@wordpress/blocks/build-module/api/parser/apply-block-deprecated-versions.js

Block API for WordPress.

// packages/blocks/src/api/parser/apply-block-deprecated-versions.js
import { DEPRECATED_ENTRY_KEYS } from "../constants";
import { validateBlock } from "../validation";
import { getBlockAttributes } from "./get-block-attributes";
import { applyBuiltInValidationFixes } from "./apply-built-in-validation-fixes";
import { omit } from "../utils";
function stubFalse() {
  return false;
}
function applyBlockDeprecatedVersions(block, rawBlock, blockType) {
  const parsedAttributes = rawBlock.attrs;
  const { deprecated: deprecatedDefinitions } = blockType;
  if (!deprecatedDefinitions || !deprecatedDefinitions.length) {
    return block;
  }
  for (let i = 0; i < deprecatedDefinitions.length; i++) {
    const { isEligible = stubFalse } = deprecatedDefinitions[i];
    if (block.isValid && !isEligible(parsedAttributes, block.innerBlocks, {
      blockNode: rawBlock,
      block
    })) {
      continue;
    }
    const deprecatedBlockType = Object.assign(
      omit(blockType, DEPRECATED_ENTRY_KEYS),
      deprecatedDefinitions[i]
    );
    let migratedBlock = {
      ...block,
      attributes: getBlockAttributes(
        deprecatedBlockType,
        block.originalContent,
        parsedAttributes
      )
    };
    let [isValid] = validateBlock(migratedBlock, deprecatedBlockType);
    if (!isValid) {
      migratedBlock = applyBuiltInValidationFixes(
        migratedBlock,
        deprecatedBlockType
      );
      [isValid] = validateBlock(migratedBlock, deprecatedBlockType);
    }
    if (!isValid) {
      continue;
    }
    let migratedInnerBlocks = migratedBlock.innerBlocks;
    let migratedAttributes = migratedBlock.attributes;
    const { migrate } = deprecatedBlockType;
    if (migrate) {
      let migrated = migrate(migratedAttributes, block.innerBlocks);
      if (!Array.isArray(migrated)) {
        migrated = [migrated];
      }
      [
        migratedAttributes = parsedAttributes,
        migratedInnerBlocks = block.innerBlocks
      ] = migrated;
    }
    block = {
      ...block,
      attributes: migratedAttributes,
      innerBlocks: migratedInnerBlocks,
      isValid: true,
      validationIssues: []
    };
  }
  return block;
}
export {
  applyBlockDeprecatedVersions
};
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