Function resolveRef

packages/lang-core/src/parser/materialize.ts:42–73

* Resolve a Ref node: inline from symbol table, detect cycles, emit RuntimeRef * for Query/Mutation declarations. Shared by materializeValue and materializeExpr.

(name: string, ctx: MaterializeCtx, mode: "value" | "expr")

 * for Query/Mutation declarations. Shared by materializeValue and materializeExpr.
 */
function resolveRef(name: string, ctx: MaterializeCtx, mode: "value" | "expr"): unknown | ASTNode {
  if (ctx.visited.has(name)) {
    ctx.unres.push(name);
    return mode === "expr" ? { k: "Ph", n: name } : null;
  }
  if (!ctx.syms.has(name)) {
    ctx.unres.push(name);
    return mode === "expr" ? { k: "Ph", n: name } : null;
  }
  const target = ctx.syms.get(name)!;
  ctx.unreached?.delete(name);
  // Query/Mutation declarations → RuntimeRef (resolved at runtime by evaluator)
  if (target.k === "Comp" && isReservedCall(target.name)) {
    const refType =
      target.name === RESERVED_CALLS.Mutation ? ("mutation" as const) : ("query" as const);
    return { k: "RuntimeRef", n: name, refType };
  }
  ctx.visited.add(name);
  const prevStatementId = ctx.currentStatementId;
  ctx.currentStatementId = name;
  try {
    const result = mode === "value" ? materializeValue(target, ctx) : materializeExpr(target, ctx);
    // Tag ElementNode with its source statement name
    if (mode === "value" && isElementNode(result)) {
      result.statementId = name;
    }
    return result;
  } finally {
    ctx.currentStatementId = prevStatementId;
    ctx.visited.delete(name);
  }
}

/**
 * If node is a lazy builtin like Each(arr, varName, template), temporarily