static createChildNode()

in packages/babel-plugin-fbt/src/fbt-nodes/FbtElementNode.js [300:350]

• 39 lines of code
• 6 McCabe index (conditional complexity)

  static createChildNode({
    moduleName,
    node,
  }: {|
    moduleName: JSModuleNameType,
    node: BabelNodeExpression,
  |}): FbtChildNode {
    // Some of these modules may cause dependency cycles with the current one.
    // So we must import them only on-demand rather than on initialization.
    // Don't worry, require() calls are cached.
    const FbtEnumNode = require('./FbtEnumNode');
    const FbtImplicitParamNode = require('./FbtImplicitParamNode');
    const FbtNameNode = require('./FbtNameNode');
    const FbtParamNode = require('./FbtParamNode');
    const FbtPluralNode = require('./FbtPluralNode');
    const FbtPronounNode = require('./FbtPronounNode');
    const FbtSameParamNode = require('./FbtSameParamNode');
    const FbtTextNode = require('./FbtTextNode');

    let fbtChildNode;
    const fbtChildNodeClasses = [
      FbtEnumNode,
      FbtNameNode,
      FbtParamNode,
      FbtPluralNode,
      FbtPronounNode,
      FbtSameParamNode,
      FbtTextNode,
    ];

    for (const Constructor of fbtChildNodeClasses) {
      fbtChildNode = Constructor.fromBabelNode({moduleName, node});
      if (fbtChildNode != null) {
        break;
      }
    }

    // Try to convert to FbtImplicitParamNode as a last resort
    if (fbtChildNode == null && isJSXElement(node)) {
      // Later on, we should only allow non-fbt JSX elements here for auto-wrapping.
      // fbt:param, fbt:pronoun, etc... should appear as children of it.
      fbtChildNode = FbtImplicitParamNode.fromBabelNode({moduleName, node});
    }

    if (fbtChildNode != null) {
      return fbtChildNode;
    }

    // TODO: T93968371 Refine error messages in FbtElementNode#createChildNode
    throw errorAt(node, `${moduleName}: unsupported babel node: ${node.type}`);
  }