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Frontend · Automation / AGENT SKILL
codegen
0
Generate code from json-render UI specifications and build custom code exporters.
Code generation utilities for json-render. Use when generating code from UI specs, building custom code exporters, traversing specs, or serializing props for @json-render/codegen.
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Original instructions from the publisher’s SKILL.md
# @json-render/codegen
Framework-agnostic utilities for generating code from json-render UI trees. Use these to build custom code exporters for Next.js, Remix, or other frameworks.
## Installation
```bash
npm install @json-render/codegen
```
## Tree Traversal
```typescript
import {
traverseSpec,
collectUsedComponents,
collectStatePaths,
collectActions,
} from "@json-render/codegen";
// Walk the spec depth-first
traverseSpec(spec, (element, key, depth, parent) => {
console.log(`${" ".repeat(depth * 2)}${key}: ${element.type}`);
});
// Get all component types used
const components = collectUsedComponents(spec);
// Set { "Card", "Metric", "Button" }
// Get all state paths referenced
const statePaths = collectStatePaths(spec);
// Set { "analytics/revenue", "user/name" }
// Get all action names
const actions = collectActions(spec);
// Set { "submit_form", "refresh_data" }
```
## Serialization
```typescript
import {
serializePropValue,
serializeProps,
escapeString,
type SerializeOptions,
} from "@json-render/codegen";
// Serialize a single value
serializePropValue("hello");
// { value: '"hello"', needsBraces: false }
serializePropValue({ $state: "/user/name" });
// { value: '{ $state: "/user/name" }', needsBraces: true }
// Serialize props for JSX
serializeProps({ title: "Dashboard", columns: 3, disabled: true });
// 'title="Dashboard" columns={3} disabled'
// Escape strings for code
escapeString('hello "world"');
// 'hello \"world\"'
```
### SerializeOptions
```typescript
interface SerializeOptions {
quotes?: "single" | "double";
indent?: number;
}
```
## Types
```typescript
import type { GeneratedFile, CodeGenerator } from "@json-render/codegen";
const myGenerator: CodeGenerator = {
generate(spec) {
return [
{ path: "package.json", content: "..." },
{ path: "app/page.tsx", content: "..." },
];
},
};
```
## Building a Custom Generator
```typescript
import {
collectUsedComponents,
collectStatePaths,
traverseSpec,
serializeProps,
type GeneratedFile,
} from "@json-render/codegen";
import type { Spec } from "@json-render/core";
export function generateNextJSProject(spec: Spec): GeneratedFile[] {
const files: GeneratedFile[] = [];
const components = collectUsedComponents(spec);
// Generate package.json, component files, main page...
return files;
}
```