/* YACC parser for C expressions, for GDB.
- Copyright (C) 1986-2014 Free Software Foundation, Inc.
+ Copyright (C) 1986-2017 Free Software Foundation, Inc.
This file is part of GDB.
with include files (<malloc.h> and <stdlib.h> for example) just became
too messy, particularly when such includes can be inserted at random
times by the parser generator. */
-
+
%{
#include "defs.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 c_maxdepth
-#define yyparse c_parse_internal
-#define yylex c_lex
-#define yyerror c_error
-#define yylval c_lval
-#define yychar c_char
-#define yydebug c_debug
-#define yypact c_pact
-#define yyr1 c_r1
-#define yyr2 c_r2
-#define yydef c_def
-#define yychk c_chk
-#define yypgo c_pgo
-#define yyact c_act
-#define yyexca c_exca
-#define yyerrflag c_errflag
-#define yynerrs c_nerrs
-#define yyps c_ps
-#define yypv c_pv
-#define yys c_s
-#define yy_yys c_yys
-#define yystate c_state
-#define yytmp c_tmp
-#define yyv c_v
-#define yy_yyv c_yyv
-#define yyval c_val
-#define yylloc c_lloc
-#define yyreds c_reds /* With YYDEBUG defined */
-#define yytoks c_toks /* With YYDEBUG defined */
-#define yyname c_name /* With YYDEBUG defined */
-#define yyrule c_rule /* With YYDEBUG defined */
-#define yylhs c_yylhs
-#define yylen c_yylen
-#define yydefred c_yydefred
-#define yydgoto c_yydgoto
-#define yysindex c_yysindex
-#define yyrindex c_yyrindex
-#define yygindex c_yygindex
-#define yytable c_yytable
-#define yycheck c_yycheck
-#define yyss c_yyss
-#define yysslim c_yysslim
-#define yyssp c_yyssp
-#define yystacksize c_yystacksize
-#define yyvs c_yyvs
-#define yyvsp c_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 c_
+#include "yy-remap.h"
/* The state of the parser, used internally when we are parsing the
expression. */
static int yylex (void);
-void yyerror (char *);
+void yyerror (const char *);
static int type_aggregate_p (struct type *);
struct type_stack *type_stack;
- struct objc_class_str class;
+ struct objc_class_str theclass;
}
%{
#endif
%}
-%type <voidval> exp exp1 type_exp start variable qualified_name lcurly
+%type <voidval> exp exp1 type_exp start variable qualified_name lcurly function_method
%type <lval> rcurly
%type <tval> type typebase
%type <tvec> nonempty_typelist func_mod parameter_typelist
%token <ssym> UNKNOWN_CPP_NAME
%token <voidval> COMPLETE
%token <tsym> TYPENAME
-%token <class> CLASSNAME /* ObjC Class name */
+%token <theclass> CLASSNAME /* ObjC Class name */
%type <sval> name
%type <svec> string_exp
%type <ssym> name_not_typename
-%type <tsym> typename
+%type <tsym> type_name
/* This is like a '[' token, but is only generated when parsing
Objective C. This lets us reuse the same parser without
E.g. "c" when input_radix==16. Depending on the parse, it will be
turned into a name or into a number. */
-%token <ssym> NAME_OR_INT
+%token <ssym> NAME_OR_INT
%token OPERATOR
%token STRUCT CLASS UNION ENUM SIZEOF UNSIGNED COLONCOLON
%token TEMPLATE
%token ERROR
%token NEW DELETE
-%type <sval> operator
+%type <sval> oper
%token REINTERPRET_CAST DYNAMIC_CAST STATIC_CAST CONST_CAST
%token ENTRY
%token TYPEOF
%left '*' '/' '%'
%right UNARY INCREMENT DECREMENT
%right ARROW ARROW_STAR '.' DOT_STAR '[' OBJC_LBRAC '('
-%token <ssym> BLOCKNAME
+%token <ssym> BLOCKNAME
%token <bval> FILENAME
%type <bval> block
%left COLONCOLON
exp : OBJC_LBRAC TYPENAME
{
- CORE_ADDR class;
+ CORE_ADDR theclass;
- class = lookup_objc_class (parse_gdbarch (pstate),
+ theclass = lookup_objc_class (parse_gdbarch (pstate),
copy_name ($2.stoken));
- if (class == 0)
+ if (theclass == 0)
error (_("%s is not an ObjC Class"),
copy_name ($2.stoken));
write_exp_elt_opcode (pstate, OP_LONG);
write_exp_elt_type (pstate,
parse_type (pstate)->builtin_int);
- write_exp_elt_longcst (pstate, (LONGEST) class);
+ write_exp_elt_longcst (pstate, (LONGEST) theclass);
write_exp_elt_opcode (pstate, OP_LONG);
start_msglist();
}
write_exp_elt_opcode (pstate, OP_LONG);
write_exp_elt_type (pstate,
parse_type (pstate)->builtin_int);
- write_exp_elt_longcst (pstate, (LONGEST) $2.class);
+ write_exp_elt_longcst (pstate, (LONGEST) $2.theclass);
write_exp_elt_opcode (pstate, OP_LONG);
start_msglist();
}
{ add_msglist(0, 0); }
;
-exp : exp '('
+exp : exp '('
/* This is to save the value of arglist_len
being accumulated by an outer function call. */
{ start_arglist (); }
write_exp_elt_opcode (pstate, OP_FUNCALL); }
;
+/* This is here to disambiguate with the production for
+ "func()::static_var" further below, which uses
+ function_method_void. */
+exp : exp '(' ')' %prec ARROW
+ { start_arglist ();
+ write_exp_elt_opcode (pstate, OP_FUNCALL);
+ write_exp_elt_longcst (pstate,
+ (LONGEST) end_arglist ());
+ write_exp_elt_opcode (pstate, OP_FUNCALL); }
+ ;
+
+
exp : UNKNOWN_CPP_NAME '('
{
/* This could potentially be a an argument defined
{ arglist_len++; }
;
-exp : exp '(' parameter_typelist ')' const_or_volatile
+function_method: exp '(' parameter_typelist ')' const_or_volatile
{ int i;
VEC (type_ptr) *type_list = $3;
struct type *type_elt;
}
;
+function_method_void: exp '(' ')' const_or_volatile
+ { write_exp_elt_opcode (pstate, TYPE_INSTANCE);
+ write_exp_elt_longcst (pstate, 0);
+ write_exp_elt_longcst (pstate, 0);
+ write_exp_elt_opcode (pstate, TYPE_INSTANCE);
+ }
+ ;
+
+exp : function_method
+ ;
+
+/* Normally we must interpret "func()" as a function call, instead of
+ a type. The user needs to write func(void) to disambiguate.
+ However, in the "func()::static_var" case, there's no
+ ambiguity. */
+function_method_void_or_typelist: function_method
+ | function_method_void
+ ;
+
+exp : function_method_void_or_typelist COLONCOLON name
+ {
+ write_exp_elt_opcode (pstate, OP_FUNC_STATIC_VAR);
+ write_exp_string (pstate, $3);
+ write_exp_elt_opcode (pstate, OP_FUNC_STATIC_VAR);
+ }
+ ;
+
rcurly : '}'
{ $$ = end_arglist () - 1; }
;
exp : exp '?' exp ':' exp %prec '?'
{ write_exp_elt_opcode (pstate, TERNOP_COND); }
;
-
+
exp : exp '=' exp
{ write_exp_elt_opcode (pstate, BINOP_ASSIGN); }
;
(parse_language (pstate),
parse_gdbarch (pstate),
"int"));
- CHECK_TYPEDEF (type);
+ type = check_typedef (type);
/* $5.3.3/2 of the C++ Standard (n3290 draft)
says of sizeof: "When applied to a reference
or a reference type, the result is the size of
the referenced type." */
- if (TYPE_CODE (type) == TYPE_CODE_REF)
+ if (TYPE_IS_REFERENCE (type))
type = check_typedef (TYPE_TARGET_TYPE (type));
write_exp_elt_longcst (pstate,
(LONGEST) TYPE_LENGTH (type));
vec->type = $1.type;
vec->length = $1.length;
- vec->ptr = malloc ($1.length + 1);
+ vec->ptr = (char *) malloc ($1.length + 1);
memcpy (vec->ptr, $1.ptr, $1.length + 1);
}
for convenience. */
char *p;
++$$.len;
- $$.tokens = realloc ($$.tokens,
- $$.len * sizeof (struct typed_stoken));
+ $$.tokens = XRESIZEVEC (struct typed_stoken,
+ $$.tokens, $$.len);
- p = malloc ($2.length + 1);
+ p = (char *) malloc ($2.length + 1);
memcpy (p, $2.ptr, $2.length + 1);
$$.tokens[$$.len - 1].type = $2.type;
exp : string_exp
{
int i;
- enum c_string_type type = C_STRING;
+ c_string_type type = C_STRING;
for (i = 0; i < $1.len; ++i)
{
if (type != C_STRING
&& type != $1.tokens[i].type)
error (_("Undefined string concatenation."));
- type = $1.tokens[i].type;
+ type = (enum c_string_type_values) $1.tokens[i].type;
break;
default:
/* internal error */
;
/* C++. */
-exp : TRUEKEYWORD
+exp : TRUEKEYWORD
{ write_exp_elt_opcode (pstate, OP_LONG);
write_exp_elt_type (pstate,
parse_type (pstate)->builtin_bool);
write_exp_elt_opcode (pstate, OP_LONG); }
;
-exp : FALSEKEYWORD
+exp : FALSEKEYWORD
{ write_exp_elt_opcode (pstate, OP_LONG);
write_exp_elt_type (pstate,
parse_type (pstate)->builtin_bool);
block : BLOCKNAME
{
- if ($1.sym)
- $$ = SYMBOL_BLOCK_VALUE ($1.sym);
+ if ($1.sym.symbol)
+ $$ = SYMBOL_BLOCK_VALUE ($1.sym.symbol);
else
error (_("No file or function \"%s\"."),
copy_name ($1.stoken));
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: name_not_typename ENTRY
- { struct symbol *sym = $1.sym;
+ { struct symbol *sym = $1.sym.symbol;
if (sym == NULL || !SYMBOL_IS_ARGUMENT (sym)
|| !symbol_read_needs_frame (sym))
;
variable: block COLONCOLON name
- { struct symbol *sym;
- sym = lookup_symbol (copy_name ($3), $1,
- VAR_DOMAIN, NULL);
- if (sym == 0)
+ { struct block_symbol sym
+ = lookup_symbol (copy_name ($3), $1,
+ VAR_DOMAIN, NULL);
+
+ if (sym.symbol == 0)
error (_("No symbol \"%s\" in specified context."),
copy_name ($3));
- if (symbol_read_needs_frame (sym))
+ if (symbol_read_needs_frame (sym.symbol))
{
if (innermost_block == 0
- || contained_in (block_found,
+ || contained_in (sym.block,
innermost_block))
- innermost_block = block_found;
+ innermost_block = sym.block;
}
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: TYPENAME COLONCOLON name
{
struct type *type = $1.type;
- CHECK_TYPEDEF (type);
+ type = check_typedef (type);
if (!type_aggregate_p (type))
error (_("`%s' is not defined as an aggregate type."),
TYPE_SAFE_NAME (type));
struct stoken tmp_token;
char *buf;
- CHECK_TYPEDEF (type);
+ type = check_typedef (type);
if (!type_aggregate_p (type))
error (_("`%s' is not defined as an aggregate type."),
TYPE_SAFE_NAME (type));
- buf = alloca ($4.length + 2);
+ buf = (char *) alloca ($4.length + 2);
tmp_token.ptr = buf;
tmp_token.length = $4.length + 1;
buf[0] = '~';
struct symbol *sym;
struct bound_minimal_symbol msymbol;
- sym =
- lookup_symbol (name, (const struct block *) NULL,
- VAR_DOMAIN, NULL);
+ sym
+ = lookup_symbol (name, (const struct block *) 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 (symbol_read_needs_frame (sym.symbol))
{
if (innermost_block == 0
- || contained_in (block_found,
+ || contained_in (sym.block,
innermost_block))
- innermost_block = block_found;
+ innermost_block = sym.block;
}
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);
}
else if ($1.is_a_field_of_this)
not inadvertently convert from a method call
to data ref. */
if (innermost_block == 0
- || contained_in (block_found,
+ || contained_in (sym.block,
innermost_block))
- innermost_block = block_found;
+ innermost_block = sym.block;
write_exp_elt_opcode (pstate, OP_THIS);
write_exp_elt_opcode (pstate, OP_THIS);
write_exp_elt_opcode (pstate, STRUCTOP_PTR);
}
else
{
- struct bound_minimal_symbol msymbol;
char *arg = copy_name ($1.stoken);
- msymbol =
- lookup_bound_minimal_symbol (arg);
- 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."));
+ bound_minimal_symbol msymbol
+ = lookup_bound_minimal_symbol (arg);
+ if (msymbol.minsym == NULL)
+ {
+ 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));
+ }
+
+ /* This minsym might be an alias for
+ another function. See if we can find
+ the debug symbol for the target, and
+ if so, use it instead, since it has
+ return type / prototype info. This
+ is important for example for "p
+ *__errno_location()". */
+ symbol *alias_target
+ = find_function_alias_target (msymbol);
+ if (alias_target != NULL)
+ {
+ write_exp_elt_opcode (pstate, OP_VAR_VALUE);
+ write_exp_elt_block
+ (pstate, SYMBOL_BLOCK_VALUE (alias_target));
+ write_exp_elt_sym (pstate, alias_target);
+ write_exp_elt_opcode (pstate, OP_VAR_VALUE);
+ }
else
- error (_("No symbol \"%s\" in current context."),
- copy_name ($1.stoken));
+ write_exp_msymbol (pstate, msymbol);
}
}
;
;
const_or_volatile_or_space_identifier_noopt: cv_with_space_id
- | const_or_volatile_noopt
+ | const_or_volatile_noopt
;
-const_or_volatile_or_space_identifier:
+const_or_volatile_or_space_identifier:
const_or_volatile_or_space_identifier_noopt
|
;
ptr_operator '*'
{ insert_type (tp_pointer); }
const_or_volatile_or_space_identifier
- | '*'
+ | '*'
{ insert_type (tp_pointer); }
const_or_volatile_or_space_identifier
| '&'
{ insert_type (tp_reference); }
| '&' ptr_operator
{ insert_type (tp_reference); }
+ | ANDAND
+ { insert_type (tp_rvalue_reference); }
+ | ANDAND ptr_operator
+ { insert_type (tp_rvalue_reference); }
;
ptr_operator_ts: ptr_operator
abs_decl: ptr_operator_ts direct_abs_decl
{ $$ = append_type_stack ($2, $1); }
- | ptr_operator_ts
+ | ptr_operator_ts
| direct_abs_decl
;
{ $$ = lookup_unsigned_typename (parse_language (pstate),
parse_gdbarch (pstate),
"short"); }
- | SHORT UNSIGNED
+ | SHORT UNSIGNED
{ $$ = lookup_unsigned_typename (parse_language (pstate),
parse_gdbarch (pstate),
"short"); }
expression_context_block); }
| CLASS COMPLETE
{
- mark_completion_tag (TYPE_CODE_CLASS, "", 0);
+ mark_completion_tag (TYPE_CODE_STRUCT, "", 0);
$$ = NULL;
}
| CLASS name COMPLETE
{
- mark_completion_tag (TYPE_CODE_CLASS, $2.ptr,
+ mark_completion_tag (TYPE_CODE_STRUCT, $2.ptr,
$2.length);
$$ = NULL;
}
$2.length);
$$ = NULL;
}
- | UNSIGNED typename
+ | UNSIGNED type_name
{ $$ = lookup_unsigned_typename (parse_language (pstate),
parse_gdbarch (pstate),
TYPE_NAME($2.type)); }
{ $$ = lookup_unsigned_typename (parse_language (pstate),
parse_gdbarch (pstate),
"int"); }
- | SIGNED_KEYWORD typename
+ | SIGNED_KEYWORD type_name
{ $$ = lookup_signed_typename (parse_language (pstate),
parse_gdbarch (pstate),
TYPE_NAME($2.type)); }
"int"); }
/* It appears that this rule for templates is never
reduced; template recognition happens by lookahead
- in the token processing code in yylex. */
+ in the token processing code in yylex. */
| TEMPLATE name '<' type '>'
{ $$ = lookup_template_type(copy_name($2), $4,
expression_context_block);
}
- | const_or_volatile_or_space_identifier_noopt typebase
+ | const_or_volatile_or_space_identifier_noopt typebase
{ $$ = follow_types ($2); }
- | typebase const_or_volatile_or_space_identifier_noopt
+ | typebase const_or_volatile_or_space_identifier_noopt
{ $$ = follow_types ($1); }
;
-typename: TYPENAME
+type_name: TYPENAME
| INT_KEYWORD
{
$$.stoken.ptr = "int";
| VOLATILE_KEYWORD CONST_KEYWORD
;
-const_or_volatile_noopt: const_and_volatile
+const_or_volatile_noopt: const_and_volatile
{ insert_type (tp_const);
- insert_type (tp_volatile);
+ insert_type (tp_volatile);
}
| CONST_KEYWORD
{ insert_type (tp_const); }
{ insert_type (tp_volatile); }
;
-operator: OPERATOR NEW
+oper: OPERATOR NEW
{ $$ = operator_stoken (" new"); }
| OPERATOR DELETE
{ $$ = operator_stoken (" delete"); }
| OPERATOR OBJC_LBRAC ']'
{ $$ = operator_stoken ("[]"); }
| OPERATOR conversion_type_id
- { char *name;
- long length;
- struct ui_file *buf = mem_fileopen ();
+ { string_file buf;
- c_print_type ($2, NULL, buf, -1, 0,
+ c_print_type ($2, NULL, &buf, -1, 0,
&type_print_raw_options);
- name = ui_file_xstrdup (buf, &length);
- ui_file_delete (buf);
- $$ = operator_stoken (name);
- free (name);
+ $$ = operator_stoken (buf.c_str ());
}
;
| TYPENAME { $$ = $1.stoken; }
| NAME_OR_INT { $$ = $1.stoken; }
| UNKNOWN_CPP_NAME { $$ = $1.stoken; }
- | operator { $$ = $1; }
+ | oper { $$ = $1; }
;
name_not_typename : NAME
context where only a name could occur, this might be useful.
| NAME_OR_INT
*/
- | operator
+ | oper
{
struct field_of_this_result is_a_field_of_this;
static void
write_destructor_name (struct parser_state *par_state, struct stoken token)
{
- char *copy = alloca (token.length + 1);
+ char *copy = (char *) alloca (token.length + 1);
copy[0] = '~';
memcpy (©[1], token.ptr, token.length);
}
/* Returns a stoken of the operator name given by OP (which does not
- include the string "operator"). */
+ include the string "operator"). */
+
static struct stoken
operator_stoken (const char *op)
{
- static const char *operator_string = "operator";
struct stoken st = { NULL, 0 };
char *buf;
- st.length = strlen (operator_string) + strlen (op);
- buf = malloc (st.length + 1);
- strcpy (buf, operator_string);
+ st.length = CP_OPERATOR_LEN + strlen (op);
+ buf = (char *) malloc (st.length + 1);
+ strcpy (buf, CP_OPERATOR_STR);
strcat (buf, op);
st.ptr = buf;
struct type *unsigned_type;
char *p;
- p = alloca (len);
+ p = (char *) alloca (len);
memcpy (p, buf, len);
if (parsed_float)
}
/* Handle base-switching prefixes 0x, 0t, 0d, 0 */
- if (p[0] == '0')
+ if (p[0] == '0' && len > 1)
switch (p[1])
{
case 'x':
else
{
int shift;
- if (sizeof (ULONGEST) * HOST_CHAR_BIT
+ if (sizeof (ULONGEST) * HOST_CHAR_BIT
< gdbarch_long_long_bit (parse_gdbarch (par_state)))
/* A long long does not fit in a LONGEST. */
shift = (sizeof (ULONGEST) * HOST_CHAR_BIT - 1);
/* If the high bit of the worked out type is set then this number
has to be unsigned. */
- if (unsigned_p || (n & high_bit))
+ if (unsigned_p || (n & high_bit))
{
putithere->typed_val_int.type = unsigned_type;
}
- else
+ else
{
putithere->typed_val_int.type = signed_type;
}
stored in VALUE. This returns a token value, either STRING or
CHAR, depending on what was parsed. *HOST_CHARS is set to the
number of host characters in the literal. */
+
static int
parse_string_or_char (const char *tokptr, const char **outptr,
struct typed_stoken *value, int *host_chars)
{
int quote;
- enum c_string_type type;
+ c_string_type type;
int is_objc = 0;
/* Build the gdb internal form of the input string in tempbuf. Note
++tokptr;
value->type = type;
- value->ptr = obstack_base (&tempbuf);
+ value->ptr = (char *) obstack_base (&tempbuf);
value->length = obstack_object_size (&tempbuf);
*outptr = tokptr;
/* This is used to associate some attributes with a token. */
-enum token_flags
+enum token_flag
{
/* If this bit is set, the token is C++-only. */
FLAG_SHADOW = 2
};
+DEF_ENUM_FLAGS_TYPE (enum token_flag, token_flags);
struct token
{
- char *operator;
+ const char *oper;
int token;
enum exp_opcode opcode;
- enum token_flags flags;
+ token_flags flags;
};
static const struct token tokentab3[] =
/* Copy to the obstack, and then free the intermediate
expansion. */
- copy = obstack_copy0 (&expansion_obstack, expansion, strlen (expansion));
+ copy = (char *) obstack_copy0 (&expansion_obstack, expansion,
+ strlen (expansion));
xfree (expansion);
/* Save the old lexptr value, so we can return to it when we're done
lexptr = copy;
}
-
static int
scanning_macro_expansion (void)
{
return macro_original_text != 0;
}
-
-static void
+static void
finished_macro_expansion (void)
{
/* There'd better be something to pop back to. */
macro_original_text = 0;
}
-
static void
scan_macro_cleanup (void *dummy)
{
tokstart = lexptr;
/* See if it is a special token of length 3. */
for (i = 0; i < sizeof tokentab3 / sizeof tokentab3[0]; i++)
- if (strncmp (tokstart, tokentab3[i].operator, 3) == 0)
+ if (strncmp (tokstart, tokentab3[i].oper, 3) == 0)
{
if ((tokentab3[i].flags & FLAG_CXX) != 0
&& parse_language (par_state)->la_language != language_cplus)
/* See if it is a special token of length 2. */
for (i = 0; i < sizeof tokentab2 / sizeof tokentab2[0]; i++)
- if (strncmp (tokstart, tokentab2[i].operator, 2) == 0)
+ if (strncmp (tokstart, tokentab2[i].oper, 2) == 0)
{
if ((tokentab2[i].flags & FLAG_CXX) != 0
&& parse_language (par_state)->la_language != language_cplus)
that we look ahead only when the '<' adjoins non-whitespace
characters; for comparison expressions, e.g. "a < b > c",
there must be spaces before the '<', etc. */
-
const char *p = find_template_name_end (tokstart + namelen);
if (p)
/* Catch specific keywords. */
copy = copy_name (yylval.sval);
for (i = 0; i < sizeof ident_tokens / sizeof ident_tokens[0]; i++)
- if (strcmp (copy, ident_tokens[i].operator) == 0)
+ if (strcmp (copy, ident_tokens[i].oper) == 0)
{
if ((ident_tokens[i].flags & FLAG_CXX) != 0
&& parse_language (par_state)->la_language != language_cplus)
VAR_DOMAIN,
(parse_language (par_state)->la_language
== language_cplus ? &is_a_field_of_this
- : NULL))
+ : NULL)).symbol
!= NULL)
{
/* The keyword is shadowed. */
saw_name_at_eof = 1;
yylval.ssym.stoken = yylval.sval;
- yylval.ssym.sym = NULL;
+ yylval.ssym.sym.symbol = NULL;
+ yylval.ssym.sym.block = NULL;
yylval.ssym.is_a_field_of_this = 0;
return NAME;
}
/* Temporary storage for c_lex; this holds symbol names as they are
built up. */
-static struct obstack name_obstack;
+auto_obstack name_obstack;
/* Classify a NAME token. The contents of the token are in `yylval'.
Updates yylval and returns the new token type. BLOCK is the block
in which lookups start; this can be NULL to mean the global scope.
IS_QUOTED_NAME is non-zero if the name token was originally quoted
in single quotes. */
+
static int
classify_name (struct parser_state *par_state, const struct block *block,
int is_quoted_name)
{
- struct symbol *sym;
+ struct block_symbol bsym;
char *copy;
struct field_of_this_result is_a_field_of_this;
we can refer to it unconditionally below. */
memset (&is_a_field_of_this, 0, sizeof (is_a_field_of_this));
- sym = lookup_symbol (copy, block, VAR_DOMAIN,
- parse_language (par_state)->la_name_of_this
- ? &is_a_field_of_this : NULL);
+ bsym = lookup_symbol (copy, block, VAR_DOMAIN,
+ parse_language (par_state)->la_name_of_this
+ ? &is_a_field_of_this : NULL);
- if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK)
+ if (bsym.symbol && SYMBOL_CLASS (bsym.symbol) == LOC_BLOCK)
{
- yylval.ssym.sym = sym;
+ yylval.ssym.sym = bsym;
yylval.ssym.is_a_field_of_this = is_a_field_of_this.type != NULL;
return BLOCKNAME;
}
- else if (!sym)
+ else if (!bsym.symbol)
{
/* If we found a field of 'this', we might have erroneously
found a constructor where we wanted a type name. Handle this
{
struct field_of_this_result inner_is_a_field_of_this;
- sym = lookup_symbol (copy, block, STRUCT_DOMAIN,
- &inner_is_a_field_of_this);
- if (sym != NULL)
+ bsym = lookup_symbol (copy, block, STRUCT_DOMAIN,
+ &inner_is_a_field_of_this);
+ if (bsym.symbol != NULL)
{
- yylval.tsym.type = SYMBOL_TYPE (sym);
+ yylval.tsym.type = SYMBOL_TYPE (bsym.symbol);
return TYPENAME;
}
}
symtab = lookup_symtab (copy);
if (symtab)
{
- yylval.bval = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab),
+ yylval.bval = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (symtab),
STATIC_BLOCK);
return FILENAME;
}
}
}
- if (sym && SYMBOL_CLASS (sym) == LOC_TYPEDEF)
+ if (bsym.symbol && SYMBOL_CLASS (bsym.symbol) == LOC_TYPEDEF)
{
- yylval.tsym.type = SYMBOL_TYPE (sym);
+ yylval.tsym.type = SYMBOL_TYPE (bsym.symbol);
return TYPENAME;
}
- yylval.tsym.type
- = language_lookup_primitive_type_by_name (parse_language (par_state),
- parse_gdbarch (par_state),
- copy);
- if (yylval.tsym.type != NULL)
- return TYPENAME;
-
/* See if it's an ObjC classname. */
- if (parse_language (par_state)->la_language == language_objc && !sym)
+ if (parse_language (par_state)->la_language == language_objc && !bsym.symbol)
{
CORE_ADDR Class = lookup_objc_class (parse_gdbarch (par_state), copy);
if (Class)
{
- yylval.class.class = Class;
+ struct symbol *sym;
+
+ yylval.theclass.theclass = Class;
sym = lookup_struct_typedef (copy, expression_context_block, 1);
if (sym)
- yylval.class.type = SYMBOL_TYPE (sym);
+ yylval.theclass.type = SYMBOL_TYPE (sym);
return CLASSNAME;
}
}
/* 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 (!bsym.symbol
&& ((copy[0] >= 'a' && copy[0] < 'a' + input_radix - 10)
|| (copy[0] >= 'A' && copy[0] < 'A' + input_radix - 10)))
{
YYSTYPE newlval; /* Its value is ignored. */
int hextype = parse_number (par_state, copy, yylval.sval.length,
0, &newlval);
+
if (hextype == INT)
{
- yylval.ssym.sym = sym;
+ yylval.ssym.sym = bsym;
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 = bsym;
yylval.ssym.is_a_field_of_this = is_a_field_of_this.type != NULL;
- if (sym == NULL
+ if (bsym.symbol == NULL
&& parse_language (par_state)->la_language == language_cplus
&& is_a_field_of_this.type == NULL
&& lookup_minimal_symbol (copy, NULL, NULL).minsym == NULL)
return ERROR;
copy = copy_name (yylval.ssym.stoken);
- yylval.ssym.sym = cp_lookup_nested_symbol (type, copy, block);
+ /* N.B. We assume the symbol can only be in VAR_DOMAIN. */
+ yylval.ssym.sym = cp_lookup_nested_symbol (type, copy, block, VAR_DOMAIN);
/* If no symbol was found, search for a matching base class named
COPY. This will allow users to enter qualified names of class members
relative to the `this' pointer. */
- if (yylval.ssym.sym == NULL)
+ if (yylval.ssym.sym.symbol == NULL)
{
- struct type *base_type = find_type_baseclass_by_name (type, copy);
+ struct type *base_type = cp_find_type_baseclass_by_name (type, copy);
if (base_type != NULL)
{
return ERROR;
}
- switch (SYMBOL_CLASS (yylval.ssym.sym))
+ switch (SYMBOL_CLASS (yylval.ssym.sym.symbol))
{
case LOC_BLOCK:
case LOC_LABEL:
named COPY when we really wanted a base class of the same name.
Double-check this case by looking for a base class. */
{
- struct type *base_type = find_type_baseclass_by_name (type, copy);
+ struct type *base_type = cp_find_type_baseclass_by_name (type, copy);
if (base_type != NULL)
{
return ERROR;
case LOC_TYPEDEF:
- yylval.tsym.type = SYMBOL_TYPE (yylval.ssym.sym);;
+ yylval.tsym.type = SYMBOL_TYPE (yylval.ssym.sym.symbol);
return TYPENAME;
default:
problem in our parsing approach, where the parser could not
distinguish between qualified names and qualified types at the
right point.
-
+
This approach is still not ideal, because it mishandles template
types. See the comment in lex_one_token for an example. However,
this is still an improvement over the earlier approach, and will
suffice until we move to better parsing technology. */
+
static int
yylex (void)
{
current = *VEC_index (token_and_value, token_fifo, next_to_examine);
++next_to_examine;
- obstack_free (&name_obstack, obstack_base (&name_obstack));
+ name_obstack.clear ();
checkpoint = 0;
if (current.token == FILENAME)
search_block = current.value.bval;
obstack_grow (&name_obstack, next->value.sval.ptr,
next->value.sval.length);
- yylval.sval.ptr = obstack_base (&name_obstack);
+ yylval.sval.ptr = (const char *) obstack_base (&name_obstack);
yylval.sval.length = obstack_object_size (&name_obstack);
current.value = yylval;
current.token = classification;
last_was_coloncolon = 0;
-
+
if (classification == NAME)
break;
the FIFO, and delete the other constituent tokens. */
if (checkpoint > 0)
{
- current.value.sval.ptr = obstack_copy0 (&expansion_obstack,
- current.value.sval.ptr,
- current.value.sval.length);
+ current.value.sval.ptr
+ = (const char *) obstack_copy0 (&expansion_obstack,
+ current.value.sval.ptr,
+ current.value.sval.length);
VEC_replace (token_and_value, token_fifo, 0, ¤t);
if (checkpoint > 1)
gdb_assert (par_state != NULL);
pstate = par_state;
+ /* Note that parsing (within yyparse) freely installs cleanups
+ assuming they'll be run here (below). */
+
back_to = make_cleanup (free_current_contents, &expression_macro_scope);
make_cleanup_clear_parser_state (&pstate);
gdb_assert (! macro_original_text);
make_cleanup (scan_macro_cleanup, 0);
- make_cleanup_restore_integer (&yydebug);
- yydebug = parser_debug;
+ scoped_restore restore_yydebug = make_scoped_restore (&yydebug,
+ parser_debug);
/* Initialize some state used by the lexer. */
last_was_structop = 0;
VEC_free (token_and_value, token_fifo);
popping = 0;
- obstack_init (&name_obstack);
- make_cleanup_obstack_free (&name_obstack);
+ name_obstack.clear ();
result = yyparse ();
do_cleanups (back_to);
switch (type)
{
case INT:
- fprintf (file, "typed_val_int<%s, %s>",
- TYPE_SAFE_NAME (value.typed_val_int.type),
- pulongest (value.typed_val_int.val));
+ parser_fprintf (file, "typed_val_int<%s, %s>",
+ TYPE_SAFE_NAME (value.typed_val_int.type),
+ pulongest (value.typed_val_int.val));
break;
case CHAR:
case STRING:
{
- char *copy = alloca (value.tsval.length + 1);
+ char *copy = (char *) alloca (value.tsval.length + 1);
memcpy (copy, value.tsval.ptr, value.tsval.length);
copy[value.tsval.length] = '\0';
- fprintf (file, "tsval<type=%d, %s>", value.tsval.type, copy);
+ parser_fprintf (file, "tsval<type=%d, %s>", value.tsval.type, copy);
}
break;
case NSSTRING:
case VARIABLE:
- fprintf (file, "sval<%s>", copy_name (value.sval));
+ parser_fprintf (file, "sval<%s>", copy_name (value.sval));
break;
case TYPENAME:
- fprintf (file, "tsym<type=%s, name=%s>",
- TYPE_SAFE_NAME (value.tsym.type),
- copy_name (value.tsym.stoken));
+ parser_fprintf (file, "tsym<type=%s, name=%s>",
+ TYPE_SAFE_NAME (value.tsym.type),
+ copy_name (value.tsym.stoken));
break;
case NAME:
case UNKNOWN_CPP_NAME:
case NAME_OR_INT:
case BLOCKNAME:
- fprintf (file, "ssym<name=%s, sym=%s, field_of_this=%d>",
- copy_name (value.ssym.stoken),
- (value.ssym.sym == NULL
- ? "(null)" : SYMBOL_PRINT_NAME (value.ssym.sym)),
- value.ssym.is_a_field_of_this);
+ parser_fprintf (file, "ssym<name=%s, sym=%s, field_of_this=%d>",
+ copy_name (value.ssym.stoken),
+ (value.ssym.sym.symbol == NULL
+ ? "(null)" : SYMBOL_PRINT_NAME (value.ssym.sym.symbol)),
+ value.ssym.is_a_field_of_this);
break;
case FILENAME:
- fprintf (file, "bval<%s>", host_address_to_string (value.bval));
+ parser_fprintf (file, "bval<%s>", host_address_to_string (value.bval));
break;
}
}
#endif
void
-yyerror (char *msg)
+yyerror (const char *msg)
{
if (prev_lexptr)
lexptr = prev_lexptr;
projects / deliverable / binutils-gdb.git / blobdiff