Generator for ProtoBuf (proto3)

.gitignore

@@ -139,3 +139,8 @@ dmypy.json
 
 # PyCharm configuration
 .idea/
+
+# generated output
+out/*
+# namespace configuration for output
+snippets/namespace.txt

README.rst

@@ -138,8 +138,8 @@ Call the generator with the appropriate target:
 .. code-block::
 
     usage: aas-core-codegen [-h] --model_path MODEL_PATH --snippets_dir
-                            SNIPPETS_DIR --output_dir OUTPUT_DIR --target
-                            {csharp,cpp,golang,java,jsonschema,python,typescript,rdf_shacl,xsd,jsonld_context}
+                            SNIPPETS_DIR --output_dir OUTPUT_DIR --target                          
+                            {csharp,cpp,golang,java,jsonschema,python,typescript,rdf_shacl,xsd,jsonld_context,protobuf}
                             [--version]
 
     Generate implementations and schemas based on an AAS meta-model.
@@ -153,7 +153,7 @@ Call the generator with the appropriate target:
                             specific code snippets
       --output_dir OUTPUT_DIR
                             path to the generated code
-      --target {csharp,cpp,golang,java,jsonschema,python,typescript,rdf_shacl,xsd,jsonld_context}
+      --target {csharp,cpp,golang,java,jsonschema,python,typescript,rdf_shacl,xsd,jsonld_context,protobuf}
                             target language or schema
       --version             show the current version and exit
 

aas_core_codegen/cpp/aas_common/__init__.py

@@ -1,4 +1,5 @@
 """Generate C++ code for common functions."""
+
 from aas_core_codegen.cpp.aas_common import _generate
 
 generate_header = _generate.generate_header

aas_core_codegen/cpp/naming.py

@@ -63,7 +63,7 @@ def getter_name(identifier: Identifier) -> Identifier:
     >>> getter_name(Identifier("something_to_URL"))
     'something_to_url'
     """
-    return naming.lower_pascal_case(identifier)
+    return naming.lower_snake_case(identifier)
 
 
 def mutable_getter_name(identifier: Identifier) -> Identifier:
@@ -76,7 +76,7 @@ def mutable_getter_name(identifier: Identifier) -> Identifier:
     >>> mutable_getter_name(Identifier("something_to_URL"))
     'mutable_something_to_url'
     """
-    return naming.lower_pascal_case(Identifier(f"mutable_{identifier}"))
+    return naming.lower_snake_case(Identifier(f"mutable_{identifier}"))
 
 
 def setter_name(identifier: Identifier) -> Identifier:
@@ -89,7 +89,7 @@ def setter_name(identifier: Identifier) -> Identifier:
     >>> setter_name(Identifier("something_to_URL"))
     'set_something_to_url'
     """
-    return naming.lower_pascal_case(Identifier(f"set_{identifier}"))
+    return naming.lower_snake_case(Identifier(f"set_{identifier}"))
 
 
 def private_property_name(identifier: Identifier) -> Identifier:
@@ -102,7 +102,7 @@ def private_property_name(identifier: Identifier) -> Identifier:
     >>> private_property_name(Identifier("something_to_URL"))
     'something_to_url_'
     """
-    return Identifier(f"{naming.lower_pascal_case(identifier)}_")
+    return Identifier(f"{naming.lower_snake_case(identifier)}_")
 
 
 def method_name(identifier: Identifier) -> Identifier:
@@ -141,7 +141,7 @@ def argument_name(identifier: Identifier) -> Identifier:
     >>> argument_name(Identifier("something_to_URL"))
     'something_to_url'
     """
-    return naming.lower_pascal_case(identifier)
+    return naming.lower_snake_case(identifier)
 
 
 def variable_name(identifier: Identifier) -> Identifier:
@@ -154,7 +154,7 @@ def variable_name(identifier: Identifier) -> Identifier:
     >>> variable_name(Identifier("something_to_URL"))
     'something_to_url'
     """
-    return naming.lower_pascal_case(identifier)
+    return naming.lower_snake_case(identifier)
 
 
 def constant_name(identifier: Identifier) -> Identifier:

aas_core_codegen/intermediate/_translate.py

@@ -1044,9 +1044,11 @@ def _to_arguments(parsed: Sequence[parse.Argument]) -> List[Argument]:
         Argument(
             name=parsed_arg.name,
             type_annotation=_to_type_annotation(parsed_arg.type_annotation),
-            default=_DefaultPlaceholder(parsed=parsed_arg.default)  # type: ignore
-            if parsed_arg.default is not None
-            else None,
+            default=(
+                _DefaultPlaceholder(parsed=parsed_arg.default)  # type: ignore
+                if parsed_arg.default is not None
+                else None
+            ),
             parsed=parsed_arg,
         )
         for parsed_arg in parsed
@@ -3446,9 +3448,11 @@ def _second_pass_to_stack_constructors_in_place(
                 if ancestor is None:
                     errors.append(
                         Error(
-                            cls.constructor.parsed.node
-                            if cls.constructor.parsed is not None
-                            else cls.parsed.node,
+                            (
+                                cls.constructor.parsed.node
+                                if cls.constructor.parsed is not None
+                                else cls.parsed.node
+                            ),
                             f"In the constructor of the class {cls.name!r} "
                             f"the super-constructor for "
                             f"the class {statement.super_name!r} is invoked, "
@@ -3461,9 +3465,11 @@ def _second_pass_to_stack_constructors_in_place(
                 if id(ancestor) not in cls.inheritance_id_set:
                     errors.append(
                         Error(
-                            cls.constructor.parsed.node
-                            if cls.constructor.parsed is not None
-                            else cls.parsed.node,
+                            (
+                                cls.constructor.parsed.node
+                                if cls.constructor.parsed is not None
+                                else cls.parsed.node
+                            ),
                             f"In the constructor of the class {cls.name!r} "
                             f"the super-constructor for "
                             f"the class {statement.super_name!r} is invoked, "

aas_core_codegen/main.py

@@ -17,6 +17,7 @@
 import aas_core_codegen.typescript.main as typescript_main
 import aas_core_codegen.xsd.main as xsd_main
 import aas_core_codegen.jsonld.main as jsonld_main
+import aas_core_codegen.protobuf.main as protobuf_main
 from aas_core_codegen import run, specific_implementations
 from aas_core_codegen.common import LinenoColumner, assert_never
 
@@ -36,6 +37,7 @@ class Target(enum.Enum):
     RDF_SHACL = "rdf_shacl"
     XSD = "xsd"
     JSONLD_CONTEXT = "jsonld_context"
+    PROTOBUF = "protobuf"
 
 
 class Parameters:
@@ -164,6 +166,9 @@ def execute(params: Parameters, stdout: TextIO, stderr: TextIO) -> int:
     elif params.target is Target.JSONLD_CONTEXT:
         return jsonld_main.execute(context=run_context, stdout=stdout, stderr=stderr)
 
+    elif params.target is Target.PROTOBUF:
+        return protobuf_main.execute(run_context, stdout=stdout, stderr=stderr)
+
     else:
         assert_never(params.target)
 

aas_core_codegen/naming.py

@@ -6,7 +6,7 @@
 from aas_core_codegen.common import Identifier
 
 
-def lower_pascal_case(identifier: Identifier) -> Identifier:
+def lower_snake_case(identifier: Identifier) -> Identifier:
     """Convert the identifier to a ``pascal_case``."""
     parts = identifier.split("_")
 
@@ -15,7 +15,7 @@ def lower_pascal_case(identifier: Identifier) -> Identifier:
     return Identifier("_".join(part.lower() for part in parts))
 
 
-def upper_pascal_case(identifier: Identifier) -> Identifier:
+def upper_snake_case(identifier: Identifier) -> Identifier:
     """Convert the identifier to a ``PASCAL_CASE``."""
     parts = identifier.split("_")
 

aas_core_codegen/protobuf/__init__.py

@@ -0,0 +1 @@
+"""Generate ProtoBuf files based on the intermediate meta-model."""