2 files changed, 5 insertions, 0 deletions
diff --git a/src/bundler.zig b/src/bundler.zig
index b089c0f09..cf83cf25e 100644
--- a/src/bundler.zig
+++ b/src/bundler.zig
@@ -702,6 +702,10 @@ pub const Transformer = struct {
                 var parser = try js_parser.Parser.init(opts, log, source, define, allocator);
                 var res = try parser.parse();
                 ast = res.ast;
+
+                if (FeatureFlags.print_ast) {
+                    try ast.toJSON(allocator, std.io.getStdErr().writer());
+                }
             },
             else => {
                 Global.panic("Unsupported loader: {s} for path: {s}", .{ loader, source.path.text });
diff --git a/src/global.zig b/src/global.zig
index ee073dc50..2d38cbf79 100644
--- a/src/global.zig
+++ b/src/global.zig
@@ -23,6 +23,7 @@ pub const FeatureFlags = struct {
     pub const strong_etags_for_built_files = true;
     pub const keep_alive = true;
     pub const use_std_path_relative = false;
+    pub const print_ast = false;
 };
 
 pub const enableTracing = true;