Fix support for emitDeclarationOnly

Closes #1716
TypeStrong · Oct 2, 2021 · f3ff7cf · f3ff7cf
1 parent ea0b3d7
commit f3ff7cf
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -9,6 +9,7 @@
 
 -   TypeDoc will now only create one highlighter for rendering code, saving ~200-500ms for rendering time.
 -   For compatibility with JSDoc, TypeDoc will now strip `<caption>` elements from `@example` tags, resolves #1679.
+-   TypeScript's `emitDeclarationOnly` compiler option is now supported, resolves #1716.
 -   Fixed a crash when converting the `globalThis` namespace, could only be caused by a plugin.
 
 ### Thanks!

diff --git a/src/lib/utils/options/options.ts b/src/lib/utils/options/options.ts
@@ -323,11 +323,17 @@ export class Options {
     }
 
     /** @internal */
-    fixCompilerOptions(options: Readonly<ts.CompilerOptions>) {
-        return {
-            ...options,
-            noEmit: !this.getValue("emit"),
-        };
+    fixCompilerOptions(
+        options: Readonly<ts.CompilerOptions>
+    ): ts.CompilerOptions {
+        const result = { ...options };
+
+        if (!this.getValue("emit")) {
+            result.noEmit = true;
+            delete result.emitDeclarationOnly;
+        }
+
+        return result;
     }
 
     /**