| /* Support for printing Java types for GDB, the GNU debugger. |
| Copyright 1997, 1998, 1999, 2000 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 "symtab.h" |
| #include "gdbtypes.h" |
| #include "value.h" |
| #include "demangle.h" |
| #include "jv-lang.h" |
| #include "gdb_string.h" |
| #include "typeprint.h" |
| #include "c-lang.h" |
| #include "cp-abi.h" |
| |
| /* Local functions */ |
| |
| static void java_type_print_base (struct type * type, |
| struct ui_file *stream, int show, |
| int level); |
| |
| static void |
| java_type_print_derivation_info (struct ui_file *stream, struct type *type) |
| { |
| char *name; |
| int i; |
| int n_bases; |
| int prev; |
| |
| n_bases = TYPE_N_BASECLASSES (type); |
| |
| for (i = 0, prev = 0; i < n_bases; i++) |
| { |
| int kind; |
| |
| kind = BASETYPE_VIA_VIRTUAL (type, i) ? 'I' : 'E'; |
| |
| fputs_filtered (kind == prev ? ", " |
| : kind == 'I' ? " implements " |
| : " extends ", |
| stream); |
| prev = kind; |
| name = type_name_no_tag (TYPE_BASECLASS (type, i)); |
| |
| fprintf_filtered (stream, "%s", name ? name : "(null)"); |
| } |
| |
| if (i > 0) |
| fputs_filtered (" ", stream); |
| } |
| |
| /* 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. */ |
| |
| static void |
| java_type_print_base (struct type *type, struct ui_file *stream, int show, |
| int level) |
| { |
| int i; |
| int len; |
| char *mangled_name; |
| char *demangled_name; |
| 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 (show <= 0 |
| && TYPE_NAME (type) != NULL) |
| { |
| fputs_filtered (TYPE_NAME (type), stream); |
| return; |
| } |
| |
| CHECK_TYPEDEF (type); |
| |
| switch (TYPE_CODE (type)) |
| { |
| case TYPE_CODE_PTR: |
| java_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level); |
| break; |
| |
| case TYPE_CODE_STRUCT: |
| if (TYPE_TAG_NAME (type) != NULL && TYPE_TAG_NAME (type)[0] == '[') |
| { /* array type */ |
| char *name = java_demangle_type_signature (TYPE_TAG_NAME (type)); |
| fputs_filtered (name, stream); |
| xfree (name); |
| break; |
| } |
| |
| if (show >= 0) |
| fprintf_filtered (stream, "class "); |
| |
| if (TYPE_TAG_NAME (type) != NULL) |
| { |
| 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) |
| { |
| java_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"); |
| } |
| |
| /* 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. */ |
| if (strncmp (TYPE_FIELD_NAME (type, i), "_vptr", 5) == 0 |
| && is_cplus_marker ((TYPE_FIELD_NAME (type, i))[5])) |
| continue; |
| |
| /* Don't print the dummy field "class". */ |
| if (strncmp (TYPE_FIELD_NAME (type, i), "class", 5) == 0) |
| continue; |
| |
| print_spaces_filtered (level + 4, stream); |
| |
| if (HAVE_CPLUS_STRUCT (type)) |
| { |
| if (TYPE_FIELD_PROTECTED (type, i)) |
| fprintf_filtered (stream, "protected "); |
| else if (TYPE_FIELD_PRIVATE (type, i)) |
| fprintf_filtered (stream, "private "); |
| else |
| fprintf_filtered (stream, "public "); |
| } |
| |
| if (TYPE_FIELD_STATIC (type, i)) |
| fprintf_filtered (stream, "static "); |
| |
| java_print_type (TYPE_FIELD_TYPE (type, i), |
| TYPE_FIELD_NAME (type, i), |
| stream, show - 1, level + 4); |
| |
| fprintf_filtered (stream, ";\n"); |
| } |
| |
| /* If there are both fields and methods, put a space between. */ |
| len = TYPE_NFN_FIELDS (type); |
| if (len) |
| fprintf_filtered (stream, "\n"); |
| |
| /* Print out the methods */ |
| |
| for (i = 0; i < len; i++) |
| { |
| struct fn_field *f; |
| int j; |
| char *method_name; |
| char *name; |
| int is_constructor; |
| int n_overloads; |
| |
| f = TYPE_FN_FIELDLIST1 (type, i); |
| n_overloads = TYPE_FN_FIELDLIST_LENGTH (type, i); |
| method_name = TYPE_FN_FIELDLIST_NAME (type, i); |
| name = type_name_no_tag (type); |
| is_constructor = name && strcmp (method_name, name) == 0; |
| |
| for (j = 0; j < n_overloads; j++) |
| { |
| char *physname; |
| int is_full_physname_constructor; |
| |
| physname = TYPE_FN_FIELD_PHYSNAME (f, j); |
| |
| is_full_physname_constructor |
| = (is_constructor_name (physname) |
| || is_destructor_name (physname)); |
| |
| QUIT; |
| |
| print_spaces_filtered (level + 4, stream); |
| |
| if (TYPE_FN_FIELD_PROTECTED (f, j)) |
| fprintf_filtered (stream, "protected "); |
| else if (TYPE_FN_FIELD_PRIVATE (f, j)) |
| fprintf_filtered (stream, "private "); |
| else if (TYPE_FN_FIELD_PUBLIC (f, j)) |
| fprintf_filtered (stream, "public "); |
| |
| if (TYPE_FN_FIELD_ABSTRACT (f, j)) |
| fprintf_filtered (stream, "abstract "); |
| if (TYPE_FN_FIELD_STATIC (f, j)) |
| fprintf_filtered (stream, "static "); |
| if (TYPE_FN_FIELD_FINAL (f, j)) |
| fprintf_filtered (stream, "final "); |
| if (TYPE_FN_FIELD_SYNCHRONIZED (f, j)) |
| fprintf_filtered (stream, "synchronized "); |
| if (TYPE_FN_FIELD_NATIVE (f, j)) |
| fprintf_filtered (stream, "native "); |
| |
| 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 && !is_full_physname_constructor) |
| { |
| 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 | DMGL_JAVA); |
| |
| if (demangled_name == NULL) |
| demangled_name = xstrdup (mangled_name); |
| |
| { |
| char *demangled_no_class; |
| char *ptr; |
| |
| ptr = demangled_no_class = demangled_name; |
| |
| while (1) |
| { |
| char c; |
| |
| c = *ptr++; |
| |
| if (c == 0 || c == '(') |
| break; |
| if (c == '.') |
| demangled_no_class = ptr; |
| } |
| |
| 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, "}"); |
| } |
| break; |
| |
| default: |
| c_type_print_base (type, stream, show, level); |
| } |
| } |
| |
| /* LEVEL is the depth to indent lines by. */ |
| |
| extern void c_type_print_varspec_suffix (struct type *, struct ui_file *, |
| int, int, int); |
| |
| void |
| java_print_type (struct type *type, char *varstring, struct ui_file *stream, |
| int show, int level) |
| { |
| int demangled_args; |
| |
| java_type_print_base (type, stream, show, level); |
| |
| if (varstring != NULL && *varstring != '\0') |
| { |
| fputs_filtered (" ", stream); |
| 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); |
| } |