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bfea322351
**Description:** This PR addresses the issue described in https://github.com/swc-project/swc/issues/8713 **BREAKING CHANGE:** Will break unit tests that use `fold_module`/`visit_module`/`visit_mut_module` if the visitor is intended to work for both modules and scripts instead of using `fold_program`/`visit_program`/`visit_mut_program`. When creating visitors, you should use `fold_program`/`visit_program`/`visit_mut_program` if you simply want to visit the top-level node. When creating tests, the input source code will be parsed using `parse_program` by default. If you need to parse it as a `Module`, you can use `module: Some(true)` in `FixtureTestConfig` (or with `test!(module, ..)`), which will parse it as a `Program::Module`, or `Some(false)` for `Program::Script`. `None` will use `parse_program` (`parse_program` will auto-detect the underlying type).
137 lines
2.8 KiB
Rust
137 lines
2.8 KiB
Rust
#![deny(warnings)]
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use std::path::PathBuf;
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use swc_common::{chain, Mark};
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use swc_ecma_parser::Syntax;
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use swc_ecma_transforms_base::resolver;
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use swc_ecma_transforms_module::system_js::{system_js, Config};
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use swc_ecma_transforms_testing::{test, test_fixture, FixtureTestConfig, Tester};
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use swc_ecma_visit::Fold;
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fn syntax() -> Syntax {
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Syntax::Es(Default::default())
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}
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fn tr(_tester: &mut Tester<'_>, config: Config) -> impl Fold {
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let unresolved_mark = Mark::new();
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let top_level_mark = Mark::new();
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chain!(
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resolver(unresolved_mark, top_level_mark, false),
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system_js(Default::default(), unresolved_mark, config)
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)
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}
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test!(
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module,
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syntax(),
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|tester| tr(tester, Default::default()),
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allow_continuous_assignment,
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r#"var e = {}; e.a = e.b = e.c = e.d = e.e = e.f = e.g = e.h = e.i = e.j = e.k = e.l = e.m = e.n = e.o = e.p = e.q = e.r = e.s = e.t = e.u = e.v = e.w = e.x = e.y = e.z = e.A = e.B = e.C = e.D = e.E = e.F = e.G = e.H = e.I = e.J = e.K = e.L = e.M = e.N = e.O = e.P = e.Q = e.R = e.S = void 0;"#
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);
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test!(
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module,
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syntax(),
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|tester| tr(
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tester,
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Config {
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allow_top_level_this: true,
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..Default::default()
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}
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),
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allow_top_level_this_true,
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r#"export var v = this;"#
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);
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test!(
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module,
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syntax(),
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|tester| tr(
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tester,
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Config {
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allow_top_level_this: false,
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..Default::default()
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}
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),
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iife,
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r#"
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(function(a) {
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this.foo = a;
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})(this);
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"#
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);
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test!(
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module,
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syntax(),
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|tester| tr(
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tester,
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Config {
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allow_top_level_this: false,
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..Default::default()
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}
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),
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top_level_this_false_class,
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r#"
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const a = this;
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class A {
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constructor() {
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this.a = 1;
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}
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test() {
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this.a = 2;
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}
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}"#
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);
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test!(
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module,
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syntax(),
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|tester| tr(
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tester,
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Config {
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allow_top_level_this: false,
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..Default::default()
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}
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),
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allow_top_level_this_false,
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r#"export var v = this;
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function a() {
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function d () {}
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var b = this;
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} "#
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);
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test!(
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module,
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syntax(),
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|tester| tr(tester, Default::default()),
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imports,
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r#"
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import.meta.url;
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import.meta.fn();
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await import('./test2');
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"#
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);
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// TODO: test get-module-name-option, tla
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#[testing::fixture("tests/fixture/systemjs/**/input.mjs")]
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fn fixture(input: PathBuf) {
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let dir = input.parent().unwrap().to_path_buf();
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let output = dir.join("output.mjs");
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test_fixture(
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syntax(),
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&|tester| tr(tester, Default::default()),
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&input,
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&output,
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FixtureTestConfig {
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module: Some(true),
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..Default::default()
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},
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);
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}
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