import type { Expression, Program, Span } from "@velarscript/compiler/extension";
export type LookStaticValue = {
    readonly kind: "number";
    readonly value: number;
} | {
    readonly kind: "unit";
    readonly value: number;
    readonly unit: string;
} | {
    readonly kind: "css";
    readonly value: string;
} | {
    readonly kind: "object";
    readonly properties: Readonly<Record<string, LookStaticValue>>;
};
export declare function isLookStaticValue(value: unknown): value is LookStaticValue;
/**
 * The static CSS a Look value lowers to at compile time: literals, unit values,
 * arithmetic over them, `velar/look` builder calls, and const bindings — local
 * or imported — that hold any of those. `keyframes:` needs the text itself
 * because a stop becomes a real `@keyframes` rule, while a Look property keeps
 * its runtime value; this is the one checker both spellings read, so a design
 * token written once works in both (D60 rule 151).
 */
export declare function lookStaticCssValue(expression: Expression, values?: ReadonlyMap<string, LookStaticValue>): string | null;
export declare function evaluateLookStaticExpression(expression: Expression, values: ReadonlyMap<string, LookStaticValue>): LookStaticValue | null;
/**
 * A module's folded Look constants: what each name holds, and where the
 * expression it folded from is written.
 *
 * D114 F9-web (WB-I7): a builder slot that refuses a folded constant has to
 * report at the initializer, because that is where the edit is — the argument
 * only names the binding. `sites` carries no entry for a constant this compile
 * imported: another module's line is not this compile's to point at.
 */
export interface LookStaticScope {
    readonly values: ReadonlyMap<string, LookStaticValue>;
    readonly sites: ReadonlyMap<string, Span>;
}
export declare function collectLookStaticScope(program: Program, imported?: ReadonlyMap<string, LookStaticValue>): LookStaticScope;
export declare function collectLookStaticValues(program: Program, imported?: ReadonlyMap<string, LookStaticValue>): ReadonlyMap<string, LookStaticValue>;
export declare function exportedLookStaticValues(program: Program): ReadonlyMap<string, LookStaticValue>;
export declare function lookStaticCss(value: LookStaticValue): string | null;
export declare function lookStaticIdentity(value: unknown): string;
//# sourceMappingURL=look-static.d.ts.map