Add support for deflate-raw format for CompressionStream

Author: Jake Champion

c-dependencies/js-compute-runtime/js-compute-builtins.cpp

@@ -3336,6 +3336,7 @@ enum { Transform, Format, State, Buffer, Count };
 enum class Format {
   GZIP,
   Deflate,
+  DeflateRaw,
 };
 
 // Using compression level 2, as per the reasoning here:
@@ -3578,6 +3579,8 @@ JSObject *create(JSContext *cx, HandleObject stream, Format format) {
   int window_bits = 15;
   if (format == Format::GZIP) {
     window_bits += 16;
+  } else if (format == Format::DeflateRaw) {
+    window_bits = -15;
   }
 
   int err =
@@ -3604,7 +3607,9 @@ bool constructor(JSContext *cx, unsigned argc, Value *vp) {
     return false;
 
   Format format;
-  if (!strcmp(format_chars.get(), "deflate")) {
+  if (!strcmp(format_chars.get(), "deflate-raw")) {
+    format = Format::DeflateRaw;
+  } else if (!strcmp(format_chars.get(), "deflate")) {
     format = Format::Deflate;
   } else if (!strcmp(format_chars.get(), "gzip")) {
     format = Format::GZIP;

tests/wpt-harness/expectations/compression/compression-bad-chunks.tentative.any.js.json

@@ -6,7 +6,7 @@
     "status": 0
   },
   "chunk of type undefined should error the stream for deflate-raw": {
-    "status": 1
+    "status": 0
   },
   "chunk of type null should error the stream for gzip": {
     "status": 0
@@ -15,7 +15,7 @@
     "status": 0
   },
   "chunk of type null should error the stream for deflate-raw": {
-    "status": 1
+    "status": 0
   },
   "chunk of type numeric should error the stream for gzip": {
     "status": 0
@@ -24,7 +24,7 @@
     "status": 0
   },
   "chunk of type numeric should error the stream for deflate-raw": {
-    "status": 1
+    "status": 0
   },
   "chunk of type object, not BufferSource should error the stream for gzip": {
     "status": 0
@@ -33,7 +33,7 @@
     "status": 0
   },
   "chunk of type object, not BufferSource should error the stream for deflate-raw": {
-    "status": 1
+    "status": 0
   },
   "chunk of type array should error the stream for gzip": {
     "status": 0
@@ -42,7 +42,7 @@
     "status": 0
   },
   "chunk of type array should error the stream for deflate-raw": {
-    "status": 1
+    "status": 0
   },
   "chunk of type SharedArrayBuffer should error the stream for gzip": {
     "status": 1

tests/wpt-harness/expectations/compression/compression-including-empty-chunk.tentative.any.js.json

@@ -6,7 +6,7 @@
     "status": 0
   },
   "the result of compressing [,Hello,Hello] with deflate-raw should be 'HelloHello'": {
-    "status": 1
+    "status": 0
   },
   "the result of compressing [Hello,,Hello] with deflate should be 'HelloHello'": {
     "status": 0
@@ -15,7 +15,7 @@
     "status": 0
   },
   "the result of compressing [Hello,,Hello] with deflate-raw should be 'HelloHello'": {
-    "status": 1
+    "status": 0
   },
   "the result of compressing [Hello,Hello,] with deflate should be 'HelloHello'": {
     "status": 0
@@ -24,6 +24,6 @@
     "status": 0
   },
   "the result of compressing [Hello,Hello,] with deflate-raw should be 'HelloHello'": {
-    "status": 1
+    "status": 0
   }
 }

tests/wpt-harness/expectations/compression/compression-multiple-chunks.tentative.any.js.json

@@ -6,7 +6,7 @@
     "status": 0
   },
   "compressing 2 chunks with deflate-raw should work": {
-    "status": 1
+    "status": 0
   },
   "compressing 3 chunks with deflate should work": {
     "status": 0
@@ -15,7 +15,7 @@
     "status": 0
   },
   "compressing 3 chunks with deflate-raw should work": {
-    "status": 1
+    "status": 0
   },
   "compressing 4 chunks with deflate should work": {
     "status": 0
@@ -24,7 +24,7 @@
     "status": 0
   },
   "compressing 4 chunks with deflate-raw should work": {
-    "status": 1
+    "status": 0
   },
   "compressing 5 chunks with deflate should work": {
     "status": 0
@@ -33,7 +33,7 @@
     "status": 0
   },
   "compressing 5 chunks with deflate-raw should work": {
-    "status": 1
+    "status": 0
   },
   "compressing 6 chunks with deflate should work": {
     "status": 0
@@ -42,7 +42,7 @@
     "status": 0
   },
   "compressing 6 chunks with deflate-raw should work": {
-    "status": 1
+    "status": 0
   },
   "compressing 7 chunks with deflate should work": {
     "status": 0
@@ -51,7 +51,7 @@
     "status": 0
   },
   "compressing 7 chunks with deflate-raw should work": {
-    "status": 1
+    "status": 0
   },
   "compressing 8 chunks with deflate should work": {
     "status": 0
@@ -60,7 +60,7 @@
     "status": 0
   },
   "compressing 8 chunks with deflate-raw should work": {
-    "status": 1
+    "status": 0
   },
   "compressing 9 chunks with deflate should work": {
     "status": 0
@@ -69,7 +69,7 @@
     "status": 0
   },
   "compressing 9 chunks with deflate-raw should work": {
-    "status": 1
+    "status": 0
   },
   "compressing 10 chunks with deflate should work": {
     "status": 0
@@ -78,7 +78,7 @@
     "status": 0
   },
   "compressing 10 chunks with deflate-raw should work": {
-    "status": 1
+    "status": 0
   },
   "compressing 11 chunks with deflate should work": {
     "status": 0
@@ -87,7 +87,7 @@
     "status": 0
   },
   "compressing 11 chunks with deflate-raw should work": {
-    "status": 1
+    "status": 0
   },
   "compressing 12 chunks with deflate should work": {
     "status": 0
@@ -96,7 +96,7 @@
     "status": 0
   },
   "compressing 12 chunks with deflate-raw should work": {
-    "status": 1
+    "status": 0
   },
   "compressing 13 chunks with deflate should work": {
     "status": 0
@@ -105,7 +105,7 @@
     "status": 0
   },
   "compressing 13 chunks with deflate-raw should work": {
-    "status": 1
+    "status": 0
   },
   "compressing 14 chunks with deflate should work": {
     "status": 0
@@ -114,7 +114,7 @@
     "status": 0
   },
   "compressing 14 chunks with deflate-raw should work": {
-    "status": 1
+    "status": 0
   },
   "compressing 15 chunks with deflate should work": {
     "status": 0
@@ -123,7 +123,7 @@
     "status": 0
   },
   "compressing 15 chunks with deflate-raw should work": {
-    "status": 1
+    "status": 0
   },
   "compressing 16 chunks with deflate should work": {
     "status": 0
@@ -132,6 +132,6 @@
     "status": 0
   },
   "compressing 16 chunks with deflate-raw should work": {
-    "status": 1
+    "status": 0
   }
 }

tests/wpt-harness/expectations/compression/compression-output-length.tentative.any.js.json

@@ -6,6 +6,6 @@
     "status": 0
   },
   "the length of deflated (with -raw) data should be shorter than that of the original data": {
-    "status": 1
+    "status": 0
   }
 }