38529699d6
* test: add test fixtures * refactor: track AWAIT and YIELD in separate handler * fix flow errors * add flow type annotation to production-parameter * address review comments * refactor: track [Return] parameter
71 lines
2.2 KiB
JavaScript
71 lines
2.2 KiB
JavaScript
// @flow
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import type { Options } from "../options";
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import type { File /*::, JSXOpeningElement */ } from "../types";
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import type { PluginList } from "../plugin-utils";
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import { getOptions } from "../options";
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import StatementParser from "./statement";
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import { SCOPE_PROGRAM } from "../util/scopeflags";
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import ScopeHandler from "../util/scope";
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import ClassScopeHandler from "../util/class-scope";
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import ProductionParameterHandler, {
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PARAM_AWAIT,
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PARAM,
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} from "../util/production-parameter";
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export type PluginsMap = Map<string, { [string]: any }>;
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export default class Parser extends StatementParser {
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// Forward-declaration so typescript plugin can override jsx plugin
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/*::
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+jsxParseOpeningElementAfterName: (
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node: JSXOpeningElement,
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) => JSXOpeningElement;
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*/
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constructor(options: ?Options, input: string) {
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options = getOptions(options);
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super(options, input);
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const ScopeHandler = this.getScopeHandler();
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this.options = options;
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this.inModule = this.options.sourceType === "module";
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this.scope = new ScopeHandler(this.raise.bind(this), this.inModule);
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this.prodParam = new ProductionParameterHandler();
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this.classScope = new ClassScopeHandler(this.raise.bind(this));
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this.plugins = pluginsMap(this.options.plugins);
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this.filename = options.sourceFilename;
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}
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// This can be overwritten, for example, by the TypeScript plugin.
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getScopeHandler(): Class<ScopeHandler<*>> {
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return ScopeHandler;
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}
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parse(): File {
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let paramFlags = PARAM;
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if (this.hasPlugin("topLevelAwait") && this.inModule) {
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paramFlags |= PARAM_AWAIT;
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}
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this.scope.enter(SCOPE_PROGRAM);
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this.prodParam.enter(paramFlags);
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const file = this.startNode();
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const program = this.startNode();
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this.nextToken();
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file.errors = null;
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this.parseTopLevel(file, program);
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file.errors = this.state.errors;
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return file;
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}
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}
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function pluginsMap(plugins: PluginList): PluginsMap {
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const pluginMap: PluginsMap = new Map();
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for (const plugin of plugins) {
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const [name, options] = Array.isArray(plugin) ? plugin : [plugin, {}];
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if (!pluginMap.has(name)) pluginMap.set(name, options || {});
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}
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return pluginMap;
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}
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