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PassthroughFontResolver Class — astro Architecture

Architecture documentation for the PassthroughFontResolver class in utils.js from the astro codebase.

Class javascript IntegrationAdapters

Entity Profile

Dependency Diagram

graph TD
  b6a0ecd8_ebff_7ea1_d777_730d1e46877b["PassthroughFontResolver"]
  cf581885_d0e2_b165_a30e_db299dd301a8["utils.js"]
  b6a0ecd8_ebff_7ea1_d777_730d1e46877b -->|defined in| cf581885_d0e2_b165_a30e_db299dd301a8
  29aae4ec_3098_e518_5778_b26a1e8adc96["constructor()"]
  b6a0ecd8_ebff_7ea1_d777_730d1e46877b -->|method| 29aae4ec_3098_e518_5778_b26a1e8adc96
  cee8f92a_5749_0f9c_000d_6a4657b2e205["create()"]
  b6a0ecd8_ebff_7ea1_d777_730d1e46877b -->|method| cee8f92a_5749_0f9c_000d_6a4657b2e205
  080c0d0d_d8e4_44ec_a3df_8353a88c77aa["resolveFont()"]
  b6a0ecd8_ebff_7ea1_d777_730d1e46877b -->|method| 080c0d0d_d8e4_44ec_a3df_8353a88c77aa
  4fec4033_c80d_8a71_69e0_3807819bc659["listFonts()"]
  b6a0ecd8_ebff_7ea1_d777_730d1e46877b -->|method| 4fec4033_c80d_8a71_69e0_3807819bc659

Relationship Graph

Source Code

packages/astro/test/units/assets/fonts/utils.js lines 106–151

export class PassthroughFontResolver {
	/** @type {Map<string, import('../../../../dist/index.js').FontProvider<Record<string, any>>>} */
	#providers;

	/**
	 * @private
	 * @param {Map<string, import('../../../../dist/index.js').FontProvider<Record<string, any>>>} providers
	 */
	constructor(providers) {
		this.#providers = providers;
	}

	/**
	 * @param {{ families: Array<import('../../../../dist/assets/fonts/types').ResolvedFontFamily>; hasher: Hasher }} param0
	 */
	static async create({ families, hasher }) {
		/** @type {Map<string, import('../../../../dist/index.js').FontProvider<Record<string, any>>>} */
		const providers = new Map();
		for (const { provider } of families) {
			provider.name = `${provider.name}-${hasher.hashObject(provider.config ?? {})}`;
			providers.set(provider.name, /** @type {any} */ (provider));
		}
		const storage = new SpyStorage();
		await Promise.all(
			Array.from(providers.values()).map(async (provider) => {
				await provider.init?.({ storage, root: new URL(import.meta.url) });
			}),
		);
		return new PassthroughFontResolver(providers);
	}

	/**
	 * @param {import('../../../../dist/assets/fonts/types.js').ResolveFontOptions<Record<string, any>> & { provider: import('../../../../dist/index.js').FontProvider; }} param0
	 */
	async resolveFont({ provider, ...rest }) {
		const res = await this.#providers.get(provider.name)?.resolveFont(rest);
		return res?.fonts ?? [];
	}

	/**
	 * @param {{ provider: import('../../../../dist/index.js').FontProvider }} param0
	 */
	async listFonts({ provider }) {
		return await this.#providers.get(provider.name)?.listFonts?.();
	}
}

Domain

Defined In

Source

Frequently Asked Questions

What is the PassthroughFontResolver class?
PassthroughFontResolver is a class in the astro codebase, defined in packages/astro/test/units/assets/fonts/utils.js.
Where is PassthroughFontResolver defined?
PassthroughFontResolver is defined in packages/astro/test/units/assets/fonts/utils.js at line 106.

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