/* YACC parser for Ada expressions, for GDB.
- Copyright (C) 1986, 1989, 1990, 1991, 1993, 1994, 1997, 2000, 2003
- Free Software Foundation, Inc.
+ Copyright (C) 1986, 1989, 1990, 1991, 1993, 1994, 1997, 2000, 2003,
+ 2004 Free Software Foundation, Inc.
This file is part of GDB.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
/* Parse an Ada expression from text in a string,
and return the result as a struct expression pointer.
with include files (<malloc.h> and <stdlib.h> for example) just became
too messy, particularly when such includes can be inserted at random
times by the parser generator. */
-
+
%{
#include "defs.h"
-#include <string.h>
+#include "gdb_string.h"
#include <ctype.h>
#include "expression.h"
#include "value.h"
yacc generated parsers in gdb. These are only the variables
produced by yacc. If other parser generators (bison, byacc, etc) produce
additional global names that conflict at link time, then those parser
- generators need to be fixed instead of adding those names to this list. */
+ generators need to be fixed instead of adding those names to this list. */
-/* NOTE: This is clumsy, especially since BISON and FLEX provide --prefix
+/* NOTE: This is clumsy, especially since BISON and FLEX provide --prefix
options. I presume we are maintaining it to accommodate systems
without BISON? (PNH) */
#define yylval ada_lval
#define yychar ada_char
#define yydebug ada_debug
-#define yypact ada_pact
-#define yyr1 ada_r1
-#define yyr2 ada_r2
-#define yydef ada_def
-#define yychk ada_chk
-#define yypgo ada_pgo
-#define yyact ada_act
+#define yypact ada_pact
+#define yyr1 ada_r1
+#define yyr2 ada_r2
+#define yydef ada_def
+#define yychk ada_chk
+#define yypgo ada_pgo
+#define yyact ada_act
#define yyexca ada_exca
#define yyerrflag ada_errflag
#define yynerrs ada_nerrs
#define YYFPRINTF parser_fprintf
struct name_info {
- struct symbol* sym;
- struct minimal_symbol* msym;
- struct block* block;
+ struct symbol *sym;
+ struct minimal_symbol *msym;
+ struct block *block;
struct stoken stoken;
};
+static struct stoken empty_stoken = { "", 0 };
+
/* If expression is in the context of TYPE'(...), then TYPE, else
- * NULL. */
-static struct type* type_qualifier;
+ * NULL. */
+static struct type *type_qualifier;
int yyparse (void);
static struct stoken string_to_operator (struct stoken);
-static void write_attribute_call0 (enum ada_attribute);
+static void write_int (LONGEST, struct type *);
-static void write_attribute_call1 (enum ada_attribute, LONGEST);
+static void write_object_renaming (struct block *, struct symbol *, int);
-static void write_attribute_calln (enum ada_attribute, int);
+static struct type* write_var_or_type (struct block *, struct stoken);
-static void write_object_renaming (struct block*, struct symbol*);
+static void write_name_assoc (struct stoken);
-static void write_var_from_name (struct block*, struct name_info);
+static void write_exp_op_with_string (enum exp_opcode, struct stoken);
-static LONGEST
-convert_char_literal (struct type*, LONGEST);
-%}
+static struct block *block_lookup (struct block *, char *);
+
+static LONGEST convert_char_literal (struct type *, LONGEST);
+
+static void write_ambiguous_var (struct block *, char *, int);
+
+static struct type *type_int (void);
+
+static struct type *type_long (void);
+
+static struct type *type_long_long (void);
+
+static struct type *type_float (void);
+
+static struct type *type_double (void);
+
+static struct type *type_long_double (void);
+
+static struct type *type_char (void);
+
+static struct type *type_system_address (void);
+
+%}
%union
{
} typed_val_float;
struct type *tval;
struct stoken sval;
- struct name_info ssym;
- int voidval;
struct block *bval;
struct internalvar *ivar;
-
}
-%type <voidval> exp exp1 simple_exp start variable
-%type <tval> type
+%type <lval> positional_list component_groups component_associations
+%type <lval> aggregate_component_list
+%type <tval> var_or_type
%token <typed_val> INT NULL_PTR CHARLIT
%token <typed_val_float> FLOAT
-%token <tval> TYPENAME
-%token <bval> BLOCKNAME
-
-/* Both NAME and TYPENAME tokens represent symbols in the input,
- and both convey their data as strings.
- But a TYPENAME is a string that happens to be defined as a typedef
- or builtin type name (such as int or char)
- and a NAME is any other symbol.
- Contexts where this distinction is not important can use the
- nonterminal "name", which matches either NAME or TYPENAME. */
-
-%token <sval> STRING
-%token <ssym> NAME DOT_ID OBJECT_RENAMING
-%type <bval> block
+%token COLONCOLON
+%token <sval> STRING NAME DOT_ID
+%type <bval> block
%type <lval> arglist tick_arglist
%type <tval> save_qualifier
/* Special type cases, put in to allow the parser to distinguish different
legal basetypes. */
-%token <lval> LAST REGNAME
-
-%token <ivar> INTERNAL_VARIABLE
+%token <sval> SPECIAL_VARIABLE
%nonassoc ASSIGN
%left _AND_ OR XOR THEN ELSE
%left UNARY
%left '*' '/' MOD REM
%right STARSTAR ABS NOT
- /* The following are right-associative only so that reductions at this
- precedence have lower precedence than '.' and '('. The syntax still
- forces a.b.c, e.g., to be LEFT-associated. */
+
+/* Artificial token to give NAME => ... and NAME | priority over reducing
+ NAME to <primary> and to give <primary>' priority over reducing <primary>
+ to <simple_exp>. */
+%nonassoc VAR
+
+%nonassoc ARROW '|'
+
%right TICK_ACCESS TICK_ADDRESS TICK_FIRST TICK_LAST TICK_LENGTH
%right TICK_MAX TICK_MIN TICK_MODULUS
%right TICK_POS TICK_RANGE TICK_SIZE TICK_TAG TICK_VAL
+ /* The following are right-associative only so that reductions at this
+ precedence have lower precedence than '.' and '('. The syntax still
+ forces a.b.c, e.g., to be LEFT-associated. */
%right '.' '(' '[' DOT_ID DOT_ALL
-%token ARROW NEW
+%token NEW OTHERS
\f
%%
start : exp1
- | type { write_exp_elt_opcode (OP_TYPE);
- write_exp_elt_type ($1);
- write_exp_elt_opcode (OP_TYPE); }
;
/* Expressions, including the sequencing operator. */
exp1 : exp
| exp1 ';' exp
{ write_exp_elt_opcode (BINOP_COMMA); }
+ | primary ASSIGN exp /* Extension for convenience */
+ { write_exp_elt_opcode (BINOP_ASSIGN); }
;
/* Expressions, not including the sequencing operator. */
-simple_exp : simple_exp DOT_ALL
+primary : primary DOT_ALL
{ write_exp_elt_opcode (UNOP_IND); }
;
-simple_exp : simple_exp DOT_ID
- { write_exp_elt_opcode (STRUCTOP_STRUCT);
- write_exp_string ($2.stoken);
- write_exp_elt_opcode (STRUCTOP_STRUCT);
- }
+primary : primary DOT_ID
+ { write_exp_op_with_string (STRUCTOP_STRUCT, $2); }
;
-simple_exp : simple_exp '(' arglist ')'
+primary : primary '(' arglist ')'
{
write_exp_elt_opcode (OP_FUNCALL);
write_exp_elt_longcst ($3);
write_exp_elt_opcode (OP_FUNCALL);
}
- ;
-
-simple_exp : type '(' exp ')'
+ | var_or_type '(' arglist ')'
{
- write_exp_elt_opcode (UNOP_CAST);
- write_exp_elt_type ($1);
- write_exp_elt_opcode (UNOP_CAST);
+ if ($1 != NULL)
+ {
+ if ($3 != 1)
+ error (_("Invalid conversion"));
+ write_exp_elt_opcode (UNOP_CAST);
+ write_exp_elt_type ($1);
+ write_exp_elt_opcode (UNOP_CAST);
+ }
+ else
+ {
+ write_exp_elt_opcode (OP_FUNCALL);
+ write_exp_elt_longcst ($3);
+ write_exp_elt_opcode (OP_FUNCALL);
+ }
}
;
-simple_exp : type '\'' save_qualifier { type_qualifier = $1; } '(' exp ')'
+primary : var_or_type '\'' save_qualifier { type_qualifier = $1; }
+ '(' exp ')'
{
- /* write_exp_elt_opcode (UNOP_QUAL); */
- /* FIXME: UNOP_QUAL should be defined in expression.h */
+ if ($1 == NULL)
+ error (_("Type required for qualification"));
+ write_exp_elt_opcode (UNOP_QUAL);
write_exp_elt_type ($1);
- /* write_exp_elt_opcode (UNOP_QUAL); */
- /* FIXME: UNOP_QUAL should be defined in expression.h */
+ write_exp_elt_opcode (UNOP_QUAL);
type_qualifier = $3;
}
;
save_qualifier : { $$ = type_qualifier; }
;
-simple_exp :
- simple_exp '(' exp DOTDOT exp ')'
+primary :
+ primary '(' simple_exp DOTDOT simple_exp ')'
{ write_exp_elt_opcode (TERNOP_SLICE); }
+ | var_or_type '(' simple_exp DOTDOT simple_exp ')'
+ { if ($1 == NULL)
+ write_exp_elt_opcode (TERNOP_SLICE);
+ else
+ error (_("Cannot slice a type"));
+ }
;
-simple_exp : '(' exp1 ')' { }
- ;
-
-simple_exp : variable
+primary : '(' exp1 ')' { }
;
-simple_exp: REGNAME /* GDB extension */
- { write_exp_elt_opcode (OP_REGISTER);
- write_exp_elt_longcst ((LONGEST) $1);
- write_exp_elt_opcode (OP_REGISTER);
- }
- ;
+/* The following rule causes a conflict with the type conversion
+ var_or_type (exp)
+ To get around it, we give '(' higher priority and add bridge rules for
+ var_or_type (exp, exp, ...)
+ var_or_type (exp .. exp)
+ We also have the action for var_or_type(exp) generate a function call
+ when the first symbol does not denote a type. */
-simple_exp: INTERNAL_VARIABLE /* GDB extension */
- { write_exp_elt_opcode (OP_INTERNALVAR);
- write_exp_elt_intern ($1);
- write_exp_elt_opcode (OP_INTERNALVAR);
+primary : var_or_type %prec VAR
+ { if ($1 != NULL)
+ {
+ write_exp_elt_opcode (OP_TYPE);
+ write_exp_elt_type ($1);
+ write_exp_elt_opcode (OP_TYPE);
+ }
}
;
-
-exp : simple_exp
+primary : SPECIAL_VARIABLE /* Various GDB extensions */
+ { write_dollar_variable ($1); }
;
-simple_exp: LAST
- { write_exp_elt_opcode (OP_LAST);
- write_exp_elt_longcst ((LONGEST) $1);
- write_exp_elt_opcode (OP_LAST);
- }
- ;
+primary : aggregate
+ ;
-exp : exp ASSIGN exp /* Extension for convenience */
- { write_exp_elt_opcode (BINOP_ASSIGN); }
+simple_exp : primary
;
-exp : '-' exp %prec UNARY
+simple_exp : '-' simple_exp %prec UNARY
{ write_exp_elt_opcode (UNOP_NEG); }
;
-exp : '+' exp %prec UNARY
+simple_exp : '+' simple_exp %prec UNARY
{ write_exp_elt_opcode (UNOP_PLUS); }
;
-exp : NOT exp %prec UNARY
+simple_exp : NOT simple_exp %prec UNARY
{ write_exp_elt_opcode (UNOP_LOGICAL_NOT); }
;
-exp : ABS exp %prec UNARY
+simple_exp : ABS simple_exp %prec UNARY
{ write_exp_elt_opcode (UNOP_ABS); }
;
arglist : exp
{ $$ = 1; }
- | any_name ARROW exp
+ | NAME ARROW exp
{ $$ = 1; }
| arglist ',' exp
{ $$ = $1 + 1; }
- | arglist ',' any_name ARROW exp
+ | arglist ',' NAME ARROW exp
{ $$ = $1 + 1; }
;
-exp : '{' type '}' exp %prec '.'
+simple_exp : '{' var_or_type '}' simple_exp %prec '.'
/* GDB extension */
- { write_exp_elt_opcode (UNOP_MEMVAL);
+ {
+ if ($2 == NULL)
+ error (_("Type required within braces in coercion"));
+ write_exp_elt_opcode (UNOP_MEMVAL);
write_exp_elt_type ($2);
- write_exp_elt_opcode (UNOP_MEMVAL);
+ write_exp_elt_opcode (UNOP_MEMVAL);
}
;
/* Binary operators in order of decreasing precedence. */
-exp : exp STARSTAR exp
+simple_exp : simple_exp STARSTAR simple_exp
{ write_exp_elt_opcode (BINOP_EXP); }
;
-exp : exp '*' exp
+simple_exp : simple_exp '*' simple_exp
{ write_exp_elt_opcode (BINOP_MUL); }
;
-exp : exp '/' exp
+simple_exp : simple_exp '/' simple_exp
{ write_exp_elt_opcode (BINOP_DIV); }
;
-exp : exp REM exp /* May need to be fixed to give correct Ada REM */
+simple_exp : simple_exp REM simple_exp /* May need to be fixed to give correct Ada REM */
{ write_exp_elt_opcode (BINOP_REM); }
;
-exp : exp MOD exp
+simple_exp : simple_exp MOD simple_exp
{ write_exp_elt_opcode (BINOP_MOD); }
;
-exp : exp '@' exp /* GDB extension */
+simple_exp : simple_exp '@' simple_exp /* GDB extension */
{ write_exp_elt_opcode (BINOP_REPEAT); }
;
-exp : exp '+' exp
+simple_exp : simple_exp '+' simple_exp
{ write_exp_elt_opcode (BINOP_ADD); }
;
-exp : exp '&' exp
+simple_exp : simple_exp '&' simple_exp
{ write_exp_elt_opcode (BINOP_CONCAT); }
;
-exp : exp '-' exp
+simple_exp : simple_exp '-' simple_exp
{ write_exp_elt_opcode (BINOP_SUB); }
;
-exp : exp '=' exp
+relation : simple_exp
+ ;
+
+relation : simple_exp '=' simple_exp
{ write_exp_elt_opcode (BINOP_EQUAL); }
;
-exp : exp NOTEQUAL exp
+relation : simple_exp NOTEQUAL simple_exp
{ write_exp_elt_opcode (BINOP_NOTEQUAL); }
;
-exp : exp LEQ exp
+relation : simple_exp LEQ simple_exp
{ write_exp_elt_opcode (BINOP_LEQ); }
;
-exp : exp IN exp DOTDOT exp
- { /*write_exp_elt_opcode (TERNOP_MBR); */ }
- /* FIXME: TERNOP_MBR should be defined in
- expression.h */
- | exp IN exp TICK_RANGE tick_arglist
- { /*write_exp_elt_opcode (BINOP_MBR); */
- /* FIXME: BINOP_MBR should be defined in expression.h */
+relation : simple_exp IN simple_exp DOTDOT simple_exp
+ { write_exp_elt_opcode (TERNOP_IN_RANGE); }
+ | simple_exp IN primary TICK_RANGE tick_arglist
+ { write_exp_elt_opcode (BINOP_IN_BOUNDS);
write_exp_elt_longcst ((LONGEST) $5);
- /*write_exp_elt_opcode (BINOP_MBR); */
+ write_exp_elt_opcode (BINOP_IN_BOUNDS);
}
- | exp IN TYPENAME %prec TICK_ACCESS
- { /*write_exp_elt_opcode (UNOP_MBR); */
- /* FIXME: UNOP_QUAL should be defined in expression.h */
+ | simple_exp IN var_or_type %prec TICK_ACCESS
+ {
+ if ($3 == NULL)
+ error (_("Right operand of 'in' must be type"));
+ write_exp_elt_opcode (UNOP_IN_RANGE);
write_exp_elt_type ($3);
- /* write_exp_elt_opcode (UNOP_MBR); */
- /* FIXME: UNOP_MBR should be defined in expression.h */
+ write_exp_elt_opcode (UNOP_IN_RANGE);
}
- | exp NOT IN exp DOTDOT exp
- { /*write_exp_elt_opcode (TERNOP_MBR); */
- /* FIXME: TERNOP_MBR should be defined in expression.h */
- write_exp_elt_opcode (UNOP_LOGICAL_NOT);
+ | simple_exp NOT IN simple_exp DOTDOT simple_exp
+ { write_exp_elt_opcode (TERNOP_IN_RANGE);
+ write_exp_elt_opcode (UNOP_LOGICAL_NOT);
}
- | exp NOT IN exp TICK_RANGE tick_arglist
- { /* write_exp_elt_opcode (BINOP_MBR); */
- /* FIXME: BINOP_MBR should be defined in expression.h */
+ | simple_exp NOT IN primary TICK_RANGE tick_arglist
+ { write_exp_elt_opcode (BINOP_IN_BOUNDS);
write_exp_elt_longcst ((LONGEST) $6);
- /*write_exp_elt_opcode (BINOP_MBR);*/
- /* FIXME: BINOP_MBR should be defined in expression.h */
- write_exp_elt_opcode (UNOP_LOGICAL_NOT);
+ write_exp_elt_opcode (BINOP_IN_BOUNDS);
+ write_exp_elt_opcode (UNOP_LOGICAL_NOT);
}
- | exp NOT IN TYPENAME %prec TICK_ACCESS
- { /*write_exp_elt_opcode (UNOP_MBR);*/
- /* FIXME: UNOP_MBR should be defined in expression.h */
+ | simple_exp NOT IN var_or_type %prec TICK_ACCESS
+ {
+ if ($4 == NULL)
+ error (_("Right operand of 'in' must be type"));
+ write_exp_elt_opcode (UNOP_IN_RANGE);
write_exp_elt_type ($4);
- /* write_exp_elt_opcode (UNOP_MBR);*/
- /* FIXME: UNOP_MBR should be defined in expression.h */
- write_exp_elt_opcode (UNOP_LOGICAL_NOT);
+ write_exp_elt_opcode (UNOP_IN_RANGE);
+ write_exp_elt_opcode (UNOP_LOGICAL_NOT);
}
;
-exp : exp GEQ exp
+relation : simple_exp GEQ simple_exp
{ write_exp_elt_opcode (BINOP_GEQ); }
;
-exp : exp '<' exp
+relation : simple_exp '<' simple_exp
{ write_exp_elt_opcode (BINOP_LESS); }
;
-exp : exp '>' exp
+relation : simple_exp '>' simple_exp
{ write_exp_elt_opcode (BINOP_GTR); }
;
-exp : exp _AND_ exp /* Fix for Ada elementwise AND. */
+exp : relation
+ | and_exp
+ | and_then_exp
+ | or_exp
+ | or_else_exp
+ | xor_exp
+ ;
+
+and_exp :
+ relation _AND_ relation
{ write_exp_elt_opcode (BINOP_BITWISE_AND); }
- ;
+ | and_exp _AND_ relation
+ { write_exp_elt_opcode (BINOP_BITWISE_AND); }
+ ;
-exp : exp _AND_ THEN exp %prec _AND_
+and_then_exp :
+ relation _AND_ THEN relation
+ { write_exp_elt_opcode (BINOP_LOGICAL_AND); }
+ | and_then_exp _AND_ THEN relation
{ write_exp_elt_opcode (BINOP_LOGICAL_AND); }
;
-exp : exp OR exp /* Fix for Ada elementwise OR */
+or_exp :
+ relation OR relation
{ write_exp_elt_opcode (BINOP_BITWISE_IOR); }
- ;
+ | or_exp OR relation
+ { write_exp_elt_opcode (BINOP_BITWISE_IOR); }
+ ;
-exp : exp OR ELSE exp
+or_else_exp :
+ relation OR ELSE relation
+ { write_exp_elt_opcode (BINOP_LOGICAL_OR); }
+ | or_else_exp OR ELSE relation
{ write_exp_elt_opcode (BINOP_LOGICAL_OR); }
;
-exp : exp XOR exp /* Fix for Ada elementwise XOR */
+xor_exp : relation XOR relation
+ { write_exp_elt_opcode (BINOP_BITWISE_XOR); }
+ | xor_exp XOR relation
{ write_exp_elt_opcode (BINOP_BITWISE_XOR); }
;
-simple_exp : simple_exp TICK_ACCESS
+/* Primaries can denote types (OP_TYPE). In cases such as
+ primary TICK_ADDRESS, where a type would be invalid, it will be
+ caught when evaluate_subexp in ada-lang.c tries to evaluate the
+ primary, expecting a value. Precedence rules resolve the ambiguity
+ in NAME TICK_ACCESS in favor of shifting to form a var_or_type. A
+ construct such as aType'access'access will again cause an error when
+ aType'access evaluates to a type that evaluate_subexp attempts to
+ evaluate. */
+primary : primary TICK_ACCESS
{ write_exp_elt_opcode (UNOP_ADDR); }
- | simple_exp TICK_ADDRESS
+ | primary TICK_ADDRESS
{ write_exp_elt_opcode (UNOP_ADDR);
write_exp_elt_opcode (UNOP_CAST);
- write_exp_elt_type (builtin_type_ada_system_address);
+ write_exp_elt_type (type_system_address ());
write_exp_elt_opcode (UNOP_CAST);
}
- | simple_exp TICK_FIRST tick_arglist
- { write_attribute_call1 (ATR_FIRST, $3); }
- | simple_exp TICK_LAST tick_arglist
- { write_attribute_call1 (ATR_LAST, $3); }
- | simple_exp TICK_LENGTH tick_arglist
- { write_attribute_call1 (ATR_LENGTH, $3); }
- | simple_exp TICK_SIZE
- { write_attribute_call0 (ATR_SIZE); }
- | simple_exp TICK_TAG
- { write_attribute_call0 (ATR_TAG); }
+ | primary TICK_FIRST tick_arglist
+ { write_int ($3, type_int ());
+ write_exp_elt_opcode (OP_ATR_FIRST); }
+ | primary TICK_LAST tick_arglist
+ { write_int ($3, type_int ());
+ write_exp_elt_opcode (OP_ATR_LAST); }
+ | primary TICK_LENGTH tick_arglist
+ { write_int ($3, type_int ());
+ write_exp_elt_opcode (OP_ATR_LENGTH); }
+ | primary TICK_SIZE
+ { write_exp_elt_opcode (OP_ATR_SIZE); }
+ | primary TICK_TAG
+ { write_exp_elt_opcode (OP_ATR_TAG); }
| opt_type_prefix TICK_MIN '(' exp ',' exp ')'
- { write_attribute_calln (ATR_MIN, 2); }
+ { write_exp_elt_opcode (OP_ATR_MIN); }
| opt_type_prefix TICK_MAX '(' exp ',' exp ')'
- { write_attribute_calln (ATR_MAX, 2); }
+ { write_exp_elt_opcode (OP_ATR_MAX); }
| opt_type_prefix TICK_POS '(' exp ')'
- { write_attribute_calln (ATR_POS, 1); }
- | type_prefix TICK_FIRST tick_arglist
- { write_attribute_call1 (ATR_FIRST, $3); }
- | type_prefix TICK_LAST tick_arglist
- { write_attribute_call1 (ATR_LAST, $3); }
- | type_prefix TICK_LENGTH tick_arglist
- { write_attribute_call1 (ATR_LENGTH, $3); }
+ { write_exp_elt_opcode (OP_ATR_POS); }
| type_prefix TICK_VAL '(' exp ')'
- { write_attribute_calln (ATR_VAL, 1); }
- | type_prefix TICK_MODULUS
- { write_attribute_call0 (ATR_MODULUS); }
+ { write_exp_elt_opcode (OP_ATR_VAL); }
+ | type_prefix TICK_MODULUS
+ { write_exp_elt_opcode (OP_ATR_MODULUS); }
;
tick_arglist : %prec '('
;
type_prefix :
- TYPENAME
- { write_exp_elt_opcode (OP_TYPE);
+ var_or_type
+ {
+ if ($1 == NULL)
+ error (_("Prefix must be type"));
+ write_exp_elt_opcode (OP_TYPE);
write_exp_elt_type ($1);
write_exp_elt_opcode (OP_TYPE); }
;
opt_type_prefix :
type_prefix
- | /* EMPTY */
+ | /* EMPTY */
{ write_exp_elt_opcode (OP_TYPE);
write_exp_elt_type (builtin_type_void);
write_exp_elt_opcode (OP_TYPE); }
;
-
-exp : INT
- { write_exp_elt_opcode (OP_LONG);
- write_exp_elt_type ($1.type);
- write_exp_elt_longcst ((LONGEST)($1.val));
- write_exp_elt_opcode (OP_LONG);
- }
+
+primary : INT
+ { write_int ((LONGEST) $1.val, $1.type); }
;
-exp : CHARLIT
- { write_exp_elt_opcode (OP_LONG);
- if (type_qualifier == NULL)
- write_exp_elt_type ($1.type);
- else
- write_exp_elt_type (type_qualifier);
- write_exp_elt_longcst
- (convert_char_literal (type_qualifier, $1.val));
- write_exp_elt_opcode (OP_LONG);
- }
+primary : CHARLIT
+ { write_int (convert_char_literal (type_qualifier, $1.val),
+ (type_qualifier == NULL)
+ ? $1.type : type_qualifier);
+ }
;
-
-exp : FLOAT
+
+primary : FLOAT
{ write_exp_elt_opcode (OP_DOUBLE);
write_exp_elt_type ($1.type);
write_exp_elt_dblcst ($1.dval);
- write_exp_elt_opcode (OP_DOUBLE);
+ write_exp_elt_opcode (OP_DOUBLE);
}
;
-exp : NULL_PTR
- { write_exp_elt_opcode (OP_LONG);
- write_exp_elt_type (builtin_type_int);
- write_exp_elt_longcst ((LONGEST)(0));
- write_exp_elt_opcode (OP_LONG);
- }
- ;
-
-exp : STRING
- { /* Ada strings are converted into array constants
- a lower bound of 1. Thus, the array upper bound
- is the string length. */
- char *sp = $1.ptr; int count;
- if ($1.length == 0)
- { /* One dummy character for the type */
- write_exp_elt_opcode (OP_LONG);
- write_exp_elt_type (builtin_type_ada_char);
- write_exp_elt_longcst ((LONGEST)(0));
- write_exp_elt_opcode (OP_LONG);
- }
- for (count = $1.length; count > 0; count -= 1)
- {
- write_exp_elt_opcode (OP_LONG);
- write_exp_elt_type (builtin_type_ada_char);
- write_exp_elt_longcst ((LONGEST)(*sp));
- sp += 1;
- write_exp_elt_opcode (OP_LONG);
- }
- write_exp_elt_opcode (OP_ARRAY);
- write_exp_elt_longcst ((LONGEST) 1);
- write_exp_elt_longcst ((LONGEST) ($1.length));
- write_exp_elt_opcode (OP_ARRAY);
- }
+primary : NULL_PTR
+ { write_int (0, type_int ()); }
;
-exp : NEW TYPENAME
- { error ("NEW not implemented."); }
+primary : STRING
+ {
+ write_exp_op_with_string (OP_STRING, $1);
+ }
;
-variable: NAME { write_var_from_name (NULL, $1); }
- | block NAME /* GDB extension */
- { write_var_from_name ($1, $2); }
- | OBJECT_RENAMING { write_object_renaming (NULL, $1.sym); }
- | block OBJECT_RENAMING
- { write_object_renaming ($1, $2.sym); }
+primary : NEW NAME
+ { error (_("NEW not implemented.")); }
;
-any_name : NAME { }
- | TYPENAME { }
- | OBJECT_RENAMING { }
- ;
+var_or_type: NAME %prec VAR
+ { $$ = write_var_or_type (NULL, $1); }
+ | block NAME %prec VAR
+ { $$ = write_var_or_type ($1, $2); }
+ | NAME TICK_ACCESS
+ {
+ $$ = write_var_or_type (NULL, $1);
+ if ($$ == NULL)
+ write_exp_elt_opcode (UNOP_ADDR);
+ else
+ $$ = lookup_pointer_type ($$);
+ }
+ | block NAME TICK_ACCESS
+ {
+ $$ = write_var_or_type ($1, $2);
+ if ($$ == NULL)
+ write_exp_elt_opcode (UNOP_ADDR);
+ else
+ $$ = lookup_pointer_type ($$);
+ }
+ ;
-block : BLOCKNAME /* GDB extension */
- { $$ = $1; }
- | block BLOCKNAME /* GDB extension */
- { $$ = $2; }
+/* GDB extension */
+block : NAME COLONCOLON
+ { $$ = block_lookup (NULL, $1.ptr); }
+ | block NAME COLONCOLON
+ { $$ = block_lookup ($1, $2.ptr); }
;
+aggregate :
+ '(' aggregate_component_list ')'
+ {
+ write_exp_elt_opcode (OP_AGGREGATE);
+ write_exp_elt_longcst ($2);
+ write_exp_elt_opcode (OP_AGGREGATE);
+ }
+ ;
-type : TYPENAME { $$ = $1; }
- | block TYPENAME { $$ = $2; }
- | TYPENAME TICK_ACCESS
- { $$ = lookup_pointer_type ($1); }
- | block TYPENAME TICK_ACCESS
- { $$ = lookup_pointer_type ($2); }
- ;
+aggregate_component_list :
+ component_groups { $$ = $1; }
+ | positional_list exp
+ { write_exp_elt_opcode (OP_POSITIONAL);
+ write_exp_elt_longcst ($1);
+ write_exp_elt_opcode (OP_POSITIONAL);
+ $$ = $1 + 1;
+ }
+ | positional_list component_groups
+ { $$ = $1 + $2; }
+ ;
+
+positional_list :
+ exp ','
+ { write_exp_elt_opcode (OP_POSITIONAL);
+ write_exp_elt_longcst (0);
+ write_exp_elt_opcode (OP_POSITIONAL);
+ $$ = 1;
+ }
+ | positional_list exp ','
+ { write_exp_elt_opcode (OP_POSITIONAL);
+ write_exp_elt_longcst ($1);
+ write_exp_elt_opcode (OP_POSITIONAL);
+ $$ = $1 + 1;
+ }
+ ;
+
+component_groups:
+ others { $$ = 1; }
+ | component_group { $$ = 1; }
+ | component_group ',' component_groups
+ { $$ = $3 + 1; }
+ ;
+
+others : OTHERS ARROW exp
+ { write_exp_elt_opcode (OP_OTHERS); }
+ ;
+
+component_group :
+ component_associations
+ {
+ write_exp_elt_opcode (OP_CHOICES);
+ write_exp_elt_longcst ($1);
+ write_exp_elt_opcode (OP_CHOICES);
+ }
+ ;
+
+/* We use this somewhat obscure definition in order to handle NAME => and
+ NAME | differently from exp => and exp |. ARROW and '|' have a precedence
+ above that of the reduction of NAME to var_or_type. By delaying
+ decisions until after the => or '|', we convert the ambiguity to a
+ resolved shift/reduce conflict. */
+component_associations :
+ NAME ARROW
+ { write_name_assoc ($1); }
+ exp { $$ = 1; }
+ | simple_exp ARROW exp
+ { $$ = 1; }
+ | simple_exp DOTDOT simple_exp ARROW
+ { write_exp_elt_opcode (OP_DISCRETE_RANGE);
+ write_exp_op_with_string (OP_NAME, empty_stoken);
+ }
+ exp { $$ = 1; }
+ | NAME '|'
+ { write_name_assoc ($1); }
+ component_associations { $$ = $4 + 1; }
+ | simple_exp '|'
+ component_associations { $$ = $3 + 1; }
+ | simple_exp DOTDOT simple_exp '|'
+ { write_exp_elt_opcode (OP_DISCRETE_RANGE); }
+ component_associations { $$ = $6 + 1; }
+ ;
/* Some extensions borrowed from C, for the benefit of those who find they
- can't get used to Ada notation in GDB. */
+ can't get used to Ada notation in GDB. */
-exp : '*' exp %prec '.'
+primary : '*' primary %prec '.'
{ write_exp_elt_opcode (UNOP_IND); }
- | '&' exp %prec '.'
+ | '&' primary %prec '.'
{ write_exp_elt_opcode (UNOP_ADDR); }
- | exp '[' exp ']'
+ | primary '[' exp ']'
{ write_exp_elt_opcode (BINOP_SUBSCRIPT); }
;
#define yytext ada_yytext
#define yywrap ada_yywrap
+static struct obstack temp_parse_space;
+
/* The following kludge was found necessary to prevent conflicts between */
/* defs.h and non-standard stdlib.h files. */
#define qsort __qsort__dummy
#include "ada-lex.c"
int
-ada_parse ()
+ada_parse (void)
{
- lexer_init (yyin); /* (Re-)initialize lexer. */
- left_block_context = NULL;
+ lexer_init (yyin); /* (Re-)initialize lexer. */
type_qualifier = NULL;
-
+ obstack_free (&temp_parse_space, NULL);
+ obstack_init (&temp_parse_space);
+
return _ada_parse ();
}
void
-yyerror (msg)
- char *msg;
+yyerror (char *msg)
{
- error ("A %s in expression, near `%s'.", (msg ? msg : "error"), lexptr);
+ error (_("Error in expression, near `%s'."), lexptr);
}
-/* The operator name corresponding to operator symbol STRING (adds
+/* The operator name corresponding to operator symbol STRING (adds
quotes and maps to lower-case). Destroys the previous contents of
the array pointed to by STRING.ptr. Error if STRING does not match
a valid Ada operator. Assumes that STRING.ptr points to a
null-terminated string and that, if STRING is a valid operator
symbol, the array pointed to by STRING.ptr contains at least
- STRING.length+3 characters. */
+ STRING.length+3 characters. */
static struct stoken
-string_to_operator (string)
- struct stoken string;
+string_to_operator (struct stoken string)
{
int i;
- for (i = 0; ada_opname_table[i].mangled != NULL; i += 1)
+ for (i = 0; ada_opname_table[i].encoded != NULL; i += 1)
{
- if (string.length == strlen (ada_opname_table[i].demangled)-2
- && strncasecmp (string.ptr, ada_opname_table[i].demangled+1,
+ if (string.length == strlen (ada_opname_table[i].decoded)-2
+ && strncasecmp (string.ptr, ada_opname_table[i].decoded+1,
string.length) == 0)
{
- strncpy (string.ptr, ada_opname_table[i].demangled,
+ strncpy (string.ptr, ada_opname_table[i].decoded,
string.length+2);
string.length += 2;
return string;
}
}
- error ("Invalid operator symbol `%s'", string.ptr);
+ error (_("Invalid operator symbol `%s'"), string.ptr);
}
/* Emit expression to access an instance of SYM, in block BLOCK (if
- * non-NULL), and with :: qualification ORIG_LEFT_CONTEXT. */
+ * non-NULL), and with :: qualification ORIG_LEFT_CONTEXT. */
static void
-write_var_from_sym (orig_left_context, block, sym)
- struct block* orig_left_context;
- struct block* block;
- struct symbol* sym;
+write_var_from_sym (struct block *orig_left_context,
+ struct block *block,
+ struct symbol *sym)
{
if (orig_left_context == NULL && symbol_read_needs_frame (sym))
{
- if (innermost_block == 0 ||
- contained_in (block, innermost_block))
+ if (innermost_block == 0
+ || contained_in (block, innermost_block))
innermost_block = block;
}
write_exp_elt_opcode (OP_VAR_VALUE);
- /* We want to use the selected frame, not another more inner frame
- which happens to be in the same block */
- write_exp_elt_block (NULL);
+ write_exp_elt_block (block);
write_exp_elt_sym (sym);
write_exp_elt_opcode (OP_VAR_VALUE);
}
-/* Emit expression to access an instance of NAME. */
-static void
-write_var_from_name (orig_left_context, name)
- struct block* orig_left_context;
- struct name_info name;
-{
- if (name.msym != NULL)
- {
- write_exp_msymbol (name.msym,
- lookup_function_type (builtin_type_int),
- builtin_type_int);
- }
- else if (name.sym == NULL)
- {
- /* Multiple matches: record name and starting block for later
- resolution by ada_resolve. */
- /* write_exp_elt_opcode (OP_UNRESOLVED_VALUE); */
- /* FIXME: OP_UNRESOLVED_VALUE should be defined in expression.h */
- write_exp_elt_block (name.block);
- /* write_exp_elt_name (name.stoken.ptr); */
- /* FIXME: write_exp_elt_name should be defined in defs.h, located in parse.c */
- /* write_exp_elt_opcode (OP_UNRESOLVED_VALUE); */
- /* FIXME: OP_UNRESOLVED_VALUE should be defined in expression.h */
- }
- else
- write_var_from_sym (orig_left_context, name.block, name.sym);
-}
-
-/* Write a call on parameterless attribute ATR. */
-
-static void
-write_attribute_call0 (atr)
- enum ada_attribute atr;
-{
- /* write_exp_elt_opcode (OP_ATTRIBUTE); */
- /* FIXME: OP_ATTRIBUTE should be defined in expression.h */
- write_exp_elt_longcst ((LONGEST) 0);
- write_exp_elt_longcst ((LONGEST) atr);
- /* write_exp_elt_opcode (OP_ATTRIBUTE); */
- /* FIXME: OP_ATTRIBUTE should be defined in expression.h */
-}
-
-/* Write a call on an attribute ATR with one constant integer
- * parameter. */
+/* Write integer constant ARG of type TYPE. */
static void
-write_attribute_call1 (atr, arg)
- enum ada_attribute atr;
- LONGEST arg;
+write_int (LONGEST arg, struct type *type)
{
write_exp_elt_opcode (OP_LONG);
- write_exp_elt_type (builtin_type_int);
+ write_exp_elt_type (type);
write_exp_elt_longcst (arg);
write_exp_elt_opcode (OP_LONG);
- /*write_exp_elt_opcode (OP_ATTRIBUTE);*/
- /* FIXME: OP_ATTRIBUTE should be defined in expression.h */
- write_exp_elt_longcst ((LONGEST) 1);
- write_exp_elt_longcst ((LONGEST) atr);
- /*write_exp_elt_opcode (OP_ATTRIBUTE);*/
- /* FIXME: OP_ATTRIBUTE should be defined in expression.h */
-}
-
-/* Write a call on an attribute ATR with N parameters, whose code must have
- * been generated previously. */
+}
+/* Write an OPCODE, string, OPCODE sequence to the current expression. */
static void
-write_attribute_calln (atr, n)
- enum ada_attribute atr;
- int n;
+write_exp_op_with_string (enum exp_opcode opcode, struct stoken token)
{
- /*write_exp_elt_opcode (OP_ATTRIBUTE);*/
- /* FIXME: OP_ATTRIBUTE should be defined in expression.h */
- write_exp_elt_longcst ((LONGEST) n);
- write_exp_elt_longcst ((LONGEST) atr);
- /* write_exp_elt_opcode (OP_ATTRIBUTE);*/
- /* FIXME: OP_ATTRIBUTE should be defined in expression.h */
-}
-
-/* Emit expression corresponding to the renamed object designated by
+ write_exp_elt_opcode (opcode);
+ write_exp_string (token);
+ write_exp_elt_opcode (opcode);
+}
+
+/* Emit expression corresponding to the renamed object designated by
* the type RENAMING, which must be the referent of an object renaming
- * type, in the context of ORIG_LEFT_CONTEXT (?). */
+ * type, in the context of ORIG_LEFT_CONTEXT. MAX_DEPTH is the maximum
+ * number of cascaded renamings to allow. */
static void
-write_object_renaming (orig_left_context, renaming)
- struct block* orig_left_context;
- struct symbol* renaming;
+write_object_renaming (struct block *orig_left_context,
+ struct symbol *renaming, int max_depth)
{
- const char* qualification = DEPRECATED_SYMBOL_NAME (renaming);
- const char* simple_tail;
- const char* expr = TYPE_FIELD_NAME (SYMBOL_TYPE (renaming), 0);
- const char* suffix;
- char* name;
- struct symbol* sym;
+ const char *qualification = SYMBOL_LINKAGE_NAME (renaming);
+ const char *simple_tail;
+ const char *expr = TYPE_FIELD_NAME (SYMBOL_TYPE (renaming), 0);
+ const char *suffix;
+ char *name;
+ struct symbol *sym;
enum { SIMPLE_INDEX, LOWER_BOUND, UPPER_BOUND } slice_state;
+ if (max_depth <= 0)
+ error (_("Could not find renamed symbol"));
+
/* if orig_left_context is null, then use the currently selected
- block, otherwise we might fail our symbol lookup below */
+ block; otherwise we might fail our symbol lookup below. */
if (orig_left_context == NULL)
orig_left_context = get_selected_block (NULL);
- for (simple_tail = qualification + strlen (qualification);
+ for (simple_tail = qualification + strlen (qualification);
simple_tail != qualification; simple_tail -= 1)
{
if (*simple_tail == '.')
{
simple_tail += 1;
break;
- }
- else if (DEPRECATED_STREQN (simple_tail, "__", 2))
+ }
+ else if (strncmp (simple_tail, "__", 2) == 0)
{
simple_tail += 2;
break;
if (suffix == NULL)
goto BadEncoding;
- name = (char*) malloc (suffix - expr + 1);
- /* add_name_string_cleanup (name); */
- /* FIXME: add_name_string_cleanup should be defined in
- parser-defs.h, implemented in parse.c */
+ name = (char *) obstack_alloc (&temp_parse_space, suffix - expr + 1);
strncpy (name, expr, suffix-expr);
name[suffix-expr] = '\000';
sym = lookup_symbol (name, orig_left_context, VAR_DOMAIN, 0, NULL);
- /* if (sym == NULL)
- error ("Could not find renamed variable: %s", ada_demangle (name));
- */
- /* FIXME: ada_demangle should be defined in defs.h, implemented in ada-lang.c */
- write_var_from_sym (orig_left_context, block_found, sym);
+ if (sym == NULL)
+ error (_("Could not find renamed variable: %s"), ada_decode (name));
+ if (ada_is_object_renaming (sym))
+ write_object_renaming (orig_left_context, sym, max_depth-1);
+ else
+ write_var_from_sym (orig_left_context, block_found, sym);
suffix += 5;
slice_state = SIMPLE_INDEX;
- while (*suffix == 'X')
+ while (*suffix == 'X')
{
suffix += 1;
switch (*suffix) {
+ case 'A':
+ suffix += 1;
+ write_exp_elt_opcode (UNOP_IND);
+ break;
case 'L':
slice_state = LOWER_BOUND;
case 'S':
suffix += 1;
- if (isdigit (*suffix))
+ if (isdigit (*suffix))
{
- char* next;
+ char *next;
long val = strtol (suffix, &next, 10);
- if (next == suffix)
+ if (next == suffix)
goto BadEncoding;
suffix = next;
write_exp_elt_opcode (OP_LONG);
- write_exp_elt_type (builtin_type_ada_int);
+ write_exp_elt_type (type_int ());
write_exp_elt_longcst ((LONGEST) val);
write_exp_elt_opcode (OP_LONG);
- }
+ }
else
{
- const char* end;
- char* index_name;
+ const char *end;
+ char *index_name;
int index_len;
- struct symbol* index_sym;
+ struct symbol *index_sym;
end = strchr (suffix, 'X');
- if (end == NULL)
+ if (end == NULL)
end = suffix + strlen (suffix);
-
+
index_len = simple_tail - qualification + 2 + (suffix - end) + 1;
- index_name = (char*) malloc (index_len);
+ index_name
+ = (char *) obstack_alloc (&temp_parse_space, index_len);
memset (index_name, '\000', index_len);
- /* add_name_string_cleanup (index_name);*/
- /* FIXME: add_name_string_cleanup should be defined in
- parser-defs.h, implemented in parse.c */
strncpy (index_name, qualification, simple_tail - qualification);
index_name[simple_tail - qualification] = '\000';
strncat (index_name, suffix, suffix-end);
suffix = end;
- index_sym =
+ index_sym =
lookup_symbol (index_name, NULL, VAR_DOMAIN, 0, NULL);
if (index_sym == NULL)
- error ("Could not find %s", index_name);
+ error (_("Could not find %s"), index_name);
write_var_from_sym (NULL, block_found, sym);
}
if (slice_state == SIMPLE_INDEX)
- {
+ {
write_exp_elt_opcode (OP_FUNCALL);
write_exp_elt_longcst ((LONGEST) 1);
write_exp_elt_opcode (OP_FUNCALL);
case 'R':
{
struct stoken field_name;
- const char* end;
+ const char *end;
suffix += 1;
-
+
if (slice_state != SIMPLE_INDEX)
goto BadEncoding;
end = strchr (suffix, 'X');
- if (end == NULL)
+ if (end == NULL)
end = suffix + strlen (suffix);
field_name.length = end - suffix;
- field_name.ptr = (char*) malloc (end - suffix + 1);
+ field_name.ptr = xmalloc (end - suffix + 1);
strncpy (field_name.ptr, suffix, end - suffix);
field_name.ptr[end - suffix] = '\000';
suffix = end;
- write_exp_elt_opcode (STRUCTOP_STRUCT);
- write_exp_string (field_name);
- write_exp_elt_opcode (STRUCTOP_STRUCT);
+ write_exp_op_with_string (STRUCTOP_STRUCT, field_name);
break;
}
-
+
default:
goto BadEncoding;
}
return;
BadEncoding:
- error ("Internal error in encoding of renaming declaration: %s",
- DEPRECATED_SYMBOL_NAME (renaming));
+ error (_("Internal error in encoding of renaming declaration: %s"),
+ SYMBOL_LINKAGE_NAME (renaming));
+}
+
+static struct block*
+block_lookup (struct block *context, char *raw_name)
+{
+ char *name;
+ struct ada_symbol_info *syms;
+ int nsyms;
+ struct symtab *symtab;
+
+ if (raw_name[0] == '\'')
+ {
+ raw_name += 1;
+ name = raw_name;
+ }
+ else
+ name = ada_encode (raw_name);
+
+ nsyms = ada_lookup_symbol_list (name, context, VAR_DOMAIN, &syms);
+ if (context == NULL &&
+ (nsyms == 0 || SYMBOL_CLASS (syms[0].sym) != LOC_BLOCK))
+ symtab = lookup_symtab (name);
+ else
+ symtab = NULL;
+
+ if (symtab != NULL)
+ return BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), STATIC_BLOCK);
+ else if (nsyms == 0 || SYMBOL_CLASS (syms[0].sym) != LOC_BLOCK)
+ {
+ if (context == NULL)
+ error (_("No file or function \"%s\"."), raw_name);
+ else
+ error (_("No function \"%s\" in specified context."), raw_name);
+ }
+ else
+ {
+ if (nsyms > 1)
+ warning (_("Function name \"%s\" ambiguous here"), raw_name);
+ return SYMBOL_BLOCK_VALUE (syms[0].sym);
+ }
+}
+
+static struct symbol*
+select_possible_type_sym (struct ada_symbol_info *syms, int nsyms)
+{
+ int i;
+ int preferred_index;
+ struct type *preferred_type;
+
+ preferred_index = -1; preferred_type = NULL;
+ for (i = 0; i < nsyms; i += 1)
+ switch (SYMBOL_CLASS (syms[i].sym))
+ {
+ case LOC_TYPEDEF:
+ if (ada_prefer_type (SYMBOL_TYPE (syms[i].sym), preferred_type))
+ {
+ preferred_index = i;
+ preferred_type = SYMBOL_TYPE (syms[i].sym);
+ }
+ break;
+ case LOC_REGISTER:
+ case LOC_ARG:
+ case LOC_REF_ARG:
+ case LOC_REGPARM:
+ case LOC_REGPARM_ADDR:
+ case LOC_LOCAL:
+ case LOC_LOCAL_ARG:
+ case LOC_BASEREG:
+ case LOC_BASEREG_ARG:
+ case LOC_COMPUTED:
+ case LOC_COMPUTED_ARG:
+ return NULL;
+ default:
+ break;
+ }
+ if (preferred_type == NULL)
+ return NULL;
+ return syms[preferred_index].sym;
+}
+
+static struct type*
+find_primitive_type (char *name)
+{
+ struct type *type;
+ type = language_lookup_primitive_type_by_name (current_language,
+ current_gdbarch,
+ name);
+ if (type == NULL && strcmp ("system__address", name) == 0)
+ type = type_system_address ();
+
+ if (type != NULL)
+ {
+ /* Check to see if we have a regular definition of this
+ type that just didn't happen to have been read yet. */
+ int ntypes;
+ struct symbol *sym;
+ char *expanded_name =
+ (char *) alloca (strlen (name) + sizeof ("standard__"));
+ strcpy (expanded_name, "standard__");
+ strcat (expanded_name, name);
+ sym = ada_lookup_symbol (expanded_name, NULL, VAR_DOMAIN, NULL, NULL);
+ if (sym != NULL && SYMBOL_CLASS (sym) == LOC_TYPEDEF)
+ type = SYMBOL_TYPE (sym);
+ }
+
+ return type;
+}
+
+static int
+chop_selector (char *name, int end)
+{
+ int i;
+ for (i = end - 1; i > 0; i -= 1)
+ if (name[i] == '.' || (name[i] == '_' && name[i+1] == '_'))
+ return i;
+ return -1;
+}
+
+/* Given that SELS is a string of the form (<sep><identifier>)*, where
+ <sep> is '__' or '.', write the indicated sequence of
+ STRUCTOP_STRUCT expression operators. */
+static void
+write_selectors (char *sels)
+{
+ while (*sels != '\0')
+ {
+ struct stoken field_name;
+ char *p;
+ while (*sels == '_' || *sels == '.')
+ sels += 1;
+ p = sels;
+ while (*sels != '\0' && *sels != '.'
+ && (sels[0] != '_' || sels[1] != '_'))
+ sels += 1;
+ field_name.length = sels - p;
+ field_name.ptr = p;
+ write_exp_op_with_string (STRUCTOP_STRUCT, field_name);
+ }
+}
+
+/* Write a variable access (OP_VAR_VALUE) to ambiguous encoded name
+ NAME[0..LEN-1], in block context BLOCK, to be resolved later. Writes
+ a temporary symbol that is valid until the next call to ada_parse.
+ */
+static void
+write_ambiguous_var (struct block *block, char *name, int len)
+{
+ struct symbol *sym =
+ obstack_alloc (&temp_parse_space, sizeof (struct symbol));
+ memset (sym, 0, sizeof (struct symbol));
+ SYMBOL_DOMAIN (sym) = UNDEF_DOMAIN;
+ SYMBOL_LINKAGE_NAME (sym) = obsavestring (name, len, &temp_parse_space);
+ SYMBOL_LANGUAGE (sym) = language_ada;
+
+ write_exp_elt_opcode (OP_VAR_VALUE);
+ write_exp_elt_block (block);
+ write_exp_elt_sym (sym);
+ write_exp_elt_opcode (OP_VAR_VALUE);
+}
+
+
+/* Look up NAME0 (an unencoded identifier or dotted name) in BLOCK (or
+ expression_block_context if NULL). If it denotes a type, return
+ that type. Otherwise, write expression code to evaluate it as an
+ object and return NULL. In this second case, NAME0 will, in general,
+ have the form <name>(.<selector_name>)*, where <name> is an object
+ or renaming encoded in the debugging data. Calls error if no
+ prefix <name> matches a name in the debugging data (i.e., matches
+ either a complete name or, as a wild-card match, the final
+ identifier). */
+
+static struct type*
+write_var_or_type (struct block *block, struct stoken name0)
+{
+ int depth;
+ char *encoded_name;
+ int name_len;
+
+ if (block == NULL)
+ block = expression_context_block;
+
+ encoded_name = ada_encode (name0.ptr);
+ name_len = strlen (encoded_name);
+ encoded_name = obsavestring (encoded_name, name_len, &temp_parse_space);
+ for (depth = 0; depth < MAX_RENAMING_CHAIN_LENGTH; depth += 1)
+ {
+ int tail_index;
+
+ tail_index = name_len;
+ while (tail_index > 0)
+ {
+ int nsyms;
+ struct ada_symbol_info *syms;
+ struct symbol *type_sym;
+ int terminator = encoded_name[tail_index];
+
+ encoded_name[tail_index] = '\0';
+ nsyms = ada_lookup_symbol_list (encoded_name, block,
+ VAR_DOMAIN, &syms);
+ encoded_name[tail_index] = terminator;
+
+ /* A single symbol may rename a package or object. */
+
+ if (nsyms == 1 && !ada_is_object_renaming (syms[0].sym))
+ {
+ struct symbol *renaming_sym =
+ ada_find_renaming_symbol (SYMBOL_LINKAGE_NAME (syms[0].sym),
+ syms[0].block);
+
+ if (renaming_sym != NULL)
+ syms[0].sym = renaming_sym;
+ }
+
+ type_sym = select_possible_type_sym (syms, nsyms);
+ if (type_sym != NULL)
+ {
+ struct type *type = SYMBOL_TYPE (type_sym);
+
+ if (TYPE_CODE (type) == TYPE_CODE_VOID)
+ error (_("`%s' matches only void type name(s)"), name0.ptr);
+ else if (ada_is_object_renaming (type_sym))
+ {
+ write_object_renaming (block, type_sym,
+ MAX_RENAMING_CHAIN_LENGTH);
+ write_selectors (encoded_name + tail_index);
+ return NULL;
+ }
+ else if (ada_renaming_type (SYMBOL_TYPE (type_sym)) != NULL)
+ {
+ int result;
+ char *renaming = ada_simple_renamed_entity (type_sym);
+ int renaming_len = strlen (renaming);
+
+ char *new_name
+ = obstack_alloc (&temp_parse_space,
+ renaming_len + name_len - tail_index
+ + 1);
+ strcpy (new_name, renaming);
+ xfree (renaming);
+ strcpy (new_name + renaming_len, encoded_name + tail_index);
+ encoded_name = new_name;
+ name_len = renaming_len + name_len - tail_index;
+ goto TryAfterRenaming;
+ }
+ else if (tail_index == name_len)
+ return type;
+ else
+ error (_("Invalid attempt to select from type: \"%s\"."), name0.ptr);
+ }
+ else if (tail_index == name_len && nsyms == 0)
+ {
+ struct type *type = find_primitive_type (encoded_name);
+
+ if (type != NULL)
+ return type;
+ }
+
+ if (nsyms == 1)
+ {
+ write_var_from_sym (block, syms[0].block, syms[0].sym);
+ write_selectors (encoded_name + tail_index);
+ return NULL;
+ }
+ else if (nsyms == 0)
+ {
+ int i;
+ struct minimal_symbol *msym
+ = ada_lookup_simple_minsym (encoded_name);
+ if (msym != NULL)
+ {
+ write_exp_msymbol (msym, lookup_function_type (type_int ()),
+ type_int ());
+ /* Maybe cause error here rather than later? FIXME? */
+ write_selectors (encoded_name + tail_index);
+ return NULL;
+ }
+
+ if (tail_index == name_len
+ && strncmp (encoded_name, "standard__",
+ sizeof ("standard__") - 1) == 0)
+ error (_("No definition of \"%s\" found."), name0.ptr);
+
+ tail_index = chop_selector (encoded_name, tail_index);
+ }
+ else
+ {
+ write_ambiguous_var (block, encoded_name, tail_index);
+ write_selectors (encoded_name + tail_index);
+ return NULL;
+ }
+ }
+
+ if (!have_full_symbols () && !have_partial_symbols () && block == NULL)
+ error (_("No symbol table is loaded. Use the \"file\" command."));
+ if (block == expression_context_block)
+ error (_("No definition of \"%s\" in current context."), name0.ptr);
+ else
+ error (_("No definition of \"%s\" in specified context."), name0.ptr);
+
+ TryAfterRenaming: ;
+ }
+
+ error (_("Could not find renamed symbol \"%s\""), name0.ptr);
+
+}
+
+/* Write a left side of a component association (e.g., NAME in NAME =>
+ exp). If NAME has the form of a selected component, write it as an
+ ordinary expression. If it is a simple variable that unambiguously
+ corresponds to exactly one symbol that does not denote a type or an
+ object renaming, also write it normally as an OP_VAR_VALUE.
+ Otherwise, write it as an OP_NAME.
+
+ Unfortunately, we don't know at this point whether NAME is supposed
+ to denote a record component name or the value of an array index.
+ Therefore, it is not appropriate to disambiguate an ambiguous name
+ as we normally would, nor to replace a renaming with its referent.
+ As a result, in the (one hopes) rare case that one writes an
+ aggregate such as (R => 42) where R renames an object or is an
+ ambiguous name, one must write instead ((R) => 42). */
+
+static void
+write_name_assoc (struct stoken name)
+{
+ if (strchr (name.ptr, '.') == NULL)
+ {
+ struct ada_symbol_info *syms;
+ int nsyms = ada_lookup_symbol_list (name.ptr, expression_context_block,
+ VAR_DOMAIN, &syms);
+ if (nsyms != 1 || SYMBOL_CLASS (syms[0].sym) == LOC_TYPEDEF)
+ write_exp_op_with_string (OP_NAME, name);
+ else
+ write_var_from_sym (NULL, syms[0].block, syms[0].sym);
+ }
+ else
+ if (write_var_or_type (NULL, name) != NULL)
+ error (_("Invalid use of type."));
}
/* Convert the character literal whose ASCII value would be VAL to the
appropriate value of type TYPE, if there is a translation.
- Otherwise return VAL. Hence, in an enumeration type ('A', 'B'),
- the literal 'A' (VAL == 65), returns 0. */
+ Otherwise return VAL. Hence, in an enumeration type ('A', 'B'),
+ the literal 'A' (VAL == 65), returns 0. */
+
static LONGEST
-convert_char_literal (struct type* type, LONGEST val)
+convert_char_literal (struct type *type, LONGEST val)
{
char name[7];
int f;
if (type == NULL || TYPE_CODE (type) != TYPE_CODE_ENUM)
return val;
sprintf (name, "QU%02x", (int) val);
- for (f = 0; f < TYPE_NFIELDS (type); f += 1)
+ for (f = 0; f < TYPE_NFIELDS (type); f += 1)
{
- if (DEPRECATED_STREQ (name, TYPE_FIELD_NAME (type, f)))
+ if (strcmp (name, TYPE_FIELD_NAME (type, f)) == 0)
return TYPE_FIELD_BITPOS (type, f);
}
return val;
}
+
+static struct type *
+type_int (void)
+{
+ return builtin_type (current_gdbarch)->builtin_int;
+}
+
+static struct type *
+type_long (void)
+{
+ return builtin_type (current_gdbarch)->builtin_long;
+}
+
+static struct type *
+type_long_long (void)
+{
+ return builtin_type (current_gdbarch)->builtin_long_long;
+}
+
+static struct type *
+type_float (void)
+{
+ return builtin_type (current_gdbarch)->builtin_float;
+}
+
+static struct type *
+type_double (void)
+{
+ return builtin_type (current_gdbarch)->builtin_double;
+}
+
+static struct type *
+type_long_double (void)
+{
+ return builtin_type (current_gdbarch)->builtin_long_double;
+}
+
+static struct type *
+type_char (void)
+{
+ return language_string_char_type (current_language, current_gdbarch);
+}
+
+static struct type *
+type_system_address (void)
+{
+ struct type *type
+ = language_lookup_primitive_type_by_name (current_language,
+ current_gdbarch,
+ "system__address");
+ return type != NULL ? type : lookup_pointer_type (builtin_type_void);
+}
+
+void
+_initialize_ada_exp (void)
+{
+ obstack_init (&temp_parse_space);
+}
+
+/* FIXME: hilfingr/2004-10-05: Hack to remove warning. The function
+ string_to_operator is supposed to be used for cases where one
+ calls an operator function with prefix notation, as in
+ "+" (a, b), but at some point, this code seems to have gone
+ missing. */
+
+struct stoken (*dummy_string_to_ada_operator) (struct stoken)
+ = string_to_operator;
projects / deliverable / binutils-gdb.git / blobdiff