DenReg/jsx-html/node/utils/normalizeChildren.ts

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2020-10-14 00:56:11 +00:00
import type { NullableChildType, ChildNodeType } from '../../types.ts';
import { TextNode } from '../TextNode.ts';
import { NODE_TYPE } from '../../constants.ts';
export function normalizeChildren(
children: NullableChildType[],
): ChildNodeType[] {
const result: any[] = [];
for (const child of children) {
if (child && typeof child !== 'boolean') {
if (typeof child === 'string' || typeof child === 'number') {
result.push(new TextNode(`${child}`));
} else if (Array.isArray(child)) {
normalizeChildren(child).forEach((normalized) =>
result.push(normalized),
);
} else if (
child.type === NODE_TYPE.ELEMENT ||
child.type === NODE_TYPE.TEXT ||
child.type === NODE_TYPE.COMPONENT
) {
result.push(child);
} else {
throw new TypeError(`Unrecognized node type: ${typeof child}`);
}
}
}
return result;
}