/* YACC parser for D expressions, for GDB.
- Copyright (C) 2014-2016 Free Software Foundation, Inc.
+ Copyright (C) 2014-2018 Free Software Foundation, Inc.
This file is part of GDB.
static int yylex (void);
-void yyerror (char *);
+static void yyerror (const char *);
static int type_aggregate_p (struct type *);
struct type *type;
} typed_val_int;
struct {
- DOUBLEST dval;
+ gdb_byte val[16];
struct type *type;
} typed_val_float;
struct symbol *sym;
CastExpression:
CAST_KEYWORD '(' TypeExp ')' UnaryExpression
- { write_exp_elt_opcode (pstate, UNOP_CAST);
- write_exp_elt_type (pstate, $3);
- write_exp_elt_opcode (pstate, UNOP_CAST); }
+ { write_exp_elt_opcode (pstate, UNOP_CAST_TYPE); }
/* C style cast is illegal D, but is still recognised in
the grammar, so we keep this around for convenience. */
| '(' TypeExp ')' UnaryExpression
- { write_exp_elt_opcode (pstate, UNOP_CAST);
- write_exp_elt_type (pstate, $2);
- write_exp_elt_opcode (pstate, UNOP_CAST); }
+ { write_exp_elt_opcode (pstate, UNOP_CAST_TYPE); }
+
;
PowExpression:
if (sym.symbol && SYMBOL_CLASS (sym.symbol) != LOC_TYPEDEF)
{
if (symbol_read_needs_frame (sym.symbol))
- {
- if (innermost_block == 0
- || contained_in (sym.block, innermost_block))
- innermost_block = sym.block;
- }
-
+ innermost_block.update (sym);
write_exp_elt_opcode (pstate, OP_VAR_VALUE);
write_exp_elt_block (pstate, sym.block);
write_exp_elt_sym (pstate, sym.symbol);
{
/* 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;
+ innermost_block.update (sym);
write_exp_elt_opcode (pstate, OP_THIS);
write_exp_elt_opcode (pstate, OP_THIS);
write_exp_elt_opcode (pstate, STRUCTOP_PTR);
struct block_symbol sym;
const char *type_name = TYPE_SAFE_NAME (type);
int type_name_len = strlen (type_name);
- char *name;
-
- name = xstrprintf ("%.*s.%.*s",
+ std::string name
+ = string_printf ("%.*s.%.*s",
type_name_len, type_name,
$3.length, $3.ptr);
- make_cleanup (xfree, name);
sym =
- lookup_symbol (name, (const struct block *) NULL,
+ lookup_symbol (name.c_str (),
+ (const struct block *) NULL,
VAR_DOMAIN, NULL);
if (sym.symbol)
{
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 ());
}
/* Check if the qualified name resolves as a member
write_exp_elt_longcst (pstate, (LONGEST)($1.val));
write_exp_elt_opcode (pstate, OP_LONG); }
| FLOAT_LITERAL
- { 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); }
| CHARACTER_LITERAL
{ struct stoken_vector vec;
vec.len = 1;
{
return (TYPE_CODE (type) == TYPE_CODE_STRUCT
|| TYPE_CODE (type) == TYPE_CODE_UNION
+ || TYPE_CODE (type) == TYPE_CODE_MODULE
|| (TYPE_CODE (type) == TYPE_CODE_ENUM
&& TYPE_DECLARED_CLASS (type)));
}
if (parsed_float)
{
- const char *suffix;
- int suffix_len;
char *s, *sp;
/* Strip out all embedded '_' before passing to parse_float. */
*sp = '\0';
len = strlen (s);
- if (! parse_float (s, len, &putithere->typed_val_float.dval, &suffix))
- return ERROR;
-
- suffix_len = s + len - suffix;
-
- if (suffix_len == 0)
+ /* Check suffix for `i' , `fi' or `li' (idouble, ifloat or ireal). */
+ if (len >= 1 && tolower (s[len - 1]) == 'i')
{
- putithere->typed_val_float.type
- = parse_d_type (ps)->builtin_double;
- }
- else if (suffix_len == 1)
- {
- /* Check suffix for `f', `l', or `i' (float, real, or idouble). */
- if (tolower (*suffix) == 'f')
+ if (len >= 2 && tolower (s[len - 2]) == 'f')
{
putithere->typed_val_float.type
- = parse_d_type (ps)->builtin_float;
+ = parse_d_type (ps)->builtin_ifloat;
+ len -= 2;
}
- else if (tolower (*suffix) == 'l')
+ else if (len >= 2 && tolower (s[len - 2]) == 'l')
{
putithere->typed_val_float.type
- = parse_d_type (ps)->builtin_real;
+ = parse_d_type (ps)->builtin_ireal;
+ len -= 2;
}
- else if (tolower (*suffix) == 'i')
+ else
{
putithere->typed_val_float.type
= parse_d_type (ps)->builtin_idouble;
+ len -= 1;
}
- else
- return ERROR;
}
- else if (suffix_len == 2)
+ /* Check suffix for `f' or `l'' (float or real). */
+ else if (len >= 1 && tolower (s[len - 1]) == 'f')
{
- /* Check suffix for `fi' or `li' (ifloat or ireal). */
- if (tolower (suffix[0]) == 'f' && tolower (suffix[1] == 'i'))
- {
- putithere->typed_val_float.type
- = parse_d_type (ps)->builtin_ifloat;
- }
- else if (tolower (suffix[0]) == 'l' && tolower (suffix[1] == 'i'))
- {
- putithere->typed_val_float.type
- = parse_d_type (ps)->builtin_ireal;
- }
- else
- return ERROR;
+ putithere->typed_val_float.type
+ = parse_d_type (ps)->builtin_float;
+ len -= 1;
}
+ else if (len >= 1 && tolower (s[len - 1]) == 'l')
+ {
+ putithere->typed_val_float.type
+ = parse_d_type (ps)->builtin_real;
+ len -= 1;
+ }
+ /* Default type if no suffix. */
else
+ {
+ putithere->typed_val_float.type
+ = parse_d_type (ps)->builtin_double;
+ }
+
+ if (!parse_float (s, len,
+ putithere->typed_val_float.type,
+ putithere->typed_val_float.val))
return ERROR;
return FLOAT_LITERAL;
struct token
{
- char *oper;
+ const char *oper;
int token;
enum exp_opcode opcode;
};
last_was_structop = 1;
goto symbol; /* Nope, must be a symbol. */
}
- /* FALL THRU into number case. */
+ /* FALL THRU. */
case '0':
case '1':
}
/* 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 yylex; this holds symbol names as they are
built up. */
-static struct obstack name_obstack;
+static auto_obstack name_obstack;
/* Classify an IDENTIFIER token. The contents of the token are in `yylval'.
Updates yylval and returns the new token type. BLOCK is the block
int last_to_examine, next_to_examine, checkpoint;
const struct block *search_block;
- if (popping && !VEC_empty (token_and_value, token_fifo))
+ if (popping && !token_fifo.empty ())
goto do_pop;
popping = 0;
/* Read any sequence of alternating "." and identifier tokens into
the token FIFO. */
current.value = yylval;
- VEC_safe_push (token_and_value, token_fifo, ¤t);
+ token_fifo.push_back (current);
last_was_dot = current.token == '.';
while (1)
{
current.token = lex_one_token (pstate);
current.value = yylval;
- VEC_safe_push (token_and_value, token_fifo, ¤t);
+ token_fifo.push_back (current);
if ((last_was_dot && current.token != IDENTIFIER)
|| (!last_was_dot && current.token != '.'))
/* 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;
/* If we are not dealing with a typename, now is the time to find out. */
first try building up a name until we find the qualified module. */
if (current.token == UNKNOWN_NAME)
{
- obstack_free (&name_obstack, obstack_base (&name_obstack));
+ name_obstack.clear ();
obstack_grow (&name_obstack, current.value.sval.ptr,
current.value.sval.length);
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 == IDENTIFIER && last_was_dot)
+ if (next.token == IDENTIFIER && last_was_dot)
{
/* Update the partial name we are constructing. */
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 = (char *) obstack_base (&name_obstack);
yylval.sval.length = obstack_object_size (&name_obstack);
if (current.token == TYPENAME)
{
/* Install it as the first token in the FIFO. */
- VEC_replace (token_and_value, token_fifo, 0, ¤t);
- VEC_block_remove (token_and_value, token_fifo, 1,
- next_to_examine - 1);
+ token_fifo[0] = current;
+ token_fifo.erase (token_fifo.begin () + 1,
+ token_fifo.begin () + next_to_examine);
break;
}
}
- else if (next->token == '.' && !last_was_dot)
+ else if (next.token == '.' && !last_was_dot)
last_was_dot = 1;
else
{
/* Reset our current token back to the start, if we found nothing
this means that we will just jump to do pop. */
- current = *VEC_index (token_and_value, token_fifo, 0);
+ current = token_fifo[0];
next_to_examine = 1;
}
if (current.token != TYPENAME && current.token != '.')
goto do_pop;
- obstack_free (&name_obstack, obstack_base (&name_obstack));
+ name_obstack.clear ();
checkpoint = 0;
if (current.token == '.')
search_block = NULL;
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 == IDENTIFIER && last_was_dot)
+ if (next.token == IDENTIFIER && last_was_dot)
{
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 = (char *) obstack_base (&name_obstack);
yylval.sval.length = obstack_object_size (&name_obstack);
context_type = yylval.tsym.type;
}
- else if (next->token == '.' && !last_was_dot)
+ else if (next.token == '.' && !last_was_dot)
last_was_dot = 1;
else
{
the FIFO, and delete the other constituent tokens. */
if (checkpoint > 0)
{
- 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
d_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 (null_cleanup, NULL);
-
- make_cleanup_restore_integer (&yydebug);
- make_cleanup_clear_parser_state (&pstate);
- yydebug = parser_debug;
+ scoped_restore restore_yydebug = make_scoped_restore (&yydebug,
+ parser_debug);
/* Initialize some state used by the lexer. */
last_was_structop = 0;
saw_name_at_eof = 0;
- VEC_free (token_and_value, token_fifo);
+ token_fifo.clear ();
popping = 0;
- obstack_init (&name_obstack);
- make_cleanup_obstack_free (&name_obstack);
+ name_obstack.clear ();
- result = yyparse ();
- do_cleanups (back_to);
- return result;
+ return yyparse ();
}
-void
-yyerror (char *msg)
+static void
+yyerror (const char *msg)
{
if (prev_lexptr)
lexptr = prev_lexptr;
- error (_("A %s in expression, near `%s'."), (msg ? msg : "error"), lexptr);
+ error (_("A %s in expression, near `%s'."), msg, lexptr);
}
projects / deliverable / binutils-gdb.git / blobdiff