/* YACC parser for Fortran expressions, for GDB.
- Copyright (C) 1986-2014 Free Software Foundation, Inc.
+ Copyright (C) 1986-2019 Free Software Foundation, Inc.
Contributed by Motorola. Adapted from the C parser by Farooq Butt
#include "objfiles.h" /* For have_full_symbols and have_partial_symbols */
#include "block.h"
#include <ctype.h>
+#include <algorithm>
+#include "type-stack.h"
-#define parse_type(ps) builtin_type (parse_gdbarch (ps))
-#define parse_f_type(ps) builtin_f_type (parse_gdbarch (ps))
-
-/* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
- as well as gratuitiously global symbol names, so we can have multiple
- yacc generated parsers in gdb. Note that these are only the variables
- produced by yacc. If other parser generators (bison, byacc, etc) produce
- additional global names that conflict at link time, then those parser
- generators need to be fixed instead of adding those names to this list. */
-
-#define yymaxdepth f_maxdepth
-#define yyparse f_parse_internal
-#define yylex f_lex
-#define yyerror f_error
-#define yylval f_lval
-#define yychar f_char
-#define yydebug f_debug
-#define yypact f_pact
-#define yyr1 f_r1
-#define yyr2 f_r2
-#define yydef f_def
-#define yychk f_chk
-#define yypgo f_pgo
-#define yyact f_act
-#define yyexca f_exca
-#define yyerrflag f_errflag
-#define yynerrs f_nerrs
-#define yyps f_ps
-#define yypv f_pv
-#define yys f_s
-#define yy_yys f_yys
-#define yystate f_state
-#define yytmp f_tmp
-#define yyv f_v
-#define yy_yyv f_yyv
-#define yyval f_val
-#define yylloc f_lloc
-#define yyreds f_reds /* With YYDEBUG defined */
-#define yytoks f_toks /* With YYDEBUG defined */
-#define yyname f_name /* With YYDEBUG defined */
-#define yyrule f_rule /* With YYDEBUG defined */
-#define yylhs f_yylhs
-#define yylen f_yylen
-#define yydefred f_yydefred
-#define yydgoto f_yydgoto
-#define yysindex f_yysindex
-#define yyrindex f_yyrindex
-#define yygindex f_yygindex
-#define yytable f_yytable
-#define yycheck f_yycheck
-#define yyss f_yyss
-#define yysslim f_yysslim
-#define yyssp f_yyssp
-#define yystacksize f_yystacksize
-#define yyvs f_yyvs
-#define yyvsp f_yyvsp
-
-#ifndef YYDEBUG
-#define YYDEBUG 1 /* Default to yydebug support */
-#endif
-
-#define YYFPRINTF parser_fprintf
+#define parse_type(ps) builtin_type (ps->gdbarch ())
+#define parse_f_type(ps) builtin_f_type (ps->gdbarch ())
+
+/* Remap normal yacc parser interface names (yyparse, yylex, yyerror,
+ etc). */
+#define GDB_YY_REMAP_PREFIX f_
+#include "yy-remap.h"
/* The state of the parser, used internally when we are parsing the
expression. */
static struct parser_state *pstate = NULL;
+/* Depth of parentheses. */
+static int paren_depth;
+
+/* The current type stack. */
+static struct type_stack *type_stack;
+
int yyparse (void);
static int yylex (void);
-void yyerror (char *);
+static void yyerror (const char *);
static void growbuf_by_size (int);
static int match_string_literal (void);
+static void push_kind_type (LONGEST val, struct type *type);
+
+static struct type *convert_to_kind_type (struct type *basetype, int kind);
+
%}
/* Although the yacc "value" of an expression is not used,
LONGEST val;
struct type *type;
} typed_val;
- DOUBLEST dval;
+ struct {
+ gdb_byte val[16];
+ struct type *type;
+ } typed_val_float;
struct symbol *sym;
struct type *tval;
struct stoken sval;
struct ttype tsym;
struct symtoken ssym;
int voidval;
- struct block *bval;
enum exp_opcode opcode;
struct internalvar *ivar;
%type <tval> ptype
%token <typed_val> INT
-%token <dval> FLOAT
+%token <typed_val_float> FLOAT
/* Both NAME and TYPENAME tokens represent symbols in the input,
and both convey their data as strings.
%token <ssym> NAME_OR_INT
-%token SIZEOF
+%token SIZEOF KIND
%token ERROR
/* Special type cases, put in to allow the parser to distinguish different
%token BOOL_AND BOOL_OR BOOL_NOT
%token <lval> CHARACTER
-%token <voidval> VARIABLE
+%token <voidval> DOLLAR_VARIABLE
%token <opcode> ASSIGN_MODIFY
+%token <opcode> UNOP_INTRINSIC BINOP_INTRINSIC
%left ','
%left ABOVE_COMMA
{ write_exp_elt_opcode (pstate, UNOP_SIZEOF); }
;
+exp : KIND '(' exp ')' %prec UNARY
+ { write_exp_elt_opcode (pstate, UNOP_FORTRAN_KIND); }
+ ;
+
/* No more explicit array operators, we treat everything in F77 as
a function call. The disambiguation as to whether we are
doing a subscript operation or a function call is done
later in eval.c. */
exp : exp '('
- { start_arglist (); }
+ { pstate->start_arglist (); }
arglist ')'
{ write_exp_elt_opcode (pstate,
OP_F77_UNDETERMINED_ARGLIST);
write_exp_elt_longcst (pstate,
- (LONGEST) end_arglist ());
+ pstate->end_arglist ());
write_exp_elt_opcode (pstate,
OP_F77_UNDETERMINED_ARGLIST); }
;
+exp : UNOP_INTRINSIC '(' exp ')'
+ { write_exp_elt_opcode (pstate, $1); }
+ ;
+
+exp : BINOP_INTRINSIC '(' exp ',' exp ')'
+ { write_exp_elt_opcode (pstate, $1); }
+ ;
+
arglist :
;
arglist : exp
- { arglist_len = 1; }
+ { pstate->arglist_len = 1; }
;
arglist : subrange
- { arglist_len = 1; }
+ { pstate->arglist_len = 1; }
;
arglist : arglist ',' exp %prec ABOVE_COMMA
- { arglist_len++; }
+ { pstate->arglist_len++; }
;
/* There are four sorts of subrange types in F90. */
subrange: exp ':' exp %prec ABOVE_COMMA
- { write_exp_elt_opcode (pstate, OP_F90_RANGE);
+ { write_exp_elt_opcode (pstate, OP_RANGE);
write_exp_elt_longcst (pstate, NONE_BOUND_DEFAULT);
- write_exp_elt_opcode (pstate, OP_F90_RANGE); }
+ write_exp_elt_opcode (pstate, OP_RANGE); }
;
subrange: exp ':' %prec ABOVE_COMMA
- { write_exp_elt_opcode (pstate, OP_F90_RANGE);
+ { write_exp_elt_opcode (pstate, OP_RANGE);
write_exp_elt_longcst (pstate, HIGH_BOUND_DEFAULT);
- write_exp_elt_opcode (pstate, OP_F90_RANGE); }
+ write_exp_elt_opcode (pstate, OP_RANGE); }
;
subrange: ':' exp %prec ABOVE_COMMA
- { write_exp_elt_opcode (pstate, OP_F90_RANGE);
+ { write_exp_elt_opcode (pstate, OP_RANGE);
write_exp_elt_longcst (pstate, LOW_BOUND_DEFAULT);
- write_exp_elt_opcode (pstate, OP_F90_RANGE); }
+ write_exp_elt_opcode (pstate, OP_RANGE); }
;
subrange: ':' %prec ABOVE_COMMA
- { write_exp_elt_opcode (pstate, OP_F90_RANGE);
+ { write_exp_elt_opcode (pstate, OP_RANGE);
write_exp_elt_longcst (pstate, BOTH_BOUND_DEFAULT);
- write_exp_elt_opcode (pstate, OP_F90_RANGE); }
+ write_exp_elt_opcode (pstate, OP_RANGE); }
;
complexnum: exp ',' exp
;
exp : FLOAT
- { write_exp_elt_opcode (pstate, OP_DOUBLE);
- write_exp_elt_type (pstate,
- parse_f_type (pstate)
- ->builtin_real_s8);
- write_exp_elt_dblcst (pstate, $1);
- write_exp_elt_opcode (pstate, OP_DOUBLE); }
+ { write_exp_elt_opcode (pstate, OP_FLOAT);
+ write_exp_elt_type (pstate, $1.type);
+ write_exp_elt_floatcst (pstate, $1.val);
+ write_exp_elt_opcode (pstate, OP_FLOAT); }
;
exp : variable
;
-exp : VARIABLE
+exp : DOLLAR_VARIABLE
;
exp : SIZEOF '(' type ')' %prec UNARY
write_exp_elt_type (pstate,
parse_f_type (pstate)
->builtin_integer);
- CHECK_TYPEDEF ($3);
+ $3 = check_typedef ($3);
write_exp_elt_longcst (pstate,
(LONGEST) TYPE_LENGTH ($3));
write_exp_elt_opcode (pstate, OP_LONG); }
;
variable: name_not_typename
- { struct symbol *sym = $1.sym;
+ { struct block_symbol sym = $1.sym;
- if (sym)
+ if (sym.symbol)
{
- if (symbol_read_needs_frame (sym))
- {
- if (innermost_block == 0
- || contained_in (block_found,
- innermost_block))
- innermost_block = block_found;
- }
+ if (symbol_read_needs_frame (sym.symbol))
+ pstate->block_tracker->update (sym);
write_exp_elt_opcode (pstate, OP_VAR_VALUE);
- /* We want to use the selected frame, not
- another more inner frame which happens to
- be in the same block. */
- write_exp_elt_block (pstate, NULL);
- write_exp_elt_sym (pstate, sym);
+ write_exp_elt_block (pstate, sym.block);
+ write_exp_elt_sym (pstate, sym.symbol);
write_exp_elt_opcode (pstate, OP_VAR_VALUE);
break;
}
else
{
struct bound_minimal_symbol msymbol;
- char *arg = copy_name ($1.stoken);
+ std::string arg = copy_name ($1.stoken);
msymbol =
- lookup_bound_minimal_symbol (arg);
+ lookup_bound_minimal_symbol (arg.c_str ());
if (msymbol.minsym != NULL)
write_exp_msymbol (pstate, msymbol);
else if (!have_full_symbols () && !have_partial_symbols ())
error (_("No symbol table is loaded. Use the \"file\" command."));
else
error (_("No symbol \"%s\" in current context."),
- copy_name ($1.stoken));
+ arg.c_str ());
}
}
;
struct type *range_type;
while (!done)
- switch (pop_type ())
+ switch (type_stack->pop ())
{
case tp_end:
done = 1;
follow_type = lookup_pointer_type (follow_type);
break;
case tp_reference:
- follow_type = lookup_reference_type (follow_type);
+ follow_type = lookup_lvalue_reference_type (follow_type);
break;
case tp_array:
- array_size = pop_type_int ();
+ array_size = type_stack->pop_int ();
if (array_size != -1)
{
range_type =
case tp_function:
follow_type = lookup_function_type (follow_type);
break;
+ case tp_kind:
+ {
+ int kind_val = type_stack->pop_int ();
+ follow_type
+ = convert_to_kind_type (follow_type, kind_val);
+ }
+ break;
}
$$ = follow_type;
}
;
abs_decl: '*'
- { push_type (tp_pointer); $$ = 0; }
+ { type_stack->push (tp_pointer); $$ = 0; }
| '*' abs_decl
- { push_type (tp_pointer); $$ = $2; }
+ { type_stack->push (tp_pointer); $$ = $2; }
| '&'
- { push_type (tp_reference); $$ = 0; }
+ { type_stack->push (tp_reference); $$ = 0; }
| '&' abs_decl
- { push_type (tp_reference); $$ = $2; }
+ { type_stack->push (tp_reference); $$ = $2; }
| direct_abs_decl
;
direct_abs_decl: '(' abs_decl ')'
{ $$ = $2; }
+ | '(' KIND '=' INT ')'
+ { push_kind_type ($4.val, $4.type); }
+ | '*' INT
+ { push_kind_type ($2.val, $2.type); }
| direct_abs_decl func_mod
- { push_type (tp_function); }
+ { type_stack->push (tp_function); }
| func_mod
- { push_type (tp_function); }
+ { type_stack->push (tp_function); }
;
func_mod: '(' ')'
if (parsed_float)
{
/* It's a float since it contains a point or an exponent. */
- /* [dD] is not understood as an exponent by atof, change it to 'e'. */
+ /* [dD] is not understood as an exponent by parse_float,
+ change it to 'e'. */
char *tmp, *tmp2;
tmp = xstrdup (p);
for (tmp2 = tmp; *tmp2; ++tmp2)
if (*tmp2 == 'd' || *tmp2 == 'D')
*tmp2 = 'e';
- putithere->dval = atof (tmp);
+
+ /* FIXME: Should this use different types? */
+ putithere->typed_val_float.type = parse_f_type (pstate)->builtin_real_s8;
+ bool parsed = parse_float (tmp, len,
+ putithere->typed_val_float.type,
+ putithere->typed_val_float.val);
free (tmp);
- return FLOAT;
+ return parsed? FLOAT : ERROR;
}
/* Handle base-switching prefixes 0x, 0t, 0d, 0 */
are the same size. So we shift it twice, with fewer bits
each time, for the same result. */
- if ((gdbarch_int_bit (parse_gdbarch (par_state))
- != gdbarch_long_bit (parse_gdbarch (par_state))
+ if ((gdbarch_int_bit (par_state->gdbarch ())
+ != gdbarch_long_bit (par_state->gdbarch ())
&& ((n >> 2)
- >> (gdbarch_int_bit (parse_gdbarch (par_state))-2))) /* Avoid
+ >> (gdbarch_int_bit (par_state->gdbarch ())-2))) /* Avoid
shift warning */
|| long_p)
{
high_bit = ((ULONGEST)1)
- << (gdbarch_long_bit (parse_gdbarch (par_state))-1);
+ << (gdbarch_long_bit (par_state->gdbarch ())-1);
unsigned_type = parse_type (par_state)->builtin_unsigned_long;
signed_type = parse_type (par_state)->builtin_long;
}
else
{
high_bit =
- ((ULONGEST)1) << (gdbarch_int_bit (parse_gdbarch (par_state)) - 1);
+ ((ULONGEST)1) << (gdbarch_int_bit (par_state->gdbarch ()) - 1);
unsigned_type = parse_type (par_state)->builtin_unsigned_int;
signed_type = parse_type (par_state)->builtin_int;
}
return INT;
}
+/* Called to setup the type stack when we encounter a '(kind=N)' type
+ modifier, performs some bounds checking on 'N' and then pushes this to
+ the type stack followed by the 'tp_kind' marker. */
+static void
+push_kind_type (LONGEST val, struct type *type)
+{
+ int ival;
+
+ if (TYPE_UNSIGNED (type))
+ {
+ ULONGEST uval = static_cast <ULONGEST> (val);
+ if (uval > INT_MAX)
+ error (_("kind value out of range"));
+ ival = static_cast <int> (uval);
+ }
+ else
+ {
+ if (val > INT_MAX || val < 0)
+ error (_("kind value out of range"));
+ ival = static_cast <int> (val);
+ }
+
+ type_stack->push (ival);
+ type_stack->push (tp_kind);
+}
+
+/* Called when a type has a '(kind=N)' modifier after it, for example
+ 'character(kind=1)'. The BASETYPE is the type described by 'character'
+ in our example, and KIND is the integer '1'. This function returns a
+ new type that represents the basetype of a specific kind. */
+static struct type *
+convert_to_kind_type (struct type *basetype, int kind)
+{
+ if (basetype == parse_f_type (pstate)->builtin_character)
+ {
+ /* Character of kind 1 is a special case, this is the same as the
+ base character type. */
+ if (kind == 1)
+ return parse_f_type (pstate)->builtin_character;
+ }
+ else if (basetype == parse_f_type (pstate)->builtin_complex_s8)
+ {
+ if (kind == 4)
+ return parse_f_type (pstate)->builtin_complex_s8;
+ else if (kind == 8)
+ return parse_f_type (pstate)->builtin_complex_s16;
+ else if (kind == 16)
+ return parse_f_type (pstate)->builtin_complex_s32;
+ }
+ else if (basetype == parse_f_type (pstate)->builtin_real)
+ {
+ if (kind == 4)
+ return parse_f_type (pstate)->builtin_real;
+ else if (kind == 8)
+ return parse_f_type (pstate)->builtin_real_s8;
+ else if (kind == 16)
+ return parse_f_type (pstate)->builtin_real_s16;
+ }
+ else if (basetype == parse_f_type (pstate)->builtin_logical)
+ {
+ if (kind == 1)
+ return parse_f_type (pstate)->builtin_logical_s1;
+ else if (kind == 2)
+ return parse_f_type (pstate)->builtin_logical_s2;
+ else if (kind == 4)
+ return parse_f_type (pstate)->builtin_logical;
+ else if (kind == 8)
+ return parse_f_type (pstate)->builtin_logical_s8;
+ }
+ else if (basetype == parse_f_type (pstate)->builtin_integer)
+ {
+ if (kind == 2)
+ return parse_f_type (pstate)->builtin_integer_s2;
+ else if (kind == 4)
+ return parse_f_type (pstate)->builtin_integer;
+ else if (kind == 8)
+ return parse_f_type (pstate)->builtin_integer_s8;
+ }
+
+ error (_("unsupported kind %d for type %s"),
+ kind, TYPE_SAFE_NAME (basetype));
+
+ /* Should never get here. */
+ return nullptr;
+}
+
struct token
{
- char *operator;
+ /* The string to match against. */
+ const char *oper;
+
+ /* The lexer token to return. */
int token;
+
+ /* The expression opcode to embed within the token. */
enum exp_opcode opcode;
+
+ /* When this is true the string in OPER is matched exactly including
+ case, when this is false OPER is matched case insensitively. */
+ bool case_sensitive;
};
static const struct token dot_ops[] =
{
- { ".and.", BOOL_AND, BINOP_END },
- { ".AND.", BOOL_AND, BINOP_END },
- { ".or.", BOOL_OR, BINOP_END },
- { ".OR.", BOOL_OR, BINOP_END },
- { ".not.", BOOL_NOT, BINOP_END },
- { ".NOT.", BOOL_NOT, BINOP_END },
- { ".eq.", EQUAL, BINOP_END },
- { ".EQ.", EQUAL, BINOP_END },
- { ".eqv.", EQUAL, BINOP_END },
- { ".NEQV.", NOTEQUAL, BINOP_END },
- { ".neqv.", NOTEQUAL, BINOP_END },
- { ".EQV.", EQUAL, BINOP_END },
- { ".ne.", NOTEQUAL, BINOP_END },
- { ".NE.", NOTEQUAL, BINOP_END },
- { ".le.", LEQ, BINOP_END },
- { ".LE.", LEQ, BINOP_END },
- { ".ge.", GEQ, BINOP_END },
- { ".GE.", GEQ, BINOP_END },
- { ".gt.", GREATERTHAN, BINOP_END },
- { ".GT.", GREATERTHAN, BINOP_END },
- { ".lt.", LESSTHAN, BINOP_END },
- { ".LT.", LESSTHAN, BINOP_END },
- { NULL, 0, 0 }
+ { ".and.", BOOL_AND, BINOP_END, false },
+ { ".or.", BOOL_OR, BINOP_END, false },
+ { ".not.", BOOL_NOT, BINOP_END, false },
+ { ".eq.", EQUAL, BINOP_END, false },
+ { ".eqv.", EQUAL, BINOP_END, false },
+ { ".neqv.", NOTEQUAL, BINOP_END, false },
+ { ".ne.", NOTEQUAL, BINOP_END, false },
+ { ".le.", LEQ, BINOP_END, false },
+ { ".ge.", GEQ, BINOP_END, false },
+ { ".gt.", GREATERTHAN, BINOP_END, false },
+ { ".lt.", LESSTHAN, BINOP_END, false },
};
-struct f77_boolean_val
+/* Holds the Fortran representation of a boolean, and the integer value we
+ substitute in when one of the matching strings is parsed. */
+struct f77_boolean_val
{
- char *name;
+ /* The string representing a Fortran boolean. */
+ const char *name;
+
+ /* The integer value to replace it with. */
int value;
-};
+};
-static const struct f77_boolean_val boolean_values[] =
+/* The set of Fortran booleans. These are matched case insensitively. */
+static const struct f77_boolean_val boolean_values[] =
{
{ ".true.", 1 },
- { ".TRUE.", 1 },
- { ".false.", 0 },
- { ".FALSE.", 0 },
- { NULL, 0 }
+ { ".false.", 0 }
};
-static const struct token f77_keywords[] =
+static const struct token f77_keywords[] =
{
- { "complex_16", COMPLEX_S16_KEYWORD, BINOP_END },
- { "complex_32", COMPLEX_S32_KEYWORD, BINOP_END },
- { "character", CHARACTER, BINOP_END },
- { "integer_2", INT_S2_KEYWORD, BINOP_END },
- { "logical_1", LOGICAL_S1_KEYWORD, BINOP_END },
- { "logical_2", LOGICAL_S2_KEYWORD, BINOP_END },
- { "logical_8", LOGICAL_S8_KEYWORD, BINOP_END },
- { "complex_8", COMPLEX_S8_KEYWORD, BINOP_END },
- { "integer", INT_KEYWORD, BINOP_END },
- { "logical", LOGICAL_KEYWORD, BINOP_END },
- { "real_16", REAL_S16_KEYWORD, BINOP_END },
- { "complex", COMPLEX_S8_KEYWORD, BINOP_END },
- { "sizeof", SIZEOF, BINOP_END },
- { "real_8", REAL_S8_KEYWORD, BINOP_END },
- { "real", REAL_KEYWORD, BINOP_END },
- { NULL, 0, 0 }
-};
+ /* Historically these have always been lowercase only in GDB. */
+ { "complex_16", COMPLEX_S16_KEYWORD, BINOP_END, true },
+ { "complex_32", COMPLEX_S32_KEYWORD, BINOP_END, true },
+ { "character", CHARACTER, BINOP_END, true },
+ { "integer_2", INT_S2_KEYWORD, BINOP_END, true },
+ { "logical_1", LOGICAL_S1_KEYWORD, BINOP_END, true },
+ { "logical_2", LOGICAL_S2_KEYWORD, BINOP_END, true },
+ { "logical_8", LOGICAL_S8_KEYWORD, BINOP_END, true },
+ { "complex_8", COMPLEX_S8_KEYWORD, BINOP_END, true },
+ { "integer", INT_KEYWORD, BINOP_END, true },
+ { "logical", LOGICAL_KEYWORD, BINOP_END, true },
+ { "real_16", REAL_S16_KEYWORD, BINOP_END, true },
+ { "complex", COMPLEX_S8_KEYWORD, BINOP_END, true },
+ { "sizeof", SIZEOF, BINOP_END, true },
+ { "real_8", REAL_S8_KEYWORD, BINOP_END, true },
+ { "real", REAL_KEYWORD, BINOP_END, true },
+ /* The following correspond to actual functions in Fortran and are case
+ insensitive. */
+ { "kind", KIND, BINOP_END, false },
+ { "abs", UNOP_INTRINSIC, UNOP_ABS, false },
+ { "mod", BINOP_INTRINSIC, BINOP_MOD, false },
+ { "floor", UNOP_INTRINSIC, UNOP_FORTRAN_FLOOR, false },
+ { "ceiling", UNOP_INTRINSIC, UNOP_FORTRAN_CEILING, false },
+ { "modulo", BINOP_INTRINSIC, BINOP_FORTRAN_MODULO, false },
+ { "cmplx", BINOP_INTRINSIC, BINOP_FORTRAN_CMPLX, false },
+};
/* Implementation of a dynamically expandable buffer for processing input
characters acquired through lexptr and building a value to return in
{
int growby;
- growby = max (count, GROWBY_MIN_SIZE);
+ growby = std::max (count, GROWBY_MIN_SIZE);
tempbufsize += growby;
if (tempbuf == NULL)
tempbuf = (char *) malloc (tempbufsize);
static int
match_string_literal (void)
{
- const char *tokptr = lexptr;
+ const char *tokptr = pstate->lexptr;
for (tempbufindex = 0, tokptr++; *tokptr != '\0'; tokptr++)
{
CHECKBUF (1);
- if (*tokptr == *lexptr)
+ if (*tokptr == *pstate->lexptr)
{
- if (*(tokptr + 1) == *lexptr)
+ if (*(tokptr + 1) == *pstate->lexptr)
tokptr++;
else
break;
tempbuf[tempbufindex] = '\0';
yylval.sval.ptr = tempbuf;
yylval.sval.length = tempbufindex;
- lexptr = ++tokptr;
+ pstate->lexptr = ++tokptr;
return STRING_LITERAL;
}
}
{
int c;
int namelen;
- unsigned int i,token;
+ unsigned int token;
const char *tokstart;
retry:
- prev_lexptr = lexptr;
+ pstate->prev_lexptr = pstate->lexptr;
- tokstart = lexptr;
-
- /* First of all, let us make sure we are not dealing with the
+ tokstart = pstate->lexptr;
+
+ /* First of all, let us make sure we are not dealing with the
special tokens .true. and .false. which evaluate to 1 and 0. */
-
- if (*lexptr == '.')
- {
- for (i = 0; boolean_values[i].name != NULL; i++)
+
+ if (*pstate->lexptr == '.')
+ {
+ for (int i = 0; i < ARRAY_SIZE (boolean_values); i++)
{
- if (strncmp (tokstart, boolean_values[i].name,
- strlen (boolean_values[i].name)) == 0)
+ if (strncasecmp (tokstart, boolean_values[i].name,
+ strlen (boolean_values[i].name)) == 0)
{
- lexptr += strlen (boolean_values[i].name);
- yylval.lval = boolean_values[i].value;
+ pstate->lexptr += strlen (boolean_values[i].name);
+ yylval.lval = boolean_values[i].value;
return BOOLEAN_LITERAL;
}
}
}
-
+
/* See if it is a special .foo. operator. */
-
- for (i = 0; dot_ops[i].operator != NULL; i++)
- if (strncmp (tokstart, dot_ops[i].operator,
- strlen (dot_ops[i].operator)) == 0)
+ for (int i = 0; i < ARRAY_SIZE (dot_ops); i++)
+ if (strncasecmp (tokstart, dot_ops[i].oper,
+ strlen (dot_ops[i].oper)) == 0)
{
- lexptr += strlen (dot_ops[i].operator);
+ gdb_assert (!dot_ops[i].case_sensitive);
+ pstate->lexptr += strlen (dot_ops[i].oper);
yylval.opcode = dot_ops[i].opcode;
return dot_ops[i].token;
}
-
+
/* See if it is an exponentiation operator. */
if (strncmp (tokstart, "**", 2) == 0)
{
- lexptr += 2;
+ pstate->lexptr += 2;
yylval.opcode = BINOP_EXP;
return STARSTAR;
}
case ' ':
case '\t':
case '\n':
- lexptr++;
+ pstate->lexptr++;
goto retry;
case '\'':
case '(':
paren_depth++;
- lexptr++;
+ pstate->lexptr++;
return c;
case ')':
if (paren_depth == 0)
return 0;
paren_depth--;
- lexptr++;
+ pstate->lexptr++;
return c;
case ',':
- if (comma_terminates && paren_depth == 0)
+ if (pstate->comma_terminates && paren_depth == 0)
return 0;
- lexptr++;
+ pstate->lexptr++;
return c;
case '.':
/* Might be a floating point number. */
- if (lexptr[1] < '0' || lexptr[1] > '9')
+ if (pstate->lexptr[1] < '0' || pstate->lexptr[1] > '9')
goto symbol; /* Nope, must be a symbol. */
- /* FALL THRU into number case. */
+ /* FALL THRU. */
case '0':
case '1':
err_copy[p - tokstart] = 0;
error (_("Invalid number \"%s\"."), err_copy);
}
- lexptr = p;
+ pstate->lexptr = p;
return toktype;
}
case '{':
case '}':
symbol:
- lexptr++;
+ pstate->lexptr++;
return c;
}
if (namelen == 2 && tokstart[0] == 'i' && tokstart[1] == 'f')
return 0;
- lexptr += namelen;
+ pstate->lexptr += namelen;
/* Catch specific keywords. */
-
- for (i = 0; f77_keywords[i].operator != NULL; i++)
- if (strlen (f77_keywords[i].operator) == namelen
- && strncmp (tokstart, f77_keywords[i].operator, namelen) == 0)
+
+ for (int i = 0; i < ARRAY_SIZE (f77_keywords); i++)
+ if (strlen (f77_keywords[i].oper) == namelen
+ && ((!f77_keywords[i].case_sensitive
+ && strncasecmp (tokstart, f77_keywords[i].oper, namelen) == 0)
+ || (f77_keywords[i].case_sensitive
+ && strncmp (tokstart, f77_keywords[i].oper, namelen) == 0)))
{
- /* lexptr += strlen(f77_keywords[i].operator); */
yylval.opcode = f77_keywords[i].opcode;
return f77_keywords[i].token;
}
-
+
yylval.sval.ptr = tokstart;
yylval.sval.length = namelen;
if (*tokstart == '$')
{
write_dollar_variable (pstate, yylval.sval);
- return VARIABLE;
+ return DOLLAR_VARIABLE;
}
/* Use token-type TYPENAME for symbols that happen to be defined
currently as names of types; NAME for other symbols.
The caller is not constrained to care about the distinction. */
{
- char *tmp = copy_name (yylval.sval);
- struct symbol *sym;
+ std::string tmp = copy_name (yylval.sval);
+ struct block_symbol result;
struct field_of_this_result is_a_field_of_this;
enum domain_enum_tag lookup_domains[] =
{
VAR_DOMAIN,
MODULE_DOMAIN
};
- int i;
int hextype;
- for (i = 0; i < ARRAY_SIZE (lookup_domains); ++i)
+ for (int i = 0; i < ARRAY_SIZE (lookup_domains); ++i)
{
/* Initialize this in case we *don't* use it in this call; that
way we can refer to it unconditionally below. */
memset (&is_a_field_of_this, 0, sizeof (is_a_field_of_this));
- sym = lookup_symbol (tmp, expression_context_block,
- lookup_domains[i],
- parse_language (pstate)->la_language
- == language_cplus ? &is_a_field_of_this : NULL);
- if (sym && SYMBOL_CLASS (sym) == LOC_TYPEDEF)
+ result = lookup_symbol (tmp.c_str (), pstate->expression_context_block,
+ lookup_domains[i],
+ pstate->language ()->la_language
+ == language_cplus
+ ? &is_a_field_of_this : NULL);
+ if (result.symbol && SYMBOL_CLASS (result.symbol) == LOC_TYPEDEF)
{
- yylval.tsym.type = SYMBOL_TYPE (sym);
+ yylval.tsym.type = SYMBOL_TYPE (result.symbol);
return TYPENAME;
}
- if (sym)
+ if (result.symbol)
break;
}
yylval.tsym.type
- = language_lookup_primitive_type (parse_language (pstate),
- parse_gdbarch (pstate), tmp);
+ = language_lookup_primitive_type (pstate->language (),
+ pstate->gdbarch (), tmp.c_str ());
if (yylval.tsym.type != NULL)
return TYPENAME;
/* Input names that aren't symbols but ARE valid hex numbers,
when the input radix permits them, can be names or numbers
depending on the parse. Note we support radixes > 16 here. */
- if (!sym
+ if (!result.symbol
&& ((tokstart[0] >= 'a' && tokstart[0] < 'a' + input_radix - 10)
|| (tokstart[0] >= 'A' && tokstart[0] < 'A' + input_radix - 10)))
{
hextype = parse_number (pstate, tokstart, namelen, 0, &newlval);
if (hextype == INT)
{
- yylval.ssym.sym = sym;
+ yylval.ssym.sym = result;
yylval.ssym.is_a_field_of_this = is_a_field_of_this.type != NULL;
return NAME_OR_INT;
}
}
/* Any other kind of symbol */
- yylval.ssym.sym = sym;
+ yylval.ssym.sym = result;
yylval.ssym.is_a_field_of_this = is_a_field_of_this.type != NULL;
return NAME;
}
int
f_parse (struct parser_state *par_state)
{
- int result;
- struct cleanup *c = make_cleanup_clear_parser_state (&pstate);
-
/* Setting up the parser state. */
+ scoped_restore pstate_restore = make_scoped_restore (&pstate);
+ scoped_restore restore_yydebug = make_scoped_restore (&yydebug,
+ parser_debug);
gdb_assert (par_state != NULL);
pstate = par_state;
+ paren_depth = 0;
- result = yyparse ();
- do_cleanups (c);
- return result;
+ struct type_stack stack;
+ scoped_restore restore_type_stack = make_scoped_restore (&type_stack,
+ &stack);
+
+ return yyparse ();
}
-void
-yyerror (char *msg)
+static void
+yyerror (const char *msg)
{
- if (prev_lexptr)
- lexptr = prev_lexptr;
+ if (pstate->prev_lexptr)
+ pstate->lexptr = pstate->prev_lexptr;
- error (_("A %s in expression, near `%s'."), (msg ? msg : "error"), lexptr);
+ error (_("A %s in expression, near `%s'."), msg, pstate->lexptr);
}
projects / binutils.git / blobdiff