Support match step

Author: iddan

generate/generate.py

@@ -66,6 +66,8 @@ def range_to_type(_range: dict) -> ast.expr:
                 )
             ),
         )
+    if _id == "rdfg:Graph":
+        return ast.Name("GraphPattern")
     if _id == "rdf:JSON":
         return ast.Subscript(
             value=ast.Attribute(value=ast.Name(id="typing"), attr="Dict"),

generate/header.py

@@ -17,6 +17,10 @@
 CONTEXT = {"linkedql": "http://cayley.io/linkedql#"}
 
 
+Document = typing.Dict[str, typing.Any]
+GraphPattern = typing.Union[typing.List[Document], Document]
+
+
 class Operator:
     pass