FunctionDeclaration: function()

in packages/transform/src/hoist.js [85:124]

• 25 lines of code
• 2 McCabe index (conditional complexity)

    FunctionDeclaration: function(path) {
      let node = path.node;
      vars[node.id.name] = node.id;

      let assignment = t.expressionStatement(
        t.assignmentExpression(
          "=",
          t.clone(node.id),
          t.functionExpression(
            path.scope.generateUidIdentifierBasedOnNode(node),
            node.params,
            node.body,
            node.generator,
            node.expression
          )
        )
      );

      if (path.parentPath.isBlockStatement()) {
        // Insert the assignment form before the first statement in the
        // enclosing block.
        path.parentPath.unshiftContainer("body", assignment);

        // Remove the function declaration now that we've inserted the
        // equivalent assignment form at the beginning of the block.
        path.remove();
      } else {
        // If the parent node is not a block statement, then we can just
        // replace the declaration with the equivalent assignment form
        // without worrying about hoisting it.
        util.replaceWithOrRemove(path, assignment);
      }

      // Remove the binding, to avoid "duplicate declaration" errors when it will
      // be injected again.
      path.scope.removeBinding(node.id.name);

      // Don't hoist variables out of inner functions.
      path.skip();
    },