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/* Parser header
Copyright (C) 2003-2022 Free Software Foundation, Inc.
Contributed by Steven Bosscher
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC 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 General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#ifndef GFC_PARSE_H
#define GFC_PARSE_H
/* Enum for what the compiler is currently doing. */
enum gfc_compile_state
{
COMP_NONE, COMP_PROGRAM, COMP_MODULE, COMP_SUBMODULE, COMP_SUBROUTINE,
COMP_FUNCTION, COMP_BLOCK_DATA, COMP_INTERFACE, COMP_DERIVED,
COMP_DERIVED_CONTAINS, COMP_BLOCK, COMP_ASSOCIATE, COMP_IF,
COMP_STRUCTURE, COMP_UNION, COMP_MAP,
COMP_DO, COMP_SELECT, COMP_FORALL, COMP_WHERE, COMP_CONTAINS, COMP_ENUM,
COMP_SELECT_TYPE, COMP_SELECT_RANK, COMP_OMP_STRUCTURED_BLOCK, COMP_CRITICAL,
COMP_DO_CONCURRENT, COMP_OMP_STRICTLY_STRUCTURED_BLOCK
};
/* Stack element for the current compilation state. These structures
are allocated as automatic variables. */
typedef struct gfc_state_data
{
gfc_compile_state state;
gfc_symbol *sym; /* Block name associated with this level */
gfc_symtree *do_variable; /* For DO blocks the iterator variable. */
struct gfc_code *construct;
struct gfc_code *head, *tail;
struct gfc_state_data *previous;
/* Block-specific state data. */
union
{
gfc_st_label *end_do_label;
gfc_oacc_declare *oacc_declare_clauses;
}
ext;
}
gfc_state_data;
extern gfc_state_data *gfc_state_stack;
#define gfc_current_block() (gfc_state_stack->sym)
#define gfc_current_state() (gfc_state_stack->state)
#define gfc_comp_struct(s) \
((s) == COMP_DERIVED || (s) == COMP_STRUCTURE || (s) == COMP_MAP)
int gfc_check_do_variable (gfc_symtree *);
bool gfc_find_state (gfc_compile_state);
gfc_state_data *gfc_enclosing_unit (gfc_compile_state *);
const char *gfc_ascii_statement (gfc_statement);
match gfc_match_enum (void);
match gfc_match_enumerator_def (void);
void gfc_free_enum_history (void);
extern bool gfc_matching_function;
match gfc_match_prefix (gfc_typespec *);
bool is_oacc (gfc_state_data *);
#endif /* GFC_PARSE_H */