/usr/share/ada/adainclude/asis/asis-statements.adb is in libasis2014-dev 2014-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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-- --
-- ASIS-for-GNAT IMPLEMENTATION COMPONENTS --
-- --
-- A S I S . S T A T E M E N T S --
-- --
-- B o d y --
-- --
-- Copyright (C) 1995-2014, Free Software Foundation, Inc. --
-- --
-- ASIS-for-GNAT is free software; you can redistribute it and/or modify it --
-- under terms of the GNU General Public License as published by the Free --
-- Software Foundation; either version 3, or (at your option) any later --
-- version. ASIS-for-GNAT is distributed in the hope that it will be --
-- useful, but WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
-- --
-- --
-- --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception distributed with GNAT; see --
-- the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
-- ASIS-for-GNAT was originally developed by the ASIS-for-GNAT team at the --
-- Software Engineering Laboratory of the Swiss Federal Institute of --
-- Technology (LGL-EPFL) in Lausanne, Switzerland, in cooperation with the --
-- Scientific Research Computer Center of Moscow State University (SRCC --
-- MSU), Russia, with funding partially provided by grants from the Swiss --
-- National Science Foundation and the Swiss Academy of Engineering --
-- Sciences. ASIS-for-GNAT is now maintained by AdaCore --
-- (http://www.adacore.com). --
-- --
------------------------------------------------------------------------------
pragma Ada_2012;
with Asis.Declarations; use Asis.Declarations;
with Asis.Elements; use Asis.Elements;
with Asis.Errors; use Asis.Errors;
with Asis.Exceptions; use Asis.Exceptions;
with Asis.Expressions; use Asis.Expressions;
with Asis.Extensions; use Asis.Extensions;
with Asis.Set_Get; use Asis.Set_Get;
with A4G.A_Sem; use A4G.A_Sem;
with A4G.A_Sinput; use A4G.A_Sinput;
with A4G.Contt.UT; use A4G.Contt.UT;
with A4G.Mapping; use A4G.Mapping;
with A4G.Norm; use A4G.Norm;
with A4G.Vcheck; use A4G.Vcheck;
with A4G.Span_End; use A4G.Span_End;
with Atree; use Atree;
with Nlists; use Nlists;
with Sinfo; use Sinfo;
with Sinput; use Sinput;
package body Asis.Statements is
Package_Name : constant String := "Asis.Statements.";
---------------------------
-- ASIS 2005 Draft stuff --
---------------------------
------------------------
-- Associated_Message --
------------------------
function Associated_Message
(Statement : Asis.Statement)
return Asis.Expression
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
begin
Check_Validity (Statement, Package_Name & "Associated_Message");
if Arg_Kind not in A_Raise_Statement | A_Raise_Expression then
Raise_ASIS_Inappropriate_Element
(Diagnosis => Package_Name & "Associated_Message",
Wrong_Kind => Arg_Kind);
end if;
return Node_To_Element_New
(Node => Sinfo.Expression (Node (Statement)),
Starting_Element => Statement);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Associated_Message");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Associated_Message",
Ex => Ex,
Arg_Element => Statement);
end Associated_Message;
----------------------------------------
-- Extended_Return_Exception_Handlers --
----------------------------------------
function Extended_Return_Exception_Handlers
(Statement : Asis.Statement;
Include_Pragmas : Boolean := False)
return Asis.Exception_Handler_List
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Resilt_List : List_Id := No_List;
begin
Check_Validity
(Statement, Package_Name & "Extended_Return_Exception_Handlers");
if not (Arg_Kind = An_Extended_Return_Statement) then
Raise_ASIS_Inappropriate_Element
(Diagnosis => Package_Name & "Extended_Return_Exception_Handlers",
Wrong_Kind => Arg_Kind);
end if;
if Present (Handled_Statement_Sequence (Node (Statement))) then
Resilt_List :=
Exception_Handlers (Handled_Statement_Sequence (Node (Statement)));
end if;
return N_To_E_List_New
(List => Resilt_List,
Include_Pragmas => Include_Pragmas,
Starting_Element => Statement);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name &
"Extended_Return_Exception_Handlers");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Extended_Return_Exception_Handlers",
Ex => Ex,
Arg_Element => Statement);
end Extended_Return_Exception_Handlers;
--------------------------------
-- Extended_Return_Statements --
--------------------------------
function Extended_Return_Statements
(Statement : Asis.Statement;
Include_Pragmas : Boolean := False)
return Asis.Statement_List
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Result_List : List_Id := No_List;
begin
Check_Validity (Statement, Package_Name & "Extended_Return_Statements");
if not (Arg_Kind = An_Extended_Return_Statement) then
Raise_ASIS_Inappropriate_Element
(Diagnosis => Package_Name & "Extended_Return_Statements",
Wrong_Kind => Arg_Kind);
end if;
if Present (Handled_Statement_Sequence (Node (Statement))) then
Result_List :=
Sinfo.Statements (Handled_Statement_Sequence (Node (Statement)));
end if;
return N_To_E_List_New (List => Result_List,
Include_Pragmas => Include_Pragmas,
Starting_Element => Statement);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Extended_Return_Statements");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Extended_Return_Statements",
Ex => Ex,
Arg_Element => Statement);
end Extended_Return_Statements;
-------------------------------
-- Return_Object_Declaration --
-------------------------------
function Return_Object_Declaration
(Statement : Asis.Statement)
return Asis.Declaration
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Result_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Return_Object_Declaration");
if not (Arg_Kind = An_Extended_Return_Statement) then
Raise_ASIS_Inappropriate_Element
(Diagnosis => Package_Name & "Return_Object_Declaration",
Wrong_Kind => Arg_Kind);
end if;
Result_Node := First (Return_Object_Declarations (Node (Statement)));
while Nkind (Result_Node) /= N_Object_Declaration loop
-- It may be some internal subtypes here
Result_Node := Next (Result_Node);
end loop;
return Node_To_Element_New (Node => Result_Node,
Starting_Element => Statement);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Return_Object_Declaration");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Return_Object_Declaration",
Ex => Ex,
Arg_Element => Statement);
end Return_Object_Declaration;
------------------------------------------------------------------------------
-------------------
-- Aborted_Tasks --
-------------------
function Aborted_Tasks
(Statement : Asis.Statement)
return Asis.Expression_List
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Aborted_Tasks");
if not (Arg_Kind = An_Abort_Statement) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Aborted_Tasks",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
return N_To_E_List_New
(List => Names (Arg_Node),
Starting_Element => Statement);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Aborted_Tasks");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Aborted_Tasks",
Ex => Ex,
Arg_Element => Statement);
end Aborted_Tasks;
------------------------------------
-- Accept_Body_Exception_Handlers --
------------------------------------
function Accept_Body_Exception_Handlers
(Statement : Asis.Statement;
Include_Pragmas : Boolean := False)
return Asis.Exception_Handler_List
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
Resilt_List : List_Id := No_List;
begin
Check_Validity (Statement,
Package_Name & "Accept_Body_Exception_Handlers");
if not (Arg_Kind = An_Accept_Statement) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Accept_Body_Exception_Handlers",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
if Present (Handled_Statement_Sequence (Arg_Node)) then
Resilt_List :=
Exception_Handlers (Handled_Statement_Sequence (Arg_Node));
end if;
return N_To_E_List_New (List => Resilt_List,
Include_Pragmas => Include_Pragmas,
Starting_Element => Statement);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Bool_Par => Include_Pragmas,
Outer_Call => Package_Name & "Accept_Body_Exception_Handlers");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Accept_Body_Exception_Handlers",
Ex => Ex,
Arg_Element => Statement,
Bool_Par_ON => Include_Pragmas);
end Accept_Body_Exception_Handlers;
----------------------------
-- Accept_Body_Statements --
----------------------------
function Accept_Body_Statements
(Statement : Asis.Statement;
Include_Pragmas : Boolean := False)
return Asis.Statement_List
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
Resilt_List : List_Id := No_List;
begin
Check_Validity (Statement, Package_Name & "Accept_Body_Statements");
if not (Arg_Kind = An_Accept_Statement) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Accept_Body_Statements",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
if Present (Handled_Statement_Sequence (Arg_Node)) then
Resilt_List :=
Sinfo.Statements (Handled_Statement_Sequence (Arg_Node));
end if;
return N_To_E_List_New
(List => Resilt_List,
Include_Pragmas => Include_Pragmas,
Starting_Element => Statement);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Bool_Par => Include_Pragmas,
Outer_Call => Package_Name & "Accept_Body_Statements");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Accept_Body_Statements",
Ex => Ex,
Arg_Element => Statement,
Bool_Par_ON => Include_Pragmas);
end Accept_Body_Statements;
------------------------------
-- Accept_Entry_Direct_Name --
------------------------------
function Accept_Entry_Direct_Name
(Statement : Asis.Statement)
return Asis.Name
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Accept_Entry_Direct_Name");
if not (Arg_Kind = An_Accept_Statement) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Accept_Entry_Direct_Name",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
return Node_To_Element_New (
Node => Entry_Direct_Name (Arg_Node),
Internal_Kind => An_Identifier,
Starting_Element => Statement);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Accept_Entry_Direct_Name");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Accept_Entry_Direct_Name",
Ex => Ex,
Arg_Element => Statement);
end Accept_Entry_Direct_Name;
------------------------
-- Accept_Entry_Index --
------------------------
function Accept_Entry_Index
(Statement : Asis.Statement)
return Asis.Expression
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
Result_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Accept_Entry_Index");
if not (Arg_Kind = An_Accept_Statement) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Accept_Entry_Index",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
Result_Node := Entry_Index (Arg_Node);
if No (Result_Node) then
return Nil_Element;
else
return Node_To_Element_New (Node => Result_Node,
Starting_Element => Statement);
end if;
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Accept_Entry_Index");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Accept_Entry_Index",
Ex => Ex,
Arg_Element => Statement);
end Accept_Entry_Index;
-----------------------
-- Accept_Parameters --
-----------------------
function Accept_Parameters
(Statement : Asis.Statement)
return Asis.Parameter_Specification_List
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Accept_Parameters");
if not (Arg_Kind = An_Accept_Statement) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Accept_Parameters",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
return N_To_E_List_New
(List => Parameter_Specifications (Arg_Node),
Starting_Element => Statement,
Internal_Kind => A_Parameter_Specification);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Accept_Parameters");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Accept_Parameters",
Ex => Ex,
Arg_Element => Statement);
end Accept_Parameters;
---------------------------
-- Assignment_Expression --
---------------------------
function Assignment_Expression
(Statement : Asis.Statement)
return Asis.Expression
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Assignment_Expression");
if not (Arg_Kind = An_Assignment_Statement) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Assignment_Expression",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
return Node_To_Element_New (
Node => Sinfo.Expression (Arg_Node),
Starting_Element => Statement);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Assignment_Expression");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Assignment_Expression",
Ex => Ex,
Arg_Element => Statement);
end Assignment_Expression;
------------------------------
-- Assignment_Variable_Name --
------------------------------
function Assignment_Variable_Name
(Statement : Asis.Statement)
return Asis.Expression
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Assignment_Variable_Name");
if not (Arg_Kind = An_Assignment_Statement) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Assignment_Variable_Name",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
return Node_To_Element_New (
Node => Sinfo.Name (Arg_Node),
Starting_Element => Statement);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Assignment_Variable_Name");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Assignment_Variable_Name",
Ex => Ex,
Arg_Element => Statement);
end Assignment_Variable_Name;
-----------------------------
-- Block_Declarative_Items --
-----------------------------
function Block_Declarative_Items
(Statement : Asis.Statement;
Include_Pragmas : Boolean := False)
return Asis.Declarative_Item_List
is
Arg_El : Asis.Element;
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Block_Declarative_Items");
if not (Arg_Kind = A_Block_Statement) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Block_Declarative_Items",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
Arg_El := Statement;
if Special_Case (Arg_El) = A_Dummy_Block_Statement then
Set_Special_Case (Arg_El, Not_A_Special_Case);
end if;
return N_To_E_List_New
(List => Sinfo.Declarations (Arg_Node),
Include_Pragmas => Include_Pragmas,
Starting_Element => Arg_El);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Bool_Par => Include_Pragmas,
Outer_Call => Package_Name & "Block_Declarative_Items");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Block_Declarative_Items",
Ex => Ex,
Arg_Element => Statement,
Bool_Par_ON => Include_Pragmas);
end Block_Declarative_Items;
------------------------------
-- Block_Exception_Handlers --
------------------------------
function Block_Exception_Handlers
(Statement : Asis.Statement;
Include_Pragmas : Boolean := False)
return Asis.Exception_Handler_List
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
Arg_El : Asis.Element;
begin
Check_Validity (Statement, Package_Name & "Block_Exception_Handlers");
if not (Arg_Kind = A_Block_Statement) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Block_Exception_Handlers",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
if Special_Case (Statement) = A_Dummy_Block_Statement and then
No (Handled_Statement_Sequence (Arg_Node))
then
-- for the dummy block originated from the package_body_declaration
-- having no handled_sequence_of_statements on its own.
return Nil_Element_List;
end if;
Arg_El := Statement;
if Special_Case (Arg_El) = A_Dummy_Block_Statement then
Set_Special_Case (Arg_El, Not_A_Special_Case);
end if;
return N_To_E_List_New
(List =>
Exception_Handlers (Handled_Statement_Sequence (Arg_Node)),
Include_Pragmas => Include_Pragmas,
Starting_Element => Arg_El);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Bool_Par => Include_Pragmas,
Outer_Call => Package_Name & "Block_Exception_Handlers");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Block_Exception_Handlers",
Ex => Ex,
Arg_Element => Statement,
Bool_Par_ON => Include_Pragmas);
end Block_Exception_Handlers;
----------------------
-- Block_Statements --
----------------------
function Block_Statements
(Statement : Asis.Statement;
Include_Pragmas : Boolean := False)
return Asis.Statement_List
is
Arg_El : Asis.Element;
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Block_Statements");
if not (Arg_Kind = A_Block_Statement) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Block_Statements",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
Arg_El := Statement;
if Special_Case (Arg_El) = A_Dummy_Block_Statement then
Set_Special_Case (Arg_El, Not_A_Special_Case);
end if;
return N_To_E_List_New
(List =>
Sinfo.Statements (Handled_Statement_Sequence (Arg_Node)),
Include_Pragmas => Include_Pragmas,
Starting_Element => Arg_El);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Bool_Par => Include_Pragmas,
Outer_Call => Package_Name & "Block_Statements");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Block_Statements",
Ex => Ex,
Arg_Element => Statement,
Bool_Par_ON => Include_Pragmas);
end Block_Statements;
-------------------------------
-- Call_Statement_Parameters --
-------------------------------
function Call_Statement_Parameters
(Statement : Asis.Statement;
Normalized : Boolean := False)
return Asis.Association_List
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
Res_Norm_Case : Normalization_Cases := Is_Not_Normalized;
Res_Node_List : List_Id;
begin
Check_Validity (Statement, Package_Name & "Call_Statement_Parameters");
Arg_Node := Node (Statement);
if (not (Arg_Kind = An_Entry_Call_Statement or else
Arg_Kind = A_Procedure_Call_Statement))
or else
(Normalized and then Nkind (Arg_Node) = N_Attribute_Reference)
then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Call_Statement_Parameters",
Wrong_Kind => Arg_Kind);
end if;
if Is_Prefix_Notation (Statement) then
Arg_Node := R_Node (Statement);
end if;
if Normalized then
Res_Norm_Case := Is_Normalized;
end if;
if Normalized and then
Nkind (Arg_Node) /= N_Attribute_Reference
then
if No (Parameter_Associations (Arg_Node))
or else
Is_Nil (Corresponding_Called_Entity (Statement))
then
return Nil_Element_List;
else
return Normalized_Param_Associations (Call_Elem => Statement);
end if;
else
if Nkind (Arg_Node) = N_Attribute_Reference then
-- call to 'Output, 'Read or 'Write
Res_Node_List := Sinfo.Expressions (Arg_Node);
else
Res_Node_List := Parameter_Associations (Arg_Node);
end if;
return N_To_E_List_New (List => Res_Node_List,
Internal_Kind => A_Parameter_Association,
Norm_Case => Res_Norm_Case,
Starting_Element => Statement);
end if;
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Bool_Par => Normalized,
Outer_Call => Package_Name & "Call_Statement_Parameters");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Call_Statement_Parameters",
Ex => Ex,
Arg_Element => Statement,
Bool_Par_ON => Normalized);
end Call_Statement_Parameters;
-----------------
-- Called_Name --
-----------------
function Called_Name
(Statement : Asis.Statement)
return Asis.Expression
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
-- local variables needed for processing calls to 'Output, 'Read
-- and 'Write:
Result_Kind : Internal_Element_Kinds := Not_An_Element;
Result_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Called_Name");
if not (Arg_Kind = An_Entry_Call_Statement or else
Arg_Kind = A_Procedure_Call_Statement)
then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Called_Name",
Wrong_Kind => Arg_Kind);
end if;
if Is_Prefix_Notation (Statement) then
Arg_Node := R_Node (Statement);
else
Arg_Node := Node (Statement);
end if;
if Nkind (Arg_Node) = N_Attribute_Reference then
-- calls like T'Output (...); T'Read (...) and T'Write (...)
-- should be processed separately, and the result should
-- be built on the same node as argument
Result_Kind := Subprogram_Attribute_Kind (Arg_Node);
Result_Node := Arg_Node;
else
Result_Node := Sinfo.Name (Arg_Node);
end if;
if Is_Rewrite_Substitution (Result_Node)
and then
Nkind (Result_Node) = N_Explicit_Dereference
and then
Nkind (Prefix (Result_Node)) = N_Function_Call
then
-- Needed to process cases like F (1), where F - parameterless
-- function that returns access-to-subprogram result.
Result_Node := Prefix (Result_Node);
end if;
return Node_To_Element_New (
Starting_Element => Statement,
Node => Result_Node,
Internal_Kind => Result_Kind);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Called_Name");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Called_Name",
Ex => Ex,
Arg_Element => Statement);
end Called_Name;
---------------------
-- Case_Expression --
---------------------
function Case_Expression
(Statement : Asis.Statement)
return Asis.Expression
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Case_Expression");
if not (Arg_Kind = A_Case_Statement or else
Arg_Kind = A_Case_Expression)
then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Case_Expression",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
return Node_To_Element_New
(Node => Sinfo.Expression (Arg_Node),
Starting_Element => Statement);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Case_Expression");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Case_Expression",
Ex => Ex,
Arg_Element => Statement);
end Case_Expression;
-----------------------------------
-- Case_Path_Alternative_Choices --
-----------------------------------
function Case_Path_Alternative_Choices
(Path : Asis.Path)
return Asis.Element_List
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Path);
Arg_Node : Node_Id;
begin
Check_Validity
(Path, Package_Name & "Case_Path_Alternative_Choices");
if Arg_Kind not in A_Case_Path | A_Case_Expression_Path then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Case_Path_Alternative_Choices",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Path);
return Discrete_Choice_Node_To_Element_List (
Choice_List => Discrete_Choices (Arg_Node),
Starting_Element => Path);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Path,
Outer_Call => Package_Name &
"Case_Path_Alternative_Choices");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Case_Path_Alternative_Choices",
Ex => Ex,
Arg_Element => Path);
end Case_Path_Alternative_Choices;
-----------------------------------
-- Choice_Parameter_Specification --
-------------------------------------
function Choice_Parameter_Specification
(Handler : Asis.Exception_Handler)
return Asis.Declaration
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Handler);
Arg_Node : Node_Id;
Result_Node : Node_Id;
begin
Check_Validity
(Handler, Package_Name & "Choice_Parameter_Specification");
if not (Arg_Kind = An_Exception_Handler) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Choice_Parameter_Specification",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Handler);
Result_Node := Choice_Parameter (Arg_Node);
if No (Result_Node) then
return Nil_Element;
else
return Node_To_Element_New (
Node => Result_Node,
Internal_Kind => A_Choice_Parameter_Specification,
Starting_Element => Handler);
end if;
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Handler,
Outer_Call => Package_Name & "Choice_Parameter_Specification");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Choice_Parameter_Specification",
Ex => Ex,
Arg_Element => Handler);
end Choice_Parameter_Specification;
--------------------------
-- Condition_Expression --
--------------------------
function Condition_Expression (Path : Asis.Path) return Asis.Expression is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Path);
Res_Node : Node_Id := Empty;
Arg_Node : Node_Id;
begin
Check_Validity (Path, Package_Name & "Condition_Expression");
if not (Arg_Kind = An_If_Path or else
Arg_Kind = An_Elsif_Path or else
Arg_Kind = An_If_Expression_Path or else
Arg_Kind = An_Elsif_Expression_Path)
then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Condition_Expression",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := R_Node (Path);
case Arg_Kind is
when An_If_Path |
An_Elsif_Path =>
Res_Node := Condition (Arg_Node);
when An_If_Expression_Path |
An_Elsif_Expression_Path =>
Res_Node := Prev (Arg_Node);
when others =>
null;
end case;
return Node_To_Element_New (Node => Res_Node,
Starting_Element => Path);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Path,
Outer_Call => Package_Name & "Condition_Expression");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Condition_Expression",
Ex => Ex,
Arg_Element => Path);
end Condition_Expression;
---------------------------------
-- Corresponding_Called_Entity --
---------------------------------
function Corresponding_Called_Entity
(Statement : Asis.Statement)
return Asis.Declaration
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
begin
Check_Validity (Statement, Package_Name & "Corresponding_Called_Entity");
if not (Arg_Kind = An_Entry_Call_Statement or else
Arg_Kind = A_Procedure_Call_Statement)
then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Corresponding_Called_Entity",
Wrong_Kind => Arg_Kind);
end if;
return Get_Corr_Called_Entity (Statement);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Corresponding_Called_Entity");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Corresponding_Called_Entity",
Ex => Ex,
Arg_Element => Statement);
end Corresponding_Called_Entity;
-----------------------------------------
-- Corresponding_Destination_Statement --
-----------------------------------------
function Corresponding_Destination_Statement
(Statement : Asis.Statement)
return Asis.Statement
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
Res_Label : Node_Id;
Res_Stmt : Node_Id;
begin
Check_Validity
(Statement, Package_Name & "Corresponding_Destination_Statement");
if not (Arg_Kind = A_Goto_Statement) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Corresponding_Destination_Statement",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := R_Node (Statement);
if Is_Rewrite_Substitution (Arg_Node)
and then
Nkind (Arg_Node) = N_Loop_Statement
and then
Nkind (Original_Node (Arg_Node)) = N_Goto_Statement
then
-- goto statement is rewritten into infinite loop
if not Is_Empty_List (Sinfo.Statements (Arg_Node)) then
Res_Stmt := First (Sinfo.Statements (Arg_Node));
else
-- Pathological case:
--
-- <<Junk>> goto Junk;
Res_Stmt := Arg_Node;
end if;
else
Arg_Node := Node (Statement);
Res_Label := Parent (Entity (Sinfo.Name (Arg_Node)));
-- this is N_Implicit_Label_Declaration node representing the
-- implicit declaration of the destination label
Res_Stmt := Label_Construct (Res_Label);
while not Is_Statement (Res_Stmt) loop
Res_Stmt := Next (Res_Stmt);
end loop;
-- if we are in the tree corresponding to a successful compiler
-- run, we shall for sure find a statement after any label!
end if;
return Node_To_Element_New (Node => Res_Stmt,
Starting_Element => Statement);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name &
"Corresponding_Destination_Statement");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name &
"Corresponding_Destination_Statement",
Ex => Ex,
Arg_Element => Statement);
end Corresponding_Destination_Statement;
-------------------------
-- Corresponding_Entry --
-------------------------
function Corresponding_Entry
(Statement : Asis.Statement)
return Asis.Declaration
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
Res_Entry_Dcl : Node_Id;
Result_Unit : Compilation_Unit;
begin
Check_Validity (Statement, Package_Name & "Corresponding_Entry");
if not (Arg_Kind = An_Accept_Statement) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Corresponding_Entry",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
Res_Entry_Dcl := Parent (Entity (Entry_Direct_Name (Arg_Node)));
Result_Unit := Enclosing_Unit
(Encl_Cont_Id (Statement), Res_Entry_Dcl);
return Node_To_Element_New (Node => Res_Entry_Dcl,
In_Unit => Result_Unit);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Corresponding_Entry");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Corresponding_Entry",
Ex => Ex,
Arg_Element => Statement);
end Corresponding_Entry;
-------------------------------
-- Corresponding_Loop_Exited --
-------------------------------
function Corresponding_Loop_Exited
(Statement : Asis.Statement)
return Asis.Statement
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
Res_Loop : Node_Id;
Loop_Name : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Corresponding_Loop_Exited");
if not (Arg_Kind = An_Exit_Statement) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Corresponding_Loop_Exited",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
Loop_Name := Sinfo.Name (Arg_Node);
if Present (Loop_Name) then
-- we simply jump to the result loop:
Loop_Name := Parent (Entity (Loop_Name));
-- here we are in the implicit declaration of the loop name
Res_Loop := Label_Construct (Loop_Name);
else
-- here we have to traverse the tree up to the first enclosing
-- loop statement
Res_Loop := Parent (Arg_Node);
while Nkind (Res_Loop) /= N_Loop_Statement loop
Res_Loop := Parent (Res_Loop);
end loop;
end if;
return Node_To_Element_New (Node => Res_Loop,
Starting_Element => Statement);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Corresponding_Loop_Exited");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Corresponding_Loop_Exited",
Ex => Ex,
Arg_Element => Statement);
end Corresponding_Loop_Exited;
----------------------
-- Delay_Expression --
----------------------
function Delay_Expression
(Statement : Asis.Statement)
return Asis.Expression
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Delay_Expression");
if not (Arg_Kind = A_Delay_Until_Statement
or else
Arg_Kind = A_Delay_Relative_Statement)
then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Delay_Expression",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
return Node_To_Element_New
(Node => Sinfo.Expression (Arg_Node),
Starting_Element => Statement);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Delay_Expression");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Delay_Expression",
Ex => Ex,
Arg_Element => Statement);
end Delay_Expression;
-----------------------
-- Exception_Choices --
-----------------------
function Exception_Choices
(Handler : Asis.Exception_Handler)
return Asis.Element_List
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Handler);
Arg_Node : Node_Id;
begin
Check_Validity (Handler, Package_Name & "Exception_Choices");
if not (Arg_Kind = An_Exception_Handler) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Exception_Choices",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Handler);
return N_To_E_List_New
(List => Exception_Choices (Arg_Node),
Starting_Element => Handler);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Handler,
Outer_Call => Package_Name & "Exception_Choices");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Exception_Choices",
Ex => Ex,
Arg_Element => Handler);
end Exception_Choices;
--------------------
-- Exit_Condition --
--------------------
function Exit_Condition
(Statement : Asis.Statement)
return Asis.Expression
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
Result_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Exit_Condition");
if not (Arg_Kind = An_Exit_Statement) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Exit_Loop_Name",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
Result_Node := Condition (Arg_Node);
if No (Result_Node) then
return Nil_Element;
else
return Node_To_Element_New (Node => Result_Node,
Starting_Element => Statement);
end if;
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Exit_Condition");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Exit_Condition",
Ex => Ex,
Arg_Element => Statement);
end Exit_Condition;
--------------------
-- Exit_Loop_Name --
--------------------
function Exit_Loop_Name
(Statement : Asis.Statement)
return Asis.Expression
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
Result_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Exit_Loop_Name");
if not (Arg_Kind = An_Exit_Statement) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Exit_Loop_Name",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
Result_Node := Sinfo.Name (Arg_Node);
if No (Result_Node) then
return Nil_Element;
else
return Node_To_Element_New (Node => Result_Node,
Starting_Element => Statement);
end if;
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Exit_Loop_Name");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Exit_Loop_Name",
Ex => Ex,
Arg_Element => Statement);
end Exit_Loop_Name;
--------------------------------------
-- For_Loop_Parameter_Specification --
--------------------------------------
function For_Loop_Parameter_Specification
(Statement : Asis.Statement)
return Asis.Declaration
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Res_Node : Node_Id;
Res_Kind : Internal_Element_Kinds := Not_An_Element;
begin
Check_Validity
(Statement, Package_Name & "For_Loop_Parameter_Specification");
if not (Arg_Kind = A_For_Loop_Statement) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "For_Loop_Parameter_Specification",
Wrong_Kind => Arg_Kind);
end if;
Res_Node := Iteration_Scheme (Node (Statement));
if Present (Iterator_Specification (Res_Node)) then
Res_Node := Iterator_Specification (Res_Node);
if Of_Present (Res_Node) then
Res_Kind := An_Element_Iterator_Specification;
else
Res_Kind := A_Generalized_Iterator_Specification;
end if;
elsif Present (Loop_Parameter_Specification (Res_Node)) then
Res_Node := Loop_Parameter_Specification (Res_Node);
Res_Kind := A_Loop_Parameter_Specification;
else
null;
pragma Assert (False);
end if;
return Node_To_Element_New (
Node => Res_Node,
Internal_Kind => Res_Kind,
Starting_Element => Statement);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name &
"For_Loop_Parameter_Specification");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "For_Loop_Parameter_Specification",
Ex => Ex,
Arg_Element => Statement);
end For_Loop_Parameter_Specification;
----------------
-- Goto_Label --
----------------
function Goto_Label
(Statement : Asis.Statement)
return Asis.Expression
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Goto_Label");
if not (Arg_Kind = A_Goto_Statement) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Goto_Label",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
return Node_To_Element_New (Node => Sinfo.Name (Arg_Node),
Starting_Element => Statement);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Goto_Label");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Goto_Label",
Ex => Ex,
Arg_Element => Statement);
end Goto_Label;
-----------
-- Guard --
-----------
function Guard (Path : Asis.Path) return Asis.Expression is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Path);
Arg_Node : Node_Id;
Result_Node : Node_Id;
begin
Check_Validity (Path, Package_Name & "Guard");
if not (Arg_Kind = A_Select_Path or else
Arg_Kind = An_Or_Path)
then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Guard",
Wrong_Kind => Arg_Kind);
end if;
if not (Nkind (Parent (R_Node (Path))) = N_Selective_Accept) then
return Nil_Element;
end if;
Arg_Node := Node (Path);
Result_Node := Condition (Arg_Node);
if No (Result_Node) then
return Nil_Element;
else
return Node_To_Element_New (Node => Result_Node,
Starting_Element => Path);
end if;
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Path,
Outer_Call => Package_Name & "Guard");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Guard",
Ex => Ex,
Arg_Element => Path);
end Guard;
------------------------
-- Handler_Statements --
------------------------
function Handler_Statements
(Handler : Asis.Exception_Handler;
Include_Pragmas : Boolean := False)
return Asis.Statement_List
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Handler);
Arg_Node : Node_Id;
begin
Check_Validity (Handler, Package_Name & "Handler_Statements");
if not (Arg_Kind = An_Exception_Handler) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Handler_Statements",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Handler);
return N_To_E_List_New
(List => Sinfo.Statements (Arg_Node),
Include_Pragmas => Include_Pragmas,
Starting_Element => Handler);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Handler,
Bool_Par => Include_Pragmas,
Outer_Call => Package_Name & "Handler_Statements");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Handler_Statements",
Ex => Ex,
Arg_Element => Handler,
Bool_Par_ON => Include_Pragmas);
end Handler_Statements;
--------------------------------------
-- Is_Call_On_Dispatching_Operation --
--------------------------------------
function Is_Call_On_Dispatching_Operation
(Call : Asis.Element)
return Boolean
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Call);
Called_Entity : Asis.Element;
begin
-- Just the first version, should be tested more carefully!
-- Is currently implemented as a secondary query based on
-- some queries from Asis.Extensions.
-- ??? !!!
-- Still depends on partially implemented queries from
-- Asis.Extensions
Check_Validity (Call, Package_Name & "Is_Call_On_Dispatching_Operation");
if not (Arg_Kind = A_Function_Call or else
Arg_Kind = A_Procedure_Call_Statement)
then
return False;
end if;
if Arg_Kind = A_Function_Call then
Called_Entity := Corresponding_Called_Function (Call);
else
Called_Entity := Corresponding_Called_Entity (Call);
end if;
if Is_Nil (Called_Entity) or else
(not Is_Dispatching_Operation (Called_Entity))
then
return False;
else
return True;
end if;
-- Owning_Type := Primary_Owner (Called_Entity);
-- Owning_Type := Type_Declaration_View (Owning_Type);
-- Owning_Type_Kind := Int_Kind (Owning_Type);
-- return
-- (Owning_Type_Kind = A_Tagged_Private_Type_Definition or else
-- Owning_Type_Kind = A_Private_Extension_Definition or else
-- Owning_Type_Kind = A_Derived_Record_Extension_Definition or else
-- Owning_Type_Kind = A_Tagged_Record_Type_Definition);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Call,
Outer_Call => Package_Name &
"Is_Call_On_Dispatching_Operation");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Is_Call_On_Dispatching_Operation",
Ex => Ex,
Arg_Element => Call);
end Is_Call_On_Dispatching_Operation;
----------------------
-- Is_Declare_Block --
----------------------
function Is_Declare_Block
(Statement : Asis.Statement)
return Boolean
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
First_Letter : Character;
-- the first character of the statement, should be either
-- B[egin] or D[eclare]
begin
-- If the argument represents the dummy block statement created by
-- the Asis_Declarations.Body_Block_Statement (obsolescent!)
-- function, the result will be True if and only if the
-- corresponding body has any declarative item on its own.
Check_Validity (Statement, Package_Name & "Is_Declare_Block");
if not (Arg_Kind = A_Block_Statement) then
return False;
end if;
Arg_Node := Node (Statement);
if Special_Case (Statement) = A_Dummy_Block_Statement then
if Present (Sinfo.Declarations (Arg_Node)) then
return True;
else
return False;
end if;
else
-- a "normal" block statement: here we should be more accurate, and
-- we cannot rely on "Present (Declarations (Arg_Node))" approach
-- because of the implicit label declarations
First_Letter := Source_Text (Get_Source_File_Index (
Sloc (Arg_Node))) -- the unit's text buffer
(Sloc (Arg_Node));
case First_Letter is
when 'b' | 'B' =>
return False;
when 'd' | 'D' =>
return True;
when others =>
-- Unexpected beginning of the block statement
raise Internal_Implementation_Error;
end case;
end if;
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Is_Declare_Block");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Is_Declare_Block",
Ex => Ex,
Arg_Element => Statement);
end Is_Declare_Block;
-------------------------
-- Is_Dispatching_Call --
-------------------------
function Is_Dispatching_Call (Call : Asis.Element) return Boolean is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Call);
Arg_Node : Node_Id := R_Node (Call);
begin
Check_Validity (Call, Package_Name & "Is_Dispatching_Call");
if not (Arg_Kind = A_Function_Call or else
Arg_Kind = A_Procedure_Call_Statement)
then
return False;
end if;
if Is_Prefix_Notation (Call)
and then
Nkind (Arg_Node) = N_Explicit_Dereference
and then
Is_Rewrite_Substitution (Arg_Node)
and then
Nkind (Original_Node (Arg_Node)) = N_Function_Call
then
Arg_Node := Prefix (Arg_Node);
end if;
if not (Nkind (Arg_Node) = N_Function_Call or else
Nkind (Arg_Node) = N_Procedure_Call_Statement)
then
-- this may be possible as a result of tree rewriting, but if we
-- have rewriting, we do not have a dispatching call, so:
return False;
else
return Present (Controlling_Argument (Arg_Node));
end if;
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Call,
Outer_Call => Package_Name & "Is_Dispatching_Call");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Is_Dispatching_Call",
Ex => Ex,
Arg_Element => Call);
end Is_Dispatching_Call;
----------------------
-- Is_Name_Repeated --
----------------------
function Is_Name_Repeated (Statement : Asis.Statement) return Boolean is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Last_Comp : Asis.Element;
S : Source_Ptr;
Result : Boolean;
begin
Check_Validity (Statement, Package_Name & "Is_Name_Repeated");
if not (Arg_Kind = A_Loop_Statement or else
Arg_Kind = A_While_Loop_Statement or else
Arg_Kind = A_For_Loop_Statement or else
Arg_Kind = A_Block_Statement or else
Arg_Kind = An_Accept_Statement)
then
Result := False;
end if;
if Arg_Kind = A_Loop_Statement or else
Arg_Kind = A_While_Loop_Statement or else
Arg_Kind = A_For_Loop_Statement or else
Arg_Kind = A_Block_Statement
then
Result := not Asis.Elements.Is_Nil (Statement_Identifier (Statement));
elsif Arg_Kind = An_Accept_Statement then
if Is_Nil (Accept_Body_Statements (Statement, True)) then
-- no statements - no "do .. end;" part - no "end"
-- to repeat the name after
Result := False;
else
Last_Comp := Get_Last_Component (Statement);
S := Set_Image_End (Last_Comp);
-- now S points to the last character (it for sure is ';')
-- of the last component (a statement, an exception
-- handler or pragma) in the accept statement.
-- First, we reset S to point onto the first character
-- after the final end of the accept statement:
-- the final "end" lexically is an identifier, so:
S := Next_Identifier (S);
S := S + 3;
-- the first character after "end"
S := Rightmost_Non_Blank (S);
-- and the final check - what follows the final "end"
if Get_Character (S) = ';' then
Result := False;
else
Result := True;
end if;
end if;
end if;
return Result;
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Is_Name_Repeated");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Is_Name_Repeated",
Ex => Ex,
Arg_Element => Statement);
end Is_Name_Repeated;
-----------------
-- Label_Names --
-----------------
function Label_Names
(Statement : Asis.Statement)
return Asis.Defining_Name_List
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
Parent_Node : Node_Id;
Labels_Number : Nat := 0; -- how many labels the statement has
Label_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Label_Names");
if not (Arg_Kind in Internal_Statement_Kinds) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Label_Names",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
-- First, process a special case when an infinite loop is programmed as
--
-- <<Target>> Stmt;
-- ...
-- goto Target;
--
-- If Stmt has exactly one label attached to it, the front-end rewrites
-- this construct as a subtree headed by N_Loop_Statement node
Parent_Node := Parent (R_Node (Statement));
if Nkind (Parent_Node) = N_Loop_Statement
and then
Is_Rewrite_Substitution (Parent_Node)
and then
Nkind (Original_Node (Parent_Node)) = N_Goto_Statement
and then
Arg_Node = First (Sinfo.Statements (Parent_Node))
then
return
(1 => Node_To_Element_New
(Node => Sinfo.Identifier (Parent_Node),
Internal_Kind => A_Defining_Identifier,
Starting_Element => Statement));
elsif Nkind (Arg_Node) = N_Goto_Statement
and then
Nkind (R_Node (Statement)) = N_Loop_Statement
and then
Is_Empty_List (Sinfo.Statements (R_Node (Statement)))
then
-- This is a pathological case of
--
-- <<Target>> goto Target;
return
(1 => Node_To_Element_New
(Node => Sinfo.Identifier (R_Node (Statement)),
Internal_Kind => A_Defining_Identifier,
Starting_Element => Statement));
end if;
if not Is_List_Member (Arg_Node) then
-- the accept statement in accept alternative, it cannot
-- have labels at all
return Nil_Element_List;
end if;
Label_Node := Prev (Arg_Node);
while Nkind (Label_Node) in N_Raise_xxx_Error loop
-- See B920-A06
Label_Node := Prev (Label_Node);
end loop;
while Nkind (Label_Node) = N_Label loop
Labels_Number := Labels_Number + 1;
Label_Node := Prev (Label_Node);
end loop;
-- Label_Node is not the Node of N_Label kind now
if Labels_Number = 0 then
return Nil_Element_List;
else
declare
Result_List : Asis.Element_List
(1 .. ASIS_Integer (Labels_Number));
begin
if Label_Node = Empty then
-- special case: the first statement in the statement
-- sequence is labeled
Label_Node := First (List_Containing (Arg_Node));
else
Label_Node := Next (Label_Node);
end if;
-- the first label attached to the statement and the number of
-- attached labels are obtained
for I in 1 .. ASIS_Integer (Labels_Number) loop
-- the order of labels is important !
Result_List (I) := Node_To_Element_New (
Node => Label_Node,
Internal_Kind => A_Defining_Identifier,
Starting_Element => Statement);
Label_Node := Next (Label_Node);
end loop;
return Result_List;
end;
end if;
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Label_Names");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Label_Names",
Ex => Ex,
Arg_Element => Statement);
end Label_Names;
---------------------
-- Loop_Statements --
---------------------
function Loop_Statements
(Statement : Asis.Statement;
Include_Pragmas : Boolean := False)
return Asis.Statement_List
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Loop_Statements");
if not (Arg_Kind = A_Loop_Statement or else
Arg_Kind = A_While_Loop_Statement or else
Arg_Kind = A_For_Loop_Statement)
then
Raise_ASIS_Inappropriate_Element
("Asis_Statement.Loop_Statements",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
return N_To_E_List_New
(List => Sinfo.Statements (Arg_Node),
Include_Pragmas => Include_Pragmas,
Starting_Element => Statement);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Bool_Par => Include_Pragmas,
Outer_Call => Package_Name & "Loop_Statements");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Loop_Statements",
Ex => Ex,
Arg_Element => Statement,
Bool_Par_ON => Include_Pragmas);
end Loop_Statements;
--------------------------
-- Qualified_Expression --
--------------------------
function Qualified_Expression
(Statement : Asis.Statement)
return Asis.Expression
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Qualified_Expression");
if not (Arg_Kind = A_Code_Statement) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Qualified_Expression",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
return Node_To_Element_New (
Node => Sinfo.Expression (Arg_Node),
Internal_Kind => A_Qualified_Expression,
Starting_Element => Statement);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Qualified_Expression");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Qualified_Expression",
Ex => Ex,
Arg_Element => Statement);
end Qualified_Expression;
----------------------
-- Raised_Exception --
----------------------
function Raised_Exception
(Statement : Asis.Statement)
return Asis.Expression
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
Result_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Raised_Exception");
if Arg_Kind not in A_Raise_Statement | A_Raise_Expression then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Raised_Exception",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
Result_Node := Sinfo.Name (Arg_Node);
if No (Result_Node) then
return Nil_Element;
else
return Node_To_Element_New (
Node => Result_Node,
Starting_Element => Statement);
end if;
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Raised_Exception");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Raised_Exception",
Ex => Ex,
Arg_Element => Statement);
end Raised_Exception;
------------------------
-- Requeue_Entry_Name --
------------------------
function Requeue_Entry_Name
(Statement : Asis.Statement)
return Asis.Name
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Requeue_Entry_Name");
if not (Arg_Kind = A_Requeue_Statement
or else
Arg_Kind = A_Requeue_Statement_With_Abort)
then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Requeue_Entry_Name",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
return Node_To_Element_New (Node => Sinfo.Name (Arg_Node),
Starting_Element => Statement);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Requeue_Entry_Name");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Requeue_Entry_Name",
Ex => Ex,
Arg_Element => Statement);
end Requeue_Entry_Name;
-----------------------
-- Return_Expression --
-----------------------
function Return_Expression
(Statement : Asis.Statement)
return Asis.Expression
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
Result_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Return_Expression");
if not (Arg_Kind = A_Return_Statement) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Return_Expression",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
Result_Node := Sinfo.Expression (Arg_Node);
if No (Result_Node) then
return Nil_Element;
else
return Node_To_Element_New (Node => Result_Node,
Starting_Element => Statement);
end if;
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Return_Expression");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Return_Expression",
Ex => Ex,
Arg_Element => Statement);
end Return_Expression;
----------------------------
-- Sequence_Of_Statements --
----------------------------
function Sequence_Of_Statements
(Path : Asis.Path;
Include_Pragmas : Boolean := False)
return Asis.Statement_List
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Path);
Arg_Node : Node_Id;
Result_List : List_Id;
-- for processing An_If_Path, An_Elsif_Path, An_Else_Path, A_Case_Path
-- and A_Then_Abort_Path arguments; the node of such argument has
-- regular structure
-- local variables for processing A_Select_Path and An_Or_Path
-- arguments; the node of such arguments has irregular structure
Statement_List : List_Id;
First_Element : Asis.Element := Nil_Element;
Alternative_Node_Kind : Node_Kind;
begin
Check_Validity (Path, Package_Name & "Sequence_Of_Statements");
if not (Arg_Kind in Internal_Statement_Path_Kinds) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Sequence_Of_Statements",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Path);
case Arg_Kind is
when An_If_Path | An_Elsif_Path =>
Result_List := Then_Statements (Arg_Node);
when An_Else_Path =>
Result_List := Else_Statements (Arg_Node);
when A_Case_Path =>
Result_List := Sinfo.Statements (Arg_Node);
when A_Then_Abort_Path =>
Result_List := Sinfo.Statements (Arg_Node);
when A_Select_Path | An_Or_Path =>
Alternative_Node_Kind := Nkind (Arg_Node);
if Alternative_Node_Kind = N_Terminate_Alternative then
-- special case: result list contains only one dummy terminate
-- statement; no tree traversing needed: the result is based
-- on the same node as the argument
return Asis.Statement_List'(
1 => Node_To_Element_New (
Node => Arg_Node,
Internal_Kind => A_Terminate_Alternative_Statement,
Starting_Element => Path));
else
-- this alternative corresponds to the situation of
-- N_Accept_Alternative, N_Delay_Alternative,
-- N_Entry_Call_Alternative or N_Triggering_Alternative
-- forming the first element of the element list to be
-- returned:
if Alternative_Node_Kind = N_Accept_Alternative then
First_Element :=
Node_To_Element_New (
Node => Accept_Statement (Arg_Node),
Internal_Kind => An_Accept_Statement,
Starting_Element => Path);
elsif Alternative_Node_Kind = N_Delay_Alternative then
First_Element :=
Node_To_Element_New (
Node => Delay_Statement (Arg_Node),
Starting_Element => Path);
elsif Alternative_Node_Kind = N_Entry_Call_Alternative then
First_Element :=
Node_To_Element_New (
Node => Entry_Call_Statement (Arg_Node),
Starting_Element => Path);
elsif Alternative_Node_Kind = N_Triggering_Alternative then
First_Element :=
Node_To_Element_New (
Node => Triggering_Statement (Arg_Node),
Starting_Element => Path);
end if;
-- the rest of the returned list:
Statement_List := Sinfo.Statements (Arg_Node);
return Asis.Statement_List'(1 => First_Element) &
N_To_E_List_New
(List => Statement_List,
Include_Pragmas => Include_Pragmas,
Starting_Element => Path);
end if;
when others =>
null;
end case;
return N_To_E_List_New (List => Result_List,
Include_Pragmas => Include_Pragmas,
Starting_Element => Path);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Path,
Bool_Par => Include_Pragmas,
Outer_Call => Package_Name & "Sequence_Of_Statements");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Sequence_Of_Statements",
Ex => Ex,
Arg_Element => Path,
Bool_Par_ON => Include_Pragmas);
end Sequence_Of_Statements;
--------------------------
-- Statement_Identifier --
--------------------------
function Statement_Identifier
(Statement : Asis.Statement)
return Asis.Defining_Name
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "Statement_Identifier");
if not (Arg_Kind = A_Loop_Statement or else
Arg_Kind = A_While_Loop_Statement or else
Arg_Kind = A_For_Loop_Statement or else
Arg_Kind = A_Block_Statement)
then
Raise_ASIS_Inappropriate_Element
("Asis_Statement.Statement_Identifier",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
if Special_Case (Statement) = A_Dummy_Block_Statement or else
Has_Created_Identifier (Arg_Node)
then
return Nil_Element;
else
return Node_To_Element_New (
Node => Sinfo.Identifier (Arg_Node),
Internal_Kind => A_Defining_Identifier,
Starting_Element => Statement);
end if;
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "Statement_Identifier");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Statement_Identifier",
Ex => Ex,
Arg_Element => Statement);
end Statement_Identifier;
---------------------
-- Statement_Paths --
---------------------
function Statement_Paths
(Statement : Asis.Statement;
Include_Pragmas : Boolean := False)
return Asis.Path_List
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
Path_List_Length : ASIS_Integer; -- Length of returned list
Elsif_Or_Length : ASIS_Integer; -- Number of Elsif or Or paths
Else_Present : Boolean;
begin
Check_Validity (Statement, Package_Name & "Statement_Paths");
if not (Arg_Kind = An_If_Statement or else
Arg_Kind = A_Case_Statement or else
Arg_Kind = A_Selective_Accept_Statement or else
Arg_Kind = A_Timed_Entry_Call_Statement or else
Arg_Kind = A_Conditional_Entry_Call_Statement or else
Arg_Kind = An_Asynchronous_Select_Statement)
then
Raise_ASIS_Inappropriate_Element
(Package_Name & "Statement_Paths",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
case Arg_Kind is
when An_If_Statement =>
Path_List_Length := 1; -- An_If_Path
Else_Present := Present (Else_Statements (Arg_Node));
if Else_Present then
Path_List_Length := Path_List_Length + 1;
end if;
if Present (Elsif_Parts (Arg_Node)) then
Elsif_Or_Length := ASIS_Integer
(List_Length (Elsif_Parts (Arg_Node)));
else
Elsif_Or_Length := 0;
end if;
Path_List_Length := Path_List_Length + Elsif_Or_Length;
declare
Path_List : Asis.Element_List (1 .. Path_List_Length);
-- Element List to be returned by the function
begin
Path_List (1) := Node_To_Element_New
(Node => Arg_Node,
Internal_Kind => An_If_Path,
Starting_Element => Statement);
Path_List (2 .. Elsif_Or_Length + 1) :=
N_To_E_List_New
(List => Elsif_Parts (Arg_Node),
Internal_Kind => An_Elsif_Path,
Starting_Element => Statement);
if Else_Present then
Path_List (Path_List_Length) := Node_To_Element_New
(Node => Arg_Node,
Internal_Kind => An_Else_Path,
Starting_Element => Statement);
end if;
return Path_List;
end;
when A_Case_Statement =>
-- only here the value of Include_Pragmas is important
return N_To_E_List_New
(List => Alternatives (Arg_Node),
Include_Pragmas => Include_Pragmas,
Starting_Element => Statement);
when A_Selective_Accept_Statement =>
Elsif_Or_Length := ASIS_Integer
(List_Length (Select_Alternatives (Arg_Node)));
Path_List_Length := Elsif_Or_Length;
Else_Present := Present (Else_Statements (Arg_Node));
if Else_Present then
Path_List_Length := Path_List_Length + 1;
end if;
declare
Path_List : Asis.Element_List (1 .. Path_List_Length);
-- Element List to be returned by the function
begin
Path_List (1 .. Elsif_Or_Length) :=
N_To_E_List_New
(List => Select_Alternatives (Arg_Node),
Starting_Element => Statement);
if Else_Present then
Path_List (Path_List_Length) := Node_To_Element_New
(Node => Arg_Node,
Internal_Kind => An_Else_Path,
Starting_Element => Statement);
end if;
return Path_List;
end;
when A_Timed_Entry_Call_Statement =>
return Asis.Path_List'(
1 => Node_To_Element_New (
Node => Entry_Call_Alternative (Arg_Node),
Internal_Kind => A_Select_Path,
Starting_Element => Statement),
2 => Node_To_Element_New (
Node => Delay_Alternative (Arg_Node),
Internal_Kind => An_Or_Path,
Starting_Element => Statement));
when A_Conditional_Entry_Call_Statement =>
return Asis.Path_List'(
1 => Node_To_Element_New (
Node => Entry_Call_Alternative (Arg_Node),
Internal_Kind => A_Select_Path,
Starting_Element => Statement),
2 => Node_To_Element_New (
Node => Arg_Node,
Internal_Kind => An_Else_Path,
Starting_Element => Statement));
when An_Asynchronous_Select_Statement =>
return Asis.Path_List'(
1 => Node_To_Element_New (
Node => Triggering_Alternative (Arg_Node),
Internal_Kind => A_Select_Path,
Starting_Element => Statement),
2 => Node_To_Element_New (
Node => Abortable_Part (Arg_Node),
Internal_Kind => A_Then_Abort_Path,
Starting_Element => Statement));
when others =>
raise Internal_Implementation_Error;
-- this choice can never be reached, see the condition
-- for defining the appropriate element
end case;
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Bool_Par => Include_Pragmas,
Outer_Call => Package_Name & "Statement_Paths");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Statement_Paths",
Ex => Ex,
Arg_Element => Statement,
Bool_Par_ON => Include_Pragmas);
end Statement_Paths;
---------------------
-- While_Condition --
---------------------
function While_Condition
(Statement : Asis.Statement)
return Asis.Expression
is
Arg_Kind : constant Internal_Element_Kinds := Int_Kind (Statement);
Arg_Node : Node_Id;
begin
Check_Validity (Statement, Package_Name & "While_Condition");
if not (Arg_Kind = A_While_Loop_Statement) then
Raise_ASIS_Inappropriate_Element
(Package_Name & "While_Condition",
Wrong_Kind => Arg_Kind);
end if;
Arg_Node := Node (Statement);
return Node_To_Element_New (
Node => Condition (Iteration_Scheme (Arg_Node)),
Starting_Element => Statement);
exception
when ASIS_Inappropriate_Element =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information
(Argument => Statement,
Outer_Call => Package_Name & "While_Condition");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "While_Condition",
Ex => Ex,
Arg_Element => Statement);
end While_Condition;
end Asis.Statements;
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