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refactor IDV parser to use map why not

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Tangent Wantwight 2024-07-20 00:08:32 -04:00
parent 6c6c9386be
commit af07866ac0
2 changed files with 11 additions and 8 deletions
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18
lib/idv.ts
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@ -7,7 +7,7 @@ const LEADING_WHITESPACE = /^([ \t]+)/;
const ENTRY = /^(.+?):\s*(.*)/; const ENTRY = /^(.+?):\s*(.*)/;
export class Idv { export class Idv {
collections: Record<string, undefined | [string, string[]][]> = {}; collections: Map<string, undefined | [string, string[]][]> = new Map();
public static parse(input: string): Idv { public static parse(input: string): Idv {
const idv = new Idv(); const idv = new Idv();
@ -53,14 +53,16 @@ export class Idv {
if (matches) { if (matches) {
const [, collection, distinguisher] = matches; const [, collection, distinguisher] = matches;
if (this.collections[collection] == undefined) { if (!this.collections.has(collection)) {
this.collections[collection] = []; this.collections.set(collection, []);
} }
currentDocument = []; currentDocument = [];
currentIndent = undefined; currentIndent = undefined;
// TODO: implement backslash escaping in the distinguisher // TODO: implement backslash escaping in the distinguisher
this.collections[collection].push([distinguisher, currentDocument]); this.collections
.get(collection)!
.push([distinguisher, currentDocument]);
} else { } else {
throw new Error("Failed to parse a property"); throw new Error("Failed to parse a property");
} }
@ -71,12 +73,12 @@ export class Idv {
} }
public getProperty<T>(name: string, parse: UnionParser<T>): T | undefined { public getProperty<T>(name: string, parse: UnionParser<T>): T | undefined {
const firstEntry = this.collections[name]?.[0]; const firstEntry = this.collections.get(name)?.[0];
return firstEntry && parse(firstEntry[0], firstEntry[1]); return firstEntry && parse(firstEntry[0], firstEntry[1]);
} }
public getList<T>(name: string, parse: UnionParser<T>): T[] { public getList<T>(name: string, parse: UnionParser<T>): T[] {
return (this.collections[name] ?? []).map(([distinguisher, document]) => return (this.collections.get(name) ?? []).map(([distinguisher, document]) =>
parse(distinguisher, document) parse(distinguisher, document)
); );
} }
@ -86,7 +88,7 @@ export class Idv {
parseDocument: DocumentParser<T> parseDocument: DocumentParser<T>
): Record<string, T> { ): Record<string, T> {
return Object.fromEntries( return Object.fromEntries(
(this.collections[name] ?? []).map(([distinguisher, document]) => [ (this.collections.get(name) ?? []).map(([distinguisher, document]) => [
distinguisher, distinguisher,
parseDocument(document), parseDocument(document),
]) ])
@ -99,7 +101,7 @@ export class Idv {
): Record<string, T> { ): Record<string, T> {
const idvMap: Map<string, Idv> = new Map(); const idvMap: Map<string, Idv> = new Map();
(this.collections[name] ?? []).forEach(([distinguisher, document]) => { (this.collections.get(name) ?? []).forEach(([distinguisher, document]) => {
let idv = idvMap.get(distinguisher); let idv = idvMap.get(distinguisher);
if (idv == undefined) { if (idv == undefined) {
idvMap.set(distinguisher, (idv = new Idv())); idvMap.set(distinguisher, (idv = new Idv()));

1
tsconfig.json
View file

@ -3,6 +3,7 @@
"isolatedModules": true, "isolatedModules": true,
"lib": ["ES2019", "DOM"], "lib": ["ES2019", "DOM"],
"strict": true, "strict": true,
"target": "ES2020",
"noEmit": true "noEmit": true
} }
} }