From de9a7df4ed7e360dd9b35f1139dd7306cba9f72f Mon Sep 17 00:00:00 2001
From: Marco Castelluccio <mcastelluccio@mozilla.com>
Date: Wed, 1 Apr 2020 13:19:57 +0000
Subject: [PATCH] Bug 1623954 [wpt PR 22361] - Encoding: use Wasm to get a
 SharedArrayBuffer instance, a=testonly

Automatic update from web-platform-tests
Encoding: use Wasm to get a SharedArrayBuffer instance

For https://github.com/web-platform-tests/wpt/issues/22358.
--

wpt-commits: 4e83bff9e071561dd10538dda073cd2f43b68e4a
wpt-pr: 22361

UltraBlame original commit: 401be49e000042c8161bbfc88ff20d8a493cb970
---
 testing/web-platform/tests/common/sab.js      | 105 ++++++++++++++++++
 .../tests/encoding/encodeInto.any.js          |  37 +++---
 .../tests/encoding/streams/decode-utf8.any.js |  15 +--
 .../tests/encoding/textdecoder-copy.any.js    |  22 ++--
 .../encoding/textdecoder-streaming.any.js     |   7 +-
 5 files changed, 146 insertions(+), 40 deletions(-)
 create mode 100644 testing/web-platform/tests/common/sab.js

diff --git a/testing/web-platform/tests/common/sab.js b/testing/web-platform/tests/common/sab.js
new file mode 100644
index 0000000000000..ff8a86b77691d
--- /dev/null
+++ b/testing/web-platform/tests/common/sab.js
@@ -0,0 +1,105 @@
+const
+createBuffer
+=
+(
+(
+)
+=
+>
+{
+const
+sabConstructor
+=
+new
+WebAssembly
+.
+Memory
+(
+{
+shared
+:
+true
+initial
+:
+0
+maximum
+:
+0
+}
+)
+.
+buffer
+.
+constructor
+;
+return
+(
+type
+length
+)
+=
+>
+{
+if
+(
+type
+=
+=
+=
+"
+ArrayBuffer
+"
+)
+{
+return
+new
+ArrayBuffer
+(
+length
+)
+;
+}
+else
+if
+(
+type
+=
+=
+=
+"
+SharedArrayBuffer
+"
+)
+{
+return
+new
+sabConstructor
+(
+length
+)
+;
+}
+else
+{
+throw
+new
+Error
+(
+"
+type
+has
+to
+be
+ArrayBuffer
+or
+SharedArrayBuffer
+"
+)
+;
+}
+}
+}
+)
+(
+)
+;
diff --git a/testing/web-platform/tests/encoding/encodeInto.any.js b/testing/web-platform/tests/encoding/encodeInto.any.js
index c69a62d0ec962..a2e2c61d2b8b6 100644
--- a/testing/web-platform/tests/encoding/encodeInto.any.js
+++ b/testing/web-platform/tests/encoding/encodeInto.any.js
@@ -366,37 +366,46 @@ destinationLength
 destinationData
 .
 bufferIncrease
+;
+const
 destinationOffset
 =
 destinationData
 .
 destinationOffset
+;
+const
 destinationLength
 =
 testData
 .
 destinationLength
+;
+const
 destinationFiller
 =
 destinationData
 .
 filler
+;
+const
 encoder
 =
 new
 TextEncoder
 (
 )
+;
+const
 buffer
 =
-new
-self
-[
-arrayBufferOrSharedArrayBuffer
-]
+createBuffer
 (
+arrayBufferOrSharedArrayBuffer
 bufferLength
 )
+;
+const
 view
 =
 new
@@ -406,6 +415,8 @@ buffer
 destinationOffset
 destinationLength
 )
+;
+const
 fullView
 =
 new
@@ -413,6 +424,8 @@ Uint8Array
 (
 buffer
 )
+;
+const
 control
 =
 new
@@ -719,12 +732,9 @@ encodeInto
 new
 view
 (
-new
-self
-[
-arrayBufferOrSharedArrayBuffer
-]
+createBuffer
 (
+arrayBufferOrSharedArrayBuffer
 0
 )
 )
@@ -800,12 +810,9 @@ encodeInto
 (
 "
 "
-new
-self
-[
-arrayBufferOrSharedArrayBuffer
-]
+createBuffer
 (
+arrayBufferOrSharedArrayBuffer
 10
 )
 )
diff --git a/testing/web-platform/tests/encoding/streams/decode-utf8.any.js b/testing/web-platform/tests/encoding/streams/decode-utf8.any.js
index 8ad78e4640e37..dfbe0dcc607ef 100644
--- a/testing/web-platform/tests/encoding/streams/decode-utf8.any.js
+++ b/testing/web-platform/tests/encoding/streams/decode-utf8.any.js
@@ -39,18 +39,16 @@ inputChunkData
 109
 115
 ]
+;
 const
 emptyChunk
 =
 new
 Uint8Array
 (
-new
-self
-[
-arrayBufferOrSharedArrayBuffer
-]
+createBuffer
 (
+arrayBufferOrSharedArrayBuffer
 0
 )
 )
@@ -61,12 +59,9 @@ inputChunk
 new
 Uint8Array
 (
-new
-self
-[
-arrayBufferOrSharedArrayBuffer
-]
+createBuffer
 (
+arrayBufferOrSharedArrayBuffer
 inputChunkData
 .
 length
diff --git a/testing/web-platform/tests/encoding/textdecoder-copy.any.js b/testing/web-platform/tests/encoding/textdecoder-copy.any.js
index 17c3738768635..b4d5231013059 100644
--- a/testing/web-platform/tests/encoding/textdecoder-copy.any.js
+++ b/testing/web-platform/tests/encoding/textdecoder-copy.any.js
@@ -23,14 +23,13 @@ test
 const
 buf
 =
-new
-self
-[
-arrayBufferOrSharedArrayBuffer
-]
+createBuffer
 (
+arrayBufferOrSharedArrayBuffer
 2
 )
+;
+const
 view
 =
 new
@@ -38,16 +37,17 @@ Uint8Array
 (
 buf
 )
+;
+const
 buf2
 =
-new
-self
-[
-arrayBufferOrSharedArrayBuffer
-]
+createBuffer
 (
+arrayBufferOrSharedArrayBuffer
 2
 )
+;
+const
 view2
 =
 new
@@ -55,6 +55,8 @@ Uint8Array
 (
 buf2
 )
+;
+const
 decoder
 =
 new
diff --git a/testing/web-platform/tests/encoding/textdecoder-streaming.any.js b/testing/web-platform/tests/encoding/textdecoder-streaming.any.js
index 4a580fac25fa1..da157957a0123 100644
--- a/testing/web-platform/tests/encoding/textdecoder-streaming.any.js
+++ b/testing/web-platform/tests/encoding/textdecoder-streaming.any.js
@@ -302,12 +302,9 @@ uintArray
 new
 Uint8Array
 (
-new
-self
-[
-arrayBufferOrSharedArrayBuffer
-]
+createBuffer
 (
+arrayBufferOrSharedArrayBuffer
 sub
 .
 length