From dc9b1226ac8b5ee2305ab849b3dbdaa0627fc135 Mon Sep 17 00:00:00 2001
From: Linus Groh <mail@linusgroh.de>
Date: Mon, 30 Mar 2020 18:32:00 +0100
Subject: [PATCH] LibJS: Implement Date.prototype.toString()

---
 Libraries/LibJS/Runtime/DatePrototype.cpp | 11 +++++++++++
 Libraries/LibJS/Runtime/DatePrototype.h   |  1 +
 2 files changed, 12 insertions(+)

diff --git a/Libraries/LibJS/Runtime/DatePrototype.cpp b/Libraries/LibJS/Runtime/DatePrototype.cpp
index 9be2217c96..0bd6e260ed 100644
--- a/Libraries/LibJS/Runtime/DatePrototype.cpp
+++ b/Libraries/LibJS/Runtime/DatePrototype.cpp
@@ -58,6 +58,7 @@ DatePrototype::DatePrototype()
     put_native_function("getMonth", get_month);
     put_native_function("getSeconds", get_seconds);
     put_native_function("getTime", get_time);
+    put_native_function("toString", to_string);
 }
 
 DatePrototype::~DatePrototype()
@@ -146,4 +147,14 @@ Value DatePrototype::get_time(Interpreter& interpreter)
     return Value(static_cast<double>(seconds * 1000 + milliseconds));
 }
 
+Value DatePrototype::to_string(Interpreter& interpreter)
+{
+    auto* this_object = this_date_from_interpreter(interpreter);
+    if (!this_object)
+        return {};
+    // FIXME: Deal with timezones once SerenityOS has a working tzset(3)
+    auto string = this_object->datetime().to_string("%a %b %d %Y %T GMT+0000 (UTC)");
+    return js_string(interpreter.heap(), move(string));
+}
+
 }
diff --git a/Libraries/LibJS/Runtime/DatePrototype.h b/Libraries/LibJS/Runtime/DatePrototype.h
index 9ed93a092c..69205f2802 100644
--- a/Libraries/LibJS/Runtime/DatePrototype.h
+++ b/Libraries/LibJS/Runtime/DatePrototype.h
@@ -47,6 +47,7 @@ private:
     static Value get_month(Interpreter&);
     static Value get_seconds(Interpreter&);
     static Value get_time(Interpreter&);
+    static Value to_string(Interpreter&);
 };
 
 }