zod/v4/core/doc.js

TypeScript-first schema declaration and validation library with static type inference

export class Doc {
    constructor(args = []) {
        this.content = [];
        this.indent = 0;
        if (this)
            this.args = args;
    }
    indented(fn) {
        this.indent += 1;
        fn(this);
        this.indent -= 1;
    }
    write(arg) {
        if (typeof arg === "function") {
            arg(this, { execution: "sync" });
            arg(this, { execution: "async" });
            return;
        }
        const content = arg;
        const lines = content.split("\n").filter((x) => x);
        const minIndent = Math.min(...lines.map((x) => x.length - x.trimStart().length));
        const dedented = lines.map((x) => x.slice(minIndent)).map((x) => " ".repeat(this.indent * 2) + x);
        for (const line of dedented) {
            this.content.push(line);
        }
    }
    compile() {
        const F = Function;
        const args = this?.args;
        const content = this?.content ?? [``];
        const lines = [...content.map((x) => `  ${x}`)];
        // console.log(lines.join("\n"));
        return new F(...args, lines.join("\n"));
    }
}