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86 lines
3.1 KiB
86 lines
3.1 KiB
4 years ago
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import { Next, ToString } from "./types";
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declare const FUNCTION_PREFIXES: {
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Function: string;
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GeneratorFunction: string;
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AsyncFunction: string;
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AsyncGeneratorFunction: string;
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};
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/**
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* Track function parser usage.
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*/
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export declare const USED_METHOD_KEY: WeakSet<Function>;
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/**
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* Stringify a function.
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*/
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export declare const functionToString: ToString;
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/**
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* Rewrite a stringified function to remove initial indentation.
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*/
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export declare function dedentFunction(fnString: string): string;
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/**
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* Function parser and stringify.
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*/
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export declare class FunctionParser {
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fn: Function;
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indent: string;
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next: Next;
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key?: string | undefined;
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fnString: string;
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fnType: keyof typeof FUNCTION_PREFIXES;
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keyQuote: string | undefined;
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keyPrefix: string;
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isMethodCandidate: boolean;
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pos: number;
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hadKeyword: boolean;
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constructor(fn: Function, indent: string, next: Next, key?: string | undefined);
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stringify(): string;
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getPrefix(): string;
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tryParse(): string | undefined;
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/**
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* Attempt to parse the function from the current position by first stripping
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* the function's name from the front. This is not a fool-proof method on all
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* JavaScript engines, but yields good results on Node.js 4 (and slightly
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* less good results on Node.js 6 and 8).
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*/
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tryStrippingName(): string | undefined;
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/**
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* Attempt to advance the parser past the keywords expected to be at the
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* start of this function's definition. This method sets `this.hadKeyword`
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* based on whether or not a `function` keyword is consumed.
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*
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* @return {boolean}
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*/
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tryParsePrefixTokens(): boolean;
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/**
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* Advance the parser past one element of JavaScript syntax. This could be a
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* matched pair of delimiters, like braces or parentheses, or an atomic unit
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* like a keyword, variable, or operator. Return a normalized string
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* representation of the element parsed--for example, returns '{}' for a
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* matched pair of braces. Comments and whitespace are skipped.
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*
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* (This isn't a full parser, so the token scanning logic used here is as
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* simple as it can be. As a consequence, some things that are one token in
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* JavaScript, like decimal number literals or most multicharacter operators
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* like '&&', are split into more than one token here. However, awareness of
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* some multicharacter sequences like '=>' is necessary, so we match the few
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* of them that we care about.)
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*/
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consumeSyntax(wordLikeToken?: string): string | undefined;
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consumeSyntaxUntil(startToken: string, endToken: string): string | undefined;
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consumeMatch(re: RegExp): RegExpExecArray | null;
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/**
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* Advance the parser past an arbitrary regular expression. Return `token`,
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* or the match object of the regexp.
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*/
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consumeRegExp(re: RegExp, token: string): string | undefined;
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/**
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* Advance the parser past a template string.
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*/
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consumeTemplate(): "`" | undefined;
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/**
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* Advance the parser past any whitespace or comments.
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*/
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consumeWhitespace(): void;
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}
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export {};
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