:fire: An extremely fast, React-like JavaScript library for building modern user interfaces
This report summarizes scanner evidence for infernojs/inferno, a JavaScript project with 16,459 GitHub stars. SynthScan examined 132,651 lines of code across 458 source files, recording 98 pattern matches distributed across 7 syntactic categories. The legacy adjusted pattern signal is 1.1 (Low pattern signal); it is not an authorship estimate.
Use the findings to ask whether maintainers can explain intent, verify dependencies, simplify unnecessary scaffolding, and focus review effort. Risk Payload v1 adds ownership, supply-chain, over-engineering, and review-effort vectors when available. These are prompts for human verification, not probabilities, security findings, or measured maintenance costs.
Use each vector to guide manual verification of the underlying findings.
Payload schema: 1.0.0 · Engine: 2.0.0 · Scoring: heuristic-density-v1 · Scan date: 2026-10-31.
Can maintainers explain intent, assumptions, and trade-offs? 91 finding(s).
Are imports declared and package/API names verified? 5 finding(s).
Are wrappers, guards, and repeated structures necessary? 52 finding(s).
Which changes need focused human review? 98 finding(s).
This chart tracks the legacy adjusted pattern score across scan runs. Changes can reflect source changes, scan coverage, or detector/scoring versions; they do not measure AI adoption or prove that a team refactored code. Compare runs only when their scoring versions are compatible. The dashed line tracks the raw pattern-hit count.
Groups findings by configured severity weight. Severity is not a confidence estimate, security rating, or proof that a package is missing. Verify imports against the project's manifests and inspect each finding in its local design context.
This horizontal bar chart shows where configured pattern scores accumulate across directories. Treat the bars as locations to inspect, not as evidence of authorship or code quality. Use the file-level findings to decide whether a directory needs a focused ownership, dependency, complexity, or review check.
The scanner identified 98 distinct pattern matches across 7 syntactic categories. Each entry below represents a discrete location in the source code where the engine recorded a detector match to inspect in context. Expand any category row to inspect the individual file paths, line numbers, code snippets, and the lexical context (CODE, COMMENT, or STRING) in which each match was detected.
Reading the findings table: The Severity column indicates the configured finding weight (CRITICAL / HIGH / MEDIUM / LOW). The Context column identifies whether the match occurred inside executable code, an inline comment, or a string literal — legacy comment-context matches receive a ×1.5 score weight. The ⚡ bolt icon marks clustered matches: three or more patterns within a 10-line window, each receiving an additional ×1.5 density multiplier under the legacy scoring model.
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW⚡ | docs/uibench-lifecycle/app.js | 7 | function onComponentWillMountCounter() { | CODE |
| LOW⚡ | docs/uibench-lifecycle/app.js | 11 | function onComponentDidMountCounter() { | CODE |
| LOW⚡ | docs/uibench-lifecycle/app.js | 15 | function onComponentShouldUpdateCounter() { | CODE |
| LOW⚡ | docs/uibench-lifecycle/app.js | 20 | function onComponentWillUpdateCounter() { | CODE |
| LOW⚡ | docs/uibench-lifecycle/app.js | 24 | function onComponentDidUpdateCounter() { | CODE |
| LOW⚡ | docs/uibench-lifecycle/app.js | 28 | function onComponentWillUnmountCounter() { | CODE |
| LOW⚡ | docs/uibench-lifecycle/app.js | 32 | function onComponentDidAppearCounter() { | CODE |
| LOW⚡ | docs/uibench-lifecycle/app.js | 36 | function onComponentWillDisappearCounter(dom, props, callback) { | CODE |
| LOW | docs/event-test/app.js | 7 | function hoistedNonSyntheticEvents() { | CODE |
| LOW | docs/event-test/app.js | 21 | function hoistedLinkEventNonSynthetic() { | CODE |
| LOW | docs/event-test/app.js | 49 | function newFuncsNonSyntheticEvents() { | CODE |
| LOW | packages/inferno-mobx/src/observer.ts | 143 | function makePropertyObservableReference(propName): void { | CODE |
| LOW | packages/inferno/__tests__/select.spec.tsx | 7 | function requireEmptySelectionOnInsertion() { | CODE |
| LOW | packages/inferno/__tests__/vnode-reuse.spec.tsx | 29 | function addSharedToSecondParagraph(initial) { | CODE |
| LOW | packages/inferno/__tests__/vnode-reuse.spec.tsx | 358 | function addSharedToSecondParagraph(initial) { | CODE |
| LOW | packages/inferno/src/core/validate.ts | 156 | export function validateVNodeElementChildren(vNode): void { | CODE |
| LOW | packages/inferno/src/DOM/mounting.ts | 372 | function addAppearAnimationHookClass( | CODE |
| LOW | packages/inferno/src/DOM/mounting.ts | 386 | function addAppearAnimationHookFunctional( | CODE |
| LOW | packages/inferno/src/DOM/mounting.ts | 402 | export function mountClassComponentCallbacks( | CODE |
| LOW | packages/inferno/src/DOM/mounting.ts | 442 | export function mountFunctionalComponentCallbacks( | CODE |
| LOW | packages/inferno/src/DOM/patching.ts | 173 | function patchContentEditableChildren(dom, nextChildren): void { | CODE |
| LOW | packages/inferno/src/DOM/patching.ts | 439 | function replaceOneVNodeWithMultipleVNodes( | CODE |
| LOW | packages/inferno/src/DOM/patching.ts | 1108 | function patchKeyedChildrenComplex( | CODE |
| LOW | packages/inferno/src/DOM/unmounting.ts | 191 | function addDisappearAnimationHook( | CODE |
| LOW | packages/inferno/src/DOM/wrappers/processElement.ts | 28 | export function addFormElementEventHandlers( | CODE |
| LOW | packages/inferno/src/DOM/utils/componentUtil.ts | 63 | export function createClassComponentInstance( | CODE |
| LOW | packages/inferno/src/DOM/utils/componentUtil.ts | 129 | export function renderFunctionalComponent( | CODE |
| LOW | packages/inferno/src/DOM/utils/common.ts | 329 | function createDeferComponentClassRemovalCallback(vNode, parentDOM) { | CODE |
| LOW | packages/inferno/src/DOM/events/delegation.ts | 90 | function updateOrAddSyntheticEvent( | CODE |
| LOW | …ages/inferno-server/__tests__/creation.spec.server.tsx | 817 | async function expectServerToMatchClient(template: () => any) { | CODE |
| LOW | packages/inferno-server/src/utils.ts | 197 | export function renderFunctionalComponent(vNode: VNode, context): InfernoNode { | CODE |
| LOW | packages/inferno-test-utils/src/index.ts | 85 | export function isRenderedClassComponentOfType( | CODE |
| LOW | packages/inferno-test-utils/src/index.ts | 172 | export function scryRenderedDOMElementsWithClass( | CODE |
| LOW | packages/inferno-test-utils/src/index.ts | 200 | export function scryRenderedDOMElementsWithTag( | CODE |
| LOW | packages/inferno-test-utils/src/index.ts | 209 | export function scryRenderedVNodesWithType( | CODE |
| LOW | packages/inferno-test-utils/src/index.ts | 226 | export function findRenderedDOMElementWithClass( | CODE |
| LOW | packages/inferno-test-utils/src/index.ts | 238 | export function findRenderedDOMElementWithTag( | CODE |
| LOW | packages/inferno-test-utils/src/index.ts | 250 | export function findRenderedVNodeWithType( | CODE |
| LOW | packages/inferno-redux/src/components/Provider.ts | 50 | function componentWillReceiveProps(nextProps) { | CODE |
| LOW | packages/inferno-router/src/Switch.ts | 34 | function extractFirstMatchFromChildren( | CODE |
| LOW | packages/inferno-router/src/resolveLoaders.ts | 261 | // function convertFormDataToSearchParams(formData: FormData): URLSearchParams { | COMMENT |
| LOW | packages/inferno-animation/readme.md | 276 | export function animateModalOnWillDisappear(dom, callback, onClosed) { | CODE |
| LOW | …rno-animation/__tests__/animatedMoveComponent.spec.tsx | 13 | function waitForAnimationAndContinue(condition, callback, arg1?): void { | CODE |
| LOW | …rno-animation/__tests__/animatedMoveComponent.spec.tsx | 168 | function waitForAnimationAndContinue(condition, callback, arg1?): void { | CODE |
| LOW | …erno-animation/__tests__/animatedAllComponent.spec.tsx | 18 | function waitForAnimationAndContinue(condition, callback, arg1?: any): void { | CODE |
| LOW | …erno-animation/__tests__/animatedAllComponent.spec.tsx | 173 | function waitForAnimationAndContinue(condition, callback, arg1?): void { | CODE |
| LOW | …inferno-animation/__tests__/animatedComponent.spec.tsx | 17 | function waitForAnimationAndContinue(condition, callback, arg1?): void { | CODE |
| LOW | …inferno-animation/__tests__/animatedComponent.spec.tsx | 172 | function waitForAnimationAndContinue(condition, callback, arg1?): void { | CODE |
| LOW | packages/inferno-animation/src/utils.ts | 415 | export function registerTransitionListener( | CODE |
| LOW | packages/inferno-animation/src/animationCoordinator.ts | 57 | export function consumeGlobalAnimationSource( | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| CRITICAL | …es/inferno-create-element/__tests__/components.spec.ts | 194 | container.firstChild.firstChild.firstChild.firstChild.getAttribute( | CODE |
| CRITICAL | …es/inferno-create-element/__tests__/components.spec.ts | 213 | container.firstChild.firstChild.firstChild.firstChild.getAttribute( | CODE |
| CRITICAL | …es/inferno-create-element/__tests__/components.spec.ts | 278 | container.firstChild.firstChild.firstChild.firstChild.getAttribute( | CODE |
| CRITICAL | …es/inferno-create-element/__tests__/components.spec.ts | 298 | container.firstChild.firstChild.firstChild.firstChild.getAttribute( | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | docs/uibench/custom-uibench.js | 261 | } | COMMENT |
| LOW | docs/uibench/custom-uibench.js | 281 | // } | COMMENT |
| LOW | docs/uibench/custom-uibench.js | 301 | // console.log = logFn; | COMMENT |
| LOW | docs/uibench/custom-uibench.js | 321 | // throw new Error("Spec test failed: invalid data-id attribute in the AnimBox"); | COMMENT |
| LOW | docs/uibench/custom-uibench.js | 341 | // } | COMMENT |
| LOW | docs/uibench/custom-uibench.js | 361 | // if (mainTag.length !== 1) { | COMMENT |
| LOW | docs/uibench/custom-uibench.js | 381 | // } | COMMENT |
| LOW | docs/uibench/custom-uibench.js | 401 | // onUpdate(initialState, "init"); | COMMENT |
| LOW | docs/uibench/custom-uibench.js | 421 | // tableRows = document.getElementsByClassName("TableRow"); | COMMENT |
| LOW | scripts/fakedom/uibench-reactlike/start.js | 1 | import {writeFile} from 'fs'; | COMMENT |
| LOW | scripts/fakedom/uibench-reactlike/start.js | 21 | // totalEverything += currentNode.selfSize; | COMMENT |
| LOW | …nferno-compat/__tests__/ReactMountDestruction.spec.tsx | 41 | expect(secondRootDiv.firstChild).toBeNull(); | COMMENT |
| LOW | …nferno-compat/__tests__/ReactMountDestruction.spec.tsx | 61 | // 'unmount was rendered by React and is not a top-level container. You ' + | COMMENT |
| LOW | …nferno-compat/__tests__/ReactMountDestruction.spec.tsx | 81 | // ReactDOM.unmountComponentAtNode(nonRootDiv); | COMMENT |
| LOW | …ckages/inferno-compat/__tests__/ReactChildren.spec.tsx | 201 | const numberOfChildren = ReactChildren.count(instance.children); | COMMENT |
| LOW | …ckages/inferno-compat/__tests__/ReactChildren.spec.tsx | 221 | // ReactFragment.create({ | COMMENT |
| LOW | packages/inferno-compat/__tests__/ReactMount.spec.tsx | 121 | // container.innerHTML = ' ' + ReactDOMServer.renderToString(<div />); | COMMENT |
| LOW | packages/inferno-compat/__tests__/ReactMount.spec.tsx | 141 | // var div = document.createElement('div'); | COMMENT |
| LOW | …ages/inferno-compat/__tests__/ReactMultiChild.spec.tsx | 201 | COMMENT | |
| LOW | …ages/inferno-compat/__tests__/ReactMultiChild.spec.tsx | 221 | // ReactDOMFeatureFlags.useCreateElement = false; | COMMENT |
| LOW | …ages/inferno-compat/__tests__/ReactMultiChild.spec.tsx | 241 | // // Warm the cache used by `getMarkupWrap`. | COMMENT |
| LOW | …ages/inferno-compat/__tests__/ReactMultiChild.spec.tsx | 261 | // expect(setInnerHTML.calls.count()).toBe(callCountOnMount + 1); | COMMENT |
| LOW | packages/inferno-compat/__tests__/lifecycle.spec.tsx | 221 | // update | COMMENT |
| LOW | packages/inferno-compat/__tests__/lifecycle.spec.tsx | 241 | // expect(calls.argsFor(++i)).toEqual(['11']); | COMMENT |
| LOW | …ages/inferno-compat/__tests__/ReactJSXElement.spec.tsx | 61 | expect(element.props.foo).toBe(1); | COMMENT |
| LOW | …ages/inferno-compat/__tests__/ReactJSXElement.spec.tsx | 81 | // var expectation = {foo:'56'}; | COMMENT |
| LOW | …ages/inferno-compat/__tests__/ReactJSXElement.spec.tsx | 101 | // it('overrides children if null is provided as a JSX child', function() { | COMMENT |
| LOW | …ckages/inferno-create-element/__tests__/select.spec.ts | 101 | // const template = (val) => createElement('select', { | COMMENT |
| LOW | …ckages/inferno-create-element/__tests__/select.spec.ts | 121 | // render(template(undefined), container); | COMMENT |
| LOW | …es/inferno-redux/__tests__/components/connect.spec.tsx | 1641 | }); | COMMENT |
| LOW | …es/inferno-redux/__tests__/components/connect.spec.tsx | 1661 | // // mapStateToProps | COMMENT |
| LOW | …es/inferno-redux/__tests__/components/connect.spec.tsx | 1681 | // expect(spyValue).toMatch(errorMsg); | COMMENT |
| LOW | …es/inferno-redux/__tests__/components/connect.spec.tsx | 1701 | // | COMMENT |
| LOW | packages/inferno-redux/src/connect/wrapMapToProps.ts | 21 | // therefore not reporting its length accurately.. | COMMENT |
| LOW | packages/inferno-router/src/resolveLoaders.ts | 261 | // function convertFormDataToSearchParams(formData: FormData): URLSearchParams { | COMMENT |
| LOW | .github/COMMIT_TEMPLATE.md | 1 | # <type>: (If applied, this commit will...) <subject> (Max 50 char) | COMMENT |
| LOW | .github/COMMIT_TEMPLATE.md | 21 | # Remember to | COMMENT |
| LOW | .github/workflows/codeql-analysis.yml | 1 | # For most projects, this workflow file will not need changing; you simply need | COMMENT |
| LOW | .github/workflows/codeql-analysis.yml | 61 | # ℹ️ Command-line programs to run using the OS shell. | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | .github/COMMIT_TEMPLATE.md | 20 | # -------------------- | COMMENT |
| MEDIUM | .github/COMMIT_TEMPLATE.md | 28 | # -------------------- | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | packages/inferno/__tests__/booleanAttributes.spec.tsx | 97 | // The obsolete scoped and seamless have no DOM property left, only the attribute | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | docs/dbmonster/ENV.js | 136 | function getData(keepIdentity) { | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | browser/inferno.babel.umd.10.0.0.min.js | 1 | !function(e,t){"object"===typeof exports&&"undefined"!==typeof module?module.exports=t():"function"===typeof define&&def | CODE |