0.7",
+  "version": "0.0.8",
   "description": "Traverse and other utils on top of React fiber tree",
   "main": "dist/index.js",
   "module": "dist/react-fiber-traverse.esm.js",
@@ -37,7 +37,7 @@
     "test:src:watch": "npm run test:src -- --watch",
     "test:umd": "jest --config ./scripts/jest/config.umd.js",
     "test:umdprod": "jest --config ./scripts/jest/config.umdprod.js",
-    "test:src:debug": "node --inspect ./node_modules/jest/bin/jest.js  --config ./scripts/jest/config.src.js",
+    "test:src:debug": "node --inspect ./node_modules/jest/bin/jest.js --runInBand --config ./scripts/jest/config.src.js",
     "version": "run-s test authors docs && git add ."
   },
   "husky": {
@@ -66,6 +66,7 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.5.4",
+    "css-what": "^3.2.0",
     "prop-types": "^15.7.2"
   },
   "devDependencies": {
@@ -84,7 +85,7 @@
     "@typescript-eslint/parser": "1.12.0",
     "babel-core": "6.26.3",
     "babel-plugin-transform-react-remove-prop-types": "0.4.24",
-    "codecov": "3.5.0",
+    "codecov": "3.8.3",
     "cp-cli": "2.0.0",
     "cross-env": "5.2.0",
     "del-cli": "2.0.0",

src/findNode.ts

@@ -1,94 +1,150 @@
 import { FiberNode } from "./mocked-types";
+import { traverseGenerator, TTraverseConfig } from "./traverse";
 import { isNodeNotHtmlLike } from "./utils";
 
+/**
+ * Find node by component name, till first match.
+ *
+ * Matches against class and function name, doesn't match html-like nodes.
+ * Returns null if no match is found.
+ *
+ * @example
+ * ```js
+ * // returns FiberNode for first usage of 'AccordionMenu'
+ * findNodeByComponentName(startNode, "AccordionMenu");
+ * ```
+ *
+ * @note Highest chance of collision, least data access needed.
+ * Different components with same name will collide.
+ * Needs access to component name.
+ *
+ */
 function findNodeByComponentName(
   node: FiberNode | null,
-  expectedName: string
+  expectedName: string,
+  traverseConfig?: TTraverseConfig
 ): FiberNode | null {
   if (node === null) {
     return null;
   }
 
-  if (isNodeNotHtmlLike(node) && node.type.name === expectedName) {
+  const nodeIterator = traverseGenerator(node, traverseConfig);
-    return node;
+  for (const tmpNode of nodeIterator) {
-  }
+    if (isNodeNotHtmlLike(tmpNode) && tmpNode.type.name === expectedName) {
-
+      return tmpNode;
-  {
-    const returnVal = findNodeByComponentName(node.child, expectedName);
-    if (returnVal !== null) {
-      return returnVal;
-    }
-  }
-  {
-    const returnVal = findNodeByComponentName(node.sibling, expectedName);
-    if (returnVal !== null) {
-      return returnVal;
     }
   }
 
   return null;
 }
 
+function* findNodesByComponentName(
+  node: FiberNode | null,
+  expectedName: string,
+  traverseConfig?: TTraverseConfig
+): IterableIterator<FiberNode> {
+  if (node === null) {
+    return null;
+  }
+
+  const nodeIterator = traverseGenerator(node, traverseConfig);
+  for (const tmpNode of nodeIterator) {
+    if (isNodeNotHtmlLike(tmpNode) && tmpNode.type.name === expectedName) {
+      yield tmpNode;
+    }
+  }
+}
+
+function findAllNodesByComponentName(
+  node: FiberNode | null,
+  expectedName: string,
+  traverseConfig?: TTraverseConfig
+): Array<FiberNode> {
+  return [...findNodesByComponentName(node, expectedName, traverseConfig)];
+}
+
+/**
+ * Find node by component (i.e. class or function by reference), till first match.
+ *
+ * Matches against class and function by reference.
+ * Returns null if no match is found.
+ *
+ * @example
+ * ```js
+ * // returns FiberNode for first usage of AccordionMenu
+ * findNodeByComponent(startNode, AccordionMenu);
+ * ```
+ *
+ * @note Medium chance of collision, medium data access needed.
+ * This is safer than findNodeByComponentName, as different components with the same name won't collide.
+ * But, two instances of the same component will still collide.
+ * Needs access to component class or function.
+ *
+ */
 function findNodeByComponent(
   node: FiberNode | null,
-  expectedClassOrFunction: React.ComponentType
+  expectedClassOrFunction: React.ComponentType,
+  traverseConfig?: TTraverseConfig
 ): FiberNode | null {
   if (node === null) {
     return null;
   }
 
-  if (isNodeNotHtmlLike(node) && node.type === expectedClassOrFunction) {
+  const nodeIterator = traverseGenerator(node, traverseConfig);
-    return node;
+  for (const tmpNode of nodeIterator) {
-  }
+    if (
-
+      isNodeNotHtmlLike(tmpNode) &&
-  {
+      tmpNode.type === expectedClassOrFunction
-    const returnVal = findNodeByComponent(node.child, expectedClassOrFunction);
+    ) {
-    if (returnVal !== null) {
+      return tmpNode;
-      return returnVal;
-    }
-  }
-  {
-    const returnVal = findNodeByComponent(
-      node.sibling,
-      expectedClassOrFunction
-    );
-    if (returnVal !== null) {
-      return returnVal;
     }
   }
 
   return null;
 }
 
+/**
+ * Find node by component instance ref, till first match.
+ *
+ * Matches against class instances by reference.
+ * Returns null if no match is found.
+ *
+ * @example
+ * ```js
+ * // menuRef=createRef(); <AccordionMenu ref={menuRef}>
+ * findNodeByComponentRef(startNode, menuRef.current);
+ * ```
+ *
+ * @note  Least chance of collision, maximum data access needed.
+ * Needs access to component instance (through React ref usually).
+ *
+ */
 function findNodeByComponentRef(
   node: FiberNode | null,
-  expectedClassInstance: React.Component
+  expectedClassInstance: React.Component,
+  traverseConfig?: TTraverseConfig
 ): FiberNode | null {
   if (node === null) {
     return null;
   }
 
-  if (isNodeNotHtmlLike(node) && node.stateNode === expectedClassInstance) {
+  const nodeIterator = traverseGenerator(node, traverseConfig);
-    return node;
+  for (const tmpNode of nodeIterator) {
-  }
+    if (
-
+      isNodeNotHtmlLike(tmpNode) &&
-  {
+      tmpNode.stateNode === expectedClassInstance
-    const returnVal = findNodeByComponentRef(node.child, expectedClassInstance);
+    ) {
-    if (returnVal !== null) {
+      return tmpNode;
-      return returnVal;
-    }
-  }
-  {
-    const returnVal = findNodeByComponentRef(
-      node.sibling,
-      expectedClassInstance
-    );
-    if (returnVal !== null) {
-      return returnVal;
     }
   }
 
   return null;
 }
 
-export { findNodeByComponentName, findNodeByComponent, findNodeByComponentRef };
+export {
+  findNodeByComponentName,
+  findNodesByComponentName,
+  findAllNodesByComponentName,
+  findNodeByComponent,
+  findNodeByComponentRef
+};

src/index.ts

@@ -4,6 +4,7 @@ import {
   findNodeByComponentRef,
   findNodeByComponentName
 } from "./findNode";
+import { matchGenerator, matchAll, matchFirst } from "./match";
 import * as Utils from "./utils";
 
 export {
@@ -12,5 +13,8 @@ export {
   findNodeByComponent,
   findNodeByComponentRef,
   findNodeByComponentName,
+  matchGenerator,
+  matchAll,
+  matchFirst,
   Utils
 };

src/match.ts

@@ -0,0 +1,141 @@
+import * as CSSWhat from "css-what";
+import { traverseGenerator } from "./traverse";
+import { FiberNode } from "./mocked-types";
+import { isNodeNotHtmlLike } from "./utils";
+
+function* matchGenerator(
+  node: FiberNode,
+  match: string | CSSWhat.Selector[][]
+): IterableIterator<FiberNode> {
+  // Either parse match string or allow parsed match object as it is
+  let matchParsed: CSSWhat.Selector[][];
+  if (typeof match === "string") {
+    matchParsed = CSSWhat.parse(match, {
+      lowerCaseTags: false,
+      lowerCaseAttributeNames: false
+    });
+  } else {
+    matchParsed = match;
+  }
+  // If selector is a combination of multiple basic selectors (a, b),
+  // pass them separately to matchGenerator and combine their results one after another
+  const selectorsCount = matchParsed.length;
+  if (selectorsCount > 1) {
+    for (const selectorParsed of matchParsed) {
+      yield* matchGenerator(node, [selectorParsed]);
+    }
+
+    return;
+  }
+
+  // For simple selector (matchParsed.length == 0), actual logic starts here
+  {
+    const parsedSelector = matchParsed[0];
+    if (parsedSelector.length === 0) {
+      return;
+    }
+
+    let currentMatchingNodes: FiberNode[] = [node];
+    let currentMatchingSelectorPartIndex = 0;
+    let lastRelationshipSelectorPart: CSSWhat.Selector | undefined = undefined;
+
+    while (currentMatchingSelectorPartIndex < parsedSelector.length) {
+      const nextMatchingNodes: FiberNode[] = [];
+
+      for (const currentNode of currentMatchingNodes) {
+        const currentMatchingSelectorPart: CSSWhat.Selector =
+          parsedSelector[currentMatchingSelectorPartIndex];
+        if (["tag"].includes(currentMatchingSelectorPart.type)) {
+          const startParams = {
+            skipSelfForStartNode: true,
+            skipSiblingForStartNode: true
+          };
+
+          let nextParams: {
+            skipChild?: boolean;
+            skipSibling?: boolean;
+          } = {};
+          if (
+            lastRelationshipSelectorPart === undefined ||
+            lastRelationshipSelectorPart.type === "descendant"
+          ) {
+            nextParams = { skipChild: false, skipSibling: false };
+          } else if (lastRelationshipSelectorPart.type === "child") {
+            // visit only first level of child
+            nextParams = { skipChild: true };
+          } else if (lastRelationshipSelectorPart.type === "sibling") {
+            // visit only siblings of start node
+            nextParams = { skipChild: true, skipSibling: true };
+            startParams.skipSiblingForStartNode = false;
+          }
+
+          const traverseIterator = traverseGenerator(currentNode, startParams);
+
+          // Handle supported non-traversal parts here
+          if (currentMatchingSelectorPart.type == "tag") {
+            let tmpNode: FiberNode;
+            while (
+              !({ value: tmpNode } = traverseIterator.next(nextParams)).done
+            ) {
+              if (
+                isNodeNotHtmlLike(tmpNode) &&
+                tmpNode.type.name === currentMatchingSelectorPart.name
+              ) {
+                nextMatchingNodes.push(tmpNode);
+              }
+            }
+          }
+          // traverseIterator.throw &&
+          //   traverseIterator.throw(new Error("cleanup"));
+        } else if (
+          ["descendant", "child"].includes(currentMatchingSelectorPart.type)
+        ) {
+          // Handle traversal parts here - Save for look back in next part
+          lastRelationshipSelectorPart = currentMatchingSelectorPart;
+          // Preserve currentMatchingNodes
+          nextMatchingNodes.push(...currentMatchingNodes);
+        } else {
+          // For unhandled parts
+          lastRelationshipSelectorPart = undefined;
+        }
+      }
+
+      currentMatchingNodes = nextMatchingNodes;
+      currentMatchingSelectorPartIndex += 1;
+    }
+
+    for (const tmpNode of currentMatchingNodes) {
+      yield tmpNode;
+    }
+
+    return;
+  }
+}
+
+function matchAll(
+  node: FiberNode,
+  match: string | CSSWhat.Selector[][]
+): Array<FiberNode> {
+  return [...matchGenerator(node, match)];
+}
+
+function matchFirst(
+  node: FiberNode,
+  match: string | CSSWhat.Selector[][]
+): FiberNode | null {
+  const matchIterator = matchGenerator(node, match);
+  const firstResult = matchIterator.next();
+
+  // Cancel generator
+  matchIterator.throw && matchIterator.throw(new Error("Cleanup"));
+
+  // If match found, return that
+  if (!firstResult.done) {
+    return firstResult.value;
+  }
+
+  // Else return null
+  return null;
+}
+
+export { matchGenerator, matchAll, matchFirst };

src/mocked-types/index.ts

@@ -44,16 +44,6 @@ export interface FiberNodeForInstrinsicElement {
   stateNode: HTMLElement;
 }
 
-export interface FiberNodeForInstrinsicElement {
-  child: FiberNode | null;
-  sibling: FiberNode | null;
-
-  elementType: keyof JSX.IntrinsicElements;
-  type: keyof JSX.IntrinsicElements;
-
-  stateNode: HTMLElement;
-}
-
 export interface FiberNodeForTextNode {
   child: null;
   sibling: FiberNode | null;

src/traverse.ts

@@ -1,47 +1,114 @@
 // import { isNodeSimple } from './utils';
 import { FiberNode } from "./mocked-types";
 
-function traverse(node: FiberNode, fn: (node: FiberNode) => any) {
+interface TTraverseConfig {
-  fn.call(null, node);
+  order?: Array<"self" | "child" | "sibling">;
-
+  skipSiblingForStartNode?: boolean;
-  if (node.child !== null) {
+  skipSelfForStartNode?: boolean;
-    traverse(node.child, fn);
-  }
-  if (node.sibling !== null) {
-    traverse(node.sibling, fn);
-  }
 }
 
+/**
+ * Traverse nodes recursively using generators.
+ *
+ * This is the advanced traverse function, which can be used used
+ * to write other variants of traversal and find.
+ *
+ * Type signature for generator.next first argument is `{ skipChild?: boolean; skipSibling?: boolean } | void `
+ * Throw any error into the generator to finish the generator and let it cleanup its internals.
+ *
+ * It allows inversion of control -
+ * so, application code can decide to
+ * 1. change order of traversal,
+ * 2. skip some elements,
+ * 3. cancel traversal mid-way.
+ *
+ * @example
+ * ```js
+ * // Basic use (for-of)
+ *
+ * const nodeIterator = traverseGenerator(rootNode);
+ * for (const node of nodeIterator) {
+ *  // do something with each node here
+ * }
+ * ```
+ * ------
+ *
+ * @example
+ * ```js
+ * // Breadth-first
+ *
+ * // note the order below
+ * const nodeIterator = traverseGenerator(rootNode, ["self", "sibling", "child"]);
+ * // rest - same as above
+ * ```
+ * -----
+ *
+ * @example
+ * ```js
+ * // Get first 3 nodes and then stop the generator
+ *
+ * const nodeIterator = traverseGenerator(rootNode);
+ *
+ * var count = 0;
+ * var next;
+ * while (
+ *    count < 3 &&
+ *    !(next = nodeIterator.next()).done
+ * ) {
+ *    count++;
+ *    const node = next.value;
+ *    // do something with each node here
+ * }
+ *
+ * // Finish generator, to prevent memory leak
+ * nodeIterator.throw(new Error());
+ * ```
+ * -----
+ *
+ */
 function* traverseGenerator(
   node: FiberNode,
   {
-    order = ["self", "child", "sibling"]
+    order = ["self", "child", "sibling"],
-  }: { order?: Array<"self" | "child" | "sibling"> } = {}
+    skipSiblingForStartNode = true,
+    skipSelfForStartNode = false
+  }: TTraverseConfig = {}
 ): IterableIterator<FiberNode> {
   let skipChild = false,
-    skipSibling = false;
+    skipSibling = skipSiblingForStartNode,
+    skipSelf = skipSelfForStartNode;
 
   function* traverseSelf() {
-    const controlInput:
+    if (!skipSelf) {
-      | { skipChild: boolean; skipSibling: boolean }
+      const controlInput:
-      | undefined = yield node;
+        | { skipChild?: boolean; skipSibling?: boolean }
+        | undefined = yield node;
 
-    if (controlInput !== undefined) {
+      if (controlInput !== undefined) {
-      ({ skipChild = skipChild, skipSibling = skipSibling } = controlInput);
+        ({ skipChild = skipChild, skipSibling = skipSibling } = controlInput);
+      }
     }
   }
 
   function* traverseChild() {
     if (!skipChild && node.child !== null) {
       const nextNode = node.child;
-      yield* traverseGenerator(nextNode, { order });
+      yield* traverseGenerator(nextNode, {
+        order,
+        skipSiblingForStartNode: false,
+        skipSelfForStartNode: false
+      });
     }
   }
 
   function* traverseSibling() {
     if (!skipSibling && node.sibling !== null) {
       const nextNode = node.sibling;
-      yield* traverseGenerator(nextNode, { order });
+      yield* traverseGenerator(nextNode, {
+        order,
+        skipSiblingForStartNode: false,
+        skipSelfForStartNode: false
+      });
     }
   }
 
@@ -62,4 +129,29 @@ function* traverseGenerator(
   }
 }
 
-export { traverse, traverseGenerator };
+/**
+ * Traverse nodes recursively in depth-first manner, starting from a start node.
+ *
+ * This is the default and basic traversal function, which covers basic use cases.
+ * You can't do advanced things like change the order of traversal, skip or cancel traversal after any node, etc.
+ * For more advanced usecases, see {@link traverseGenerator}
+ *
+ * @example
+ * ```js
+ * // calls fn for each node inside startNode
+ * traverse(startNode, fn);
+ * ```
+ *
+ */
+function traverse(
+  node: FiberNode,
+  fn: (node: FiberNode) => any,
+  traverseConfig?: TTraverseConfig
+) {
+  const nodeIterator = traverseGenerator(node, traverseConfig);
+  for (const tmpNode of nodeIterator) {
+    fn.call(null, tmpNode);
+  }
+}
+
+export { traverse, traverseGenerator, TTraverseConfig };

src/utils.ts

@@ -89,7 +89,7 @@ function getRootFiberNodeFromDOM(startElement?: Element): FiberNode | null {
   }
 
   let returnFiberNode = null;
-  for (const childNode of startElement.children) {
+  for (const childNode of [].slice.call(startElement.children)) {
     returnFiberNode = getRootFiberNodeFromDOM(childNode);
     if (returnFiberNode !== null) {
       return returnFiberNode;

test/matchGenerator-basic.spec.tsx

@@ -0,0 +1,139 @@
+import * as React from "react";
+
+// Import stuff from src
+import {
+  // matchGenerator,
+  matchAll
+  // matchFirst
+} from "../src";
+
+import {
+  FiberNodeForComponentClass
+  // FiberNodeForInstrinsicElement,
+  // FiberNodeForFunctionComponent
+} from "../src/mocked-types";
+
+// Import test helpers and sample components
+import { mountAndGetRootNode } from "./utils/mountInEnzyme";
+import {
+  // createClassComponents,
+  // createFunctionComponents,
+  createClassComponent,
+  createClassComponents
+} from "./utils/createComponent";
+
+describe("matchGenerator", () => {
+  let container: HTMLDivElement;
+
+  beforeEach(() => {
+    container = document.body.appendChild(document.createElement("div"));
+  });
+
+  afterEach(() => {
+    document.body.removeChild(container);
+  });
+
+  describe("basic", () => {
+    it("should work for depth=1 class", () => {
+      const C1 = createClassComponent("C1");
+      function CRoot() {
+        return <C1 />;
+      }
+      const rootNode = mountAndGetRootNode(CRoot, container);
+
+      const nodes = matchAll(rootNode, "C1");
+
+      // Can't be zero, in any case
+      expect(nodes.length).not.toBe(0);
+      // Check that only one node is yielded
+      expect(nodes.length).toBe(1);
+      // Check that type is correct
+      expect((nodes[0] as FiberNodeForComponentClass).type).toBe(C1);
+    });
+
+    it("should work for depth=2 class", () => {
+      const [C1, C2] = createClassComponents(["C1", "C2"]);
+      function CRoot() {
+        return (
+          <C1>
+            <C2 />
+          </C1>
+        );
+      }
+      const rootNode = mountAndGetRootNode(CRoot, container);
+
+      const nodes = matchAll(rootNode, "C2");
+
+      // Can't be zero, in any case
+      expect(nodes.length).not.toBe(0);
+      // Check that only one node is yielded
+      expect(nodes.length).toBe(1);
+      // Check that type is correct
+      expect((nodes[0] as FiberNodeForComponentClass).type).toBe(C2);
+      expect((nodes[0] as FiberNodeForComponentClass).type).not.toBe(C1);
+    });
+
+    it("should work for depth=2 class with descendant selector", () => {
+      const [C1, C2] = createClassComponents(["C1", "C2"]);
+      function CRoot() {
+        return (
+          <C1>
+            <C2 />
+          </C1>
+        );
+      }
+      const rootNode = mountAndGetRootNode(CRoot, container);
+
+      const nodes = matchAll(rootNode, "C1 C2");
+
+      // Can't be zero, in any case
+      expect(nodes.length).not.toBe(0);
+      // Check that only one node is yielded
+      expect(nodes.length).toBe(1);
+      // Check that type is correct
+      expect((nodes[0] as FiberNodeForComponentClass).type).toBe(C2);
+      expect((nodes[0] as FiberNodeForComponentClass).type).not.toBe(C1);
+    });
+
+    it("should work for depth=2 class with child selector", () => {
+      const [C1, C2] = createClassComponents(["C1", "C2"]);
+      function CRoot() {
+        return (
+          <C1>
+            <C2 />
+          </C1>
+        );
+      }
+      const rootNode = mountAndGetRootNode(CRoot, container);
+
+      const nodes = matchAll(rootNode, "C1>C2");
+
+      // Can't be zero, in any case
+      expect(nodes.length).not.toBe(0);
+      // Check that only one node is yielded
+      expect(nodes.length).toBe(1);
+      // Check that type is correct
+      expect((nodes[0] as FiberNodeForComponentClass).type).toBe(C2);
+      expect((nodes[0] as FiberNodeForComponentClass).type).not.toBe(C1);
+    });
+
+    it("should not work with child selector for nth-level descendant", () => {
+      const [C1, C2, C3] = createClassComponents(["C1", "C2", "C3"]);
+      function CRoot() {
+        return (
+          <C1>
+            <C2>
+              <C3 />
+            </C2>
+          </C1>
+        );
+      }
+      const rootNode = mountAndGetRootNode(CRoot, container);
+
+      const nodes = matchAll(rootNode, "C1>C3");
+
+      // No matcch found
+      expect(nodes.length).toBe(0);
+    });
+  });
+});

tsconfig.base.json

@@ -17,7 +17,8 @@
     "removeComments": true,
     "sourceMap": true,
     "strict": true,
-    "target": "es6"
+    "target": "es5",
+    "downlevelIteration": true
   },
   "exclude": ["node_modules", "dist"],
   "include": ["src"]