3.2.0 - Some config and other improvements

.github/workflows/python-package.yml

@@ -77,7 +77,7 @@ jobs:
 
       - run: |
           mk python-release owner=vkottler \
-                            repo=ifgen version=3.1.7
+                            repo=ifgen version=3.2.0
         if: |
           matrix.python-version == '3.11'
           && matrix.system == 'ubuntu-latest'

README.md

@@ -2,11 +2,11 @@
     =====================================
     generator=datazen
     version=3.1.4
-    hash=d3a7ef970e2a79e369d20b7074001b70
+    hash=d2c1e9d24480cbe7d72337b49a9dc366
     =====================================
 -->
 
-# ifgen ([3.1.7](https://pypi.org/project/ifgen/))
+# ifgen ([3.2.0](https://pypi.org/project/ifgen/))
 
 [![python](https://img.shields.io/pypi/pyversions/ifgen.svg)](https://pypi.org/project/ifgen/)
 ![Build Status](https://github.com/vkottler/ifgen/workflows/Python%20Package/badge.svg)

ifgen/__init__.py

@@ -1,7 +1,7 @@
 # =====================================
 # generator=datazen
 # version=3.1.4
-# hash=8dba39fd4ab323a71ee884c236534c9f
+# hash=7e93d7f1d0e747a4ad065db36864eb77
 # =====================================
 
 """
@@ -10,4 +10,4 @@
 
 DESCRIPTION = "An interface generator for distributed computing."
 PKG_NAME = "ifgen"
-VERSION = "3.1.7"
+VERSION = "3.2.0"

ifgen/commands/svd.py

@@ -38,11 +38,16 @@ def svd_cmd(args: _Namespace) -> int:
     enums.PRUNE_ENUMS = enable_pruning
     base.PRUNE_STRUCTS = enable_pruning
 
-    SvdProcessingTask.svd(path).generate_configs(args.output)
+    SvdProcessingTask.svd(path, args.min_enum_width).generate_configs(
+        args.output
+    )
 
     return 0
 
 
+DEFAULT_MIN_ENUM_WIDTH = 2
+
+
 def add_svd_cmd(parser: _ArgumentParser) -> _CommandFunction:
     """Add svd-command arguments to its parser."""
 
@@ -54,6 +59,17 @@ def add_svd_cmd(parser: _ArgumentParser) -> _CommandFunction:
         help="output directory for configuration files",
     )
 
+    parser.add_argument(
+        "-m",
+        "--min-enum-width",
+        type=int,
+        default=DEFAULT_MIN_ENUM_WIDTH,
+        help=(
+            "minimum number of enumeration elements to warrant "
+            "generating an enumeration definition (default: %(default)s)"
+        ),
+    )
+
     parser.add_argument(
         "svd_file", type=str, help="path/uri to a CMSIS-SVD file"
     )

ifgen/config/__init__.py

@@ -2,11 +2,15 @@
 A module implementing a configuration interface for the package.
 """
 
+# built-in
+from typing import Any
+
 # third-party
 from vcorelib.dict import merge
 from vcorelib.dict.codec import BasicDictCodec as _BasicDictCodec
 from vcorelib.io import ARBITER as _ARBITER
 from vcorelib.io import DEFAULT_INCLUDES_KEY
+from vcorelib.io.types import JsonObject as _JsonObject
 from vcorelib.paths import Pathlike, find_file
 
 # internal
@@ -17,6 +21,33 @@
 class Config(IfgenDictCodec, _BasicDictCodec):
     """The top-level configuration object for the package."""
 
+    def init(self, data: _JsonObject) -> None:
+        """Initialize this instance."""
+
+        super().init(data)
+
+        common = ["identifier", "unit_test"]
+
+        # Forward enum settings.
+        enum_forwards = common + ["use_map"]
+        enum: dict[str, Any]
+        for enum in data.get("enums", {}).values():  # type: ignore
+            for forward in enum_forwards:
+                enum.setdefault(
+                    forward,
+                    data["enum"][forward],  # type: ignore
+                )
+
+        # Forward struct settings.
+        struct_forwards = common + ["codec", "stream", "methods"]
+        struct: dict[str, Any]
+        for struct in data.get("structs", {}).values():  # type: ignore
+            for forward in struct_forwards:
+                struct.setdefault(
+                    forward,
+                    data["struct"][forward],  # type: ignore
+                )
+
 
 def load(path: Pathlike) -> Config:
     """Load a configuration object."""

ifgen/data/default.yaml

@@ -1,5 +1,9 @@
 ---
+struct: {}
 structs: {}
 
+enum: {}
+enums: {}
+
 ifgen:
   common: {}

ifgen/data/schemas/Config.yaml

@@ -36,21 +36,41 @@ properties:
       "^[a-zA-Z0-9-_.]+$":
         $ref: package://ifgen/schemas/Struct.yaml
 
-  struct_id_underlying: &id_underlying
-    type: string
-    default: uint16_t
-    enum:
-      - int8_t
-      - int16_t
-      - int32_t
-      - int64_t
+  # Defaults for struct generation.
+  struct:
+    type: object
+    additionalProperties: false
+    required: []
+    properties:
+      codec:
+        type: boolean
+        default: true
+      stream:
+        type: boolean
+        default: true
+      methods:
+        type: boolean
+        default: true
+      identifier:
+        type: boolean
+        default: true
+      unit_test:
+        type: boolean
+        default: true
 
-      - uint8_t
-      - uint16_t
-      - uint32_t
-      - uint64_t
+      id_underlying: &id_underlying
+        type: string
+        default: uint16_t
+        enum:
+          - int8_t
+          - int16_t
+          - int32_t
+          - int64_t
 
-  enum_id_underlying: *id_underlying
+          - uint8_t
+          - uint16_t
+          - uint32_t
+          - uint64_t
 
   enums:
     type: object
@@ -59,5 +79,22 @@ properties:
       "^[a-zA-Z0-9-_.]+$":
         $ref: package://ifgen/schemas/Enum.yaml
 
+  # Defaults for enum generation.
+  enum:
+    type: object
+    additionalProperties: false
+    required: []
+    properties:
+      id_underlying: *id_underlying
+      use_map:
+        type: boolean
+        default: true
+      identifier:
+        type: boolean
+        default: true
+      unit_test:
+        type: boolean
+        default: true
+
   ifgen:
     type: object

ifgen/data/schemas/Enum.yaml

@@ -3,7 +3,6 @@ includes:
   - has_description.yaml
   - has_namespace.yaml
   - has_json_indent.yaml
-  - has_unit_test.yaml
 
 required: [enum]
 
@@ -22,13 +21,13 @@ properties:
           description:
             type: string
 
+  # Provide defaults from a higher-level configuration.
   use_map:
     type: boolean
-    default: true
-
   identifier:
     type: boolean
-    default: true
+  unit_test:
+    type: boolean
 
   underlying:
     type: string

ifgen/data/schemas/Struct.yaml

@@ -4,26 +4,21 @@ includes:
   - has_namespace.yaml
   - has_json_indent.yaml
   - has_expected_size.yaml
-  - has_unit_test.yaml
 
 required: [fields]
 
 properties:
+  # Provide defaults from a higher-level configuration.
   codec:
     type: boolean
-    default: true
-
   stream:
     type: boolean
-    default: true
-
   methods:
     type: boolean
-    default: true
-
   identifier:
     type: boolean
-    default: true
+  unit_test:
+    type: boolean
 
   instances:
     type: array

ifgen/enum/header.py

@@ -57,7 +57,7 @@ def enum_header(task: GenerateTask, writer: IndentedFileWriter) -> None:
         writer.write(
             (
                 "static constexpr "
-                f"{task.env.config.data['enum_id_underlying']} "
+                f"{task.env.config.data['enum']['id_underlying']} "
                 f"{task.name}_id = {runtime.id};"
             )
         )

ifgen/struct/__init__.py

@@ -190,10 +190,13 @@ def create_struct(task: GenerateTask) -> None:
                 style=CommentStyle.C_DOXYGEN
             ) as lines:
                 if task.instance["identifier"]:
+                    underlying = task.env.config.data["struct"][
+                        "id_underlying"
+                    ]
                     lines.append(
                         (
                             "static constexpr "
-                            f"{task.env.config.data['struct_id_underlying']} "
+                            f"{underlying} "
                             f"id = {task.protocol().id};",
                             f"{task.name}'s identifier.",
                         )

ifgen/svd/group/__init__.py

@@ -32,7 +32,10 @@ def struct_instance(peripheral: Peripheral) -> dict[str, Any]:
 
 
 def struct_data(
-    group: PeripheralGroup, structs: StructMap, enums: EnumMap
+    group: PeripheralGroup,
+    structs: StructMap,
+    enums: EnumMap,
+    min_enum_members: int,
 ) -> dict[str, Any]:
     """Get struct data for a peripheral group."""
 
@@ -42,7 +45,11 @@ def struct_data(
 
     data["instances"] = [struct_instance(x) for x in group.peripherals]
     size, data["fields"] = struct_fields(
-        peripheral.registers, structs, enums, peripheral.base_name(lower=False)
+        peripheral.registers,
+        structs,
+        enums,
+        peripheral.base_name(lower=False),
+        min_enum_members,
     )
 
     # Too difficult due to padding.
@@ -57,6 +64,7 @@ def handle_group(
     output_dir: Path,
     group: PeripheralGroup,
     includes: set[Path],
+    min_enum_members: int,
 ) -> None:
     """Handle a peripheral group."""
 
@@ -65,5 +73,7 @@ def handle_group(
 
     structs: StructMap = {}
     enums: EnumMap = {}
-    structs[group.root.base_name()] = struct_data(group, structs, enums)
+    structs[group.root.base_name()] = struct_data(
+        group, structs, enums, min_enum_members
+    )
     ARBITER.encode(output, {"structs": structs, "enums": enums})