packages/babel-parser/src/parser/base.js
// @flow
import type { Options } from "../options";
import type State from "../tokenizer/state";
import type { PluginsMap } from "./index";
import type ScopeHandler from "../util/scope";
import type ClassScopeHandler from "../util/class-scope";
import type ProductionParameterHandler from "../util/production-parameter";
export default class BaseParser {
// Properties set by constructor in index.js
options: Options;
inModule: boolean;
scope: ScopeHandler<*>;
classScope: ClassScopeHandler;
prodParam: ProductionParameterHandler;
plugins: PluginsMap;
filename: ?string;
sawUnambiguousESM: boolean = false;
ambiguousScriptDifferentAst: boolean = false;
// Initialized by Tokenizer
state: State;
// input and length are not in state as they are constant and we do
// not want to ever copy them, which happens if state gets cloned
input: string;
length: number;
hasPlugin(name: string): boolean {
return this.plugins.has(name);
}
getPluginOption(plugin: string, name: string) {
// $FlowIssue
if (this.hasPlugin(plugin)) return this.plugins.get(plugin)[name];
}
}