From cdd1a2bdc09105e9be0947c8c7990b1a7c737611 Mon Sep 17 00:00:00 2001
From: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>
Date: Tue, 7 Jun 2022 22:41:27 -0700
Subject: Implement `hashCode`

---
 src/javascript/jsc/bindings/ZigGlobalObject.cpp | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/javascript/jsc/bindings/ZigGlobalObject.cpp b/src/javascript/jsc/bindings/ZigGlobalObject.cpp
index 7d745b896..3282370bd 100644
--- a/src/javascript/jsc/bindings/ZigGlobalObject.cpp
+++ b/src/javascript/jsc/bindings/ZigGlobalObject.cpp
@@ -137,7 +137,6 @@ using JSBuffer = WebCore::JSBuffer;
 
 #include "ReadableStream.h"
 // #include <iostream>
-
 static bool has_loaded_jsc = false;
 
 extern "C" void JSCInitialize()
@@ -787,6 +786,21 @@ static JSC_DEFINE_HOST_FUNCTION(functionImportMeta__resolve,
     }
 }
 
+static JSC_DECLARE_HOST_FUNCTION(functionHashCode);
+
+static JSC_DEFINE_HOST_FUNCTION(functionHashCode,
+    (JSC::JSGlobalObject * globalObject, JSC::CallFrame* callFrame))
+{
+    JSC::JSValue stringToHash = callFrame->argument(0);
+    JSC::JSString* str = stringToHash.toStringOrNull(globalObject);
+    if (!str) {
+        return JSC::JSValue::encode(jsNumber(0));
+    }
+
+    auto view = str->value(globalObject);
+    return JSC::JSValue::encode(jsNumber(view.hash()));
+}
+
 static JSC_DECLARE_HOST_FUNCTION(functionImportMeta__resolveSync);
 
 static JSC_DEFINE_HOST_FUNCTION(functionImportMeta__resolveSync,
@@ -1764,10 +1778,15 @@ void GlobalObject::installAPIGlobals(JSClassRef* globals, int count, JSC::VM& vm
         }
 
         {
-            JSC::Identifier identifier = JSC::Identifier::fromString(vm, "readableStreamToArray"_s);
             object->putDirectBuiltinFunction(vm, this, builtinNames.readableStreamToArrayPublicName(), readableStreamReadableStreamToArrayCodeGenerator(vm), PropertyAttribute::Builtin | PropertyAttribute::DontDelete | PropertyAttribute::ReadOnly);
         }
 
+        {
+            JSC::Identifier identifier = JSC::Identifier::fromString(vm, "hashCode"_s);
+            object->putDirectNativeFunction(vm, this, identifier, 1, functionHashCode, NoIntrinsic,
+                JSC::PropertyAttribute::Function | JSC::PropertyAttribute::DontDelete | 0);
+        }
+
         extraStaticGlobals.uncheckedAppend(
             GlobalPropertyInfo { JSC::Identifier::fromString(vm, jsClass->className()),
                 JSC::JSValue(object), JSC::PropertyAttribute::DontDelete | 0 });
-- 
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