30 lines
631 B
TypeScript
30 lines
631 B
TypeScript
import { Span } from "../diagnostics.ts";
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export type Token = {
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type: string;
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span: Span;
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length: number;
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identValue?: string;
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intValue?: number;
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stringValue?: string;
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};
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export interface TokenIter {
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next(): Token | null;
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}
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export class SigFilter implements TokenIter {
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public constructor(private iter: TokenIter) {}
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next(): Token | null {
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const token = this.iter.next();
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if (token === null) {
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return token;
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}
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if (token?.type === "whitespace" || token?.type === "comment") {
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return this.next();
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}
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return token;
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}
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}
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