/* YACC parser for Pascal expressions, for GDB.
- Copyright (C) 2000-2015 Free Software Foundation, Inc.
+ Copyright (C) 2000-2019 Free Software Foundation, Inc.
This file is part of GDB.
#include "block.h"
#include "completer.h"
-#define parse_type(ps) builtin_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 pascal_maxdepth
-#define yyparse pascal_parse_internal
-#define yylex pascal_lex
-#define yyerror pascal_error
-#define yylval pascal_lval
-#define yychar pascal_char
-#define yydebug pascal_debug
-#define yypact pascal_pact
-#define yyr1 pascal_r1
-#define yyr2 pascal_r2
-#define yydef pascal_def
-#define yychk pascal_chk
-#define yypgo pascal_pgo
-#define yyact pascal_act
-#define yyexca pascal_exca
-#define yyerrflag pascal_errflag
-#define yynerrs pascal_nerrs
-#define yyps pascal_ps
-#define yypv pascal_pv
-#define yys pascal_s
-#define yy_yys pascal_yys
-#define yystate pascal_state
-#define yytmp pascal_tmp
-#define yyv pascal_v
-#define yy_yyv pascal_yyv
-#define yyval pascal_val
-#define yylloc pascal_lloc
-#define yyreds pascal_reds /* With YYDEBUG defined */
-#define yytoks pascal_toks /* With YYDEBUG defined */
-#define yyname pascal_name /* With YYDEBUG defined */
-#define yyrule pascal_rule /* With YYDEBUG defined */
-#define yylhs pascal_yylhs
-#define yylen pascal_yylen
-#define yydefred pascal_yydefred
-#define yydgoto pascal_yydgoto
-#define yysindex pascal_yysindex
-#define yyrindex pascal_yyrindex
-#define yygindex pascal_yygindex
-#define yytable pascal_yytable
-#define yycheck pascal_yycheck
-#define yyss pascal_yyss
-#define yysslim pascal_yysslim
-#define yyssp pascal_yyssp
-#define yystacksize pascal_yystacksize
-#define yyvs pascal_yyvs
-#define yyvsp pascal_yyvsp
-
-#ifndef YYDEBUG
-#define YYDEBUG 1 /* Default to yydebug support */
-#endif
-
-#define YYFPRINTF parser_fprintf
+#define parse_type(ps) builtin_type (ps->gdbarch ())
+
+/* Remap normal yacc parser interface names (yyparse, yylex, yyerror,
+ etc). */
+#define GDB_YY_REMAP_PREFIX pascal_
+#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;
+
int yyparse (void);
static int yylex (void);
-void yyerror (char *);
+static void yyerror (const char *);
static char *uptok (const char *, int);
%}
struct type *type;
} typed_val_int;
struct {
- DOUBLEST dval;
+ gdb_byte val[16];
struct type *type;
} typed_val_float;
struct symbol *sym;
/* Special type cases, put in to allow the parser to distinguish different
legal basetypes. */
-%token <voidval> VARIABLE
+%token <voidval> DOLLAR_VARIABLE
/* Object pascal */
}
;
exp : field_exp name COMPLETE
- { mark_struct_expression (pstate);
+ { pstate->mark_struct_expression ();
write_exp_elt_opcode (pstate, STRUCTOP_STRUCT);
write_exp_string (pstate, $2);
write_exp_elt_opcode (pstate, STRUCTOP_STRUCT); }
;
exp : field_exp COMPLETE
{ struct stoken s;
- mark_struct_expression (pstate);
+ pstate->mark_struct_expression ();
write_exp_elt_opcode (pstate, STRUCTOP_STRUCT);
s.ptr = "";
s.length = 0;
struct stoken stringsval;
char *buf;
- buf = alloca (strlen (arrayname) + 1);
+ buf = (char *) alloca (strlen (arrayname) + 1);
stringsval.ptr = buf;
stringsval.length = strlen (arrayname);
strcpy (buf, arrayname);
/* This is to save the value of arglist_len
being accumulated by an outer function call. */
{ push_current_type ();
- start_arglist (); }
+ pstate->start_arglist (); }
arglist ')' %prec ARROW
{ write_exp_elt_opcode (pstate, OP_FUNCALL);
write_exp_elt_longcst (pstate,
- (LONGEST) end_arglist ());
+ pstate->end_arglist ());
write_exp_elt_opcode (pstate, OP_FUNCALL);
pop_current_type ();
if (current_type)
arglist :
| exp
- { arglist_len = 1; }
+ { pstate->arglist_len = 1; }
| arglist ',' exp %prec ABOVE_COMMA
- { arglist_len++; }
+ { pstate->arglist_len++; }
;
exp : type '(' exp ')' %prec UNARY
exp : FLOAT
- { write_exp_elt_opcode (pstate, OP_DOUBLE);
+ { write_exp_elt_opcode (pstate, OP_FLOAT);
write_exp_elt_type (pstate, $1.type);
current_type = $1.type;
- write_exp_elt_dblcst (pstate, $1.dval);
- write_exp_elt_opcode (pstate, OP_DOUBLE); }
+ write_exp_elt_floatcst (pstate, $1.val);
+ write_exp_elt_opcode (pstate, OP_FLOAT); }
;
exp : variable
;
-exp : VARIABLE
+exp : DOLLAR_VARIABLE
/* Already written by write_dollar_variable.
Handle current_type. */
{ if (intvar) {
struct value * val, * mark;
mark = value_mark ();
- val = value_of_internalvar (parse_gdbarch (pstate),
+ val = value_of_internalvar (pstate->gdbarch (),
intvar);
current_type = value_type (val);
value_release_to_mark (mark);
write_exp_elt_type (pstate,
parse_type (pstate)->builtin_int);
current_type = parse_type (pstate)->builtin_int;
- CHECK_TYPEDEF ($3);
+ $3 = check_typedef ($3);
write_exp_elt_longcst (pstate,
(LONGEST) TYPE_LENGTH ($3));
write_exp_elt_opcode (pstate, OP_LONG); }
write_exp_elt_opcode (pstate, OP_THIS);
/* We need type of this. */
this_val
- = value_of_this_silent (parse_language (pstate));
+ = value_of_this_silent (pstate->language ());
if (this_val)
this_type = value_type (this_val);
else
block : BLOCKNAME
{
- if ($1.sym != 0)
- $$ = SYMBOL_BLOCK_VALUE ($1.sym);
+ if ($1.sym.symbol != 0)
+ $$ = SYMBOL_BLOCK_VALUE ($1.sym.symbol);
else
{
struct symtab *tem =
block : block COLONCOLON name
{ struct symbol *tem
= lookup_symbol (copy_name ($3), $1,
- VAR_DOMAIN, NULL);
+ VAR_DOMAIN, NULL).symbol;
+
if (!tem || SYMBOL_CLASS (tem) != LOC_BLOCK)
error (_("No function \"%s\" in specified context."),
copy_name ($3));
;
variable: block COLONCOLON name
- { struct symbol *sym;
+ { struct block_symbol sym;
+
sym = lookup_symbol (copy_name ($3), $1,
VAR_DOMAIN, NULL);
- if (sym == 0)
+ if (sym.symbol == 0)
error (_("No symbol \"%s\" in specified context."),
copy_name ($3));
write_exp_elt_opcode (pstate, OP_VAR_VALUE);
- /* block_found is set by lookup_symbol. */
- write_exp_elt_block (pstate, block_found);
- 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); }
;
qualified_name: typebase COLONCOLON name
{
struct type *type = $1;
+
if (TYPE_CODE (type) != TYPE_CODE_STRUCT
&& TYPE_CODE (type) != TYPE_CODE_UNION)
error (_("`%s' is not defined as an aggregate type."),
sym =
lookup_symbol (name, (const struct block *) NULL,
- VAR_DOMAIN, NULL);
+ VAR_DOMAIN, NULL).symbol;
if (sym)
{
write_exp_elt_opcode (pstate, OP_VAR_VALUE);
;
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);
- current_type = sym->type; }
+ current_type = sym.symbol->type; }
else if ($1.is_a_field_of_this)
{
struct value * this_val;
/* Object pascal: it hangs off of `this'. Must
not inadvertently convert from a method call
to data ref. */
- if (innermost_block == 0
- || contained_in (block_found,
- innermost_block))
- innermost_block = block_found;
+ pstate->block_tracker->update (sym);
write_exp_elt_opcode (pstate, OP_THIS);
write_exp_elt_opcode (pstate, OP_THIS);
write_exp_elt_opcode (pstate, STRUCTOP_PTR);
write_exp_elt_opcode (pstate, STRUCTOP_PTR);
/* We need type of this. */
this_val
- = value_of_this_silent (parse_language (pstate));
+ = value_of_this_silent (pstate->language ());
if (this_val)
this_type = value_type (this_val);
else
| TYPENAME
{ $$ = $1.type; }
| STRUCT name
- { $$ = lookup_struct (copy_name ($2),
- expression_context_block); }
+ { $$
+ = lookup_struct (copy_name ($2),
+ pstate->expression_context_block);
+ }
| CLASS name
- { $$ = lookup_struct (copy_name ($2),
- expression_context_block); }
+ { $$
+ = lookup_struct (copy_name ($2),
+ pstate->expression_context_block);
+ }
/* "const" and "volatile" are curently ignored. A type qualifier
after the type is handled in the ptype rule. I think these could
be too. */
if (parsed_float)
{
- if (! parse_c_float (parse_gdbarch (par_state), p, len,
- &putithere->typed_val_float.dval,
- &putithere->typed_val_float.type))
+ /* Handle suffixes: 'f' for float, 'l' for long double.
+ FIXME: This appears to be an extension -- do we want this? */
+ if (len >= 1 && tolower (p[len - 1]) == 'f')
+ {
+ putithere->typed_val_float.type
+ = parse_type (par_state)->builtin_float;
+ len--;
+ }
+ else if (len >= 1 && tolower (p[len - 1]) == 'l')
+ {
+ putithere->typed_val_float.type
+ = parse_type (par_state)->builtin_long_double;
+ len--;
+ }
+ /* Default type for floating-point literals is double. */
+ else
+ {
+ putithere->typed_val_float.type
+ = parse_type (par_state)->builtin_double;
+ }
+
+ if (!parse_float (p, len,
+ putithere->typed_val_float.type,
+ putithere->typed_val_float.val))
return ERROR;
return FLOAT;
}
un = (ULONGEST)n >> 2;
if (long_p == 0
- && (un >> (gdbarch_int_bit (parse_gdbarch (par_state)) - 2)) == 0)
+ && (un >> (gdbarch_int_bit (par_state->gdbarch ()) - 2)) == 0)
{
high_bit
- = ((ULONGEST)1) << (gdbarch_int_bit (parse_gdbarch (par_state)) - 1);
+ = ((ULONGEST)1) << (gdbarch_int_bit (par_state->gdbarch ()) - 1);
/* A large decimal (not hex or octal) constant (between INT_MAX
and UINT_MAX) is a long or unsigned long, according to ANSI,
signed_type = parse_type (par_state)->builtin_int;
}
else if (long_p <= 1
- && (un >> (gdbarch_long_bit (parse_gdbarch (par_state)) - 2)) == 0)
+ && (un >> (gdbarch_long_bit (par_state->gdbarch ()) - 2)) == 0)
{
high_bit
- = ((ULONGEST)1) << (gdbarch_long_bit (parse_gdbarch (par_state)) - 1);
+ = ((ULONGEST)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;
}
{
int shift;
if (sizeof (ULONGEST) * HOST_CHAR_BIT
- < gdbarch_long_long_bit (parse_gdbarch (par_state)))
+ < gdbarch_long_long_bit (par_state->gdbarch ()))
/* A long long does not fit in a LONGEST. */
shift = (sizeof (ULONGEST) * HOST_CHAR_BIT - 1);
else
- shift = (gdbarch_long_long_bit (parse_gdbarch (par_state)) - 1);
+ shift = (gdbarch_long_long_bit (par_state->gdbarch ()) - 1);
high_bit = (ULONGEST) 1 << shift;
unsigned_type = parse_type (par_state)->builtin_unsigned_long_long;
signed_type = parse_type (par_state)->builtin_long_long;
struct token
{
- char *operator;
+ const char *oper;
int token;
enum exp_opcode opcode;
};
{
int c;
int namelen;
- unsigned int i;
const char *tokstart;
char *uptokstart;
const char *tokptr;
retry:
- prev_lexptr = lexptr;
+ pstate->prev_lexptr = pstate->lexptr;
- tokstart = lexptr;
- explen = strlen (lexptr);
+ tokstart = pstate->lexptr;
+ explen = strlen (pstate->lexptr);
/* See if it is a special token of length 3. */
if (explen > 2)
- for (i = 0; i < sizeof (tokentab3) / sizeof (tokentab3[0]); i++)
- if (strncasecmp (tokstart, tokentab3[i].operator, 3) == 0
- && (!isalpha (tokentab3[i].operator[0]) || explen == 3
+ for (int i = 0; i < sizeof (tokentab3) / sizeof (tokentab3[0]); i++)
+ if (strncasecmp (tokstart, tokentab3[i].oper, 3) == 0
+ && (!isalpha (tokentab3[i].oper[0]) || explen == 3
|| (!isalpha (tokstart[3])
&& !isdigit (tokstart[3]) && tokstart[3] != '_')))
{
- lexptr += 3;
+ pstate->lexptr += 3;
yylval.opcode = tokentab3[i].opcode;
return tokentab3[i].token;
}
/* See if it is a special token of length 2. */
if (explen > 1)
- for (i = 0; i < sizeof (tokentab2) / sizeof (tokentab2[0]); i++)
- if (strncasecmp (tokstart, tokentab2[i].operator, 2) == 0
- && (!isalpha (tokentab2[i].operator[0]) || explen == 2
+ for (int i = 0; i < sizeof (tokentab2) / sizeof (tokentab2[0]); i++)
+ if (strncasecmp (tokstart, tokentab2[i].oper, 2) == 0
+ && (!isalpha (tokentab2[i].oper[0]) || explen == 2
|| (!isalpha (tokstart[2])
&& !isdigit (tokstart[2]) && tokstart[2] != '_')))
{
- lexptr += 2;
+ pstate->lexptr += 2;
yylval.opcode = tokentab2[i].opcode;
return tokentab2[i].token;
}
switch (c = *tokstart)
{
case 0:
- if (search_field && parse_completion)
+ if (search_field && pstate->parse_completion)
return COMPLETE;
else
return 0;
case ' ':
case '\t':
case '\n':
- lexptr++;
+ pstate->lexptr++;
goto retry;
case '\'':
/* We either have a character constant ('0' or '\177' for example)
or we have a quoted symbol reference ('foo(int,int)' in object pascal
for example). */
- lexptr++;
- c = *lexptr++;
+ pstate->lexptr++;
+ c = *pstate->lexptr++;
if (c == '\\')
- c = parse_escape (parse_gdbarch (pstate), &lexptr);
+ c = parse_escape (pstate->gdbarch (), &pstate->lexptr);
else if (c == '\'')
error (_("Empty character constant."));
yylval.typed_val_int.val = c;
yylval.typed_val_int.type = parse_type (pstate)->builtin_char;
- c = *lexptr++;
+ c = *pstate->lexptr++;
if (c != '\'')
{
namelen = skip_quoted (tokstart) - tokstart;
if (namelen > 2)
{
- lexptr = tokstart + namelen;
- if (lexptr[-1] != '\'')
+ pstate->lexptr = tokstart + namelen;
+ if (pstate->lexptr[-1] != '\'')
error (_("Unmatched single quote."));
namelen -= 2;
tokstart++;
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;
case '"':
break;
case '\\':
++tokptr;
- c = parse_escape (parse_gdbarch (pstate), &tokptr);
+ c = parse_escape (pstate->gdbarch (), &tokptr);
if (c == -1)
{
continue;
tempbuf[tempbufindex] = '\0'; /* See note above. */
yylval.sval.ptr = tempbuf;
yylval.sval.length = tempbufindex;
- lexptr = tokptr;
+ pstate->lexptr = tokptr;
return (STRING);
}
return 0;
}
- lexptr += namelen;
+ pstate->lexptr += namelen;
tryname:
inserted in FPC stabs debug info. */
static const char this_name[] = "this";
- if (lookup_symbol (this_name, expression_context_block,
- VAR_DOMAIN, NULL))
+ if (lookup_symbol (this_name, pstate->expression_context_block,
+ VAR_DOMAIN, NULL).symbol)
{
free (uptokstart);
return THIS;
so in expression to enter hexadecimal values
we still need to use C syntax with 0xff */
write_dollar_variable (pstate, yylval.sval);
- tmp = alloca (namelen + 1);
+ tmp = (char *) alloca (namelen + 1);
memcpy (tmp, tokstart, namelen);
tmp[namelen] = '\0';
intvar = lookup_only_internalvar (tmp + 1);
free (uptokstart);
- return VARIABLE;
+ return DOLLAR_VARIABLE;
}
/* Use token-type BLOCKNAME for symbols that happen to be defined as
int is_a_field = 0;
int hextype;
-
+ is_a_field_of_this.type = NULL;
if (search_field && current_type)
is_a_field = (lookup_struct_elt_type (current_type, tmp, 1) != NULL);
if (is_a_field)
sym = NULL;
else
- sym = lookup_symbol (tmp, expression_context_block,
- VAR_DOMAIN, &is_a_field_of_this);
+ sym = lookup_symbol (tmp, pstate->expression_context_block,
+ VAR_DOMAIN, &is_a_field_of_this).symbol;
/* second chance uppercased (as Free Pascal does). */
if (!sym && is_a_field_of_this.type == NULL && !is_a_field)
{
- for (i = 0; i <= namelen; i++)
+ for (int i = 0; i <= namelen; i++)
{
if ((tmp[i] >= 'a' && tmp[i] <= 'z'))
tmp[i] -= ('a'-'A');
if (is_a_field)
sym = NULL;
else
- sym = lookup_symbol (tmp, expression_context_block,
- VAR_DOMAIN, &is_a_field_of_this);
+ sym = lookup_symbol (tmp, pstate->expression_context_block,
+ VAR_DOMAIN, &is_a_field_of_this).symbol;
}
/* Third chance Capitalized (as GPC does). */
if (!sym && is_a_field_of_this.type == NULL && !is_a_field)
{
- for (i = 0; i <= namelen; i++)
+ for (int i = 0; i <= namelen; i++)
{
if (i == 0)
{
if (is_a_field)
sym = NULL;
else
- sym = lookup_symbol (tmp, expression_context_block,
- VAR_DOMAIN, &is_a_field_of_this);
+ sym = lookup_symbol (tmp, pstate->expression_context_block,
+ VAR_DOMAIN, &is_a_field_of_this).symbol;
}
- if (is_a_field)
+ if (is_a_field || (is_a_field_of_this.type != NULL))
{
tempbuf = (char *) realloc (tempbuf, namelen + 1);
strncpy (tempbuf, tmp, namelen);
tempbuf [namelen] = 0;
yylval.sval.ptr = tempbuf;
yylval.sval.length = namelen;
+ yylval.ssym.sym.symbol = NULL;
+ yylval.ssym.sym.block = NULL;
free (uptokstart);
- return FIELDNAME;
+ yylval.ssym.is_a_field_of_this = is_a_field_of_this.type != NULL;
+ if (is_a_field)
+ return FIELDNAME;
+ else
+ return NAME;
}
/* Call lookup_symtab, not lookup_partial_symtab, in case there are
no psymtabs (coff, xcoff, or some future change to blow away the
if ((sym && SYMBOL_CLASS (sym) == LOC_BLOCK)
|| lookup_symtab (tmp))
{
- yylval.ssym.sym = sym;
+ yylval.ssym.sym.symbol = sym;
+ yylval.ssym.sym.block = NULL;
yylval.ssym.is_a_field_of_this = is_a_field_of_this.type != NULL;
free (uptokstart);
return BLOCKNAME;
us whether a type is nested), we just ignore the
containing type. */
- p = lexptr;
+ p = pstate->lexptr;
best_sym = sym;
while (1)
{
struct symbol *cur_sym;
/* As big as the whole rest of the expression, which is
at least big enough. */
- char *ncopy = alloca (strlen (tmp)+strlen (namestart)+3);
+ char *ncopy
+ = (char *) alloca (strlen (tmp) + strlen (namestart)
+ + 3);
char *tmp1;
tmp1 = ncopy;
tmp1 += 2;
memcpy (tmp1, namestart, p - namestart);
tmp1[p - namestart] = '\0';
- cur_sym = lookup_symbol (ncopy, expression_context_block,
- VAR_DOMAIN, NULL);
+ cur_sym
+ = lookup_symbol (ncopy,
+ pstate->expression_context_block,
+ VAR_DOMAIN, NULL).symbol;
if (cur_sym)
{
if (SYMBOL_CLASS (cur_sym) == LOC_TYPEDEF)
{
best_sym = cur_sym;
- lexptr = p;
+ pstate->lexptr = p;
}
else
break;
return TYPENAME;
}
yylval.tsym.type
- = language_lookup_primitive_type (parse_language (pstate),
- parse_gdbarch (pstate), tmp);
+ = language_lookup_primitive_type (pstate->language (),
+ pstate->gdbarch (), tmp);
if (yylval.tsym.type != NULL)
{
free (uptokstart);
hextype = parse_number (pstate, tokstart, namelen, 0, &newlval);
if (hextype == INT)
{
- yylval.ssym.sym = sym;
+ yylval.ssym.sym.symbol = sym;
+ yylval.ssym.sym.block = NULL;
yylval.ssym.is_a_field_of_this = is_a_field_of_this.type != NULL;
free (uptokstart);
return NAME_OR_INT;
free(uptokstart);
/* Any other kind of symbol. */
- yylval.ssym.sym = sym;
- yylval.ssym.is_a_field_of_this = is_a_field_of_this.type != NULL;
+ yylval.ssym.sym.symbol = sym;
+ yylval.ssym.sym.block = NULL;
return NAME;
}
}
int
pascal_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);
gdb_assert (par_state != NULL);
pstate = par_state;
+ paren_depth = 0;
- result = yyparse ();
- do_cleanups (c);
- return result;
+ 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);
}