ctx.js

function createCtx() {
  const ctx = {};
  return {
    useCtx: () => ctx["ctx"] ?? null,
    defineCtx: (val, callback) => {
      ctx["ctx"] = val;
      return callback();
    },
  };
}

const { defineCtx: defineMeatCtx, useCtx: useMeatCtx } = createCtx();
const { defineCtx: defineShapeCtx, useCtx: useShapeCtx } = createCtx();

function meat() {
  const meat = useMeatCtx();
  const shape = useShapeCtx();
  return `1 all ${meat} ${shape}`;
}

function beefPatty() {
  const r = defineMeatCtx("beef", () => defineShapeCtx("patty", () => meat()));

  console.log(r);
}

beefPatty();