interpreter: add type annotations to func_declare_dependency

mesonbuild/interpreter/interpreter.py

@@ -691,7 +691,8 @@ class Interpreter(InterpreterBase, HoldableObject):
         KwargInfo('version', (str, NoneType)),
         KwargInfo('objects', ContainerTypeInfo(list, build.ExtractedObjects), listify=True, default=[], since='1.1.0'),
     )
-    def func_declare_dependency(self, node, args, kwargs):
+    def func_declare_dependency(self, node: mparser.BaseNode, args: T.List[TYPE_var],
+                                kwargs: kwtypes.FuncDeclareDependency) -> dependencies.Dependency:
         deps = kwargs['dependencies']
         incs = self.extract_incdirs(kwargs)
         libs = kwargs['link_with']
@@ -2738,7 +2739,7 @@ class Interpreter(InterpreterBase, HoldableObject):
                                               install_tag=install_tag, data_type='configure'))
         return mesonlib.File.from_built_file(self.subdir, output)
 
-    def extract_incdirs(self, kwargs, key: str = 'include_directories'):
+    def extract_incdirs(self, kwargs, key: str = 'include_directories') -> T.List[build.IncludeDirs]:
         prospectives = extract_as_list(kwargs, key)
         if key == 'include_directories':
             for i in prospectives:
@@ -2747,7 +2748,7 @@ class Interpreter(InterpreterBase, HoldableObject):
                                           f'Use include_directories({i!r}) instead', location=self.current_node)
                     break
 
-        result = []
+        result: T.List[build.IncludeDirs] = []
         for p in prospectives:
             if isinstance(p, build.IncludeDirs):
                 result.append(p)

mesonbuild/interpreter/kwargs.py

@@ -12,6 +12,7 @@ from typing_extensions import TypedDict, Literal, Protocol
 from .. import build
 from .. import coredata
 from ..compilers import Compiler
+from ..dependencies.base import Dependency
 from ..mesonlib import EnvironmentVariables, MachineChoice, File, FileMode, FileOrString, OptionKey
 from ..modules.cmake import CMakeSubprojectOptions
 from ..programs import ExternalProgram
@@ -360,3 +361,20 @@ class Jar(_BaseBuildTarget):
 
     main_class: str
     java_resources: T.Optional[build.StructuredSources]
+
+
+class FuncDeclareDependency(TypedDict):
+
+    compile_args: T.List[str]
+    d_import_dirs: T.List[T.Union[build.IncludeDirs, str]]
+    d_module_versions: T.List[T.Union[str, int]]
+    dependencies: T.List[Dependency]
+    extra_files: T.List[FileOrString]
+    include_directories: T.List[T.Union[build.IncludeDirs, str]]
+    link_args: T.List[str]
+    link_whole: T.List[T.Union[build.StaticLibrary, build.CustomTarget, build.CustomTargetIndex]]
+    link_with: T.List[build.LibTypes]
+    objects: T.List[build.ExtractedObjects]
+    sources: T.List[T.Union[FileOrString, build.GeneratedTypes]]
+    variables: T.Dict[str, str]
+    version: T.Optional[str]