/* 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.
#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
+/* 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 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 */
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);
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) {
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); }
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))
+ innermost_block.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;
+ innermost_block.update (sym);
write_exp_elt_opcode (pstate, OP_THIS);
write_exp_elt_opcode (pstate, OP_THIS);
write_exp_elt_opcode (pstate, STRUCTOP_PTR);
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;
}
struct token
{
- char *oper;
+ const char *oper;
int token;
enum exp_opcode opcode;
};
{
int c;
int namelen;
- unsigned int i;
const char *tokstart;
char *uptokstart;
const char *tokptr;
/* See if it is a special token of length 3. */
if (explen > 2)
- for (i = 0; i < sizeof (tokentab3) / sizeof (tokentab3[0]); i++)
+ 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])
/* See if it is a special token of length 2. */
if (explen > 1)
- for (i = 0; i < sizeof (tokentab2) / sizeof (tokentab2[0]); i++)
+ 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])
goto symbol; /* Nope, must be a symbol. */
}
- /* FALL THRU into number case. */
+ /* FALL THRU. */
case '0':
case '1':
static const char this_name[] = "this";
if (lookup_symbol (this_name, expression_context_block,
- VAR_DOMAIN, NULL))
+ 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
sym = NULL;
else
sym = lookup_symbol (tmp, expression_context_block,
- VAR_DOMAIN, &is_a_field_of_this);
+ 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');
sym = NULL;
else
sym = lookup_symbol (tmp, expression_context_block,
- VAR_DOMAIN, &is_a_field_of_this);
+ 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)
{
sym = NULL;
else
sym = lookup_symbol (tmp, expression_context_block,
- VAR_DOMAIN, &is_a_field_of_this);
+ VAR_DOMAIN, &is_a_field_of_this).symbol;
}
if (is_a_field || (is_a_field_of_this.type != NULL))
tempbuf [namelen] = 0;
yylval.sval.ptr = tempbuf;
yylval.sval.length = namelen;
- yylval.ssym.sym = NULL;
+ yylval.ssym.sym.symbol = NULL;
+ yylval.ssym.sym.block = NULL;
free (uptokstart);
yylval.ssym.is_a_field_of_this = is_a_field_of_this.type != NULL;
if (is_a_field)
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;
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;
memcpy (tmp1, namestart, p - namestart);
tmp1[p - namestart] = '\0';
cur_sym = lookup_symbol (ncopy, expression_context_block,
- VAR_DOMAIN, NULL);
+ VAR_DOMAIN, NULL).symbol;
if (cur_sym)
{
if (SYMBOL_CLASS (cur_sym) == LOC_TYPEDEF)
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.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;
- 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;
- error (_("A %s in expression, near `%s'."), (msg ? msg : "error"), lexptr);
+ error (_("A %s in expression, near `%s'."), msg, lexptr);
}
projects / deliverable / binutils-gdb.git / blobdiff