postcss-calc
Version:
PostCSS plugin to reduce calc()
124 lines (123 loc) • 3.56 kB
TypeScript
export type Num = {
type: 'Num';
value: number;
};
export type Dim = {
type: 'Dim';
value: number;
unit: string;
rawUnit?: string;
};
export type Ident = {
type: 'Ident';
name: string;
rawName?: string;
};
export type Call = {
type: 'Call';
name: string;
args: Node[];
rawName?: string;
};
export type OpaqueComponent = string | Node | OpaqueComponent[];
export type OpaqueCall = {
type: 'OpaqueCall';
name: string;
components: OpaqueComponent[];
rawName?: string;
};
export type SumTerm = {
sign: 1 | -1;
node: Node;
};
export type Sum = {
type: 'Sum';
terms: SumTerm[];
grouped?: boolean;
};
export type ProductFactor = {
exponent: 1 | -1;
node: Node;
};
export type Product = {
type: 'Product';
factors: ProductFactor[];
grouped?: boolean;
};
export type Node = Num | Dim | Ident | Call | OpaqueCall | Sum | Product;
/**
* @typedef {{type: 'Num', value: number}} Num
* @typedef {{type: 'Dim', value: number, unit: string, rawUnit?: string}} Dim
* @typedef {{type: 'Ident', name: string, rawName?: string}} Ident
* @typedef {{type: 'Call', name: string, args: Node[], rawName?: string}} Call
* @typedef {string | Node | OpaqueComponent[]} OpaqueComponent
* @typedef {{type: 'OpaqueCall', name: string, components: OpaqueComponent[], rawName?: string}} OpaqueCall
* @typedef {{sign: 1 | -1, node: Node}} SumTerm Sign is always +1 when node is Num or Dim.
* @typedef {{type: 'Sum', terms: SumTerm[], grouped?: boolean}} Sum
* @typedef {{exponent: 1 | -1, node: Node}} ProductFactor exponent +1 = numerator, -1 = denominator.
* @typedef {{type: 'Product', factors: ProductFactor[], grouped?: boolean}} Product
* @typedef {Num | Dim | Ident | Call | OpaqueCall | Sum | Product} Node
*/
/**
* @param {number} value
* @return {Num}
*/
declare function num(value: number): Num;
/**
* @param {number} value
* @param {string} unit
* @param {string} [rawUnit]
* @return {Dim}
*/
declare function dim(value: number, unit: string, rawUnit?: string): Dim;
/**
* @param {string} name
* @param {string} [rawName]
* @return {Ident}
*/
declare function ident(name: string, rawName?: string): Ident;
/**
* @param {string} name
* @param {Node[]} args
* @param {string} [rawName]
* @return {Call}
*/
declare function call(name: string, args: Node[], rawName?: string): Call;
/**
* @param {string} name
* @param {OpaqueComponent[]} components
* @param {string} [rawName]
* @return {OpaqueCall}
*/
declare function opaqueCall(name: string, components: OpaqueComponent[], rawName?: string): OpaqueCall;
/**
* @param {SumTerm[]} rawTerms
* @return {Node}
*/
declare function mkSum(rawTerms: SumTerm[]): Node;
/**
* @param {ProductFactor[]} rawFactors
* @return {Node}
*/
declare function mkProduct(rawFactors: ProductFactor[]): Node;
/**
* Mark a node as a source parenthesized group. A Sum or Product keeps its
* structure; any other node becomes a single-factor grouped Product.
* @param {Node} node
* @return {Node}
*/
declare function mkGroup(node: Node): Node;
/**
* Group a parenthesized expression when its tokens must stay bound: a sum, or
* a product around a substitution function.
* @param {Node} node
* @return {Node}
*/
declare function groupSubstitution(node: Node): Node;
/**
* Negate any node, preserving canonical form.
* @param {Node} node
* @return {Node}
*/
declare function negate(node: Node): Node;
export { num, dim, ident, call, opaqueCall, mkSum, mkProduct, mkGroup, groupSubstitution, negate, };