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| export type ObjectLocationSegment = | |
| | { readonly kind: 'property'; readonly name: string } | |
| | { readonly kind: 'index'; readonly index: number }; | |
| export type JsonFieldNamingProfile = 'camelCase' | 'snake_case' | 'PascalCase'; | |
| function lowerCamel(name: string): string { | |
| const parts = name.split('_'); | |
| return parts[0] + parts.slice(1).map(part => part ? part[0].toUpperCase() + part.slice(1) : '').join(''); | |
| } | |
| export function renderJsonFieldName(name: string, profile: JsonFieldNamingProfile): string { | |
| if (profile === 'snake_case') return name; | |
| const camel = lowerCamel(name); | |
| if (profile === 'camelCase' || !camel) return camel; | |
| return camel[0].toUpperCase() + camel.slice(1); | |
| } | |
| function escapeJsonPointer(value: string): string { | |
| return value.replace(/~/g, '~0').replace(/\//g, '~1'); | |
| } | |
| /** A casing-neutral location expressed with canonical KSML property names. */ | |
| export class ObjectLocation { | |
| private constructor(public readonly segments: readonly ObjectLocationSegment[]) {} | |
| static root(): ObjectLocation { return new ObjectLocation([]); } | |
| static property(name: string): ObjectLocation { return ObjectLocation.root().property(name); } | |
| property(name: string): ObjectLocation { | |
| return new ObjectLocation([...this.segments, { kind: 'property', name }]); | |
| } | |
| index(index: number): ObjectLocation { | |
| return new ObjectLocation([...this.segments, { kind: 'index', index }]); | |
| } | |
| prefixedBy(prefix: ObjectLocation): ObjectLocation { | |
| return new ObjectLocation([...prefix.segments, ...this.segments]); | |
| } | |
| modelPath(): string { | |
| return this.render(name => name); | |
| } | |
| nativePath(): string { | |
| return this.render(lowerCamel); | |
| } | |
| instancePath(profile: JsonFieldNamingProfile = 'camelCase'): string { | |
| return this.segments.map(segment => segment.kind === 'index' | |
| ? String(segment.index) | |
| : escapeJsonPointer(renderJsonFieldName(segment.name, profile))).map(value => `/${value}`).join(''); | |
| } | |
| toString(): string { return this.nativePath(); } | |
| private render(propertyName: (name: string) => string): string { | |
| let result = ''; | |
| for (const segment of this.segments) { | |
| if (segment.kind === 'index') result += `[${segment.index}]`; | |
| else result += `${result ? '.' : ''}${propertyName(segment.name)}`; | |
| } | |
| return result; | |
| } | |
| } | |