Fix mypy errors reported with version 1.11.1 (#2359)

* Fix mypy errors reported with version 1.11.1

* Remove pyright None check

pwndbg/commands/argv.py

@@ -71,11 +71,11 @@ class argv_function(gdb.Function):
     def __init__(self) -> None:
         super().__init__("argv")
 
-    def invoke(self, number=0):
-        number = int(number)
+    def invoke(self, number_value: gdb.Value = gdb.Value(0), *args: gdb.Value) -> gdb.Value:
+        number = int(number_value)
 
         if number > pwndbg.gdblib.argv.argc:
-            return 0
+            return gdb.Value(0)
 
         ppchar = pwndbg.gdblib.typeinfo.pchar.pointer()
         value = gdb.Value(pwndbg.gdblib.argv.argv)
@@ -94,11 +94,11 @@ class envp_function(gdb.Function):
     def __init__(self) -> None:
         super().__init__("envp")
 
-    def invoke(self, number=0):
-        number = int(number)
+    def invoke(self, number_value: gdb.Value = gdb.Value(0), *args: gdb.Value) -> gdb.Value:
+        number = int(number_value)
 
         if number > pwndbg.gdblib.argv.envc:
-            return pwndbg.gdblib.typeinfo.void
+            return pwndbg.gdblib.typeinfo.void.optimized_out()
 
         ppchar = pwndbg.gdblib.typeinfo.pchar.pointer()
         value = gdb.Value(pwndbg.gdblib.argv.envp)
@@ -117,7 +117,7 @@ class argc_function(gdb.Function):
     def __init__(self) -> None:
         super().__init__("argc")
 
-    def invoke(self, number=0):
+    def invoke(self, *args: gdb.Value) -> int:
         return pwndbg.gdblib.argv.argc
 
 
@@ -132,8 +132,11 @@ class environ_function(gdb.Function):
     def __init__(self) -> None:
         super().__init__("environ")
 
-    def invoke(self, name):
-        name = name.string() + "="
+    def invoke(self, name_value: gdb.Value = gdb.Value(""), *args: gdb.Value) -> gdb.Value:
+        name = name_value.string()
+        if not name:
+            raise gdb.GdbError("No environment variable name provided")
+        name += "="
         ppchar = pwndbg.gdblib.typeinfo.pchar.pointer()
         value = gdb.Value(pwndbg.gdblib.argv.envp)
         envp = value.cast(ppchar)
@@ -144,7 +147,7 @@ class environ_function(gdb.Function):
             if sz.startswith(name):
                 return ptr
 
-        return pwndbg.gdblib.typeinfo.void
+        return pwndbg.gdblib.typeinfo.void.optimized_out()
 
 
 environ_function()

pwndbg/commands/segments.py

@@ -10,13 +10,13 @@ from pwndbg.commands import CommandCategory
 class segment(gdb.Function):
     """Get the flat address of memory based off of the named segment register."""
 
-    def __init__(self, name) -> None:
+    def __init__(self, name: str) -> None:
         super().__init__(name)
         self.name = name
 
-    def invoke(self, arg=0):
+    def invoke(self, arg: gdb.Value = gdb.Value(0), *args: gdb.Value) -> int:
         result = getattr(pwndbg.gdblib.regs, self.name)
-        return result + arg
+        return result + int(arg)
 
 
 # TODO/FIXME: This should be defined only for x86 and x86_64

pwndbg/gdblib/regs.py

@@ -195,7 +195,7 @@ class module(ModuleType):
             elif isinstance(regset, dict):  # regs.flags
                 retval.extend(regset.keys())
             else:
-                retval.append(regset)  # type: ignore[arg-type]
+                retval.append(regset)
         return retval
 
     def fix(self, expression: str) -> str: