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701 | with HAC_Sys.Compiler.PCode_Emit,
HAC_Sys.Defs,
HAC_Sys.Errors,
HAC_Sys.Parser.Helpers,
HAC_Sys.Parser.Modularity,
HAC_Sys.Parser.Packages,
HAC_Sys.PCode,
HAC_Sys.Scanner,
HAC_Sys.Targets.HAC_Virtual_Machine;
with HAT;
with Ada.Integer_Text_IO,
Ada.Strings.Fixed,
Ada.Text_IO;
package body HAC_Sys.Compiler is
use Defs;
procedure Set_Message_Feedbacks
(CD : in out Compiler_Data;
trace_params : in Compilation_Trace_Parameters)
is
begin
CD.trace := trace_params;
end Set_Message_Feedbacks;
-- Initialize the compiler for a new unit.
procedure Init (CUD : out Current_Unit_Data) is
begin
CUD.c := ' ';
CUD.CC := 0;
CUD.LL := 0;
CUD.level_0_def.Clear;
CUD.use_hat_stack_top := 0;
CUD.Use_HAT_Stack (CUD.use_hat_stack_top) := False;
end Init;
-- Initialize the compiler for an entire build.
procedure Init (CD : out Compiler_Data) is
begin
CD.Arrays_Count := 0;
CD.Blocks_Count := 0;
CD.Float_Constants_Count := 0;
CD.loop_nesting_level := 0;
CD.Packages_Count := 0;
-- Identifiers
CD.Id_Count := 0;
CD.IdTab (CD.Id_Count).name := Empty_Alfa;
-- Strings literals
CD.Strings_Table_Top := Strings_Constants_Table_Type'First - 1;
-- Tasks, Entries
CD.Tasks_Definitions_Count := 0;
CD.Entries_Count := 0;
-- Location Counter (in output code)
CD.LC := 0;
CD.CMax := CDMax;
-- Code optimization:
CD.folded_instructions := 0;
CD.specialized_instructions := 0;
-- Current block name for debugging of HAC programs.
CD.Full_Block_Id := Universe;
--
CD.Main_Program_ID := Empty_Alfa;
CD.Main_Program_ID_with_case := Empty_Alfa;
CD.Main_Proc_Id_Index := 0;
--
-- Current unit data
--
Init (CD.CUD);
-- Scanner data
CD.Sy := Dummy_Symbol;
CD.syStart := 1;
CD.syEnd := 1;
CD.prev_sy_start := 1;
CD.prev_sy_end := 1;
CD.prev_sy_line := 0;
CD.error_count := 0;
CD.minor_error_count := 0;
CD.diags := no_diagnostic;
CD.total_lines := 0;
Scanner.InSymbol (CD);
--
CD.Display (0) := 0; -- Added 7-Dec-2009
CD.pkg_prefix := HAT.Null_VString;
--
CD.target.Initialize_Code_Emission;
end Init;
-- Print_Tables is for debugging purposes.
--
procedure Print_Tables (CD : in Compiler_Data) is
use Ada.Text_IO, Ada.Integer_Text_IO, Ada.Strings.Fixed;
package HIIO is new Integer_IO (HAC_Integer);
use HIIO;
--
function Cut_name (n : String; l : Natural) return String is
dots : constant String := "...";
begin
if n'Length > l then
return dots & n (n'Last - (l - 1) + dots'Length .. n'Last);
else
return n;
end if;
end Cut_name;
--
procedure Show_Padded (n : String; t : Positive) is
trunc : constant String := Cut_name (n, t);
begin
Put (CD.comp_dump, " " & trunc & Integer'Max (0, t - trunc'Length) * ' ');
end Show_Padded;
use type Alfa;
Alng : constant := 50; -- Max characters displayed on this dump.
begin
New_Line (CD.comp_dump);
Put_Line (CD.comp_dump,
" Identifiers" & (Alng - 6) * ' ' &
"Link Object " &
"TYP Ref Norm Lvl Adr Blck"
);
Put_Line (CD.comp_dump,
(Alng + Entity_Kind'Width + Typen'Width + Boolean'Width + 34) * '-'
);
-- We list all definitions, starting
-- from Main (last Id of the "zero block" / standard).
--
for I in 1 .. CD.Id_Count loop
declare
r : IdTabEntry renames CD.IdTab (I);
begin
Put (CD.comp_dump, I, 4);
Show_Padded (A2S (r.name_with_case), Alng);
Put (CD.comp_dump, r.link, 4);
Show_Padded (Entity_Kind'Image (r.entity), Entity_Kind'Width);
Show_Padded (Typen'Image (r.xtyp.TYP), Typen'Width);
Put (CD.comp_dump, r.xtyp.Ref, 5);
Show_Padded (Boolean'Image (r.normal), Boolean'Width);
Put (CD.comp_dump, Integer (r.lev), 3);
Put (CD.comp_dump, r.adr_or_sz, 5);
if r.block_or_pkg_ref > 0 then
Put (CD.comp_dump, r.block_or_pkg_ref, 5);
else
Put (CD.comp_dump, " ");
end if;
Put (CD.comp_dump, " " & Declaration_Kind'Image (r.decl_kind));
New_Line (CD.comp_dump);
end;
end loop;
New_Line (CD.comp_dump);
Put_Line (CD.comp_dump, " Tasks Block#");
for I in 1 .. CD.Tasks_Definitions_Count loop
Put (CD.comp_dump, I, 4);
Put (CD.comp_dump, ' ');
Put (CD.comp_dump, A2S (CD.IdTab (CD.Tasks_Definitions_Table (I)).name) & " ");
Put (CD.comp_dump, CD.IdTab (CD.Tasks_Definitions_Table (I)).block_or_pkg_ref);
New_Line (CD.comp_dump);
end loop;
New_Line (CD.comp_dump);
if CD.Entries_Count > 0 then
Put (CD.comp_dump, " Entries ");
New_Line (CD.comp_dump);
for I in 1 .. CD.Entries_Count loop
Put (CD.comp_dump, I, 4);
Put (CD.comp_dump,
' ' & A2S (CD.IdTab (CD.Entries_Table (I)).name) & " in Task " &
A2S (CD.IdTab (
CD.Tasks_Definitions_Table (Integer (CD.IdTab (CD.Entries_Table (I)).adr_or_sz))
).name)
);
New_Line (CD.comp_dump);
end loop;
New_Line (CD.comp_dump);
end if;
Put_Line (CD.comp_dump, " Blocks" & Alng * ' ' & " Last_ID FPar LPar PSze Vsze");
for I in 1 .. CD.Blocks_Count loop
declare
r : BTabEntry renames CD.Blocks_Table (I);
begin
Put (CD.comp_dump, I, 4);
Show_Padded (A2S (r.Id), Alng);
Put (CD.comp_dump, r.Last_Id_Idx, 10);
Put (CD.comp_dump, r.First_Param_Id_Idx, 5);
Put (CD.comp_dump, r.Last_Param_Id_Idx, 5);
Put (CD.comp_dump, r.PSize, 5);
Put (CD.comp_dump, r.VSize, 5);
New_Line (CD.comp_dump);
end;
end loop;
New_Line (CD.comp_dump);
if CD.Arrays_Count = 0 then
Put_Line (CD.comp_dump, " Arrays: none");
else
Put_Line
(CD.comp_dump,
" Array | Index: typ_________ " &
" Element: typ_______ref " &
" Low___High El. Size Ar. Size Dims");
--
for i in 1 .. CD.Arrays_Count loop
declare
r : ATabEntry renames CD.Arrays_Table (i);
package TIO is new Enumeration_IO (Typen);
use TIO;
typ_img : String (1 .. Typen'Width);
begin
Put (CD.comp_dump, i, 7);
Put (typ_img, r.Index_xTyp.TYP); -- Padded
Put (CD.comp_dump, " | " & typ_img);
Put (typ_img, r.Element_xTyp.TYP); -- Padded
Put (CD.comp_dump, " " & typ_img);
Put (CD.comp_dump, r.Element_xTyp.Ref, 3);
Put (CD.comp_dump, r.Index_xTyp.Discrete_First, 7);
Put (CD.comp_dump, r.Index_xTyp.Discrete_Last, 7);
Put (CD.comp_dump, r.Element_Size, 11);
Put (CD.comp_dump, r.Array_Size, 9);
Put (CD.comp_dump, r.dimensions, 5);
end;
New_Line (CD.comp_dump);
end loop;
end if;
New_Line (CD.comp_dump);
if CD.Packages_Count = 0 then
Put_Line (CD.comp_dump, " Packages: none");
else
Put_Line
(CD.comp_dump, " Package | First decl. | Last public | Last private");
for i in 1 .. CD.Packages_Count loop
declare
p : Package_Table_Entry renames CD.Packages_Table (i);
begin
Put (CD.comp_dump, i, 8);
Put (CD.comp_dump, p.first_public_declaration, 15);
Put (CD.comp_dump, p.last_public_declaration, 14);
Put (CD.comp_dump, p.last_private_declaration, 15);
end;
New_Line (CD.comp_dump);
end loop;
end if;
New_Line (CD.comp_dump);
Put_Line (CD.comp_dump, " Library Level visible identifiers (unordered list):");
for l0 of CD.CUD.level_0_def loop
Put_Line (CD.comp_dump, " " & A2S (CD.IdTab (l0).name));
end loop;
New_Line (CD.comp_dump);
if CD.Main_Program_ID /= Empty_Alfa then
Put_Line (CD.comp_dump, " Information about Main procedure:");
Put_Line (CD.comp_dump, " Name : " & A2S (CD.Main_Program_ID_with_case));
Put_Line (CD.comp_dump, " Block # : " &
Defs.Index'Image (CD.IdTab (CD.Main_Proc_Id_Index).block_or_pkg_ref));
end if;
New_Line (CD.comp_dump);
Put_Line (CD.comp_dump, "String table. Length:" & CD.Strings_Table_Top'Image);
Put_Line (CD.comp_dump, "----");
for i in Strings_Constants_Table_Type'First .. CD.Strings_Table_Top loop
Put (CD.comp_dump, CD.Strings_Constants_Table (i));
if i mod 70 = 0 or else i = CD.Strings_Table_Top then
New_Line (CD.comp_dump);
end if;
end loop;
Put_Line (CD.comp_dump, "----");
end Print_Tables;
---------------------------------------------------------------------------
procedure Progress_Message (CD : Co_Defs.Compiler_Data; msg : String) is
begin
if CD.trace.progress = null then
Ada.Text_IO.Put_Line (msg);
else
CD.trace.progress (msg);
end if;
end Progress_Message;
procedure Dump_HAC_VM_Asm (CD : Co_Defs.Compiler_Data; file_name : String) is
use Ada.Text_IO;
asm_dump : File_Type;
begin
if CD.Is_HAC_VM then
Create (asm_dump, Out_File, file_name);
PCode.Dump
(CD.ObjCode (CD.ObjCode'First .. CD.LC - 1), -- Dump only compiled part.
CD.Strings_Constants_Table,
CD.Float_Constants_Table,
asm_dump);
Close (asm_dump);
end if;
end Dump_HAC_VM_Asm;
procedure Compile_Main
(CD : in out Co_Defs.Compiler_Data;
LD : in out Librarian.Library_Data;
main_name_hint : String;
cmp_dump_file_name : String := ""; -- Compiler dump
listing_file_name : String := ""; -- Listing of source code with details
var_map_file_name : String := "")
is
use Ada.Text_IO, Parser.Helpers, Errors;
use type HAC_Integer, Alfa;
map_file : File_Type;
full_main_Id : HAT.VString;
main_block : Parser.Block_Data_Type;
main_file_name : constant String := HAT.VStr_Pkg.To_String (CD.CUD.source_file_name);
begin -- Compile_Main
if CD.trace.detail_level >= 1 then
Progress_Message
(CD, "HAC Ada Compiler version " & version & ", " & reference);
Progress_Message (CD, "Compiling main: " & main_file_name);
end if;
Init (CD);
CD.listing_requested := listing_file_name /= "";
if CD.listing_requested then
Create (CD.listing, Name => listing_file_name);
Put_Line (CD.listing, Header);
end if;
CD.comp_dump_requested := cmp_dump_file_name /= "";
if CD.comp_dump_requested then
Create (CD.comp_dump, Name => cmp_dump_file_name);
Put_Line (CD.comp_dump, "Compiler: check for main's context clause");
end if;
Librarian.Apply_WITH_USE_Standard (CD, LD); -- The invisible "with Standard; use Standard;"
Parser.Modularity.Context_Clause (CD, LD); -- Parse the "with"'s and "use"'s, compile units.
if CD.Sy /= PROCEDURE_Symbol then
Error (CD, err_missing_a_procedure_declaration, " (main)", severity => major); -- PROCEDURE Name is
end if;
Scanner.InSymbol (CD);
loop
if CD.Sy /= IDent then
Error (CD, err_identifier_missing, severity => major);
end if;
full_main_Id := full_main_Id & CD.Id_with_case;
Scanner.InSymbol (CD);
exit when CD.Sy /= Period;
-- Here we have a Parent.Child naming.
Scanner.InSymbol (CD);
-- !! TBD: do the implicit "with Parent;" here.
full_main_Id := full_main_Id & '.';
end loop;
CD.Main_Program_ID_with_case := full_main_Id;
CD.Main_Program_ID := HAT.To_Upper (full_main_Id);
if CD.Main_Program_ID /= main_name_hint then
Error
(CD, err_wrong_unit_name,
main_name_hint, A2S (CD.Main_Program_ID),
major, True);
end if;
if CD.Sy /= IS_Symbol then
-- procedure Name IS
Error (CD, err_general_error, "main procedure should be parameterless", severity => major);
end if;
if CD.comp_dump_requested then
Put_Line (CD.comp_dump, "Compiler: main procedure is " & A2S (CD.Main_Program_ID));
end if;
Librarian.Enter_Library_Level_Def (CD, A2S (CD.Main_Program_ID_with_case), Prozedure, NOTYP, 0);
CD.Main_Proc_Id_Index := CD.Id_Count;
CD.Tasks_Definitions_Table (0) := CD.Id_Count; -- Task Table Entry for main task.
CD.Blocks_Table (0) := -- Block Table Entry for stuff before Main (probably useless)
(Id => S2A ("-- Definitions before Main"),
Last_Id_Idx => CD.Main_Proc_Id_Index,
First_Param_Id_Idx => 1,
Last_Param_Id_Idx => 0,
PSize => 0,
VSize => 0,
SrcFrom => CD.CUD.line_count,
SrcTo => CD.CUD.line_count);
main_block.level := 1;
main_block.block_id_index := CD.Id_Count;
main_block.entity := Prozedure;
main_block.is_main := True;
main_block.previous_declaration_id_index := No_Id;
-- Start Compiling of Main
Parser.Block (
CD, Block_Begin_Symbol + Statement_Begin_Symbol,
False, main_block,
CD.Main_Program_ID,
CD.Main_Program_ID_with_case
);
CD.total_lines := CD.total_lines + CD.CUD.line_count; -- Add line count of main program.
-- Main procedure is parsed.
CD.target.Emit_Halt;
if CD.LC > CD.ObjCode'First
and then CD.target.all not in Targets.HAC_Virtual_Machine.Machine'Class
then
-- Some machine code was emitted for the HAC VM instead of the alternative target.
Error
(CD,
err_general_error,
"Code generation for alternative target (non-HAC-VM) is incomplete");
end if;
if CD.Sy /= Semicolon then
if CD.comp_dump_requested then
Put_Line (CD.comp_dump, "Compile terminated BEFORE FILE END");
end if;
if CD.listing_requested then
Put_Line (CD.listing, "Compile terminated BEFORE FILE END");
end if;
end if;
if CD.Blocks_Table (1).VSize > StMax - (STKINCR * CD.Tasks_Definitions_Count) then
Error (CD, err_stack_size, "");
end if;
CD.Blocks_Table (1).SrcTo := CD.CUD.line_count;
if CD.listing_requested then
Close (CD.listing);
end if;
if CD.diags /= no_diagnostic then
Compilation_Diagnostics_Summary (CD);
end if;
if var_map_file_name /= "" then
Create (map_file, Out_File, var_map_file_name);
Put_Line (map_file, " -* Symbol Table *-");
New_Line (map_file);
Put_Line (map_file, " LOC Name scope");
Put_Line (map_file, "------------------------");
New_Line (map_file);
for Blk of CD.IdTab (CD.Blocks_Table (0).Last_Id_Idx + 1 .. CD.Id_Count) loop
if Blk.entity = Variable then
if Blk.xtyp.TYP /= NOTYP then
Ada.Integer_Text_IO.Put (map_file, Integer (Blk.adr_or_sz), 4);
Put (map_file, A2S (Blk.name) & " ");
end if;
if Blk.lev = 1 then
Put (map_file, " Global(");
else
Put (map_file, " Local (");
end if;
Put (map_file, Nesting_Level'Image (Blk.lev));
Put (map_file, ')');
New_Line (map_file);
end if;
end loop;
New_Line (map_file);
Close (map_file);
end if;
if CD.trace.detail_level >= 2 then
Progress_Message (CD, "Compilation of " & main_file_name & " (main) completed");
end if;
exception
when End_Error =>
Error (CD, err_unexpected_end_of_text);
end Compile_Main;
--
-- !! Massively "W.I.P." state here !!
--
procedure Compile_Unit
(CD : in out Co_Defs.Compiler_Data;
LD : in out Librarian.Library_Data;
upper_name : String;
file_name : String;
as_specification : Boolean;
specification_id_index : Natural;
new_id_index : out Natural;
unit_context : in out Co_Defs.Id_Maps.Map; -- in : empty for spec, spec's context for body
-- out: spec's context or body's full context.
kind : out Librarian.Unit_Kind; -- The unit kind is discovered during parsing.
needs_body : out Boolean)
is
use Ada.Strings.Fixed, Ada.Text_IO, Librarian, Errors, Parser.Helpers, PCode;
-- Save state of unit currently parsed (within a WITH clause).
mem : constant Current_Unit_Data := CD.CUD;
Unit_Id_with_case : Alfa;
unit_block : Parser.Block_Data_Type;
indent : Natural := 0;
src_stream : Co_Defs.Source_Stream_Access;
function Spec_or_Body return String is
(" (" & (if as_specification then "specification)" else "body)"));
--
procedure Reactivate_USE_HAT is
-- Detect a directly visible item of the HAT package.
-- It that case, it proves that a "USE HAT" was in the context
-- clause of the specification.
some_stuff_in_HAT_str : constant String := "VSTRING";
some_stuff_in_HAT : constant Alfa := S2A (some_stuff_in_HAT_str);
stuff_index : Integer;
begin
if unit_context.Contains (some_stuff_in_HAT) then
stuff_index := unit_context (some_stuff_in_HAT);
if CD.IdTab (stuff_index).entity = Alias then
-- Item named VSTRING from a USE clause was detected.
-- Get the real item behind the alias (VSTRING -> ?.VSTRING):
stuff_index := Integer (CD.IdTab (stuff_index).adr_or_sz);
if A2S (CD.IdTab (stuff_index).name) = HAT_Name & '.' & some_stuff_in_HAT_str then
-- Now we are sure the item stems from the HAT package.
-- Normally, the full name is "HAT.VSTRING", unless HAT_Name has been customized.
CD.CUD.Use_HAT_Stack (CD.CUD.use_hat_stack_top) := True;
end if;
end if;
end if;
end Reactivate_USE_HAT;
--
function Indent_String (starting : Boolean) return String is
(case indent is
when 0 => "",
when 1 => "| ",
when others =>
(indent - 1) * ' ' &
(if starting then '\' else '/') & ' ');
begin
CD.recursion := CD.recursion + 1;
if CD.trace.detail_level >= 1 then
if CD.trace.detail_level >= 2 then
indent := CD.recursion;
end if;
Progress_Message
(CD,
Indent_String (True) & "Compiling " &
file_name & Spec_or_Body);
end if;
begin
LD.open_source (file_name, src_stream);
exception
when Name_Error =>
Error
(CD, err_library_error,
"file " & file_name & Spec_or_Body & " not found", severity => major);
end;
-- HAT.PUT_LINE("Compiling unit " & upper_name);
Set_Source_Stream (CD.CUD, src_stream, file_name, 0);
-- Reset scanner data (line counter etc.) and
-- library-level visible declarations (processed WITH of caller's compilation)
Init (CD.CUD);
-- If we are compiling the body of a unit, unit_context already contains, automatically:
-- - the WITH and USE context clauses of the spec,
-- - the package's declarations, incuding the private part.
-- Basically the body is a continuation of the spec, possibly in another file.
CD.CUD.level_0_def := unit_context;
Reactivate_USE_HAT;
--
-- We define Standard, or activate if this is not the first unit compiled.
--
Librarian.Apply_WITH_USE_Standard (CD, LD); -- The invisible "with Standard; use Standard;"
-- HAT.PUT_LINE("Unit " & upper_name & " sees and uses Standard");
Scanner.InSymbol (CD);
Parser.Modularity.Context_Clause (CD, LD); -- Parse the "with"'s and "use"'s, compile units.
case CD.Sy is
when PACKAGE_Symbol =>
Scanner.InSymbol (CD);
if CD.Sy = BODY_Symbol then
Scanner.InSymbol (CD); -- Absorb the BODY symbol.
kind := Package_Body;
if as_specification then
Error
(CD, err_library_error,
"specification expected in this file; found body", severity => major);
end if;
else
kind := Package_Declaration;
if not as_specification then
Error
(CD, err_library_error,
"body expected in this file; found specification", severity => major);
end if;
end if;
when FUNCTION_Symbol =>
kind := Function_Unit;
Scanner.InSymbol (CD);
when PROCEDURE_Symbol =>
kind := Procedure_Unit;
Scanner.InSymbol (CD);
when others =>
kind := Package_Declaration; -- Useless, but this removes an ObjectAda warning.
Error
(CD,
err_general_error,
"`package`, `procedure` or `function` expected here", severity => major);
end case;
if CD.Sy /= IDent then
Error (CD, err_identifier_missing, severity => major);
end if;
if A2S (CD.Id) /= upper_name then
Error (CD, err_wrong_unit_name, upper_name, A2S (CD.Id), major);
end if;
--
-- Enter the identifier:
--
Unit_Id_with_case := CD.Id_with_case;
case kind is
when Procedure_Unit =>
Librarian.Enter_Library_Level_Def (CD, A2S (Unit_Id_with_case), Prozedure, NOTYP, 0);
when Function_Unit =>
Librarian.Enter_Library_Level_Def (CD, A2S (Unit_Id_with_case), Funktion, NOTYP, 0);
-- The type of the return value is adjusted by Block.Function_Result_Profile.
when Package_Declaration =>
Librarian.Enter_Library_Level_Def (CD, A2S (Unit_Id_with_case), Paquetage, NOTYP, 0);
when Package_Body =>
-- Library-level package body doesn't need an entry in the identifier table:
null;
end case;
new_id_index := CD.Id_Count;
case kind is
when Subprogram_Unit =>
-- Absorb the identifier symbol:
Scanner.InSymbol (CD);
--
-- At this point, the current symbol should be: ";", "IS", "(",
-- or "RETURN" for a parameterless function.
--
unit_block.level := 1;
unit_block.block_id_index := new_id_index;
unit_block.entity := (if kind = Function_Unit then Funktion else Prozedure);
unit_block.is_main := False;
unit_block.previous_declaration_id_index := specification_id_index;
Parser.Block (
CD, Block_Begin_Symbol + Statement_Begin_Symbol,
False,
unit_block,
CD.IdTab (CD.Id_Count).name,
Unit_Id_with_case
);
case Split_Declaration_Kind (CD.IdTab (unit_block.block_id_index).decl_kind) is
when complete =>
if as_specification then
Error
(CD, err_library_error,
"specification expected in this file; found body", severity => major);
end if;
if kind = Function_Unit then
PCode_Emit.Emit_1 (CD, k_Exit_Function, End_Function_without_Return);
else
PCode_Emit.Emit_1 (CD, k_Exit_Call, Normal_Procedure_Call);
end if;
when spec_unresolved =>
if not as_specification then
Error
(CD, err_library_error,
"body expected in this file; found specification", severity => major);
end if;
when spec_resolved =>
raise Program_Error with "Unexpected case: spec_resolved";
end case;
needs_body := as_specification;
when Package_Declaration =>
unit_block.level := 0; -- Actually, not a block.
CD.IdTab (new_id_index).decl_kind := spec_resolved;
-- Why spec_resolved ? missing bodies for possible suprograms
-- in that package are checked anyway.
Parser.Packages.Package_Declaration (CD, empty_symset, unit_block, needs_body);
when Package_Body =>
unit_block.level := 0; -- Actually, not a block.
Parser.Packages.Package_Body (CD, empty_symset, unit_block);
needs_body := False;
end case;
LD.close_source (file_name);
if CD.trace.detail_level >= 2 then
Progress_Message
(CD,
Indent_String (False) &
" " & file_name & ": done.");
end if;
-- Export library-level context, possibly needed later by a body:
unit_context := CD.CUD.level_0_def;
CD.total_lines := CD.total_lines + CD.CUD.line_count;
-- Forget about the compilation just completed, back to the ongoing
-- compilation that triggered a call to Compile_Unit via a WITH:
CD.CUD := mem;
CD.recursion := CD.recursion - 1;
exception
when others =>
LD.close_source (file_name);
raise;
end Compile_Unit;
function Unit_Compilation_Successful (CD : Compiler_Data) return Boolean is
begin
return CD.error_count = 0;
end Unit_Compilation_Successful;
function Unit_Object_Code_Size (CD : Compiler_Data) return Natural is
begin
return CD.LC;
end Unit_Object_Code_Size;
end HAC_Sys.Compiler;
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