✨ feat(vscode): 代码阅读预览顶部加块筛选栏
语言插件按和语言无关的 id 报块属性(通用的由宿主从 facts 推),翻译插件起名,webview 只按 id 筛; 筛选整个工作区共用、记在 workspaceState;JavaScript 不再显示「抽象:否」「仅类型:否」
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import type { AttributeNames, BlockAttributes, CodeBlock, CommonAttribute } from './contract'
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import { COMMON_ATTRIBUTES } from './contract'
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/** 这份文件里出现过的一个属性值:显示名和有几块是这个值。 */
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export interface AttributeValueCount {
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id: string
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name: string
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count: number
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}
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/** 这份文件里出现过的一个属性:显示名,出现过的值按第一次出现的先后排。 */
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export interface FileAttribute {
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id: string
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name: string
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values: AttributeValueCount[]
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}
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function flag(value: boolean | undefined): string | undefined {
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return value === undefined ? undefined : String(value)
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}
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/** 从 facts 推出的通用属性(kind 以外);facts 里没填的是 undefined。 */
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function factAttributes(block: CodeBlock): Partial<Record<CommonAttribute, string>> {
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switch (block.kind) {
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case 'function':
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return { access: block.facts.access, async: flag(block.facts.async) }
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case 'class':
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return { access: block.facts.access, abstract: flag(block.facts.abstract) }
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case 'import':
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return { typeOnly: flag(block.facts.typeOnly) }
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case 'const':
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case 'variable':
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return { access: block.facts.access }
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default:
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return {}
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}
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}
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/** 块的筛选属性:从 facts 推出的通用属性,叠上语言插件自己报的(同一属性以它为准),kind 总是块的种类。 */
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export function blockAttributes(block: CodeBlock): BlockAttributes {
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const derived = Object.entries(factAttributes(block)).filter((entry): entry is [string, string] => entry[1] !== undefined)
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return { ...Object.fromEntries(derived), ...block.attributes, kind: block.kind }
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}
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interface Attributed {
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attributes: BlockAttributes
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children: Attributed[]
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}
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/**
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* 整份文件(所有层的块)里出现过的属性,每个值有几块。通用属性按 COMMON_ATTRIBUTES 的顺序排在前面,
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* 语言自己的属性按第一次出现的先后排在后面。显示名取翻译插件的 names,没给的用 id。
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*/
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export function fileAttributes(blocks: readonly Attributed[], names: AttributeNames | undefined): FileAttribute[] {
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const counts = new Map<string, Map<string, number>>()
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const visit = (list: readonly Attributed[]): void => {
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for (const block of list) {
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for (const [id, value] of Object.entries(block.attributes)) {
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const values = counts.get(id) ?? new Map<string, number>()
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counts.set(id, values.set(value, (values.get(value) ?? 0) + 1))
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}
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visit(block.children)
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}
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}
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visit(blocks)
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const common: readonly string[] = COMMON_ATTRIBUTES
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const rank = (id: string): number => common.includes(id) ? common.indexOf(id) : common.length
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// sort 是稳定的:语言自己的属性同排在最后,保持第一次出现的先后
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return [...counts].sort(([a], [b]) => rank(a) - rank(b)).map(([id, values]) => ({
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id,
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name: names?.attributes[id] ?? id,
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values: [...values].map(([value, count]) => ({ id: value, name: names?.values[id]?.[value] ?? value, count })),
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}))
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}
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