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fix: type_name union instead of string #47

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Merged
bartveneman merged 1 commit into from
Dec 17, 2025
Merged

fix: type_name union instead of string #47

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8 changes: 5 additions & 3 deletions src/css-node.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -49,7 +49,7 @@ import { CHAR_MINUS_HYPHEN, CHAR_PLUS, is_whitespace } from './string-utils'
import { parse_dimension } from './parse-utils'

// Type name lookup table - maps numeric type to CSSTree-compatible strings
export const TYPE_NAMES: Record<number, string> = {
export const TYPE_NAMES = {
[STYLESHEET]: 'StyleSheet',
[STYLE_RULE]: 'Rule',
[AT_RULE]: 'Atrule',
Expand Down Expand Up @@ -88,6 +88,8 @@ export const TYPE_NAMES: Record<number, string> = {
[PRELUDE_OPERATOR]: 'Operator',
} as const

export type TypeName = (typeof TYPE_NAMES)[keyof typeof TYPE_NAMES] | 'unknown'

// Node type constants (numeric for performance)
export type CSSNodeType =
| typeof STYLESHEET
Expand Down Expand Up @@ -145,7 +147,7 @@ export interface CloneOptions {
export type PlainCSSNode = {
// Core properties (always present)
type: number
type_name: string
type_name: TypeName
text: string
children: PlainCSSNode[]

Expand Down Expand Up @@ -196,7 +198,7 @@ export class CSSNode {
}

// Get node type as human-readable string
get type_name(): string {
get type_name(): TypeName {
return TYPE_NAMES[this.type] || 'unknown'
}

Expand Down