es2019 parser

Features

Heavily tested

Passes almost all tests from tc39/test262.

Error reporting

error: 'implements', 'interface', 'let', 'package', 'private', 'protected',  'public', 'static', or 'yield' cannot be used as an identifier in strict mode
--> invalid.js:3:10
|
3 | function yield() {
|          ^^^^^

Example

#[macro_use]
extern crate slog;
extern crate swc_common;
extern crate swc_ecma_parser;
use swc_common::{
errors::{ColorConfig, Handler},
sync::Lrc,
FileName, FilePathMapping, SourceMap,
};
use swc_ecma_parser::{Parser, Session, SourceFileInput};

fn main() {
swc_common::GLOBALS.set(&swc_common::Globals::new(), || {
let cm = Lrc::new(SourceMap::new(FilePathMapping::empty()));
let handler =
Handler::with_tty_emitter(ColorConfig::Auto, true, false, Some(cm.clone()));
let logger = slog::Logger::root(slog::Discard, o!());

let session = Session {
handler: &handler,
logger: &logger,
cfg: Default::default(),
};

// Real usage
// let fm = cm
//     .load_file(Path::new("test.js"))
//     .expect("failed to load test.js");

let fm = cm.new_source_file(
FileName::Custom("test.js".into()),
"function foo() {}".into(),
);

let mut parser = Parser::new(session, SourceFileInput::from(&*fm));

let _module = parser.parse_module().expect("failed to parser module");
});
}