astro/dist/runtime/server/render/head-propagation/runtime.js

Astro is a modern site builder with web best practices, performance, and DX front-of-mind.

import { collectPropagatedHeadParts } from "../../../../core/head-propagation/buffer.js";
import {
  getPropagationHint as getHint,
  isPropagatingHint
} from "../../../../core/head-propagation/resolver.js";
import {
  shouldRenderInstruction as shouldRenderInstructionByPolicy
} from "../../../../core/head-propagation/policy.js";
import { isHeadAndContent } from "../astro/head-and-content.js";
function getPropagationHint(result, factory) {
  return getHint(result, factory);
}
function registerIfPropagating(result, factory, instance) {
  if (factory.propagation === "self" || factory.propagation === "in-tree") {
    result._metadata.propagators.add(
      instance
    );
    return;
  }
  if (factory.moduleId) {
    const hint = result.componentMetadata.get(factory.moduleId)?.propagation;
    if (isPropagatingHint(hint ?? "none")) {
      result._metadata.propagators.add(
        instance
      );
    }
  }
}
async function bufferPropagatedHead(result) {
  const collected = await collectPropagatedHeadParts({
    propagators: result._metadata.propagators,
    result,
    isHeadAndContent
  });
  result._metadata.extraHead.push(...collected);
}
function shouldRenderInstruction(type, state) {
  return shouldRenderInstructionByPolicy(type, state);
}
function getInstructionRenderState(result) {
  return {
    hasRenderedHead: result._metadata.hasRenderedHead,
    headInTree: result._metadata.headInTree,
    partial: result.partial
  };
}
export {
  bufferPropagatedHead,
  getInstructionRenderState,
  getPropagationHint,
  registerIfPropagating,
  shouldRenderInstruction
};