* aspects.adb Add an entry for aspect Ghost in table
Canonical_Aspect.
* aspects.ads Add an entry for aspect Ghost in tables
Aspect_Argument, Aspect_Delay, Aspect_Id, Aspect_Names and
Implementation_Defined_Aspect.
* einfo.adb: Flags 277 and 278 are now in use.
(Is_Checked_Ghost_Entity): New routine.
(Is_Ghost_Entity): Removed.
(Is_Ghost_Subprogram): Removed.
(Is_Ignored_Ghost_Entity): New routine.
(Set_Is_Checked_Ghost_Entity): New routine.
(Set_Is_Ignored_Ghost_Entity): New routine.
(Write_Entity_Flags): Output flags Is_Checked_Ghost_Entity and
Is_Ignored_Ghost_Entity.
* einfo.ads: Add new flags Is_Checked_Ghost_Entity
and Is_Ignored_Ghost_Entity along with usage in nodes.
(Is_Checked_Ghost_Entity): New routine and pragma Inline.
(Is_Ghost_Entity): Removed along with synthesized flag
description and usage in nodes.
(Is_Ghost_Subprogram): Removed along with synthesized flag description
and usage in nodes.
(Is_Ignored_Ghost_Entity): New routine and pragma Inline.
(Set_Is_Checked_Ghost_Entity): New routine and pragma Inline.
(Set_Is_Ignored_Ghost_Entity): New routine and pragma Inline.
* freeze.adb (Freeze_Entity): A Ghost type cannot be effectively
volatile.
* par-prag.adb Pragma Ghost does not need special handling by
the parser.
* repinfo.adb (List_Mechanisms): Remove the entry for convention Ghost.
* sem_attr.adb (Analyze_Access_Attribute): Remove obsolete check.
* sem_ch3.adb (Analyze_Full_Type_Declaration): Mark
the type as Ghost when its enclosing context is Ghost.
(Analyze_Incomplete_Type_Decl): Mark the type as Ghost when
its enclosing context is Ghost.
(Analyze_Number_Declaration): Mark the number as Ghost when its
enclosing context is Ghost.
(Analyze_Object_Declaration): Mark the object as Ghost when its
enclosing context is Ghost. Verify the Ghost policy between
initial declaration and completion of a deferred constant.
(Analyze_Object_Contract): A Ghost variable cannot be effectively
volatile, imported or exported.
(Build_Derived_Record_Type): Mark a type extension as Ghost when it
implements a Ghost interface.
(Build_Record_Type): Inherit volatility and "ghostness" from
the parent type.
(Check_Completion): A Ghost entity declared
in a non-Ghost package does not require completion in a body.
(Implements_Ghost_Interface): New routine.
(Process_Full_View): Inherit "ghostness" from the partial view. Verify
the Ghost policy between the partial and full views. Verify the
completion of a Ghost type extension.
* sem_ch4.adb (Check_Ghost_Subprogram_Call): Removed.
* sem_ch5.adb (Analyze_Assignment): Analyze the left hand side first.
* sem_ch6.adb (Analyze_Abstract_Subprogram_Declaration): Mark
the subprogram as Ghost when its enclosing context is Ghost.
(Analyze_Generic_Subprogram_Body): Mark the generic body as Ghost
when its enclosing context is Ghost. Verify the Ghost policy
between the spec and body.
(Analyze_Subprogram_Body_Helper): Mark the body as Ghost when its
enclosing context is Ghost. Verify the Ghost policy between the spec
and body.
(Check_Conformance): A Ghost subprogram profile and a non-Ghost
subprogram profile are not subtype conformant.
(Convention_Of): Removed.
* sem_ch7.adb (Analyze_Package_Body_Helper): Inherit the
"ghostness" from the spec. Verify the Ghost policy between
the spec and body.
(Analyze_Private_Type_Declaration): Mark the type as Ghost when its
enclosing context is Ghost.
(Requires_Completion_In_Body): New routine.
(Unit_Requires_Body): Use Requires_Completion_In_Body.
(Unit_Requires_Body_Info): Rename formal parameter P to Pack_Id, update
comment on usage and all uses of P in the body. Use
Requires_Completion_In_Body.
* sem_ch7.ads (Unit_Requires_Body): Rename formal parameter P
to Pack_Id, update comment on usage and all uses of P in the body.
* sem_ch8.adb (Analyze_Exception_Renaming): Inherit the "ghostness"
from the renamed excention.
(Analyze_Generic_Renaming): Inherit the "ghostness" from the
renamed generic subprogram.
(Analyze_Object_Renaming): Inherit the "ghostness" from the renamed
object.
(Analyze_Package_Renaming): Inherit the "ghostness" from the
renamed package.
(Analyze_Subprogram_Renaming): Inherit the "ghostness" from the
renamed subprogram.
* sem_ch11.adb (Analyze_Exception_Declaration): Mark an exception
as Ghost when its enclosing context is Ghost.
* sem_ch12.adb (Analyze_Generic_Package_Declaration,
Analyze_Generic_Subprogram_Declaration): Mark an exception as
Ghost when its enclosing context is Ghost.
(Preanalyze_Actuals): Remove obsolete check.
* sem_ch13.adb (Analyze_Aspect_Specifications): Add processing
for aspect Ghost.
(Check_Aspect_At_Freeze_Point): Aspects
Depends and Global do no need special checking at freeze point.
(Insert_After_SPARK_Mode): Update comment on usage.
* sem_mech.adb (Set_Mechanisms): Remove the entry for convention Ghost.
* sem_prag.adb Add an entry for pragma Ghost in table Sig_Flags.
(Analyze_Abstract_State): Update the grammar of the pragma. Add
formal parameter Pack_Id along with comment on usage. Mark an
abstract state as Ghost when its enclosing context is Ghost. Add
processing for option Ghost.
(Analyze_Constituent): Verify
that a Ghost abstract state is refined by Ghost constituents.
(Analyze_Pragma): "Ghost" is now a valid policy. Add checks
related to the use and placement of Check_Policy Ghost. Add
processing for pragma Ghost.
(Check_Ghost_Constituent): New routine.
(Is_Valid_Assertion_Kind): "Ghost" is now a valid assertion.
(Process_Convention): Remove obsolete check.
(Set_Convention_From_Pragma): Remove the processing for convention
Ghost.
* sem_res.adb (Check_Ghost_Context): New routine.
(Resolve_Call): Verify that a reference to a Ghost entity appears in a
suitable context. Verify the Ghost polity between point of declaration
and point of use.
(Resolve_Entity_Name): Verify that a reference to
a Ghost entity appears in a suitable context. Verify the Ghost
polity between point of declaration and point of use.
* sem_util.adb (Check_Ghost_Completion): New routine.
(Check_Ghost_Derivation): New routine.
(Incomplete_Or_Partial_View): New routine.
(Incomplete_Or_Private_View): Removed.
(Is_Ghost_Entity): New routine.
(Is_Ghost_Statement_Or_Pragma): New routine.
(Is_Subject_To_Ghost): New routine.
(Policy_In_Effect): New routine.
(Set_Is_Ghost_Entity): New routine.
(Within_Ghost_Scope): New routine.
* sem_util.ads (Check_Ghost_Completion): New routine.
(Check_Ghost_Derivation): New routine.
(Incomplete_Or_Partial_View): New routine.
(Incomplete_Or_Private_View): Removed.
(Is_Ghost_Entity): New routine.
(Is_Ghost_Statement_Or_Pragma): New routine.
(Is_Subject_To_Ghost): New routine.
(Policy_In_Effect): New routine.
(Set_Is_Ghost_Entity): New routine.
(Within_Ghost_Scope): New routine.
* snames.adb-tmpl (Get_Convention_Id): Remove the entry for
convention Ghost.
(Get_Convention_Name): Remove the entry for convention Ghost.
* snames.ads-tmpl Remove the convention id for Ghost. Add a
pragma id for Ghost.
2014-10-31 Sergey Rybin <rybin@adacore.com frybin>
* gnat_ugn.texi: Add description of --RTS option for ASIS tools.
From-SVN: r216981
