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Diffstat (limited to 'gdb/c-typeprint.c')
| -rw-r--r-- | gdb/c-typeprint.c | 1190 |
1 files changed, 1190 insertions, 0 deletions
diff --git a/gdb/c-typeprint.c b/gdb/c-typeprint.c new file mode 100644 index 00000000000..430d5674f24 --- /dev/null +++ b/gdb/c-typeprint.c @@ -0,0 +1,1190 @@ +/* Support for printing C and C++ types for GDB, the GNU debugger. + Copyright 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1998, + 1999, 2000, 2001, 2002 + Free Software Foundation, Inc. + + This file is part of GDB. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + 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., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include "defs.h" +#include "obstack.h" +#include "bfd.h" /* Binary File Description */ +#include "symtab.h" +#include "gdbtypes.h" +#include "expression.h" +#include "value.h" +#include "gdbcore.h" +#include "target.h" +#include "language.h" +#include "demangle.h" +#include "c-lang.h" +#include "typeprint.h" +#include "cp-abi.h" + +#include "gdb_string.h" +#include <errno.h> + +/* Flag indicating target was compiled by HP compiler */ +extern int hp_som_som_object_present; + +static void cp_type_print_method_args (struct type ** args, char *prefix, + char *varstring, int staticp, + struct ui_file *stream); + +static void c_type_print_args (struct type *, struct ui_file *); + +static void cp_type_print_derivation_info (struct ui_file *, struct type *); + +void c_type_print_varspec_prefix (struct type *, struct ui_file *, int, + int); + +/* Print "const", "volatile", or address space modifiers. */ +static void c_type_print_modifier (struct type *, struct ui_file *, + int, int); + + + + +/* LEVEL is the depth to indent lines by. */ + +void +c_print_type (struct type *type, char *varstring, struct ui_file *stream, + int show, int level) +{ + register enum type_code code; + int demangled_args; + + if (show > 0) + CHECK_TYPEDEF (type); + + c_type_print_base (type, stream, show, level); + code = TYPE_CODE (type); + if ((varstring != NULL && *varstring != '\0') + || + /* Need a space if going to print stars or brackets; + but not if we will print just a type name. */ + ((show > 0 || TYPE_NAME (type) == 0) + && + (code == TYPE_CODE_PTR || code == TYPE_CODE_FUNC + || code == TYPE_CODE_METHOD + || code == TYPE_CODE_ARRAY + || code == TYPE_CODE_MEMBER + || code == TYPE_CODE_REF))) + fputs_filtered (" ", stream); + c_type_print_varspec_prefix (type, stream, show, 0); + + if (varstring != NULL) + { + fputs_filtered (varstring, stream); + + /* For demangled function names, we have the arglist as part of the name, + so don't print an additional pair of ()'s */ + + demangled_args = strchr (varstring, '(') != NULL; + c_type_print_varspec_suffix (type, stream, show, 0, demangled_args); + } +} + +/* If TYPE is a derived type, then print out derivation information. + Print only the actual base classes of this type, not the base classes + of the base classes. I.E. for the derivation hierarchy: + + class A { int a; }; + class B : public A {int b; }; + class C : public B {int c; }; + + Print the type of class C as: + + class C : public B { + int c; + } + + Not as the following (like gdb used to), which is not legal C++ syntax for + derived types and may be confused with the multiple inheritance form: + + class C : public B : public A { + int c; + } + + In general, gdb should try to print the types as closely as possible to + the form that they appear in the source code. + Note that in case of protected derivation gcc will not say 'protected' + but 'private'. The HP's aCC compiler emits specific information for + derivation via protected inheritance, so gdb can print it out */ + +static void +cp_type_print_derivation_info (struct ui_file *stream, struct type *type) +{ + char *name; + int i; + + for (i = 0; i < TYPE_N_BASECLASSES (type); i++) + { + fputs_filtered (i == 0 ? ": " : ", ", stream); + fprintf_filtered (stream, "%s%s ", + BASETYPE_VIA_PUBLIC (type, i) ? "public" + : (TYPE_FIELD_PROTECTED (type, i) ? "protected" : "private"), + BASETYPE_VIA_VIRTUAL (type, i) ? " virtual" : ""); + name = type_name_no_tag (TYPE_BASECLASS (type, i)); + fprintf_filtered (stream, "%s", name ? name : "(null)"); + } + if (i > 0) + { + fputs_filtered (" ", stream); + } +} +/* Print the C++ method arguments ARGS to the file STREAM. */ + +static void +cp_type_print_method_args (struct type **args, char *prefix, char *varstring, + int staticp, struct ui_file *stream) +{ + int i; + + fprintf_symbol_filtered (stream, prefix, language_cplus, DMGL_ANSI); + fprintf_symbol_filtered (stream, varstring, language_cplus, DMGL_ANSI); + fputs_filtered ("(", stream); + if (args && args[!staticp] && TYPE_CODE (args[!staticp]) != TYPE_CODE_VOID) + { + i = !staticp; /* skip the class variable */ + while (1) + { + type_print (args[i++], "", stream, 0); + if (!args[i]) + { + fprintf_filtered (stream, " ..."); + break; + } + else if (TYPE_CODE (args[i]) != TYPE_CODE_VOID) + { + fprintf_filtered (stream, ", "); + } + else + break; + } + } + else if (current_language->la_language == language_cplus) + { + fprintf_filtered (stream, "void"); + } + + fprintf_filtered (stream, ")"); +} + + +/* Print any asterisks or open-parentheses needed before the + variable name (to describe its type). + + On outermost call, pass 0 for PASSED_A_PTR. + On outermost call, SHOW > 0 means should ignore + any typename for TYPE and show its details. + SHOW is always zero on recursive calls. */ + +void +c_type_print_varspec_prefix (struct type *type, struct ui_file *stream, + int show, int passed_a_ptr) +{ + char *name; + if (type == 0) + return; + + if (TYPE_NAME (type) && show <= 0) + return; + + QUIT; + + switch (TYPE_CODE (type)) + { + case TYPE_CODE_PTR: + c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 1); + fprintf_filtered (stream, "*"); + c_type_print_modifier (type, stream, 1, 0); + break; + + case TYPE_CODE_MEMBER: + if (passed_a_ptr) + fprintf_filtered (stream, "("); + c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0); + fprintf_filtered (stream, " "); + name = type_name_no_tag (TYPE_DOMAIN_TYPE (type)); + if (name) + fputs_filtered (name, stream); + else + c_type_print_base (TYPE_DOMAIN_TYPE (type), stream, 0, passed_a_ptr); + fprintf_filtered (stream, "::"); + break; + + case TYPE_CODE_METHOD: + if (passed_a_ptr) + fprintf_filtered (stream, "("); + c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0); + if (passed_a_ptr) + { + fprintf_filtered (stream, " "); + c_type_print_base (TYPE_DOMAIN_TYPE (type), stream, 0, passed_a_ptr); + fprintf_filtered (stream, "::"); + } + break; + + case TYPE_CODE_REF: + c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 1); + fprintf_filtered (stream, "&"); + c_type_print_modifier (type, stream, 1, 0); + break; + + case TYPE_CODE_FUNC: + c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0); + if (passed_a_ptr) + fprintf_filtered (stream, "("); + break; + + case TYPE_CODE_ARRAY: + c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0); + if (passed_a_ptr) + fprintf_filtered (stream, "("); + break; + + case TYPE_CODE_UNDEF: + case TYPE_CODE_STRUCT: + case TYPE_CODE_UNION: + case TYPE_CODE_ENUM: + case TYPE_CODE_INT: + case TYPE_CODE_FLT: + case TYPE_CODE_VOID: + case TYPE_CODE_ERROR: + case TYPE_CODE_CHAR: + case TYPE_CODE_BOOL: + case TYPE_CODE_SET: + case TYPE_CODE_RANGE: + case TYPE_CODE_STRING: + case TYPE_CODE_BITSTRING: + case TYPE_CODE_COMPLEX: + case TYPE_CODE_TYPEDEF: + case TYPE_CODE_TEMPLATE: + /* These types need no prefix. They are listed here so that + gcc -Wall will reveal any types that haven't been handled. */ + break; + default: + error ("type not handled in c_type_print_varspec_prefix()"); + break; + } +} + +/* Print out "const" and "volatile" attributes. + TYPE is a pointer to the type being printed out. + STREAM is the output destination. + NEED_SPACE = 1 indicates an initial white space is needed */ + +static void +c_type_print_modifier (struct type *type, struct ui_file *stream, + int need_pre_space, int need_post_space) +{ + int did_print_modifier = 0; + char *address_space_id; + + /* We don't print `const' qualifiers for references --- since all + operators affect the thing referenced, not the reference itself, + every reference is `const'. */ + if (TYPE_CONST (type) + && TYPE_CODE (type) != TYPE_CODE_REF) + { + if (need_pre_space) + fprintf_filtered (stream, " "); + fprintf_filtered (stream, "const"); + did_print_modifier = 1; + } + + if (TYPE_VOLATILE (type)) + { + if (did_print_modifier || need_pre_space) + fprintf_filtered (stream, " "); + fprintf_filtered (stream, "volatile"); + did_print_modifier = 1; + } + + address_space_id = address_space_int_to_name (TYPE_INSTANCE_FLAGS (type)); + if (address_space_id) + { + if (did_print_modifier || need_pre_space) + fprintf_filtered (stream, " "); + fprintf_filtered (stream, "@%s", address_space_id); + did_print_modifier = 1; + } + + if (did_print_modifier && need_post_space) + fprintf_filtered (stream, " "); +} + + + + +static void +c_type_print_args (struct type *type, struct ui_file *stream) +{ + int i; + struct type **args; + + fprintf_filtered (stream, "("); + args = TYPE_ARG_TYPES (type); + if (args != NULL) + { + if (args[1] == NULL) + { + fprintf_filtered (stream, "..."); + } + else if ((TYPE_CODE (args[1]) == TYPE_CODE_VOID) && + (current_language->la_language == language_cplus)) + { + fprintf_filtered (stream, "void"); + } + else + { + for (i = 1; + args[i] != NULL && TYPE_CODE (args[i]) != TYPE_CODE_VOID; + i++) + { + c_print_type (args[i], "", stream, -1, 0); + if (args[i + 1] == NULL) + { + fprintf_filtered (stream, "..."); + } + else if (TYPE_CODE (args[i + 1]) != TYPE_CODE_VOID) + { + fprintf_filtered (stream, ","); + wrap_here (" "); + } + } + } + } + else if (current_language->la_language == language_cplus) + { + fprintf_filtered (stream, "void"); + } + + fprintf_filtered (stream, ")"); +} + + +/* Return true iff the j'th overloading of the i'th method of TYPE + is a type conversion operator, like `operator int () { ... }'. + When listing a class's methods, we don't print the return type of + such operators. */ +static int +is_type_conversion_operator (struct type *type, int i, int j) +{ + /* I think the whole idea of recognizing type conversion operators + by their name is pretty terrible. But I don't think our present + data structure gives us any other way to tell. If you know of + some other way, feel free to rewrite this function. */ + char *name = TYPE_FN_FIELDLIST_NAME (type, i); + + if (strncmp (name, "operator", 8) != 0) + return 0; + + name += 8; + if (! strchr (" \t\f\n\r", *name)) + return 0; + + while (strchr (" \t\f\n\r", *name)) + name++; + + if (!('a' <= *name && *name <= 'z') + && !('A' <= *name && *name <= 'Z') + && *name != '_') + /* If this doesn't look like the start of an identifier, then it + isn't a type conversion operator. */ + return 0; + else if (strncmp (name, "new", 3) == 0) + name += 3; + else if (strncmp (name, "delete", 6) == 0) + name += 6; + else + /* If it doesn't look like new or delete, it's a type conversion + operator. */ + return 1; + + /* Is that really the end of the name? */ + if (('a' <= *name && *name <= 'z') + || ('A' <= *name && *name <= 'Z') + || ('0' <= *name && *name <= '9') + || *name == '_') + /* No, so the identifier following "operator" must be a type name, + and this is a type conversion operator. */ + return 1; + + /* That was indeed the end of the name, so it was `operator new' or + `operator delete', neither of which are type conversion operators. */ + return 0; +} + + +/* Given a C++ qualified identifier QID, strip off the qualifiers, + yielding the unqualified name. The return value is a pointer into + the original string. + + It's a pity we don't have this information in some more structured + form. Even the author of this function feels that writing little + parsers like this everywhere is stupid. */ +static char * +remove_qualifiers (char *qid) +{ + 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 */ + char *parenstack = (char *) alloca (strlen (qid)); + char *scan; + char *last = 0; /* The character after the rightmost + `::' token we've seen so far. */ + + for (scan = qid; *scan; scan++) + { + if (quoted) + { + if (*scan == quoted) + quoted = 0; + else if (*scan == '\\' && *(scan + 1)) + scan++; + } + else if (scan[0] == ':' && scan[1] == ':') + { + /* If we're inside parenthesis (i.e., an argument list) or + angle brackets (i.e., a list of template arguments), then + we don't record the position of this :: token, since it's + not relevant to the top-level structure we're trying + to operate on. */ + if (depth == 0) + { + last = scan + 2; + scan++; + } + } + else if (*scan == '"' || *scan == '\'') + quoted = *scan; + else if (*scan == '(') + parenstack[depth++] = ')'; + else if (*scan == '[') + parenstack[depth++] = ']'; + /* We're going to treat <> as a pair of matching characters, + since we're more likely to see those in template id's than + real less-than characters. What a crock. */ + else if (*scan == '<') + parenstack[depth++] = '>'; + else if (*scan == ')' || *scan == ']' || *scan == '>') + { + if (depth > 0 && parenstack[depth - 1] == *scan) + depth--; + else + { + /* We're going to do a little error recovery here. If we + don't find a match for *scan on the paren stack, but + there is something lower on the stack that does match, we + pop the stack to that point. */ + int i; + + for (i = depth - 1; i >= 0; i--) + if (parenstack[i] == *scan) + { + depth = i; + break; + } + } + } + } + + if (last) + return last; + else + /* We didn't find any :: tokens at the top level, so declare the + whole thing an unqualified identifier. */ + return qid; +} + + +/* Print any array sizes, function arguments or close parentheses + needed after the variable name (to describe its type). + Args work like c_type_print_varspec_prefix. */ + +void +c_type_print_varspec_suffix (struct type *type, struct ui_file *stream, + int show, int passed_a_ptr, int demangled_args) +{ + if (type == 0) + return; + + if (TYPE_NAME (type) && show <= 0) + return; + + QUIT; + + switch (TYPE_CODE (type)) + { + case TYPE_CODE_ARRAY: + if (passed_a_ptr) + fprintf_filtered (stream, ")"); + + fprintf_filtered (stream, "["); + if (TYPE_LENGTH (type) >= 0 && TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0 + && TYPE_ARRAY_UPPER_BOUND_TYPE (type) != BOUND_CANNOT_BE_DETERMINED) + fprintf_filtered (stream, "%d", + (TYPE_LENGTH (type) + / TYPE_LENGTH (TYPE_TARGET_TYPE (type)))); + fprintf_filtered (stream, "]"); + + c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 0, 0); + break; + + case TYPE_CODE_MEMBER: + if (passed_a_ptr) + fprintf_filtered (stream, ")"); + c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 0, 0); + break; + + case TYPE_CODE_METHOD: + if (passed_a_ptr) + fprintf_filtered (stream, ")"); + c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 0, 0); + if (passed_a_ptr) + { + c_type_print_args (type, stream); + } + break; + + case TYPE_CODE_PTR: + case TYPE_CODE_REF: + c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 1, 0); + break; + + case TYPE_CODE_FUNC: + if (passed_a_ptr) + fprintf_filtered (stream, ")"); + if (!demangled_args) + { + int i, len = TYPE_NFIELDS (type); + fprintf_filtered (stream, "("); + if (len == 0 + && (TYPE_PROTOTYPED (type) + || current_language->la_language == language_cplus)) + { + fprintf_filtered (stream, "void"); + } + else + for (i = 0; i < len; i++) + { + if (i > 0) + { + fputs_filtered (", ", stream); + wrap_here (" "); + } + c_print_type (TYPE_FIELD_TYPE (type, i), "", stream, -1, 0); + } + fprintf_filtered (stream, ")"); + } + c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, + passed_a_ptr, 0); + break; + + case TYPE_CODE_UNDEF: + case TYPE_CODE_STRUCT: + case TYPE_CODE_UNION: + case TYPE_CODE_ENUM: + case TYPE_CODE_INT: + case TYPE_CODE_FLT: + case TYPE_CODE_VOID: + case TYPE_CODE_ERROR: + case TYPE_CODE_CHAR: + case TYPE_CODE_BOOL: + case TYPE_CODE_SET: + case TYPE_CODE_RANGE: + case TYPE_CODE_STRING: + case TYPE_CODE_BITSTRING: + case TYPE_CODE_COMPLEX: + case TYPE_CODE_TYPEDEF: + case TYPE_CODE_TEMPLATE: + /* These types do not need a suffix. They are listed so that + gcc -Wall will report types that may not have been considered. */ + break; + default: + error ("type not handled in c_type_print_varspec_suffix()"); + break; + } +} + +/* Print the name of the type (or the ultimate pointer target, + function value or array element), or the description of a + structure or union. + + SHOW positive means print details about the type (e.g. enum values), + and print structure elements passing SHOW - 1 for show. + SHOW negative means just print the type name or struct tag if there is one. + If there is no name, print something sensible but concise like + "struct {...}". + SHOW zero means just print the type name or struct tag if there is one. + If there is no name, print something sensible but not as concise like + "struct {int x; int y;}". + + LEVEL is the number of spaces to indent by. + We increase it for some recursive calls. */ + +void +c_type_print_base (struct type *type, struct ui_file *stream, int show, + int level) +{ + int i; + int len, real_len; + int lastval; + char *mangled_name; + char *demangled_name; + char *demangled_no_static; + enum + { + s_none, s_public, s_private, s_protected + } + section_type; + int need_access_label = 0; + int j, len2; + + QUIT; + + wrap_here (" "); + if (type == NULL) + { + fputs_filtered ("<type unknown>", stream); + return; + } + + /* When SHOW is zero or less, and there is a valid type name, then always + just print the type name directly from the type. */ + /* If we have "typedef struct foo {. . .} bar;" do we want to print it + as "struct foo" or as "bar"? Pick the latter, because C++ folk tend + to expect things like "class5 *foo" rather than "struct class5 *foo". */ + + if (show <= 0 + && TYPE_NAME (type) != NULL) + { + c_type_print_modifier (type, stream, 0, 1); + fputs_filtered (TYPE_NAME (type), stream); + return; + } + + CHECK_TYPEDEF (type); + + switch (TYPE_CODE (type)) + { + case TYPE_CODE_TYPEDEF: + case TYPE_CODE_ARRAY: + case TYPE_CODE_PTR: + case TYPE_CODE_MEMBER: + case TYPE_CODE_REF: + case TYPE_CODE_FUNC: + case TYPE_CODE_METHOD: + c_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level); + break; + + case TYPE_CODE_STRUCT: + c_type_print_modifier (type, stream, 0, 1); + /* Note TYPE_CODE_STRUCT and TYPE_CODE_CLASS have the same value, + * so we use another means for distinguishing them. + */ + if (HAVE_CPLUS_STRUCT (type)) + { + switch (TYPE_DECLARED_TYPE (type)) + { + case DECLARED_TYPE_CLASS: + fprintf_filtered (stream, "class "); + break; + case DECLARED_TYPE_UNION: + fprintf_filtered (stream, "union "); + break; + case DECLARED_TYPE_STRUCT: + fprintf_filtered (stream, "struct "); + break; + default: + /* If there is a CPLUS_STRUCT, assume class if not + * otherwise specified in the declared_type field. + */ + fprintf_filtered (stream, "class "); + break; + } /* switch */ + } + else + { + /* If not CPLUS_STRUCT, then assume it's a C struct */ + fprintf_filtered (stream, "struct "); + } + goto struct_union; + + case TYPE_CODE_UNION: + c_type_print_modifier (type, stream, 0, 1); + fprintf_filtered (stream, "union "); + + struct_union: + + /* Print the tag if it exists. + * The HP aCC compiler emits + * a spurious "{unnamed struct}"/"{unnamed union}"/"{unnamed enum}" + * tag for unnamed struct/union/enum's, which we don't + * want to print. + */ + if (TYPE_TAG_NAME (type) != NULL && + strncmp (TYPE_TAG_NAME (type), "{unnamed", 8)) + { + fputs_filtered (TYPE_TAG_NAME (type), stream); + if (show > 0) + fputs_filtered (" ", stream); + } + wrap_here (" "); + if (show < 0) + { + /* If we just printed a tag name, no need to print anything else. */ + if (TYPE_TAG_NAME (type) == NULL) + fprintf_filtered (stream, "{...}"); + } + else if (show > 0 || TYPE_TAG_NAME (type) == NULL) + { + cp_type_print_derivation_info (stream, type); + + fprintf_filtered (stream, "{\n"); + if ((TYPE_NFIELDS (type) == 0) && (TYPE_NFN_FIELDS (type) == 0)) + { + if (TYPE_STUB (type)) + fprintfi_filtered (level + 4, stream, "<incomplete type>\n"); + else + fprintfi_filtered (level + 4, stream, "<no data fields>\n"); + } + + /* Start off with no specific section type, so we can print + one for the first field we find, and use that section type + thereafter until we find another type. */ + + section_type = s_none; + + /* For a class, if all members are private, there's no need + for a "private:" label; similarly, for a struct or union + masquerading as a class, if all members are public, there's + no need for a "public:" label. */ + + if ((TYPE_DECLARED_TYPE (type) == DECLARED_TYPE_CLASS) || + (TYPE_DECLARED_TYPE (type) == DECLARED_TYPE_TEMPLATE)) + { + QUIT; + len = TYPE_NFIELDS (type); + for (i = TYPE_N_BASECLASSES (type); i < len; i++) + if (!TYPE_FIELD_PRIVATE (type, i)) + { + need_access_label = 1; + break; + } + QUIT; + if (!need_access_label) + { + len2 = TYPE_NFN_FIELDS (type); + for (j = 0; j < len2; j++) + { + len = TYPE_FN_FIELDLIST_LENGTH (type, j); + for (i = 0; i < len; i++) + if (!TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type, j), i)) + { + need_access_label = 1; + break; + } + if (need_access_label) + break; + } + } + } + else if ((TYPE_DECLARED_TYPE (type) == DECLARED_TYPE_STRUCT) || + (TYPE_DECLARED_TYPE (type) == DECLARED_TYPE_UNION)) + { + QUIT; + len = TYPE_NFIELDS (type); + for (i = TYPE_N_BASECLASSES (type); i < len; i++) + if (TYPE_FIELD_PRIVATE (type, i) || TYPE_FIELD_PROTECTED (type, i)) + { + need_access_label = 1; + break; + } + QUIT; + if (!need_access_label) + { + len2 = TYPE_NFN_FIELDS (type); + for (j = 0; j < len2; j++) + { + QUIT; + len = TYPE_FN_FIELDLIST_LENGTH (type, j); + for (i = 0; i < len; i++) + if (TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type, j), i) || + TYPE_FN_FIELD_PROTECTED (TYPE_FN_FIELDLIST1 (type, j), i)) + { + need_access_label = 1; + break; + } + if (need_access_label) + break; + } + } + } + + /* If there is a base class for this type, + do not print the field that it occupies. */ + + len = TYPE_NFIELDS (type); + for (i = TYPE_N_BASECLASSES (type); i < len; i++) + { + QUIT; + /* Don't print out virtual function table. */ + /* HP ANSI C++ case */ + if (TYPE_HAS_VTABLE (type) && (STREQN (TYPE_FIELD_NAME (type, i), "__vfp", 5))) + continue; + /* Other compilers */ + if (STREQN (TYPE_FIELD_NAME (type, i), "_vptr", 5) + && is_cplus_marker ((TYPE_FIELD_NAME (type, i))[5])) + continue; + + /* If this is a C++ class we can print the various C++ section + labels. */ + + if (HAVE_CPLUS_STRUCT (type) && need_access_label) + { + if (TYPE_FIELD_PROTECTED (type, i)) + { + if (section_type != s_protected) + { + section_type = s_protected; + fprintfi_filtered (level + 2, stream, + "protected:\n"); + } + } + else if (TYPE_FIELD_PRIVATE (type, i)) + { + if (section_type != s_private) + { + section_type = s_private; + fprintfi_filtered (level + 2, stream, "private:\n"); + } + } + else + { + if (section_type != s_public) + { + section_type = s_public; + fprintfi_filtered (level + 2, stream, "public:\n"); + } + } + } + + print_spaces_filtered (level + 4, stream); + if (TYPE_FIELD_STATIC (type, i)) + { + fprintf_filtered (stream, "static "); + } + c_print_type (TYPE_FIELD_TYPE (type, i), + TYPE_FIELD_NAME (type, i), + stream, show - 1, level + 4); + if (!TYPE_FIELD_STATIC (type, i) + && TYPE_FIELD_PACKED (type, i)) + { + /* It is a bitfield. This code does not attempt + to look at the bitpos and reconstruct filler, + unnamed fields. This would lead to misleading + results if the compiler does not put out fields + for such things (I don't know what it does). */ + fprintf_filtered (stream, " : %d", + TYPE_FIELD_BITSIZE (type, i)); + } + fprintf_filtered (stream, ";\n"); + } + + /* If there are both fields and methods, put a blank line + between them. Make sure to count only method that we will + display; artificial methods will be hidden. */ + len = TYPE_NFN_FIELDS (type); + real_len = 0; + for (i = 0; i < len; i++) + { + struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i); + int len2 = TYPE_FN_FIELDLIST_LENGTH (type, i); + int j; + for (j = 0; j < len2; j++) + if (!TYPE_FN_FIELD_ARTIFICIAL (f, j)) + real_len++; + } + if (real_len > 0 && section_type != s_none) + fprintf_filtered (stream, "\n"); + + /* C++: print out the methods */ + for (i = 0; i < len; i++) + { + struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i); + int j, len2 = TYPE_FN_FIELDLIST_LENGTH (type, i); + char *method_name = TYPE_FN_FIELDLIST_NAME (type, i); + char *name = type_name_no_tag (type); + int is_constructor = name && STREQ (method_name, name); + for (j = 0; j < len2; j++) + { + char *physname = TYPE_FN_FIELD_PHYSNAME (f, j); + int is_full_physname_constructor = + is_constructor_name (physname) + || is_destructor_name (physname) + || method_name[0] == '~'; + + /* Do not print out artificial methods. */ + if (TYPE_FN_FIELD_ARTIFICIAL (f, j)) + continue; + + QUIT; + if (TYPE_FN_FIELD_PROTECTED (f, j)) + { + if (section_type != s_protected) + { + section_type = s_protected; + fprintfi_filtered (level + 2, stream, + "protected:\n"); + } + } + else if (TYPE_FN_FIELD_PRIVATE (f, j)) + { + if (section_type != s_private) + { + section_type = s_private; + fprintfi_filtered (level + 2, stream, "private:\n"); + } + } + else + { + if (section_type != s_public) + { + section_type = s_public; + fprintfi_filtered (level + 2, stream, "public:\n"); + } + } + + print_spaces_filtered (level + 4, stream); + if (TYPE_FN_FIELD_VIRTUAL_P (f, j)) + fprintf_filtered (stream, "virtual "); + else if (TYPE_FN_FIELD_STATIC_P (f, j)) + fprintf_filtered (stream, "static "); + if (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)) == 0) + { + /* Keep GDB from crashing here. */ + fprintf_filtered (stream, "<undefined type> %s;\n", + TYPE_FN_FIELD_PHYSNAME (f, j)); + break; + } + else if (!is_constructor && /* constructors don't have declared types */ + !is_full_physname_constructor && /* " " */ + !is_type_conversion_operator (type, i, j)) + { + type_print (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)), + "", stream, -1); + fputs_filtered (" ", stream); + } + if (TYPE_FN_FIELD_STUB (f, j)) + /* Build something we can demangle. */ + mangled_name = gdb_mangle_name (type, i, j); + else + mangled_name = TYPE_FN_FIELD_PHYSNAME (f, j); + + demangled_name = + cplus_demangle (mangled_name, + DMGL_ANSI | DMGL_PARAMS); + if (demangled_name == NULL) + { + /* in some cases (for instance with the HP demangling), + if a function has more than 10 arguments, + the demangling will fail. + Let's try to reconstruct the function signature from + the symbol information */ + if (!TYPE_FN_FIELD_STUB (f, j)) + cp_type_print_method_args (TYPE_FN_FIELD_ARGS (f, j), "", + method_name, + TYPE_FN_FIELD_STATIC_P (f, j), + stream); + else + fprintf_filtered (stream, "<badly mangled name '%s'>", + mangled_name); + } + else + { + char *p; + char *demangled_no_class + = remove_qualifiers (demangled_name); + + /* get rid of the `static' appended by the demangler */ + p = strstr (demangled_no_class, " static"); + if (p != NULL) + { + int length = p - demangled_no_class; + demangled_no_static = (char *) xmalloc (length + 1); + strncpy (demangled_no_static, demangled_no_class, length); + *(demangled_no_static + length) = '\0'; + fputs_filtered (demangled_no_static, stream); + xfree (demangled_no_static); + } + else + fputs_filtered (demangled_no_class, stream); + xfree (demangled_name); + } + + if (TYPE_FN_FIELD_STUB (f, j)) + xfree (mangled_name); + + fprintf_filtered (stream, ";\n"); + } + } + + fprintfi_filtered (level, stream, "}"); + + if (TYPE_LOCALTYPE_PTR (type) && show >= 0) + fprintfi_filtered (level, stream, " (Local at %s:%d)\n", + TYPE_LOCALTYPE_FILE (type), + TYPE_LOCALTYPE_LINE (type)); + } + if (TYPE_CODE (type) == TYPE_CODE_TEMPLATE) + goto go_back; + break; + + case TYPE_CODE_ENUM: + c_type_print_modifier (type, stream, 0, 1); + /* HP C supports sized enums */ + if (hp_som_som_object_present) + switch (TYPE_LENGTH (type)) + { + case 1: + fputs_filtered ("char ", stream); + break; + case 2: + fputs_filtered ("short ", stream); + break; + default: + break; + } + fprintf_filtered (stream, "enum "); + /* Print the tag name if it exists. + The aCC compiler emits a spurious + "{unnamed struct}"/"{unnamed union}"/"{unnamed enum}" + tag for unnamed struct/union/enum's, which we don't + want to print. */ + if (TYPE_TAG_NAME (type) != NULL && + strncmp (TYPE_TAG_NAME (type), "{unnamed", 8)) + { + fputs_filtered (TYPE_TAG_NAME (type), stream); + if (show > 0) + fputs_filtered (" ", stream); + } + + wrap_here (" "); + if (show < 0) + { + /* If we just printed a tag name, no need to print anything else. */ + if (TYPE_TAG_NAME (type) == NULL) + fprintf_filtered (stream, "{...}"); + } + else if (show > 0 || TYPE_TAG_NAME (type) == NULL) + { + fprintf_filtered (stream, "{"); + len = TYPE_NFIELDS (type); + lastval = 0; + for (i = 0; i < len; i++) + { + QUIT; + if (i) + fprintf_filtered (stream, ", "); + wrap_here (" "); + fputs_filtered (TYPE_FIELD_NAME (type, i), stream); + if (lastval != TYPE_FIELD_BITPOS (type, i)) + { + fprintf_filtered (stream, " = %d", TYPE_FIELD_BITPOS (type, i)); + lastval = TYPE_FIELD_BITPOS (type, i); + } + lastval++; + } + fprintf_filtered (stream, "}"); + } + break; + + case TYPE_CODE_VOID: + fprintf_filtered (stream, "void"); + break; + + case TYPE_CODE_UNDEF: + fprintf_filtered (stream, "struct <unknown>"); + break; + + case TYPE_CODE_ERROR: + fprintf_filtered (stream, "<unknown type>"); + break; + + case TYPE_CODE_RANGE: + /* This should not occur */ + fprintf_filtered (stream, "<range type>"); + break; + + case TYPE_CODE_TEMPLATE: + /* Called on "ptype t" where "t" is a template. + Prints the template header (with args), e.g.: + template <class T1, class T2> class " + and then merges with the struct/union/class code to + print the rest of the definition. */ + c_type_print_modifier (type, stream, 0, 1); + fprintf_filtered (stream, "template <"); + for (i = 0; i < TYPE_NTEMPLATE_ARGS (type); i++) + { + struct template_arg templ_arg; + templ_arg = TYPE_TEMPLATE_ARG (type, i); + fprintf_filtered (stream, "class %s", templ_arg.name); + if (i < TYPE_NTEMPLATE_ARGS (type) - 1) + fprintf_filtered (stream, ", "); + } + fprintf_filtered (stream, "> class "); + /* Yuck, factor this out to a subroutine so we can call + it and return to the point marked with the "goback:" label... - RT */ + goto struct_union; + go_back: + if (TYPE_NINSTANTIATIONS (type) > 0) + { + fprintf_filtered (stream, "\ntemplate instantiations:\n"); + for (i = 0; i < TYPE_NINSTANTIATIONS (type); i++) + { + fprintf_filtered (stream, " "); + c_type_print_base (TYPE_INSTANTIATION (type, i), stream, 0, level); + if (i < TYPE_NINSTANTIATIONS (type) - 1) + fprintf_filtered (stream, "\n"); + } + } + break; + + default: + /* Handle types not explicitly handled by the other cases, + such as fundamental types. For these, just print whatever + the type name is, as recorded in the type itself. If there + is no type name, then complain. */ + if (TYPE_NAME (type) != NULL) + { + c_type_print_modifier (type, stream, 0, 1); + fputs_filtered (TYPE_NAME (type), stream); + } + else + { + /* At least for dump_symtab, it is important that this not be + an error (). */ + fprintf_filtered (stream, "<invalid type code %d>", + TYPE_CODE (type)); + } + break; + } +} |