Support @__PURE__ when nested after new in constructor invocations (#5998)

TrickyPi · web-flow · commit a9165633dfb4 · 2025-07-04T05:50:49.000Z
diff --git a/rust/parse_ast/src/ast_nodes/new_expression.rs b/rust/parse_ast/src/ast_nodes/new_expression.rs
@@ -1,3 +1,4 @@
+use swc_common::Spanned;
 use swc_ecma_ast::NewExpr;
 
 use crate::convert_ast::annotations::AnnotationKind;
@@ -13,8 +14,9 @@ impl AstConverter<'_> {
       &TYPE_NEW_EXPRESSION,
       &new_expression.span,
       NEW_EXPRESSION_RESERVED_BYTES,
-      false,
+      true,
     );
+    self.move_to_specific_index(new_expression.callee.span_lo().0 - 2);
     // annotations
     let annotations = self
       .index_converter
diff --git a/rust/parse_ast/src/convert_ast/converter.rs b/rust/parse_ast/src/convert_ast/converter.rs
@@ -795,6 +795,10 @@ impl<'a> AstConverter<'a> {
       }
     }
   }
+
+  pub(crate) fn move_to_specific_index(&mut self, index: u32) {
+    self.index_converter.convert(index, false);
+  }
 }
 
 pub(crate) fn convert_annotation(buffer: &mut Vec<u8>, annotation: &ConvertedAnnotation) {
diff --git a/test/form/samples/pure-comment-scenarios-simple/main.js b/test/form/samples/pure-comment-scenarios-simple/main.js
@@ -17,6 +17,7 @@
 (/*@__PURE__*/ p.x(1).y(2).z(3));
 [ /*@__PURE__*/ q() ];
 /*@__PURE__*/ new r();
+new /*@__PURE__*/ r();
 /*@__PURE__*/ (new s());
 (/*@__PURE__*/ new t());
 /*@__PURE__*/ new u(1)(2)(3);

Original file line number	Diff line number	Diff line change
`@@ -795,6 +795,10 @@ impl<'a> AstConverter<'a> {`
`795`	`795`	`}`
`796`	`796`	`}`
`797`	`797`	`}`
	`798`	`+`
	`799`	`+ pub(crate) fn move_to_specific_index(&mut self, index: u32) {`
	`800`	`+ self.index_converter.convert(index, false);`
	`801`	`+ }`
`798`	`802`	`}`
`799`	`803`
`800`	`804`	`pub(crate) fn convert_annotation(buffer: &mut Vec<u8>, annotation: &ConvertedAnnotation) {`