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<h1><a href="../../index.html">All files</a> / <a href="index.html">src/utils</a> serialization.ts</h1>
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<span class="strong">100% </span>
<span class="quiet">Statements</span>
<span class='fraction'>38/38</span>
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<span class="strong">86.48% </span>
<span class="quiet">Branches</span>
<span class='fraction'>32/37</span>
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<span class="strong">100% </span>
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<span class='fraction'>11/11</span>
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<span class="strong">100% </span>
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<span class='fraction'>35/35</span>
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">/**
* Data serialization and type checking utilities
*/
import type { DesignToken, Component, Guideline } from '../types/index.js';
/**
* Type guard to check if an object is a DesignToken
*/
export function isDesignToken(obj: unknown): obj is DesignToken {
if (typeof obj !== 'object' || obj === null) return false;
const token = obj as Record<string, unknown>;
return (
typeof token.name === 'string' &&
(typeof token.value === 'string' || typeof token.value === 'number') &&
typeof token.category === 'string' &&
['color', 'typography', 'spacing', 'elevation', 'motion'].includes(token.category as string)
);
}
/**
* Type guard to check if an object is a Component
*/
export function isComponent(obj: unknown): obj is Component {
if (typeof obj !== 'object' || obj === null) return false;
const component = obj as Record<string, unknown>;
return (
typeof component.name === 'string' &&
typeof component.description === 'string' &&
typeof component.category === 'string' &&
Array.isArray(component.props) &&
Array.isArray(component.variants) &&
Array.isArray(component.examples) &&
Array.isArray(component.guidelines) &&
typeof component.accessibility === 'object'
);
}
/**
* Type guard to check if an object is a Guideline
*/
export function isGuideline(obj: unknown): obj is Guideline {
if (typeof obj !== 'object' || obj === null) return false;
const guideline = obj as Record<string, unknown>;
return (
typeof guideline.id === 'string' &&
typeof guideline.title === 'string' &&
typeof guideline.category === 'string' &&
typeof guideline.content === 'string' &&
Array.isArray(guideline.tags) &&
(guideline.lastUpdated instanceof Date || <span class="branch-6 cbranch-no" title="branch not covered" >typeof guideline.lastUpdated === 'string')</span>
);
}
/**
* Serialize a DesignToken to JSON-safe format
*/
export function serializeDesignToken(token: DesignToken): Record<string, unknown> {
return {
name: token.name,
value: token.value,
category: token.category,
description: token.description,
usage: token.usage,
deprecated: token.deprecated,
aliases: token.aliases
};
}
/**
* Serialize a Component to JSON-safe format
*/
export function serializeComponent(component: Component): Record<string, unknown> {
return {
name: component.name,
description: component.description,
category: component.category,
props: component.props,
variants: component.variants,
examples: component.examples,
guidelines: component.guidelines,
accessibility: component.accessibility
};
}
/**
* Serialize a Guideline to JSON-safe format
*/
export function serializeGuideline(guideline: Guideline): Record<string, unknown> {
return {
id: guideline.id,
title: guideline.title,
category: guideline.category,
content: guideline.content,
tags: guideline.tags,
lastUpdated: guideline.lastUpdated instanceof Date
? guideline.lastUpdated.toISOString()
: <span class="branch-1 cbranch-no" title="branch not covered" >guideline.lastUpdated,</span>
relatedComponents: guideline.relatedComponents,
relatedTokens: guideline.relatedTokens
};
}
/**
* Deserialize JSON data to DesignToken
*/
export function deserializeDesignToken(data: Record<string, unknown>): DesignToken {
return {
name: data.name as string,
value: data.value as string | number,
category: data.category as DesignToken['category'],
description: data.description as string | undefined,
usage: data.usage as string[] | undefined,
deprecated: data.deprecated as boolean | undefined,
aliases: data.aliases as string[] | undefined
};
}
/**
* Deserialize JSON data to Component
*/
export function deserializeComponent(data: Record<string, unknown>): Component {
return {
name: data.name as string,
description: data.description as string,
category: data.category as string,
props: data.props as Component['props'],
variants: data.variants as Component['variants'],
examples: data.examples as Component['examples'],
guidelines: data.guidelines as string[],
accessibility: data.accessibility as Component['accessibility']
};
}
/**
* Deserialize JSON data to Guideline
*/
export function deserializeGuideline(data: Record<string, unknown>): Guideline {
const lastUpdated = typeof data.lastUpdated === 'string'
? new Date(data.lastUpdated)
: <span class="branch-1 cbranch-no" title="branch not covered" >data.lastUpdated as Date;</span>
return {
id: data.id as string,
title: data.title as string,
category: data.category as string,
content: data.content as string,
tags: data.tags as string[],
lastUpdated,
relatedComponents: data.relatedComponents as string[] | undefined,
relatedTokens: data.relatedTokens as string[] | undefined
};
}
/**
* Safe JSON parsing with error handling
*/
export function safeJsonParse<T>(jsonString: string): { success: true; data: T } | { success: false; error: string } {
try {
const data = JSON.parse(jsonString) as T;
return { success: true, data };
} catch (error) {
return {
success: false,
error: error instanceof Error ? error.message : <span class="branch-1 cbranch-no" title="branch not covered" >'Unknown parsing error' </span>
};
}
}
/**
* Safe JSON stringification with error handling
*/
export function safeJsonStringify(data: unknown, indent?: number): { success: true; json: string } | { success: false; error: string } {
try {
const json = JSON.stringify(data, null, indent);
return { success: true, json };
} catch (error) {
return {
success: false,
error: error instanceof Error ? error.message : <span class="branch-1 cbranch-no" title="branch not covered" >'Unknown stringification error' </span>
};
}
}</pre></td></tr></table></pre>
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