feat(codegen): add sourcemap feature flag

Cargo.toml

@@ -109,7 +109,7 @@ oxc_ast = { version = "0.105.0", path = "crates/oxc_ast" } # AST definitions
 oxc_ast_macros = { version = "0.105.0", path = "crates/oxc_ast_macros" } # AST proc macros
 oxc_ast_visit = { version = "0.105.0", path = "crates/oxc_ast_visit" } # AST visitor pattern
 oxc_cfg = { version = "0.105.0", path = "crates/oxc_cfg" } # Control flow graph
-oxc_codegen = { version = "0.105.0", path = "crates/oxc_codegen" } # Code generation
+oxc_codegen = { version = "0.105.0", path = "crates/oxc_codegen", default-features = false } # Code generation
 oxc_compat = { version = "0.105.0", path = "crates/oxc_compat" } # Browser compatibility
 oxc_data_structures = { version = "0.105.0", path = "crates/oxc_data_structures" } # Shared data structures
 oxc_diagnostics = { version = "0.105.0", path = "crates/oxc_diagnostics" } # Error reporting

crates/oxc/Cargo.toml

@@ -60,7 +60,7 @@ full = [
 semantic = ["oxc_semantic"]
 transformer = ["oxc_transformer", "oxc_transformer_plugins"]
 minifier = ["oxc_mangler", "oxc_minifier"]
-codegen = ["oxc_codegen"]
+codegen = ["oxc_codegen", "oxc_codegen/sourcemap"]
 mangler = ["oxc_mangler"]
 cfg = ["oxc_cfg", "oxc_semantic/cfg"]
 isolated_declarations = ["oxc_isolated_declarations"]

crates/oxc_codegen/Cargo.toml

@@ -25,7 +25,7 @@ oxc_ast = { workspace = true }
 oxc_data_structures = { workspace = true, features = ["code_buffer", "slice_iter", "stack"] }
 oxc_index = { workspace = true }
 oxc_semantic = { workspace = true }
-oxc_sourcemap = { workspace = true }
+oxc_sourcemap = { workspace = true, optional = true }
 oxc_span = { workspace = true }
 oxc_syntax = { workspace = true }
 
@@ -39,3 +39,7 @@ rustc-hash = { workspace = true }
 insta = { workspace = true }
 oxc_parser = { workspace = true }
 pico-args = { workspace = true }
+
+[features]
+default = ["sourcemap"]
+sourcemap = ["dep:oxc_sourcemap"]

crates/oxc_codegen/src/lib.rs

@@ -28,12 +28,14 @@ mod context;
 mod r#gen;
 mod operator;
 mod options;
+#[cfg(feature = "sourcemap")]
 mod sourcemap_builder;
 mod str;
 
 use binary_expr_visitor::BinaryExpressionVisitor;
 use comment::CommentsMap;
 use operator::Operator;
+#[cfg(feature = "sourcemap")]
 use sourcemap_builder::SourcemapBuilder;
 use str::{Quote, cold_branch, is_script_close_tag};
 
@@ -53,6 +55,7 @@ pub struct CodegenReturn {
     /// The source map from the input source code to the generated source code.
     ///
     /// You must set [`CodegenOptions::source_map_path`] for this to be [`Some`].
+    #[cfg(feature = "sourcemap")]
     pub map: Option<oxc_sourcemap::SourceMap>,
 
     /// All the legal comments returned from [LegalComment::Linked] or [LegalComment::External].
@@ -121,6 +124,7 @@ pub struct Codegen<'a> {
     // Builders
     comments: CommentsMap,
 
+    #[cfg(feature = "sourcemap")]
     sourcemap_builder: Option<SourcemapBuilder<'a>>,
 }
 
@@ -172,6 +176,7 @@ impl<'a> Codegen<'a> {
             indent: 0,
             quote: Quote::Double,
             comments: CommentsMap::default(),
+            #[cfg(feature = "sourcemap")]
             sourcemap_builder: None,
         }
     }
@@ -224,14 +229,21 @@ impl<'a> Codegen<'a> {
         self.indent = self.options.initial_indent;
         self.code.reserve(program.source_text.len());
         self.build_comments(&program.comments);
+        #[cfg(feature = "sourcemap")]
         if let Some(path) = &self.options.source_map_path {
             self.sourcemap_builder = Some(SourcemapBuilder::new(path, program.source_text));
         }
         program.print(&mut self, Context::default());
         let legal_comments = self.handle_eof_linked_or_external_comments(program);
         let code = self.code.into_string();
+        #[cfg(feature = "sourcemap")]
         let map = self.sourcemap_builder.map(SourcemapBuilder::into_sourcemap);
-        CodegenReturn { code, map, legal_comments }
+        CodegenReturn {
+            code,
+            #[cfg(feature = "sourcemap")]
+            map,
+            legal_comments,
+        }
     }
 
     /// Turn what's been built so far into a string. Like [`build`],
@@ -877,6 +889,7 @@ impl<'a> Codegen<'a> {
         }
     }
 
+    #[cfg(feature = "sourcemap")]
     fn add_source_mapping(&mut self, span: Span) {
         if let Some(sourcemap_builder) = self.sourcemap_builder.as_mut()
             && !span.is_empty()
@@ -885,6 +898,11 @@ impl<'a> Codegen<'a> {
         }
     }
 
+    #[cfg(not(feature = "sourcemap"))]
+    #[inline]
+    fn add_source_mapping(&mut self, _span: Span) {}
+
+    #[cfg(feature = "sourcemap")]
     fn add_source_mapping_end(&mut self, span: Span) {
         if let Some(sourcemap_builder) = self.sourcemap_builder.as_mut()
             && !span.is_empty()
@@ -903,11 +921,20 @@ impl<'a> Codegen<'a> {
         }
     }
 
+    #[cfg(not(feature = "sourcemap"))]
+    #[inline]
+    fn add_source_mapping_end(&mut self, _span: Span) {}
+
+    #[cfg(feature = "sourcemap")]
     fn add_source_mapping_for_name(&mut self, span: Span, name: &str) {
         if let Some(sourcemap_builder) = self.sourcemap_builder.as_mut()
             && !span.is_empty()
         {
             sourcemap_builder.add_source_mapping_for_name(self.code.as_bytes(), span, name);
         }
     }
+
+    #[cfg(not(feature = "sourcemap"))]
+    #[inline]
+    fn add_source_mapping_for_name(&mut self, _span: Span, _name: &str) {}
 }

crates/oxc_codegen/tests/integration/main.rs

@@ -2,6 +2,7 @@
 pub mod comments;
 pub mod esbuild;
 pub mod js;
+#[cfg(feature = "sourcemap")]
 pub mod sourcemap;
 pub mod ts;
 

crates/oxc_isolated_declarations/Cargo.toml

@@ -34,5 +34,5 @@ rustc-hash = { workspace = true }
 
 [dev-dependencies]
 insta = { workspace = true, features = ["glob"] }
-oxc_codegen = { workspace = true }
+oxc_codegen = { workspace = true, features = ["sourcemap"] }
 oxc_parser = { workspace = true }

crates/oxc_linter/Cargo.toml

@@ -30,7 +30,7 @@ oxc_ast = { workspace = true }
 oxc_ast_macros = { workspace = true }
 oxc_ast_visit = { workspace = true, features = ["serialize"] }
 oxc_cfg = { workspace = true }
-oxc_codegen = { workspace = true }
+oxc_codegen = { workspace = true, default-features = false }
 oxc_data_structures = { workspace = true, features = ["box_macros"] }
 oxc_diagnostics = { workspace = true }
 oxc_ecmascript = { workspace = true }

crates/oxc_minifier/Cargo.toml

@@ -24,7 +24,7 @@ doctest = false
 oxc_allocator = { workspace = true }
 oxc_ast = { workspace = true }
 oxc_ast_visit = { workspace = true }
-oxc_codegen = { workspace = true }
+oxc_codegen = { workspace = true, features = ["sourcemap"] }
 oxc_compat = { workspace = true }
 oxc_data_structures = { workspace = true, features = ["stack"] }
 oxc_ecmascript = { workspace = true }

crates/oxc_transformer/Cargo.toml

@@ -52,6 +52,6 @@ sha1 = { workspace = true }
 
 [dev-dependencies]
 insta = { workspace = true }
-oxc_codegen = { workspace = true }
+oxc_codegen = { workspace = true, features = ["sourcemap"] }
 oxc_parser = { workspace = true }
 pico-args = { workspace = true }

crates/oxc_transformer_plugins/Cargo.toml

@@ -41,7 +41,7 @@ insta = { workspace = true }
 pico-args = { workspace = true }
 similar = { workspace = true }
 
-oxc_codegen = { workspace = true }
+oxc_codegen = { workspace = true, features = ["sourcemap"] }
 oxc_minifier = { workspace = true }
 oxc_parser = { workspace = true }
 oxc_semantic = { workspace = true }

napi/minify/Cargo.toml

@@ -23,7 +23,7 @@ doctest = false
 
 [dependencies]
 oxc_allocator = { workspace = true }
-oxc_codegen = { workspace = true }
+oxc_codegen = { workspace = true, features = ["sourcemap"] }
 oxc_compat = { workspace = true }
 oxc_diagnostics = { workspace = true }
 oxc_minifier = { workspace = true }

tasks/ast_tools/Cargo.toml

@@ -22,7 +22,7 @@ doctest = false
 oxc_allocator = { workspace = true, optional = true }
 oxc_ast = { workspace = true, optional = true }
 oxc_ast_visit = { workspace = true, optional = true }
-oxc_codegen = { workspace = true, optional = true }
+oxc_codegen = { workspace = true, optional = true, features = ["sourcemap"] }
 oxc_minifier = { workspace = true, optional = true }
 oxc_parser = { workspace = true, optional = true }
 oxc_span = { workspace = true, features = ["serialize"], optional = true }

tasks/benchmark/Cargo.toml

@@ -62,7 +62,7 @@ bench = false
 oxc_allocator = { workspace = true, optional = true }
 oxc_ast = { workspace = true, optional = true, features = ["serialize"] }
 oxc_ast_visit = { workspace = true, optional = true, features = ["serialize"] }
-oxc_codegen = { workspace = true, optional = true }
+oxc_codegen = { workspace = true, optional = true, features = ["sourcemap"] }
 oxc_formatter = { workspace = true, optional = true }
 oxc_isolated_declarations = { workspace = true, optional = true }
 oxc_linter = { workspace = true, optional = true }

tasks/minsize/Cargo.toml

@@ -19,7 +19,7 @@ doctest = false
 
 [dependencies]
 oxc_allocator = { workspace = true }
-oxc_codegen = { workspace = true }
+oxc_codegen = { workspace = true, features = ["sourcemap"] }
 oxc_minifier = { workspace = true }
 oxc_parser = { workspace = true }
 oxc_semantic = { workspace = true }