Convert lime.tools.Architecture to enum abstract. (#1754)

* Convert `lime.tools.Architecture` to `enum abstract`.

This improves compatibility with `hxp.HostArchitecture` and provides a more user-friendly API than `try { Type.createEnum() }`.

* Add category functions to `Architecture`.

* Fix errors related to `Architecture`'s new type.

* Standardize formatting.

* Re-implement `Architecture.match()` for backwards compatibility.

* Add `Architecture` constructor for clarity.

src/lime/tools/Architecture.hx

@@ -1,14 +1,104 @@
 package lime.tools;
 
-enum Architecture
+import haxe.macro.Expr;
+import hxp.HostArchitecture;
+
+#if (haxe_ver >= 4.0) enum #else @:enum #end abstract Architecture(String) to String
+
 {
-	ARMV5;
-	ARMV6;
-	ARMV7;
-	ARMV7S;
-	ARM64;
-	X86;
-	X64;
-	MIPS;
-	MIPSEL;
+	var ARMV5 = "ARMV5";
+	var ARMV6 = "ARMV6";
+	var ARMV7 = "ARMV7";
+	var ARMV7S = "ARMV7S";
+	var ARM64 = "ARM64";
+	var X86 = "X86";
+	var X64 = "X64";
+	var MIPS = "MIPS";
+	var MIPSEL = "MIPSEL";
+
+	public static function exists(architecture:String):Bool
+	{
+		switch (architecture)
+		{
+			case ARMV5, ARMV6, ARMV7, ARMV7S, ARM64, X86, X64, MIPS, MIPSEL:
+				return true;
+			default:
+				return false;
+		}
+	}
+
+	@:from private static function fromHostArchitecture(hostArchitecture:HostArchitecture):Architecture
+	{
+		if (hostArchitecture == HostArchitecture.ARMV6)
+		{
+			return ARMV6;
+		}
+		else if (hostArchitecture == HostArchitecture.ARMV7)
+		{
+			return ARMV7;
+		}
+		else if (hostArchitecture == HostArchitecture.ARM64)
+		{
+			return ARM64;
+		}
+		else if (hostArchitecture == HostArchitecture.X86)
+		{
+			return X86;
+		}
+		else /* if (hostArchitecture == HostArchitecture.X64) */
+		{
+			return X64;
+		}
+	}
+
+	@:from private static function fromString(string:String):Architecture
+	{
+		if (exists(string))
+		{
+			return cast string;
+		}
+		else
+		{
+			return null;
+		}
+	}
+
+	/**
+		Returns the given `Architecture` if available, or `null` otherwise.
+	**/
+	public inline function new(name:String)
+	{
+		this = fromString(name.toUpperCase());
+	}
+
+	public inline function is64():Bool
+	{
+		return this == ARM64 || this == X64;
+	}
+
+	public inline function isARM():Bool
+	{
+		return this.indexOf("ARM") == 0;
+	}
+
+	public inline function isMIPS():Bool
+	{
+		return this == MIPS || this == MIPSEL;
+	}
+
+	public inline function isX():Bool
+	{
+		return this == X86 || this == X64;
+	}
+
+	@:noCompletion public macro function match(self:Expr, expr:Expr):Expr
+	{
+		return macro switch ($self)
+		{
+			case $expr:
+				true;
+			default:
+				false;
+		};
+	}
 }

src/lime/tools/ProjectXMLParser.hx

@@ -1160,21 +1160,21 @@ class ProjectXMLParser extends HXProject
 				case "architecture":
 					if (element.has.name)
 					{
-						var name = substitute(element.att.name);
+						var name = new Architecture(substitute(element.att.name));
 
-						if (Reflect.hasField(Architecture, name.toUpperCase()))
+						if (name != null)
 						{
-							ArrayTools.addUnique(architectures, Reflect.field(Architecture, name.toUpperCase()));
+							ArrayTools.addUnique(architectures, name);
 						}
 					}
 
 					if (element.has.exclude)
 					{
-						var exclude = substitute(element.att.exclude);
+						var exclude = new Architecture(substitute(element.att.exclude));
 
-						if (Reflect.hasField(Architecture, exclude.toUpperCase()))
+						if (exclude != null)
 						{
-							ArrayTools.addUnique(excludeArchitectures, Reflect.field(Architecture, exclude.toUpperCase()));
+							ArrayTools.addUnique(excludeArchitectures, exclude);
 						}
 					}
 

tools/CommandLineTools.hx

@@ -2234,17 +2234,12 @@ class CommandLineTools
 				{
 					if (argument.substr(0, 4) == "-arm")
 					{
-						try
-						{
-							var name = argument.substr(1).toUpperCase();
-							var value = Type.createEnum(Architecture, name);
+						var value = new Architecture(argument.substr(1));
 
-							if (value != null)
-							{
-								overrides.architectures.push(value);
-							}
+						if (value != null)
+						{
+							overrides.architectures.push(value);
 						}
-						catch (e:Dynamic) {}
 					}
 					else if (argument == "-64")
 					{

tools/platforms/MacPlatform.hx

@@ -112,10 +112,10 @@ class MacPlatform extends PlatformTarget
 			project.architectures.remove(excludeArchitecture);
 		}
 
-		targetArchitecture = Type.createEnum(Architecture, Type.enumConstructor(System.hostArchitecture));
+		targetArchitecture = System.hostArchitecture;
 		for (architecture in project.architectures)
 		{
-			if (architecture.match(X86 | X64 | ARMV6 | ARMV7 | ARM64))
+			if (architecture.isARM() || architecture.isX())
 			{
 				targetArchitecture = architecture;
 				break;