@inlang/paraglide-js/dist/compiler/compile-pattern.js

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import { escapeForTemplateLiteral } from "../services/codegen/escape.js";
/**
 * Compiles a pattern into a template literal string.
 *
 * @example
 *   const pattern: Pattern = [
 * 	 { type: "text", value: "Your age is " },
 * 	 { type: "expression", arg: { type: "variable-reference", name: "age" } },
 *   ]
 *
 *   const { code } = compilePattern({ pattern, declarations: [{ type: "input-variable", name: "age" }] });
 *
 *   // code will be: `Your age is ${i.age}`
 */
export const compilePattern = (args) => {
    let result = "";
    for (const part of args.pattern) {
        if (part.type === "text") {
            result += escapeForTemplateLiteral(part.value);
        }
        else {
            if (part.arg.type === "variable-reference") {
                const declaration = args.declarations.find((decl) => decl.name === part.arg.name);
                if (declaration?.type === "input-variable") {
                    result += `\${i.${part.arg.name}}`;
                }
                else if (declaration?.type === "local-variable") {
                    result += `\${${part.arg.name}}`;
                }
                else {
                    throw new Error(`Variable reference "${part.arg.name}" not found in declarations`);
                }
            }
        }
    }
    return {
        code: `\`${result}\``,
        node: args.pattern,
    };
};