fix(swc): Fix sourceMap option of minify (#2380)

src/config/mod.rs

@@ -543,7 +543,7 @@ pub struct JsMinifyOptions {
     pub toplevel: bool,
 
     #[serde(default)]
-    pub source_map: bool,
+    pub source_map: BoolOrObject<TerserSourceMapOption>,
 
     #[serde(default)]
     pub output_path: Option<String>,
@@ -551,6 +551,22 @@ pub struct JsMinifyOptions {
     #[serde(default)]
     pub inline_sources_content: bool,
 }
+/// `jsc.minify.sourceMap`
+#[derive(Debug, Clone, Default, Serialize, Deserialize)]
+#[serde(deny_unknown_fields, rename_all = "camelCase")]
+pub struct TerserSourceMapOption {
+    #[serde(default)]
+    pub filename: Option<String>,
+
+    #[serde(default)]
+    pub url: Option<String>,
+
+    #[serde(default)]
+    pub root: Option<String>,
+
+    #[serde(default)]
+    pub content: Option<String>,
+}
 
 /// `jsc.minify.format`.
 #[derive(Debug, Clone, Default, Serialize, Deserialize)]

src/lib.rs

@@ -908,10 +908,20 @@ impl Compiler {
         self.run(|| {
             let target = opts.ecma.clone().into();
 
-            let orig = if opts.source_map {
-                self.get_orig_src_map(&fm, &InputSourceMap::Bool(true), true)?
-            } else {
-                None
+            let (source_map, orig) = match &opts.source_map {
+                BoolOrObject::Bool(false) => (SourceMapsConfig::Bool(false), None),
+                BoolOrObject::Bool(true) => (SourceMapsConfig::Bool(true), None),
+                BoolOrObject::Obj(obj) => {
+                    let orig = obj
+                        .content
+                        .as_ref()
+                        .map(|s| sourcemap::SourceMap::from_slice(s.as_bytes()));
+                    let orig = match orig {
+                        Some(v) => Some(v?),
+                        None => None,
+                    };
+                    (SourceMapsConfig::Bool(true), orig)
+                }
             };
 
             let min_opts = MinifyOptions {
@@ -980,7 +990,7 @@ impl Compiler {
                 opts.output_path.clone().map(From::from),
                 opts.inline_sources_content,
                 target,
-                SourceMapsConfig::Bool(opts.source_map),
+                source_map,
                 &source_map_names,
                 orig.as_ref(),
                 true,