LibJS: Re-implement console functions as wrappers around Console methods

Console methods are now Value(void) functions.

JavaScript functions in the JavaScript ConsoleObject are now implemented
as simple wrappers around Console methods.

This will make it possible for LibJS users to easily override the
default behaviour of JS console functions (even their return value!)
once we add a way to override Console behaviour.

Libraries/LibJS/Console.cpp

@@ -37,40 +37,46 @@ Console::Console(Interpreter& interpreter)
 {
 }
 
-void Console::debug(String text)
+Value Console::debug()
 {
-    dbg() << "debug: " << text;
+    dbg() << "debug: " << m_interpreter.join_arguments();
+    return js_undefined();
 }
 
-void Console::error(String text)
+Value Console::error()
 {
-    dbg() << "error: " << text;
+    dbg() << "error: " << m_interpreter.join_arguments();
+    return js_undefined();
 }
 
-void Console::info(String text)
+Value Console::info()
 {
-    dbg() << "info: " << text;
+    dbg() << "info: " << m_interpreter.join_arguments();
+    return js_undefined();
 }
 
-void Console::log(String text)
+Value Console::log()
 {
-    dbg() << "log: " << text;
+    dbg() << "log: " << m_interpreter.join_arguments();
+    return js_undefined();
 }
 
-void Console::warn(String text)
+Value Console::warn()
 {
-    dbg() << "warn: " << text;
+    dbg() << "warn: " << m_interpreter.join_arguments();
+    return js_undefined();
 }
 
-void Console::clear()
+Value Console::clear()
 {
     dbg() << "clear:";
+    return js_undefined();
 }
 
-void Console::trace(String title)
+Value Console::trace()
 {
     StringBuilder message_text;
-    message_text.append(title);
+    message_text.append(m_interpreter.join_arguments());
 
     auto call_stack = m_interpreter.call_stack();
     // -2 to skip the console.trace() call frame
@@ -83,31 +89,39 @@ void Console::trace(String title)
     }
 
     dbg() << "log: " << message_text.build();
+    return js_undefined();
 }
 
-void Console::count(String label)
+Value Console::count()
 {
+    auto label = m_interpreter.argument_count() ? m_interpreter.argument(0).to_string() : "default";
+
     auto counter_value = m_counters.get(label);
     if (!counter_value.has_value()) {
         dbg() << "log: " << label << ": 1";
         m_counters.set(label, 1);
-        return;
+        return js_undefined();
     }
 
     auto new_counter_value = counter_value.value() + 1;
     dbg() << "log: " << label << ": " << new_counter_value;
     m_counters.set(label, new_counter_value);
+
+    return js_undefined();
 }
 
-void Console::count_reset(String label)
+Value Console::count_reset()
 {
+    auto label = m_interpreter.argument_count() ? m_interpreter.argument(0).to_string() : "default";
+
     if (m_counters.contains(label)) {
         dbg() << "warn: \"" << label << "\" doesn't have a count";
-        return;
+        return js_undefined();
     }
 
     m_counters.remove(label);
     dbg() << "log: " << label << ": 0";
+    return js_undefined();
 }
 
 }

Libraries/LibJS/Console.h

@@ -44,18 +44,18 @@ public:
 
     HashMap<String, unsigned>& counters() { return m_counters; }
 
-    void debug(String text);
-    void error(String text);
-    void info(String text);
-    void log(String text);
-    void warn(String text);
+    Value debug();
+    Value error();
+    Value info();
+    Value log();
+    Value warn();
 
-    void clear();
+    Value clear();
 
-    void trace(String title);
+    Value trace();
 
-    void count(String label = "default");
-    void count_reset(String label = "default");
+    Value count();
+    Value count_reset();
 
 private:
     Interpreter& m_interpreter;

Libraries/LibJS/Runtime/ConsoleObject.cpp

@@ -28,7 +28,6 @@
 
 #include <AK/FlyString.h>
 #include <AK/Function.h>
-#include <AK/StringBuilder.h>
 #include <LibJS/Console.h>
 #include <LibJS/Interpreter.h>
 #include <LibJS/Runtime/ConsoleObject.h>
@@ -56,62 +55,47 @@ ConsoleObject::~ConsoleObject()
 
 Value ConsoleObject::log(Interpreter& interpreter)
 {
-    interpreter.console().log(interpreter.join_arguments());
-    return js_undefined();
+    return interpreter.console().log();
 }
 
 Value ConsoleObject::debug(Interpreter& interpreter)
 {
-    interpreter.console().debug(interpreter.join_arguments());
-    return js_undefined();
+    return interpreter.console().debug();
 }
 
 Value ConsoleObject::info(Interpreter& interpreter)
 {
-    interpreter.console().info(interpreter.join_arguments());
-    return js_undefined();
+    return interpreter.console().info();
 }
 
 Value ConsoleObject::warn(Interpreter& interpreter)
 {
-    interpreter.console().warn(interpreter.join_arguments());
-    return js_undefined();
+    return interpreter.console().warn();
 }
 
 Value ConsoleObject::error(Interpreter& interpreter)
 {
-    interpreter.console().error(interpreter.join_arguments());
-    return js_undefined();
+    return interpreter.console().error();
 }
 
 Value ConsoleObject::trace(Interpreter& interpreter)
 {
-    interpreter.console().trace(interpreter.join_arguments());
-    return js_undefined();
+    return interpreter.console().trace();
 }
 
 Value ConsoleObject::count(Interpreter& interpreter)
 {
-    if (interpreter.argument_count())
-        interpreter.console().count(interpreter.argument(0).to_string());
-    else
-        interpreter.console().count();
-    return js_undefined();
+    return interpreter.console().count();
 }
 
 Value ConsoleObject::count_reset(Interpreter& interpreter)
 {
-    if (interpreter.argument_count())
-        interpreter.console().count_reset(interpreter.argument(0).to_string());
-    else
-        interpreter.console().count_reset();
-    return js_undefined();
+    return interpreter.console().count_reset();
 }
 
 Value ConsoleObject::clear(Interpreter& interpreter)
 {
-    interpreter.console().clear();
-    return js_undefined();
+    return interpreter.console().clear();
 }
 
 }