/* YACC parser for C expressions, for GDB.
- Copyright (C) 1986-2017 Free Software Foundation, Inc.
+ Copyright (C) 1986-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "parser-defs.h"
#include "language.h"
#include "c-lang.h"
+#include "c-support.h"
#include "bfd.h" /* Required by objfiles.h. */
#include "symfile.h" /* Required by objfiles.h. */
#include "objfiles.h" /* For have_full_symbols and have_partial_symbols */
#include "charset.h"
#include "block.h"
#include "cp-support.h"
-#include "dfp.h"
#include "macroscope.h"
#include "objc-lang.h"
#include "typeprint.h"
#include "cp-abi.h"
+#include "type-stack.h"
+#include "target-float.h"
-#define parse_type(ps) builtin_type (parse_gdbarch (ps))
+#define parse_type(ps) builtin_type (ps->gdbarch ())
/* Remap normal yacc parser interface names (yyparse, yylex, yyerror,
etc). */
static struct parser_state *pstate = NULL;
+/* Data that must be held for the duration of a parse. */
+
+struct c_parse_state
+{
+ /* These are used to hold type lists and type stacks that are
+ allocated during the parse. */
+ std::vector<std::unique_ptr<std::vector<struct type *>>> type_lists;
+ std::vector<std::unique_ptr<struct type_stack>> type_stacks;
+
+ /* Storage for some strings allocated during the parse. */
+ std::vector<gdb::unique_xmalloc_ptr<char>> strings;
+
+ /* When we find that lexptr (the global var defined in parse.c) is
+ pointing at a macro invocation, we expand the invocation, and call
+ scan_macro_expansion to save the old lexptr here and point lexptr
+ into the expanded text. When we reach the end of that, we call
+ end_macro_expansion to pop back to the value we saved here. The
+ macro expansion code promises to return only fully-expanded text,
+ so we don't need to "push" more than one level.
+
+ This is disgusting, of course. It would be cleaner to do all macro
+ expansion beforehand, and then hand that to lexptr. But we don't
+ really know where the expression ends. Remember, in a command like
+
+ (gdb) break *ADDRESS if CONDITION
+
+ we evaluate ADDRESS in the scope of the current frame, but we
+ evaluate CONDITION in the scope of the breakpoint's location. So
+ it's simply wrong to try to macro-expand the whole thing at once. */
+ const char *macro_original_text = nullptr;
+
+ /* We save all intermediate macro expansions on this obstack for the
+ duration of a single parse. The expansion text may sometimes have
+ to live past the end of the expansion, due to yacc lookahead.
+ Rather than try to be clever about saving the data for a single
+ token, we simply keep it all and delete it after parsing has
+ completed. */
+ auto_obstack expansion_obstack;
+
+ /* The type stack. */
+ struct type_stack type_stack;
+};
+
+/* This is set and cleared in c_parse. */
+
+static struct c_parse_state *cpstate;
+
int yyparse (void);
static int yylex (void);
-void yyerror (const char *);
+static void yyerror (const char *);
static int type_aggregate_p (struct type *);
LONGEST val;
struct type *type;
} typed_val_int;
- struct {
- DOUBLEST dval;
- struct type *type;
- } typed_val_float;
struct {
gdb_byte val[16];
struct type *type;
- } typed_val_decfloat;
+ } typed_val_float;
struct type *tval;
struct stoken sval;
struct typed_stoken tsval;
enum exp_opcode opcode;
struct stoken_vector svec;
- VEC (type_ptr) *tvec;
+ std::vector<struct type *> *tvec;
struct type_stack *type_stack;
static int parse_number (struct parser_state *par_state,
const char *, int, int, YYSTYPE *);
static struct stoken operator_stoken (const char *);
-static void check_parameter_typelist (VEC (type_ptr) *);
+static struct stoken typename_stoken (const char *);
+static void check_parameter_typelist (std::vector<struct type *> *);
static void write_destructor_name (struct parser_state *par_state,
struct stoken);
#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 <tval> type typebase scalar_type
%type <tvec> nonempty_typelist func_mod parameter_typelist
/* %type <bval> block */
%type <type_stack> ptr_operator_ts abs_decl direct_abs_decl
-%token <typed_val_int> INT
-%token <typed_val_float> FLOAT
-%token <typed_val_decfloat> DECFLOAT
+%token <typed_val_int> INT COMPLEX_INT
+%token <typed_val_float> FLOAT COMPLEX_FLOAT
/* Both NAME and TYPENAME tokens represent symbols in the input,
and both convey their data as strings.
%token <voidval> COMPLETE
%token <tsym> TYPENAME
%token <theclass> CLASSNAME /* ObjC Class name */
-%type <sval> name
+%type <sval> name field_name
%type <svec> string_exp
%type <ssym> name_not_typename
%type <tsym> type_name
%token <ssym> NAME_OR_INT
%token OPERATOR
-%token STRUCT CLASS UNION ENUM SIZEOF UNSIGNED COLONCOLON
+%token STRUCT CLASS UNION ENUM SIZEOF ALIGNOF UNSIGNED COLONCOLON
%token TEMPLATE
%token ERROR
%token NEW DELETE
/* Special type cases, put in to allow the parser to distinguish different
legal basetypes. */
%token SIGNED_KEYWORD LONG SHORT INT_KEYWORD CONST_KEYWORD VOLATILE_KEYWORD DOUBLE_KEYWORD
+%token RESTRICT ATOMIC
+%token FLOAT_KEYWORD COMPLEX
-%token <sval> VARIABLE
+%token <sval> DOLLAR_VARIABLE
%token <opcode> ASSIGN_MODIFY
{ write_exp_elt_opcode (pstate, UNOP_SIZEOF); }
;
-exp : exp ARROW name
+exp : ALIGNOF '(' type_exp ')' %prec UNARY
+ { write_exp_elt_opcode (pstate, UNOP_ALIGNOF); }
+ ;
+
+exp : exp ARROW field_name
{ write_exp_elt_opcode (pstate, STRUCTOP_PTR);
write_exp_string (pstate, $3);
write_exp_elt_opcode (pstate, STRUCTOP_PTR); }
;
-exp : exp ARROW name COMPLETE
- { mark_struct_expression (pstate);
+exp : exp ARROW field_name COMPLETE
+ { pstate->mark_struct_expression ();
write_exp_elt_opcode (pstate, STRUCTOP_PTR);
write_exp_string (pstate, $3);
write_exp_elt_opcode (pstate, STRUCTOP_PTR); }
exp : exp ARROW COMPLETE
{ struct stoken s;
- mark_struct_expression (pstate);
+ pstate->mark_struct_expression ();
write_exp_elt_opcode (pstate, STRUCTOP_PTR);
s.ptr = "";
s.length = 0;
;
exp : exp ARROW '~' name COMPLETE
- { mark_struct_expression (pstate);
+ { pstate->mark_struct_expression ();
write_exp_elt_opcode (pstate, STRUCTOP_PTR);
write_destructor_name (pstate, $4);
write_exp_elt_opcode (pstate, STRUCTOP_PTR); }
{ write_exp_elt_opcode (pstate, STRUCTOP_MPTR); }
;
-exp : exp '.' name
+exp : exp '.' field_name
{ write_exp_elt_opcode (pstate, STRUCTOP_STRUCT);
write_exp_string (pstate, $3);
write_exp_elt_opcode (pstate, STRUCTOP_STRUCT); }
;
-exp : exp '.' name COMPLETE
- { mark_struct_expression (pstate);
+exp : exp '.' field_name COMPLETE
+ { pstate->mark_struct_expression ();
write_exp_elt_opcode (pstate, STRUCTOP_STRUCT);
write_exp_string (pstate, $3);
write_exp_elt_opcode (pstate, STRUCTOP_STRUCT); }
exp : 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;
;
exp : exp '.' '~' name COMPLETE
- { mark_struct_expression (pstate);
+ { pstate->mark_struct_expression ();
write_exp_elt_opcode (pstate, STRUCTOP_STRUCT);
write_destructor_name (pstate, $4);
write_exp_elt_opcode (pstate, STRUCTOP_STRUCT); }
{
CORE_ADDR theclass;
- theclass = lookup_objc_class (parse_gdbarch (pstate),
- copy_name ($2.stoken));
+ std::string copy = copy_name ($2.stoken);
+ theclass = lookup_objc_class (pstate->gdbarch (),
+ copy.c_str ());
if (theclass == 0)
error (_("%s is not an ObjC Class"),
- copy_name ($2.stoken));
+ copy.c_str ());
write_exp_elt_opcode (pstate, OP_LONG);
write_exp_elt_type (pstate,
- parse_type (pstate)->builtin_int);
+ parse_type (pstate)->builtin_int);
write_exp_elt_longcst (pstate, (LONGEST) theclass);
write_exp_elt_opcode (pstate, OP_LONG);
start_msglist();
exp : exp '('
/* This is to save the value of arglist_len
being accumulated by an outer function call. */
- { 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); }
+ ;
+
+/* This is here to disambiguate with the production for
+ "func()::static_var" further below, which uses
+ function_method_void. */
+exp : exp '(' ')' %prec ARROW
+ { pstate->start_arglist ();
+ write_exp_elt_opcode (pstate, OP_FUNCALL);
+ write_exp_elt_longcst (pstate,
+ pstate->end_arglist ());
write_exp_elt_opcode (pstate, OP_FUNCALL); }
;
+
exp : UNKNOWN_CPP_NAME '('
{
/* This could potentially be a an argument defined
lookup function (Koenig). */
write_exp_elt_opcode (pstate, OP_ADL_FUNC);
- write_exp_elt_block (pstate,
- expression_context_block);
+ write_exp_elt_block
+ (pstate, pstate->expression_context_block);
write_exp_elt_sym (pstate,
NULL); /* Placeholder. */
write_exp_string (pstate, $1.stoken);
/* This is to save the value of arglist_len
being accumulated by an outer function call. */
- 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);
}
;
lcurly : '{'
- { start_arglist (); }
+ { pstate->start_arglist (); }
;
arglist :
;
arglist : exp
- { arglist_len = 1; }
+ { pstate->arglist_len = 1; }
;
arglist : arglist ',' exp %prec ABOVE_COMMA
- { arglist_len++; }
+ { pstate->arglist_len++; }
;
-exp : exp '(' parameter_typelist ')' const_or_volatile
- { int i;
- VEC (type_ptr) *type_list = $3;
- struct type *type_elt;
- LONGEST len = VEC_length (type_ptr, type_list);
+function_method: exp '(' parameter_typelist ')' const_or_volatile
+ {
+ std::vector<struct type *> *type_list = $3;
+ LONGEST len = type_list->size ();
write_exp_elt_opcode (pstate, TYPE_INSTANCE);
+ /* Save the const/volatile qualifiers as
+ recorded by the const_or_volatile
+ production's actions. */
+ write_exp_elt_longcst
+ (pstate,
+ (cpstate->type_stack
+ .follow_type_instance_flags ()));
write_exp_elt_longcst (pstate, len);
- for (i = 0;
- VEC_iterate (type_ptr, type_list, i, type_elt);
- ++i)
+ for (type *type_elt : *type_list)
write_exp_elt_type (pstate, type_elt);
write_exp_elt_longcst(pstate, len);
write_exp_elt_opcode (pstate, TYPE_INSTANCE);
- VEC_free (type_ptr, type_list);
+ }
+ ;
+
+function_method_void: exp '(' ')' const_or_volatile
+ { write_exp_elt_opcode (pstate, TYPE_INSTANCE);
+ /* See above. */
+ write_exp_elt_longcst
+ (pstate,
+ cpstate->type_stack.follow_type_instance_flags ());
+ 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 : '}'
- { $$ = end_arglist () - 1; }
+ { $$ = pstate->end_arglist () - 1; }
;
exp : lcurly arglist rcurly %prec ARROW
{ write_exp_elt_opcode (pstate, OP_ARRAY);
write_exp_elt_opcode (pstate, OP_LONG); }
;
+exp : COMPLEX_INT
+ {
+ write_exp_elt_opcode (pstate, OP_LONG);
+ write_exp_elt_type (pstate, TYPE_TARGET_TYPE ($1.type));
+ write_exp_elt_longcst (pstate, 0);
+ write_exp_elt_opcode (pstate, OP_LONG);
+ write_exp_elt_opcode (pstate, OP_LONG);
+ write_exp_elt_type (pstate, TYPE_TARGET_TYPE ($1.type));
+ write_exp_elt_longcst (pstate, (LONGEST) ($1.val));
+ write_exp_elt_opcode (pstate, OP_LONG);
+ write_exp_elt_opcode (pstate, OP_COMPLEX);
+ write_exp_elt_type (pstate, $1.type);
+ write_exp_elt_opcode (pstate, OP_COMPLEX);
+ }
+ ;
+
exp : CHAR
{
struct stoken_vector vec;
exp : FLOAT
- { write_exp_elt_opcode (pstate, OP_DOUBLE);
+ { write_exp_elt_opcode (pstate, OP_FLOAT);
write_exp_elt_type (pstate, $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 : DECFLOAT
- { write_exp_elt_opcode (pstate, OP_DECFLOAT);
+exp : COMPLEX_FLOAT
+ {
+ struct type *underlying
+ = TYPE_TARGET_TYPE ($1.type);
+
+ write_exp_elt_opcode (pstate, OP_FLOAT);
+ write_exp_elt_type (pstate, underlying);
+ gdb_byte val[16];
+ target_float_from_host_double (val, underlying, 0);
+ write_exp_elt_floatcst (pstate, val);
+ write_exp_elt_opcode (pstate, OP_FLOAT);
+ write_exp_elt_opcode (pstate, OP_FLOAT);
+ write_exp_elt_type (pstate, underlying);
+ write_exp_elt_floatcst (pstate, $1.val);
+ write_exp_elt_opcode (pstate, OP_FLOAT);
+ write_exp_elt_opcode (pstate, OP_COMPLEX);
write_exp_elt_type (pstate, $1.type);
- write_exp_elt_decfloatcst (pstate, $1.val);
- write_exp_elt_opcode (pstate, OP_DECFLOAT); }
+ write_exp_elt_opcode (pstate, OP_COMPLEX);
+ }
;
exp : variable
;
-exp : VARIABLE
+exp : DOLLAR_VARIABLE
{
write_dollar_variable (pstate, $1);
}
{ struct type *type = $3;
write_exp_elt_opcode (pstate, OP_LONG);
write_exp_elt_type (pstate, lookup_signed_typename
- (parse_language (pstate),
- parse_gdbarch (pstate),
+ (pstate->language (),
"int"));
type = check_typedef (type);
$$ = SYMBOL_BLOCK_VALUE ($1.sym.symbol);
else
error (_("No file or function \"%s\"."),
- copy_name ($1.stoken));
+ copy_name ($1.stoken).c_str ());
}
| FILENAME
{
;
block : block COLONCOLON name
- { struct symbol *tem
- = lookup_symbol (copy_name ($3), $1,
+ {
+ std::string copy = copy_name ($3);
+ struct symbol *tem
+ = lookup_symbol (copy.c_str (), $1,
VAR_DOMAIN, NULL).symbol;
if (!tem || SYMBOL_CLASS (tem) != LOC_BLOCK)
error (_("No function \"%s\" in specified context."),
- copy_name ($3));
+ copy.c_str ());
$$ = SYMBOL_BLOCK_VALUE (tem); }
;
|| !symbol_read_needs_frame (sym))
error (_("@entry can be used only for function "
"parameters, not for \"%s\""),
- copy_name ($1.stoken));
+ copy_name ($1.stoken).c_str ());
write_exp_elt_opcode (pstate, OP_VAR_ENTRY_VALUE);
write_exp_elt_sym (pstate, sym);
;
variable: block COLONCOLON name
- { struct block_symbol sym
- = lookup_symbol (copy_name ($3), $1,
+ {
+ std::string copy = copy_name ($3);
+ struct block_symbol sym
+ = lookup_symbol (copy.c_str (), $1,
VAR_DOMAIN, NULL);
if (sym.symbol == 0)
error (_("No symbol \"%s\" in specified context."),
- copy_name ($3));
+ copy.c_str ());
if (symbol_read_needs_frame (sym.symbol))
- {
- if (innermost_block == 0
- || contained_in (sym.block,
- innermost_block))
- innermost_block = sym.block;
- }
+ pstate->block_tracker->update (sym);
write_exp_elt_opcode (pstate, OP_VAR_VALUE);
write_exp_elt_block (pstate, sym.block);
}
| TYPENAME COLONCOLON name COLONCOLON name
{
- char *copy = copy_name ($3);
+ std::string copy = copy_name ($3);
error (_("No type \"%s\" within class "
"or namespace \"%s\"."),
- copy, TYPE_SAFE_NAME ($1.type));
+ copy.c_str (), TYPE_SAFE_NAME ($1.type));
}
;
variable: qualified_name
| COLONCOLON name_not_typename
{
- char *name = copy_name ($2.stoken);
+ std::string name = copy_name ($2.stoken);
struct symbol *sym;
struct bound_minimal_symbol msymbol;
sym
- = lookup_symbol (name, (const struct block *) NULL,
+ = lookup_symbol (name.c_str (),
+ (const struct block *) NULL,
VAR_DOMAIN, NULL).symbol;
if (sym)
{
break;
}
- msymbol = lookup_bound_minimal_symbol (name);
+ msymbol = lookup_bound_minimal_symbol (name.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."), name);
+ error (_("No symbol \"%s\" in current context."),
+ name.c_str ());
}
;
if (sym.symbol)
{
if (symbol_read_needs_frame (sym.symbol))
+ pstate->block_tracker->update (sym);
+
+ /* If we found a function, see if it's
+ an ifunc resolver that has the same
+ address as the ifunc symbol itself.
+ If so, prefer the ifunc symbol. */
+
+ bound_minimal_symbol resolver
+ = find_gnu_ifunc (sym.symbol);
+ if (resolver.minsym != NULL)
+ write_exp_msymbol (pstate, resolver);
+ else
{
- if (innermost_block == 0
- || contained_in (sym.block,
- innermost_block))
- innermost_block = sym.block;
+ write_exp_elt_opcode (pstate, OP_VAR_VALUE);
+ write_exp_elt_block (pstate, sym.block);
+ write_exp_elt_sym (pstate, sym.symbol);
+ write_exp_elt_opcode (pstate, OP_VAR_VALUE);
}
-
- write_exp_elt_opcode (pstate, OP_VAR_VALUE);
- 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)
{
/* C++: it hangs off of `this'. Must
not inadvertently convert from a method call
to data ref. */
- if (innermost_block == 0
- || contained_in (sym.block,
- innermost_block))
- innermost_block = sym.block;
+ 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);
}
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);
- 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.c_str ());
+ 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."),
+ arg.c_str ());
+ }
+
+ /* 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
+ = ((msymbol.minsym->type != mst_text_gnu_ifunc
+ && msymbol.minsym->type != mst_data_gnu_ifunc)
+ ? find_function_alias_target (msymbol)
+ : NULL);
+ 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);
}
}
;
-space_identifier : '@' NAME
- { insert_type_address_space (pstate, copy_name ($2.stoken)); }
- ;
-
const_or_volatile: const_or_volatile_noopt
|
;
-cv_with_space_id : const_or_volatile space_identifier const_or_volatile
+single_qualifier:
+ CONST_KEYWORD
+ { cpstate->type_stack.insert (tp_const); }
+ | VOLATILE_KEYWORD
+ { cpstate->type_stack.insert (tp_volatile); }
+ | ATOMIC
+ { cpstate->type_stack.insert (tp_atomic); }
+ | RESTRICT
+ { cpstate->type_stack.insert (tp_restrict); }
+ | '@' NAME
+ {
+ cpstate->type_stack.insert (pstate,
+ copy_name ($2.stoken).c_str ());
+ }
;
-const_or_volatile_or_space_identifier_noopt: cv_with_space_id
- | const_or_volatile_noopt
+qualifier_seq_noopt:
+ single_qualifier
+ | qualifier_seq single_qualifier
;
-const_or_volatile_or_space_identifier:
- const_or_volatile_or_space_identifier_noopt
+qualifier_seq:
+ qualifier_seq_noopt
|
;
ptr_operator:
ptr_operator '*'
- { insert_type (tp_pointer); }
- const_or_volatile_or_space_identifier
+ { cpstate->type_stack.insert (tp_pointer); }
+ qualifier_seq
| '*'
- { insert_type (tp_pointer); }
- const_or_volatile_or_space_identifier
+ { cpstate->type_stack.insert (tp_pointer); }
+ qualifier_seq
| '&'
- { insert_type (tp_reference); }
+ { cpstate->type_stack.insert (tp_reference); }
| '&' ptr_operator
- { insert_type (tp_reference); }
+ { cpstate->type_stack.insert (tp_reference); }
| ANDAND
- { insert_type (tp_rvalue_reference); }
+ { cpstate->type_stack.insert (tp_rvalue_reference); }
| ANDAND ptr_operator
- { insert_type (tp_rvalue_reference); }
+ { cpstate->type_stack.insert (tp_rvalue_reference); }
;
ptr_operator_ts: ptr_operator
{
- $$ = get_type_stack ();
- /* This cleanup is eventually run by
- c_parse. */
- make_cleanup (type_stack_cleanup, $$);
+ $$ = cpstate->type_stack.create ();
+ cpstate->type_stacks.emplace_back ($$);
}
;
abs_decl: ptr_operator_ts direct_abs_decl
- { $$ = append_type_stack ($2, $1); }
+ { $$ = $2->append ($1); }
| ptr_operator_ts
| direct_abs_decl
;
{ $$ = $2; }
| direct_abs_decl array_mod
{
- push_type_stack ($1);
- push_type_int ($2);
- push_type (tp_array);
- $$ = get_type_stack ();
+ cpstate->type_stack.push ($1);
+ cpstate->type_stack.push ($2);
+ cpstate->type_stack.push (tp_array);
+ $$ = cpstate->type_stack.create ();
+ cpstate->type_stacks.emplace_back ($$);
}
| array_mod
{
- push_type_int ($1);
- push_type (tp_array);
- $$ = get_type_stack ();
+ cpstate->type_stack.push ($1);
+ cpstate->type_stack.push (tp_array);
+ $$ = cpstate->type_stack.create ();
+ cpstate->type_stacks.emplace_back ($$);
}
| direct_abs_decl func_mod
{
- push_type_stack ($1);
- push_typelist ($2);
- $$ = get_type_stack ();
+ cpstate->type_stack.push ($1);
+ cpstate->type_stack.push ($2);
+ $$ = cpstate->type_stack.create ();
+ cpstate->type_stacks.emplace_back ($$);
}
| func_mod
{
- push_typelist ($1);
- $$ = get_type_stack ();
+ cpstate->type_stack.push ($1);
+ $$ = cpstate->type_stack.create ();
+ cpstate->type_stacks.emplace_back ($$);
}
;
;
func_mod: '(' ')'
- { $$ = NULL; }
+ {
+ $$ = new std::vector<struct type *>;
+ cpstate->type_lists.emplace_back ($$);
+ }
| '(' parameter_typelist ')'
{ $$ = $2; }
;
type : ptype
;
-typebase /* Implements (approximately): (type-qualifier)* type-specifier */
- : TYPENAME
- { $$ = $1.type; }
- | INT_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+/* A helper production that recognizes scalar types that can validly
+ be used with _Complex. */
+
+scalar_type:
+ INT_KEYWORD
+ { $$ = lookup_signed_typename (pstate->language (),
"int"); }
| LONG
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"long"); }
| SHORT
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"short"); }
| LONG INT_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"long"); }
| LONG SIGNED_KEYWORD INT_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"long"); }
| LONG SIGNED_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"long"); }
| SIGNED_KEYWORD LONG INT_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"long"); }
| UNSIGNED LONG INT_KEYWORD
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_unsigned_typename (pstate->language (),
"long"); }
| LONG UNSIGNED INT_KEYWORD
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_unsigned_typename (pstate->language (),
"long"); }
| LONG UNSIGNED
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_unsigned_typename (pstate->language (),
"long"); }
| LONG LONG
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"long long"); }
| LONG LONG INT_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"long long"); }
| LONG LONG SIGNED_KEYWORD INT_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"long long"); }
| LONG LONG SIGNED_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"long long"); }
| SIGNED_KEYWORD LONG LONG
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"long long"); }
| SIGNED_KEYWORD LONG LONG INT_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"long long"); }
| UNSIGNED LONG LONG
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_unsigned_typename (pstate->language (),
"long long"); }
| UNSIGNED LONG LONG INT_KEYWORD
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_unsigned_typename (pstate->language (),
"long long"); }
| LONG LONG UNSIGNED
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_unsigned_typename (pstate->language (),
"long long"); }
| LONG LONG UNSIGNED INT_KEYWORD
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_unsigned_typename (pstate->language (),
"long long"); }
| SHORT INT_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"short"); }
| SHORT SIGNED_KEYWORD INT_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"short"); }
| SHORT SIGNED_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_signed_typename (pstate->language (),
"short"); }
| UNSIGNED SHORT INT_KEYWORD
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_unsigned_typename (pstate->language (),
"short"); }
| SHORT UNSIGNED
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_unsigned_typename (pstate->language (),
"short"); }
| SHORT UNSIGNED INT_KEYWORD
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_unsigned_typename (pstate->language (),
"short"); }
| DOUBLE_KEYWORD
- { $$ = lookup_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_typename (pstate->language (),
"double",
- (struct block *) NULL,
+ NULL,
+ 0); }
+ | FLOAT_KEYWORD
+ { $$ = lookup_typename (pstate->language (),
+ "float",
+ NULL,
0); }
| LONG DOUBLE_KEYWORD
- { $$ = lookup_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ { $$ = lookup_typename (pstate->language (),
"long double",
- (struct block *) NULL,
+ NULL,
0); }
+ | UNSIGNED type_name
+ { $$ = lookup_unsigned_typename (pstate->language (),
+ $2.type->name ()); }
+ | UNSIGNED
+ { $$ = lookup_unsigned_typename (pstate->language (),
+ "int"); }
+ | SIGNED_KEYWORD type_name
+ { $$ = lookup_signed_typename (pstate->language (),
+ $2.type->name ()); }
+ | SIGNED_KEYWORD
+ { $$ = lookup_signed_typename (pstate->language (),
+ "int"); }
+ ;
+
+/* Implements (approximately): (type-qualifier)* type-specifier.
+
+ When type-specifier is only ever a single word, like 'float' then these
+ arrive as pre-built TYPENAME tokens thanks to the classify_name
+ function. However, when a type-specifier can contain multiple words,
+ for example 'double' can appear as just 'double' or 'long double', and
+ similarly 'long' can appear as just 'long' or in 'long double', then
+ these type-specifiers are parsed into their own tokens in the function
+ lex_one_token and the ident_tokens array. These separate tokens are all
+ recognised here. */
+typebase
+ : TYPENAME
+ { $$ = $1.type; }
+ | scalar_type
+ { $$ = $1; }
+ | COMPLEX scalar_type
+ {
+ $$ = init_complex_type (nullptr, $2);
+ }
| STRUCT name
- { $$ = lookup_struct (copy_name ($2),
- expression_context_block); }
+ { $$
+ = lookup_struct (copy_name ($2).c_str (),
+ pstate->expression_context_block);
+ }
| STRUCT COMPLETE
{
- mark_completion_tag (TYPE_CODE_STRUCT, "", 0);
+ pstate->mark_completion_tag (TYPE_CODE_STRUCT,
+ "", 0);
$$ = NULL;
}
| STRUCT name COMPLETE
{
- mark_completion_tag (TYPE_CODE_STRUCT, $2.ptr,
- $2.length);
+ pstate->mark_completion_tag (TYPE_CODE_STRUCT,
+ $2.ptr, $2.length);
$$ = NULL;
}
| CLASS name
- { $$ = lookup_struct (copy_name ($2),
- expression_context_block); }
+ { $$ = lookup_struct
+ (copy_name ($2).c_str (),
+ pstate->expression_context_block);
+ }
| CLASS COMPLETE
{
- mark_completion_tag (TYPE_CODE_STRUCT, "", 0);
+ pstate->mark_completion_tag (TYPE_CODE_STRUCT,
+ "", 0);
$$ = NULL;
}
| CLASS name COMPLETE
{
- mark_completion_tag (TYPE_CODE_STRUCT, $2.ptr,
- $2.length);
+ pstate->mark_completion_tag (TYPE_CODE_STRUCT,
+ $2.ptr, $2.length);
$$ = NULL;
}
| UNION name
- { $$ = lookup_union (copy_name ($2),
- expression_context_block); }
+ { $$
+ = lookup_union (copy_name ($2).c_str (),
+ pstate->expression_context_block);
+ }
| UNION COMPLETE
{
- mark_completion_tag (TYPE_CODE_UNION, "", 0);
+ pstate->mark_completion_tag (TYPE_CODE_UNION,
+ "", 0);
$$ = NULL;
}
| UNION name COMPLETE
{
- mark_completion_tag (TYPE_CODE_UNION, $2.ptr,
- $2.length);
+ pstate->mark_completion_tag (TYPE_CODE_UNION,
+ $2.ptr, $2.length);
$$ = NULL;
}
| ENUM name
- { $$ = lookup_enum (copy_name ($2),
- expression_context_block); }
+ { $$ = lookup_enum (copy_name ($2).c_str (),
+ pstate->expression_context_block);
+ }
| ENUM COMPLETE
{
- mark_completion_tag (TYPE_CODE_ENUM, "", 0);
+ pstate->mark_completion_tag (TYPE_CODE_ENUM, "", 0);
$$ = NULL;
}
| ENUM name COMPLETE
{
- mark_completion_tag (TYPE_CODE_ENUM, $2.ptr,
- $2.length);
+ pstate->mark_completion_tag (TYPE_CODE_ENUM, $2.ptr,
+ $2.length);
$$ = NULL;
}
- | UNSIGNED type_name
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
- TYPE_NAME($2.type)); }
- | UNSIGNED
- { $$ = lookup_unsigned_typename (parse_language (pstate),
- parse_gdbarch (pstate),
- "int"); }
- | SIGNED_KEYWORD type_name
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
- TYPE_NAME($2.type)); }
- | SIGNED_KEYWORD
- { $$ = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
- "int"); }
/* It appears that this rule for templates is never
reduced; template recognition happens by lookahead
in the token processing code in yylex. */
| TEMPLATE name '<' type '>'
- { $$ = lookup_template_type(copy_name($2), $4,
- expression_context_block);
+ { $$ = lookup_template_type
+ (copy_name($2).c_str (), $4,
+ pstate->expression_context_block);
}
- | const_or_volatile_or_space_identifier_noopt typebase
- { $$ = follow_types ($2); }
- | typebase const_or_volatile_or_space_identifier_noopt
- { $$ = follow_types ($1); }
+ | qualifier_seq_noopt typebase
+ { $$ = cpstate->type_stack.follow_types ($2); }
+ | typebase qualifier_seq_noopt
+ { $$ = cpstate->type_stack.follow_types ($1); }
;
type_name: TYPENAME
{
$$.stoken.ptr = "int";
$$.stoken.length = 3;
- $$.type = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ $$.type = lookup_signed_typename (pstate->language (),
"int");
}
| LONG
{
$$.stoken.ptr = "long";
$$.stoken.length = 4;
- $$.type = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ $$.type = lookup_signed_typename (pstate->language (),
"long");
}
| SHORT
{
$$.stoken.ptr = "short";
$$.stoken.length = 5;
- $$.type = lookup_signed_typename (parse_language (pstate),
- parse_gdbarch (pstate),
+ $$.type = lookup_signed_typename (pstate->language (),
"short");
}
;
{ check_parameter_typelist ($1); }
| nonempty_typelist ',' DOTDOTDOT
{
- VEC_safe_push (type_ptr, $1, NULL);
+ $1->push_back (NULL);
check_parameter_typelist ($1);
$$ = $1;
}
nonempty_typelist
: type
{
- VEC (type_ptr) *typelist = NULL;
- VEC_safe_push (type_ptr, typelist, $1);
+ std::vector<struct type *> *typelist
+ = new std::vector<struct type *>;
+ cpstate->type_lists.emplace_back (typelist);
+
+ typelist->push_back ($1);
$$ = typelist;
}
| nonempty_typelist ',' type
{
- VEC_safe_push (type_ptr, $1, $3);
+ $1->push_back ($3);
$$ = $1;
}
;
ptype : typebase
| ptype abs_decl
{
- push_type_stack ($2);
- $$ = follow_types ($1);
+ cpstate->type_stack.push ($2);
+ $$ = cpstate->type_stack.follow_types ($1);
}
;
conversion_type_id: typebase conversion_declarator
- { $$ = follow_types ($1); }
+ { $$ = cpstate->type_stack.follow_types ($1); }
;
conversion_declarator: /* Nothing. */
;
const_or_volatile_noopt: const_and_volatile
- { insert_type (tp_const);
- insert_type (tp_volatile);
+ { cpstate->type_stack.insert (tp_const);
+ cpstate->type_stack.insert (tp_volatile);
}
| CONST_KEYWORD
- { insert_type (tp_const); }
+ { cpstate->type_stack.insert (tp_const); }
| VOLATILE_KEYWORD
- { insert_type (tp_volatile); }
+ { cpstate->type_stack.insert (tp_volatile); }
;
oper: OPERATOR NEW
| OPERATOR '>'
{ $$ = operator_stoken (">"); }
| OPERATOR ASSIGN_MODIFY
- { const char *op = "unknown";
+ { const char *op = " unknown";
switch ($2)
{
case BINOP_RSH:
c_print_type ($2, NULL, &buf, -1, 0,
&type_print_raw_options);
- $$ = operator_stoken (buf.c_str ());
+ std::string name = std::move (buf.string ());
+
+ /* This also needs canonicalization. */
+ gdb::unique_xmalloc_ptr<char> canon
+ = cp_canonicalize_string (name.c_str ());
+ if (canon != nullptr)
+ name = canon.get ();
+ $$ = operator_stoken ((" " + name).c_str ());
}
;
-
+/* This rule exists in order to allow some tokens that would not normally
+ match the 'name' rule to appear as fields within a struct. The example
+ that initially motivated this was the RISC-V target which models the
+ floating point registers as a union with fields called 'float' and
+ 'double'. */
+field_name
+ : name
+ | DOUBLE_KEYWORD { $$ = typename_stoken ("double"); }
+ | FLOAT_KEYWORD { $$ = typename_stoken ("float"); }
+ | INT_KEYWORD { $$ = typename_stoken ("int"); }
+ | LONG { $$ = typename_stoken ("long"); }
+ | SHORT { $$ = typename_stoken ("short"); }
+ | SIGNED_KEYWORD { $$ = typename_stoken ("signed"); }
+ | UNSIGNED { $$ = typename_stoken ("unsigned"); }
+ ;
name : NAME { $$ = $1.stoken; }
| BLOCKNAME { $$ = $1.stoken; }
struct field_of_this_result is_a_field_of_this;
$$.stoken = $1;
- $$.sym = lookup_symbol ($1.ptr,
- expression_context_block,
- VAR_DOMAIN,
- &is_a_field_of_this);
+ $$.sym
+ = lookup_symbol ($1.ptr,
+ pstate->expression_context_block,
+ VAR_DOMAIN,
+ &is_a_field_of_this);
$$.is_a_field_of_this
= is_a_field_of_this.type != NULL;
}
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);
+ st.length = CP_OPERATOR_LEN + strlen (op);
buf = (char *) malloc (st.length + 1);
- strcpy (buf, operator_string);
+ strcpy (buf, CP_OPERATOR_STR);
strcat (buf, op);
st.ptr = buf;
/* The toplevel (c_parse) will free the memory allocated here. */
- make_cleanup (free, buf);
+ cpstate->strings.emplace_back (buf);
+ return st;
+};
+
+/* Returns a stoken of the type named TYPE. */
+
+static struct stoken
+typename_stoken (const char *type)
+{
+ struct stoken st = { type, 0 };
+ st.length = strlen (type);
return st;
};
static int
type_aggregate_p (struct type *type)
{
- return (TYPE_CODE (type) == TYPE_CODE_STRUCT
- || TYPE_CODE (type) == TYPE_CODE_UNION
- || TYPE_CODE (type) == TYPE_CODE_NAMESPACE
- || (TYPE_CODE (type) == TYPE_CODE_ENUM
+ return (type->code () == TYPE_CODE_STRUCT
+ || type->code () == TYPE_CODE_UNION
+ || type->code () == TYPE_CODE_NAMESPACE
+ || (type->code () == TYPE_CODE_ENUM
&& TYPE_DECLARED_CLASS (type)));
}
/* Validate a parameter typelist. */
static void
-check_parameter_typelist (VEC (type_ptr) *params)
+check_parameter_typelist (std::vector<struct type *> *params)
{
struct type *type;
int ix;
- for (ix = 0; VEC_iterate (type_ptr, params, ix, type); ++ix)
+ for (ix = 0; ix < params->size (); ++ix)
{
- if (type != NULL && TYPE_CODE (check_typedef (type)) == TYPE_CODE_VOID)
+ type = (*params)[ix];
+ if (type != NULL && check_typedef (type)->code () == TYPE_CODE_VOID)
{
if (ix == 0)
{
- if (VEC_length (type_ptr, params) == 1)
+ if (params->size () == 1)
{
/* Ok. */
break;
}
- VEC_free (type_ptr, params);
error (_("parameter types following 'void'"));
}
else
- {
- VEC_free (type_ptr, params);
- error (_("'void' invalid as parameter type"));
- }
+ error (_("'void' invalid as parameter type"));
}
}
}
parse_number (struct parser_state *par_state,
const char *buf, int len, int parsed_float, YYSTYPE *putithere)
{
- /* FIXME: Shouldn't these be unsigned? We don't deal with negative values
- here, and we do kind of silly things like cast to unsigned. */
- LONGEST n = 0;
- LONGEST prevn = 0;
+ ULONGEST n = 0;
+ ULONGEST prevn = 0;
ULONGEST un;
int i = 0;
/* Number of "L" suffixes encountered. */
int long_p = 0;
- /* We have found a "L" or "U" suffix. */
+ /* Imaginary number. */
+ bool imaginary_p = false;
+
+ /* We have found a "L" or "U" (or "i") suffix. */
int found_suffix = 0;
ULONGEST high_bit;
if (parsed_float)
{
- /* If it ends at "df", "dd" or "dl", take it as type of decimal floating
- point. Return DECFLOAT. */
+ if (len >= 1 && p[len - 1] == 'i')
+ {
+ imaginary_p = true;
+ --len;
+ }
+ /* Handle suffixes for decimal floating-point: "df", "dd" or "dl". */
if (len >= 2 && p[len - 2] == 'd' && p[len - 1] == 'f')
{
- p[len - 2] = '\0';
- putithere->typed_val_decfloat.type
+ putithere->typed_val_float.type
= parse_type (par_state)->builtin_decfloat;
- decimal_from_string (putithere->typed_val_decfloat.val, 4,
- gdbarch_byte_order (parse_gdbarch (par_state)),
- p);
- p[len - 2] = 'd';
- return DECFLOAT;
+ len -= 2;
}
-
- if (len >= 2 && p[len - 2] == 'd' && p[len - 1] == 'd')
+ else if (len >= 2 && p[len - 2] == 'd' && p[len - 1] == 'd')
{
- p[len - 2] = '\0';
- putithere->typed_val_decfloat.type
+ putithere->typed_val_float.type
= parse_type (par_state)->builtin_decdouble;
- decimal_from_string (putithere->typed_val_decfloat.val, 8,
- gdbarch_byte_order (parse_gdbarch (par_state)),
- p);
- p[len - 2] = 'd';
- return DECFLOAT;
+ len -= 2;
}
-
- if (len >= 2 && p[len - 2] == 'd' && p[len - 1] == 'l')
+ else if (len >= 2 && p[len - 2] == 'd' && p[len - 1] == 'l')
{
- p[len - 2] = '\0';
- putithere->typed_val_decfloat.type
+ putithere->typed_val_float.type
= parse_type (par_state)->builtin_declong;
- decimal_from_string (putithere->typed_val_decfloat.val, 16,
- gdbarch_byte_order (parse_gdbarch (par_state)),
- p);
- p[len - 2] = 'd';
- return DECFLOAT;
+ len -= 2;
}
+ /* Handle suffixes: 'f' for float, 'l' for long double. */
+ else if (len >= 1 && TOLOWER (p[len - 1]) == 'f')
+ {
+ putithere->typed_val_float.type
+ = parse_type (par_state)->builtin_float;
+ len -= 1;
+ }
+ else if (len >= 1 && TOLOWER (p[len - 1]) == 'l')
+ {
+ putithere->typed_val_float.type
+ = parse_type (par_state)->builtin_long_double;
+ len -= 1;
+ }
+ /* 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;
- if (! parse_c_float (parse_gdbarch (par_state), p, len,
- &putithere->typed_val_float.dval,
- &putithere->typed_val_float.type))
- return ERROR;
- return FLOAT;
+ if (imaginary_p)
+ putithere->typed_val_float.type
+ = init_complex_type (nullptr, putithere->typed_val_float.type);
+
+ return imaginary_p ? COMPLEX_FLOAT : FLOAT;
}
/* Handle base-switching prefixes 0x, 0t, 0d, 0 */
c = *p++;
if (c >= 'A' && c <= 'Z')
c += 'a' - 'A';
- if (c != 'l' && c != 'u')
+ if (c != 'l' && c != 'u' && c != 'i')
n *= base;
if (c >= '0' && c <= '9')
{
unsigned_p = 1;
found_suffix = 1;
}
+ else if (c == 'i')
+ {
+ imaginary_p = true;
+ found_suffix = 1;
+ }
else
return ERROR; /* Char not a digit */
}
/* Portably test for overflow (only works for nonzero values, so make
a second check for zero). FIXME: Can't we just make n and prevn
unsigned and avoid this? */
- if (c != 'l' && c != 'u' && (prevn >= n) && n != 0)
+ if (c != 'l' && c != 'u' && c != 'i' && (prevn >= n) && n != 0)
unsigned_p = 1; /* Try something unsigned */
/* Portably test for unsigned overflow.
FIXME: This check is wrong; for example it doesn't find overflow
on 0x123456789 when LONGEST is 32 bits. */
- if (c != 'l' && c != 'u' && n != 0)
+ if (c != 'l' && c != 'u' && c != 'i' && n != 0)
{
- if ((unsigned_p && (ULONGEST) prevn >= (ULONGEST) n))
+ if (unsigned_p && prevn >= n)
error (_("Numeric constant too large."));
}
prevn = n;
the case where it is we just always shift the value more than
once, with fewer bits each time. */
- un = (ULONGEST)n >> 2;
+ un = 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;
putithere->typed_val_int.type = signed_type;
}
- return INT;
+ if (imaginary_p)
+ putithere->typed_val_int.type
+ = init_complex_type (nullptr, putithere->typed_val_int.type);
+
+ return imaginary_p ? COMPLEX_INT : INT;
}
/* Temporary obstack used for holding strings. */
if (output)
obstack_grow_str (output, "\\x");
++tokptr;
- if (!isxdigit (*tokptr))
+ if (!ISXDIGIT (*tokptr))
error (_("\\x escape without a following hex digit"));
- while (isxdigit (*tokptr))
+ while (ISXDIGIT (*tokptr))
{
if (output)
obstack_1grow (output, *tokptr);
if (output)
obstack_grow_str (output, "\\");
for (i = 0;
- i < 3 && isdigit (*tokptr) && *tokptr != '8' && *tokptr != '9';
+ i < 3 && ISDIGIT (*tokptr) && *tokptr != '8' && *tokptr != '9';
++i)
{
if (output)
obstack_1grow (output, *tokptr);
}
++tokptr;
- if (!isxdigit (*tokptr))
+ if (!ISXDIGIT (*tokptr))
error (_("\\%c escape without a following hex digit"), c);
- for (i = 0; i < len && isxdigit (*tokptr); ++i)
+ for (i = 0; i < len && ISXDIGIT (*tokptr); ++i)
{
if (output)
obstack_1grow (output, *tokptr);
FLAG_CXX = 1,
+ /* If this bit is set, the token is C-only. */
+
+ FLAG_C = 2,
+
/* If this bit is set, the token is conditional: if there is a
symbol of the same name, then the token is a symbol; otherwise,
the token is a keyword. */
- FLAG_SHADOW = 2
+ FLAG_SHADOW = 4
};
DEF_ENUM_FLAGS_TYPE (enum token_flag, token_flags);
{".*", DOT_STAR, BINOP_END, FLAG_CXX}
};
-/* Identifier-like tokens. */
+/* Identifier-like tokens. Only type-specifiers than can appear in
+ multi-word type names (for example 'double' can appear in 'long
+ double') need to be listed here. type-specifiers that are only ever
+ single word (like 'char') are handled by the classify_name function. */
static const struct token ident_tokens[] =
{
{"unsigned", UNSIGNED, OP_NULL, 0},
{"struct", STRUCT, OP_NULL, 0},
{"signed", SIGNED_KEYWORD, OP_NULL, 0},
{"sizeof", SIZEOF, OP_NULL, 0},
+ {"_Alignof", ALIGNOF, OP_NULL, 0},
+ {"alignof", ALIGNOF, OP_NULL, FLAG_CXX},
{"double", DOUBLE_KEYWORD, OP_NULL, 0},
+ {"float", FLOAT_KEYWORD, OP_NULL, 0},
{"false", FALSEKEYWORD, OP_NULL, FLAG_CXX},
{"class", CLASS, OP_NULL, FLAG_CXX},
{"union", UNION, OP_NULL, 0},
{"short", SHORT, OP_NULL, 0},
{"const", CONST_KEYWORD, OP_NULL, 0},
+ {"restrict", RESTRICT, OP_NULL, FLAG_C | FLAG_SHADOW},
+ {"__restrict__", RESTRICT, OP_NULL, 0},
+ {"__restrict", RESTRICT, OP_NULL, 0},
+ {"_Atomic", ATOMIC, OP_NULL, 0},
{"enum", ENUM, OP_NULL, 0},
{"long", LONG, OP_NULL, 0},
+ {"_Complex", COMPLEX, OP_NULL, 0},
+ {"__complex__", COMPLEX, OP_NULL, 0},
+
{"true", TRUEKEYWORD, OP_NULL, FLAG_CXX},
{"int", INT_KEYWORD, OP_NULL, 0},
{"new", NEW, OP_NULL, FLAG_CXX},
{"typeid", TYPEID, OP_TYPEID, FLAG_CXX}
};
-/* When we find that lexptr (the global var defined in parse.c) is
- pointing at a macro invocation, we expand the invocation, and call
- scan_macro_expansion to save the old lexptr here and point lexptr
- into the expanded text. When we reach the end of that, we call
- end_macro_expansion to pop back to the value we saved here. The
- macro expansion code promises to return only fully-expanded text,
- so we don't need to "push" more than one level.
-
- This is disgusting, of course. It would be cleaner to do all macro
- expansion beforehand, and then hand that to lexptr. But we don't
- really know where the expression ends. Remember, in a command like
-
- (gdb) break *ADDRESS if CONDITION
-
- we evaluate ADDRESS in the scope of the current frame, but we
- evaluate CONDITION in the scope of the breakpoint's location. So
- it's simply wrong to try to macro-expand the whole thing at once. */
-static const char *macro_original_text;
-
-/* We save all intermediate macro expansions on this obstack for the
- duration of a single parse. The expansion text may sometimes have
- to live past the end of the expansion, due to yacc lookahead.
- Rather than try to be clever about saving the data for a single
- token, we simply keep it all and delete it after parsing has
- completed. */
-static struct obstack expansion_obstack;
static void
scan_macro_expansion (char *expansion)
{
- char *copy;
+ const char *copy;
/* We'd better not be trying to push the stack twice. */
- gdb_assert (! macro_original_text);
+ gdb_assert (! cpstate->macro_original_text);
/* Copy to the obstack, and then free the intermediate
expansion. */
- copy = (char *) obstack_copy0 (&expansion_obstack, expansion,
- strlen (expansion));
+ copy = obstack_strdup (&cpstate->expansion_obstack, expansion);
xfree (expansion);
/* Save the old lexptr value, so we can return to it when we're done
parsing the expanded text. */
- macro_original_text = lexptr;
- lexptr = copy;
+ cpstate->macro_original_text = pstate->lexptr;
+ pstate->lexptr = copy;
}
static int
scanning_macro_expansion (void)
{
- return macro_original_text != 0;
+ return cpstate->macro_original_text != 0;
}
static void
finished_macro_expansion (void)
{
/* There'd better be something to pop back to. */
- gdb_assert (macro_original_text);
+ gdb_assert (cpstate->macro_original_text);
/* Pop back to the original text. */
- lexptr = macro_original_text;
- macro_original_text = 0;
-}
-
-static void
-scan_macro_cleanup (void *dummy)
-{
- if (macro_original_text)
- finished_macro_expansion ();
-
- obstack_free (&expansion_obstack, NULL);
+ pstate->lexptr = cpstate->macro_original_text;
+ cpstate->macro_original_text = 0;
}
/* Return true iff the token represents a C++ cast operator. */
static int saw_name_at_eof;
/* This is set if the previously-returned token was a structure
- operator -- either '.' or ARROW. This is used only when parsing to
- do field name completion. */
-static int last_was_structop;
+ operator -- either '.' or ARROW. */
+static bool last_was_structop;
+
+/* Depth of parentheses. */
+static int paren_depth;
/* Read one token, getting characters through lexptr. */
static int
-lex_one_token (struct parser_state *par_state, int *is_quoted_name)
+lex_one_token (struct parser_state *par_state, bool *is_quoted_name)
{
int c;
int namelen;
unsigned int i;
const char *tokstart;
- int saw_structop = last_was_structop;
- char *copy;
+ bool saw_structop = last_was_structop;
- last_was_structop = 0;
- *is_quoted_name = 0;
+ last_was_structop = false;
+ *is_quoted_name = false;
retry:
/* Check if this is a macro invocation that we need to expand. */
if (! scanning_macro_expansion ())
{
- char *expanded = macro_expand_next (&lexptr,
+ char *expanded = macro_expand_next (&pstate->lexptr,
standard_macro_lookup,
expression_macro_scope);
scan_macro_expansion (expanded);
}
- prev_lexptr = lexptr;
+ pstate->prev_lexptr = pstate->lexptr;
- tokstart = lexptr;
+ tokstart = pstate->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].oper, 3) == 0)
{
if ((tokentab3[i].flags & FLAG_CXX) != 0
- && parse_language (par_state)->la_language != language_cplus)
+ && par_state->language ()->la_language != language_cplus)
break;
+ gdb_assert ((tokentab3[i].flags & FLAG_C) == 0);
- lexptr += 3;
+ pstate->lexptr += 3;
yylval.opcode = tokentab3[i].opcode;
return tokentab3[i].token;
}
if (strncmp (tokstart, tokentab2[i].oper, 2) == 0)
{
if ((tokentab2[i].flags & FLAG_CXX) != 0
- && parse_language (par_state)->la_language != language_cplus)
+ && par_state->language ()->la_language != language_cplus)
break;
+ gdb_assert ((tokentab2[i].flags & FLAG_C) == 0);
- lexptr += 2;
+ pstate->lexptr += 2;
yylval.opcode = tokentab2[i].opcode;
- if (parse_completion && tokentab2[i].token == ARROW)
+ if (tokentab2[i].token == ARROW)
last_was_structop = 1;
return tokentab2[i].token;
}
saw_name_at_eof = 0;
return COMPLETE;
}
- else if (saw_structop)
+ else if (par_state->parse_completion && saw_structop)
return COMPLETE;
else
return 0;
case ' ':
case '\t':
case '\n':
- lexptr++;
+ pstate->lexptr++;
goto retry;
case '[':
case '(':
paren_depth++;
- lexptr++;
- if (parse_language (par_state)->la_language == language_objc
+ pstate->lexptr++;
+ if (par_state->language ()->la_language == language_objc
&& c == '[')
return OBJC_LBRAC;
return c;
if (paren_depth == 0)
return 0;
paren_depth--;
- lexptr++;
+ pstate->lexptr++;
return c;
case ',':
- if (comma_terminates
+ if (pstate->comma_terminates
&& paren_depth == 0
&& ! scanning_macro_expansion ())
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')
{
- if (parse_completion)
- last_was_structop = 1;
+ last_was_structop = true;
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 '@':
{
const char *p = &tokstart[1];
- size_t len = strlen ("entry");
- if (parse_language (par_state)->la_language == language_objc)
+ if (par_state->language ()->la_language == language_objc)
{
size_t len = strlen ("selector");
if (strncmp (p, "selector", len) == 0
- && (p[len] == '\0' || isspace (p[len])))
+ && (p[len] == '\0' || ISSPACE (p[len])))
{
- lexptr = p + len;
+ pstate->lexptr = p + len;
return SELECTOR;
}
else if (*p == '"')
goto parse_string;
}
- while (isspace (*p))
+ while (ISSPACE (*p))
p++;
- if (strncmp (p, "entry", len) == 0 && !isalnum (p[len])
+ size_t len = strlen ("entry");
+ if (strncmp (p, "entry", len) == 0 && !c_ident_is_alnum (p[len])
&& p[len] != '_')
{
- lexptr = &p[len];
+ pstate->lexptr = &p[len];
return ENTRY;
}
}
case '{':
case '}':
symbol:
- lexptr++;
+ pstate->lexptr++;
return c;
case 'L':
parse_string:
{
int host_len;
- int result = parse_string_or_char (tokstart, &lexptr, &yylval.tsval,
- &host_len);
+ int result = parse_string_or_char (tokstart, &pstate->lexptr,
+ &yylval.tsval, &host_len);
if (result == CHAR)
{
if (host_len == 0)
else if (host_len > 2 && c == '\'')
{
++tokstart;
- namelen = lexptr - tokstart - 1;
- *is_quoted_name = 1;
+ namelen = pstate->lexptr - tokstart - 1;
+ *is_quoted_name = true;
goto tryname;
}
}
}
- if (!(c == '_' || c == '$'
- || (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')))
+ if (!(c == '_' || c == '$' || c_ident_is_alpha (c)))
/* We must have come across a bad character (e.g. ';'). */
error (_("Invalid character '%c' in expression."), c);
/* It's a name. See how long it is. */
namelen = 0;
for (c = tokstart[namelen];
- (c == '_' || c == '$' || (c >= '0' && c <= '9')
- || (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '<');)
+ (c == '_' || c == '$' || c_ident_is_alnum (c) || c == '<');)
{
/* Template parameter lists are part of the name.
FIXME: This mishandles `print $a<4&&$a>3'. */
return 0;
}
- lexptr += namelen;
+ pstate->lexptr += namelen;
tryname:
yylval.sval.length = namelen;
/* Catch specific keywords. */
- copy = copy_name (yylval.sval);
+ std::string copy = copy_name (yylval.sval);
for (i = 0; i < sizeof ident_tokens / sizeof ident_tokens[0]; i++)
- if (strcmp (copy, ident_tokens[i].oper) == 0)
+ if (copy == ident_tokens[i].oper)
{
if ((ident_tokens[i].flags & FLAG_CXX) != 0
- && parse_language (par_state)->la_language != language_cplus)
+ && par_state->language ()->la_language != language_cplus)
+ break;
+ if ((ident_tokens[i].flags & FLAG_C) != 0
+ && par_state->language ()->la_language != language_c
+ && par_state->language ()->la_language != language_objc)
break;
if ((ident_tokens[i].flags & FLAG_SHADOW) != 0)
{
struct field_of_this_result is_a_field_of_this;
- if (lookup_symbol (copy, expression_context_block,
+ if (lookup_symbol (copy.c_str (),
+ pstate->expression_context_block,
VAR_DOMAIN,
- (parse_language (par_state)->la_language
+ (par_state->language ()->la_language
== language_cplus ? &is_a_field_of_this
: NULL)).symbol
!= NULL)
}
if (*tokstart == '$')
- return VARIABLE;
+ return DOLLAR_VARIABLE;
- if (parse_completion && *lexptr == '\0')
+ if (pstate->parse_completion && *pstate->lexptr == '\0')
saw_name_at_eof = 1;
yylval.ssym.stoken = yylval.sval;
}
/* An object of this type is pushed on a FIFO by the "outer" lexer. */
-typedef struct
+struct token_and_value
{
int token;
YYSTYPE value;
-} token_and_value;
-
-DEF_VEC_O (token_and_value);
+};
/* A FIFO of tokens that have been read but not yet returned to the
parser. */
-static VEC (token_and_value) *token_fifo;
+static std::vector<token_and_value> token_fifo;
/* Non-zero if the lexer should return tokens from the FIFO. */
static int popping;
/* 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. */
+ in single quotes. IS_AFTER_STRUCTOP is true if this name follows
+ a structure operator -- either '.' or ARROW */
static int
classify_name (struct parser_state *par_state, const struct block *block,
- int is_quoted_name)
+ bool is_quoted_name, bool is_after_structop)
{
struct block_symbol bsym;
- char *copy;
struct field_of_this_result is_a_field_of_this;
- copy = copy_name (yylval.sval);
+ std::string copy = copy_name (yylval.sval);
/* 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));
- bsym = lookup_symbol (copy, block, VAR_DOMAIN,
- parse_language (par_state)->la_name_of_this
+ bsym = lookup_symbol (copy.c_str (), block, VAR_DOMAIN,
+ par_state->language ()->la_name_of_this
? &is_a_field_of_this : NULL);
if (bsym.symbol && SYMBOL_CLASS (bsym.symbol) == LOC_BLOCK)
{
struct field_of_this_result inner_is_a_field_of_this;
- bsym = lookup_symbol (copy, block, STRUCT_DOMAIN,
+ bsym = lookup_symbol (copy.c_str (), block, STRUCT_DOMAIN,
&inner_is_a_field_of_this);
if (bsym.symbol != NULL)
{
}
}
- /* If we found a field, then we want to prefer it over a
+ /* If we found a field on the "this" object, or we are looking
+ up a field on a struct, then we want to prefer it over a
filename. However, if the name was quoted, then it is better
to check for a filename or a block, since this is the only
way the user has of requiring the extension to be used. */
- if (is_a_field_of_this.type == NULL || is_quoted_name)
+ if ((is_a_field_of_this.type == NULL && !is_after_structop)
+ || is_quoted_name)
{
/* See if it's a file name. */
struct symtab *symtab;
- symtab = lookup_symtab (copy);
+ symtab = lookup_symtab (copy.c_str ());
if (symtab)
{
yylval.bval = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (symtab),
}
/* See if it's an ObjC classname. */
- if (parse_language (par_state)->la_language == language_objc && !bsym.symbol)
+ if (par_state->language ()->la_language == language_objc && !bsym.symbol)
{
- CORE_ADDR Class = lookup_objc_class (parse_gdbarch (par_state), copy);
+ CORE_ADDR Class = lookup_objc_class (par_state->gdbarch (),
+ copy.c_str ());
if (Class)
{
struct symbol *sym;
yylval.theclass.theclass = Class;
- sym = lookup_struct_typedef (copy, expression_context_block, 1);
+ sym = lookup_struct_typedef (copy.c_str (),
+ par_state->expression_context_block, 1);
if (sym)
yylval.theclass.type = SYMBOL_TYPE (sym);
return CLASSNAME;
|| (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,
+ int hextype = parse_number (par_state, copy.c_str (), yylval.sval.length,
0, &newlval);
if (hextype == INT)
yylval.ssym.is_a_field_of_this = is_a_field_of_this.type != NULL;
if (bsym.symbol == NULL
- && parse_language (par_state)->la_language == language_cplus
+ && par_state->language ()->la_language == language_cplus
&& is_a_field_of_this.type == NULL
- && lookup_minimal_symbol (copy, NULL, NULL).minsym == NULL)
+ && lookup_minimal_symbol (copy.c_str (), NULL, NULL).minsym == NULL)
return UNKNOWN_CPP_NAME;
return NAME;
const struct block *block, struct type *context)
{
struct type *type;
- char *copy;
if (context == NULL)
- return classify_name (par_state, block, 0);
+ return classify_name (par_state, block, false, false);
type = check_typedef (context);
if (!type_aggregate_p (type))
return ERROR;
- copy = copy_name (yylval.ssym.stoken);
+ std::string copy = copy_name (yylval.ssym.stoken);
/* N.B. We assume the symbol can only be in VAR_DOMAIN. */
- yylval.ssym.sym = cp_lookup_nested_symbol (type, copy, block, VAR_DOMAIN);
+ yylval.ssym.sym = cp_lookup_nested_symbol (type, copy.c_str (), 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.symbol == NULL)
{
- struct type *base_type = cp_find_type_baseclass_by_name (type, copy);
+ struct type *base_type = cp_find_type_baseclass_by_name (type,
+ copy.c_str ());
if (base_type != NULL)
{
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 = cp_find_type_baseclass_by_name (type, copy);
+ struct type *base_type
+ = cp_find_type_baseclass_by_name (type, copy.c_str ());
if (base_type != NULL)
{
struct type *context_type = NULL;
int last_to_examine, next_to_examine, checkpoint;
const struct block *search_block;
- int is_quoted_name;
+ bool is_quoted_name, last_lex_was_structop;
- if (popping && !VEC_empty (token_and_value, token_fifo))
+ if (popping && !token_fifo.empty ())
goto do_pop;
popping = 0;
+ last_lex_was_structop = last_was_structop;
+
/* Read the first token and decide what to do. Most of the
subsequent code is C++-only; but also depends on seeing a "::" or
name-like token. */
current.token = lex_one_token (pstate, &is_quoted_name);
if (current.token == NAME)
- current.token = classify_name (pstate, expression_context_block,
- is_quoted_name);
- if (parse_language (pstate)->la_language != language_cplus
+ current.token = classify_name (pstate, pstate->expression_context_block,
+ is_quoted_name, last_lex_was_structop);
+ if (pstate->language ()->la_language != language_cplus
|| (current.token != TYPENAME && current.token != COLONCOLON
&& current.token != FILENAME))
return current.token;
/* Read any sequence of alternating "::" and name-like tokens into
the token FIFO. */
current.value = yylval;
- VEC_safe_push (token_and_value, token_fifo, ¤t);
+ token_fifo.push_back (current);
last_was_coloncolon = current.token == COLONCOLON;
while (1)
{
- int ignore;
+ bool ignore;
/* We ignore quoted names other than the very first one.
Subsequent ones do not have any special meaning. */
current.token = lex_one_token (pstate, &ignore);
current.value = yylval;
- VEC_safe_push (token_and_value, token_fifo, ¤t);
+ token_fifo.push_back (current);
if ((last_was_coloncolon && current.token != NAME)
|| (!last_was_coloncolon && current.token != COLONCOLON))
/* We always read one extra token, so compute the number of tokens
to examine accordingly. */
- last_to_examine = VEC_length (token_and_value, token_fifo) - 2;
+ last_to_examine = token_fifo.size () - 2;
next_to_examine = 0;
- current = *VEC_index (token_and_value, token_fifo, next_to_examine);
+ current = 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;
else
{
gdb_assert (current.token == TYPENAME);
- search_block = expression_context_block;
+ search_block = pstate->expression_context_block;
obstack_grow (&name_obstack, current.value.sval.ptr,
current.value.sval.length);
context_type = current.value.tsym.type;
while (next_to_examine <= last_to_examine)
{
- token_and_value *next;
+ token_and_value next;
- next = VEC_index (token_and_value, token_fifo, next_to_examine);
+ next = token_fifo[next_to_examine];
++next_to_examine;
- if (next->token == NAME && last_was_coloncolon)
+ if (next.token == NAME && last_was_coloncolon)
{
int classification;
- yylval = next->value;
+ yylval = next.value;
classification = classify_inner_name (pstate, search_block,
context_type);
/* We keep going until we either run out of names, or until
/* We don't want to put a leading "::" into the name. */
obstack_grow_str (&name_obstack, "::");
}
- obstack_grow (&name_obstack, next->value.sval.ptr,
- next->value.sval.length);
+ obstack_grow (&name_obstack, next.value.sval.ptr,
+ next.value.sval.length);
yylval.sval.ptr = (const char *) obstack_base (&name_obstack);
yylval.sval.length = obstack_object_size (&name_obstack);
context_type = yylval.tsym.type;
}
- else if (next->token == COLONCOLON && !last_was_coloncolon)
+ else if (next.token == COLONCOLON && !last_was_coloncolon)
last_was_coloncolon = 1;
else
{
if (checkpoint > 0)
{
current.value.sval.ptr
- = (const char *) obstack_copy0 (&expansion_obstack,
- current.value.sval.ptr,
- current.value.sval.length);
+ = obstack_strndup (&cpstate->expansion_obstack,
+ current.value.sval.ptr,
+ current.value.sval.length);
- VEC_replace (token_and_value, token_fifo, 0, ¤t);
+ token_fifo[0] = current;
if (checkpoint > 1)
- VEC_block_remove (token_and_value, token_fifo, 1, checkpoint - 1);
+ token_fifo.erase (token_fifo.begin () + 1,
+ token_fifo.begin () + checkpoint);
}
do_pop:
- current = *VEC_index (token_and_value, token_fifo, 0);
- VEC_ordered_remove (token_and_value, token_fifo, 0);
+ current = token_fifo[0];
+ token_fifo.erase (token_fifo.begin ());
yylval = current.value;
return current.token;
}
int
c_parse (struct parser_state *par_state)
{
- int result;
- struct cleanup *back_to;
-
/* Setting up the parser state. */
+ scoped_restore pstate_restore = make_scoped_restore (&pstate);
gdb_assert (par_state != NULL);
pstate = par_state;
- back_to = make_cleanup (free_current_contents, &expression_macro_scope);
- make_cleanup_clear_parser_state (&pstate);
+ c_parse_state cstate;
+ scoped_restore cstate_restore = make_scoped_restore (&cpstate, &cstate);
- /* Set up the scope for macro expansion. */
- expression_macro_scope = NULL;
+ gdb::unique_xmalloc_ptr<struct macro_scope> macro_scope;
- if (expression_context_block)
- expression_macro_scope
- = sal_macro_scope (find_pc_line (expression_context_pc, 0));
+ if (par_state->expression_context_block)
+ macro_scope
+ = sal_macro_scope (find_pc_line (par_state->expression_context_pc, 0));
else
- expression_macro_scope = default_macro_scope ();
- if (! expression_macro_scope)
- expression_macro_scope = user_macro_scope ();
+ macro_scope = default_macro_scope ();
+ if (! macro_scope)
+ macro_scope = user_macro_scope ();
- /* Initialize macro expansion code. */
- obstack_init (&expansion_obstack);
- gdb_assert (! macro_original_text);
- make_cleanup (scan_macro_cleanup, 0);
+ scoped_restore restore_macro_scope
+ = make_scoped_restore (&expression_macro_scope, macro_scope.get ());
scoped_restore restore_yydebug = make_scoped_restore (&yydebug,
parser_debug);
/* Initialize some state used by the lexer. */
- last_was_structop = 0;
+ last_was_structop = false;
saw_name_at_eof = 0;
+ paren_depth = 0;
- VEC_free (token_and_value, token_fifo);
+ token_fifo.clear ();
popping = 0;
- obstack_init (&name_obstack);
- make_cleanup_obstack_free (&name_obstack);
-
- result = yyparse ();
- do_cleanups (back_to);
+ name_obstack.clear ();
- return result;
+ return yyparse ();
}
#ifdef YYBISON
break;
case NSSTRING:
- case VARIABLE:
- parser_fprintf (file, "sval<%s>", copy_name (value.sval));
+ case DOLLAR_VARIABLE:
+ parser_fprintf (file, "sval<%s>", copy_name (value.sval).c_str ());
break;
case TYPENAME:
parser_fprintf (file, "tsym<type=%s, name=%s>",
TYPE_SAFE_NAME (value.tsym.type),
- copy_name (value.tsym.stoken));
+ copy_name (value.tsym.stoken).c_str ());
break;
case NAME:
case NAME_OR_INT:
case BLOCKNAME:
parser_fprintf (file, "ssym<name=%s, sym=%s, field_of_this=%d>",
- copy_name (value.ssym.stoken),
+ copy_name (value.ssym.stoken).c_str (),
(value.ssym.sym.symbol == NULL
- ? "(null)" : SYMBOL_PRINT_NAME (value.ssym.sym.symbol)),
+ ? "(null)" : value.ssym.sym.symbol->print_name ()),
value.ssym.is_a_field_of_this);
break;
#endif
-void
+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 / deliverable / binutils-gdb.git / blobdiff