microsoft · mhegazy · Jun 8, 2016 · May 23, 2016
diff --git a/Jakefile.js b/Jakefile.js
@@ -187,7 +187,10 @@ var es2016LibrarySourceMap = es2016LibrarySource.map(function (source) {
     return { target: "lib." + source, sources: ["header.d.ts", source] };
 });
 
-var es2017LibrarySource = ["es2017.object.d.ts"];
+var es2017LibrarySource = [
+    "es2017.object.d.ts",
+    "es2017.sharedmemory.d.ts"
+];
 
 var es2017LibrarySourceMap = es2017LibrarySource.map(function (source) {
     return { target: "lib." + source, sources: ["header.d.ts", source] };

diff --git a/src/compiler/commandLineParser.ts b/src/compiler/commandLineParser.ts
@@ -391,7 +391,8 @@ namespace ts {
                     "es2015.symbol": "lib.es2015.symbol.d.ts",
                     "es2015.symbol.wellknown": "lib.es2015.symbol.wellknown.d.ts",
                     "es2016.array.include": "lib.es2016.array.include.d.ts",
-                    "es2017.object": "lib.es2017.object.d.ts"
+                    "es2017.object": "lib.es2017.object.d.ts",
+                    "es2017.sharedmemory": "lib.es2017.sharedmemory.d.ts"
                 },
             },
             description: Diagnostics.Specify_library_files_to_be_included_in_the_compilation_Colon

diff --git a/src/lib/es2017.d.ts b/src/lib/es2017.d.ts
@@ -1,2 +1,3 @@
 /// <reference path="lib.es2016.d.ts" />
-/// <reference path="lib.es2017.object.d.ts" />
+/// <reference path="lib.es2017.object.d.ts" />
+/// <reference path="lib.es2017.sharedmemory.d.ts" />
diff --git a/src/lib/es2017.sharedmemory.d.ts b/src/lib/es2017.sharedmemory.d.ts
@@ -0,0 +1,27 @@
+/// <reference path="lib.es2015.symbol.d.ts" />
+/// <reference path="lib.es2015.symbol.wellknown.d.ts" />
+
+interface SharedArrayBuffer {
+    /**
+      * Read-only. The length of the ArrayBuffer (in bytes).
+      */
+    readonly byteLength: number;
+
+    /*
+     * The SharedArrayBuffer constructor's length property whose value is 1.
+     */
+    length: number;
+    /**
+      * Returns a section of an SharedArrayBuffer.
+      */ 
+    slice(begin:number, end?:number): SharedArrayBuffer;
+    readonly [Symbol.species]: SharedArrayBuffer;
+    readonly [Symbol.toStringTag]: "SharedArrayBuffer";
+}
+
+interface SharedArrayBufferConstructor {
+    readonly prototype: SharedArrayBuffer;
+    new (byteLength: number): SharedArrayBuffer;
+}
+
+declare var SharedArrayBuffer: SharedArrayBufferConstructor;
diff --git a/tests/baselines/reference/staticAnonymousTypeNotReferencingTypeParameter.symbols b/tests/baselines/reference/staticAnonymousTypeNotReferencingTypeParameter.symbols
@@ -562,9 +562,9 @@ class ListWrapper {
 >ListWrapper : Symbol(ListWrapper, Decl(staticAnonymousTypeNotReferencingTypeParameter.ts, 38, 1))
 >l : Symbol(l, Decl(staticAnonymousTypeNotReferencingTypeParameter.ts, 113, 43))
 >T : Symbol(T, Decl(staticAnonymousTypeNotReferencingTypeParameter.ts, 113, 16))
->JSON.stringify : Symbol(JSON.stringify, Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --))
+>JSON.stringify : Symbol(JSON.stringify, Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --))
 >JSON : Symbol(JSON, Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --))
->stringify : Symbol(JSON.stringify, Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --))
+>stringify : Symbol(JSON.stringify, Decl(lib.d.ts, --, --), Decl(lib.d.ts, --, --))
 >l : Symbol(l, Decl(staticAnonymousTypeNotReferencingTypeParameter.ts, 113, 43))
 
   static maximum<T>(dit: typeof ListWrapper, list: T[], predicate: (t: T) => number): T {

diff --git a/tests/baselines/reference/staticAnonymousTypeNotReferencingTypeParameter.types b/tests/baselines/reference/staticAnonymousTypeNotReferencingTypeParameter.types
@@ -662,9 +662,9 @@ class ListWrapper {
 >l : T[]
 >T : T
 >JSON.stringify(l) : string
->JSON.stringify : { (value: any): string; (value: any, replacer: (key: string, value: any) => any): string; (value: any, replacer: any[]): string; (value: any, replacer: (key: string, value: any) => any, space: string | number): string; (value: any, replacer: any[], space: string | number): string; }
+>JSON.stringify : { (value: any, replacer?: (key: string, value: any) => any, space?: string | number): string; (value: any, replacer?: (number | string)[], space?: string | number): string; }
 >JSON : JSON
->stringify : { (value: any): string; (value: any, replacer: (key: string, value: any) => any): string; (value: any, replacer: any[]): string; (value: any, replacer: (key: string, value: any) => any, space: string | number): string; (value: any, replacer: any[], space: string | number): string; }
+>stringify : { (value: any, replacer?: (key: string, value: any) => any, space?: string | number): string; (value: any, replacer?: (number | string)[], space?: string | number): string; }
 >l : T[]
 
   static maximum<T>(dit: typeof ListWrapper, list: T[], predicate: (t: T) => number): T {

diff --git a/tests/baselines/reference/useSharedArrayBuffer1.js b/tests/baselines/reference/useSharedArrayBuffer1.js
@@ -0,0 +1,10 @@
+//// [useSharedArrayBuffer1.ts]
+
+var foge = new SharedArrayBuffer(1024);
+var bar = foge.slice(1, 10);
+var len = foge.byteLength;
+
+//// [useSharedArrayBuffer1.js]
+var foge = new SharedArrayBuffer(1024);
+var bar = foge.slice(1, 10);
+var len = foge.byteLength;
diff --git a/tests/baselines/reference/useSharedArrayBuffer1.symbols b/tests/baselines/reference/useSharedArrayBuffer1.symbols
@@ -0,0 +1,18 @@
+=== tests/cases/conformance/es2017/useSharedArrayBuffer1.ts ===
+
+var foge = new SharedArrayBuffer(1024);
+>foge : Symbol(foge, Decl(useSharedArrayBuffer1.ts, 1, 3))
+>SharedArrayBuffer : Symbol(SharedArrayBuffer, Decl(lib.es2017.sharedmemory.d.ts, --, --), Decl(lib.es2017.sharedmemory.d.ts, --, --))
+
+var bar = foge.slice(1, 10);
+>bar : Symbol(bar, Decl(useSharedArrayBuffer1.ts, 2, 3))
+>foge.slice : Symbol(SharedArrayBuffer.slice, Decl(lib.es2017.sharedmemory.d.ts, --, --))
+>foge : Symbol(foge, Decl(useSharedArrayBuffer1.ts, 1, 3))
+>slice : Symbol(SharedArrayBuffer.slice, Decl(lib.es2017.sharedmemory.d.ts, --, --))
+
+var len = foge.byteLength;
+>len : Symbol(len, Decl(useSharedArrayBuffer1.ts, 3, 3))
+>foge.byteLength : Symbol(SharedArrayBuffer.byteLength, Decl(lib.es2017.sharedmemory.d.ts, --, --))
+>foge : Symbol(foge, Decl(useSharedArrayBuffer1.ts, 1, 3))
+>byteLength : Symbol(SharedArrayBuffer.byteLength, Decl(lib.es2017.sharedmemory.d.ts, --, --))
+
diff --git a/tests/baselines/reference/useSharedArrayBuffer1.types b/tests/baselines/reference/useSharedArrayBuffer1.types
@@ -0,0 +1,23 @@
+=== tests/cases/conformance/es2017/useSharedArrayBuffer1.ts ===
+
+var foge = new SharedArrayBuffer(1024);
+>foge : SharedArrayBuffer
+>new SharedArrayBuffer(1024) : SharedArrayBuffer
+>SharedArrayBuffer : SharedArrayBufferConstructor
+>1024 : number
+
+var bar = foge.slice(1, 10);
+>bar : SharedArrayBuffer
+>foge.slice(1, 10) : SharedArrayBuffer
+>foge.slice : (begin: number, end?: number) => SharedArrayBuffer
+>foge : SharedArrayBuffer
+>slice : (begin: number, end?: number) => SharedArrayBuffer
+>1 : number
+>10 : number
+
+var len = foge.byteLength;
+>len : number
+>foge.byteLength : number
+>foge : SharedArrayBuffer
+>byteLength : number
+
diff --git a/tests/baselines/reference/useSharedArrayBuffer2.errors.txt b/tests/baselines/reference/useSharedArrayBuffer2.errors.txt
@@ -0,0 +1,10 @@
+tests/cases/conformance/es2017/useSharedArrayBuffer2.ts(2,16): error TS2304: Cannot find name 'SharedArrayBuffer'.
+
+
+==== tests/cases/conformance/es2017/useSharedArrayBuffer2.ts (1 errors) ====
+
+    var foge = new SharedArrayBuffer(1024);
+                   ~~~~~~~~~~~~~~~~~
+!!! error TS2304: Cannot find name 'SharedArrayBuffer'.
+    var bar = foge.slice(1, 10);
+    var len = foge.byteLength;
diff --git a/tests/baselines/reference/useSharedArrayBuffer2.js b/tests/baselines/reference/useSharedArrayBuffer2.js
@@ -0,0 +1,10 @@
+//// [useSharedArrayBuffer2.ts]
+
+var foge = new SharedArrayBuffer(1024);
+var bar = foge.slice(1, 10);
+var len = foge.byteLength;
+
+//// [useSharedArrayBuffer2.js]
+var foge = new SharedArrayBuffer(1024);
+var bar = foge.slice(1, 10);
+var len = foge.byteLength;
diff --git a/tests/baselines/reference/useSharedArrayBuffer3.errors.txt b/tests/baselines/reference/useSharedArrayBuffer3.errors.txt
@@ -0,0 +1,10 @@
+tests/cases/conformance/es2017/useSharedArrayBuffer3.ts(2,16): error TS2304: Cannot find name 'SharedArrayBuffer'.
+
+
+==== tests/cases/conformance/es2017/useSharedArrayBuffer3.ts (1 errors) ====
+
+    var foge = new SharedArrayBuffer(1024);
+                   ~~~~~~~~~~~~~~~~~
+!!! error TS2304: Cannot find name 'SharedArrayBuffer'.
+    var bar = foge.slice(1, 10);
+    var len = foge.byteLength;
diff --git a/tests/baselines/reference/useSharedArrayBuffer3.js b/tests/baselines/reference/useSharedArrayBuffer3.js
@@ -0,0 +1,10 @@
+//// [useSharedArrayBuffer3.ts]
+
+var foge = new SharedArrayBuffer(1024);
+var bar = foge.slice(1, 10);
+var len = foge.byteLength;
+
+//// [useSharedArrayBuffer3.js]
+var foge = new SharedArrayBuffer(1024);
+var bar = foge.slice(1, 10);
+var len = foge.byteLength;
diff --git a/tests/baselines/reference/useSharedArrayBuffer4.js b/tests/baselines/reference/useSharedArrayBuffer4.js
@@ -0,0 +1,14 @@
+//// [useSharedArrayBuffer4.ts]
+
+var foge = new SharedArrayBuffer(1024);
+var bar = foge.slice(1, 10);
+var species = foge[Symbol.species];
+var stringTag = foge[Symbol.toStringTag];
+var len = foge.byteLength;
+
+//// [useSharedArrayBuffer4.js]
+var foge = new SharedArrayBuffer(1024);
+var bar = foge.slice(1, 10);
+var species = foge[Symbol.species];
+var stringTag = foge[Symbol.toStringTag];
+var len = foge.byteLength;
diff --git a/tests/baselines/reference/useSharedArrayBuffer4.symbols b/tests/baselines/reference/useSharedArrayBuffer4.symbols
@@ -0,0 +1,32 @@
+=== tests/cases/conformance/es2017/useSharedArrayBuffer4.ts ===
+
+var foge = new SharedArrayBuffer(1024);
+>foge : Symbol(foge, Decl(useSharedArrayBuffer4.ts, 1, 3))
+>SharedArrayBuffer : Symbol(SharedArrayBuffer, Decl(lib.es2017.sharedmemory.d.ts, --, --), Decl(lib.es2017.sharedmemory.d.ts, --, --))
+
+var bar = foge.slice(1, 10);
+>bar : Symbol(bar, Decl(useSharedArrayBuffer4.ts, 2, 3))
+>foge.slice : Symbol(SharedArrayBuffer.slice, Decl(lib.es2017.sharedmemory.d.ts, --, --))
+>foge : Symbol(foge, Decl(useSharedArrayBuffer4.ts, 1, 3))
+>slice : Symbol(SharedArrayBuffer.slice, Decl(lib.es2017.sharedmemory.d.ts, --, --))
+
+var species = foge[Symbol.species];
+>species : Symbol(species, Decl(useSharedArrayBuffer4.ts, 3, 3))
+>foge : Symbol(foge, Decl(useSharedArrayBuffer4.ts, 1, 3))
+>Symbol.species : Symbol(SymbolConstructor.species, Decl(lib.es2015.symbol.wellknown.d.ts, --, --))
+>Symbol : Symbol(Symbol, Decl(lib.es2015.symbol.wellknown.d.ts, --, --), Decl(lib.es2015.symbol.d.ts, --, --), Decl(lib.es2015.symbol.d.ts, --, --))
+>species : Symbol(SymbolConstructor.species, Decl(lib.es2015.symbol.wellknown.d.ts, --, --))
+
+var stringTag = foge[Symbol.toStringTag];
+>stringTag : Symbol(stringTag, Decl(useSharedArrayBuffer4.ts, 4, 3))
+>foge : Symbol(foge, Decl(useSharedArrayBuffer4.ts, 1, 3))
+>Symbol.toStringTag : Symbol(SymbolConstructor.toStringTag, Decl(lib.es2015.symbol.wellknown.d.ts, --, --))
+>Symbol : Symbol(Symbol, Decl(lib.es2015.symbol.wellknown.d.ts, --, --), Decl(lib.es2015.symbol.d.ts, --, --), Decl(lib.es2015.symbol.d.ts, --, --))
+>toStringTag : Symbol(SymbolConstructor.toStringTag, Decl(lib.es2015.symbol.wellknown.d.ts, --, --))
+
+var len = foge.byteLength;
+>len : Symbol(len, Decl(useSharedArrayBuffer4.ts, 5, 3))
+>foge.byteLength : Symbol(SharedArrayBuffer.byteLength, Decl(lib.es2017.sharedmemory.d.ts, --, --))
+>foge : Symbol(foge, Decl(useSharedArrayBuffer4.ts, 1, 3))
+>byteLength : Symbol(SharedArrayBuffer.byteLength, Decl(lib.es2017.sharedmemory.d.ts, --, --))
+
diff --git a/tests/baselines/reference/useSharedArrayBuffer4.types b/tests/baselines/reference/useSharedArrayBuffer4.types
@@ -0,0 +1,39 @@
+=== tests/cases/conformance/es2017/useSharedArrayBuffer4.ts ===
+
+var foge = new SharedArrayBuffer(1024);
+>foge : SharedArrayBuffer
+>new SharedArrayBuffer(1024) : SharedArrayBuffer
+>SharedArrayBuffer : SharedArrayBufferConstructor
+>1024 : number
+
+var bar = foge.slice(1, 10);
+>bar : SharedArrayBuffer
+>foge.slice(1, 10) : SharedArrayBuffer
+>foge.slice : (begin: number, end?: number) => SharedArrayBuffer
+>foge : SharedArrayBuffer
+>slice : (begin: number, end?: number) => SharedArrayBuffer
+>1 : number
+>10 : number
+
+var species = foge[Symbol.species];
+>species : SharedArrayBuffer
+>foge[Symbol.species] : SharedArrayBuffer
+>foge : SharedArrayBuffer
+>Symbol.species : symbol
+>Symbol : SymbolConstructor
+>species : symbol
+
+var stringTag = foge[Symbol.toStringTag];
+>stringTag : "SharedArrayBuffer"
+>foge[Symbol.toStringTag] : "SharedArrayBuffer"
+>foge : SharedArrayBuffer
+>Symbol.toStringTag : symbol
+>Symbol : SymbolConstructor
+>toStringTag : symbol
+
+var len = foge.byteLength;
+>len : number
+>foge.byteLength : number
+>foge : SharedArrayBuffer
+>byteLength : number
+
diff --git a/tests/baselines/reference/useSharedArrayBuffer5.js b/tests/baselines/reference/useSharedArrayBuffer5.js
@@ -0,0 +1,10 @@
+//// [useSharedArrayBuffer5.ts]
+
+var foge = new SharedArrayBuffer(1024);
+var species = foge[Symbol.species];
+var stringTag = foge[Symbol.toStringTag];
+
+//// [useSharedArrayBuffer5.js]
+var foge = new SharedArrayBuffer(1024);
+var species = foge[Symbol.species];
+var stringTag = foge[Symbol.toStringTag];
diff --git a/tests/baselines/reference/useSharedArrayBuffer5.symbols b/tests/baselines/reference/useSharedArrayBuffer5.symbols
@@ -0,0 +1,20 @@
+=== tests/cases/conformance/es2017/useSharedArrayBuffer5.ts ===
+
+var foge = new SharedArrayBuffer(1024);
+>foge : Symbol(foge, Decl(useSharedArrayBuffer5.ts, 1, 3))
+>SharedArrayBuffer : Symbol(SharedArrayBuffer, Decl(lib.es2017.sharedmemory.d.ts, --, --), Decl(lib.es2017.sharedmemory.d.ts, --, --))
+
+var species = foge[Symbol.species];
+>species : Symbol(species, Decl(useSharedArrayBuffer5.ts, 2, 3))
+>foge : Symbol(foge, Decl(useSharedArrayBuffer5.ts, 1, 3))
+>Symbol.species : Symbol(SymbolConstructor.species, Decl(lib.es2015.symbol.wellknown.d.ts, --, --))
+>Symbol : Symbol(Symbol, Decl(lib.es2015.symbol.wellknown.d.ts, --, --), Decl(lib.es2015.symbol.d.ts, --, --), Decl(lib.es2015.symbol.d.ts, --, --))
+>species : Symbol(SymbolConstructor.species, Decl(lib.es2015.symbol.wellknown.d.ts, --, --))
+
+var stringTag = foge[Symbol.toStringTag];
+>stringTag : Symbol(stringTag, Decl(useSharedArrayBuffer5.ts, 3, 3))
+>foge : Symbol(foge, Decl(useSharedArrayBuffer5.ts, 1, 3))
+>Symbol.toStringTag : Symbol(SymbolConstructor.toStringTag, Decl(lib.es2015.symbol.wellknown.d.ts, --, --))
+>Symbol : Symbol(Symbol, Decl(lib.es2015.symbol.wellknown.d.ts, --, --), Decl(lib.es2015.symbol.d.ts, --, --), Decl(lib.es2015.symbol.d.ts, --, --))
+>toStringTag : Symbol(SymbolConstructor.toStringTag, Decl(lib.es2015.symbol.wellknown.d.ts, --, --))
+
diff --git a/tests/baselines/reference/useSharedArrayBuffer5.types b/tests/baselines/reference/useSharedArrayBuffer5.types
@@ -0,0 +1,24 @@
+=== tests/cases/conformance/es2017/useSharedArrayBuffer5.ts ===
+
+var foge = new SharedArrayBuffer(1024);
+>foge : SharedArrayBuffer
+>new SharedArrayBuffer(1024) : SharedArrayBuffer
+>SharedArrayBuffer : SharedArrayBufferConstructor
+>1024 : number
+
+var species = foge[Symbol.species];
+>species : SharedArrayBuffer
+>foge[Symbol.species] : SharedArrayBuffer
+>foge : SharedArrayBuffer
+>Symbol.species : symbol
+>Symbol : SymbolConstructor
+>species : symbol
+
+var stringTag = foge[Symbol.toStringTag];
+>stringTag : "SharedArrayBuffer"
+>foge[Symbol.toStringTag] : "SharedArrayBuffer"
+>foge : SharedArrayBuffer
+>Symbol.toStringTag : symbol
+>Symbol : SymbolConstructor
+>toStringTag : symbol
+
diff --git a/tests/baselines/reference/useSharedArrayBuffer6.js b/tests/baselines/reference/useSharedArrayBuffer6.js
@@ -0,0 +1,10 @@
+//// [useSharedArrayBuffer6.ts]
+
+var foge = new SharedArrayBuffer(1024);
+var species = foge[Symbol.species];
+var stringTag = foge[Symbol.toStringTag];
+
+//// [useSharedArrayBuffer6.js]
+var foge = new SharedArrayBuffer(1024);
+var species = foge[Symbol.species];
+var stringTag = foge[Symbol.toStringTag];
diff --git a/tests/baselines/reference/useSharedArrayBuffer6.symbols b/tests/baselines/reference/useSharedArrayBuffer6.symbols
@@ -0,0 +1,20 @@
+=== tests/cases/conformance/es2017/useSharedArrayBuffer6.ts ===
+
+var foge = new SharedArrayBuffer(1024);
+>foge : Symbol(foge, Decl(useSharedArrayBuffer6.ts, 1, 3))
+>SharedArrayBuffer : Symbol(SharedArrayBuffer, Decl(lib.es2017.sharedmemory.d.ts, --, --), Decl(lib.es2017.sharedmemory.d.ts, --, --))
+
+var species = foge[Symbol.species];
+>species : Symbol(species, Decl(useSharedArrayBuffer6.ts, 2, 3))
+>foge : Symbol(foge, Decl(useSharedArrayBuffer6.ts, 1, 3))
+>Symbol.species : Symbol(SymbolConstructor.species, Decl(lib.es2015.symbol.wellknown.d.ts, --, --))
+>Symbol : Symbol(Symbol, Decl(lib.es2015.symbol.wellknown.d.ts, --, --), Decl(lib.es2015.symbol.d.ts, --, --), Decl(lib.es2015.symbol.d.ts, --, --))
+>species : Symbol(SymbolConstructor.species, Decl(lib.es2015.symbol.wellknown.d.ts, --, --))
+
+var stringTag = foge[Symbol.toStringTag];
+>stringTag : Symbol(stringTag, Decl(useSharedArrayBuffer6.ts, 3, 3))
+>foge : Symbol(foge, Decl(useSharedArrayBuffer6.ts, 1, 3))
+>Symbol.toStringTag : Symbol(SymbolConstructor.toStringTag, Decl(lib.es2015.symbol.wellknown.d.ts, --, --))
+>Symbol : Symbol(Symbol, Decl(lib.es2015.symbol.wellknown.d.ts, --, --), Decl(lib.es2015.symbol.d.ts, --, --), Decl(lib.es2015.symbol.d.ts, --, --))
+>toStringTag : Symbol(SymbolConstructor.toStringTag, Decl(lib.es2015.symbol.wellknown.d.ts, --, --))
+
diff --git a/tests/baselines/reference/useSharedArrayBuffer6.types b/tests/baselines/reference/useSharedArrayBuffer6.types
@@ -0,0 +1,24 @@
+=== tests/cases/conformance/es2017/useSharedArrayBuffer6.ts ===
+
+var foge = new SharedArrayBuffer(1024);
+>foge : SharedArrayBuffer
+>new SharedArrayBuffer(1024) : SharedArrayBuffer
+>SharedArrayBuffer : SharedArrayBufferConstructor
+>1024 : number
+
+var species = foge[Symbol.species];
+>species : SharedArrayBuffer
+>foge[Symbol.species] : SharedArrayBuffer
+>foge : SharedArrayBuffer
+>Symbol.species : symbol
+>Symbol : SymbolConstructor
+>species : symbol
+
+var stringTag = foge[Symbol.toStringTag];
+>stringTag : "SharedArrayBuffer"
+>foge[Symbol.toStringTag] : "SharedArrayBuffer"
+>foge : SharedArrayBuffer
+>Symbol.toStringTag : symbol
+>Symbol : SymbolConstructor
+>toStringTag : symbol
+
diff --git a/tests/cases/conformance/es2017/useSharedArrayBuffer1.ts b/tests/cases/conformance/es2017/useSharedArrayBuffer1.ts
@@ -0,0 +1,6 @@
+// @target: es5
+// @lib: es5,es2017.sharedmemory
+
+var foge = new SharedArrayBuffer(1024);
+var bar = foge.slice(1, 10);
+var len = foge.byteLength;
diff --git a/tests/cases/conformance/es2017/useSharedArrayBuffer2.ts b/tests/cases/conformance/es2017/useSharedArrayBuffer2.ts
@@ -0,0 +1,6 @@
+// @target: es5
+// @lib: es5
+
+var foge = new SharedArrayBuffer(1024);
+var bar = foge.slice(1, 10);
+var len = foge.byteLength;