Implemented details of Lexer_Context type

1 files changed, 22 insertions, 2 deletions

diff --git a/src/packrat-lexer.ads b/src/packrat-lexer.ads
index 382b7ff..fe5ff9d 100644
--- a/src/packrat-lexer.ads
+++ b/src/packrat-lexer.ads
@@ -1,5 +1,10 @@
 
 
+private with
+
+    Ada.Containers.Vectors;
+
+
 generic
 
     type Label_Enum is (<>);
@@ -276,9 +281,24 @@ private
 
 
 
-    type Lexer_Context is new Ada.Finalization.Controlled with null record;
+    package Token_Vectors is new Ada.Containers.Vectors
+       (Index_Type   => Positive,
+        Element_Type => Gen_Tokens.Token,
+        "="          => Gen_Tokens."=");
 
-    Empty_Context : constant Lexer_Context := (Ada.Finalization.Controlled with null record);
+    type Lexer_Context is new Ada.Finalization.Controlled with record
+        Result_So_Far : Token_Vectors.Vector;
+        Position      : Positive;
+        Status        : Result_Status;
+        Pass_Forward  : Element_Array_Access;
+    end record;
+
+    Empty_Context : constant Lexer_Context :=
+       (Ada.Finalization.Controlled with
+        Result_So_Far => Token_Vectors.Empty_Vector,
+        Position      => 1,
+        Status        => Success,
+        Pass_Forward  => null);
 
 
 end Packrat.Lexer;