/* Helper routines for C++ support in GDB.
- Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008
+ Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010
Free Software Foundation, Inc.
Contributed by MontaVista Software.
#include "block.h"
#include "complaints.h"
#include "gdbtypes.h"
+#include "exceptions.h"
+#include "expression.h"
+#include "value.h"
#include "safe-ctype.h"
+#include "psymtab.h"
+
#define d_left(dc) (dc)->u.s_binary.left
#define d_right(dc) (dc)->u.s_binary.right
static void make_symbol_overload_list_qualified (const char *func_name);
-static void read_in_psymtabs (const char *oload_name);
-
/* The list of "maint cplus" commands. */
struct cmd_list_element *maint_cplus_cmd_list = NULL;
static void maint_cplus_command (char *arg, int from_tty);
static void first_component_command (char *arg, int from_tty);
+/* Operator validation.
+ NOTE: Multi-byte operators (usually the assignment variety operator)
+ must appear before the single byte version, i.e., "+=" before "+". */
+static const char *operator_tokens[] =
+ {
+ "++", "+=", "+", "->*", "->", "--", "-=", "-", "*=", "*", "/=", "/",
+ "%=", "%", "!=", "==", "!", "&&", "<<=", "<<", ">>=", ">>",
+ "<=", "<", ">=", ">", "~", "&=", "&", "|=", "||", "|", "^=", "^",
+ "=", "()", "[]", ",", "new", "delete"
+ /* new[] and delete[] require special whitespace handling */
+ };
+
/* Return 1 if STRING is clearly already in canonical form. This
function is conservative; things which it does not recognize are
assumed to be non-canonical, and the parser will sort them out
if (ret == NULL)
{
- free (demangled_name);
+ xfree (demangled_name);
return NULL;
}
current != NULL;
current = current->next)
{
- if (strcmp (namespace, current->outer) == 0)
+ if (strcmp (namespace, current->import_dest) == 0)
{
make_symbol_overload_list_using (func_name,
- current->inner);
+ current->import_src);
}
}
/* Look through the partial symtabs for all symbols which begin
by matching FUNC_NAME. Make sure we read that symbol table in. */
- read_in_psymtabs (func_name);
+ ALL_OBJFILES (objfile)
+ {
+ if (objfile->sf)
+ objfile->sf->qf->expand_symtabs_for_function (objfile, func_name);
+ }
/* Search upwards from currently selected frame (so that we can
complete on local vars. */
}
}
-/* Look through the partial symtabs for all symbols which begin
- by matching FUNC_NAME. Make sure we read that symbol table in. */
-
-static void
-read_in_psymtabs (const char *func_name)
-{
- struct partial_symtab *ps;
- struct objfile *objfile;
-
- ALL_PSYMTABS (objfile, ps)
- {
- if (ps->readin)
- continue;
-
- if ((lookup_partial_symbol (ps, func_name, NULL, 1, VAR_DOMAIN)
- != NULL)
- || (lookup_partial_symbol (ps, func_name, NULL, 0, VAR_DOMAIN)
- != NULL))
- psymtab_to_symtab (ps);
- }
-}
-
/* Lookup the rtti type for a class name. */
struct type *
extern initialize_file_ftype _initialize_cp_support; /* -Wmissing-prototypes */
+#define SKIP_SPACE(P) \
+ do \
+ { \
+ while (*(P) == ' ' || *(P) == '\t') \
+ ++(P); \
+ } \
+ while (0)
+
+/* Returns the length of the operator name or 0 if INPUT does not
+ point to a valid C++ operator. INPUT should start with "operator". */
+int
+cp_validate_operator (const char *input)
+{
+ int i;
+ char *copy;
+ const char *p;
+ struct expression *expr;
+ struct value *val;
+ struct gdb_exception except;
+ struct cleanup *old_chain;
+
+ p = input;
+
+ if (strncmp (p, "operator", 8) == 0)
+ {
+ int valid = 0;
+ p += 8;
+
+ SKIP_SPACE (p);
+ for (i = 0; i < sizeof (operator_tokens) / sizeof (operator_tokens[0]);
+ ++i)
+ {
+ int length = strlen (operator_tokens[i]);
+ /* By using strncmp here, we MUST have operator_tokens ordered!
+ See additional notes where operator_tokens is defined above. */
+ if (strncmp (p, operator_tokens[i], length) == 0)
+ {
+ const char *op = p;
+ valid = 1;
+ p += length;
+
+ if (strncmp (op, "new", 3) == 0
+ || strncmp (op, "delete", 6) == 0)
+ {
+
+ /* Special case: new[] and delete[]. We must be careful
+ to swallow whitespace before/in "[]". */
+ SKIP_SPACE (p);
+
+ if (*p == '[')
+ {
+ ++p;
+ SKIP_SPACE (p);
+ if (*p == ']')
+ ++p;
+ else
+ valid = 0;
+ }
+ }
+
+ if (valid)
+ return (p - input);
+ }
+ }
+
+ /* Check input for a conversion operator. */
+
+ /* Skip past base typename */
+ while (*p != '*' && *p != '&' && *p != 0 && *p != ' ')
+ ++p;
+ SKIP_SPACE (p);
+
+ /* Add modifiers '*'/'&' */
+ while (*p == '*' || *p == '&')
+ {
+ ++p;
+ SKIP_SPACE (p);
+ }
+
+ /* Check for valid type. [Remember: input starts with
+ "operator".] */
+ copy = savestring (input + 8, p - input - 8);
+ expr = NULL;
+ val = NULL;
+ TRY_CATCH (except, RETURN_MASK_ALL)
+ {
+ expr = parse_expression (copy);
+ val = evaluate_type (expr);
+ }
+
+ xfree (copy);
+ if (expr)
+ xfree (expr);
+
+ if (val != NULL && value_type (val) != NULL)
+ return (p - input);
+ }
+
+ return 0;
+}
+
void
_initialize_cp_support (void)
{
projects / deliverable / binutils-gdb.git / blobdiff