Nicolò Ribaudo 87feda7c2a
@babel/parser error recovery (#10363)
* Add error recovery support to @babel/parser

* Update @babel/parser tests to always recover from errors

* Update this.raise usage in @babel/parser:

- expression.js
- lval.js
- statement.js
- estree.js
- flow.js
- jsx/index.js
- tokenizer/index.js

* Update @babel/parser fixtures with recovered errors

* Fix tests out of @babel/parser

* Do not use try/catch for control flow

* Update invalid fixtures

* Do not report invalid lhs in toAssignable

* Do not validate function id multiple times

* Dedupe reserved await errors

* Remove duplicate errors about strict reserved bindings

* Remove duplicated error about yield/await inside params

* Don't error twice for methods in object patterns

* Don't report invalid super() twice

* Remove dup error about reserved param for expr arrows

* Remove double escapes in migrated tests

* Dedupe errors about invalid escapes in identifiers

* Remove duplicated error about decorated constructor

* Remove duplicated error about spread in flow class

* Don't throw for invalid super usage

* Don't fail for object decorators with stage 2

* Fix flow inexact type errors

* Fix flow

* Fix errors about escapes in keywords (ref: #10455)

* Update after rebase

* Fix todo

* Remove duplicated error when using += for defaults

* Remove unnecessary throw

* Nit: use ??
2019-11-05 10:15:00 +01:00

57 lines
1.7 KiB
JavaScript

// @flow
import type { Options } from "../options";
import type { File, JSXOpeningElement } from "../types";
import type { PluginList } from "../plugin-utils";
import { getOptions } from "../options";
import StatementParser from "./statement";
import { SCOPE_PROGRAM } from "../util/scopeflags";
import ScopeHandler from "../util/scope";
export type PluginsMap = Map<string, { [string]: any }>;
export default class Parser extends StatementParser {
// Forward-declaration so typescript plugin can override jsx plugin
+jsxParseOpeningElementAfterName: (
node: JSXOpeningElement,
) => JSXOpeningElement;
constructor(options: ?Options, input: string) {
options = getOptions(options);
super(options, input);
const ScopeHandler = this.getScopeHandler();
this.options = options;
this.inModule = this.options.sourceType === "module";
this.scope = new ScopeHandler(this.raise.bind(this), this.inModule);
this.plugins = pluginsMap(this.options.plugins);
this.filename = options.sourceFilename;
}
// This can be overwritten, for example, by the TypeScript plugin.
getScopeHandler(): Class<ScopeHandler<*>> {
return ScopeHandler;
}
parse(): File {
this.scope.enter(SCOPE_PROGRAM);
const file = this.startNode();
const program = this.startNode();
this.nextToken();
file.errors = null;
this.parseTopLevel(file, program);
file.errors = this.state.errors;
return file;
}
}
function pluginsMap(plugins: PluginList): PluginsMap {
const pluginMap: PluginsMap = new Map();
for (const plugin of plugins) {
const [name, options] = Array.isArray(plugin) ? plugin : [plugin, {}];
if (!pluginMap.has(name)) pluginMap.set(name, options || {});
}
return pluginMap;
}