mirror of
https://github.com/swc-project/swc.git
synced 2024-12-24 14:16:12 +03:00
415 lines
12 KiB
Rust
415 lines
12 KiB
Rust
#![feature(box_syntax)]
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#![feature(box_patterns)]
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#![feature(specialization)]
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#![feature(test)]
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extern crate swc_common;
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extern crate swc_ecma_ast;
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extern crate swc_ecma_parser;
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extern crate test;
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extern crate testing;
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use std::{
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env,
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fs::{read_dir, File},
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io::{self, Read},
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path::Path,
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};
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use swc_common::{Fold, FoldWith, Span};
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use swc_ecma_ast::*;
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use swc_ecma_parser::{PResult, Parser, Session, SourceFileInput, Syntax};
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use test::{test_main, Options, ShouldPanic::No, TestDesc, TestDescAndFn, DynTestFn, TestName};
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use testing::{NormalizedOutput, StdErr};
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const IGNORED_PASS_TESTS: &[&str] = &[
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// Temporalily ignored
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"431ecef8c85d4d24.js",
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"8386fbff927a9e0e.js",
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"5654d4106d7025c2.js",
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// Wrong tests (variable name or value is different)
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"0339fa95c78c11bd.js",
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"0426f15dac46e92d.js",
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"0b4d61559ccce0f9.js",
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"0f88c334715d2489.js",
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"1093d98f5fc0758d.js",
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"15d9592709b947a0.js",
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"2179895ec5cc6276.js",
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"247a3a57e8176ebd.js",
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"441a92357939904a.js",
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"47f974d6fc52e3e4.js",
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"4e1a0da46ca45afe.js",
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"5829d742ab805866.js",
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"589dc8ad3b9aa28f.js",
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"598a5cedba92154d.js",
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"72d79750e81ef03d.js",
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"7788d3c1e1247da9.js",
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"7b72d7b43bedc895.js",
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"7dab6e55461806c9.js",
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"82c827ccaecbe22b.js",
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"87a9b0d1d80812cc.js",
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"8c80f7ee04352eba.js",
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"96f5d93be9a54573.js",
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"988e362ed9ddcac5.js",
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"9bcae7c7f00b4e3c.js",
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"a8a03a88237c4e8f.js",
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"ad06370e34811a6a.js",
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"b0fdc038ee292aba.js",
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"b62c6dd890bef675.js",
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"cb211fadccb029c7.js",
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"ce968fcdf3a1987c.js",
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"db3c01738aaf0b92.js",
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"e1387fe892984e2b.js",
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"e71c1d5f0b6b833c.js",
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"e8ea384458526db0.js",
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// We don't implement Annex B fully.
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"1c1e2a43fe5515b6.js",
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"3dabeca76119d501.js",
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"52aeec7b8da212a2.js",
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"59ae0289778b80cd.js",
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"a4d62a651f69d815.js",
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"c06df922631aeabc.js",
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];
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fn add_test<F: FnOnce() + Send + 'static>(
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tests: &mut Vec<TestDescAndFn>,
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name: String,
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ignore: bool,
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f: F,
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) {
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tests.push(TestDescAndFn {
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desc: TestDesc {
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name: TestName::DynTestName(name),
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ignore,
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should_panic: No,
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allow_fail: false,
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},
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testfn: DynTestFn(box f),
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});
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}
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fn error_tests(tests: &mut Vec<TestDescAndFn>) -> Result<(), io::Error> {
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const IGNORED_ERROR_TESTS: &[&str] = &[
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// Old (wrong) tests
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"569a2c1bad3beeb2.js",
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// Wrong tests
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"0d5e450f1da8a92a.js",
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"346316bef54d805a.js",
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"976b6247ca78ab51.js",
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"ae0a7ac275bc9f5c.js",
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"748656edbfb2d0bb.js",
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"79f882da06f88c9f.js",
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"d28e80d99f819136.js",
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"92b6af54adef3624.js",
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"ef2d369cccc5386c.js",
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// Temporarily ignore tests for using octal escape before use strict
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"147fa078a7436e0e.js",
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"15a6123f6b825c38.js",
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"3bc2b27a7430f818.js",
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];
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let root = {
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let mut root = Path::new(env!("CARGO_MANIFEST_DIR")).to_path_buf();
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root.push("tests");
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root.push("test262-parser");
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root
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};
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eprintln!("Loading tests from {}", root.display());
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const TYPES: &[&str] = &[
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"fail", /* TODO
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* "early" */
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];
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for err_type in TYPES {
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let dir = root.join(err_type);
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let error_reference_dir = {
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let mut root = Path::new(env!("CARGO_MANIFEST_DIR")).to_path_buf();
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root.push("tests");
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root.push("test262-error-references");
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root.push(err_type);
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root
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};
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for entry in read_dir(&dir)? {
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let entry = entry?;
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let file_name = entry
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.path()
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.strip_prefix(&dir)
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.expect("failed to strip prefix")
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.to_str()
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.unwrap()
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.to_string();
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let input = {
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let mut buf = String::new();
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File::open(entry.path())?.read_to_string(&mut buf)?;
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buf
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};
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let ignore = IGNORED_ERROR_TESTS.contains(&&*file_name);
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let module = file_name.contains("module");
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let dir = dir.clone();
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let error_reference_dir = error_reference_dir.clone();
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let name = format!("test262::error_reporting::{}::{}", err_type, file_name);
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add_test(tests, name, ignore, move || {
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eprintln!(
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"\n\n========== Running error reporting test {}\nSource:\n{}\n",
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file_name, input
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);
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let path = dir.join(&file_name);
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// Parse source
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let err = if module {
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parse_module(&path).expect_err("should fail, but parsed as")
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} else {
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parse_script(&path).expect_err("should fail, but parsed as")
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};
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if err
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.compare_to_file(format!(
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"{}.stderr",
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error_reference_dir.join(file_name).display()
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))
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.is_err()
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{
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panic!()
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}
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});
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}
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}
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Ok(())
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}
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fn identity_tests(tests: &mut Vec<TestDescAndFn>) -> Result<(), io::Error> {
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let root = {
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let mut root = Path::new(env!("CARGO_MANIFEST_DIR")).to_path_buf();
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root.push("tests");
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root.push("test262-parser");
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root
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};
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eprintln!("Loading tests from {}", root.display());
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let pass_dir = root.join("pass");
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let files = read_dir(&pass_dir)?;
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for entry in files {
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let entry = entry?;
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let file_name = entry
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.path()
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.strip_prefix(&pass_dir)
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.expect("failed to strip prefix")
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.to_str()
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.unwrap()
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.to_string();
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let input = {
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let mut buf = String::new();
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File::open(entry.path())?.read_to_string(&mut buf)?;
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buf
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};
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let explicit = {
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let mut buf = String::new();
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File::open(root.join("pass-explicit").join(&file_name))?.read_to_string(&mut buf)?;
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buf
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};
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let ignore = IGNORED_PASS_TESTS.contains(&&*file_name);
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let module = file_name.contains("module");
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let root = root.clone();
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let name = format!("test262::identity::{}", file_name);
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add_test(tests, name, ignore, move || {
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eprintln!(
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"\n\n\n========== Running test {}\nSource:\n{}\nExplicit:\n{}",
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file_name, input, explicit
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);
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if module {
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let p = |explicit| {
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parse_module(
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&root
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.join(if explicit { "pass-explicit" } else { "pass" })
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.join(&file_name),
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)
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.map(normalize)
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.unwrap()
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};
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let src = p(false);
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let expected = p(true);
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assert_eq!(src, expected);
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let json =
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serde_json::to_string_pretty(&src).expect("failed to serialize module as json");
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let deser = serde_json::from_str::<Module>(&json)
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.unwrap_or_else(|err| {
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panic!(
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"failed to deserialize json back to module: {}\n{}",
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err, json
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)
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})
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.fold_with(&mut Normalizer);
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assert_eq!(src, deser, "JSON:\n{}", json);
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} else {
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let p = |explicit| {
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parse_script(
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&root
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.join(if explicit { "pass-explicit" } else { "pass" })
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.join(&file_name),
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)
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.map(normalize)
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.unwrap()
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};
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let src = p(false);
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let expected = p(true);
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assert_eq!(src, expected);
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}
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});
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}
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Ok(())
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}
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fn parse_script(file_name: &Path) -> Result<Script, NormalizedOutput> {
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with_parser(file_name, |p| p.parse_script())
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}
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fn parse_module<'a>(file_name: &Path) -> Result<Module, NormalizedOutput> {
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with_parser(file_name, |p| p.parse_module())
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}
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fn with_parser<F, Ret>(file_name: &Path, f: F) -> Result<Ret, StdErr>
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where
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F: for<'a> FnOnce(&mut Parser<'a, SourceFileInput>) -> PResult<'a, Ret>,
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{
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let output = ::testing::run_test(false, |cm, handler| {
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let fm = cm
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.load_file(file_name)
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.unwrap_or_else(|e| panic!("failed to load {}: {}", file_name.display(), e));
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let res = f(&mut Parser::new(
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Session { handler: &handler },
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Syntax::default(),
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(&*fm).into(),
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None,
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))
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.map_err(|mut e| {
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e.emit();
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()
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});
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res
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});
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output
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}
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#[test]
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fn identity() {
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let args: Vec<_> = env::args().collect();
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let mut tests = Vec::new();
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identity_tests(&mut tests).unwrap();
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test_main(&args, tests, Options::new());
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}
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#[test]
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fn error() {
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let args: Vec<_> = env::args().collect();
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let mut tests = Vec::new();
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error_tests(&mut tests).unwrap();
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test_main(&args, tests, Options::new());
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}
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pub fn normalize<T>(t: T) -> T
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where
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Normalizer: Fold<T>,
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{
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let mut n = Normalizer;
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n.fold(t)
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}
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pub struct Normalizer;
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impl Fold<Span> for Normalizer {
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fn fold(&mut self, _: Span) -> Span {
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Span::default()
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}
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}
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impl Fold<Str> for Normalizer {
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fn fold(&mut self, s: Str) -> Str {
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Str {
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span: Default::default(),
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has_escape: false,
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..s
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}
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}
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}
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impl Fold<Expr> for Normalizer {
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fn fold(&mut self, e: Expr) -> Expr {
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let e = e.fold_children(self);
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match e {
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Expr::Paren(ParenExpr { expr, .. }) => *expr,
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Expr::New(n @ NewExpr { args: None, .. }) => Expr::New(NewExpr {
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args: Some(vec![]),
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..n
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}),
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// Flatten comma expressions.
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Expr::Seq(SeqExpr { mut exprs, span }) => {
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let need_work = exprs.iter().any(|n| match **n {
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Expr::Seq(..) => true,
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_ => false,
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});
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if need_work {
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exprs = exprs.into_iter().fold(vec![], |mut v, e| {
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match *e {
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Expr::Seq(SeqExpr { exprs, .. }) => v.extend(exprs),
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_ => v.push(e),
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}
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v
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});
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}
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Expr::Seq(SeqExpr { exprs, span })
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}
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_ => e,
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}
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}
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}
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impl Fold<PropName> for Normalizer {
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fn fold(&mut self, n: PropName) -> PropName {
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let n = n.fold_children(self);
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match n {
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PropName::Ident(Ident { sym, .. }) => PropName::Str(Str {
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span: Default::default(),
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value: sym,
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has_escape: false,
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}),
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PropName::Num(num) => PropName::Str(Str {
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span: Default::default(),
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value: num.to_string().into(),
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has_escape: false,
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}),
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_ => n,
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}
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}
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}
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impl Fold<PatOrExpr> for Normalizer {
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fn fold(&mut self, node: PatOrExpr) -> PatOrExpr {
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let node = node.fold_children(self);
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match node {
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PatOrExpr::Pat(box Pat::Expr(e)) => PatOrExpr::Expr(e),
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PatOrExpr::Expr(box Expr::Ident(i)) => PatOrExpr::Pat(box Pat::Ident(i)),
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_ => node,
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}
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}
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}
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