swc_ecma_transforms:

- remove this parameter from typescript::strip pass (fixes #236)

ecmascript/transforms/src/typescript/mod.rs

@@ -162,6 +162,23 @@ impl Fold<Constructor> for Strip {
     }
 }
 
+impl Fold<Vec<Pat>> for Strip {
+    fn fold(&mut self, pats: Vec<Pat>) -> Vec<Pat> {
+        let mut pats = pats.fold_children(self);
+
+        // Remove this from parameter list
+        pats.retain(|pat| match *pat {
+            Pat::Ident(Ident {
+                sym: js_word!("this"),
+                ..
+            }) => false,
+            _ => true,
+        });
+
+        pats
+    }
+}
+
 impl Fold<Vec<ModuleItem>> for Strip {
     fn fold(&mut self, items: Vec<ModuleItem>) -> Vec<ModuleItem> {
         // First pass

ecmascript/transforms/src/typescript/tests.rs

@@ -82,3 +82,9 @@ const a: Types = Types.foo;",
     "import {Types} from 'other';
 const a = Types.foo;"
 );
+
+to!(
+    issue_236,
+    "function foo(this: any, $scope: angular.IScope){}",
+    "function foo($scope){}"
+);