fix eliminate-imports

swc-project · kdy1 · Dec 2, 2024 · Nov 4, 2024 · Nov 4, 2024 · Nov 4, 2024
commit 466609b62789fe75bf8833eae83602b4afcfbadd
diff --git a/crates/swc_typescript/src/fast_dts/type_usage.rs b/crates/swc_typescript/src/fast_dts/type_usage.rs
@@ -1,8 +1,8 @@
 use std::collections::HashSet;
 
 use swc_ecma_ast::{
-    Decl, ExportDefaultExpr, Id, ImportSpecifier, ModuleDecl, ModuleExportName, ModuleItem,
-    NamedExport, Stmt, TsEntityName,
+    Class, Decl, ExportDefaultExpr, Id, ImportSpecifier, ModuleDecl, ModuleExportName, ModuleItem,
+    NamedExport, Stmt, TsEntityName, TsExprWithTypeArgs,
 };
 use swc_ecma_visit::{Visit, VisitMut, VisitMutWith, VisitWith};
 
@@ -12,6 +12,24 @@ pub struct TypeUsageAnalyzer {
 }
 
 impl Visit for TypeUsageAnalyzer {
+    fn visit_class(&mut self, node: &Class) {
+        if let Some(super_class) = &node.super_class {
+            // TODO:
+            if let Some(ident) = super_class.as_ident() {
+                self.used_ids.insert(ident.to_id());
+            }
+        }
+        node.visit_children_with(self);
+    }
+
+    fn visit_ts_expr_with_type_args(&mut self, node: &TsExprWithTypeArgs) {
+        // TODO:
+        if let Some(ident) = node.expr.as_ident() {
+            self.used_ids.insert(ident.to_id());
+        }
+        node.visit_children_with(self);
+    }
+
     fn visit_ts_entity_name(&mut self, node: &TsEntityName) {
         match node {
             TsEntityName::TsQualifiedName(ts_qualified_name) => {

@@ -0,0 +1,11 @@
+```==================== .D.TS ====================
+
+declare function MyFunction(): string;
+declare global {
+    interface Window {
+        MyFunction: typeof MyFunction;
+    }
+}
+export { };
+
+
@@ -0,0 +1,15 @@
+```==================== .D.TS ====================
+
+import { BExtend } from 'mod';
+export interface A extends AExtend<Type> {
+}
+export declare class B extends BExtend<Type> {
+}
+export declare class C implements CImplements1<CType>, CImplements2<CType> {
+}
+export declare function foo(this: ThisType1): void;
+export declare const bar: (this: ThisType2) => void;
+export type F<X extends InferType1> = X extends infer U extends InferType2 ? U : never;
+export { Unused } from './unused';
+
+