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import {List, ValueObject} from 'immutable';
import {SassBoolean} from './boolean';
import {SassCalculation} from './calculation';
import {SassColor} from './color';
import {SassFunction} from './function';
import {ListSeparator} from './list';
import {SassMap} from './map';
import {SassMixin} from './mixin';
import {SassNumber} from './number';
import {SassString} from './string';
export {SassArgumentList} from './argument_list';
export {SassBoolean, sassTrue, sassFalse} from './boolean';
export {
SassCalculation,
CalculationValue,
CalculationOperator,
CalculationOperation,
CalculationInterpolation,
} from './calculation';
export {
SassColor,
ColorSpaceHsl,
ChannelNameHsl,
ColorSpaceHwb,
ChannelNameHwb,
ColorSpaceLab,
ChannelNameLab,
ColorSpaceLch,
ChannelNameLch,
ColorSpaceRgb,
ChannelNameRgb,
ColorSpaceXyz,
ChannelNameXyz,
ChannelName,
GamutMapMethod,
KnownColorSpace,
PolarColorSpace,
RectangularColorSpace,
HueInterpolationMethod,
} from './color';
export {SassFunction} from './function';
export {SassList, ListSeparator} from './list';
export {SassMap} from './map';
export {SassMixin} from './mixin';
export {SassNumber} from './number';
export {SassString} from './string';
/**
* Sass's [`null` value](https://sass-lang.com/documentation/values/null).
*
* @category Custom Function
*/
export const sassNull: Value;
/**
* The abstract base class of Sass's value types.
*
* This is passed to and returned by {@link CustomFunction}s, which are passed
* into the Sass implementation using {@link Options.functions}.
*
* @category Custom Function
*/
export abstract class Value implements ValueObject {
protected constructor();
/**
* This value as a list.
*
* All SassScript values can be used as lists. Maps count as lists of pairs,
* and all other values count as single-value lists.
*
* @returns An immutable {@link List} from the [`immutable`
* package](https://immutable-js.com/).
*/
get asList(): List<Value>;
/**
* Whether this value as a list has brackets.
*
* All SassScript values can be used as lists. Maps count as lists of pairs,
* and all other values count as single-value lists.
*/
get hasBrackets(): boolean;
/**
* Whether the value counts as `true` in an `@if` statement and other
* contexts.
*/
get isTruthy(): boolean;
/**
* Returns JavaScript's `null` value if this is {@link sassNull}, and returns
* `this` otherwise.
*/
get realNull(): null | Value;
/**
* The separator for this value as a list.
*
* All SassScript values can be used as lists. Maps count as lists of pairs,
* and all other values count as single-value lists.
*/
get separator(): ListSeparator;
/**
* Converts `sassIndex` into a JavaScript-style index into the list returned
* by {@link asList}.
*
* Sass indexes are one-based, while JavaScript indexes are zero-based. Sass
* indexes may also be negative in order to index from the end of the list.
*
* @param sassIndex - The Sass-style index into this as a list.
* @param name - The name of the function argument `sassIndex` came from
* (without the `$`) if it came from an argument. Used for error reporting.
* @throws `Error` If `sassIndex` isn't a number, if that number isn't an
* integer, or if that integer isn't a valid index for {@link asList}.
*/
sassIndexToListIndex(sassIndex: Value, name?: string): number;
/**
* Returns the value at index `index` in this value as a list, or `undefined`
* if `index` isn't valid for this list.
*
* All SassScript values can be used as lists. Maps count as lists of pairs,
* and all other values count as single-value lists.
*
* This is a shorthand for `this.asList.get(index)`, although it may be more
* efficient in some cases.
*
* **Heads up!** This method uses the same indexing conventions as the
* `immutable` package: unlike Sass the index of the first element is 0, but
* like Sass negative numbers index from the end of the list.
*/
get(index: number): Value | undefined;
/**
* Throws if `this` isn't a {@link SassBoolean}.
*
* **Heads up!** Functions should generally use {@link isTruthy} rather than
* requiring a literal boolean.
*
* @param name - The name of the function argument `this` came from (without
* the `$`) if it came from an argument. Used for error reporting.
*/
assertBoolean(name?: string): SassBoolean;
/**
* Throws if `this` isn't a {@link SassCalculation}.
*
* @param name - The name of the function argument `this` came from (without
* the `$`) if it came from an argument. Used for error reporting.
*/
assertCalculation(name?: string): SassCalculation;
/**
* Throws if `this` isn't a {@link SassColor}.
*
* @param name - The name of the function argument `this` came from (without
* the `$`) if it came from an argument. Used for error reporting.
*/
assertColor(name?: string): SassColor;
/**
* Throws if `this` isn't a {@link SassFunction}.
*
* @param name - The name of the function argument `this` came from (without
* the `$`) if it came from an argument. Used for error reporting.
*/
assertFunction(name?: string): SassFunction;
/**
* Throws if `this` isn't a {@link SassMap}.
*
* @param name - The name of the function argument `this` came from (without
* the `$`) if it came from an argument. Used for error reporting.
*/
assertMap(name?: string): SassMap;
/**
* Throws if `this` isn't a {@link SassMixin}.
*
* @param name - The name of the function argument `this` came from (without
* the `$`) if it came from an argument. Used for error reporting.
*/
assertMixin(name?: string): SassMixin;
/**
* Throws if `this` isn't a {@link SassNumber}.
*
* @param name - The name of the function argument `this` came from (without
* the `$`) if it came from an argument. Used for error reporting.
*/
assertNumber(name?: string): SassNumber;
/**
* Throws if `this` isn't a {@link SassString}.
*
* @param name - The name of the function argument `this` came from (without
* the `$`) if it came from an argument. Used for error reporting.
*/
assertString(name?: string): SassString;
/**
* Returns `this` as a map if it counts as one (empty lists count as empty
* maps) or `null` if it doesn't.
*/
tryMap(): SassMap | null;
/** Returns whether `this` represents the same value as `other`. */
equals(other: Value): boolean;
/** Returns a hash code that can be used to store `this` in a hash map. */
hashCode(): number;
/** @hidden */
toString(): string;
}