feat: support not emitting use

searchfe · Jun 18, 2020 · b9831ff · b9831ff
1 parent 78e4407
commit b9831ff
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diff --git a/src/emitter.ts b/src/emitter.ts
@@ -2187,6 +2187,9 @@ export function emitFile(
             const moduleName = getImportModuleName(importNode);
             node.forEachChild((element: ts.ImportSpecifier) => {
                 if (isClassLike(element.name, typeChecker)) {
+                    if (state.modules[moduleName] && state.modules[moduleName].used) {
+                        return;
+                    }
                     writePunctuation("use");
                     writeSpace();
                     const namespace = state.modules[moduleName] && state.modules[moduleName].namespace;

diff --git a/types/index.d.ts b/types/index.d.ts
@@ -22,6 +22,11 @@ export interface ModuleInfo {
      **/
     namespace?: string | false;
 
+    /**
+     * 是否已经 use 过
+     */
+    used?: boolean;
+
     /**
      * 是否已经被引入，如果是 true，不会输出 require_once
      *