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124 | with HAC_Sys.Co_Defs,
HAC_Sys.Defs;
with HAT;
with Ada.Characters.Handling,
Ada.Unchecked_Conversion;
package body HAC_Sys.Interfacing is
use HAT, Defs;
function To_HAC (Data : Integer) return HAC_Element is
new_element : HAC_Element;
begin
new_element.I := HAC_Integer (Data);
return new_element;
end To_HAC;
function To_HAC (Data : Long_Float) return HAC_Element is
begin
return GR_Real (HAT.Real (Data));
end To_HAC;
function To_HAC (Data : String) return HAC_Element is
begin
return GR_VString (Data);
end To_HAC;
function To_HAC_Any_Integer (Data : Any_Integer) return HAC_Element is
new_element : HAC_Element;
begin
new_element.I := HAC_Integer (Data);
return new_element;
end To_HAC_Any_Integer;
function To_HAC_Any_Enum (Data : Any_Enum) return HAC_Element is
new_element : HAC_Element;
begin
new_element.I := Any_Enum'Pos (Data);
return new_element;
end To_HAC_Any_Enum;
function To_HAC_Any_Float (Data : Any_Float) return HAC_Element is
begin
return GR_Real (HAT.Real (Data));
end To_HAC_Any_Float;
function To_Native (Data : HAC_Element) return Integer is
begin
return Integer (Data.I);
end To_Native;
function To_Native (Data : HAC_Element) return Long_Float is
begin
if Data.Special = Floats then
return Long_Float (Data.R);
end if;
raise HAC_Type_Error with "Expected a HAT.Real, found Integer or " & Typen'Image (Data.Special);
end To_Native;
function To_Native (Data : HAC_Element) return String is
begin
if Data.Special = VStrings then
return To_String (Data.V);
end if;
raise HAC_Type_Error with "Expected a VString, found Integer or " & Typen'Image (Data.Special);
end To_Native;
function To_Native_Any_Integer (Data : HAC_Element) return Any_Integer is
begin
return Any_Integer (Data.I);
end To_Native_Any_Integer;
function To_Native_Any_Enum (Data : HAC_Element) return Any_Enum is
begin
return Any_Enum'Val (Data.I);
end To_Native_Any_Enum;
function To_Native_Any_Float (Data : HAC_Element) return Any_Float is
begin
if Data.Special = Floats then
return Any_Float (Data.R);
end if;
raise HAC_Type_Error with "Expected a HAT.Real, found Integer or " & Typen'Image (Data.Special);
end To_Native_Any_Float;
function Get_VM_Variable (BD : Builder.Build_Data; Name : String) return String is
cur : constant Builder.String_Maps.Cursor := BD.global_VM_variables.Find (HAT.To_VString (Name));
use Builder.String_Maps;
begin
return
(if cur = Builder.String_Maps.No_Element then
""
else
HAT.To_String (Builder.String_Maps.Element (cur)));
end Get_VM_Variable;
procedure Set_VM_Variable (BD : in out Builder.Build_Data; Name : String; Value : String) is
begin
BD.global_VM_variables.Include (HAT.To_VString (Name), HAT.To_VString (Value));
end Set_VM_Variable;
procedure Register
(BD : Builder.Build_Data; Callback : Exported_Procedure; Name : String)
is
function Convert is
new Ada.Unchecked_Conversion
(Exported_Procedure, Co_Defs.Dummy_Procedure_Access);
use Ada.Characters.Handling;
begin
if Callback /= null then
BD.CD.Exported_Procedures.Include (To_Upper (Name), Convert (Callback));
end if;
end Register;
procedure Deregister (BD : Builder.Build_Data; Name : String)
is
use Ada.Characters.Handling;
begin
BD.CD.Exported_Procedures.Exclude (To_Upper (Name));
end Deregister;
end HAC_Sys.Interfacing;
|