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ada-git-code

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return J;
end if;
end loop;
return 0;
end Child_Index;
--------------------
-- Discard_Parent --
--------------------
overriding procedure Discard_Parent (Self : in out Node_With_Parent) is
Changed : Boolean;
Ignore : Integer := 0;
Now : constant Version_Trees.Version :=
Self.Document.History.Changing;
begin
Changed := Self.Local_Changes > 0 or Self.Nested_Changes > 0;
if Changed then
Self.Propagate_Nested_Changes (-1);
end if;
Versioned_Nodes.Discard (Self.Parent, Now, Ignore);
if Changed then
Self.Propagate_Nested_Changes (1);
end if;
end Discard_Parent;
-----------------
-- First_Token --
-----------------
function First_Token
(Self : aliased in out Node'Class;
Time : Version_Trees.Version)
return Tokens.Token_Access
is
Child : Node_Access;
begin
if Self.Arity > 0 then
Child := Self.Child (1, Time);
if Child.Is_Token then
return Tokens.Token_Access (Child);
else
return Child.First_Token (Time);
end if;
elsif Self.Is_Token then
return Tokens.Token'Class (Self)'Access;
else
return null;
end if;
end First_Token;
--------------
-- Get_Flag --
--------------
overriding function Get_Flag
(Self : Node_With_Exist;
Flag : Transient_Flags) return Boolean is
begin
return Self.Flag (Flag);
end Get_Flag;
----------------
-- Last_Token --
----------------
function Last_Token
(Self : aliased in out Node'Class;
Time : Version_Trees.Version) return Tokens.Token_Access
is
Child : Node_Access;
begin
if Self.Arity > 0 then
Child := Self.Child (Self.Arity, Time);
if Child.Is_Token then
return Tokens.Token_Access (Child);
else
return Child.Last_Token (Time);
end if;
elsif Self.Is_Token then
return Tokens.Token'Class (Self)'Access;
else
return null;
end if;
end Last_Token;
-------------------
-- Local_Changes --
-------------------
overriding function Local_Changes
(Self : Node_With_Exist;
From : Version_Trees.Version;
To : Version_Trees.Version) return Boolean