Implement support int64 and uint64 field types (#147)

* Implement support `int64` and `uint64` field types

* Refactor `get_destination_settings_if_any` to resolve typing errors

Author: tmdvs

pyproject.toml

@@ -21,8 +21,8 @@ build-backend = "setuptools.build_meta"
 enabled = true
 
 [project.optional-dependencies]
-fast = ["fig-kiwi==0.1.1"]
-dev = ["black==24.2.0", "mypy==0.991", "pytest==8.2.0", "fig-kiwi==0.1.1"]
+fast = ["fig-kiwi==0.1.2"]
+dev = ["black==24.2.0", "mypy==0.991", "pytest==8.2.0", "fig-kiwi==0.1.2"]
 
 [tool.black]
 line-length = 99

src/converter/prototype.py

@@ -142,29 +142,30 @@ def get_destination_settings_if_any(
     overlay_settings = None
     destination: Optional[str]
 
-    match action["connectionType"], action.get("transitionNodeID", None):
-        case "BACK", _:
-            destination = "back"
-        case "INTERNAL_NODE", None:
+    connection_type = action.get("connectionType")
+    transition_node_id = action.get("transitionNodeID", None)
+
+    if connection_type == "BACK":
+        destination = "back"
+    elif connection_type == "INTERNAL_NODE" and transition_node_id is None:
+        destination = None
+    elif connection_type == "INTERNAL_NODE" and transition_node_id is not None:
+        if utils.is_invalid_ref(transition_node_id):
             destination = None
-        case "INTERNAL_NODE", transition_node_id:
-            if utils.is_invalid_ref(transition_node_id):
-                destination = None
-            else:
-                destination = utils.gen_object_id(transition_node_id)
-                transition_node = context.fig_node(transition_node_id)
-
-                if "overlayBackgroundInteraction" in transition_node:
-                    offset = action.get("overlayRelativePosition", {"x": 0, "y": 0})
-
-                    overlay_settings = FlowOverlaySettings.Positioned(
-                        transition_node.get("overlayPositionType", "CENTER"),
-                        Point.from_dict(offset),
-                    )
-
-        case "NONE", _:
-            destination = None
-        case _:
-            raise Fig2SketchWarning("PRT004")
+        else:
+            destination = utils.gen_object_id(transition_node_id)
+            transition_node = context.fig_node(transition_node_id)
+
+            if "overlayBackgroundInteraction" in transition_node:
+                offset = action.get("overlayRelativePosition", {"x": 0, "y": 0})
+
+                overlay_settings = FlowOverlaySettings.Positioned(
+                    transition_node.get("overlayPositionType", "CENTER"),
+                    Point.from_dict(offset),
+                )
+    elif connection_type == "NONE":
+        destination = None
+    else:
+        raise Fig2SketchWarning("PRT004")
 
     return destination, overlay_settings

src/figformat/kiwi.py

@@ -29,6 +29,21 @@ def uint(self):
 
         return uint
 
+    def uint64(self):
+        uint = 0
+        shift = 0
+        for shift in range(0, 64, 7):
+            b = self.byte()
+            uint |= (b & 127) << shift
+            if b < 128:
+                break
+
+        return uint
+
+    def int64(self):
+        v = self.uint64()
+        return ~(v >> 1) if v & 1 else v >> 1
+
     def float(self):
         b = self.byte()
         if b == 0:
@@ -82,7 +97,7 @@ def _decode_field(kw):
 
 
 class KiwiDecoder:
-    TYPES = ["bool", "byte", "int", "uint", "float", "string"]
+    TYPES = ["bool", "byte", "int", "uint", "float", "string", "int64", "uint64"]
     KINDS = ["ENUM", "STRUCT", "MESSAGE"]
 
     def __init__(self, schema, type_converters):