Make classRegistry use hashes instead of strings as keys for faster lookup

Up version to 0.7.16

godot/internal/godotinternaltypes.nim

@@ -66,6 +66,8 @@ type
   GodotString* {.byref.} = object
     data: array[sizeof(int), byte]
 
+  cwchar_t* {.importc: "wchar_t", nodecl.} = object
+
   GodotCharString* {.byref.} = object
     data: array[sizeof(int), byte]
 
@@ -305,3 +307,6 @@ type
 
   GodotClassConstructor* = proc (): ptr GodotObject {.
     noconv, gcsafe, locks: 0, raises: [], tags: [].}
+
+template offset*[T](p: ptr T, offset: int): ptr T =
+  cast[ptr T](cast[ByteAddress](p) +% (offset * sizeof(T)))

godot/internal/godotpoolarrays.nim

@@ -3,9 +3,6 @@
 import godotinternaltypes, gdnativeapi
 import core.godotcoretypes
 
-proc offset[T](p: ptr T, offset: int): ptr T {.inline.} =
-  cast[ptr T](cast[ByteAddress](p) +% (offset * sizeof(T)))
-
 template genPoolArrayAPI(ArrayT, initIdent, DataT,
                          newProc, newCopyProc, newWithArrayProc, appendProc,
                          appendArrayProc, insertProc, invertProc, pushBackProc,

godot/internal/godotstrings.nim

@@ -22,6 +22,12 @@ proc `&`*(self, b: GodotString): GodotString {.inline.} =
 proc deinit*(self: var GodotString) {.inline.} =
   getGDNativeAPI().stringDestroy(self)
 
+proc len*(self: GodotString): cint {.inline.} =
+  getGDNativeAPI().stringLength(self)
+
+proc dataPtr*(self: GodotString): ptr cwchar_t {.inline.} =
+  getGDNativeAPI().stringWideStr(self)
+
 proc `$`*(self: GodotString): string =
   ## Converts the ``GodotString`` into Nim string
   var charStr = getGDNativeAPI().stringUtf8(self)