#include "completer.h"
#include "cp-abi.h"
#include "parser-defs.h"
+#include "block.h"
/* We share this one with symtab.c, but it is not exported widely. */
char *saved_arg,
char *p);
+static struct symbol *lookup_prefix_sym (char **argptr, char *p);
+
+static struct symtabs_and_lines find_method (int funfirstline,
+ char ***canonical,
+ char *saved_arg,
+ char *copy,
+ struct type *t,
+ struct symbol *sym_class);
+
+static int collect_methods (char *copy, struct type *t,
+ struct symbol **sym_arr);
+
static NORETURN void cplusplus_error (const char *name,
const char *fmt, ...)
ATTR_NORETURN ATTR_FORMAT (printf, 2, 3);
else
phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter);
- /* Destructor is handled by caller, dont add it to the list */
+ /* Destructor is handled by caller, don't add it to
+ the list. */
if (is_destructor_name (phys_name) != 0)
continue;
&& (class_name[name_len] == '\0'
|| class_name[name_len] == '<'))
{
- /* For GCC 3.x and stabs, constructors and destructors have names
- like __base_ctor and __complete_dtor. Check the physname for now
- if we're looking for a constructor. */
+ /* For GCC 3.x and stabs, constructors and destructors
+ have names like __base_ctor and __complete_dtor.
+ Check the physname for now if we're looking for a
+ constructor. */
for (field_counter
= TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1;
field_counter >= 0;
f = TYPE_FN_FIELDLIST1 (t, method_counter);
- /* GCC 3.x will never produce stabs stub methods, so we don't need
- to handle this case. */
+ /* GCC 3.x will never produce stabs stub methods, so
+ we don't need to handle this case. */
if (TYPE_FN_FIELD_STUB (f, field_counter))
continue;
phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter);
int quoted = 0; /* zero if we're not in quotes;
'"' if we're in a double-quoted string;
'\'' if we're in a single-quoted string. */
- int depth = 0; /* number of unclosed parens we've seen */
+ int depth = 0; /* Number of unclosed parens we've seen. */
char *scan;
for (scan = s; *scan; scan++)
printf_unfiltered ("[0] cancel\n[1] all\n");
while (i < nelts)
{
- init_sal (&return_values.sals[i]); /* initialize to zeroes */
+ init_sal (&return_values.sals[i]); /* Initialize to zeroes. */
init_sal (&values.sals[i]);
if (sym_arr[i] && SYMBOL_CLASS (sym_arr[i]) == LOC_BLOCK)
{
values.sals[i] = find_function_start_sal (sym_arr[i], funfirstline);
printf_unfiltered ("[%d] %s at %s:%d\n",
(i + 2),
- SYMBOL_SOURCE_NAME (sym_arr[i]),
+ SYMBOL_PRINT_NAME (sym_arr[i]),
values.sals[i].symtab->filename,
values.sals[i].line);
}
i++;
}
- if ((prompt = getenv ("PS2")) == NULL)
+ prompt = getenv ("PS2");
+ if (prompt == NULL)
{
prompt = "> ";
}
{
if (canonical_arr[i] == NULL)
{
- symname = SYMBOL_NAME (sym_arr[i]);
+ symname = DEPRECATED_SYMBOL_NAME (sym_arr[i]);
canonical_arr[i] = savestring (symname, strlen (symname));
}
}
{
if (canonical_arr)
{
- symname = SYMBOL_NAME (sym_arr[num]);
+ symname = DEPRECATED_SYMBOL_NAME (sym_arr[num]);
make_cleanup (xfree, symname);
canonical_arr[i] = savestring (symname, strlen (symname));
}
initialize_defaults (&default_symtab, &default_line);
- /* See if arg is *PC */
+ /* See if arg is *PC. */
if (**argptr == '*')
return decode_indirect (argptr);
- /* Set various flags.
- * 'paren_pointer' is important for overload checking, where
- * we allow things like:
- * (gdb) break c::f(int)
- */
+ /* Set various flags. 'paren_pointer' is important for overload
+ checking, where we allow things like:
+ (gdb) break c::f(int)
+ */
set_flags (*argptr, &is_quoted, &paren_pointer);
/* S is specified file's symtab, or 0 if no file specified.
arg no longer contains the file name. */
- /* Check whether arg is all digits (and sign) */
+ /* Check whether arg is all digits (and sign). */
q = *argptr;
if (*q == '-' || *q == '+')
/* Arg token is not digits => try it as a variable name
Find the next token (everything up to end or next whitespace). */
- if (**argptr == '$') /* May be a convenience variable */
- p = skip_quoted (*argptr + (((*argptr)[1] == '$') ? 2 : 1)); /* One or two $ chars possible */
+ if (**argptr == '$') /* May be a convenience variable. */
+ /* One or two $ chars possible. */
+ p = skip_quoted (*argptr + (((*argptr)[1] == '$') ? 2 : 1));
else if (is_quoted)
{
p = skip_quoted (*argptr);
/* If it starts with $: may be a legitimate variable or routine name
(e.g. HP-UX millicode routines such as $$dyncall), or it may
- be history value, or it may be a convenience variable */
+ be history value, or it may be a convenience variable. */
if (*copy == '$')
return decode_dollar (copy, funfirstline, default_symtab,
int has_if = 0;
/* 'has_if' is for the syntax:
- * (gdb) break foo if (a==b)
- */
+ (gdb) break foo if (a==b)
+ */
if ((ii = strstr (arg, " if ")) != NULL ||
(ii = strstr (arg, "\tif ")) != NULL ||
(ii = strstr (arg, " if\t")) != NULL ||
(ii = strstr (arg, " if(")) != NULL ||
(ii = strstr (arg, "\tif( ")) != NULL)
has_if = 1;
- /* Temporarily zap out "if (condition)" to not
- * confuse the parenthesis-checking code below.
- * This is undone below. Do not change ii!!
- */
+ /* Temporarily zap out "if (condition)" to not confuse the
+ parenthesis-checking code below. This is undone below. Do not
+ change ii!! */
if (has_if)
{
*ii = '\0';
if (*paren_pointer != NULL)
*paren_pointer = strrchr (*paren_pointer, ')');
- /* Now that we're safely past the paren_pointer check,
- * put back " if (condition)" so outer layers can see it
- */
+ /* Now that we're safely past the paren_pointer check, put back " if
+ (condition)" so outer layers can see it. */
if (has_if)
*ii = ' ';
}
ii = find_toplevel_char (*argptr, ',');
has_comma = (ii != 0);
- /* Temporarily zap out second half to not
- * confuse the code below.
- * This is undone below. Do not change ii!!
- */
+ /* Temporarily zap out second half to not confuse the code below.
+ This is undone below. Do not change ii!! */
if (has_comma)
{
*ii = '\0';
}
- /* Maybe arg is FILE : LINENUM or FILE : FUNCTION */
- /* May also be CLASS::MEMBER, or NAMESPACE::NAME */
- /* Look for ':', but ignore inside of <> */
+ /* Maybe arg is FILE : LINENUM or FILE : FUNCTION. May also be
+ CLASS::MEMBER, or NAMESPACE::NAME. Look for ':', but ignore
+ inside of <>. */
p = *argptr;
if (p[0] == '"')
error ("malformed template specification in command");
p = temp_end;
}
- /* Check for the end of the first half of the linespec. End of line,
- a tab, a double colon or the last single colon, or a space. But
- if enclosed in double quotes we do not break on enclosed spaces */
+ /* Check for the end of the first half of the linespec. End of
+ line, a tab, a double colon or the last single colon, or a
+ space. But if enclosed in double quotes we do not break on
+ enclosed spaces. */
if (!*p
|| p[0] == '\t'
|| ((p[0] == ':')
&& ((p[1] == ':') || (strchr (p + 1, ':') == NULL)))
|| ((p[0] == ' ') && !*is_quote_enclosed))
break;
- if (p[0] == '.' && strchr (p, ':') == NULL) /* Java qualified method. */
+ if (p[0] == '.' && strchr (p, ':') == NULL)
{
- /* Find the *last* '.', since the others are package qualifiers. */
+ /* Java qualified method. Find the *last* '.', since the
+ others are package qualifiers. */
for (p1 = p; *p1; p1++)
{
if (*p1 == '.')
while (p[0] == ' ' || p[0] == '\t')
p++;
- /* if the closing double quote was left at the end, remove it */
+ /* If the closing double quote was left at the end, remove it. */
if (*is_quote_enclosed)
{
char *closing_quote = strchr (p - 1, '"');
*closing_quote = '\0';
}
- /* Now that we've safely parsed the first half,
- * put back ',' so outer layers can see it
- */
+ /* Now that we've safely parsed the first half, put back ',' so
+ outer layers can see it. */
if (has_comma)
*ii = ',';
char *saved_arg, char *p)
{
struct symtabs_and_lines values;
- char *p1, *p2;
+ char *p2;
#if 0
char *q, *q1;
#endif
struct symtab *sym_symtab;
char *copy;
struct symbol *sym_class;
- int i1;
struct symbol **sym_arr;
struct type *t;
/* First check for "global" namespace specification,
- of the form "::foo". If found, skip over the colons
- and jump to normal symbol processing */
+ of the form "::foo". If found, skip over the colons
+ and jump to normal symbol processing. */
if (p[0] == ':'
&& ((*argptr == p) || (p[-1] == ' ') || (p[-1] == '\t')))
saved_arg2 += 2;
Note that namespaces can nest only inside other
namespaces, and not inside classes. So we need only
consider *prefixes* of the string; there is no need to look up
- "B::C" separately as a symbol in the previous example. */
+ "B::C" separately as a symbol in the previous example. */
- p2 = p; /* save for restart */
+ p2 = p; /* Save for restart. */
while (1)
{
- /* Extract the class name. */
- p1 = p;
- while (p != *argptr && p[-1] == ' ')
- --p;
- copy = (char *) alloca (p - *argptr + 1);
- memcpy (copy, *argptr, p - *argptr);
- copy[p - *argptr] = 0;
-
- /* Discard the class name from the arg. */
- p = p1 + (p1[0] == ':' ? 2 : 1);
- while (*p == ' ' || *p == '\t')
- p++;
- *argptr = p;
-
- sym_class = lookup_symbol (copy, 0, STRUCT_NAMESPACE, 0,
- (struct symtab **) NULL);
+ sym_class = lookup_prefix_sym (argptr, p);
if (sym_class &&
(t = check_typedef (SYMBOL_TYPE (sym_class)),
(TYPE_CODE (t) == TYPE_CODE_STRUCT
|| TYPE_CODE (t) == TYPE_CODE_UNION)))
{
- /* Arg token is not digits => try it as a function name
- Find the next token(everything up to end or next blank). */
+ /* Arg token is not digits => try it as a function name.
+ Find the next token (everything up to end or next
+ blank). */
if (**argptr
&& strchr (get_gdb_completer_quote_characters (),
**argptr) != NULL)
copy[p - *argptr - 1] = '\0';
}
- /* no line number may be specified */
+ /* No line number may be specified. */
while (*p == ' ' || *p == '\t')
p++;
*argptr = p;
- sym = 0;
- i1 = 0; /* counter for the symbol array */
- sym_arr = (struct symbol **) alloca (total_number_of_methods (t)
- * sizeof (struct symbol *));
-
- if (destructor_name_p (copy, t))
- {
- /* Destructors are a special case. */
- int m_index, f_index;
-
- if (get_destructor_fn_field (t, &m_index, &f_index))
- {
- struct fn_field *f = TYPE_FN_FIELDLIST1 (t, m_index);
-
- sym_arr[i1] =
- lookup_symbol (TYPE_FN_FIELD_PHYSNAME (f, f_index),
- NULL, VAR_NAMESPACE, (int *) NULL,
- (struct symtab **) NULL);
- if (sym_arr[i1])
- i1++;
- }
- }
- else
- i1 = find_methods (t, copy, sym_arr);
- if (i1 == 1)
- {
- /* There is exactly one field with that name. */
- sym = sym_arr[0];
-
- if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK)
- {
- values.sals = (struct symtab_and_line *)
- xmalloc (sizeof (struct symtab_and_line));
- values.nelts = 1;
- values.sals[0] = find_function_start_sal (sym,
- funfirstline);
- }
- else
- {
- values.nelts = 0;
- }
- return values;
- }
- if (i1 > 0)
- {
- /* There is more than one field with that name
- (overloaded). Ask the user which one to use. */
- return decode_line_2 (sym_arr, i1, funfirstline, canonical);
- }
- else
- {
- char *tmp;
-
- if (is_operator_name (copy))
- {
- tmp = (char *) alloca (strlen (copy + 3) + 9);
- strcpy (tmp, "operator ");
- strcat (tmp, copy + 3);
- }
- else
- tmp = copy;
- if (tmp[0] == '~')
- cplusplus_error (saved_arg,
- "the class `%s' does not have destructor defined\n",
- SYMBOL_SOURCE_NAME (sym_class));
- else
- cplusplus_error (saved_arg,
- "the class %s does not have any method named %s\n",
- SYMBOL_SOURCE_NAME (sym_class), tmp);
- }
+ return find_method (funfirstline, canonical, saved_arg,
+ copy, t, sym_class);
}
- /* Move pointer up to next possible class/namespace token */
- p = p2 + 1; /* restart with old value +1 */
- /* Move pointer ahead to next double-colon */
+ /* Move pointer up to next possible class/namespace token. */
+ p = p2 + 1; /* Restart with old value +1. */
+ /* Move pointer ahead to next double-colon. */
while (*p && (p[0] != ' ') && (p[0] != '\t') && (p[0] != '\''))
{
if (p[0] == '<')
p = temp_end;
}
else if ((p[0] == ':') && (p[1] == ':'))
- break; /* found double-colon */
+ break; /* Found double-colon. */
else
p++;
}
if (*p != ':')
- break; /* out of the while (1) */
+ break; /* Out of the while (1). */
- p2 = p; /* save restart for next time around */
- *argptr = saved_arg2; /* restore argptr */
+ p2 = p; /* Save restart for next time around. */
+ *argptr = saved_arg2; /* Restore argptr. */
} /* while (1) */
- /* Last chance attempt -- check entire name as a symbol */
- /* Use "copy" in preparation for jumping out of this block,
- to be consistent with usage following the jump target */
+ /* Last chance attempt -- check entire name as a symbol. Use "copy"
+ in preparation for jumping out of this block, to be consistent
+ with usage following the jump target. */
copy = (char *) alloca (p - saved_arg2 + 1);
memcpy (copy, saved_arg2, p - saved_arg2);
- /* Note: if is_quoted should be true, we snuff out quote here anyway */
+ /* Note: if is_quoted should be true, we snuff out quote here
+ anyway. */
copy[p - saved_arg2] = '\000';
- /* Set argptr to skip over the name */
+ /* Set argptr to skip over the name. */
*argptr = (*p == '\'') ? p + 1 : p;
/* Look up entire name */
sym = lookup_symbol (copy, 0, VAR_NAMESPACE, 0, &sym_symtab);
return symbol_found (funfirstline, canonical, copy, sym,
NULL, sym_symtab);
- /* Couldn't find any interpretation as classes/namespaces, so give up */
- /* The quotes are important if copy is empty. */
+ /* Couldn't find any interpretation as classes/namespaces, so give
+ up. The quotes are important if copy is empty. */
cplusplus_error (saved_arg,
"Can't find member of namespace, class, struct, or union named \"%s\"\n",
copy);
}
+/* Next come some helper functions for decode_compound. */
+
+/* Return the symbol corresponding to the substring of *ARGPTR ending
+ at P, allowing whitespace. Also, advance *ARGPTR past the symbol
+ name in question, the compound object separator ("::" or "."), and
+ whitespace. */
+
+static struct symbol *
+lookup_prefix_sym (char **argptr, char *p)
+{
+ char *p1;
+ char *copy;
+
+ /* Extract the class name. */
+ p1 = p;
+ while (p != *argptr && p[-1] == ' ')
+ --p;
+ copy = (char *) alloca (p - *argptr + 1);
+ memcpy (copy, *argptr, p - *argptr);
+ copy[p - *argptr] = 0;
+
+ /* Discard the class name from the arg. */
+ p = p1 + (p1[0] == ':' ? 2 : 1);
+ while (*p == ' ' || *p == '\t')
+ p++;
+ *argptr = p;
+
+ return lookup_symbol (copy, 0, STRUCT_NAMESPACE, 0,
+ (struct symtab **) NULL);
+}
+
+/* This finds the method COPY in the class whose type is T and whose
+ symbol is SYM_CLASS. */
+
+static struct symtabs_and_lines
+find_method (int funfirstline, char ***canonical, char *saved_arg,
+ char *copy, struct type *t, struct symbol *sym_class)
+{
+ struct symtabs_and_lines values;
+ struct symbol *sym = 0;
+ int i1; /* Counter for the symbol array. */
+ struct symbol **sym_arr = alloca (total_number_of_methods (t)
+ * sizeof (struct symbol *));
+
+ /* Find all methods with a matching name, and put them in
+ sym_arr. */
+
+ i1 = collect_methods (copy, t, sym_arr);
+
+ if (i1 == 1)
+ {
+ /* There is exactly one field with that name. */
+ sym = sym_arr[0];
+
+ if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK)
+ {
+ values.sals = (struct symtab_and_line *)
+ xmalloc (sizeof (struct symtab_and_line));
+ values.nelts = 1;
+ values.sals[0] = find_function_start_sal (sym,
+ funfirstline);
+ }
+ else
+ {
+ values.nelts = 0;
+ }
+ return values;
+ }
+ if (i1 > 0)
+ {
+ /* There is more than one field with that name
+ (overloaded). Ask the user which one to use. */
+ return decode_line_2 (sym_arr, i1, funfirstline, canonical);
+ }
+ else
+ {
+ char *tmp;
+
+ if (is_operator_name (copy))
+ {
+ tmp = (char *) alloca (strlen (copy + 3) + 9);
+ strcpy (tmp, "operator ");
+ strcat (tmp, copy + 3);
+ }
+ else
+ tmp = copy;
+ if (tmp[0] == '~')
+ cplusplus_error (saved_arg,
+ "the class `%s' does not have destructor defined\n",
+ SYMBOL_PRINT_NAME (sym_class));
+ else
+ cplusplus_error (saved_arg,
+ "the class %s does not have any method named %s\n",
+ SYMBOL_PRINT_NAME (sym_class), tmp);
+ }
+}
+
+/* Find all methods named COPY in the class whose type is T, and put
+ them in SYM_ARR. Return the number of methods found. */
+
+static int
+collect_methods (char *copy, struct type *t,
+ struct symbol **sym_arr)
+{
+ int i1 = 0; /* Counter for the symbol array. */
+
+ if (destructor_name_p (copy, t))
+ {
+ /* Destructors are a special case. */
+ int m_index, f_index;
+
+ if (get_destructor_fn_field (t, &m_index, &f_index))
+ {
+ struct fn_field *f = TYPE_FN_FIELDLIST1 (t, m_index);
+
+ sym_arr[i1] =
+ lookup_symbol (TYPE_FN_FIELD_PHYSNAME (f, f_index),
+ NULL, VAR_NAMESPACE, (int *) NULL,
+ (struct symtab **) NULL);
+ if (sym_arr[i1])
+ i1++;
+ }
+ }
+ else
+ i1 = find_methods (t, copy, sym_arr);
+
+ return i1;
+}
+
\f
/* Return the symtab associated to the filename given by the substring
--p;
copy = (char *) alloca (p - *argptr + 1);
memcpy (copy, *argptr, p - *argptr);
- /* It may have the ending quote right after the file name */
+ /* It may have the ending quote right after the file name. */
if (is_quote_enclosed && copy[p - *argptr - 1] == '"')
copy[p - *argptr - 1] = 0;
else
We must guarantee that this section of code is never executed
when we are called with just a function name, since
set_default_source_symtab_and_line uses
- select_source_symtab that calls us with such an argument */
+ select_source_symtab that calls us with such an argument. */
if (file_symtab == 0 && default_symtab == 0)
{
- /* Make sure we have at least a default source file. */
+ /* Make sure we have at least a default source file. */
set_default_source_symtab_and_line ();
initialize_defaults (&default_symtab, &default_line);
}
p = (copy[1] == '$') ? copy + 2 : copy + 1;
while (*p >= '0' && *p <= '9')
p++;
- if (!*p) /* reached end of token without hitting non-digit */
+ if (!*p) /* Reached end of token without hitting non-digit. */
{
- /* We have a value history reference */
+ /* We have a value history reference. */
sscanf ((copy[1] == '$') ? copy + 2 : copy + 1, "%d", &index);
valx = access_value_history ((copy[1] == '$') ? -index : index);
if (TYPE_CODE (VALUE_TYPE (valx)) != TYPE_CODE_INT)
else
{
/* Not all digits -- may be user variable/function or a
- convenience variable */
+ convenience variable. */
- /* Look up entire name as a symbol first */
+ /* Look up entire name as a symbol first. */
sym = lookup_symbol (copy, 0, VAR_NAMESPACE, 0, &sym_symtab);
file_symtab = (struct symtab *) 0;
need_canonical = 1;
return symbol_found (funfirstline, canonical, copy, sym,
NULL, sym_symtab);
- /* If symbol was not found, look in minimal symbol tables */
+ /* If symbol was not found, look in minimal symbol tables. */
msymbol = lookup_minimal_symbol (copy, NULL, NULL);
- /* Min symbol was found --> jump to minsym processing. */
+ /* Min symbol was found --> jump to minsym processing. */
if (msymbol)
return minsym_found (funfirstline, msymbol);
- /* Not a user variable or function -- must be convenience variable */
+ /* Not a user variable or function -- must be convenience variable. */
need_canonical = (file_symtab == 0) ? 1 : 0;
valx = value_of_internalvar (lookup_internalvar (copy + 1));
if (TYPE_CODE (VALUE_TYPE (valx)) != TYPE_CODE_INT)
init_sal (&val);
- /* Either history value or convenience value from above, in valx */
+ /* Either history value or convenience value from above, in valx. */
val.symtab = file_symtab ? file_symtab : default_symtab;
val.line = value_as_long (valx);
val.pc = 0;
projects / deliverable / binutils-gdb.git / blobdiff