feat: update swc_core to 4.0.0 (#201)

Update swc_core to 4.0.0

https://plugins.swc.rs/versions/range/19

Cargo.toml

@@ -16,15 +16,15 @@ path-absolutize = { version = "3", features = ["use_unix_paths_on_wasm"] }
 
 serde = "1"
 serde_json = "1"
-swc_core = { version = "1", features = [
+swc_core = { version = "4", features = [
   "ecma_plugin_transform",
   "ecma_parser",
 ] }
 
 ts-rs = "10"
 
 [dev-dependencies]
-testing = "1"
+testing = "3"
 # .cargo/config defines few alias to build plugin.
 # cargo build-wasip1 generates wasm-wasi32 binary
 # cargo build-wasm32 generates wasm32-unknown-unknown binary.

src/lib.rs

@@ -3,10 +3,7 @@ mod injector;
 
 pub use config::Config;
 pub use injector::Injector;
-use swc_core::ecma::{
-    ast::Program,
-    visit::{as_folder, FoldWith},
-};
+use swc_core::ecma::{ast::Program, visit::visit_mut_pass};
 use swc_core::plugin::metadata::TransformPluginMetadataContextKind;
 use swc_core::plugin::{plugin_transform, proxies::TransformPluginProgramMetadata};
 
@@ -27,7 +24,7 @@ pub fn process_transform(program: Program, metadata: TransformPluginProgramMetad
         .get_context(&TransformPluginMetadataContextKind::Cwd)
         .expect("failed to get cwd");
 
-    program.fold_with(&mut as_folder(Injector::new(
+    program.apply(visit_mut_pass(Injector::new(
         cwd.as_str(),
         filepath.as_str(),
         config,

tests/fixture.rs

@@ -3,7 +3,7 @@ use std::{env, fs, path::PathBuf};
 use swc_core::ecma::{
     parser::{EsSyntax, Syntax},
     transforms::testing::test_fixture,
-    visit::as_folder,
+    visit::visit_mut_pass,
 };
 use swc_plugin_pre_paths::{Config, Injector};
 
@@ -28,7 +28,7 @@ fn fixture(input: PathBuf) {
     test_fixture(
         syntax(),
         &|_| {
-            as_folder(Injector::new(
+            visit_mut_pass(Injector::new(
                 cwd.to_str().unwrap(),
                 input.to_str().unwrap(),
                 config.clone(),