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Text File | 1996-09-28 | 71KB | 1,892 lines

------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- A T R E E -- -- -- -- S p e c -- -- -- -- $Revision: 1.95 $ -- -- -- -- Copyright (c) 1992,1993,1994,1995 NYU, All Rights Reserved -- -- -- -- The GNAT library is free software; you can redistribute it and/or modify -- -- it under terms of the GNU Library General Public License as published by -- -- the Free Software Foundation; either version 2, or (at your option) any -- -- later version. The GNAT library 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. See the GNU -- -- Library General Public License for more details. You should have -- -- received a copy of the GNU Library General Public License along with -- -- the GNAT library; see the file COPYING.LIB. If not, write to the Free -- -- Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. -- -- -- ------------------------------------------------------------------------------ with Alloc; use Alloc; with Sinfo; use Sinfo; with Einfo; use Einfo; with Types; use Types; with Snames; use Snames; with System; use System; with Table; with Uintp; use Uintp; with Urealp; use Urealp; package Atree is -- This package defines the format of the tree used to represent the Ada -- program internally. Syntactic and semantic information is combined in -- this tree. There is no separate symbol table structure. -- WARNING: There is a C version of this package. Any changes to this -- source file must be properly reflected in the C header file tree.h -- Package Atree defines the basic structure of the tree and its nodes and -- provides the basic abstract interface for manipulating the tree. Two -- other packages use this interface to define the representation of Ada -- programs using this tree format. The package Sinfo defines the basic -- representation of the syntactic structure of the program, as output -- by the parser. The package Entity_Info defines the semantic information -- which is added to the tree nodes that represent declared entities (i.e. -- the information which might typically be described in a separate symbol -- table structure. -- The front end of the compiler first parses the program and generates a -- tree that is simply a syntactic representation of the program in abstract -- syntax tree format. Subsequent processing in the front end traverses the -- tree, transforming it in various ways and adding semantic information. ---------------------------------------- -- Definitions of Fields in Tree Node -- ---------------------------------------- -- The representation of the tree is completely hidden, using a functional -- interface for accessing and modifying the contents of nodes. Logically -- a node contains a number of fields, much as though the nodes were -- defined as a record type. The fields in a node are as follows: -- Nkind Indicates the kind of the node. This field is present -- in all nodes. The type is Node_Kind, which is declared -- in the package Sinfo. -- Sloc Location (Source_Ptr) of the corresponding token -- in the Source buffer. The individual node definitions -- show which token is referenced by this pointer. -- In_List A flag used to indicate if the node is a member -- of a node list. -- Rewrite_Sub A flag set if the node has been rewritten using -- the Rewrite_Substitute_Tree procedure. The original -- value of the node is retrievable with Original_Node. -- Rewrite_Ins A flag set if a node is marked as a rewrite inserted -- node as a result of a call to Mark_Rewrite_Insertion. -- Paren_Count A 2-bit count used on expression nodes to indicate -- the level of parentheses. Up to 3 levels can be -- accomodated. Anything more than 3 levels is treated -- as 3 levels (conformance tests that complain about -- this are hereby deemed pathological!) Set to zero -- for non-subexpression nodes. -- Comes_From_Source -- This flag is present in all nodes. It is set if the -- node is built by the scanner or parser, and clear if -- the node is built by the analyzer or expander. It -- indicates that the node corresponds to a construct -- that appears in the original source program. -- Field1 -- Field2 -- Field3 -- Field4 -- Field5 Five fields holding Union_Id values -- Char_CodeN Synonym for FieldN typed as Char_Code -- ElistN Synonym for FieldN typed as Elist_Id -- ListN Synonym for FieldN typed as List_Id -- NameN Synonym for FieldN typed as Name_Id -- NodeN Synonym for FieldN typed as Node_Id -- StrN Synonym for FieldN typed as String_Id -- UintN Synonym for FieldN typed as Uint -- UrealN Synonym for FieldN typed as Ureal -- Note: the actual usage of FieldN (i.e. whether it contains a Char_Code, -- Elist_Id, List_Id, Name_Id, Node_Id, String_Id, Uint or Ureal), depends -- on the value in Nkind. Generally the access to this field is always via -- the functional interface, so the field names Char_CodeN, ElistN, ListN, -- NameN, NodeN, StrN, UintN and UrealN are used only in the bodies of the -- access functions (i.e. in the bodies of Sinfo and Einfo). These access -- functions contain debugging code that checks that the use is consistent -- with Nkind and Ekind values. -- However, in specialized circumstances (examples are the circuit in -- generic instantiation to copy trees, and in the tree dump routine), -- it is useful to be able to do untyped traversals, and an internal -- package in Atree allows for direct untyped accesses in such cases. -- Flag1 Seventeen Boolean flags (use depends on Nkind and -- Flag3 Ekind, as described for Fieldn). Again the access -- Flag4 is usually via subprograms in Sinfo and Einfo which -- Flag5 provide high-level synonyms for these flags, and -- Flag6 contain debugging code that checks that the values -- Flag7 in Nkind and Ekind are appropriate for the access. -- Flag8 -- Flag9 Note that Flag2 is missing from the list (it is used -- Flag10 for Comes_From_Source, a historical accident!) -- Flag11 -- Flag12 -- Flag13 -- Flag14 -- Flag15 -- Flag16 -- Flag17 -- Flag18 -- Link Pointer to parent node, i.e. node which points to -- the node which references this field. The parent -- field can only be set in a node which is not in -- a list, or in a list header. The parent field of -- nodes that are in a list is automatically set to -- the parent of the list header, and cannot be -- explicitly set. This field is considered private -- to Atree. -- The following additional fields are present in extended nodes used -- for entities (Nkind in N_Entity). -- Ekind Entity type. This field indicates the type of the -- entity, it is of type Entity_Kind which is defined -- in package Einfo. -- Flag19 94 additional flags -- ... -- Flag112 -- Convention Entity convention (Convention_Id value) -- Field6 Additional Union_Id value stored in tree -- Node6 Synonym for Field6 typed as Node_Id -- Elist6 Synonym for Field6 typed as Elist_Id -- Uint6 Synonym for Field6 typed as Uint -- Similar definitions for Field7 to Field18 (and Node7-Node22, -- Elist7-Elist22, Uint7-Uint22, Ureal7-Ureal22). Note that not -- all these functions are defined, only the ones that are actually -- used by Einfo. type Paren_Count_Type is mod 4; for Paren_Count_Type'Size use 2; -- Type used for Paren_Count field function Last_Node_Id return Node_Id; pragma Inline (Last_Node_Id); -- Returns Id of last allocated node Id function Nodes_Address return System.Address; -- Return address of Nodes table (used in Back_End for Gigi call) function Num_Nodes return Nat; -- Total number of nodes allocated, where an entity counts as a single -- node. This count is incremented every time a node or entity is -- allocated, and decremented every time a node or entity is deleted. ----------------------- -- Use of Empty Node -- ----------------------- -- The special Node_Id Empty is used to mark missing fields. Whenever the -- syntax has an optional component, then the corresponding field will be -- set to Empty if the component is missing. -- Note: Empty is not used to describe an empty list. Instead in this -- case the node field contains a list which is empty, and these cases -- should be distinguished (essentially from a type point of view, Empty -- is a Node, and is thus not a list). -- Note: Empty does in fact correspond to an allocated node. Only the -- Nkind field of this node may be referenced. It contains N_Empty, which -- uniquely identifies the empty case. This allows the Nkind field to be -- dereferenced before the check for Empty which is sometimes useful. ------------------------------- -- Default Setting of Fields -- ------------------------------- -- Nkind is set to N_Unused_At_Start -- Ekind is set to E_Void -- Sloc is always set, there is no default value -- Field1-5 fields are set to Empty -- Field6-22 fields in extended nodes are set to Empty -- Parent is set to Empty -- All Boolean flag fields are set to False -- Note: the value Empty is used in Field1-Field17 to indicate a null node. -- The usage varies. The common uses are to indicate absence of an -- optional clause or a completely unused Field1-17 field. ------------------------------------- -- Use of Synonyms for Node Fields -- ------------------------------------- -- A subpackage Atree.Unchecked_Access provides routines for reading and -- writing the fields defined above (Field1-17, Node1-17, Flag1-88 etc). -- These unchecked access routines can be used for untyped traversals. In -- In addition they are used in the implementations of the Sinfo and -- Einfo packages. These packages both provide logical synonyms for -- the generic fields, together with an appropriate set of access routines. -- Normally access to information within tree nodes uses these synonyms, -- providing a high level typed interface to the tree information. -------------------------------------------------- -- Node Allocation and Modification Subprograms -- -------------------------------------------------- -- Generally the parser builds the tree and then it is further decorated -- (e.g. by setting the entity fields), but not fundamentally modified. -- However, there are cases in which the tree must be restructured by -- adding and rearranging nodes, as a result of disambiguating cases -- which the parser could not parse correctly, and adding additional -- semantic information (e.g. making constraint checks explicit). The -- following subprograms are used for constructing the tree in the first -- place, and then for subsequent modifications as required procedure Initialize; -- Called at the start of compilation to initialize the allocation of -- the node and list tables and make the standard entries for Empty, -- Error and Error_List. Note that Initialize must not be called if -- Tree_Read is used. procedure Tree_Read; -- Initializes internal tables from current tree file using Tree_Read. -- Note that Initialize should not be called if Tree_Read is used. -- Tree_Read includes all necessary initialization. procedure Tree_Write; -- Writes out internal tables to current tree file using Tree_Write function New_Node (New_Node_Kind : Node_Kind; New_Sloc : Source_Ptr) return Node_Id; -- Allocates a completely new node with the given node type and source -- location values. All other fields are set to their standard defaults: -- -- Empty for all Fieldn fields -- False for all Flagn fields -- -- The usual approach is to build a new node using this function and -- then, using the value returned, use the Set_xxx functions to set -- fields of the node as required. New_Node can only be used for -- non-entity nodes, i.e. it never generates an extended node. function New_Entity (New_Node_Kind : Node_Kind; New_Sloc : Source_Ptr) return Entity_Id; -- Similar to New_Node, except that it is used only for entity nodes -- and returns an extended node. procedure Set_Comes_From_Source_Default (Default : Boolean); -- Sets value of Comes_From_Source flag to be used in all subsequent -- New_Node and New_Entity calls until another call to this procedure -- changes the default. function Has_Extension (N : Node_Id) return Boolean; pragma Inline (Has_Extension); -- Returns True if the given node has an extension (i.e. was created by -- a call to New_Entity rather than New_Node, and Nkind is in N_Entity) procedure Change_Node (N : Node_Id; New_Node_Kind : Node_Kind); -- This procedure replaces the given node by setting its Nkind field to -- the indicated value and resetting all other fields to their default -- values except for Sloc, which is unchanged, and the Parent pointer -- and list links, which are also unchanged. All other information in -- the original node is lost. The new node has an extension if the -- original node had an extension. procedure Copy_Node (Source : Node_Id; Destination : Node_Id); -- Copy the entire contents of the source node to the destination node. -- The contents of the source node is not affected. If the source node -- has an extension, then the destination must have an extension also. -- The parent pointer of the destination and its list link, if any, are -- not affected by the copy. Note that parent pointers of descendents -- are not adjusted, so the descendents of the destination node after -- the Copy_Node is completed have dubious parent pointers. function New_Copy (Source : Node_Id) return Node_Id; -- This function allocates a completely new node, and then initializes -- it by copying the contents of the source node into it. The contents -- of the source node is not affected. The target node is always marked -- as not being in a list (even if the source is a list member). The -- new node will have an extension if the source has an extension. -- New_Copy (Empty) returns Empty and New_Copy (Error) returns Error. -- Note that, unlike New_Copy_Tree, New_Copy does not recursively copy any -- descendents, so in general parent pointers are not set correctly for -- the descendents of the copied node. Both normal and extended nodes -- (entities) may be copied using New_Copy. function Relocate_Node (Source : Node_Id) return Node_Id; -- Source is a non-entity node that is to be relocated. A new node is -- allocated and the contents of Source are copied to this node using -- Copy_Node. The parent pointers of descendents of the node are then -- adjusted to point to the relocated copy. The original node is not -- modified, but the parent pointers of its descendents are no longer -- valid. This routine is used in conjunction with the tree rewrite -- routines (see descriptions of Replace/Rewrite_Substitute_Tree) -- Note that the resulting node has the same parent as the source -- node, and is thus still attached to the tree. It is valid for -- Source to be Empty, in which case Relocate_Node simply returns -- Empty as the result. function New_Copy_Tree (Source : Node_Id) return Node_Id; -- Given a node that is the root of a subtree, Copy_Tree copies the entire -- syntactic subtree, including recursively any descendents whose parent -- field references a copied node (descendents not linked to a copied node -- by the parent field are not copied, instead the copied tree references -- the same descendent as the original in this case, which is appropriate -- for non-syntactic fields such as Etype). The parent pointers in the -- copy are properly set. Copy_Tree (Empty/Error) returns Empty/Error. -- The one exception to the rule of not copying semantic fields is that -- any implicit types attached to the subtree are duplicated, so that -- the copy contains a distinct set of implicit type entities. function New_Copy_With_Replacement (Source : Node_Id; Map : Elist_Id) return Node_Id; -- Variant of New_Copy_Tree, used for copying derived record declarations. -- Map is an association between the components of the parent record and -- the derived record. As the original tree is copied, all references to -- the old entities are replaced with references to the new entities. The -- Itypes of the original declaration are similarly mapped into new -- Itypes, in the course of making the copy. function Copy_Original_Tree (Source : Node_Id) return Node_Id; -- Does the same thing as Copy_Separate_Tree, except for a substituted -- tree and for parents of field copies. For a substituted tree we copy -- the corresponding original tree. Each copy is also set as parent of its -- field copies. The main purpose of this function is to produce a good -- copy according to the specification of Sprint_Node_Pure_Ada as defined -- in Sprint. function Copy_Separate_Tree (Source : Node_Id) return Node_Id; -- Given a node that is the root of a subtree, Copy_Separate_Tree copies -- the entire syntactic subtree, including recursively any descendants -- whose parent field references a copied node (descendants not linked to -- a copied node by the parent field are also copied.) The parent pointers -- in the copy are properly set. Copy_Separate_Tree (Empty/Error) returns -- Empty/Error. The semantic fields are not copied and the new subtree -- does not share any entity with source subtree. -- But the code *does* copy semantic fields, and the description above -- is in any case unclear on this point ??? (RBKD) procedure Exchange_Entities (E1 : Entity_Id; E2 : Entity_Id); -- Exchange the contents of two entities. The parent pointers are switched -- as well as the Defining_Identifier fields in the parents, so that the -- entities point correctly to their original parents. The effect is thus -- to leave the tree completely unchanged in structure, except that the -- entity ID values of the two entities are interchanged. Neither of the -- two entities may be list members. procedure Delete_Node (Node : Node_Id); -- The node, which must not be a list member, is deleted from the tree -- an its type is set to N_Void. It is an error (not necessarily detected) -- to reference this node after it has been deleted. The implementation of -- the body of Atree is free to reuse the node to satisfy future node -- allocation requests, but is not required to do so. function Extend_Node (Node : Node_Id) return Node_Id; -- This function returns a copy of its input node with an extension -- added. The fields of the extension are set to Empty. Due to the way -- extensions are handled (as two consecutive array elements), it may -- be necessary to reallocate the node, so that the returned value is -- not the same as the input value, but where possible the returned -- value will be the same as the input value (i.e. the extension will -- occur in place). It is the caller's responsibility to ensure that -- any pointers to the original node are appropriately updated. This -- function is used only by Sinfo.CN to change nodes into their -- corresponding entities, which is why it is in Unchecked_Access. --------------------------- -- Node Access Functions -- --------------------------- -- The following functions return the contents of the indicated field of -- the node referenced by the argument, which is a Node_Id. function Nkind (N : Node_Id) return Node_Kind; pragma Inline (Nkind); function Ekind (N : Node_Id) return Entity_Kind; pragma Inline (Ekind); function Comes_From_Source (N : Node_Id) return Boolean; pragma Inline (Comes_From_Source); function Sloc (N : Node_Id) return Source_Ptr; pragma Inline (Sloc); function Paren_Count (N : Node_Id) return Paren_Count_Type; pragma Inline (Paren_Count); function Convention (N : Node_Id) return Convention_Id; pragma Inline (Convention); function Parent (N : Node_Id) return Node_Id; pragma Inline (Parent); -- Returns the parent of a node if the node is not a list member, or -- else the parent of the list containing the node if the node is a -- list member. function No (N : Node_Id) return Boolean; pragma Inline (No); -- Tests given Id for equality with the Empty node. This allows notations -- like "if No (Variant_Part)" as opposed to "if Variant_Part = Empty". function Present (N : Node_Id) return Boolean; pragma Inline (Present); -- Tests given Id for inequality with the Empty node. This allows notations -- like "if Present (Statement)" as opposed to "if Statement /= Empty". ---------------------------- -- Node Update Procedures -- ---------------------------- -- The following functions set a specified field in the node whose Id is -- passed as the first argument. The second parameter is the new value -- to be set in the specified field. Note that Set_Nkind is in the next -- section, since its use is restricted. procedure Set_Ekind (N : Node_Id; Val : Entity_Kind); pragma Inline (Set_Ekind); procedure Set_Sloc (N : Node_Id; Val : Source_Ptr); pragma Inline (Set_Sloc); procedure Set_Paren_Count (N : Node_Id; Val : Paren_Count_Type); pragma Inline (Set_Paren_Count); procedure Set_Convention (N : Node_Id; Val : Convention_Id); pragma Inline (Set_Convention); procedure Set_Parent (N : Node_Id; Val : Node_Id); pragma Inline (Set_Parent); --------------------------- -- Tree Rewrite Routines -- --------------------------- -- During the compilation process it is necessary in a number of situations -- to rewrite the tree. In some cases, such rewrites do not affect the -- structure of the tree, for example, when an indexed component node is -- replaced by the corresponding call node (the parser cannot distinguish -- between these two cases). -- In other situations, the rewrite does affect the structure of the -- tree. Examples are the replacement of a generic instantiation by the -- instantiated spec and body, and the static evaluation of expressions. -- If such structural modifications are done by the expander, there are -- no difficulties, since the form of the tree after the expander has no -- special significance, except as input to the backend of the compiler. -- However, if these modifications are done by the semantic phase, then -- it is important that they be done in a manner which allows the original -- tree to be preserved. This is because tools like pretty printers need -- to have this original tree structure available. -- The subprograms in this section allow rewriting of the tree by either -- insertion of new nodes in an existing list, or complete replacement of -- a subtree. The resulting tree for most purposes looks as though it has -- been really changed, and there is no trace of the original. However, -- special subprograms, also defined in this section, allow the original -- tree to be reconstructed if necessary. -- For tree modifications done in the expander, it is permissible to -- destroy the original tree, although it is also allowable to use the -- tree rewrite routines where it is convenient to do so. procedure Mark_Rewrite_Insertion (New_Node : Node_Id); pragma Inline (Mark_Rewrite_Insertion); -- This procedure marks the given node as an insertion made during a tree -- rewriting operation. Only the root needs to be marked. The call does -- not do the actual insertion, which must be done using one of the normal -- list insertion routines. The node is treated normally in all respects -- except for its response to Is_Rewrite_Insertion. function Is_Rewrite_Insertion (Node : Node_Id) return Boolean; pragma Inline (Is_Rewrite_Insertion); -- Tests whether the given node was marked using Set_Rewrite_Insert. This -- is used in reconstructing the original tree (where such nodes are to -- be eliminated from the reconstructed tree). procedure Rewrite_Substitute_Tree (Old_Node, New_Node : Node_Id); -- This is used when a complete subtree is to be replaced. Old_Node is the -- root of the old subtree to be replaced, and New_Node is the root of the -- newly constructed replacement subtree. The actual mechanism is to swap -- the contents of these two nodes fixing up the parent pointers of the -- replaced node (we do not attempt to preserve parent pointers for the -- original node). Neither Old_Node nor New_Node can be extended nodes. -- -- Note, New_Node may not contain references to Old_Node, for example as -- descendents, since the rewrite would make such references invalid. If -- New_Node does need to refernce Old_Node, then these references should -- be to a relocated copy of Old_Node (see Relocate_Node procedure). procedure Replace_Substitute_Tree (Old_Node, New_Node : Node_Id); -- This is similar to Rewrite_Substitute_Tree, except that the old value -- of Old_Node is not saved, and the New_Node is deleted after the replace -- since it is assumed that it can no longer be legitimately needed. The -- Is_Rewrite_Susbtitute flag will be False for the resulting node, unless -- it was already true on entry, and Original_Node will not return the -- original contents of the Old_Node, but rather the New_Node value (unless -- Old_Node had already been rewritten using Rewrite_Substitute_Tree). -- -- Note, New_Node may not contain references to Old_Node, for example as -- descendents, since the rewrite would make such references invalid. If -- New_Node does need to refernce Old_Node, then these references should -- be to a relocated copy of Old_Node (see Relocate_Node procedure). function Is_Rewrite_Substitution (Node : Node_Id) return Boolean; pragma Inline (Is_Rewrite_Substitution); -- Return True iff Node has been rewritten (i.e. if Node is the root -- or a subtree which was installed using Rewrite_Substitute_Tree) function Original_Node (Node : Node_Id) return Node_Id; -- If Node has not been rewritten, then returns its input argument -- unchanged, else returns the Node for the original subtree. If -- applied to a node marked by Set_Rewrite_Insert, returns Empty. -- Note that parents are not preserved in original tree nodes that -- are retrieved in this way (i.e. their children may have parent -- pointers which reference some other node). -- Note: there is no direct mechanism for deleting an original node (in -- a manner that can be reversed later). One possible approach is to use -- Rewrite_Substitute_Tree to substitute a null statement for the node -- to be deleted. ----------------------------------- -- Generic Field Access Routines -- ----------------------------------- -- This subpackage provides the functions for accessing and procedures -- for setting fields that are normally referenced by their logical -- synonyms defined in packages Sinfo and Einfo. As previously -- described the implementations of these packages use the package -- Atree.Unchecked_Access. package Unchecked_Access is -- Functions to allow interpretation of Union_Id values as Uint -- and Ureal values function To_Union is new Unchecked_Conversion (Uint, Union_Id); function To_Union is new Unchecked_Conversion (Ureal, Union_Id); function From_Union is new Unchecked_Conversion (Union_Id, Uint); function From_Union is new Unchecked_Conversion (Union_Id, Ureal); -- Functions to fetch contents of indicated field. It is an error -- to attempt to read the value of a field which is not present. function Field1 (N : Node_Id) return Union_Id; pragma Inline (Field1); function Field2 (N : Node_Id) return Union_Id; pragma Inline (Field2); function Field3 (N : Node_Id) return Union_Id; pragma Inline (Field3); function Field4 (N : Node_Id) return Union_Id; pragma Inline (Field4); function Field5 (N : Node_Id) return Union_Id; pragma Inline (Field5); function Field6 (N : Node_Id) return Union_Id; pragma Inline (Field6); function Field7 (N : Node_Id) return Union_Id; pragma Inline (Field7); function Field8 (N : Node_Id) return Union_Id; pragma Inline (Field8); function Field9 (N : Node_Id) return Union_Id; pragma Inline (Field9); function Field10 (N : Node_Id) return Union_Id; pragma Inline (Field10); function Field11 (N : Node_Id) return Union_Id; pragma Inline (Field11); function Field12 (N : Node_Id) return Union_Id; pragma Inline (Field12); function Field13 (N : Node_Id) return Union_Id; pragma Inline (Field13); function Field14 (N : Node_Id) return Union_Id; pragma Inline (Field14); function Field15 (N : Node_Id) return Union_Id; pragma Inline (Field15); function Field16 (N : Node_Id) return Union_Id; pragma Inline (Field16); function Field17 (N : Node_Id) return Union_Id; pragma Inline (Field17); function Field18 (N : Node_Id) return Union_Id; pragma Inline (Field18); function Field19 (N : Node_Id) return Union_Id; pragma Inline (Field19); function Field20 (N : Node_Id) return Union_Id; pragma Inline (Field20); function Field21 (N : Node_Id) return Union_Id; pragma Inline (Field21); function Field22 (N : Node_Id) return Union_Id; pragma Inline (Field22); function Node1 (N : Node_Id) return Node_Id; pragma Inline (Node1); function Node2 (N : Node_Id) return Node_Id; pragma Inline (Node2); function Node3 (N : Node_Id) return Node_Id; pragma Inline (Node3); function Node4 (N : Node_Id) return Node_Id; pragma Inline (Node4); function Node5 (N : Node_Id) return Node_Id; pragma Inline (Node5); function Node6 (N : Node_Id) return Node_Id; pragma Inline (Node6); function Node7 (N : Node_Id) return Node_Id; pragma Inline (Node7); function Node8 (N : Node_Id) return Node_Id; pragma Inline (Node8); function Node9 (N : Node_Id) return Node_Id; pragma Inline (Node9); function Node10 (N : Node_Id) return Node_Id; pragma Inline (Node10); function Node11 (N : Node_Id) return Node_Id; pragma Inline (Node11); function Node12 (N : Node_Id) return Node_Id; pragma Inline (Node12); function Node13 (N : Node_Id) return Node_Id; pragma Inline (Node13); function Node14 (N : Node_Id) return Node_Id; pragma Inline (Node14); function Node15 (N : Node_Id) return Node_Id; pragma Inline (Node15); function Node16 (N : Node_Id) return Node_Id; pragma Inline (Node16); function Node17 (N : Node_Id) return Node_Id; pragma Inline (Node17); function Node18 (N : Node_Id) return Node_Id; pragma Inline (Node18); function Node19 (N : Node_Id) return Node_Id; pragma Inline (Node19); function Node20 (N : Node_Id) return Node_Id; pragma Inline (Node20); function Node21 (N : Node_Id) return Node_Id; pragma Inline (Node21); function Node22 (N : Node_Id) return Node_Id; pragma Inline (Node22); function List1 (N : Node_Id) return List_Id; pragma Inline (List1); function List2 (N : Node_Id) return List_Id; pragma Inline (List2); function List3 (N : Node_Id) return List_Id; pragma Inline (List3); function List4 (N : Node_Id) return List_Id; pragma Inline (List4); function List5 (N : Node_Id) return List_Id; pragma Inline (List5); function Elist3 (N : Node_Id) return Elist_Id; pragma Inline (Elist3); function Elist6 (N : Node_Id) return Elist_Id; pragma Inline (Elist6); function Elist7 (N : Node_Id) return Elist_Id; pragma Inline (Elist7); function Elist13 (N : Node_Id) return Elist_Id; pragma Inline (Elist13); function Name1 (N : Node_Id) return Name_Id; pragma Inline (Name1); function Name2 (N : Node_Id) return Name_Id; pragma Inline (Name2); function Char_Code2 (N : Node_Id) return Char_Code; pragma Inline (Char_Code2); function Str3 (N : Node_Id) return String_Id; pragma Inline (Str3); function Uint3 (N : Node_Id) return Uint; pragma Inline (Uint3); function Uint4 (N : Node_Id) return Uint; pragma Inline (Uint4); function Uint8 (N : Node_Id) return Uint; pragma Inline (Uint8); function Uint9 (N : Node_Id) return Uint; pragma Inline (Uint9); function Uint11 (N : Node_Id) return Uint; pragma Inline (Uint11); function Uint12 (N : Node_Id) return Uint; pragma Inline (Uint12); function Uint15 (N : Node_Id) return Uint; pragma Inline (Uint15); function Ureal3 (N : Node_Id) return Ureal; pragma Inline (Ureal3); function Ureal6 (N : Node_Id) return Ureal; pragma Inline (Ureal6); function Ureal7 (N : Node_Id) return Ureal; pragma Inline (Ureal7); function Flag1 (N : Node_Id) return Boolean; pragma Inline (Flag1); function Flag3 (N : Node_Id) return Boolean; pragma Inline (Flag3); function Flag4 (N : Node_Id) return Boolean; pragma Inline (Flag4); function Flag5 (N : Node_Id) return Boolean; pragma Inline (Flag5); function Flag6 (N : Node_Id) return Boolean; pragma Inline (Flag6); function Flag7 (N : Node_Id) return Boolean; pragma Inline (Flag7); function Flag8 (N : Node_Id) return Boolean; pragma Inline (Flag8); function Flag9 (N : Node_Id) return Boolean; pragma Inline (Flag9); function Flag10 (N : Node_Id) return Boolean; pragma Inline (Flag10); function Flag11 (N : Node_Id) return Boolean; pragma Inline (Flag11); function Flag12 (N : Node_Id) return Boolean; pragma Inline (Flag12); function Flag13 (N : Node_Id) return Boolean; pragma Inline (Flag13); function Flag14 (N : Node_Id) return Boolean; pragma Inline (Flag14); function Flag15 (N : Node_Id) return Boolean; pragma Inline (Flag15); function Flag16 (N : Node_Id) return Boolean; pragma Inline (Flag16); function Flag17 (N : Node_Id) return Boolean; pragma Inline (Flag17); function Flag18 (N : Node_Id) return Boolean; pragma Inline (Flag18); function Flag19 (N : Node_Id) return Boolean; pragma Inline (Flag19); function Flag20 (N : Node_Id) return Boolean; pragma Inline (Flag20); function Flag21 (N : Node_Id) return Boolean; pragma Inline (Flag21); function Flag22 (N : Node_Id) return Boolean; pragma Inline (Flag22); function Flag23 (N : Node_Id) return Boolean; pragma Inline (Flag23); function Flag24 (N : Node_Id) return Boolean; pragma Inline (Flag24); function Flag25 (N : Node_Id) return Boolean; pragma Inline (Flag25); function Flag26 (N : Node_Id) return Boolean; pragma Inline (Flag26); function Flag27 (N : Node_Id) return Boolean; pragma Inline (Flag27); function Flag28 (N : Node_Id) return Boolean; pragma Inline (Flag28); function Flag29 (N : Node_Id) return Boolean; pragma Inline (Flag29); function Flag30 (N : Node_Id) return Boolean; pragma Inline (Flag30); function Flag31 (N : Node_Id) return Boolean; pragma Inline (Flag31); function Flag32 (N : Node_Id) return Boolean; pragma Inline (Flag32); function Flag33 (N : Node_Id) return Boolean; pragma Inline (Flag33); function Flag34 (N : Node_Id) return Boolean; pragma Inline (Flag34); function Flag35 (N : Node_Id) return Boolean; pragma Inline (Flag35); function Flag36 (N : Node_Id) return Boolean; pragma Inline (Flag36); function Flag37 (N : Node_Id) return Boolean; pragma Inline (Flag37); function Flag38 (N : Node_Id) return Boolean; pragma Inline (Flag38); function Flag39 (N : Node_Id) return Boolean; pragma Inline (Flag39); function Flag40 (N : Node_Id) return Boolean; pragma Inline (Flag40); function Flag41 (N : Node_Id) return Boolean; pragma Inline (Flag41); function Flag42 (N : Node_Id) return Boolean; pragma Inline (Flag42); function Flag43 (N : Node_Id) return Boolean; pragma Inline (Flag43); function Flag44 (N : Node_Id) return Boolean; pragma Inline (Flag44); function Flag45 (N : Node_Id) return Boolean; pragma Inline (Flag45); function Flag46 (N : Node_Id) return Boolean; pragma Inline (Flag46); function Flag47 (N : Node_Id) return Boolean; pragma Inline (Flag47); function Flag48 (N : Node_Id) return Boolean; pragma Inline (Flag48); function Flag49 (N : Node_Id) return Boolean; pragma Inline (Flag49); function Flag50 (N : Node_Id) return Boolean; pragma Inline (Flag50); function Flag51 (N : Node_Id) return Boolean; pragma Inline (Flag51); function Flag52 (N : Node_Id) return Boolean; pragma Inline (Flag52); function Flag53 (N : Node_Id) return Boolean; pragma Inline (Flag53); function Flag54 (N : Node_Id) return Boolean; pragma Inline (Flag54); function Flag55 (N : Node_Id) return Boolean; pragma Inline (Flag55); function Flag56 (N : Node_Id) return Boolean; pragma Inline (Flag56); function Flag57 (N : Node_Id) return Boolean; pragma Inline (Flag57); function Flag58 (N : Node_Id) return Boolean; pragma Inline (Flag58); function Flag59 (N : Node_Id) return Boolean; pragma Inline (Flag59); function Flag60 (N : Node_Id) return Boolean; pragma Inline (Flag60); function Flag61 (N : Node_Id) return Boolean; pragma Inline (Flag61); function Flag62 (N : Node_Id) return Boolean; pragma Inline (Flag62); function Flag63 (N : Node_Id) return Boolean; pragma Inline (Flag63); function Flag64 (N : Node_Id) return Boolean; pragma Inline (Flag64); function Flag65 (N : Node_Id) return Boolean; pragma Inline (Flag65); function Flag66 (N : Node_Id) return Boolean; pragma Inline (Flag66); function Flag67 (N : Node_Id) return Boolean; pragma Inline (Flag67); function Flag68 (N : Node_Id) return Boolean; pragma Inline (Flag68); function Flag69 (N : Node_Id) return Boolean; pragma Inline (Flag69); function Flag70 (N : Node_Id) return Boolean; pragma Inline (Flag70); function Flag71 (N : Node_Id) return Boolean; pragma Inline (Flag71); function Flag72 (N : Node_Id) return Boolean; pragma Inline (Flag72); function Flag73 (N : Node_Id) return Boolean; pragma Inline (Flag73); function Flag74 (N : Node_Id) return Boolean; pragma Inline (Flag74); function Flag75 (N : Node_Id) return Boolean; pragma Inline (Flag75); function Flag76 (N : Node_Id) return Boolean; pragma Inline (Flag76); function Flag77 (N : Node_Id) return Boolean; pragma Inline (Flag77); function Flag78 (N : Node_Id) return Boolean; pragma Inline (Flag78); function Flag79 (N : Node_Id) return Boolean; pragma Inline (Flag79); function Flag80 (N : Node_Id) return Boolean; pragma Inline (Flag80); function Flag81 (N : Node_Id) return Boolean; pragma Inline (Flag81); function Flag82 (N : Node_Id) return Boolean; pragma Inline (Flag82); function Flag83 (N : Node_Id) return Boolean; pragma Inline (Flag83); function Flag84 (N : Node_Id) return Boolean; pragma Inline (Flag84); function Flag85 (N : Node_Id) return Boolean; pragma Inline (Flag85); function Flag86 (N : Node_Id) return Boolean; pragma Inline (Flag86); function Flag87 (N : Node_Id) return Boolean; pragma Inline (Flag87); function Flag88 (N : Node_Id) return Boolean; pragma Inline (Flag88); function Flag89 (N : Node_Id) return Boolean; pragma Inline (Flag89); function Flag90 (N : Node_Id) return Boolean; pragma Inline (Flag90); function Flag91 (N : Node_Id) return Boolean; pragma Inline (Flag91); function Flag92 (N : Node_Id) return Boolean; pragma Inline (Flag92); function Flag93 (N : Node_Id) return Boolean; pragma Inline (Flag93); function Flag94 (N : Node_Id) return Boolean; pragma Inline (Flag94); function Flag95 (N : Node_Id) return Boolean; pragma Inline (Flag95); function Flag96 (N : Node_Id) return Boolean; pragma Inline (Flag96); function Flag97 (N : Node_Id) return Boolean; pragma Inline (Flag97); function Flag98 (N : Node_Id) return Boolean; pragma Inline (Flag98); function Flag99 (N : Node_Id) return Boolean; pragma Inline (Flag99); function Flag100 (N : Node_Id) return Boolean; pragma Inline (Flag100); function Flag101 (N : Node_Id) return Boolean; pragma Inline (Flag101); function Flag102 (N : Node_Id) return Boolean; pragma Inline (Flag102); function Flag103 (N : Node_Id) return Boolean; pragma Inline (Flag103); function Flag104 (N : Node_Id) return Boolean; pragma Inline (Flag104); function Flag105 (N : Node_Id) return Boolean; pragma Inline (Flag105); function Flag106 (N : Node_Id) return Boolean; pragma Inline (Flag106); function Flag107 (N : Node_Id) return Boolean; pragma Inline (Flag107); function Flag108 (N : Node_Id) return Boolean; pragma Inline (Flag108); function Flag109 (N : Node_Id) return Boolean; pragma Inline (Flag109); function Flag110 (N : Node_Id) return Boolean; pragma Inline (Flag110); function Flag111 (N : Node_Id) return Boolean; pragma Inline (Flag111); function Flag112 (N : Node_Id) return Boolean; pragma Inline (Flag112); -- Procedures to set value of indicated field procedure Set_Nkind (N : Node_Id; Val : Node_Kind); pragma Inline (Set_Nkind); procedure Set_Field1 (N : Node_Id; Val : Union_Id); pragma Inline (Set_Field1); procedure Set_Field2 (N : Node_Id; Val : Union_Id); pragma Inline (Set_Field2); procedure Set_Field3 (N : Node_Id; Val : Union_Id); pragma Inline (Set_Field3); procedure Set_Field4 (N : Node_Id; Val : Union_Id); pragma Inline (Set_Field4); procedure Set_Field5 (N : Node_Id; Val : Union_Id); pragma Inline (Set_Field5); procedure Set_Field6 (N : Node_Id; Val : Union_Id); pragma Inline (Set_Field6); procedure Set_Field7 (N : Node_Id; Val : Union_Id); pragma Inline (Set_Field7); procedure Set_Field8 (N : Node_Id; Val : Union_Id); pragma Inline (Set_Field8); procedure Set_Field9 (N : Node_Id; Val : Union_Id); pragma Inline (Set_Field9); procedure Set_Field10 (N : Node_Id; Val : Union_Id); pragma Inline (Set_Field10); procedure Set_Field11 (N : Node_Id; Val : Union_Id); pragma Inline (Set_Field11); procedure Set_Field12 (N : Node_Id; Val : Union_Id); pragma Inline (Set_Field12); procedure Set_Field13 (N : Node_Id; Val : Union_Id); pragma Inline (Set_Field13); procedure Set_Field14 (N : Node_Id; Val : Union_Id); pragma Inline (Set_Field14); procedure Set_Field15 (N : Node_Id; Val : Union_Id); pragma Inline (Set_Field15); procedure Set_Field16 (N : Node_Id; Val : Union_Id); pragma Inline (Set_Field16); procedure Set_Field17 (N : Node_Id; Val : Union_Id); pragma Inline (Set_Field17); procedure Set_Field18 (N : Node_Id; Val : Union_Id); pragma Inline (Set_Field18); procedure Set_Field19 (N : Node_Id; Val : Union_Id); pragma Inline (Set_Field19); procedure Set_Field20 (N : Node_Id; Val : Union_Id); pragma Inline (Set_Field20); procedure Set_Field21 (N : Node_Id; Val : Union_Id); pragma Inline (Set_Field21); procedure Set_Field22 (N : Node_Id; Val : Union_Id); pragma Inline (Set_Field22); procedure Set_Node1 (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node1); procedure Set_Node2 (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node2); procedure Set_Node3 (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node3); procedure Set_Node4 (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node4); procedure Set_Node5 (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node5); procedure Set_Node6 (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node6); procedure Set_Node7 (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node7); procedure Set_Node8 (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node8); procedure Set_Node9 (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node9); procedure Set_Node10 (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node10); procedure Set_Node11 (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node11); procedure Set_Node12 (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node12); procedure Set_Node13 (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node13); procedure Set_Node14 (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node14); procedure Set_Node15 (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node15); procedure Set_Node16 (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node16); procedure Set_Node17 (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node17); procedure Set_Node18 (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node18); procedure Set_Node19 (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node19); procedure Set_Node20 (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node20); procedure Set_Node21 (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node21); procedure Set_Node22 (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node22); procedure Set_List1 (N : Node_Id; Val : List_Id); pragma Inline (Set_List1); procedure Set_List2 (N : Node_Id; Val : List_Id); pragma Inline (Set_List2); procedure Set_List3 (N : Node_Id; Val : List_Id); pragma Inline (Set_List3); procedure Set_List4 (N : Node_Id; Val : List_Id); pragma Inline (Set_List4); procedure Set_List5 (N : Node_Id; Val : List_Id); pragma Inline (Set_List5); procedure Set_Elist3 (N : Node_Id; Val : Elist_Id); pragma Inline (Set_Elist3); procedure Set_Elist6 (N : Node_Id; Val : Elist_Id); pragma Inline (Set_Elist6); procedure Set_Elist7 (N : Node_Id; Val : Elist_Id); pragma Inline (Set_Elist7); procedure Set_Elist13 (N : Node_Id; Val : Elist_Id); pragma Inline (Set_Elist13); procedure Set_Name1 (N : Node_Id; Val : Name_Id); pragma Inline (Set_Name1); procedure Set_Name2 (N : Node_Id; Val : Name_Id); pragma Inline (Set_Name2); procedure Set_Char_Code2 (N : Node_Id; Val : Char_Code); pragma Inline (Set_Char_Code2); procedure Set_Str3 (N : Node_Id; Val : String_Id); pragma Inline (Set_Str3); procedure Set_Uint3 (N : Node_Id; Val : Uint); pragma Inline (Set_Uint3); procedure Set_Uint4 (N : Node_Id; Val : Uint); pragma Inline (Set_Uint4); procedure Set_Uint8 (N : Node_Id; Val : Uint); pragma Inline (Set_Uint8); procedure Set_Uint9 (N : Node_Id; Val : Uint); pragma Inline (Set_Uint9); procedure Set_Uint11 (N : Node_Id; Val : Uint); pragma Inline (Set_Uint11); procedure Set_Uint12 (N : Node_Id; Val : Uint); pragma Inline (Set_Uint12); procedure Set_Uint15 (N : Node_Id; Val : Uint); pragma Inline (Set_Uint15); procedure Set_Ureal3 (N : Node_Id; Val : Ureal); pragma Inline (Set_Ureal3); procedure Set_Ureal6 (N : Node_Id; Val : Ureal); pragma Inline (Set_Ureal6); procedure Set_Ureal7 (N : Node_Id; Val : Ureal); pragma Inline (Set_Ureal7); procedure Set_Flag1 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag1); procedure Set_Flag3 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag3); procedure Set_Flag4 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag4); procedure Set_Flag5 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag5); procedure Set_Flag6 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag6); procedure Set_Flag7 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag7); procedure Set_Flag8 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag8); procedure Set_Flag9 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag9); procedure Set_Flag10 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag10); procedure Set_Flag11 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag11); procedure Set_Flag12 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag12); procedure Set_Flag13 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag13); procedure Set_Flag14 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag14); procedure Set_Flag15 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag15); procedure Set_Flag16 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag16); procedure Set_Flag17 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag17); procedure Set_Flag18 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag18); procedure Set_Flag19 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag19); procedure Set_Flag20 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag20); procedure Set_Flag21 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag21); procedure Set_Flag22 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag22); procedure Set_Flag23 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag23); procedure Set_Flag24 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag24); procedure Set_Flag25 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag25); procedure Set_Flag26 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag26); procedure Set_Flag27 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag27); procedure Set_Flag28 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag28); procedure Set_Flag29 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag29); procedure Set_Flag30 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag30); procedure Set_Flag31 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag31); procedure Set_Flag32 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag32); procedure Set_Flag33 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag33); procedure Set_Flag34 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag34); procedure Set_Flag35 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag35); procedure Set_Flag36 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag36); procedure Set_Flag37 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag37); procedure Set_Flag38 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag38); procedure Set_Flag39 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag39); procedure Set_Flag40 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag40); procedure Set_Flag41 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag41); procedure Set_Flag42 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag42); procedure Set_Flag43 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag43); procedure Set_Flag44 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag44); procedure Set_Flag45 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag45); procedure Set_Flag46 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag46); procedure Set_Flag47 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag47); procedure Set_Flag48 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag48); procedure Set_Flag49 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag49); procedure Set_Flag50 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag50); procedure Set_Flag51 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag51); procedure Set_Flag52 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag52); procedure Set_Flag53 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag53); procedure Set_Flag54 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag54); procedure Set_Flag55 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag55); procedure Set_Flag56 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag56); procedure Set_Flag57 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag57); procedure Set_Flag58 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag58); procedure Set_Flag59 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag59); procedure Set_Flag60 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag60); procedure Set_Flag61 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag61); procedure Set_Flag62 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag62); procedure Set_Flag63 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag63); procedure Set_Flag64 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag64); procedure Set_Flag65 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag65); procedure Set_Flag66 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag66); procedure Set_Flag67 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag67); procedure Set_Flag68 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag68); procedure Set_Flag69 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag69); procedure Set_Flag70 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag70); procedure Set_Flag71 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag71); procedure Set_Flag72 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag72); procedure Set_Flag73 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag73); procedure Set_Flag74 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag74); procedure Set_Flag75 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag75); procedure Set_Flag76 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag76); procedure Set_Flag77 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag77); procedure Set_Flag78 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag78); procedure Set_Flag79 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag79); procedure Set_Flag80 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag80); procedure Set_Flag81 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag81); procedure Set_Flag82 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag82); procedure Set_Flag83 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag83); procedure Set_Flag84 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag84); procedure Set_Flag85 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag85); procedure Set_Flag86 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag86); procedure Set_Flag87 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag87); procedure Set_Flag88 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag88); procedure Set_Flag89 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag89); procedure Set_Flag90 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag90); procedure Set_Flag91 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag91); procedure Set_Flag92 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag92); procedure Set_Flag93 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag93); procedure Set_Flag94 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag94); procedure Set_Flag95 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag95); procedure Set_Flag96 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag96); procedure Set_Flag97 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag97); procedure Set_Flag98 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag98); procedure Set_Flag99 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag99); procedure Set_Flag100 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag100); procedure Set_Flag101 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag101); procedure Set_Flag102 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag102); procedure Set_Flag103 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag103); procedure Set_Flag104 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag104); procedure Set_Flag105 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag105); procedure Set_Flag106 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag106); procedure Set_Flag107 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag107); procedure Set_Flag108 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag108); procedure Set_Flag109 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag109); procedure Set_Flag110 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag110); procedure Set_Flag111 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag111); procedure Set_Flag112 (N : Node_Id; Val : Boolean); pragma Inline (Set_Flag112); -- The following versions of Set_Noden also set the parent -- pointer of the referenced node if it is non_Empty procedure Set_Node1_With_Parent (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node1); procedure Set_Node2_With_Parent (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node2); procedure Set_Node3_With_Parent (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node3); procedure Set_Node4_With_Parent (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node4); procedure Set_Node5_With_Parent (N : Node_Id; Val : Node_Id); pragma Inline (Set_Node5); -- The following versions of Set_Listn also set the parent pointer of -- the referenced node if it is non_Empty. The procedures for List6 -- to List12 can only be applied to nodes which have an extension. procedure Set_List1_With_Parent (N : Node_Id; Val : List_Id); pragma Inline (Set_List1_With_Parent); procedure Set_List2_With_Parent (N : Node_Id; Val : List_Id); pragma Inline (Set_List2_With_Parent); procedure Set_List3_With_Parent (N : Node_Id; Val : List_Id); pragma Inline (Set_List3_With_Parent); procedure Set_List4_With_Parent (N : Node_Id; Val : List_Id); pragma Inline (Set_List4_With_Parent); procedure Set_List5_With_Parent (N : Node_Id; Val : List_Id); pragma Inline (Set_List5_With_Parent); end Unchecked_Access; ----------------------------- -- Private Part Subpackage -- ----------------------------- -- The following package contains the definition of the data structure -- used by the implementation of the Atree package. Logically it really -- corresponds to the private part, hence the name. The reason that it -- is defined as a sub-package is to allow special access from clients -- that need to see the internals of the data structures. package Atree_Private_Part is ------------------------- -- Tree Representation -- ------------------------- -- The nodes of the tree are stored in a table (i.e. an array). In the -- case of extended nodes four consecutive components in the array are -- used. There are thus two formats for array components. One is used -- for non-extended nodes, and for the first component of extended -- nodes. The other is used for the extension parts (second, third and -- fourth components) of an extended node. A variant record structure -- is used to distinguish the two formats. type Node_Record (Is_Extension : Boolean := False) is record -- Logically, the only field in the common part is the above -- Is_Extension discriminant (a single bit). However, Gigi cannot -- yet handle such a structure, so we fill out the common part of -- the record with fields that are used in different ways for -- normal nodes and node extensions. Pflag1, Pflag2 : Boolean; -- The Paren_Count field is represented using two boolean flags, -- where Pflag1 is worth 1, and Pflag2 is worth 2. This is done -- because we need to be easily able to reuse this field for -- extra flags in the extended node case. In_List : Boolean; -- Flag used to indicate if node is a member of a list. -- This field is considered private to the Atree package. Rewrite_Sub : Boolean; -- Flag set if this node was result of Rewrite_Substitute_Tree. -- This field is considered private to the Atree package. Rewrite_Ins : Boolean; -- Flag set by Mark_Rewrite_Insertion procedure. -- This field is considered private to the Atree package. Comes_From_Source : Boolean; -- Flag to indicate that node comes from the source program (i.e. -- was built by the parser or scanner, not the analyzer or expander). Flag1 : Boolean; Flag3 : Boolean; Flag4 : Boolean; Flag5 : Boolean; Flag6 : Boolean; Flag7 : Boolean; Flag8 : Boolean; Flag9 : Boolean; Flag10 : Boolean; Flag11 : Boolean; Flag12 : Boolean; Flag13 : Boolean; Flag14 : Boolean; Flag15 : Boolean; Flag16 : Boolean; Flag17 : Boolean; Flag18 : Boolean; -- The eighteen flags for a normal node -- The above fields are used as follows in components two and -- three of an extended node entry (they are currently unused -- in the fourth component of an extended node entry). -- In_List used as Flag19, Flag40 in extension -- Rewrite_Sub used as Flag20, Flag41 in extension -- Rewrite_Ins used as Flag21, Flag42 in extension -- Flag1 used as Flag22, Flag43 in extension -- Comes_From_Source used as Flag23, Flag44 in extension -- Flag3 used as Flag24, Flag45 in extension -- Flag4 used as Flag25, Flag46 in extension -- Flag5 used as Flag26, Flag47 in extension -- Flag6 used as Flag27, Flag48 in extension -- Flag7 used as Flag28, Flag49 in extension -- Flag8 used as Flag29, Flag50 in extension -- Flag9 used as Flag30, Flag51 in extension -- Flag10 used as Flag31, Flag52 in extension -- Flag11 used as Flag32, Flag53 in extension -- Flag12 used as Flag33, Flag54 in extension -- Flag13 used as Flag34, Flag55 in extension -- Flag14 used as Flag35, Flag56 in extension -- Flag15 used as Flag36, Flag57 in extension -- Flag16 used as Flag37, Flag58 in extension -- Flag17 used as Flag38, Flag59 in extension -- Flag18 used as Flag39, Flag60 in extension -- Pflag1 used as Flag61, Flag62 in extension -- Pflag2 used as Flag63, Flag64 in extension Nkind : Node_Kind; -- For a non-extended node, or the initial section of an extended -- node, this field holds the Node_Kind value. For an extended node, -- the Nkind field of the second entry is used to hold the Ekind -- field of the entity, and also the Nkind of the third entity is -- used to hold 8 additional flags (Flag65-Flag72) -- Now finally (on an 32-bit boundary!) comes the variant part case Is_Extension is -- Non-extended node, or first component of extended node when False => Sloc : Source_Ptr; -- Source location for this node Link : Union_Id; -- This field is used either as the Parent pointer (if In_List -- is False), or as the list link pointer (if In_List is True) -- This field is considered private to the Atree package. Field1 : Union_Id; Field2 : Union_Id; Field3 : Union_Id; Field4 : Union_Id; Field5 : Union_Id; -- Five general use fields, which can contain Node_Id, List_Id, -- Elist_Id, String_Id, Name_Id, or Char_Code values depending -- on the values in Nkind and (for extended nodes), in Ekind. -- See packages Sinfo and Einfo for details of their use. -- Extension (second component) of extended node when True => Field6 : Union_Id; Field7 : Union_Id; Field8 : Union_Id; Field9 : Union_Id; Field10 : Union_Id; Field11 : Union_Id; Field12 : Union_Id; -- Seven additional general fields available only for entities -- See package Einfo for details of their use (which depends -- on the value in the Ekind field). -- In the third component, the extension format as described -- above is used as follows: -- Field6-11 Used to hold Field13-Field18 -- Field12 Used to hold Convention and Flags -- In the fourth component, the extension format as described -- above is used as follows: -- Field6-9 Used to hold Field19-Field22 -- Field10-11 Currently unused -- Field12 Used to hold Flags end case; end record; pragma Pack (Node_Record); for Node_Record'Size use 8*32; -- The following defines the extendible array used for the nodes table -- Nodes with extensions use two consecutive entries in the array package Nodes is new Table ( Table_Component_Type => Node_Record, Table_Index_Type => Node_Id, Table_Low_Bound => First_Node_Id, Table_Initial => Alloc_Nodes_Initial, Table_Increment => Alloc_Nodes_Increment, Table_Name => "Nodes"); end Atree_Private_Part; end Atree;