Fix uint properties

gtkblueprinttool/ast.py

@@ -377,6 +377,14 @@ class LiteralValue(Value):
             except:
                 raise CompileError(f"Cannot convert {self.tokens['value']} to integer")
 
+        elif isinstance(type, gir.UIntType):
+            try:
+                int(self.tokens["value"])
+                if int(self.tokens["value"]) < 0:
+                    raise Exception()
+            except:
+                raise CompileError(f"Cannot convert {self.tokens['value']} to unsigned integer")
+
         elif isinstance(type, gir.FloatType):
             try:
                 float(self.tokens["value"])

tests/sample_errors/uint.blp

@@ -0,0 +1,5 @@
+using Gtk 4.0;
+
+FlowBox {
+  column-spacing: -2;
+}

tests/sample_errors/uint.err

@@ -0,0 +1 @@
+4,19,2,Cannot convert -2 to unsigned integer

tests/samples/uint.blp

@@ -0,0 +1,5 @@
+using Gtk 4.0;
+
+FlowBox {
+  column-spacing: 2;
+}

tests/samples/uint.ui

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <requires lib="gtk" version="4.0"/>
+  <object class="GtkFlowBox">
+    <property name="column-spacing">2</property>
+  </object>
+</interface>

tests/test_samples.py

@@ -110,6 +110,7 @@ class TestSamples(unittest.TestCase):
         self.assert_sample("style")
         self.assert_sample("template")
         self.assert_sample("translated")
+        self.assert_sample("uint")
         self.assert_sample("using")
 
 
@@ -136,5 +137,6 @@ class TestSamples(unittest.TestCase):
         self.assert_sample_error("size_group_obj_dne")
         self.assert_sample_error("styles_in_non_widget")
         self.assert_sample_error("two_templates")
+        self.assert_sample_error("uint")
         self.assert_sample_error("using_invalid_namespace")
         self.assert_sample_error("widgets_in_non_size_group")