Simplify config

Author: oprypin

mkdocstrings/handlers/crystal/collector.py

@@ -25,11 +25,6 @@
 
 
 class CrystalCollector(BaseCollector):
-    default_config: dict = {
-        "nested_types": False,
-        "file_filters": True,
-    }
-
     def __init__(self, crystal_docs_flags: Sequence[str] = ()):
         """Create a "collector", reading docs from `crystal doc` in the current directory.
 
@@ -75,7 +70,11 @@ def collect(self, identifier: str, config: Mapping[str, Any]) -> "DocView":
         Raises:
             CollectionError: When an item by that identifier couldn't be found.
         """
-        config = collections.ChainMap(config, self.default_config)
+        config = {
+            "nested_types": False,
+            "file_filters": True,
+            **config,
+        }
 
         item = self.root
         if identifier != "::":

mkdocstrings/handlers/crystal/renderer.py

@@ -1,4 +1,3 @@
-import collections
 import contextlib
 import xml.etree.ElementTree as etree
 from typing import Optional, TypeVar, Union
@@ -20,13 +19,12 @@
 class CrystalRenderer(base.BaseRenderer):
     fallback_theme = "material"
 
-    default_config: dict = {
-        "show_source_links": True,
-        "heading_level": 2,
-    }
-
     def render(self, data: DocItem, config: dict) -> str:
-        subconfig = collections.ChainMap(config, self.default_config)
+        subconfig = {
+            "show_source_links": True,
+            "heading_level": 2,
+            **config,
+        }
         template = self.env.get_template(data._TEMPLATE)
 
         with self._monkeypatch_highlight_function(default_lang="crystal"):