/* Deal with I/O statements & related stuff.
- Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
- 2009, 2010, 2011
- Free Software Foundation, Inc.
+ Copyright (C) 2000-2021 Free Software Foundation, Inc.
Contributed by Andy Vaught
This file is part of GCC.
#include "config.h"
#include "system.h"
-#include "flags.h"
+#include "coretypes.h"
+#include "options.h"
#include "gfortran.h"
#include "match.h"
#include "parse.h"
+#include "constructor.h"
gfc_st_label
format_asterisk = {0, NULL, NULL, -1, ST_LABEL_FORMAT, ST_LABEL_FORMAT, NULL,
- 0, {NULL, NULL}};
+ 0, {NULL, NULL}, NULL};
typedef struct
{
io_tag;
static const io_tag
+ tag_readonly = {"READONLY", " readonly", NULL, BT_UNKNOWN },
+ tag_shared = {"SHARE", " shared", NULL, BT_UNKNOWN },
+ tag_noshared = {"SHARE", " noshared", NULL, BT_UNKNOWN },
+ tag_e_share = {"SHARE", " share =", " %e", BT_CHARACTER },
+ tag_v_share = {"SHARE", " share =", " %v", BT_CHARACTER },
+ tag_cc = {"CARRIAGECONTROL", " carriagecontrol =", " %e",
+ BT_CHARACTER },
+ tag_v_cc = {"CARRIAGECONTROL", " carriagecontrol =", " %v",
+ BT_CHARACTER },
tag_file = {"FILE", " file =", " %e", BT_CHARACTER },
tag_status = {"STATUS", " status =", " %e", BT_CHARACTER},
tag_e_access = {"ACCESS", " access =", " %e", BT_CHARACTER},
tag_eor = {"EOR", " eor =", " %l", BT_UNKNOWN},
tag_id = {"ID", " id =", " %v", BT_INTEGER},
tag_pending = {"PENDING", " pending =", " %v", BT_LOGICAL},
- tag_newunit = {"NEWUNIT", " newunit =", " %v", BT_INTEGER};
+ tag_newunit = {"NEWUNIT", " newunit =", " %v", BT_INTEGER},
+ tag_s_iqstream = {"STREAM", " stream =", " %v", BT_CHARACTER};
static gfc_dt *current_dt;
-#define RESOLVE_TAG(x, y) if (resolve_tag(x, y) == FAILURE) return FAILURE;
-
+#define RESOLVE_TAG(x, y) if (!resolve_tag (x, y)) return false;
/**************** Fortran 95 FORMAT parser *****************/
/* FORMAT tokens returned by format_lex(). */
-typedef enum
+enum format_token
{
FMT_NONE, FMT_UNKNOWN, FMT_SIGNED_INT, FMT_ZERO, FMT_POSINT, FMT_PERIOD,
FMT_COMMA, FMT_COLON, FMT_SLASH, FMT_DOLLAR, FMT_LPAREN,
FMT_RPAREN, FMT_X, FMT_SIGN, FMT_BLANK, FMT_CHAR, FMT_P, FMT_IBOZ, FMT_F,
FMT_E, FMT_EN, FMT_ES, FMT_G, FMT_L, FMT_A, FMT_D, FMT_H, FMT_END,
FMT_ERROR, FMT_DC, FMT_DP, FMT_T, FMT_TR, FMT_TL, FMT_STAR, FMT_RC,
- FMT_RD, FMT_RN, FMT_RP, FMT_RU, FMT_RZ
-}
-format_token;
+ FMT_RD, FMT_RN, FMT_RP, FMT_RU, FMT_RZ, FMT_DT
+};
/* Local variables for checking format strings. The saved_token is
used to back up by a single format token during the parsing
c = '\0';
}
- if (gfc_option.flag_backslash && c == '\\')
+ if (flag_backslash && c == '\\')
{
locus old_locus = gfc_current_locus;
gfc_current_locus = old_locus;
if (!(gfc_option.allow_std & GFC_STD_GNU) && !inhibit_warnings)
- gfc_warning ("Extension: backslash character at %C");
+ gfc_warning (0, "Extension: backslash character at %C");
}
if (mode == MODE_COPY)
/* Eat up the spaces and return a character. */
static char
-next_char_not_space (bool *error)
+next_char_not_space ()
{
char c;
do
{
error_element = c = next_char (NONSTRING);
if (c == '\t')
- {
- if (gfc_option.allow_std & GFC_STD_GNU)
- gfc_warning ("Extension: Tab character in format at %C");
- else
- {
- gfc_error ("Extension: Tab character in format at %C");
- *error = true;
- return c;
- }
- }
+ gfc_warning (OPT_Wtabs, "Nonconforming tab character in format at %C");
}
while (gfc_is_whitespace (c));
return c;
char c, delim;
int zflag;
int negative_flag;
- bool error = false;
if (saved_token != FMT_NONE)
{
return token;
}
- c = next_char_not_space (&error);
+ c = next_char_not_space ();
negative_flag = 0;
switch (c)
{
case '-':
negative_flag = 1;
+ /* Falls through. */
+
case '+':
- c = next_char_not_space (&error);
+ c = next_char_not_space ();
if (!ISDIGIT (c))
{
token = FMT_UNKNOWN;
do
{
- c = next_char_not_space (&error);
+ c = next_char_not_space ();
if (ISDIGIT (c))
value = 10 * value + c - '0';
}
do
{
- c = next_char_not_space (&error);
+ c = next_char_not_space ();
if (ISDIGIT (c))
{
value = 10 * value + c - '0';
break;
case 'T':
- c = next_char_not_space (&error);
+ c = next_char_not_space ();
switch (c)
{
case 'L':
break;
case 'S':
- c = next_char_not_space (&error);
+ c = next_char_not_space ();
if (c != 'P' && c != 'S')
unget_char ();
break;
case 'B':
- c = next_char_not_space (&error);
+ c = next_char_not_space ();
if (c == 'N' || c == 'Z')
token = FMT_BLANK;
else
if (c == delim)
{
- c = next_char (INSTRING_NOWARN);
+ c = next_char (NONSTRING);
if (c == '\0')
{
break;
case 'E':
- c = next_char_not_space (&error);
+ c = next_char_not_space ();
if (c == 'N' )
token = FMT_EN;
else if (c == 'S')
break;
case 'D':
- c = next_char_not_space (&error);
+ c = next_char_not_space ();
if (c == 'P')
{
- if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: DP format "
- "specifier not allowed at %C") == FAILURE)
+ if (!gfc_notify_std (GFC_STD_F2003, "DP format "
+ "specifier not allowed at %C"))
return FMT_ERROR;
token = FMT_DP;
}
else if (c == 'C')
{
- if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: DC format "
- "specifier not allowed at %C") == FAILURE)
+ if (!gfc_notify_std (GFC_STD_F2003, "DC format "
+ "specifier not allowed at %C"))
return FMT_ERROR;
token = FMT_DC;
}
+ else if (c == 'T')
+ {
+ if (!gfc_notify_std (GFC_STD_F2003, "Fortran 2003: DT format "
+ "specifier not allowed at %C"))
+ return FMT_ERROR;
+ token = FMT_DT;
+ c = next_char_not_space ();
+ if (c == '\'' || c == '"')
+ {
+ delim = c;
+ value = 0;
+
+ for (;;)
+ {
+ c = next_char (INSTRING_WARN);
+ if (c == '\0')
+ {
+ token = FMT_END;
+ break;
+ }
+
+ if (c == delim)
+ {
+ c = next_char (NONSTRING);
+ if (c == '\0')
+ {
+ token = FMT_END;
+ break;
+ }
+ if (c == '/')
+ {
+ token = FMT_SLASH;
+ break;
+ }
+ if (c == delim)
+ continue;
+ unget_char ();
+ break;
+ }
+ }
+ }
+ else if (c == '/')
+ {
+ token = FMT_SLASH;
+ break;
+ }
+ else
+ unget_char ();
+ }
else
{
token = FMT_D;
break;
case 'R':
- c = next_char_not_space (&error);
+ c = next_char_not_space ();
switch (c)
{
case 'C':
break;
}
- if (error)
- return FMT_ERROR;
-
return token;
}
by itself, and we are checking it for validity. The dual origin
means that the warning message is a little less than great. */
-static gfc_try
+static bool
check_format (bool is_input)
{
- const char *posint_required = _("Positive width required");
- const char *nonneg_required = _("Nonnegative width required");
- const char *unexpected_element = _("Unexpected element '%c' in format string"
- " at %L");
- const char *unexpected_end = _("Unexpected end of format string");
- const char *zero_width = _("Zero width in format descriptor");
-
- const char *error;
+ const char *posint_required
+ = G_("Positive width required in format string at %L");
+ const char *nonneg_required
+ = G_("Nonnegative width required in format string at %L");
+ const char *unexpected_element
+ = G_("Unexpected element %qc in format string at %L");
+ const char *unexpected_end
+ = G_("Unexpected end of format string in format string at %L");
+ const char *zero_width
+ = G_("Zero width in format descriptor in format string at %L");
+
+ const char *error = NULL;
format_token t, u;
int level;
int repeat;
- gfc_try rv;
+ bool rv;
use_last_char = 0;
saved_token = FMT_NONE;
level = 0;
repeat = 0;
- rv = SUCCESS;
+ rv = true;
format_string_pos = 0;
t = format_lex ();
goto fail;
if (t != FMT_LPAREN)
{
- error = _("Missing leading left parenthesis");
+ error = G_("Missing leading left parenthesis in format string at %L");
goto syntax;
}
level++;
goto format_item;
}
- error = _("Left parenthesis required after '*'");
+ error = G_("Left parenthesis required after %<*%> in format string "
+ "at %L");
goto syntax;
case FMT_POSINT:
goto fail;
if (t != FMT_P)
{
- error = _("Expected P edit descriptor");
+ error = G_("Expected P edit descriptor in format string at %L");
goto syntax;
}
case FMT_P:
/* P requires a prior number. */
- error = _("P descriptor requires leading scale factor");
+ error = G_("P descriptor requires leading scale factor in format "
+ "string at %L");
goto syntax;
case FMT_X:
/* X requires a prior number if we're being pedantic. */
if (mode != MODE_FORMAT)
format_locus.nextc += format_string_pos;
- if (gfc_notify_std (GFC_STD_GNU, "Extension: X descriptor "
- "requires leading space count at %L", &format_locus)
- == FAILURE)
- return FAILURE;
+ if (!gfc_notify_std (GFC_STD_GNU, "X descriptor requires leading "
+ "space count at %L", &format_locus))
+ return false;
goto between_desc;
case FMT_SIGN:
if (t == FMT_ERROR)
goto fail;
- if (gfc_notify_std (GFC_STD_GNU, "Extension: $ descriptor at %L",
- &format_locus) == FAILURE)
- return FAILURE;
+ if (!gfc_notify_std (GFC_STD_GNU, "$ descriptor at %L", &format_locus))
+ return false;
if (t != FMT_RPAREN || level > 0)
{
- gfc_warning ("$ should be the last specifier in format at %L",
+ gfc_warning (0, "$ should be the last specifier in format at %L",
&format_locus);
goto optional_comma_1;
}
case FMT_A:
case FMT_D:
case FMT_H:
+ case FMT_DT:
goto data_desc;
case FMT_END:
error = unexpected_end;
goto syntax;
+ case FMT_RPAREN:
+ if (flag_dec_blank_format_item)
+ goto finished;
+ else
+ {
+ error = G_("Missing item in format string at %L");
+ goto syntax;
+ }
+
default:
error = unexpected_element;
goto syntax;
&& t != FMT_F && t != FMT_E && t != FMT_EN && t != FMT_ES
&& t != FMT_D && t != FMT_G && t != FMT_RPAREN && t != FMT_SLASH)
{
- error = _("Comma required after P descriptor");
+ error = G_("Comma required after P descriptor in format string "
+ "at %L");
goto syntax;
}
if (t != FMT_COMMA)
if (t == FMT_ERROR)
goto fail;
}
- if (t != FMT_F && t != FMT_E && t != FMT_EN && t != FMT_ES && t != FMT_D
- && t != FMT_G && t != FMT_RPAREN && t != FMT_SLASH)
+ if (t != FMT_F && t != FMT_E && t != FMT_EN && t != FMT_ES
+ && t != FMT_D && t != FMT_G && t != FMT_RPAREN && t != FMT_SLASH)
{
- error = _("Comma required after P descriptor");
+ error = G_("Comma required after P descriptor in format string "
+ "at %L");
goto syntax;
}
}
t = format_lex ();
if (t != FMT_POSINT)
{
- error = _("Positive width required with T descriptor");
+ error = G_("Positive width required with T descriptor in format "
+ "string at %L");
goto syntax;
}
break;
goto fail;
if (t == FMT_POSINT)
break;
-
- switch (gfc_notification_std (GFC_STD_GNU))
+ if (mode != MODE_FORMAT)
+ format_locus.nextc += format_string_pos;
+ if (t == FMT_ZERO)
{
- case WARNING:
- if (mode != MODE_FORMAT)
- format_locus.nextc += format_string_pos;
- gfc_warning ("Extension: Missing positive width after L "
- "descriptor at %L", &format_locus);
- saved_token = t;
- break;
-
- case ERROR:
- error = posint_required;
- goto syntax;
-
- case SILENT:
- saved_token = t;
- break;
-
- default:
- gcc_unreachable ();
+ switch (gfc_notification_std (GFC_STD_GNU))
+ {
+ case WARNING:
+ gfc_warning (0, "Extension: Zero width after L "
+ "descriptor at %L", &format_locus);
+ break;
+ case ERROR:
+ gfc_error ("Extension: Zero width after L "
+ "descriptor at %L", &format_locus);
+ goto fail;
+ case SILENT:
+ break;
+ default:
+ gcc_unreachable ();
+ }
+ }
+ else
+ {
+ saved_token = t;
+ gfc_notify_std (GFC_STD_GNU, "Missing positive width after "
+ "L descriptor at %L", &format_locus);
}
break;
error = zero_width;
goto syntax;
}
- if (gfc_notify_std (GFC_STD_F2008, "Fortran 2008: 'G0' in "
- "format at %L", &format_locus) == FAILURE)
- return FAILURE;
+ if (!gfc_notify_std (GFC_STD_F2008, "%<G0%> in format at %L",
+ &format_locus))
+ return false;
u = format_lex ();
if (u != FMT_PERIOD)
{
u = format_lex ();
if (u == FMT_E)
{
- error = _("E specifier not allowed with g0 descriptor");
+ error = G_("E specifier not allowed with g0 descriptor in "
+ "format string at %L");
goto syntax;
}
saved_token = u;
if (u != FMT_POSINT)
{
+ if (flag_dec)
+ {
+ if (flag_dec_format_defaults)
+ {
+ /* Assume a default width based on the variable size. */
+ saved_token = u;
+ break;
+ }
+ else
+ {
+ gfc_error ("Positive width required in format "
+ "specifier %s at %L", token_to_string (t),
+ &format_locus);
+ saved_token = u;
+ goto fail;
+ }
+ }
+
format_locus.nextc += format_string_pos;
- gfc_error ("Positive width required in format "
- "specifier %s at %L", token_to_string (t),
- &format_locus);
- saved_token = u;
- goto fail;
+ if (!gfc_notify_std (GFC_STD_F2018,
+ "positive width required at %L",
+ &format_locus))
+ {
+ saved_token = u;
+ goto fail;
+ }
+ if (flag_dec_format_defaults)
+ {
+ /* Assume a default width based on the variable size. */
+ saved_token = u;
+ break;
+ }
}
u = format_lex ();
goto fail;
}
else
- gfc_warning ("Period required in format "
+ gfc_warning (0, "Period required in format "
"specifier %s at %L", token_to_string (t),
&format_locus);
/* If we go to finished, we need to unwind this
if (u == FMT_ERROR)
goto fail;
if (u != FMT_E)
- {
- saved_token = u;
- }
+ saved_token = u;
else
{
u = format_lex ();
goto fail;
if (u != FMT_POSINT)
{
- error = _("Positive exponent width required");
- goto syntax;
+ if (u == FMT_ZERO)
+ {
+ if (!gfc_notify_std (GFC_STD_F2018,
+ "Positive exponent width required in "
+ "format string at %L", &format_locus))
+ {
+ saved_token = u;
+ goto fail;
+ }
+ }
+ else
+ {
+ error = G_("Positive exponent width required in format "
+ "string at %L");
+ goto syntax;
+ }
}
}
break;
+ case FMT_DT:
+ t = format_lex ();
+ if (t == FMT_ERROR)
+ goto fail;
+ switch (t)
+ {
+ case FMT_RPAREN:
+ level--;
+ if (level < 0)
+ goto finished;
+ goto between_desc;
+
+ case FMT_COMMA:
+ goto format_item;
+
+ case FMT_COLON:
+ goto format_item_1;
+
+ case FMT_LPAREN:
+
+ dtio_vlist:
+ t = format_lex ();
+ if (t == FMT_ERROR)
+ goto fail;
+
+ if (t != FMT_POSINT)
+ {
+ error = posint_required;
+ goto syntax;
+ }
+
+ t = format_lex ();
+ if (t == FMT_ERROR)
+ goto fail;
+
+ if (t == FMT_COMMA)
+ goto dtio_vlist;
+ if (t != FMT_RPAREN)
+ {
+ error = G_("Right parenthesis expected at %C in format string "
+ "at %L");
+ goto syntax;
+ }
+ goto between_desc;
+
+ default:
+ error = unexpected_element;
+ goto syntax;
+ }
+ break;
+
case FMT_F:
t = format_lex ();
if (t == FMT_ERROR)
goto fail;
if (t != FMT_ZERO && t != FMT_POSINT)
{
+ if (flag_dec_format_defaults)
+ {
+ /* Assume the default width is expected here and continue lexing. */
+ value = 0; /* It doesn't matter what we set the value to here. */
+ saved_token = t;
+ break;
+ }
error = nonneg_required;
goto syntax;
}
/* Warn if -std=legacy, otherwise error. */
if (gfc_option.warn_std != 0)
{
- error = _("Period required in format specifier");
+ error = G_("Period required in format specifier in format "
+ "string at %L");
goto syntax;
}
if (mode != MODE_FORMAT)
format_locus.nextc += format_string_pos;
- gfc_warning ("Period required in format specifier at %L",
+ gfc_warning (0, "Period required in format specifier at %L",
&format_locus);
saved_token = t;
break;
{
if (mode != MODE_FORMAT)
format_locus.nextc += format_string_pos;
- gfc_warning ("The H format specifier at %L is"
+ gfc_warning (0, "The H format specifier at %L is"
" a Fortran 95 deleted feature", &format_locus);
}
if (mode == MODE_STRING)
goto fail;
if (t != FMT_ZERO && t != FMT_POSINT)
{
- error = nonneg_required;
- goto syntax;
+ if (flag_dec_format_defaults)
+ {
+ /* Assume the default width is expected here and continue lexing. */
+ value = 0; /* It doesn't matter what we set the value to here. */
+ saved_token = t;
+ }
+ else
+ {
+ error = nonneg_required;
+ goto syntax;
+ }
}
else if (is_input && t == FMT_ZERO)
{
if (t == FMT_ERROR)
goto fail;
if (t != FMT_PERIOD)
- {
- saved_token = t;
- }
+ saved_token = t;
else
{
t = format_lex ();
default:
if (mode != MODE_FORMAT)
format_locus.nextc += format_string_pos - 1;
- if (gfc_notify_std (GFC_STD_GNU, "Extension: Missing comma at %L",
- &format_locus) == FAILURE)
- return FAILURE;
+ if (!gfc_notify_std (GFC_STD_GNU, "Missing comma at %L", &format_locus))
+ return false;
/* If we do not actually return a failure, we need to unwind this
before the next round. */
if (mode != MODE_FORMAT)
default:
if (mode != MODE_FORMAT)
format_locus.nextc += format_string_pos;
- if (gfc_notify_std (GFC_STD_GNU, "Extension: Missing comma at %L",
- &format_locus) == FAILURE)
- return FAILURE;
+ if (!gfc_notify_std (GFC_STD_GNU, "Missing comma at %L", &format_locus))
+ return false;
/* If we do not actually return a failure, we need to unwind this
before the next round. */
if (mode != MODE_FORMAT)
if (error == unexpected_element)
gfc_error (error, error_element, &format_locus);
else
- gfc_error ("%s in format string at %L", error, &format_locus);
+ gfc_error (error, &format_locus);
fail:
- rv = FAILURE;
+ rv = false;
finished:
return rv;
/* Given an expression node that is a constant string, see if it looks
like a format string. */
-static gfc_try
+static bool
check_format_string (gfc_expr *e, bool is_input)
{
- gfc_try rv;
+ bool rv;
int i;
if (!e || e->ts.type != BT_CHARACTER || e->expr_type != EXPR_CONSTANT)
- return SUCCESS;
+ return true;
mode = MODE_STRING;
format_string = e->value.character.string;
string, like '(A10,I3)F5'
start at the end and move back to the last character processed,
spaces are OK */
- if (rv == SUCCESS && e->value.character.length > format_string_pos)
+ if (rv && e->value.character.length > format_string_pos)
for (i=e->value.character.length-1;i>format_string_pos-1;i--)
if (e->value.character.string[i] != ' ')
{
format_locus.nextc += format_length + 1;
- gfc_warning ("Extraneous characters in format at %L", &format_locus);
+ gfc_warning (0,
+ "Extraneous characters in format at %L", &format_locus);
break;
}
return rv;
}
-/************ Fortran 95 I/O statement matchers *************/
+/************ Fortran I/O statement matchers *************/
/* Match a FORMAT statement. This amounts to actually parsing the
format descriptors in order to correctly locate the end of the
return MATCH_ERROR;
}
+ /* Before parsing the rest of a FORMAT statement, check F2008:c1206. */
+ if ((gfc_current_state () == COMP_FUNCTION
+ || gfc_current_state () == COMP_SUBROUTINE)
+ && gfc_state_stack->previous->state == COMP_INTERFACE)
+ {
+ gfc_error ("FORMAT statement at %C cannot appear within an INTERFACE");
+ return MATCH_ERROR;
+ }
+
if (gfc_statement_label == NULL)
{
gfc_error ("Missing format label at %C");
start = gfc_current_locus;
- if (check_format (false) == FAILURE)
+ if (!check_format (false))
return MATCH_ERROR;
if (gfc_match_eos () != MATCH_YES)
return MATCH_ERROR;
}
- if (result->symtree->n.sym->attr.intent == INTENT_IN)
+ if (result->symtree)
{
- gfc_error ("Variable %s cannot be INTENT(IN) at %C", tag->name);
- gfc_free_expr (result);
- return MATCH_ERROR;
- }
+ bool impure;
- if (gfc_pure (NULL) && gfc_impure_variable (result->symtree->n.sym))
- {
- gfc_error ("Variable %s cannot be assigned in PURE procedure at %C",
- tag->name);
- gfc_free_expr (result);
- return MATCH_ERROR;
- }
+ if (result->symtree->n.sym->attr.intent == INTENT_IN)
+ {
+ gfc_error ("Variable %s cannot be INTENT(IN) at %C", tag->name);
+ gfc_free_expr (result);
+ return MATCH_ERROR;
+ }
- if (gfc_implicit_pure (NULL) && gfc_impure_variable (result->symtree->n.sym))
- gfc_current_ns->proc_name->attr.implicit_pure = 0;
+ impure = gfc_impure_variable (result->symtree->n.sym);
+ if (impure && gfc_pure (NULL))
+ {
+ gfc_error ("Variable %s cannot be assigned in PURE procedure at %C",
+ tag->name);
+ gfc_free_expr (result);
+ return MATCH_ERROR;
+ }
+
+ if (impure)
+ gfc_unset_implicit_pure (NULL);
+ }
*v = result;
return MATCH_YES;
m = match_vtag (tag, result);
if (m == MATCH_YES)
- gfc_check_do_variable ((*result)->symtree);
+ {
+ if ((*result)->symtree)
+ gfc_check_do_variable ((*result)->symtree);
+
+ if ((*result)->expr_type == EXPR_CONSTANT)
+ {
+ gfc_error ("Expecting a variable at %L", &(*result)->where);
+ return MATCH_ERROR;
+ }
+ }
return m;
}
return MATCH_ERROR;
}
- if (gfc_reference_st_label (*label, ST_LABEL_TARGET) == FAILURE)
+ if (!gfc_reference_st_label (*label, ST_LABEL_TARGET))
return MATCH_ERROR;
return m;
}
+/* Match a tag using match_etag, but only if -fdec is enabled. */
+static match
+match_dec_etag (const io_tag *tag, gfc_expr **e)
+{
+ match m = match_etag (tag, e);
+ if (flag_dec && m != MATCH_NO)
+ return m;
+ else if (m != MATCH_NO)
+ {
+ gfc_error ("%s at %C is a DEC extension, enable with "
+ "%<-fdec%>", tag->name);
+ return MATCH_ERROR;
+ }
+ return m;
+}
+
+
+/* Match a tag using match_vtag, but only if -fdec is enabled. */
+static match
+match_dec_vtag (const io_tag *tag, gfc_expr **e)
+{
+ match m = match_vtag(tag, e);
+ if (flag_dec && m != MATCH_NO)
+ return m;
+ else if (m != MATCH_NO)
+ {
+ gfc_error ("%s at %C is a DEC extension, enable with "
+ "%<-fdec%>", tag->name);
+ return MATCH_ERROR;
+ }
+ return m;
+}
+
+
+/* Match a DEC I/O flag tag - a tag with no expression such as READONLY. */
+
+static match
+match_dec_ftag (const io_tag *tag, gfc_open *o)
+{
+ match m;
+
+ m = gfc_match (tag->spec);
+ if (m != MATCH_YES)
+ return m;
+
+ if (!flag_dec)
+ {
+ gfc_error ("%s at %C is a DEC extension, enable with "
+ "%<-fdec%>", tag->name);
+ return MATCH_ERROR;
+ }
+
+ /* Just set the READONLY flag, which we use at runtime to avoid delete on
+ close. */
+ if (tag == &tag_readonly)
+ {
+ o->readonly |= 1;
+ return MATCH_YES;
+ }
+
+ /* Interpret SHARED as SHARE='DENYNONE' (read lock). */
+ else if (tag == &tag_shared)
+ {
+ if (o->share != NULL)
+ {
+ gfc_error ("Duplicate %s specification at %C", tag->name);
+ return MATCH_ERROR;
+ }
+ o->share = gfc_get_character_expr (gfc_default_character_kind,
+ &gfc_current_locus, "denynone", 8);
+ return MATCH_YES;
+ }
+
+ /* Interpret NOSHARED as SHARE='DENYRW' (exclusive lock). */
+ else if (tag == &tag_noshared)
+ {
+ if (o->share != NULL)
+ {
+ gfc_error ("Duplicate %s specification at %C", tag->name);
+ return MATCH_ERROR;
+ }
+ o->share = gfc_get_character_expr (gfc_default_character_kind,
+ &gfc_current_locus, "denyrw", 6);
+ return MATCH_YES;
+ }
+
+ /* We handle all DEC tags above. */
+ gcc_unreachable ();
+}
+
+
/* Resolution of the FORMAT tag, to be called from resolve_tag. */
-static gfc_try
-resolve_tag_format (const gfc_expr *e)
+static bool
+resolve_tag_format (gfc_expr *e)
{
if (e->expr_type == EXPR_CONSTANT
&& (e->ts.type != BT_CHARACTER
{
gfc_error ("Constant expression in FORMAT tag at %L must be "
"of type default CHARACTER", &e->where);
- return FAILURE;
+ return false;
+ }
+
+ /* Concatenate a constant character array into a single character
+ expression. */
+
+ if ((e->expr_type == EXPR_ARRAY || e->rank > 0)
+ && e->ts.type == BT_CHARACTER
+ && gfc_is_constant_expr (e))
+ {
+ if (e->expr_type == EXPR_VARIABLE
+ && e->symtree->n.sym->attr.flavor == FL_PARAMETER)
+ gfc_simplify_expr (e, 1);
+
+ if (e->expr_type == EXPR_ARRAY)
+ {
+ gfc_constructor *c;
+ gfc_charlen_t n, len;
+ gfc_expr *r;
+ gfc_char_t *dest, *src;
+
+ if (e->value.constructor == NULL)
+ {
+ gfc_error ("FORMAT tag at %L cannot be a zero-sized array",
+ &e->where);
+ return false;
+ }
+
+ n = 0;
+ c = gfc_constructor_first (e->value.constructor);
+ len = c->expr->value.character.length;
+
+ for ( ; c; c = gfc_constructor_next (c))
+ n += len;
+
+ r = gfc_get_character_expr (e->ts.kind, &e->where, NULL, n);
+ dest = r->value.character.string;
+
+ for (c = gfc_constructor_first (e->value.constructor);
+ c; c = gfc_constructor_next (c))
+ {
+ src = c->expr->value.character.string;
+ for (gfc_charlen_t i = 0 ; i < len; i++)
+ *dest++ = *src++;
+ }
+
+ gfc_replace_expr (e, r);
+ return true;
+ }
}
/* If e's rank is zero and e is not an element of an array, it should be
{
gfc_error ("FORMAT tag at %L must be of type default-kind CHARACTER "
"or of INTEGER", &e->where);
- return FAILURE;
+ return false;
}
else if (e->ts.type == BT_INTEGER && e->expr_type == EXPR_VARIABLE)
{
- if (gfc_notify_std (GFC_STD_F95_DEL, "Deleted feature: ASSIGNED "
- "variable in FORMAT tag at %L", &e->where)
- == FAILURE)
- return FAILURE;
+ if (!gfc_notify_std (GFC_STD_F95_DEL, "ASSIGNED variable in "
+ "FORMAT tag at %L", &e->where))
+ return false;
if (e->symtree->n.sym->attr.assign != 1)
{
- gfc_error ("Variable '%s' at %L has not been assigned a "
+ gfc_error ("Variable %qs at %L has not been assigned a "
"format label", e->symtree->n.sym->name, &e->where);
- return FAILURE;
+ return false;
}
}
else if (e->ts.type == BT_INTEGER)
{
- gfc_error ("Scalar '%s' in FORMAT tag at %L is not an ASSIGNED "
+ gfc_error ("Scalar %qs in FORMAT tag at %L is not an ASSIGNED "
"variable", gfc_basic_typename (e->ts.type), &e->where);
- return FAILURE;
+ return false;
}
- return SUCCESS;
+ return true;
}
/* If rank is nonzero and type is not character, we allow it under GFC_STD_LEGACY.
It may be assigned an Hollerith constant. */
if (e->ts.type != BT_CHARACTER)
{
- if (gfc_notify_std (GFC_STD_LEGACY, "Extension: Non-character "
- "in FORMAT tag at %L", &e->where) == FAILURE)
- return FAILURE;
+ if (!gfc_notify_std (GFC_STD_LEGACY, "Non-character in FORMAT tag "
+ "at %L", &e->where))
+ return false;
if (e->rank == 0 && e->symtree->n.sym->as->type == AS_ASSUMED_SHAPE)
{
gfc_error ("Non-character assumed shape array element in FORMAT"
" tag at %L", &e->where);
- return FAILURE;
+ return false;
}
if (e->rank == 0 && e->symtree->n.sym->as->type == AS_ASSUMED_SIZE)
{
gfc_error ("Non-character assumed size array element in FORMAT"
" tag at %L", &e->where);
- return FAILURE;
+ return false;
}
if (e->rank == 0 && e->symtree->n.sym->attr.pointer)
{
gfc_error ("Non-character pointer array element in FORMAT tag at %L",
&e->where);
- return FAILURE;
+ return false;
}
}
- return SUCCESS;
+ return true;
}
/* Do expression resolution and type-checking on an expression tag. */
-static gfc_try
+static bool
resolve_tag (const io_tag *tag, gfc_expr *e)
{
if (e == NULL)
- return SUCCESS;
+ return true;
- if (gfc_resolve_expr (e) == FAILURE)
- return FAILURE;
+ if (!gfc_resolve_expr (e))
+ return false;
if (tag == &tag_format)
return resolve_tag_format (e);
{
gfc_error ("%s tag at %L must be of type %s", tag->name,
&e->where, gfc_basic_typename (tag->type));
- return FAILURE;
+ return false;
}
if (e->ts.type == BT_CHARACTER && e->ts.kind != gfc_default_character_kind)
{
gfc_error ("%s tag at %L must be a character string of default kind",
tag->name, &e->where);
- return FAILURE;
+ return false;
}
if (e->rank != 0)
{
gfc_error ("%s tag at %L must be scalar", tag->name, &e->where);
- return FAILURE;
+ return false;
}
if (tag == &tag_iomsg)
{
- if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: IOMSG tag at %L",
- &e->where) == FAILURE)
- return FAILURE;
+ if (!gfc_notify_std (GFC_STD_F2003, "IOMSG tag at %L", &e->where))
+ return false;
}
- if ((tag == &tag_iostat || tag == &tag_size || tag == &tag_iolength)
+ if ((tag == &tag_iostat || tag == &tag_size || tag == &tag_iolength
+ || tag == &tag_number || tag == &tag_nextrec || tag == &tag_s_recl)
&& e->ts.kind != gfc_default_integer_kind)
{
- if (gfc_notify_std (GFC_STD_F2003, "Fortran 95 requires default "
- "INTEGER in %s tag at %L", tag->name, &e->where)
- == FAILURE)
- return FAILURE;
+ if (!gfc_notify_std (GFC_STD_F2003, "Fortran 95 requires default "
+ "INTEGER in %s tag at %L", tag->name, &e->where))
+ return false;
}
- if (tag == &tag_exist && e->ts.kind != gfc_default_logical_kind)
+ if (e->ts.kind != gfc_default_logical_kind &&
+ (tag == &tag_exist || tag == &tag_named || tag == &tag_opened
+ || tag == &tag_pending))
{
- if (gfc_notify_std (GFC_STD_F2008, "Fortran 2008: Nondefault LOGICAL "
- "in %s tag at %L", tag->name, &e->where)
- == FAILURE)
- return FAILURE;
+ if (!gfc_notify_std (GFC_STD_F2008, "Non-default LOGICAL kind "
+ "in %s tag at %L", tag->name, &e->where))
+ return false;
}
if (tag == &tag_newunit)
{
- if (gfc_notify_std (GFC_STD_F2008, "Fortran 2008: NEWUNIT specifier"
- " at %L", &e->where) == FAILURE)
- return FAILURE;
+ if (!gfc_notify_std (GFC_STD_F2008, "NEWUNIT specifier at %L",
+ &e->where))
+ return false;
}
/* NEWUNIT, IOSTAT, SIZE and IOMSG are variable definition contexts. */
char context[64];
sprintf (context, _("%s tag"), tag->name);
- if (gfc_check_vardef_context (e, false, context) == FAILURE)
- return FAILURE;
+ if (!gfc_check_vardef_context (e, false, false, false, context))
+ return false;
}
if (tag == &tag_convert)
{
- if (gfc_notify_std (GFC_STD_GNU, "Extension: CONVERT tag at %L",
- &e->where) == FAILURE)
- return FAILURE;
+ if (!gfc_notify_std (GFC_STD_GNU, "CONVERT tag at %L", &e->where))
+ return false;
}
- return SUCCESS;
+ return true;
}
m = match_etag (&tag_unit, &open->unit);
if (m != MATCH_NO)
return m;
- m = match_out_tag (&tag_iomsg, &open->iomsg);
+ m = match_etag (&tag_iomsg, &open->iomsg);
if (m != MATCH_NO)
return m;
m = match_out_tag (&tag_iostat, &open->iostat);
if (m != MATCH_NO)
return m;
+ /* The following are extensions enabled with -fdec. */
+ m = match_dec_etag (&tag_e_share, &open->share);
+ if (m != MATCH_NO)
+ return m;
+ m = match_dec_etag (&tag_cc, &open->cc);
+ if (m != MATCH_NO)
+ return m;
+ m = match_dec_ftag (&tag_readonly, open);
+ if (m != MATCH_NO)
+ return m;
+ m = match_dec_ftag (&tag_shared, open);
+ if (m != MATCH_NO)
+ return m;
+ m = match_dec_ftag (&tag_noshared, open);
+ if (m != MATCH_NO)
+ return m;
+
return MATCH_NO;
}
gfc_free_expr (open->convert);
gfc_free_expr (open->asynchronous);
gfc_free_expr (open->newunit);
+ gfc_free_expr (open->share);
+ gfc_free_expr (open->cc);
free (open);
}
+static int
+compare_to_allowed_values (const char *specifier, const char *allowed[],
+ const char *allowed_f2003[],
+ const char *allowed_gnu[], gfc_char_t *value,
+ const char *statement, bool warn, locus *where,
+ int *num = NULL);
+
+
+static bool
+check_open_constraints (gfc_open *open, locus *where);
+
/* Resolve everything in a gfc_open structure. */
-gfc_try
-gfc_resolve_open (gfc_open *open)
+bool
+gfc_resolve_open (gfc_open *open, locus *where)
{
-
RESOLVE_TAG (&tag_unit, open->unit);
RESOLVE_TAG (&tag_iomsg, open->iomsg);
RESOLVE_TAG (&tag_iostat, open->iostat);
RESOLVE_TAG (&tag_e_sign, open->sign);
RESOLVE_TAG (&tag_convert, open->convert);
RESOLVE_TAG (&tag_newunit, open->newunit);
+ RESOLVE_TAG (&tag_e_share, open->share);
+ RESOLVE_TAG (&tag_cc, open->cc);
- if (gfc_reference_st_label (open->err, ST_LABEL_TARGET) == FAILURE)
- return FAILURE;
+ if (!gfc_reference_st_label (open->err, ST_LABEL_TARGET))
+ return false;
- return SUCCESS;
+ return check_open_constraints (open, where);
}
allowed in F95 or F2003, issuing an error message and returning a zero
value if it is not allowed. */
+
static int
compare_to_allowed_values (const char *specifier, const char *allowed[],
- const char *allowed_f2003[],
+ const char *allowed_f2003[],
const char *allowed_gnu[], gfc_char_t *value,
- const char *statement, bool warn)
+ const char *statement, bool warn, locus *where,
+ int *num)
{
int i;
unsigned int len;
for (i = 0; allowed[i]; i++)
if (len == strlen (allowed[i])
&& gfc_wide_strncasecmp (value, allowed[i], strlen (allowed[i])) == 0)
+ {
+ if (num)
+ *num = i;
return 1;
+ }
+
+ if (!where)
+ where = &gfc_current_locus;
for (i = 0; allowed_f2003 && allowed_f2003[i]; i++)
if (len == strlen (allowed_f2003[i])
if (n == WARNING || (warn && n == ERROR))
{
- gfc_warning ("Fortran 2003: %s specifier in %s statement at %C "
- "has value '%s'", specifier, statement,
+ gfc_warning (0, "Fortran 2003: %s specifier in %s statement at %L "
+ "has value %qs", specifier, statement, where,
allowed_f2003[i]);
return 1;
}
else
if (n == ERROR)
{
- gfc_notify_std (GFC_STD_F2003, "Fortran 2003: %s specifier in "
- "%s statement at %C has value '%s'", specifier,
- statement, allowed_f2003[i]);
+ gfc_notify_std (GFC_STD_F2003, "%s specifier in "
+ "%s statement at %L has value %qs", specifier,
+ statement, where, allowed_f2003[i]);
return 0;
}
if (n == WARNING || (warn && n == ERROR))
{
- gfc_warning ("Extension: %s specifier in %s statement at %C "
- "has value '%s'", specifier, statement,
+ gfc_warning (0, "Extension: %s specifier in %s statement at %L "
+ "has value %qs", specifier, statement, where,
allowed_gnu[i]);
return 1;
}
else
if (n == ERROR)
{
- gfc_notify_std (GFC_STD_GNU, "Extension: %s specifier in "
- "%s statement at %C has value '%s'", specifier,
- statement, allowed_gnu[i]);
+ gfc_notify_std (GFC_STD_GNU, "%s specifier in "
+ "%s statement at %L has value %qs", specifier,
+ statement, where, allowed_gnu[i]);
return 0;
}
if (warn)
{
char *s = gfc_widechar_to_char (value, -1);
- gfc_warning ("%s specifier in %s statement at %C has invalid value '%s'",
- specifier, statement, s);
+ gfc_warning (0,
+ "%s specifier in %s statement at %L has invalid value %qs",
+ specifier, statement, where, s);
free (s);
return 1;
}
else
{
char *s = gfc_widechar_to_char (value, -1);
- gfc_error ("%s specifier in %s statement at %C has invalid value '%s'",
- specifier, statement, s);
+ gfc_error ("%s specifier in %s statement at %L has invalid value %qs",
+ specifier, statement, where, s);
free (s);
return 0;
}
}
-/* Match an OPEN statement. */
+/* Check constraints on the OPEN statement.
+ Similar to check_io_constraints for data transfer statements.
+ At this point all tags have already been resolved via resolve_tag, which,
+ among other things, verifies that BT_CHARACTER tags are of default kind. */
-match
-gfc_match_open (void)
+static bool
+check_open_constraints (gfc_open *open, locus *where)
{
- gfc_open *open;
- match m;
- bool warn;
-
- m = gfc_match_char ('(');
- if (m == MATCH_NO)
- return m;
-
- open = XCNEW (gfc_open);
-
- m = match_open_element (open);
-
- if (m == MATCH_ERROR)
- goto cleanup;
- if (m == MATCH_NO)
- {
- m = gfc_match_expr (&open->unit);
- if (m == MATCH_ERROR)
- goto cleanup;
- }
-
- for (;;)
- {
- if (gfc_match_char (')') == MATCH_YES)
- break;
- if (gfc_match_char (',') != MATCH_YES)
- goto syntax;
-
- m = match_open_element (open);
- if (m == MATCH_ERROR)
- goto cleanup;
- if (m == MATCH_NO)
- goto syntax;
- }
-
- if (gfc_match_eos () == MATCH_NO)
- goto syntax;
-
- if (gfc_pure (NULL))
- {
- gfc_error ("OPEN statement not allowed in PURE procedure at %C");
- goto cleanup;
- }
-
- if (gfc_implicit_pure (NULL))
- gfc_current_ns->proc_name->attr.implicit_pure = 0;
-
- warn = (open->err || open->iostat) ? true : false;
-
- /* Checks on NEWUNIT specifier. */
- if (open->newunit)
- {
- if (open->unit)
- {
- gfc_error ("UNIT specifier not allowed with NEWUNIT at %C");
- goto cleanup;
- }
+#define warn_or_error(...) \
+{ \
+ if (warn) \
+ gfc_warning (0, __VA_ARGS__); \
+ else \
+ { \
+ gfc_error (__VA_ARGS__); \
+ return false; \
+ } \
+}
- if (!(open->file || (open->status
- && gfc_wide_strncasecmp (open->status->value.character.string,
- "scratch", 7) == 0)))
- {
- gfc_error ("NEWUNIT specifier must have FILE= "
- "or STATUS='scratch' at %C");
- goto cleanup;
- }
- }
- else if (!open->unit)
- {
- gfc_error ("OPEN statement at %C must have UNIT or NEWUNIT specified");
- goto cleanup;
- }
+ bool warn = (open->err || open->iostat) ? true : false;
/* Checks on the ACCESS specifier. */
if (open->access && open->access->expr_type == EXPR_CONSTANT)
if (!compare_to_allowed_values ("ACCESS", access_f95, access_f2003,
access_gnu,
open->access->value.character.string,
- "OPEN", warn))
- goto cleanup;
+ "OPEN", warn, &open->access->where))
+ return false;
}
/* Checks on the ACTION specifier. */
if (open->action && open->action->expr_type == EXPR_CONSTANT)
{
+ gfc_char_t *str = open->action->value.character.string;
static const char *action[] = { "READ", "WRITE", "READWRITE", NULL };
if (!compare_to_allowed_values ("ACTION", action, NULL, NULL,
- open->action->value.character.string,
- "OPEN", warn))
- goto cleanup;
+ str, "OPEN", warn, &open->action->where))
+ return false;
+
+ /* With READONLY, only allow ACTION='READ'. */
+ if (open->readonly && (gfc_wide_strlen (str) != 4
+ || gfc_wide_strncasecmp (str, "READ", 4) != 0))
+ {
+ gfc_error ("ACTION type conflicts with READONLY specifier at %L",
+ &open->action->where);
+ return false;
+ }
+ }
+
+ /* If we see READONLY and no ACTION, set ACTION='READ'. */
+ else if (open->readonly && open->action == NULL)
+ {
+ open->action = gfc_get_character_expr (gfc_default_character_kind,
+ &gfc_current_locus, "read", 4);
}
/* Checks on the ASYNCHRONOUS specifier. */
if (open->asynchronous)
{
- if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: ASYNCHRONOUS= at %C "
- "not allowed in Fortran 95") == FAILURE)
- goto cleanup;
+ if (!gfc_notify_std (GFC_STD_F2003, "ASYNCHRONOUS= at %L "
+ "not allowed in Fortran 95",
+ &open->asynchronous->where))
+ return false;
if (open->asynchronous->expr_type == EXPR_CONSTANT)
{
if (!compare_to_allowed_values ("ASYNCHRONOUS", asynchronous,
NULL, NULL, open->asynchronous->value.character.string,
- "OPEN", warn))
- goto cleanup;
+ "OPEN", warn, &open->asynchronous->where))
+ return false;
}
}
/* Checks on the BLANK specifier. */
if (open->blank)
{
- if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: BLANK= at %C "
- "not allowed in Fortran 95") == FAILURE)
- goto cleanup;
+ if (!gfc_notify_std (GFC_STD_F2003, "BLANK= at %L "
+ "not allowed in Fortran 95", &open->blank->where))
+ return false;
if (open->blank->expr_type == EXPR_CONSTANT)
{
if (!compare_to_allowed_values ("BLANK", blank, NULL, NULL,
open->blank->value.character.string,
- "OPEN", warn))
- goto cleanup;
+ "OPEN", warn, &open->blank->where))
+ return false;
}
}
+ /* Checks on the CARRIAGECONTROL specifier. */
+ if (open->cc && open->cc->expr_type == EXPR_CONSTANT)
+ {
+ static const char *cc[] = { "LIST", "FORTRAN", "NONE", NULL };
+ if (!compare_to_allowed_values ("CARRIAGECONTROL", cc, NULL, NULL,
+ open->cc->value.character.string,
+ "OPEN", warn, &open->cc->where))
+ return false;
+ }
+
/* Checks on the DECIMAL specifier. */
if (open->decimal)
{
- if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: DECIMAL= at %C "
- "not allowed in Fortran 95") == FAILURE)
- goto cleanup;
+ if (!gfc_notify_std (GFC_STD_F2003, "DECIMAL= at %L "
+ "not allowed in Fortran 95", &open->decimal->where))
+ return false;
if (open->decimal->expr_type == EXPR_CONSTANT)
{
if (!compare_to_allowed_values ("DECIMAL", decimal, NULL, NULL,
open->decimal->value.character.string,
- "OPEN", warn))
- goto cleanup;
+ "OPEN", warn, &open->decimal->where))
+ return false;
}
}
/* Checks on the DELIM specifier. */
if (open->delim)
{
- if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: DELIM= at %C "
- "not allowed in Fortran 95") == FAILURE)
- goto cleanup;
-
if (open->delim->expr_type == EXPR_CONSTANT)
{
static const char *delim[] = { "APOSTROPHE", "QUOTE", "NONE", NULL };
if (!compare_to_allowed_values ("DELIM", delim, NULL, NULL,
open->delim->value.character.string,
- "OPEN", warn))
- goto cleanup;
+ "OPEN", warn, &open->delim->where))
+ return false;
}
}
/* Checks on the ENCODING specifier. */
if (open->encoding)
{
- if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: ENCODING= at %C "
- "not allowed in Fortran 95") == FAILURE)
- goto cleanup;
-
+ if (!gfc_notify_std (GFC_STD_F2003, "ENCODING= at %L "
+ "not allowed in Fortran 95", &open->encoding->where))
+ return false;
+
if (open->encoding->expr_type == EXPR_CONSTANT)
{
static const char * encoding[] = { "DEFAULT", "UTF-8", NULL };
if (!compare_to_allowed_values ("ENCODING", encoding, NULL, NULL,
open->encoding->value.character.string,
- "OPEN", warn))
- goto cleanup;
+ "OPEN", warn, &open->encoding->where))
+ return false;
}
}
if (!compare_to_allowed_values ("FORM", form, NULL, NULL,
open->form->value.character.string,
- "OPEN", warn))
- goto cleanup;
+ "OPEN", warn, &open->form->where))
+ return false;
}
/* Checks on the PAD specifier. */
if (!compare_to_allowed_values ("PAD", pad, NULL, NULL,
open->pad->value.character.string,
- "OPEN", warn))
- goto cleanup;
+ "OPEN", warn, &open->pad->where))
+ return false;
}
/* Checks on the POSITION specifier. */
if (!compare_to_allowed_values ("POSITION", position, NULL, NULL,
open->position->value.character.string,
- "OPEN", warn))
- goto cleanup;
+ "OPEN", warn, &open->position->where))
+ return false;
}
/* Checks on the ROUND specifier. */
if (open->round)
{
- if (gfc_notify_std (GFC_STD_F2003, "Fortran F2003: ROUND= at %C "
- "not allowed in Fortran 95") == FAILURE)
- goto cleanup;
+ if (!gfc_notify_std (GFC_STD_F2003, "ROUND= at %L "
+ "not allowed in Fortran 95", &open->round->where))
+ return false;
if (open->round->expr_type == EXPR_CONSTANT)
{
if (!compare_to_allowed_values ("ROUND", round, NULL, NULL,
open->round->value.character.string,
- "OPEN", warn))
- goto cleanup;
+ "OPEN", warn, &open->round->where))
+ return false;
}
}
+ /* Checks on the SHARE specifier. */
+ if (open->share && open->share->expr_type == EXPR_CONSTANT)
+ {
+ static const char *share[] = { "DENYNONE", "DENYRW", NULL };
+ if (!compare_to_allowed_values ("SHARE", share, NULL, NULL,
+ open->share->value.character.string,
+ "OPEN", warn, &open->share->where))
+ return false;
+ }
+
/* Checks on the SIGN specifier. */
- if (open->sign)
+ if (open->sign)
{
- if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: SIGN= at %C "
- "not allowed in Fortran 95") == FAILURE)
- goto cleanup;
+ if (!gfc_notify_std (GFC_STD_F2003, "SIGN= at %L "
+ "not allowed in Fortran 95", &open->sign->where))
+ return false;
if (open->sign->expr_type == EXPR_CONSTANT)
{
if (!compare_to_allowed_values ("SIGN", sign, NULL, NULL,
open->sign->value.character.string,
- "OPEN", warn))
- goto cleanup;
+ "OPEN", warn, &open->sign->where))
+ return false;
}
}
-#define warn_or_error(...) \
-{ \
- if (warn) \
- gfc_warning (__VA_ARGS__); \
- else \
- { \
- gfc_error (__VA_ARGS__); \
- goto cleanup; \
- } \
-}
-
/* Checks on the RECL specifier. */
if (open->recl && open->recl->expr_type == EXPR_CONSTANT
&& open->recl->ts.type == BT_INTEGER
&& mpz_sgn (open->recl->value.integer) != 1)
{
- warn_or_error ("RECL in OPEN statement at %C must be positive");
+ warn_or_error (G_("RECL in OPEN statement at %L must be positive"),
+ &open->recl->where);
}
/* Checks on the STATUS specifier. */
if (!compare_to_allowed_values ("STATUS", status, NULL, NULL,
open->status->value.character.string,
- "OPEN", warn))
- goto cleanup;
+ "OPEN", warn, &open->status->where))
+ return false;
/* F2003, 9.4.5: If the STATUS= specifier has the value NEW or REPLACE,
the FILE= specifier shall appear. */
{
char *s = gfc_widechar_to_char (open->status->value.character.string,
-1);
- warn_or_error ("The STATUS specified in OPEN statement at %C is "
- "'%s' and no FILE specifier is present", s);
+ warn_or_error (G_("The STATUS specified in OPEN statement at %L is "
+ "%qs and no FILE specifier is present"),
+ &open->status->where, s);
free (s);
}
if (gfc_wide_strncasecmp (open->status->value.character.string,
"scratch", 7) == 0 && open->file)
{
- warn_or_error ("The STATUS specified in OPEN statement at %C "
+ warn_or_error (G_("The STATUS specified in OPEN statement at %L "
"cannot have the value SCRATCH if a FILE specifier "
- "is present");
+ "is present"), &open->status->where);
}
}
+ /* Checks on NEWUNIT specifier. */
+ if (open->newunit)
+ {
+ if (open->unit)
+ {
+ gfc_error ("UNIT specifier not allowed with NEWUNIT at %L",
+ &open->newunit->where);
+ return false;
+ }
+
+ if (!open->file &&
+ (!open->status ||
+ (open->status->expr_type == EXPR_CONSTANT
+ && gfc_wide_strncasecmp (open->status->value.character.string,
+ "scratch", 7) != 0)))
+ {
+ gfc_error ("NEWUNIT specifier must have FILE= "
+ "or STATUS='scratch' at %L", &open->newunit->where);
+ return false;
+ }
+ }
+ else if (!open->unit)
+ {
+ gfc_error ("OPEN statement at %L must have UNIT or NEWUNIT specified",
+ where);
+ return false;
+ }
+
/* Things that are not allowed for unformatted I/O. */
if (open->form && open->form->expr_type == EXPR_CONSTANT
&& (open->delim || open->decimal || open->encoding || open->round
&& gfc_wide_strncasecmp (open->form->value.character.string,
"unformatted", 11) == 0)
{
- const char *spec = (open->delim ? "DELIM "
- : (open->pad ? "PAD " : open->blank
- ? "BLANK " : ""));
+ locus *loc;
+ const char *spec;
+ if (open->delim)
+ {
+ loc = &open->delim->where;
+ spec = "DELIM ";
+ }
+ else if (open->pad)
+ {
+ loc = &open->pad->where;
+ spec = "PAD ";
+ }
+ else if (open->blank)
+ {
+ loc = &open->blank->where;
+ spec = "BLANK ";
+ }
+ else
+ {
+ loc = where;
+ spec = "";
+ }
- warn_or_error ("%s specifier at %C not allowed in OPEN statement for "
- "unformatted I/O", spec);
+ warn_or_error (G_("%s specifier at %L not allowed in OPEN statement for "
+ "unformatted I/O"), spec, loc);
}
if (open->recl && open->access && open->access->expr_type == EXPR_CONSTANT
&& gfc_wide_strncasecmp (open->access->value.character.string,
"stream", 6) == 0)
{
- warn_or_error ("RECL specifier not allowed in OPEN statement at %C for "
- "stream I/O");
+ warn_or_error (G_("RECL specifier not allowed in OPEN statement at %L for "
+ "stream I/O"), &open->recl->where);
+ }
+
+ if (open->position
+ && open->access && open->access->expr_type == EXPR_CONSTANT
+ && !(gfc_wide_strncasecmp (open->access->value.character.string,
+ "sequential", 10) == 0
+ || gfc_wide_strncasecmp (open->access->value.character.string,
+ "stream", 6) == 0
+ || gfc_wide_strncasecmp (open->access->value.character.string,
+ "append", 6) == 0))
+ {
+ warn_or_error (G_("POSITION specifier in OPEN statement at %L only allowed "
+ "for stream or sequential ACCESS"), &open->position->where);
+ }
+
+ return true;
+#undef warn_or_error
+}
+
+
+/* Match an OPEN statement. */
+
+match
+gfc_match_open (void)
+{
+ gfc_open *open;
+ match m;
+
+ m = gfc_match_char ('(');
+ if (m == MATCH_NO)
+ return m;
+
+ open = XCNEW (gfc_open);
+
+ m = match_open_element (open);
+
+ if (m == MATCH_ERROR)
+ goto cleanup;
+ if (m == MATCH_NO)
+ {
+ m = gfc_match_expr (&open->unit);
+ if (m == MATCH_ERROR)
+ goto cleanup;
}
- if (open->position
- && open->access && open->access->expr_type == EXPR_CONSTANT
- && !(gfc_wide_strncasecmp (open->access->value.character.string,
- "sequential", 10) == 0
- || gfc_wide_strncasecmp (open->access->value.character.string,
- "stream", 6) == 0
- || gfc_wide_strncasecmp (open->access->value.character.string,
- "append", 6) == 0))
+ for (;;)
+ {
+ if (gfc_match_char (')') == MATCH_YES)
+ break;
+ if (gfc_match_char (',') != MATCH_YES)
+ goto syntax;
+
+ m = match_open_element (open);
+ if (m == MATCH_ERROR)
+ goto cleanup;
+ if (m == MATCH_NO)
+ goto syntax;
+ }
+
+ if (gfc_match_eos () == MATCH_NO)
+ goto syntax;
+
+ if (gfc_pure (NULL))
{
- warn_or_error ("POSITION specifier in OPEN statement at %C only allowed "
- "for stream or sequential ACCESS");
+ gfc_error ("OPEN statement not allowed in PURE procedure at %C");
+ goto cleanup;
}
-#undef warn_or_error
+ gfc_unset_implicit_pure (NULL);
new_st.op = EXEC_OPEN;
new_st.ext.open = open;
m = match_etag (&tag_status, &close->status);
if (m != MATCH_NO)
return m;
- m = match_out_tag (&tag_iomsg, &close->iomsg);
+ m = match_etag (&tag_iomsg, &close->iomsg);
if (m != MATCH_NO)
return m;
m = match_out_tag (&tag_iostat, &close->iostat);
{
gfc_close *close;
match m;
- bool warn;
m = gfc_match_char ('(');
if (m == MATCH_NO)
goto cleanup;
}
- if (gfc_implicit_pure (NULL))
- gfc_current_ns->proc_name->attr.implicit_pure = 0;
-
- warn = (close->iostat || close->err) ? true : false;
-
- /* Checks on the STATUS specifier. */
- if (close->status && close->status->expr_type == EXPR_CONSTANT)
- {
- static const char *status[] = { "KEEP", "DELETE", NULL };
-
- if (!compare_to_allowed_values ("STATUS", status, NULL, NULL,
- close->status->value.character.string,
- "CLOSE", warn))
- goto cleanup;
- }
+ gfc_unset_implicit_pure (NULL);
new_st.op = EXEC_CLOSE;
new_st.ext.close = close;
}
-/* Resolve everything in a gfc_close structure. */
-
-gfc_try
-gfc_resolve_close (gfc_close *close)
+static bool
+check_close_constraints (gfc_close *close, locus *where)
{
- RESOLVE_TAG (&tag_unit, close->unit);
- RESOLVE_TAG (&tag_iomsg, close->iomsg);
- RESOLVE_TAG (&tag_iostat, close->iostat);
- RESOLVE_TAG (&tag_status, close->status);
+ bool warn = (close->iostat || close->err) ? true : false;
- if (gfc_reference_st_label (close->err, ST_LABEL_TARGET) == FAILURE)
- return FAILURE;
+ if (close->unit == NULL)
+ {
+ gfc_error ("CLOSE statement at %L requires a UNIT number", where);
+ return false;
+ }
if (close->unit->expr_type == EXPR_CONSTANT
&& close->unit->ts.type == BT_INTEGER
&close->unit->where);
}
- return SUCCESS;
+ /* Checks on the STATUS specifier. */
+ if (close->status && close->status->expr_type == EXPR_CONSTANT)
+ {
+ static const char *status[] = { "KEEP", "DELETE", NULL };
+
+ if (!compare_to_allowed_values ("STATUS", status, NULL, NULL,
+ close->status->value.character.string,
+ "CLOSE", warn, &close->status->where))
+ return false;
+ }
+
+ return true;
+}
+
+/* Resolve everything in a gfc_close structure. */
+
+bool
+gfc_resolve_close (gfc_close *close, locus *where)
+{
+ RESOLVE_TAG (&tag_unit, close->unit);
+ RESOLVE_TAG (&tag_iomsg, close->iomsg);
+ RESOLVE_TAG (&tag_iostat, close->iostat);
+ RESOLVE_TAG (&tag_status, close->status);
+
+ if (!gfc_reference_st_label (close->err, ST_LABEL_TARGET))
+ return false;
+
+ return check_close_constraints (close, where);
}
m = match_etag (&tag_unit, &fp->unit);
if (m != MATCH_NO)
return m;
- m = match_out_tag (&tag_iomsg, &fp->iomsg);
+ m = match_etag (&tag_iomsg, &fp->iomsg);
if (m != MATCH_NO)
return m;
m = match_out_tag (&tag_iostat, &fp->iostat);
m = match_file_element (fp);
if (m == MATCH_ERROR)
- goto done;
+ goto cleanup;
if (m == MATCH_NO)
{
m = gfc_match_expr (&fp->unit);
- if (m == MATCH_ERROR)
- goto done;
- if (m == MATCH_NO)
+ if (m == MATCH_ERROR || m == MATCH_NO)
goto syntax;
}
goto cleanup;
}
- if (gfc_implicit_pure (NULL))
- gfc_current_ns->proc_name->attr.implicit_pure = 0;
+ gfc_unset_implicit_pure (NULL);
new_st.op = op;
new_st.ext.filepos = fp;
}
-gfc_try
-gfc_resolve_filepos (gfc_filepos *fp)
+bool
+gfc_resolve_filepos (gfc_filepos *fp, locus *where)
{
RESOLVE_TAG (&tag_unit, fp->unit);
RESOLVE_TAG (&tag_iostat, fp->iostat);
RESOLVE_TAG (&tag_iomsg, fp->iomsg);
- if (gfc_reference_st_label (fp->err, ST_LABEL_TARGET) == FAILURE)
- return FAILURE;
+
+ if (!fp->unit && (fp->iostat || fp->iomsg || fp->err))
+ {
+ gfc_error ("UNIT number missing in statement at %L", where);
+ return false;
+ }
+
+ if (!gfc_reference_st_label (fp->err, ST_LABEL_TARGET))
+ return false;
if (fp->unit->expr_type == EXPR_CONSTANT
&& fp->unit->ts.type == BT_INTEGER
{
gfc_error ("UNIT number in statement at %L must be non-negative",
&fp->unit->where);
+ return false;
}
- return SUCCESS;
+ return true;
}
match
gfc_match_flush (void)
{
- if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: FLUSH statement at %C")
- == FAILURE)
+ if (!gfc_notify_std (GFC_STD_F2003, "FLUSH statement at %C"))
return MATCH_ERROR;
return match_filepos (ST_FLUSH, EXEC_FLUSH);
match_dt_unit (io_kind k, gfc_dt *dt)
{
gfc_expr *e;
+ char c;
if (gfc_match_char ('*') == MATCH_YES)
{
goto conflict;
dt->io_unit = default_unit (k);
+
+ c = gfc_peek_ascii_char ();
+ if (c == ')')
+ gfc_error_now ("Missing format with default unit at %C");
+
return MATCH_YES;
}
if ((m = gfc_match_st_label (&label)) == MATCH_YES)
{
- if (dt->format_expr != NULL || dt->format_label != NULL)
+ char c;
+
+ /* Need to check if the format label is actually either an operand
+ to a user-defined operator or is a kind type parameter. That is,
+ print 2.ip.8 ! .ip. is a user-defined operator return CHARACTER.
+ print 1_'(I0)', i ! 1_'(I0)' is a default character string. */
+
+ gfc_gobble_whitespace ();
+ c = gfc_peek_ascii_char ();
+ if (c == '.' || c == '_')
+ gfc_current_locus = where;
+ else
{
- gfc_free_st_label (label);
- goto conflict;
- }
+ if (dt->format_expr != NULL || dt->format_label != NULL)
+ {
+ gfc_free_st_label (label);
+ goto conflict;
+ }
- if (gfc_reference_st_label (label, ST_LABEL_FORMAT) == FAILURE)
- return MATCH_ERROR;
+ if (!gfc_reference_st_label (label, ST_LABEL_FORMAT))
+ return MATCH_ERROR;
- dt->format_label = label;
- return MATCH_YES;
+ dt->format_label = label;
+ return MATCH_YES;
+ }
}
else if (m == MATCH_ERROR)
/* The label was zero or too large. Emit the correct diagnosis. */
return MATCH_ERROR;
}
+/* Check for formatted read and write DTIO procedures. */
+
+static bool
+dtio_procs_present (gfc_symbol *sym, io_kind k)
+{
+ gfc_symbol *derived;
+
+ if (sym && sym->ts.u.derived)
+ {
+ if (sym->ts.type == BT_CLASS && CLASS_DATA (sym))
+ derived = CLASS_DATA (sym)->ts.u.derived;
+ else if (sym->ts.type == BT_DERIVED)
+ derived = sym->ts.u.derived;
+ else
+ return false;
+ if ((k == M_WRITE || k == M_PRINT) &&
+ (gfc_find_specific_dtio_proc (derived, true, true) != NULL))
+ return true;
+ if ((k == M_READ) &&
+ (gfc_find_specific_dtio_proc (derived, false, true) != NULL))
+ return true;
+ }
+ return false;
+}
/* Traverse a namelist that is part of a READ statement to make sure
that none of the variables in the namelist are INTENT(IN). Returns
for (p = sym->namelist; p; p = p->next)
if (p->sym->attr.intent == INTENT_IN)
{
- gfc_error ("Symbol '%s' in namelist '%s' is INTENT(IN) at %C",
+ gfc_error ("Symbol %qs in namelist %qs is INTENT(IN) at %C",
p->sym->name, sym->name);
return 1;
}
if (sym == NULL || sym->attr.flavor != FL_NAMELIST)
{
- gfc_error ("Symbol '%s' at %C must be a NAMELIST group name",
+ gfc_error ("Symbol %qs at %C must be a NAMELIST group name",
sym != NULL ? sym->name : name);
return MATCH_ERROR;
}
m = match_etag (&tag_spos, &dt->pos);
if (m != MATCH_NO)
return m;
- m = match_out_tag (&tag_iomsg, &dt->iomsg);
+ m = match_etag (&tag_iomsg, &dt->iomsg);
if (m != MATCH_NO)
return m;
+
m = match_out_tag (&tag_iostat, &dt->iostat);
if (m != MATCH_NO)
return m;
}
+static const char *
+io_kind_name (io_kind k);
+
+static bool
+check_io_constraints (io_kind k, gfc_dt *dt, gfc_code *io_code,
+ locus *spec_end);
+
/* Resolve everything in a gfc_dt structure. */
-gfc_try
-gfc_resolve_dt (gfc_dt *dt, locus *loc)
+bool
+gfc_resolve_dt (gfc_code *dt_code, gfc_dt *dt, locus *loc)
{
gfc_expr *e;
io_kind k;
RESOLVE_TAG (&tag_e_decimal, dt->decimal);
RESOLVE_TAG (&tag_e_async, dt->asynchronous);
+ /* Check I/O constraints.
+ To validate NAMELIST we need to check if we were also given an I/O list,
+ which is stored in code->block->next with op EXEC_TRANSFER.
+ Note that the I/O list was already resolved from resolve_transfer. */
+ gfc_code *io_code = NULL;
+ if (dt_code && dt_code->block && dt_code->block->next
+ && dt_code->block->next->op == EXEC_TRANSFER)
+ io_code = dt_code->block->next;
+
+ if (!check_io_constraints (k, dt, io_code, loc))
+ return false;
+
e = dt->io_unit;
if (e == NULL)
{
gfc_error ("UNIT not specified at %L", loc);
- return FAILURE;
+ return false;
}
- if (gfc_resolve_expr (e) == SUCCESS
+ if (e->symtree && e->symtree->n.sym->attr.flavor == FL_PARAMETER
+ && e->ts.type == BT_CHARACTER)
+ {
+ gfc_error ("UNIT specification at %L must "
+ "not be a character PARAMETER", &e->where);
+ return false;
+ }
+
+ if (gfc_resolve_expr (e)
&& (e->ts.type != BT_INTEGER
&& (e->ts.type != BT_CHARACTER || e->expr_type != EXPR_VARIABLE)))
{
{
gfc_error ("UNIT specification at %L must be an INTEGER expression "
"or a CHARACTER variable", &e->where);
- return FAILURE;
+ return false;
}
else
{
{
gfc_error ("Invalid form of WRITE statement at %L, UNIT required",
&dt->extra_comma->where);
- return FAILURE;
+ return false;
}
}
}
if (gfc_has_vector_index (e))
{
gfc_error ("Internal unit with vector subscript at %L", &e->where);
- return FAILURE;
+ return false;
}
/* If we are writing, make sure the internal unit can be changed. */
gcc_assert (k != M_PRINT);
if (k == M_WRITE
- && gfc_check_vardef_context (e, false, _("internal unit in WRITE"))
- == FAILURE)
- return FAILURE;
+ && !gfc_check_vardef_context (e, false, false, false,
+ _("internal unit in WRITE")))
+ return false;
}
if (e->rank && e->ts.type != BT_CHARACTER)
{
gfc_error ("External IO UNIT cannot be an array at %L", &e->where);
- return FAILURE;
+ return false;
}
if (e->expr_type == EXPR_CONSTANT && e->ts.type == BT_INTEGER
{
gfc_error ("UNIT number in statement at %L must be non-negative",
&e->where);
- return FAILURE;
+ return false;
}
/* If we are reading and have a namelist, check that all namelist symbols
can appear in a variable definition context. */
- if (k == M_READ && dt->namelist)
+ if (dt->namelist)
{
gfc_namelist* n;
for (n = dt->namelist->namelist; n; n = n->next)
{
gfc_expr* e;
- gfc_try t;
+ bool t;
- e = gfc_get_variable_expr (gfc_find_sym_in_symtree (n->sym));
- t = gfc_check_vardef_context (e, false, NULL);
- gfc_free_expr (e);
+ if (k == M_READ)
+ {
+ e = gfc_get_variable_expr (gfc_find_sym_in_symtree (n->sym));
+ t = gfc_check_vardef_context (e, false, false, false, NULL);
+ gfc_free_expr (e);
+
+ if (!t)
+ {
+ gfc_error ("NAMELIST %qs in READ statement at %L contains"
+ " the symbol %qs which may not appear in a"
+ " variable definition context",
+ dt->namelist->name, loc, n->sym->name);
+ return false;
+ }
+ }
- if (t == FAILURE)
+ t = dtio_procs_present (n->sym, k);
+
+ if (n->sym->ts.type == BT_CLASS && !t)
+ {
+ gfc_error ("NAMELIST object %qs in namelist %qs at %L is "
+ "polymorphic and requires a defined input/output "
+ "procedure", n->sym->name, dt->namelist->name, loc);
+ return false;
+ }
+
+ if ((n->sym->ts.type == BT_DERIVED)
+ && (n->sym->ts.u.derived->attr.alloc_comp
+ || n->sym->ts.u.derived->attr.pointer_comp))
{
- gfc_error ("NAMELIST '%s' in READ statement at %L contains"
- " the symbol '%s' which may not appear in a"
- " variable definition context",
- dt->namelist->name, loc, n->sym->name);
- return FAILURE;
+ if (!gfc_notify_std (GFC_STD_F2003, "NAMELIST object %qs in "
+ "namelist %qs at %L with ALLOCATABLE "
+ "or POINTER components", n->sym->name,
+ dt->namelist->name, loc))
+ return false;
+
+ if (!t)
+ {
+ gfc_error ("NAMELIST object %qs in namelist %qs at %L has "
+ "ALLOCATABLE or POINTER components and thus requires "
+ "a defined input/output procedure", n->sym->name,
+ dt->namelist->name, loc);
+ return false;
+ }
}
}
}
if (dt->extra_comma
- && gfc_notify_std (GFC_STD_GNU, "Extension: Comma before i/o "
- "item list at %L", &dt->extra_comma->where) == FAILURE)
- return FAILURE;
+ && !gfc_notify_std (GFC_STD_LEGACY, "Comma before i/o item list at %L",
+ &dt->extra_comma->where))
+ return false;
if (dt->err)
{
- if (gfc_reference_st_label (dt->err, ST_LABEL_TARGET) == FAILURE)
- return FAILURE;
+ if (!gfc_reference_st_label (dt->err, ST_LABEL_TARGET))
+ return false;
if (dt->err->defined == ST_LABEL_UNKNOWN)
{
gfc_error ("ERR tag label %d at %L not defined",
dt->err->value, &dt->err_where);
- return FAILURE;
+ return false;
}
}
if (dt->end)
{
- if (gfc_reference_st_label (dt->end, ST_LABEL_TARGET) == FAILURE)
- return FAILURE;
+ if (!gfc_reference_st_label (dt->end, ST_LABEL_TARGET))
+ return false;
if (dt->end->defined == ST_LABEL_UNKNOWN)
{
gfc_error ("END tag label %d at %L not defined",
dt->end->value, &dt->end_where);
- return FAILURE;
+ return false;
}
}
if (dt->eor)
{
- if (gfc_reference_st_label (dt->eor, ST_LABEL_TARGET) == FAILURE)
- return FAILURE;
+ if (!gfc_reference_st_label (dt->eor, ST_LABEL_TARGET))
+ return false;
if (dt->eor->defined == ST_LABEL_UNKNOWN)
{
gfc_error ("EOR tag label %d at %L not defined",
dt->eor->value, &dt->eor_where);
- return FAILURE;
+ return false;
}
}
&& dt->format_label->defined == ST_LABEL_UNKNOWN)
{
gfc_error ("FORMAT label %d at %L not defined", dt->format_label->value,
- &dt->format_label->where);
- return FAILURE;
+ loc);
+ return false;
}
- return SUCCESS;
+ return true;
}
if (gfc_match_char (')') != MATCH_YES)
goto syntax;
- new_code = gfc_get_code ();
- new_code->op = EXEC_DO;
+ new_code = gfc_get_code (EXEC_DO);
new_code->ext.iterator = iter;
- new_code->block = gfc_get_code ();
- new_code->block->op = EXEC_DO;
+ new_code->block = gfc_get_code (EXEC_DO);
new_code->block->next = head;
*result = new_code;
{
m = gfc_match_variable (&expr, 0);
if (m == MATCH_NO)
- gfc_error ("Expected variable in READ statement at %C");
+ {
+ gfc_error ("Expecting variable in READ statement at %C");
+ m = MATCH_ERROR;
+ }
+
+ if (m == MATCH_YES && expr->expr_type == EXPR_CONSTANT)
+ {
+ gfc_error ("Expecting variable or io-implied-do in READ statement "
+ "at %L", &expr->where);
+ m = MATCH_ERROR;
+ }
+
+ if (m == MATCH_YES
+ && expr->expr_type == EXPR_VARIABLE
+ && expr->symtree->n.sym->attr.external)
+ {
+ gfc_error ("Expecting variable or io-implied-do at %L",
+ &expr->where);
+ m = MATCH_ERROR;
+ }
}
else
{
if (m == MATCH_NO)
gfc_error ("Expected expression in %s statement at %C",
io_kind_name (k));
+
+ if (m == MATCH_YES && expr->ts.type == BT_BOZ)
+ {
+ if (gfc_invalid_boz (G_("BOZ literal constant at %L cannot appear in"
+ " an output IO list"), &gfc_current_locus))
+ return MATCH_ERROR;
+ if (!gfc_boz2int (expr, gfc_max_integer_kind))
+ return MATCH_ERROR;
+ };
}
if (m == MATCH_YES && k == M_READ && gfc_check_do_variable (expr->symtree))
return MATCH_ERROR;
}
- cp = gfc_get_code ();
- cp->op = EXEC_TRANSFER;
+ cp = gfc_get_code (EXEC_TRANSFER);
cp->expr1 = expr;
if (k != M_INQUIRE)
cp->ext.dt = current_dt;
if (io_code == NULL)
io_code = new_st.block;
- c = gfc_get_code ();
- c->op = EXEC_DT_END;
+ c = gfc_get_code (EXEC_DT_END);
/* Point to structure that is already there */
c->ext.dt = new_st.ext.dt;
/* Check the constraints for a data transfer statement. The majority of the
- constraints appearing in 9.4 of the standard appear here. Some are handled
- in resolve_tag and others in gfc_resolve_dt. */
+ constraints appearing in 9.4 of the standard appear here.
-static match
+ Tag expressions are already resolved by resolve_tag, which includes
+ verifying the type, that they are scalar, and verifying that BT_CHARACTER
+ tags are of default kind. */
+
+static bool
check_io_constraints (io_kind k, gfc_dt *dt, gfc_code *io_code,
locus *spec_end)
{
-#define io_constraint(condition,msg,arg)\
+#define io_constraint(condition, msg, arg)\
if (condition) \
{\
- gfc_error(msg,arg);\
- m = MATCH_ERROR;\
+ if ((arg)->lb != NULL)\
+ gfc_error ((msg), (arg));\
+ else\
+ gfc_error ((msg), spec_end);\
+ return false;\
}
- match m;
gfc_expr *expr;
gfc_symbol *sym = NULL;
bool warn, unformatted;
unformatted = dt->format_expr == NULL && dt->format_label == NULL
&& dt->namelist == NULL;
- m = MATCH_YES;
-
expr = dt->io_unit;
if (expr && expr->expr_type == EXPR_VARIABLE
&& expr->ts.type == BT_CHARACTER)
io_constraint (dt->rec != NULL,
"REC tag at %L is incompatible with internal file",
&dt->rec->where);
-
+
io_constraint (dt->pos != NULL,
"POS tag at %L is incompatible with internal file",
&dt->pos->where);
if (dt->namelist != NULL)
{
- if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: Internal file "
- "at %L with namelist", &expr->where)
- == FAILURE)
- m = MATCH_ERROR;
+ if (!gfc_notify_std (GFC_STD_F2003, "Internal file at %L with "
+ "namelist", &expr->where))
+ return false;
}
io_constraint (dt->advance != NULL,
if (expr && expr->ts.type != BT_CHARACTER)
{
- io_constraint (gfc_pure (NULL) && (k == M_READ || k == M_WRITE),
- "IO UNIT in %s statement at %C must be "
+ if (gfc_pure (NULL) && (k == M_READ || k == M_WRITE))
+ {
+ gfc_error ("IO UNIT in %s statement at %L must be "
"an internal file in a PURE procedure",
- io_kind_name (k));
-
- if (gfc_implicit_pure (NULL) && (k == M_READ || k == M_WRITE))
- gfc_current_ns->proc_name->attr.implicit_pure = 0;
-
- }
-
- if (k != M_READ)
- {
- io_constraint (dt->end, "END tag not allowed with output at %L",
- &dt->end_where);
-
- io_constraint (dt->eor, "EOR tag not allowed with output at %L",
- &dt->eor_where);
-
- io_constraint (dt->blank, "BLANK= specifier not allowed with output at %L",
- &dt->blank->where);
-
- io_constraint (dt->pad, "PAD= specifier not allowed with output at %L",
- &dt->pad->where);
-
- io_constraint (dt->size, "SIZE= specifier not allowed with output at %L",
- &dt->size->where);
- }
- else
- {
- io_constraint (dt->size && dt->advance == NULL,
- "SIZE tag at %L requires an ADVANCE tag",
- &dt->size->where);
+ io_kind_name (k), &expr->where);
+ return false;
+ }
- io_constraint (dt->eor && dt->advance == NULL,
- "EOR tag at %L requires an ADVANCE tag",
- &dt->eor_where);
+ if (k == M_READ || k == M_WRITE)
+ gfc_unset_implicit_pure (NULL);
}
- if (dt->asynchronous)
+ if (dt->asynchronous)
{
+ int num = -1;
static const char * asynchronous[] = { "YES", "NO", NULL };
- if (gfc_reduce_init_expr (dt->asynchronous) != SUCCESS)
- {
- gfc_error ("ASYNCHRONOUS= specifier at %L must be an initialization "
- "expression", &dt->asynchronous->where);
- return MATCH_ERROR;
- }
+ /* Note: gfc_reduce_init_expr reports an error if not init-expr. */
+ if (!gfc_reduce_init_expr (dt->asynchronous))
+ return false;
if (!compare_to_allowed_values
("ASYNCHRONOUS", asynchronous, NULL, NULL,
dt->asynchronous->value.character.string,
- io_kind_name (k), warn))
- return MATCH_ERROR;
+ io_kind_name (k), warn, &dt->asynchronous->where, &num))
+ return false;
+
+ gcc_checking_assert (num != -1);
+
+ /* For "YES", mark related symbols as asynchronous. */
+ if (num == 0)
+ {
+ /* SIZE variable. */
+ if (dt->size)
+ dt->size->symtree->n.sym->attr.asynchronous = 1;
+
+ /* Variables in a NAMELIST. */
+ if (dt->namelist)
+ for (gfc_namelist *nl = dt->namelist->namelist; nl; nl = nl->next)
+ nl->sym->attr.asynchronous = 1;
+
+ /* Variables in an I/O list. */
+ for (gfc_code *xfer = io_code; xfer && xfer->op == EXEC_TRANSFER;
+ xfer = xfer->next)
+ {
+ gfc_expr *expr = xfer->expr1;
+ while (expr != NULL && expr->expr_type == EXPR_OP
+ && expr->value.op.op == INTRINSIC_PARENTHESES)
+ expr = expr->value.op.op1;
+
+ if (expr && expr->expr_type == EXPR_VARIABLE)
+ expr->symtree->n.sym->attr.asynchronous = 1;
+ }
+ }
}
if (dt->id)
if (dt->decimal)
{
- if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: DECIMAL= at %C "
- "not allowed in Fortran 95") == FAILURE)
- return MATCH_ERROR;
+ if (!gfc_notify_std (GFC_STD_F2003, "DECIMAL= at %L "
+ "not allowed in Fortran 95", &dt->decimal->where))
+ return false;
if (dt->decimal->expr_type == EXPR_CONSTANT)
{
if (!compare_to_allowed_values ("DECIMAL", decimal, NULL, NULL,
dt->decimal->value.character.string,
- io_kind_name (k), warn))
- return MATCH_ERROR;
+ io_kind_name (k), warn,
+ &dt->decimal->where))
+ return false;
io_constraint (unformatted,
"the DECIMAL= specifier at %L must be with an "
"explicit format expression", &dt->decimal->where);
}
}
-
+
if (dt->blank)
{
- if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: BLANK= at %C "
- "not allowed in Fortran 95") == FAILURE)
- return MATCH_ERROR;
+ if (!gfc_notify_std (GFC_STD_F2003, "BLANK= at %L "
+ "not allowed in Fortran 95", &dt->blank->where))
+ return false;
if (dt->blank->expr_type == EXPR_CONSTANT)
{
static const char * blank[] = { "NULL", "ZERO", NULL };
+
if (!compare_to_allowed_values ("BLANK", blank, NULL, NULL,
dt->blank->value.character.string,
- io_kind_name (k), warn))
- return MATCH_ERROR;
+ io_kind_name (k), warn,
+ &dt->blank->where))
+ return false;
io_constraint (unformatted,
"the BLANK= specifier at %L must be with an "
if (dt->pad)
{
- if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: PAD= at %C "
- "not allowed in Fortran 95") == FAILURE)
- return MATCH_ERROR;
+ if (!gfc_notify_std (GFC_STD_F2003, "PAD= at %L "
+ "not allowed in Fortran 95", &dt->pad->where))
+ return false;
if (dt->pad->expr_type == EXPR_CONSTANT)
{
if (!compare_to_allowed_values ("PAD", pad, NULL, NULL,
dt->pad->value.character.string,
- io_kind_name (k), warn))
- return MATCH_ERROR;
+ io_kind_name (k), warn,
+ &dt->pad->where))
+ return false;
io_constraint (unformatted,
"the PAD= specifier at %L must be with an "
if (dt->round)
{
- if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: ROUND= at %C "
- "not allowed in Fortran 95") == FAILURE)
- return MATCH_ERROR;
+ if (!gfc_notify_std (GFC_STD_F2003, "ROUND= at %L "
+ "not allowed in Fortran 95", &dt->round->where))
+ return false;
if (dt->round->expr_type == EXPR_CONSTANT)
{
if (!compare_to_allowed_values ("ROUND", round, NULL, NULL,
dt->round->value.character.string,
- io_kind_name (k), warn))
- return MATCH_ERROR;
+ io_kind_name (k), warn,
+ &dt->round->where))
+ return false;
}
}
-
+
if (dt->sign)
{
/* When implemented, change the following to use gfc_notify_std F2003.
- if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: SIGN= at %C "
- "not allowed in Fortran 95") == FAILURE)
- return MATCH_ERROR; */
+ if (gfc_notify_std (GFC_STD_F2003, "SIGN= at %L "
+ "not allowed in Fortran 95", &dt->sign->where) == false)
+ return false; */
+
if (dt->sign->expr_type == EXPR_CONSTANT)
{
static const char * sign[] = { "PLUS", "SUPPRESS", "PROCESSOR_DEFINED",
if (!compare_to_allowed_values ("SIGN", sign, NULL, NULL,
dt->sign->value.character.string,
- io_kind_name (k), warn))
- return MATCH_ERROR;
+ io_kind_name (k), warn, &dt->sign->where))
+ return false;
io_constraint (unformatted,
"SIGN= specifier at %L must be with an "
if (dt->delim)
{
- if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: DELIM= at %C "
- "not allowed in Fortran 95") == FAILURE)
- return MATCH_ERROR;
+ if (!gfc_notify_std (GFC_STD_F2003, "DELIM= at %L "
+ "not allowed in Fortran 95", &dt->delim->where))
+ return false;
if (dt->delim->expr_type == EXPR_CONSTANT)
{
if (!compare_to_allowed_values ("DELIM", delim, NULL, NULL,
dt->delim->value.character.string,
- io_kind_name (k), warn))
- return MATCH_ERROR;
+ io_kind_name (k), warn,
+ &dt->delim->where))
+ return false;
io_constraint (k == M_READ,
"DELIM= specifier at %L not allowed in a "
"READ statement", &dt->delim->where);
-
+
io_constraint (dt->format_label != &format_asterisk
&& dt->namelist == NULL,
"DELIM= specifier at %L must have FMT=*",
io_constraint (unformatted && dt->namelist == NULL,
"DELIM= specifier at %L must be with FMT=* or "
- "NML= specifier ", &dt->delim->where);
+ "NML= specifier", &dt->delim->where);
}
}
-
+
if (dt->namelist)
{
io_constraint (io_code && dt->namelist,
"YES or NO.", &expr->where);
io_constraint (dt->size && not_no && k == M_READ,
- "SIZE tag at %L requires an ADVANCE = 'NO'",
+ "SIZE tag at %L requires an ADVANCE = %<NO%>",
&dt->size->where);
io_constraint (dt->eor && not_no && k == M_READ,
- "EOR tag at %L requires an ADVANCE = 'NO'",
- &dt->eor_where);
+ "EOR tag at %L requires an ADVANCE = %<NO%>",
+ &dt->eor_where);
}
- expr = dt->format_expr;
- if (gfc_simplify_expr (expr, 0) == FAILURE
- || check_format_string (expr, k == M_READ) == FAILURE)
- return MATCH_ERROR;
+ if (k != M_READ)
+ {
+ io_constraint (dt->end, "END tag not allowed with output at %L",
+ &dt->end_where);
- return m;
-}
+ io_constraint (dt->eor, "EOR tag not allowed with output at %L",
+ &dt->eor_where);
+
+ io_constraint (dt->blank,
+ "BLANK= specifier not allowed with output at %L",
+ &dt->blank->where);
+
+ io_constraint (dt->pad, "PAD= specifier not allowed with output at %L",
+ &dt->pad->where);
+
+ io_constraint (dt->size, "SIZE= specifier not allowed with output at %L",
+ &dt->size->where);
+ }
+ else
+ {
+ io_constraint (dt->size && dt->advance == NULL,
+ "SIZE tag at %L requires an ADVANCE tag",
+ &dt->size->where);
+
+ io_constraint (dt->eor && dt->advance == NULL,
+ "EOR tag at %L requires an ADVANCE tag",
+ &dt->eor_where);
+ }
+
+ return true;
#undef io_constraint
+}
/* Match a READ, WRITE or PRINT statement. */
gfc_symbol *sym;
int comma_flag;
locus where;
- locus spec_end;
+ locus control;
gfc_dt *dt;
match m;
gfc_find_symbol (name, NULL, 1, &sym);
if (sym && sym->attr.flavor == FL_NAMELIST)
{
- if (gfc_notify_std (GFC_STD_GNU, "PRINT namelist at "
- "%C is an extension") == FAILURE)
+ if (!gfc_notify_std (GFC_STD_GNU, "PRINT namelist at "
+ "%C is an extension"))
{
m = MATCH_ERROR;
goto cleanup;
else
gfc_current_locus = where;
}
+
+ if (gfc_match_char ('*') == MATCH_YES
+ && gfc_match_char(',') == MATCH_YES)
+ {
+ locus where2 = gfc_current_locus;
+ if (gfc_match_eos () == MATCH_YES)
+ {
+ gfc_current_locus = where2;
+ gfc_error ("Comma after * at %C not allowed without I/O list");
+ m = MATCH_ERROR;
+ goto cleanup;
+ }
+ else
+ gfc_current_locus = where;
+ }
+ else
+ gfc_current_locus = where;
}
if (gfc_current_form == FORM_FREE)
{
/* Before issuing an error for a malformed 'print (1,*)' type of
error, check for a default-char-expr of the form ('(I0)'). */
- if (k == M_PRINT && m == MATCH_YES)
- {
- /* Reset current locus to get the initial '(' in an expression. */
- gfc_current_locus = where;
- dt->format_expr = NULL;
- m = match_dt_format (dt);
+ if (m == MATCH_YES)
+ {
+ control = gfc_current_locus;
+ if (k == M_PRINT)
+ {
+ /* Reset current locus to get the initial '(' in an expression. */
+ gfc_current_locus = where;
+ dt->format_expr = NULL;
+ m = match_dt_format (dt);
- if (m == MATCH_ERROR)
- goto cleanup;
- if (m == MATCH_NO || dt->format_expr == NULL)
- goto syntax;
+ if (m == MATCH_ERROR)
+ goto cleanup;
+ if (m == MATCH_NO || dt->format_expr == NULL)
+ goto syntax;
- comma_flag = 1;
- dt->io_unit = default_unit (k);
- goto get_io_list;
+ comma_flag = 1;
+ dt->io_unit = default_unit (k);
+ goto get_io_list;
+ }
+ if (k == M_READ)
+ {
+ /* Commit any pending symbols now so that when we undo
+ symbols later we wont lose them. */
+ gfc_commit_symbols ();
+ /* Reset current locus to get the initial '(' in an expression. */
+ gfc_current_locus = where;
+ dt->format_expr = NULL;
+ m = gfc_match_expr (&dt->format_expr);
+ if (m == MATCH_YES)
+ {
+ if (dt->format_expr
+ && dt->format_expr->ts.type == BT_CHARACTER)
+ {
+ comma_flag = 1;
+ dt->io_unit = default_unit (k);
+ goto get_io_list;
+ }
+ else
+ {
+ gfc_free_expr (dt->format_expr);
+ dt->format_expr = NULL;
+ gfc_current_locus = control;
+ }
+ }
+ else
+ {
+ gfc_clear_error ();
+ gfc_undo_symbols ();
+ gfc_free_expr (dt->format_expr);
+ dt->format_expr = NULL;
+ gfc_current_locus = control;
+ }
+ }
}
}
get_io_list:
- /* Used in check_io_constraints, where no locus is available. */
- spec_end = gfc_current_locus;
-
/* Save the IO kind for later use. */
dt->dt_io_kind = gfc_get_iokind_expr (&gfc_current_locus, k);
goto syntax;
}
- /* A full IO statement has been matched. Check the constraints. spec_end is
- supplied for cases where no locus is supplied. */
- m = check_io_constraints (k, dt, io_code, &spec_end);
+ /* See if we want to use defaults for missing exponents in real transfers
+ and other DEC runtime extensions. */
+ if (flag_dec_format_defaults)
+ dt->dec_ext = 1;
- if (m == MATCH_ERROR)
- goto cleanup;
+ /* Check the format string now. */
+ if (dt->format_expr
+ && (!gfc_simplify_expr (dt->format_expr, 0)
+ || !check_format_string (dt->format_expr, k == M_READ)))
+ return MATCH_ERROR;
new_st.op = (k == M_READ) ? EXEC_READ : EXEC_WRITE;
new_st.ext.dt = dt;
- new_st.block = gfc_get_code ();
- new_st.block->op = new_st.op;
+ new_st.block = gfc_get_code (new_st.op);
new_st.block->next = io_code;
terminate_io (io_code);
return MATCH_ERROR;
}
- if (gfc_implicit_pure (NULL))
- gfc_current_ns->proc_name->attr.implicit_pure = 0;
+ gfc_unset_implicit_pure (NULL);
return MATCH_YES;
}
gfc_free_expr (inquire->sign);
gfc_free_expr (inquire->size);
gfc_free_expr (inquire->round);
+ gfc_free_expr (inquire->share);
+ gfc_free_expr (inquire->cc);
free (inquire);
}
m = match_etag (&tag_unit, &inquire->unit);
RETM m = match_etag (&tag_file, &inquire->file);
RETM m = match_ltag (&tag_err, &inquire->err);
- RETM m = match_out_tag (&tag_iomsg, &inquire->iomsg);
+ RETM m = match_etag (&tag_iomsg, &inquire->iomsg);
RETM m = match_out_tag (&tag_iostat, &inquire->iostat);
RETM m = match_vtag (&tag_exist, &inquire->exist);
RETM m = match_vtag (&tag_opened, &inquire->opened);
RETM m = match_vtag (&tag_s_async, &inquire->asynchronous);
RETM m = match_vtag (&tag_s_delim, &inquire->delim);
RETM m = match_vtag (&tag_s_decimal, &inquire->decimal);
- RETM m = match_vtag (&tag_size, &inquire->size);
+ RETM m = match_out_tag (&tag_size, &inquire->size);
RETM m = match_vtag (&tag_s_encoding, &inquire->encoding);
RETM m = match_vtag (&tag_s_round, &inquire->round);
RETM m = match_vtag (&tag_s_sign, &inquire->sign);
RETM m = match_vtag (&tag_s_pad, &inquire->pad);
- RETM m = match_vtag (&tag_iolength, &inquire->iolength);
+ RETM m = match_out_tag (&tag_iolength, &inquire->iolength);
RETM m = match_vtag (&tag_convert, &inquire->convert);
RETM m = match_out_tag (&tag_strm_out, &inquire->strm_pos);
RETM m = match_vtag (&tag_pending, &inquire->pending);
RETM m = match_vtag (&tag_id, &inquire->id);
+ RETM m = match_vtag (&tag_s_iqstream, &inquire->iqstream);
+ RETM m = match_dec_vtag (&tag_v_share, &inquire->share);
+ RETM m = match_dec_vtag (&tag_v_cc, &inquire->cc);
RETM return MATCH_NO;
}
if (m == MATCH_NO)
goto syntax;
+ for (gfc_code *c = code; c; c = c->next)
+ if (c->expr1 && c->expr1->expr_type == EXPR_FUNCTION
+ && c->expr1->symtree && c->expr1->symtree->n.sym->attr.function
+ && !c->expr1->symtree->n.sym->attr.external
+ && strcmp (c->expr1->symtree->name, "null") == 0)
+ {
+ gfc_error ("NULL() near %L cannot appear in INQUIRE statement",
+ &c->expr1->where);
+ goto cleanup;
+ }
+
new_st.op = EXEC_IOLENGTH;
new_st.expr1 = inquire->iolength;
new_st.ext.inquire = inquire;
return MATCH_ERROR;
}
- if (gfc_implicit_pure (NULL))
- gfc_current_ns->proc_name->attr.implicit_pure = 0;
+ gfc_unset_implicit_pure (NULL);
- new_st.block = gfc_get_code ();
- new_st.block->op = EXEC_IOLENGTH;
+ new_st.block = gfc_get_code (EXEC_IOLENGTH);
terminate_io (code);
new_st.block->next = code;
return MATCH_YES;
goto cleanup;
}
+ if (inquire->unit != NULL && inquire->unit->expr_type == EXPR_CONSTANT
+ && inquire->unit->ts.type == BT_INTEGER
+ && ((mpz_get_si (inquire->unit->value.integer) == GFC_INTERNAL_UNIT4)
+ || (mpz_get_si (inquire->unit->value.integer) == GFC_INTERNAL_UNIT)))
+ {
+ gfc_error ("UNIT number in INQUIRE statement at %L cannot "
+ "be %d", &loc, (int) mpz_get_si (inquire->unit->value.integer));
+ goto cleanup;
+ }
+
if (gfc_pure (NULL))
{
gfc_error ("INQUIRE statement not allowed in PURE procedure at %C");
goto cleanup;
}
- if (gfc_implicit_pure (NULL))
- gfc_current_ns->proc_name->attr.implicit_pure = 0;
+ gfc_unset_implicit_pure (NULL);
if (inquire->id != NULL && inquire->pending == NULL)
{
/* Resolve everything in a gfc_inquire structure. */
-gfc_try
+bool
gfc_resolve_inquire (gfc_inquire *inquire)
{
RESOLVE_TAG (&tag_unit, inquire->unit);
{ \
char context[64]; \
sprintf (context, _("%s tag with INQUIRE"), (tag)->name); \
- if (gfc_check_vardef_context ((expr), false, context) == FAILURE) \
- return FAILURE; \
+ if (gfc_check_vardef_context ((expr), false, false, false, \
+ context) == false) \
+ return false; \
}
INQUIRE_RESOLVE_TAG (&tag_iomsg, inquire->iomsg);
INQUIRE_RESOLVE_TAG (&tag_iostat, inquire->iostat);
INQUIRE_RESOLVE_TAG (&tag_pending, inquire->pending);
INQUIRE_RESOLVE_TAG (&tag_size, inquire->size);
INQUIRE_RESOLVE_TAG (&tag_s_decimal, inquire->decimal);
+ INQUIRE_RESOLVE_TAG (&tag_s_iqstream, inquire->iqstream);
+ INQUIRE_RESOLVE_TAG (&tag_v_share, inquire->share);
+ INQUIRE_RESOLVE_TAG (&tag_v_cc, inquire->cc);
#undef INQUIRE_RESOLVE_TAG
- if (gfc_reference_st_label (inquire->err, ST_LABEL_TARGET) == FAILURE)
- return FAILURE;
+ if (!gfc_reference_st_label (inquire->err, ST_LABEL_TARGET))
+ return false;
- return SUCCESS;
+ return true;
}
gfc_free_expr (wait->iostat);
gfc_free_expr (wait->iomsg);
gfc_free_expr (wait->id);
+ free (wait);
}
-gfc_try
+bool
gfc_resolve_wait (gfc_wait *wait)
{
RESOLVE_TAG (&tag_unit, wait->unit);
RESOLVE_TAG (&tag_iostat, wait->iostat);
RESOLVE_TAG (&tag_id, wait->id);
- if (gfc_reference_st_label (wait->err, ST_LABEL_TARGET) == FAILURE)
- return FAILURE;
+ if (!gfc_reference_st_label (wait->err, ST_LABEL_TARGET))
+ return false;
- if (gfc_reference_st_label (wait->end, ST_LABEL_TARGET) == FAILURE)
- return FAILURE;
+ if (!gfc_reference_st_label (wait->end, ST_LABEL_TARGET))
+ return false;
- return SUCCESS;
+ return true;
}
/* Match an element of a WAIT statement. */
m = match_etag (&tag_unit, &wait->unit);
RETM m = match_ltag (&tag_err, &wait->err);
- RETM m = match_ltag (&tag_end, &wait->eor);
- RETM m = match_ltag (&tag_eor, &wait->end);
- RETM m = match_out_tag (&tag_iomsg, &wait->iomsg);
+ RETM m = match_ltag (&tag_end, &wait->end);
+ RETM m = match_ltag (&tag_eor, &wait->eor);
+ RETM m = match_etag (&tag_iomsg, &wait->iomsg);
RETM m = match_out_tag (&tag_iostat, &wait->iostat);
RETM m = match_etag (&tag_id, &wait->id);
RETM return MATCH_NO;
goto syntax;
}
- if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: WAIT at %C "
- "not allowed in Fortran 95") == FAILURE)
+ if (!gfc_notify_std (GFC_STD_F2003, "WAIT at %C "
+ "not allowed in Fortran 95"))
goto cleanup;
if (gfc_pure (NULL))
goto cleanup;
}
- if (gfc_implicit_pure (NULL))
- gfc_current_ns->proc_name->attr.implicit_pure = 0;
+ gfc_unset_implicit_pure (NULL);
new_st.op = EXEC_WAIT;
new_st.ext.wait = wait;
projects / thirdparty / gcc.git / blobdiff