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use serde::Deserialize;use swc_common::comments::{Comments, SingleThreadedComments};use swc_common::sync::Lrc;use swc_common::util::take::Take;use swc_common::{Mark, SourceMap};use swc_ecma_minifier::optimize;use swc_ecma_minifier::option::{MangleOptions, MinifyOptions};use swc_ecmascript::ast::*;use swc_ecmascript::visit::{noop_visit_mut_type, VisitMut};
pub struct MinifierPass {  pub cm: Lrc<SourceMap>,  pub comments: Option<SingleThreadedComments>,  pub unresolved_mark: Mark,  pub top_level_mark: Mark,  pub options: MinifierOptions,}
#[derive(Deserialize, Debug, Clone, Copy)]#[serde(rename_all = "camelCase")]pub struct MinifierOptions {  pub compress: bool,}
impl VisitMut for MinifierPass {  noop_visit_mut_type!();
  fn visit_mut_module(&mut self, m: &mut Module) {    m.map_with_mut(|m| {      optimize(        m.into(),        self.cm.clone(),        self.comments.as_ref().map(|v| v as &dyn Comments),        None,        &MinifyOptions {          compress: if self.options.compress {            Some(Default::default())          } else {            None          },          mangle: Some(MangleOptions {            top_level: true,            ..Default::default()          }),          ..Default::default()        },        &swc_ecma_minifier::option::ExtraOptions {          unresolved_mark: self.unresolved_mark,          top_level_mark: self.top_level_mark,        },      )      .expect_module()    })  }}