Adds readBinaryFile to jsc

jscbin.diff

Index: jsc.cpp
===================================================================
--- jsc.cpp	(revision 177145)
+++ jsc.cpp	(working copy)
@@ -34,6 +34,7 @@
 #include "Interpreter.h"
 #include "JSArray.h"
 #include "JSArrayBuffer.h"
+#include "JSArrayBufferConstructor.h"
 #include "JSCInlines.h"
 #include "JSFunction.h"
 #include "JSLock.h"
@@ -461,6 +462,7 @@
 static EncodedJSValue JSC_HOST_CALL functionRun(ExecState*);
 static EncodedJSValue JSC_HOST_CALL functionLoad(ExecState*);
 static EncodedJSValue JSC_HOST_CALL functionReadFile(ExecState*);
+static EncodedJSValue JSC_HOST_CALL functionReadBinaryFile(ExecState*);
 static EncodedJSValue JSC_HOST_CALL functionCheckSyntax(ExecState*);
 static EncodedJSValue JSC_HOST_CALL functionReadline(ExecState*);
 static EncodedJSValue JSC_HOST_CALL functionPreciseTime(ExecState*);
@@ -598,6 +600,7 @@
         addFunction(vm, "run", functionRun, 1);
         addFunction(vm, "load", functionLoad, 1);
         addFunction(vm, "readFile", functionReadFile, 1);
+        addFunction(vm, "readBinaryFile", functionReadBinaryFile, 1);
         addFunction(vm, "checkSyntax", functionCheckSyntax, 1);
         addFunction(vm, "jscStack", functionJSCStack, 1);
         addFunction(vm, "readline", functionReadline, 0);
@@ -929,6 +932,26 @@
     return JSValue::encode(jsString(exec, stringFromUTF(script.data())));
 }
 
+EncodedJSValue JSC_HOST_CALL functionReadBinaryFile(ExecState* exec)
+{
+    String fileName = exec->argument(0).toString(exec)->value(exec);
+    Vector<char> script;
+    if (!fillBufferWithContentsOfFile(fileName, script))
+        return JSValue::encode(exec->vm().throwException(exec, createError(exec, ASCIILiteral("Could not open file."))));
+
+    JSArrayBufferConstructor* constructor =
+        jsCast<JSArrayBufferConstructor*>(exec->callee());
+
+    RefPtr<ArrayBuffer> buffer = ArrayBuffer::create(script.data(), script.size());
+    if (!buffer)
+        return JSValue::encode(exec->vm().throwException(exec, createError(exec, ASCIILiteral("Out of memory"))));
+    
+    JSArrayBuffer* result = JSArrayBuffer::create(
+        exec->vm(), constructor->globalObject()->arrayBufferStructure(), buffer);
+    
+    return JSValue::encode(result);
+}
+
 EncodedJSValue JSC_HOST_CALL functionCheckSyntax(ExecState* exec)
 {
     String fileName = exec->argument(0).toString(exec)->value(exec);