f

Author: XadillaX

lib/zlib.js

@@ -238,9 +238,13 @@ const checkRangesOrGetDefault = hideStackFrames(
   }
 );
 
+const FLUSH_BOUND = [
+  [ Z_NO_FLUSH, Z_BLOCK ],
+  [ BROTLI_OPERATION_PROCESS, BROTLI_OPERATION_EMIT_METADATA ],
+];
 function isBrotliHandle(handle) {
-  return (handle instanceof binding.BrotliEncoder) ||
-    (handle instanceof binding.BrotliDecoder);
+  return ((handle instanceof binding.BrotliEncoder) ||
+    (handle instanceof binding.BrotliDecoder)) ? 1 : 0;
 }
 
 // The base class for all Zlib-style streams.
@@ -263,23 +267,13 @@ function ZlibBase(opts, mode, handle, { flush, finishFlush, fullFlush }) {
                                  `>= ${Z_MIN_CHUNK}`, chunkSize);
     }
 
-    if (!isBrotli) {
-      flush = checkRangesOrGetDefault(
-        opts.flush, 'options.flush',
-        Z_NO_FLUSH, Z_BLOCK, flush);
+    flush = checkRangesOrGetDefault(
+      opts.flush, 'options.flush',
+      FLUSH_BOUND[isBrotli][0], FLUSH_BOUND[isBrotli][1], flush);
 
-      finishFlush = checkRangesOrGetDefault(
-        opts.finishFlush, 'options.finishFlush',
-        Z_NO_FLUSH, Z_BLOCK, finishFlush);
-    } else {
-      flush = checkRangesOrGetDefault(
-        opts.flush, 'options.flush',
-        BROTLI_OPERATION_PROCESS, BROTLI_OPERATION_EMIT_METADATA, flush);
-
-      finishFlush = checkRangesOrGetDefault(
-        opts.finishFlush, 'options.finishFlush',
-        BROTLI_OPERATION_PROCESS, BROTLI_OPERATION_EMIT_METADATA, finishFlush);
-    }
+    finishFlush = checkRangesOrGetDefault(
+      opts.finishFlush, 'options.finishFlush',
+      FLUSH_BOUND[isBrotli][0], FLUSH_BOUND[isBrotli][1], finishFlush);
 
     maxOutputLength = checkRangesOrGetDefault(
       opts.maxOutputLength, 'options.maxOutputLength',