Emit deprecation warnings

blueprintcompiler/language/gobject_property.py

@@ -41,9 +41,11 @@ class Property(AstNode):
         return self.parent.parent.gir_class
 
     @property
-    def gir_property(self):
+    def gir_property(self) -> T.Optional[gir.Property]:
         if self.gir_class is not None and not isinstance(self.gir_class, ExternType):
             return self.gir_class.properties.get(self.tokens["name"])
+        else:
+            return None
 
     @validate()
     def binding_valid(self):
@@ -91,6 +93,17 @@ class Property(AstNode):
             check=lambda child: child.tokens["name"] == self.tokens["name"],
         )
 
+    @validate("name")
+    def deprecated(self) -> None:
+        if self.gir_property is not None and self.gir_property.deprecated:
+            hints = []
+            if self.gir_property.deprecated_doc:
+                hints.append(self.gir_property.deprecated_doc)
+            raise CompileWarning(
+                f"{self.gir_property.signature} is deprecated",
+                hints=hints,
+            )
+
     @docs("name")
     def property_docs(self):
         if self.gir_property is not None:

blueprintcompiler/language/gobject_signal.py

@@ -95,9 +95,11 @@ class Signal(AstNode):
         return any(x.flag == "after" for x in self.flags)
 
     @property
-    def gir_signal(self):
+    def gir_signal(self) -> T.Optional[gir.Signal]:
         if self.gir_class is not None and not isinstance(self.gir_class, ExternType):
             return self.gir_class.signals.get(self.tokens["name"])
+        else:
+            return None
 
     @property
     def gir_class(self):
@@ -134,6 +136,17 @@ class Signal(AstNode):
         if self.context[ScopeCtx].objects.get(object_id) is None:
             raise CompileError(f"Could not find object with ID '{object_id}'")
 
+    @validate("name")
+    def deprecated(self) -> None:
+        if self.gir_signal is not None and self.gir_signal.deprecated:
+            hints = []
+            if self.gir_signal.deprecated_doc:
+                hints.append(self.gir_signal.deprecated_doc)
+            raise CompileWarning(
+                f"{self.gir_signal.signature} is deprecated",
+                hints=hints,
+            )
+
     @docs("name")
     def signal_docs(self):
         if self.gir_signal is not None:

blueprintcompiler/language/types.py

@@ -57,6 +57,17 @@ class TypeName(AstNode):
         if not self.tokens["extern"]:
             self.root.gir.validate_ns(self.tokens["namespace"])
 
+    @validate()
+    def deprecated(self) -> None:
+        if self.gir_type and self.gir_type.deprecated:
+            hints = []
+            if self.gir_type.deprecated_doc:
+                hints.append(self.gir_type.deprecated_doc)
+            raise CompileWarning(
+                f"{self.gir_type.full_name} is deprecated",
+                hints=hints,
+            )
+
     @property
     def gir_ns(self):
         if not self.tokens["extern"]: