packages/babel-template/src/string.js
// @flow
import type { Formatter } from "./formatters";
import { normalizeReplacements, type TemplateOpts } from "./options";
import parseAndBuildMetadata from "./parse";
import populatePlaceholders from "./populate";
export default function stringTemplate<T>(
formatter: Formatter<T>,
code: string,
opts: TemplateOpts,
): mixed => T {
code = formatter.code(code);
let metadata;
return (arg?: mixed) => {
const replacements = normalizeReplacements(arg);
if (!metadata) metadata = parseAndBuildMetadata(formatter, code, opts);
return formatter.unwrap(populatePlaceholders(metadata, replacements));
};
}