/* YACC parser for C expressions, for GDB.
- Copyright (C) 1986, 1989-2000, 2003-2004, 2006-2012 Free Software
- Foundation, Inc.
+ Copyright (C) 1986-2013 Free Software Foundation, Inc.
This file is part of GDB.
#include "dfp.h"
#include "gdb_assert.h"
#include "macroscope.h"
+#include "objc-lang.h"
+#include "typeprint.h"
+#include "cp-abi.h"
#define parse_type builtin_type (parse_gdbarch)
gdb_byte val[16];
struct type *type;
} typed_val_decfloat;
- struct symbol *sym;
struct type *tval;
struct stoken sval;
struct typed_stoken tsval;
int voidval;
struct block *bval;
enum exp_opcode opcode;
- struct internalvar *ivar;
struct stoken_vector svec;
VEC (type_ptr) *tvec;
- int *ivec;
struct type_stack *type_stack;
+
+ struct objc_class_str class;
}
%{
/* YYSTYPE gets defined by %union */
-static int parse_number (char *, int, int, YYSTYPE *);
+static int parse_number (const char *, int, int, YYSTYPE *);
static struct stoken operator_stoken (const char *);
static void check_parameter_typelist (VEC (type_ptr) *);
+static void write_destructor_name (struct stoken);
+
+static void c_print_token (FILE *file, int type, YYSTYPE value);
+#define YYPRINT(FILE, TYPE, VALUE) c_print_token (FILE, TYPE, VALUE)
%}
%type <voidval> exp exp1 type_exp start variable qualified_name lcurly
nonterminal "name", which matches either NAME or TYPENAME. */
%token <tsval> STRING
+%token <sval> NSSTRING /* ObjC Foundation "NSString" literal */
+%token SELECTOR /* ObjC "@selector" pseudo-operator */
%token <tsval> CHAR
%token <ssym> NAME /* BLOCKNAME defined below to give it higher precedence. */
%token <ssym> UNKNOWN_CPP_NAME
%token <voidval> COMPLETE
%token <tsym> TYPENAME
+%token <class> CLASSNAME /* ObjC Class name */
%type <sval> name
%type <svec> string_exp
%type <ssym> name_not_typename
%type <tsym> typename
+ /* This is like a '[' token, but is only generated when parsing
+ Objective C. This lets us reuse the same parser without
+ erroneously parsing ObjC-specific expressions in C. */
+%token OBJC_LBRAC
+
/* A NAME_OR_INT is a symbol which is not known in the symbol table,
but which would parse as a valid number in the current input radix.
E.g. "c" when input_radix==16. Depending on the parse, it will be
%type <sval> operator
%token REINTERPRET_CAST DYNAMIC_CAST STATIC_CAST CONST_CAST
%token ENTRY
+%token TYPEOF
+%token DECLTYPE
+%token TYPEID
/* Special type cases, put in to allow the parser to distinguish different
legal basetypes. */
%left '+' '-'
%left '*' '/' '%'
%right UNARY INCREMENT DECREMENT
-%right ARROW ARROW_STAR '.' DOT_STAR '[' '('
+%right ARROW ARROW_STAR '.' DOT_STAR '[' OBJC_LBRAC '('
%token <ssym> BLOCKNAME
%token <bval> FILENAME
%type <bval> block
{ write_exp_elt_opcode(OP_TYPE);
write_exp_elt_type($1);
write_exp_elt_opcode(OP_TYPE);}
+ | TYPEOF '(' exp ')'
+ {
+ write_exp_elt_opcode (OP_TYPEOF);
+ }
+ | TYPEOF '(' type ')'
+ {
+ write_exp_elt_opcode (OP_TYPE);
+ write_exp_elt_type ($3);
+ write_exp_elt_opcode (OP_TYPE);
+ }
+ | DECLTYPE '(' exp ')'
+ {
+ write_exp_elt_opcode (OP_DECLTYPE);
+ }
;
/* Expressions, including the comma operator. */
{ write_exp_elt_opcode (UNOP_POSTDECREMENT); }
;
+exp : TYPEID '(' exp ')' %prec UNARY
+ { write_exp_elt_opcode (OP_TYPEID); }
+ ;
+
+exp : TYPEID '(' type_exp ')' %prec UNARY
+ { write_exp_elt_opcode (OP_TYPEID); }
+ ;
+
exp : SIZEOF exp %prec UNARY
{ write_exp_elt_opcode (UNOP_SIZEOF); }
;
write_exp_elt_opcode (STRUCTOP_PTR); }
;
+exp : exp ARROW '~' name
+ { write_exp_elt_opcode (STRUCTOP_PTR);
+ write_destructor_name ($4);
+ write_exp_elt_opcode (STRUCTOP_PTR); }
+ ;
+
+exp : exp ARROW '~' name COMPLETE
+ { mark_struct_expression ();
+ write_exp_elt_opcode (STRUCTOP_PTR);
+ write_destructor_name ($4);
+ write_exp_elt_opcode (STRUCTOP_PTR); }
+ ;
+
exp : exp ARROW qualified_name
{ /* exp->type::name becomes exp->*(&type::name) */
/* Note: this doesn't work if name is a
write_exp_elt_opcode (STRUCTOP_STRUCT); }
;
+exp : exp '.' '~' name
+ { write_exp_elt_opcode (STRUCTOP_STRUCT);
+ write_destructor_name ($4);
+ write_exp_elt_opcode (STRUCTOP_STRUCT); }
+ ;
+
+exp : exp '.' '~' name COMPLETE
+ { mark_struct_expression ();
+ write_exp_elt_opcode (STRUCTOP_STRUCT);
+ write_destructor_name ($4);
+ write_exp_elt_opcode (STRUCTOP_STRUCT); }
+ ;
+
exp : exp '.' qualified_name
{ /* exp.type::name becomes exp.*(&type::name) */
/* Note: this doesn't work if name is a
{ write_exp_elt_opcode (BINOP_SUBSCRIPT); }
;
+exp : exp OBJC_LBRAC exp1 ']'
+ { write_exp_elt_opcode (BINOP_SUBSCRIPT); }
+ ;
+
+/*
+ * The rules below parse ObjC message calls of the form:
+ * '[' target selector {':' argument}* ']'
+ */
+
+exp : OBJC_LBRAC TYPENAME
+ {
+ CORE_ADDR class;
+
+ class = lookup_objc_class (parse_gdbarch,
+ copy_name ($2.stoken));
+ if (class == 0)
+ error (_("%s is not an ObjC Class"),
+ copy_name ($2.stoken));
+ write_exp_elt_opcode (OP_LONG);
+ write_exp_elt_type (parse_type->builtin_int);
+ write_exp_elt_longcst ((LONGEST) class);
+ write_exp_elt_opcode (OP_LONG);
+ start_msglist();
+ }
+ msglist ']'
+ { write_exp_elt_opcode (OP_OBJC_MSGCALL);
+ end_msglist();
+ write_exp_elt_opcode (OP_OBJC_MSGCALL);
+ }
+ ;
+
+exp : OBJC_LBRAC CLASSNAME
+ {
+ write_exp_elt_opcode (OP_LONG);
+ write_exp_elt_type (parse_type->builtin_int);
+ write_exp_elt_longcst ((LONGEST) $2.class);
+ write_exp_elt_opcode (OP_LONG);
+ start_msglist();
+ }
+ msglist ']'
+ { write_exp_elt_opcode (OP_OBJC_MSGCALL);
+ end_msglist();
+ write_exp_elt_opcode (OP_OBJC_MSGCALL);
+ }
+ ;
+
+exp : OBJC_LBRAC exp
+ { start_msglist(); }
+ msglist ']'
+ { write_exp_elt_opcode (OP_OBJC_MSGCALL);
+ end_msglist();
+ write_exp_elt_opcode (OP_OBJC_MSGCALL);
+ }
+ ;
+
+msglist : name
+ { add_msglist(&$1, 0); }
+ | msgarglist
+ ;
+
+msgarglist : msgarg
+ | msgarglist msgarg
+ ;
+
+msgarg : name ':' exp
+ { add_msglist(&$1, 1); }
+ | ':' exp /* Unnamed arg. */
+ { add_msglist(0, 1); }
+ | ',' exp /* Variable number of args. */
+ { add_msglist(0, 0); }
+ ;
+
exp : exp '('
/* This is to save the value of arglist_len
being accumulated by an outer function call. */
}
;
+exp : SELECTOR '(' name ')'
+ {
+ write_exp_elt_opcode (OP_OBJC_SELECTOR);
+ write_exp_string ($3);
+ write_exp_elt_opcode (OP_OBJC_SELECTOR); }
+ ;
+
exp : SIZEOF '(' type ')' %prec UNARY
{ write_exp_elt_opcode (OP_LONG);
write_exp_elt_type (lookup_signed_typename
}
;
+exp : NSSTRING /* ObjC NextStep NSString constant
+ * of the form '@' '"' string '"'.
+ */
+ { write_exp_elt_opcode (OP_OBJC_NSSTRING);
+ write_exp_string ($1);
+ write_exp_elt_opcode (OP_OBJC_NSSTRING); }
+ ;
+
/* C++. */
exp : TRUEKEYWORD
{ write_exp_elt_opcode (OP_LONG);
block : block COLONCOLON name
{ struct symbol *tem
= lookup_symbol (copy_name ($3), $1,
- VAR_DOMAIN, (int *) NULL);
+ VAR_DOMAIN, NULL);
if (!tem || SYMBOL_CLASS (tem) != LOC_BLOCK)
error (_("No function \"%s\" in specified context."),
copy_name ($3));
variable: block COLONCOLON name
{ struct symbol *sym;
sym = lookup_symbol (copy_name ($3), $1,
- VAR_DOMAIN, (int *) NULL);
+ VAR_DOMAIN, NULL);
if (sym == 0)
error (_("No symbol \"%s\" in specified context."),
copy_name ($3));
&& TYPE_CODE (type) != TYPE_CODE_UNION
&& TYPE_CODE (type) != TYPE_CODE_NAMESPACE)
error (_("`%s' is not defined as an aggregate type."),
- TYPE_NAME (type));
+ TYPE_SAFE_NAME (type));
write_exp_elt_opcode (OP_SCOPE);
write_exp_elt_type (type);
{
struct type *type = $1.type;
struct stoken tmp_token;
+ char *buf;
+
CHECK_TYPEDEF (type);
if (TYPE_CODE (type) != TYPE_CODE_STRUCT
&& TYPE_CODE (type) != TYPE_CODE_UNION
&& TYPE_CODE (type) != TYPE_CODE_NAMESPACE)
error (_("`%s' is not defined as an aggregate type."),
- TYPE_NAME (type));
-
- tmp_token.ptr = (char*) alloca ($4.length + 2);
+ TYPE_SAFE_NAME (type));
+ buf = alloca ($4.length + 2);
+ tmp_token.ptr = buf;
tmp_token.length = $4.length + 1;
- tmp_token.ptr[0] = '~';
- memcpy (tmp_token.ptr+1, $4.ptr, $4.length);
- tmp_token.ptr[tmp_token.length] = 0;
+ buf[0] = '~';
+ memcpy (buf+1, $4.ptr, $4.length);
+ buf[tmp_token.length] = 0;
/* Check for valid destructor name. */
destructor_name_p (tmp_token.ptr, $1.type);
char *copy = copy_name ($3);
error (_("No type \"%s\" within class "
"or namespace \"%s\"."),
- copy, TYPE_NAME ($1.type));
+ copy, TYPE_SAFE_NAME ($1.type));
}
;
{
char *name = copy_name ($2.stoken);
struct symbol *sym;
- struct minimal_symbol *msymbol;
+ struct bound_minimal_symbol msymbol;
sym =
lookup_symbol (name, (const struct block *) NULL,
- VAR_DOMAIN, (int *) NULL);
+ VAR_DOMAIN, NULL);
if (sym)
{
write_exp_elt_opcode (OP_VAR_VALUE);
break;
}
- msymbol = lookup_minimal_symbol (name, NULL, NULL);
- if (msymbol != NULL)
+ msymbol = lookup_bound_minimal_symbol (name);
+ if (msymbol.minsym != NULL)
write_exp_msymbol (msymbol);
else if (!have_full_symbols () && !have_partial_symbols ())
error (_("No symbol table is loaded. Use the \"file\" command."));
}
else
{
- struct minimal_symbol *msymbol;
+ struct bound_minimal_symbol msymbol;
char *arg = copy_name ($1.stoken);
msymbol =
- lookup_minimal_symbol (arg, NULL, NULL);
- if (msymbol != NULL)
+ lookup_bound_minimal_symbol (arg);
+ if (msymbol.minsym != NULL)
write_exp_msymbol (msymbol);
else if (!have_full_symbols () && !have_partial_symbols ())
error (_("No symbol table is loaded. Use the \"file\" command."));
array_mod: '[' ']'
{ $$ = -1; }
+ | OBJC_LBRAC ']'
+ { $$ = -1; }
| '[' INT ']'
{ $$ = $2.val; }
+ | OBJC_LBRAC INT ']'
+ { $$ = $2.val; }
;
func_mod: '(' ')'
| STRUCT name
{ $$ = lookup_struct (copy_name ($2),
expression_context_block); }
+ | STRUCT COMPLETE
+ {
+ mark_completion_tag (TYPE_CODE_STRUCT, "", 0);
+ $$ = NULL;
+ }
+ | STRUCT name COMPLETE
+ {
+ mark_completion_tag (TYPE_CODE_STRUCT, $2.ptr,
+ $2.length);
+ $$ = NULL;
+ }
| CLASS name
{ $$ = lookup_struct (copy_name ($2),
expression_context_block); }
+ | CLASS COMPLETE
+ {
+ mark_completion_tag (TYPE_CODE_CLASS, "", 0);
+ $$ = NULL;
+ }
+ | CLASS name COMPLETE
+ {
+ mark_completion_tag (TYPE_CODE_CLASS, $2.ptr,
+ $2.length);
+ $$ = NULL;
+ }
| UNION name
{ $$ = lookup_union (copy_name ($2),
expression_context_block); }
+ | UNION COMPLETE
+ {
+ mark_completion_tag (TYPE_CODE_UNION, "", 0);
+ $$ = NULL;
+ }
+ | UNION name COMPLETE
+ {
+ mark_completion_tag (TYPE_CODE_UNION, $2.ptr,
+ $2.length);
+ $$ = NULL;
+ }
| ENUM name
{ $$ = lookup_enum (copy_name ($2),
expression_context_block); }
+ | ENUM COMPLETE
+ {
+ mark_completion_tag (TYPE_CODE_ENUM, "", 0);
+ $$ = NULL;
+ }
+ | ENUM name COMPLETE
+ {
+ mark_completion_tag (TYPE_CODE_ENUM, $2.ptr,
+ $2.length);
+ $$ = NULL;
+ }
| UNSIGNED typename
{ $$ = lookup_unsigned_typename (parse_language,
parse_gdbarch,
{ $$ = operator_stoken (" new[]"); }
| OPERATOR DELETE '[' ']'
{ $$ = operator_stoken (" delete[]"); }
+ | OPERATOR NEW OBJC_LBRAC ']'
+ { $$ = operator_stoken (" new[]"); }
+ | OPERATOR DELETE OBJC_LBRAC ']'
+ { $$ = operator_stoken (" delete[]"); }
| OPERATOR '+'
{ $$ = operator_stoken ("+"); }
| OPERATOR '-'
{ $$ = operator_stoken ("()"); }
| OPERATOR '[' ']'
{ $$ = operator_stoken ("[]"); }
+ | OPERATOR OBJC_LBRAC ']'
+ { $$ = operator_stoken ("[]"); }
| OPERATOR conversion_type_id
{ char *name;
long length;
struct ui_file *buf = mem_fileopen ();
- c_print_type ($2, NULL, buf, -1, 0);
+ c_print_type ($2, NULL, buf, -1, 0,
+ &type_print_raw_options);
name = ui_file_xstrdup (buf, &length);
ui_file_delete (buf);
$$ = operator_stoken (name);
*/
| operator
{
+ struct field_of_this_result is_a_field_of_this;
+
$$.stoken = $1;
$$.sym = lookup_symbol ($1.ptr,
expression_context_block,
VAR_DOMAIN,
- &$$.is_a_field_of_this);
+ &is_a_field_of_this);
+ $$.is_a_field_of_this
+ = is_a_field_of_this.type != NULL;
}
| UNKNOWN_CPP_NAME
;
%%
+/* Like write_exp_string, but prepends a '~'. */
+
+static void
+write_destructor_name (struct stoken token)
+{
+ char *copy = alloca (token.length + 1);
+
+ copy[0] = '~';
+ memcpy (©[1], token.ptr, token.length);
+
+ token.ptr = copy;
+ ++token.length;
+
+ write_exp_string (token);
+}
+
/* Returns a stoken of the operator name given by OP (which does not
include the string "operator"). */
static struct stoken
{
static const char *operator_string = "operator";
struct stoken st = { NULL, 0 };
+ char *buf;
+
st.length = strlen (operator_string) + strlen (op);
- st.ptr = malloc (st.length + 1);
- strcpy (st.ptr, operator_string);
- strcat (st.ptr, op);
+ buf = malloc (st.length + 1);
+ strcpy (buf, operator_string);
+ strcat (buf, op);
+ st.ptr = buf;
/* The toplevel (c_parse) will free the memory allocated here. */
- make_cleanup (free, st.ptr);
+ make_cleanup (free, buf);
return st;
};
/*** Needs some error checking for the float case ***/
static int
-parse_number (char *p, int len, int parsed_float, YYSTYPE *putithere)
+parse_number (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. */
ULONGEST high_bit;
struct type *signed_type;
struct type *unsigned_type;
+ char *p;
+
+ p = alloca (len);
+ memcpy (p, buf, len);
if (parsed_float)
{
character was emitted, 0 otherwise. */
int
-c_parse_escape (char **ptr, struct obstack *output)
+c_parse_escape (const char **ptr, struct obstack *output)
{
- char *tokptr = *ptr;
+ const char *tokptr = *ptr;
int result = 1;
/* Some escape sequences undergo character set conversion. Those we
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 (char *tokptr, char **outptr, struct typed_stoken *value,
- int *host_chars)
+parse_string_or_char (const char *tokptr, const char **outptr,
+ struct typed_stoken *value, int *host_chars)
{
int quote;
enum c_string_type type;
+ int is_objc = 0;
/* Build the gdb internal form of the input string in tempbuf. Note
that the buffer is null byte terminated *only* for the
type = C_STRING_32;
++tokptr;
}
+ else if (*tokptr == '@')
+ {
+ /* An Objective C string. */
+ is_objc = 1;
+ type = C_STRING;
+ ++tokptr;
+ }
else
type = C_STRING;
*outptr = tokptr;
- return quote == '"' ? STRING : CHAR;
+ return quote == '"' ? (is_objc ? NSSTRING : STRING) : CHAR;
}
/* This is used to associate some attributes with a token. */
{"const_cast", CONST_CAST, OP_NULL, FLAG_CXX },
{"dynamic_cast", DYNAMIC_CAST, OP_NULL, FLAG_CXX },
{"static_cast", STATIC_CAST, OP_NULL, FLAG_CXX },
- {"reinterpret_cast", REINTERPRET_CAST, OP_NULL, FLAG_CXX }
+ {"reinterpret_cast", REINTERPRET_CAST, OP_NULL, FLAG_CXX },
+
+ {"__typeof__", TYPEOF, OP_TYPEOF, 0 },
+ {"__typeof", TYPEOF, OP_TYPEOF, 0 },
+ {"typeof", TYPEOF, OP_TYPEOF, FLAG_SHADOW },
+ {"__decltype", DECLTYPE, OP_DECLTYPE, FLAG_CXX },
+ {"decltype", DECLTYPE, OP_DECLTYPE, FLAG_CXX | FLAG_SHADOW },
+
+ {"typeid", TYPEID, OP_TYPEID, FLAG_CXX}
};
/* When we find that lexptr (the global var defined in parse.c) is
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 char *macro_original_text;
+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
int c;
int namelen;
unsigned int i;
- char *tokstart;
+ const char *tokstart;
int saw_structop = last_was_structop;
char *copy;
lexptr += 2;
yylval.opcode = tokentab2[i].opcode;
- if (in_parse_field && tokentab2[i].token == ARROW)
+ if (parse_completion && tokentab2[i].token == ARROW)
last_was_structop = 1;
return tokentab2[i].token;
}
case '(':
paren_depth++;
lexptr++;
+ if (parse_language->la_language == language_objc && c == '[')
+ return OBJC_LBRAC;
return c;
case ']':
/* Might be a floating point number. */
if (lexptr[1] < '0' || lexptr[1] > '9')
{
- if (in_parse_field)
+ if (parse_completion)
last_was_structop = 1;
goto symbol; /* Nope, must be a symbol. */
}
{
/* It's a number. */
int got_dot = 0, got_e = 0, toktype;
- char *p = tokstart;
+ const char *p = tokstart;
int hex = input_radix > 10;
if (c == '0' && (p[1] == 'x' || p[1] == 'X'))
case '@':
{
- char *p = &tokstart[1];
+ const char *p = &tokstart[1];
size_t len = strlen ("entry");
+ if (parse_language->la_language == language_objc)
+ {
+ size_t len = strlen ("selector");
+
+ if (strncmp (p, "selector", len) == 0
+ && (p[len] == '\0' || isspace (p[len])))
+ {
+ lexptr = p + len;
+ return SELECTOR;
+ }
+ else if (*p == '"')
+ goto parse_string;
+ }
+
while (isspace (*p))
p++;
if (strncmp (p, "entry", len) == 0 && !isalnum (p[len])
/* Fall through. */
case '\'':
case '"':
+
+ parse_string:
{
int host_len;
int result = parse_string_or_char (tokstart, &lexptr, &yylval.tsval,
characters; for comparison expressions, e.g. "a < b > c",
there must be spaces before the '<', etc. */
- char * p = find_template_name_end (tokstart + namelen);
+ const char *p = find_template_name_end (tokstart + namelen);
+
if (p)
namelen = p - tokstart;
}
&& (tokstart[namelen] == ' ' || tokstart[namelen] == '\t')
&& ! scanning_macro_expansion ())
{
- char *p = tokstart + namelen + 1;
+ const char *p = tokstart + namelen + 1;
+
while (*p == ' ' || *p == '\t')
p++;
if (*p >= '0' && *p <= '9')
if ((ident_tokens[i].flags & FLAG_SHADOW) != 0)
{
- int is_a_field_of_this = 0;
+ struct field_of_this_result is_a_field_of_this;
if (lookup_symbol (copy, expression_context_block,
VAR_DOMAIN,
if (*tokstart == '$')
return VARIABLE;
- if (in_parse_field && *lexptr == '\0')
+ if (parse_completion && *lexptr == '\0')
saw_name_at_eof = 1;
+
+ yylval.ssym.stoken = yylval.sval;
+ yylval.ssym.sym = NULL;
+ yylval.ssym.is_a_field_of_this = 0;
return NAME;
}
in which lookups start; this can be NULL to mean the global
scope. */
static int
-classify_name (struct block *block)
+classify_name (const struct block *block)
{
struct symbol *sym;
char *copy;
- int is_a_field_of_this = 0;
+ struct field_of_this_result is_a_field_of_this;
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));
+
sym = lookup_symbol (copy, block, VAR_DOMAIN,
- parse_language->la_language == language_cplus
- ? &is_a_field_of_this : (int *) NULL);
+ parse_language->la_name_of_this
+ ? &is_a_field_of_this : NULL);
if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK)
{
yylval.ssym.sym = sym;
- yylval.ssym.is_a_field_of_this = is_a_field_of_this;
+ yylval.ssym.is_a_field_of_this = is_a_field_of_this.type != NULL;
return BLOCKNAME;
}
else if (!sym)
yylval.bval = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), STATIC_BLOCK);
return FILENAME;
}
+
+ /* If we found a field of 'this', we might have erroneously
+ found a constructor where we wanted a type name. Handle this
+ case by noticing that we found a constructor and then look up
+ the type tag instead. */
+ if (is_a_field_of_this.type != NULL
+ && is_a_field_of_this.fn_field != NULL
+ && TYPE_FN_FIELD_CONSTRUCTOR (is_a_field_of_this.fn_field->fn_fields,
+ 0))
+ {
+ 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)
+ {
+ yylval.tsym.type = SYMBOL_TYPE (sym);
+ return TYPENAME;
+ }
+ }
}
if (sym && SYMBOL_CLASS (sym) == LOC_TYPEDEF)
if (yylval.tsym.type != NULL)
return TYPENAME;
+ /* See if it's an ObjC classname. */
+ if (parse_language->la_language == language_objc && !sym)
+ {
+ CORE_ADDR Class = lookup_objc_class (parse_gdbarch, copy);
+ if (Class)
+ {
+ yylval.class.class = Class;
+ sym = lookup_struct_typedef (copy, expression_context_block, 1);
+ if (sym)
+ yylval.class.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 (hextype == INT)
{
yylval.ssym.sym = sym;
- yylval.ssym.is_a_field_of_this = is_a_field_of_this;
+ 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.is_a_field_of_this = is_a_field_of_this;
+ yylval.ssym.is_a_field_of_this = is_a_field_of_this.type != NULL;
if (sym == NULL
&& parse_language->la_language == language_cplus
- && !is_a_field_of_this
+ && is_a_field_of_this.type == NULL
&& !lookup_minimal_symbol (copy, NULL, NULL))
return UNKNOWN_CPP_NAME;
}
/* Like classify_name, but used by the inner loop of the lexer, when a
- name might have already been seen. FIRST_NAME is true if the token
- in `yylval' is the first component of a name, false otherwise. */
+ name might have already been seen. CONTEXT is the context type, or
+ NULL if this is the first component of a name. */
static int
-classify_inner_name (struct block *block, int first_name)
+classify_inner_name (const struct block *block, struct type *context)
{
- struct type *type, *new_type;
+ struct type *type;
char *copy;
- if (first_name)
+ if (context == NULL)
return classify_name (block);
- type = check_typedef (yylval.tsym.type);
+ type = check_typedef (context);
if (TYPE_CODE (type) != TYPE_CODE_STRUCT
&& TYPE_CODE (type) != TYPE_CODE_UNION
&& TYPE_CODE (type) != TYPE_CODE_NAMESPACE)
return ERROR;
- copy = copy_name (yylval.tsym.stoken);
- yylval.ssym.sym = cp_lookup_nested_symbol (yylval.tsym.type, copy, block);
+ copy = copy_name (yylval.ssym.stoken);
+ yylval.ssym.sym = cp_lookup_nested_symbol (type, copy, block);
if (yylval.ssym.sym == NULL)
return ERROR;
return TYPENAME;
default:
- yylval.ssym.is_a_field_of_this = 0;
return NAME;
}
internal_error (__FILE__, __LINE__, _("not reached"));
yylex (void)
{
token_and_value current;
- int first_was_coloncolon, last_was_coloncolon, first_iter;
+ int first_was_coloncolon, last_was_coloncolon;
+ struct type *context_type = NULL;
+ int last_to_examine, next_to_examine, checkpoint;
+ const struct block *search_block;
if (popping && !VEC_empty (token_and_value, token_fifo))
- {
- token_and_value tv = *VEC_index (token_and_value, token_fifo, 0);
- VEC_ordered_remove (token_and_value, token_fifo, 0);
- yylval = tv.value;
- return tv.token;
- }
+ goto do_pop;
popping = 0;
+ /* 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 ();
if (current.token == NAME)
current.token = classify_name (expression_context_block);
if (parse_language->la_language != language_cplus
- || (current.token != TYPENAME && current.token != COLONCOLON))
+ || (current.token != TYPENAME && current.token != COLONCOLON
+ && current.token != FILENAME))
return current.token;
- first_was_coloncolon = current.token == COLONCOLON;
- last_was_coloncolon = first_was_coloncolon;
- obstack_free (&name_obstack, obstack_base (&name_obstack));
- if (!last_was_coloncolon)
- obstack_grow (&name_obstack, yylval.sval.ptr, yylval.sval.length);
+ /* Read any sequence of alternating "::" and name-like tokens into
+ the token FIFO. */
current.value = yylval;
- first_iter = 1;
+ VEC_safe_push (token_and_value, token_fifo, ¤t);
+ last_was_coloncolon = current.token == COLONCOLON;
while (1)
{
- token_and_value next;
+ current.token = lex_one_token ();
+ current.value = yylval;
+ VEC_safe_push (token_and_value, token_fifo, ¤t);
+
+ if ((last_was_coloncolon && current.token != NAME)
+ || (!last_was_coloncolon && current.token != COLONCOLON))
+ break;
+ last_was_coloncolon = !last_was_coloncolon;
+ }
+ popping = 1;
+
+ /* 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;
+ next_to_examine = 0;
+
+ current = *VEC_index (token_and_value, token_fifo, next_to_examine);
+ ++next_to_examine;
+
+ obstack_free (&name_obstack, obstack_base (&name_obstack));
+ checkpoint = 0;
+ if (current.token == FILENAME)
+ search_block = current.value.bval;
+ else if (current.token == COLONCOLON)
+ search_block = NULL;
+ else
+ {
+ gdb_assert (current.token == TYPENAME);
+ search_block = expression_context_block;
+ obstack_grow (&name_obstack, current.value.sval.ptr,
+ current.value.sval.length);
+ context_type = current.value.tsym.type;
+ checkpoint = 1;
+ }
+
+ first_was_coloncolon = current.token == COLONCOLON;
+ last_was_coloncolon = first_was_coloncolon;
- next.token = lex_one_token ();
- next.value = yylval;
+ while (next_to_examine <= last_to_examine)
+ {
+ token_and_value *next;
- if (next.token == NAME && last_was_coloncolon)
+ next = VEC_index (token_and_value, token_fifo, next_to_examine);
+ ++next_to_examine;
+
+ if (next->token == NAME && last_was_coloncolon)
{
int classification;
- classification = classify_inner_name (first_was_coloncolon
- ? NULL
- : expression_context_block,
- first_iter);
+ yylval = next->value;
+ classification = classify_inner_name (search_block, context_type);
/* We keep going until we either run out of names, or until
we have a qualified name which is not a type. */
if (classification != TYPENAME && classification != NAME)
- {
- /* Push the final component and leave the loop. */
- VEC_safe_push (token_and_value, token_fifo, &next);
- break;
- }
+ break;
+
+ /* Accept up to this token. */
+ checkpoint = next_to_examine;
/* Update the partial name we are constructing. */
- if (!first_iter)
+ if (context_type != NULL)
{
/* 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 = obstack_base (&name_obstack);
yylval.sval.length = obstack_object_size (&name_obstack);
current.token = classification;
last_was_coloncolon = 0;
+
+ if (classification == NAME)
+ break;
+
+ 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
{
/* We've reached the end of the name. */
- VEC_safe_push (token_and_value, token_fifo, &next);
break;
}
-
- first_iter = 0;
}
- popping = 1;
-
- /* If we ended with a "::", insert it too. */
- if (last_was_coloncolon)
+ /* If we have a replacement token, install it as the first token in
+ the FIFO, and delete the other constituent tokens. */
+ if (checkpoint > 0)
{
- token_and_value cc;
- memset (&cc, 0, sizeof (token_and_value));
- if (first_was_coloncolon && first_iter)
- {
- yylval = cc.value;
- return COLONCOLON;
- }
- cc.token = COLONCOLON;
- VEC_safe_insert (token_and_value, token_fifo, 0, &cc);
+ current.value.sval.ptr = obstack_copy0 (&expansion_obstack,
+ current.value.sval.ptr,
+ current.value.sval.length);
+
+ VEC_replace (token_and_value, token_fifo, 0, ¤t);
+ if (checkpoint > 1)
+ VEC_block_remove (token_and_value, token_fifo, 1, checkpoint - 1);
}
+ do_pop:
+ current = *VEC_index (token_and_value, token_fifo, 0);
+ VEC_ordered_remove (token_and_value, token_fifo, 0);
yylval = current.value;
- yylval.sval.ptr = obstack_copy0 (&expansion_obstack,
- yylval.sval.ptr,
- yylval.sval.length);
return current.token;
}
return result;
}
+/* This is called via the YYPRINT macro when parser debugging is
+ enabled. It prints a token's value. */
+
+static void
+c_print_token (FILE *file, int type, YYSTYPE value)
+{
+ 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));
+ break;
+
+ case CHAR:
+ case STRING:
+ {
+ char *copy = 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);
+ }
+ break;
+
+ case NSSTRING:
+ case VARIABLE:
+ 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));
+ 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);
+ break;
+
+ case FILENAME:
+ fprintf (file, "bval<%s>", host_address_to_string (value.bval));
+ break;
+ }
+}
void
yyerror (char *msg)
projects / deliverable / binutils-gdb.git / blobdiff