/**
 * Copyright (c) 2025 Elara AI Pty Ltd
 * Dual-licensed under AGPL-3.0 and commercial license. See LICENSE for details.
 */
import type * as ts from "typescript";
import type { RuleContext } from "./types.js";
/**
 * Walk a call/member chain down to its base receiver — `a.b().c[d]` -> `a`. Used
 * to find the thing a chained expression is ultimately rooted on (e.g. to ask
 * whether a `$.if(...).else(...)` chain is rooted on the block builder `$`).
 */
export declare function chainRootReceiver(node: ts.Node, ctx: RuleContext): ts.Node;
/**
 * Does `body` EMIT East IR into the enclosing block — i.e. contain a call rooted
 * on the block builder `$` (`$.let`/`$.const`/`$(…)`/`$.assign`/`$.if`/…)? This
 * is the discriminator between a host loop that BUILDS East IR (abuse) and one
 * that only assembles a plain JS array/object (legitimate — the array is bound
 * once afterwards). It deliberately does NOT count mere East-`Expr` reads
 * (`p.x.get(k)` inside a `jsArray.push({...})`), and does not descend into a
 * nested East block callback (`data.map(($, x) => …)`) — that is its own scope.
 */
export declare function bodyBuildsEastIr(body: ts.Node, ctx: RuleContext): boolean;
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