fix(coverage): normalize exclude path

Cargo.toml

@@ -12,7 +12,7 @@ resolver = "2"
 #lto = true
 
  [workspace.dependencies]
- istanbul-oxide = { path = "./packages/istanbul-oxide", version = "0.0.28" }
+ istanbul-oxide = { path = "./packages/istanbul-oxide", version = "0.0.29" }
  swc-coverage-instrument = { path = "./packages/swc-coverage-instrument" }
 
  getrandom = { version = "0.2.15" }
@@ -24,5 +24,6 @@ resolver = "2"
  swc_core = { version = "31.1.0" }
  tracing = { version = "0.1.37" }
  tracing-subscriber = { version = "0.3.17" }
+ typed-path = { version = "0.11.0" }
  wasm-bindgen = { version = "0.2.92" }
  wax = { version = "0.6.0" }

package.json

@@ -1,6 +1,6 @@
 {
  "name": "swc-plugin-coverage-instrument",
- "version": "0.0.28",
+ "version": "0.0.29",
  "description": "SWC coverage instrumentation plugin",
  "main": "./target/wasm32-wasip1/release/swc_plugin_coverage.wasm",
  "napi": {

packages/istanbul-oxide/Cargo.toml

@@ -5,7 +5,7 @@ edition = "2021"
 license = "MIT"
 name = "istanbul-oxide"
 repository = "https://github.com/kwonoj/swc-coverage-instrument"
-version = "0.0.28"
+version = "0.0.29"
 
 [dependencies]
 indexmap = { workspace = true, features = ["serde"] }

packages/swc-coverage-instrument/Cargo.toml

@@ -5,7 +5,7 @@ edition = "2021"
 license = "MIT"
 name = "swc-coverage-instrument"
 repository = "https://github.com/kwonoj/swc-coverage-instrument"
-version = "0.0.28"
+version = "0.0.29"
 
 [dependencies]
 istanbul-oxide = { workspace = true }

packages/swc-plugin-coverage/Cargo.toml

@@ -5,7 +5,7 @@ edition = "2021"
 license = "MIT"
 name = "swc-plugin-coverage"
 repository = "https://github.com/kwonoj/swc-coverage-instrument"
-version = "0.0.28"
+version = "0.0.29"
 
 [lib]
 crate-type = ["cdylib"]
@@ -16,4 +16,5 @@ swc-coverage-instrument = { workspace = true }
 swc_core = { workspace = true, features = ["ecma_plugin_transform"] }
 tracing = { workspace = true }
 tracing-subscriber = { workspace = true, features = ["fmt"] }
+typed-path = { workspace = true }
 wax = { workspace = true }

packages/swc-plugin-coverage/src/lib.rs

@@ -10,8 +10,23 @@ use swc_coverage_instrument::{
 };
 
 use tracing_subscriber::fmt::format::FmtSpan;
+use typed_path::Utf8TypedPath;
 use wax::Pattern;
 
+/// Normalize a file path to use forward slashes for consistent glob matching
+fn normalize_path_for_glob_matching(path: &str) -> String {
+ let typed_path = Utf8TypedPath::derive(path);
+ if typed_path.is_windows() {
+ typed_path.with_unix_encoding().to_string()
+ } else if path.contains('\\') {
+ // Fallback: if the path contains backslashes but wasn't detected as Windows,
+ // still normalize it by replacing backslashes with forward slashes
+ path.replace('\\', "/")
+ } else {
+ path.to_string()
+ }
+}
+
 fn initialize_instrumentation_log(log_options: &InstrumentLogOptions) {
  let log_level = match log_options.level.as_deref() {
  Some("error") => Some(tracing::Level::ERROR),
@@ -64,7 +79,8 @@ pub fn process(program: Program, metadata: TransformPluginProgramMetadata) -> Pr
  if let Some(exclude) = &instrument_options.unstable_exclude {
  match wax::any(exclude.iter().map(|s| s.as_ref()).collect::<Vec<&str>>()) {
  Ok(p) => {
- if p.is_match(filename) {
+ let normalized_filename = normalize_path_for_glob_matching(filename);
+ if p.is_match(normalized_filename.as_str()) {
  return program;
  }
  }
@@ -86,3 +102,41 @@ pub fn process(program: Program, metadata: TransformPluginProgramMetadata) -> Pr
 
  program.apply(&mut visit_mut_pass(visitor))
 }
+
+#[cfg(test)]
+mod tests {
+ use super::*;
+
+ #[test]
+ fn test_normalize_path_for_glob_matching() {
+ // Test Windows paths are normalized to Unix-style
+ let result = normalize_path_for_glob_matching(r"C:\Users\project\test\index.test.ts");
+ println!("Windows path result: {}", result);
+ // The typed-path crate converts Windows paths to Unix format, but may strip the drive letter
+ // The important thing is that backslashes are converted to forward slashes
+ assert!(result.contains("/Users/project/test/index.test.ts"));
+
+ // Test mixed separators are normalized
+ let result = normalize_path_for_glob_matching(r"C:\Users/project\test/file.js");
+ println!("Mixed separators result: {}", result);
+ assert!(result.contains("/Users/project/test/file.js"));
+
+ // Test Unix paths remain unchanged
+ assert_eq!(
+ normalize_path_for_glob_matching("/home/user/project/src/utils/helper.js"),
+ "/home/user/project/src/utils/helper.js"
+ );
+
+ // Test relative Unix paths remain unchanged
+ assert_eq!(
+ normalize_path_for_glob_matching("src/components/Button.tsx"),
+ "src/components/Button.tsx"
+ );
+
+ // Test that backslashes are converted to forward slashes
+ let windows_path = r"project\src\test\file.ts";
+ let result = normalize_path_for_glob_matching(windows_path);
+ println!("Relative Windows path result: {}", result);
+ assert!(result.contains("project/src/test/file.ts"));
+ }
+}

spec/plugin.spec.ts

@@ -29,6 +29,26 @@ ${code}
  );
  });
 
+ it("should normalize paths", () => {
+ const code = `console.log('hello world');`;
+
+ const output = instrumentSync(
+ code,
+ "C:\\Users\\project\\test\\index.test.ts",
+ undefined,
+ {
+ unstableExclude: ["**/test/**"],
+ },
+ );
+
+ assert.equal(
+ output.code,
+ `"use strict";
+${code}
+`,
+ );
+ });
+
  it("should preserve emotion styled component labels with template literals", () => {
  // This reproduces the issue from GitHub #247
  // Input: code AFTER emotion processing (as shown in the GitHub issue)

spec/swc-coverage-custom-transform/Cargo.toml

@@ -21,7 +21,7 @@ napi-derive = { version = "2.12.3", default-features = false, features = [
 ] }
 serde = { version = "1.0.203", features = ["derive"] }
 serde_json = { version = "1.0.120", features = ["unbounded_depth"] }
-swc-coverage-instrument = { version = "0.0.28", path = "../../packages/swc-coverage-instrument" }
+swc-coverage-instrument = { version = "0.0.29", path = "../../packages/swc-coverage-instrument" }
 swc_core = { version = "31.1.0", features = [
  "common_concurrent",
  "ecma_transforms",

spec/swc-coverage-instrument-wasm/src/lib.rs

@@ -14,7 +14,6 @@ pub struct CoverageMagicValue {
  value: String,
 }
 
-
 #[wasm_bindgen(js_name = "getCoverageMagicConstants")]
 pub fn get_coverage_magic_constants() -> JsValue {
  serde_wasm_bindgen::to_value(&CoverageMagicValue {