fix(es/transforms/base): Fix resolver (#1672)

swc_ecma_transforms_base:
 - `resolver`: Handle variables in for in/of loop body correctly.

ecmascript/parser/Cargo.toml

@@ -7,7 +7,7 @@ include = ["Cargo.toml", "src/**/*.rs", "examples/**/*.rs"]
 license = "Apache-2.0/MIT"
 name = "swc_ecma_parser"
 repository = "https://github.com/swc-project/swc.git"
-version = "0.56.1"
+version = "0.56.2"
 
 [features]
 default = []

ecmascript/transforms/base/Cargo.toml

@@ -6,7 +6,7 @@ edition = "2018"
 license = "Apache-2.0/MIT"
 name = "swc_ecma_transforms_base"
 repository = "https://github.com/swc-project/swc.git"
-version = "0.14.1"
+version = "0.14.2"
 
 [dependencies]
 fxhash = "0.2.1"

ecmascript/transforms/base/src/resolver/mod.rs

@@ -150,6 +150,17 @@ impl<'a> Resolver<'a> {
         }
     }
 
+    fn visit_mut_stmt_within_child_scope(&mut self, s: &mut Stmt) {
+        let child_mark = Mark::fresh(self.mark);
+        let mut child = Resolver::new(
+            child_mark,
+            Scope::new(ScopeKind::Block, Some(&self.current)),
+            self.handle_types,
+        );
+
+        child.visit_mut_stmt_within_same_scope(s)
+    }
+
     fn visit_mut_stmt_within_same_scope(&mut self, s: &mut Stmt) {
         match s {
             Stmt::Block(s) => {
@@ -638,7 +649,7 @@ impl<'a> VisitMut for Resolver<'a> {
         n.left.visit_mut_with(&mut child);
         n.right.visit_mut_with(&mut child);
 
-        child.visit_mut_stmt_within_same_scope(&mut *n.body);
+        child.visit_mut_stmt_within_child_scope(&mut *n.body);
     }
 
     fn visit_mut_for_of_stmt(&mut self, n: &mut ForOfStmt) {
@@ -652,7 +663,7 @@ impl<'a> VisitMut for Resolver<'a> {
         n.left.visit_mut_with(&mut child);
         n.right.visit_mut_with(&mut child);
 
-        child.visit_mut_stmt_within_same_scope(&mut *n.body);
+        child.visit_mut_stmt_within_child_scope(&mut *n.body);
     }
 
     fn visit_mut_for_stmt(&mut self, n: &mut ForStmt) {

ecmascript/transforms/base/src/resolver/tests.rs

@@ -2915,3 +2915,17 @@ fn issue_1653_2() {
             ",
     );
 }
+
+to_ts!(
+    ts_for_of_statements_for_of_23_01,
+    "
+    for (const v of new FooIterator) {
+        const v = 0; // new scope
+    }
+    ",
+    "
+    for (const v__1 of new FooIterator){
+        const v__3 = 0;
+    }
+    "
+);