[deliverable/binutils-gdb.git] / gdb / testsuite / lib / cp-support.exp

# This test code is part of GDB, the GNU debugger.

# Copyright 2003, 2004, 2007, 2008, 2009 Free Software Foundation, Inc.

# 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 3 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, see <http://www.gnu.org/licenses/>.

# Auxiliary function to check for known problems.
#
# EXPECTED_STRING is the string expected by the test.
#
# ACTUAL_STRING is the actual string output by gdb.
#
# ERRATA_TABLE is a list of lines of the form:
#
#  { expected-string broken-string {eval-block} }
#
# If there is a line for the given EXPECTED_STRING, and if the
# ACTUAL_STRING output by gdb is the same as the BROKEN_STRING in the
# table, then I eval the eval-block.

proc cp_check_errata { expected_string actual_string errata_table } {
    foreach erratum $errata_table {
	if { "$expected_string" == [lindex $erratum 0]
	&&   "$actual_string"   == [lindex $erratum 1] } then {
	    eval [lindex $erratum 2]
	}
    }
}

# Test ptype of a class.
#
# Different C++ compilers produce different output.  To accommodate all
# the variations listed below, I read the output of "ptype" and process
# each line, matching it to the class description given in the
# parameters.
#
# IN_COMMAND and IN_TESTNAME are the command and testname for
# gdb_test_multiple.  If IN_TESTNAME is the empty string, then it
# defaults to IN_COMMAND.
#
# IN_KEY is "class" or "struct".  For now, I ignore it, and allow either
# "class" or "struct" in the output, as long as the access specifiers all
# work out okay.
#
# IN_TAG is the class tag or structure tag.
#
# IN_CLASS_TABLE is a list of class information.  Each entry contains a
# keyword and some values.  The keywords and their values are:
#
#   { base "base-declaration" }
#
#      the class has a base with the given declaration.
#
#   { vbase "name" }
#
#      the class has a virtual base pointer with the given name.  this
#      is for gcc 2.95.3, which emits ptype entries for the virtual base
#      pointers.  the vbase list includes both indirect and direct
#      virtual base classes (indeed, a virtual base is usually
#      indirect), so this information cannot be derived from the base
#      declarations.
#
#   { field "access" "declaration" }
#
#      the class has a data field with the given access type and the
#      given declaration.
#
#   { method "access" "declaration" }
#
#      the class has a member function with the given access type
#      and the given declaration.
#
# If you test the same class declaration more than once, you can specify
# IN_CLASS_TABLE as "ibid".  "ibid" means: look for a previous class
# table that had the same IN_KEY and IN_TAG, and re-use that table.
#
# IN_TAIL is the expected text after the close brace, specifically the "*"
# in "struct { ... } *".  This is an optional parameter.  The default
# value is "", for no tail.
#
# IN_ERRATA_TABLE is a list of errata entries.  See cp_check_errata for the
# format of the errata table.  Note: the errata entries are not subject to
# demangler syntax adjustment, so you have to make a bigger table
# with lines for each output variation.
# 
# gdb can vary the output of ptype in several ways:
#
# . CLASS/STRUCT
#
#   The output can start with either "class" or "struct", depending on
#   what the symbol table reader in gdb decides.  This is usually
#   unrelated to the original source code.
#
#     dwarf-2  debug info distinguishes class/struct, but gdb ignores it
#     stabs+   debug info does not distinguish class/struct
#     hp       debug info distinguishes class/struct, and gdb honors it
#
#   I tried to accommodate this with regular expressions such as
#   "((class|struct) A \{ public:|struct A \{)", but that turns into a
#   hairy mess because of optional private virtual base pointers and
#   optional public synthetic operators.  This is the big reason I gave
#   up on regular expressions and started parsing the output.
#
# . REDUNDANT ACCESS SPECIFIER
#
#   In "class { private: ... }" or "struct { public: ... }", gdb might
#   or might not emit a redundant initial access specifier, depending
#   on the gcc version.
#
# . VIRTUAL BASE POINTERS
#
#   If a class has virtual bases, either direct or indirect, the class
#   will have virtual base pointers.  With gcc 2.95.3, gdb prints lines
#   for these virtual base pointers.  This does not happen with gcc
#   3.3.4, gcc 3.4.1, or hp acc A.03.45.
#
#   I accept these lines.  These lines are optional; but if I see one of
#   these lines, then I expect to see all of them.
#
#   Note: drow considers printing these lines to be a bug in gdb.
#
# . SYNTHETIC METHODS
#
#   A C++ compiler may synthesize some methods: an assignment
#   operator, a copy constructor, a constructor, and a destructor.  The
#   compiler might include debug information for these methods.
#
#     dwarf-2  gdb does not show these methods
#     stabs+   gdb shows these methods
#     hp       gdb does not show these methods
#
#   I accept these methods.  These lines are optional, and any or
#   all of them might appear, mixed in anywhere in the regular methods.
#
#   With gcc v2, the synthetic copy-ctor and ctor have an additional
#   "int" parameter at the beginning, the "in-charge" flag.
#
# . DEMANGLER SYNTAX VARIATIONS
#
#   Different demanglers produce "int foo(void)" versus "int foo()",
#   "const A&" versus "const A &", and so on.
#
# TESTED WITH
#
#   gcc 2.95.3 -gdwarf-2
#   gcc 2.95.3 -gstabs+
#   gcc 3.3.4 -gdwarf-2
#   gcc 3.3.4 -gstabs+
#   gcc 3.4.1 -gdwarf-2
#   gcc 3.4.1 -gstabs+
#   gcc HEAD 20040731 -gdwarf-2
#   gcc HEAD 20040731 -gstabs+
# 
# TODO
#
# Tagless structs.
#
# "A*" versus "A *" and "A&" versus "A &" in user methods.
#
# Test with hp ACC.
#
# -- chastain 2004-08-07

proc cp_test_ptype_class { in_command in_testname in_key in_tag in_class_table { in_tail "" } { in_errata_table { } } } {
    global gdb_prompt
    set wsopt "\[\r\n\t \]*"

    # The test name defaults to the command.

    if { "$in_testname" == "" } then { set in_testname "$in_command" }

    # Save class tables in a history array for reuse.

    global cp_class_table_history
    if { $in_class_table == "ibid" } then {
	if { ! [info exists cp_class_table_history("$in_key,$in_tag") ] } then {
	    fail "$in_testname // bad ibid"
	    return
	}
	set in_class_table $cp_class_table_history("$in_key,$in_tag")
    } else {
	set cp_class_table_history("$in_key,$in_tag") $in_class_table
    }

    # Split the class table into separate tables.

    set list_bases   { }
    set list_vbases  { }
    set list_fields  { }
    set list_methods { }

    foreach class_line $in_class_table {
	switch [lindex $class_line 0] {
	    "base"   { lappend list_bases   [lindex $class_line 1] }
	    "vbase"  { lappend list_vbases  [lindex $class_line 1] }
	    "field"  { lappend list_fields  [lrange $class_line 1 2] }
	    "method" { lappend list_methods [lrange $class_line 1 2] }
	    default  { fail "$in_testname // bad line in class table: $class_line"; return; }
	}
    }

    # Construct a list of synthetic operators.
    # These are: { count ccess-type regular-expression }.

    set list_synth { }
    lappend list_synth [list 0 "public" "$in_tag & operator=\\($in_tag const ?&\\);"]
    lappend list_synth [list 0 "public" "$in_tag\\((int,|) ?$in_tag const ?&\\);"]
    lappend list_synth [list 0 "public" "$in_tag\\((int|void|)\\);"]

    # Actually do the ptype.

    set parse_okay 0
    gdb_test_multiple "$in_command" "$in_testname // parse failed" {
	-re "type = (struct|class)${wsopt}(\[A-Za-z0-9_\]*)${wsopt}((:\[^\{\]*)?)${wsopt}\{(.*)\}${wsopt}(\[^\r\n\]*)\[\r\n\]+$gdb_prompt $" {
	    set parse_okay          1
	    set actual_key          $expect_out(1,string)
	    set actual_tag          $expect_out(2,string)
	    set actual_base_string  $expect_out(3,string)
	    set actual_body         $expect_out(5,string)
	    set actual_tail         $expect_out(6,string)
	}
    }
    if { ! $parse_okay } then { return }

    # Check the actual key.  It would be nice to require that it match
    # the input key, but gdb does not support that.  For now, accept any
    # $actual_key as long as the access property of each field/method
    # matches.

    switch "$actual_key" {
	"class"  { set access "private" }
	"struct" { set access "public"  }
	default  {
	    cp_check_errata "class"  "$actual_key" $in_errata_table
	    cp_check_errata "struct" "$actual_key" $in_errata_table
	    fail "$in_testname // wrong key: $actual_key"
	    return
	}
    }

    # Check the actual tag.

    if { "$actual_tag" != "$in_tag" } then {
	cp_check_errata "$in_tag" "$actual_tag" $in_errata_table
	fail "$in_testname // wrong tag: $actual_tag"
	return
    }

    # Check the actual bases.
    # First parse them into a list.

    set list_actual_bases { }
    if { "$actual_base_string" != "" } then {
	regsub "^:${wsopt}" $actual_base_string "" actual_base_string
	set list_actual_bases [split $actual_base_string ","]
    }

    # Check the base count.

    if { [llength $list_actual_bases] < [llength $list_bases] } then {
	fail "$in_testname // too few bases"
	return
    }
    if { [llength $list_actual_bases] > [llength $list_bases] } then {
	fail "$in_testname // too many bases"
	return
    }

    # Check each base.

    foreach actual_base $list_actual_bases {
	set actual_base [string trim $actual_base]
	set base [lindex $list_bases 0]
	if { "$actual_base" != "$base" } then {
	    cp_check_errata "$base" "$actual_base" $in_errata_table
	    fail "$in_testname // wrong base: $actual_base"
	    return
	}
	set list_bases [lreplace $list_bases 0 0]
    }

    # Parse each line in the body.

    set last_was_access 0
    set vbase_match 0

    foreach actual_line [split $actual_body "\r\n"] {

	# Chomp the line.

	set actual_line [string trim $actual_line]
	if { "$actual_line" == "" } then { continue }

	# Access specifiers.

	if { [regexp "^(public|protected|private)${wsopt}:\$" "$actual_line" s0 s1] } then {
	    set access "$s1"
	    if { $last_was_access } then {
		fail "$in_testname // redundant access specifier"
		return
	    }
	    set last_was_access 1
	    continue
	} else {
	    set last_was_access 0
	}

	# Optional virtual base pointer.

	if { [ llength $list_vbases ] > 0 } then {
	    set vbase [lindex $list_vbases 0]
	    if { [ regexp "$vbase \\*(_vb.|_vb\\\$|__vb_)\[0-9\]*$vbase;" $actual_line ] } then {
		if { "$access" != "private" } then {
		    cp_check_errata "private" "$access" $in_errata_table
		    fail "$in_testname // wrong access specifier for virtual base: $access"
		    return
		}
		set list_vbases [lreplace $list_vbases 0 0]
		set vbase_match 1
		continue
	    }
	}

	# Data field.

	if { [llength $list_fields] > 0 } then {
	    set field_access [lindex [lindex $list_fields 0] 0]
	    set field_decl   [lindex [lindex $list_fields 0] 1]
	    if { "$actual_line" == "$field_decl" } then {
		if { "$access" != "$field_access" } then {
		    cp_check_errata "$field_access" "$access" $in_errata_table
		    fail "$in_testname // wrong access specifier for field: $access"
		    return
		}
		set list_fields [lreplace $list_fields 0 0]
		continue
	    }

	    # Data fields must appear before synths and methods.
	    cp_check_errata "$field_decl" "$actual_line" $in_errata_table
	    fail "$in_testname // unrecognized line type 1: $actual_line"
	    return
	}

	# Method function.

	if { [llength $list_methods] > 0 } then {
	    set method_access [lindex [lindex $list_methods 0] 0]
	    set method_decl   [lindex [lindex $list_methods 0] 1]
	    if { "$actual_line" == "$method_decl" } then {
		if { "$access" != "$method_access" } then {
		    cp_check_errata "$method_access" "$access" $in_errata_table
		    fail "$in_testname // wrong access specifier for method: $access"
		    return
		}
		set list_methods [lreplace $list_methods 0 0]
		continue
	    }

	    # gcc 2.95.3 shows "foo()" as "foo(void)".
	    regsub -all "\\(\\)" $method_decl "(void)" method_decl
	    if { "$actual_line" == "$method_decl" } then {
		if { "$access" != "$method_access" } then {
		    cp_check_errata "$method_access" "$access" $in_errata_table
		    fail "$in_testname // wrong access specifier for method: $access"
		    return
		}
		set list_methods [lreplace $list_methods 0 0]
		continue
	    }
	}

	# Synthetic operators.  These are optional and can be mixed in
	# with the methods in any order, but duplicates are wrong.
	#
	# This test must come after the user methods, so that a user
	# method which matches a synth-method pattern is treated
	# properly as a user method.

	set synth_match 0
	for { set isynth 0 } { $isynth < [llength $list_synth] } { incr isynth } {
	    set synth         [lindex $list_synth $isynth]
	    set synth_count   [lindex $synth 0]
	    set synth_access  [lindex $synth 1]
	    set synth_re      [lindex $synth 2]

	    if { [ regexp "$synth_re" "$actual_line" ] } then {

		if { "$access" != "$synth_access" } then {
		    cp_check_errata "$synth_access" "$access" $in_errata_table
		    fail "$in_testname // wrong access specifier for synthetic operator: $access"
		    return
		}

		if { $synth_count > 0 } then {
		    cp_check_errata "$actual_line" "$actual_line" $in_errata_table
		    fail "$in_testname // duplicate synthetic operator: $actual_line"
		}

		# Update the count in list_synth.

		incr synth_count 
		set synth [list $synth_count $synth_access "$synth_re"]
		set list_synth [lreplace $list_synth $isynth $isynth $synth]

		# Match found.

		set synth_match 1
		break
	    }
	}
	if { $synth_match } then { continue }

	# Unrecognized line.

	if { [llength $list_methods] > 0 } then {
	    set method_decl [lindex [lindex $list_methods 0] 1]
	    cp_check_errata "$method_decl" "$actual_line" $in_errata_table
	}

	fail "$in_testname // unrecognized line type 2: $actual_line"
	return
    }

    # Check for missing elements.

    if { $vbase_match } then {
	if { [llength $list_vbases] > 0 } then {
	    fail "$in_testname // missing virtual base pointers"
	    return
	}
    }

    if { [llength $list_fields] > 0 } then {
	fail "$in_testname // missing fields"
	return
    }

    if { [llength $list_methods] > 0 } then {
	fail "$in_testname // missing methods"
	return
    }

    # Check the tail.

    set actual_tail [string trim $actual_tail]
    if { "$actual_tail" != "$in_tail" } then {
	cp_check_errata "$in_tail" "$actual_tail" $in_errata_table
	fail "$in_testname // wrong tail: $actual_tail"
	return
    }

    # It all worked!

    pass "$in_testname"
    return
}
Commit	Line	Data
78c90502 MC	1	# This test code is part of GDB, the GNU debugger.
78c90502 MC	2
0fb0cc75	3	# Copyright 2003, 2004, 2007, 2008, 2009 Free Software Foundation, Inc.
78c90502 MC	4
	5	# This program is free software; you can redistribute it and/or modify
	6	# it under the terms of the GNU General Public License as published by
e22f8b7c	7	# the Free Software Foundation; either version 3 of the License, or
78c90502	8	# (at your option) any later version.
e22f8b7c	9	#
78c90502 MC	10	# This program is distributed in the hope that it will be useful,
	11	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	# GNU General Public License for more details.
e22f8b7c	14	#
78c90502	15	# You should have received a copy of the GNU General Public License
e22f8b7c	16	# along with this program. If not, see <http://www.gnu.org/licenses/>.
78c90502 MC	17
	18	# Auxiliary function to check for known problems.
	19	#
	20	# EXPECTED_STRING is the string expected by the test.
	21	#
	22	# ACTUAL_STRING is the actual string output by gdb.
	23	#
	24	# ERRATA_TABLE is a list of lines of the form:
	25	#
	26	# { expected-string broken-string {eval-block} }
	27	#
	28	# If there is a line for the given EXPECTED_STRING, and if the
	29	# ACTUAL_STRING output by gdb is the same as the BROKEN_STRING in the
	30	# table, then I eval the eval-block.
	31
	32	proc cp_check_errata { expected_string actual_string errata_table } {
	33	foreach erratum $errata_table {
	34	if { "$expected_string" == [lindex $erratum 0]
	35	&& "$actual_string" == [lindex $erratum 1] } then {
	36	eval [lindex $erratum 2]
	37	}
	38	}
	39	}
	40
	41	# Test ptype of a class.
	42	#
	43	# Different C++ compilers produce different output. To accommodate all
	44	# the variations listed below, I read the output of "ptype" and process
	45	# each line, matching it to the class description given in the
	46	# parameters.
	47	#
	48	# IN_COMMAND and IN_TESTNAME are the command and testname for
	49	# gdb_test_multiple. If IN_TESTNAME is the empty string, then it
	50	# defaults to IN_COMMAND.
	51	#
	52	# IN_KEY is "class" or "struct". For now, I ignore it, and allow either
	53	# "class" or "struct" in the output, as long as the access specifiers all
	54	# work out okay.
	55	#
	56	# IN_TAG is the class tag or structure tag.
	57	#
	58	# IN_CLASS_TABLE is a list of class information. Each entry contains a
	59	# keyword and some values. The keywords and their values are:
	60	#
	61	# { base "base-declaration" }
	62	#
	63	# the class has a base with the given declaration.
	64	#
	65	# { vbase "name" }
	66	#
	67	# the class has a virtual base pointer with the given name. this
	68	# is for gcc 2.95.3, which emits ptype entries for the virtual base
	69	# pointers. the vbase list includes both indirect and direct
	70	# virtual base classes (indeed, a virtual base is usually
	71	# indirect), so this information cannot be derived from the base
	72	# declarations.
	73	#
	74	# { field "access" "declaration" }
	75	#
	76	# the class has a data field with the given access type and the
	77	# given declaration.
	78	#
	79	# { method "access" "declaration" }
	80	#
81	# the class has a member function with the given access type
82	# and the given declaration.
83	#
84	# If you test the same class declaration more than once, you can specify
85	# IN_CLASS_TABLE as "ibid". "ibid" means: look for a previous class
86	# table that had the same IN_KEY and IN_TAG, and re-use that table.
87	#
88	# IN_TAIL is the expected text after the close brace, specifically the "*"
89	# in "struct { ... } *". This is an optional parameter. The default
90	# value is "", for no tail.
91	#
92	# IN_ERRATA_TABLE is a list of errata entries. See cp_check_errata for the
93	# format of the errata table. Note: the errata entries are not subject to
94	# demangler syntax adjustment, so you have to make a bigger table
95	# with lines for each output variation.
96	#
97	# gdb can vary the output of ptype in several ways:
98	#
99	# . CLASS/STRUCT
100	#
101	# The output can start with either "class" or "struct", depending on
102	# what the symbol table reader in gdb decides. This is usually
103	# unrelated to the original source code.
104	#
105	# dwarf-2 debug info distinguishes class/struct, but gdb ignores it
106	# stabs+ debug info does not distinguish class/struct
107	# hp debug info distinguishes class/struct, and gdb honors it
108	#
109	# I tried to accommodate this with regular expressions such as
110	# "((class\|struct) A \{ public:\|struct A \{)", but that turns into a
111	# hairy mess because of optional private virtual base pointers and
112	# optional public synthetic operators. This is the big reason I gave
113	# up on regular expressions and started parsing the output.
114	#
115	# . REDUNDANT ACCESS SPECIFIER
116	#
117	# In "class { private: ... }" or "struct { public: ... }", gdb might
118	# or might not emit a redundant initial access specifier, depending
119	# on the gcc version.
120	#
121	# . VIRTUAL BASE POINTERS
122	#
123	# If a class has virtual bases, either direct or indirect, the class
124	# will have virtual base pointers. With gcc 2.95.3, gdb prints lines
125	# for these virtual base pointers. This does not happen with gcc
126	# 3.3.4, gcc 3.4.1, or hp acc A.03.45.
127	#
128	# I accept these lines. These lines are optional; but if I see one of
129	# these lines, then I expect to see all of them.
130	#
131	# Note: drow considers printing these lines to be a bug in gdb.
132	#
133	# . SYNTHETIC METHODS
134	#
135	# A C++ compiler may synthesize some methods: an assignment
136	# operator, a copy constructor, a constructor, and a destructor. The
137	# compiler might include debug information for these methods.
138	#
139	# dwarf-2 gdb does not show these methods
140	# stabs+ gdb shows these methods
141	# hp gdb does not show these methods
142	#
143	# I accept these methods. These lines are optional, and any or
144	# all of them might appear, mixed in anywhere in the regular methods.
145	#
146	# With gcc v2, the synthetic copy-ctor and ctor have an additional
147	# "int" parameter at the beginning, the "in-charge" flag.
148	#
149	# . DEMANGLER SYNTAX VARIATIONS
150	#
151	# Different demanglers produce "int foo(void)" versus "int foo()",
152	# "const A&" versus "const A &", and so on.
153	#
154	# TESTED WITH
155	#
156	# gcc 2.95.3 -gdwarf-2
157	# gcc 2.95.3 -gstabs+
158	# gcc 3.3.4 -gdwarf-2
159	# gcc 3.3.4 -gstabs+
160	# gcc 3.4.1 -gdwarf-2
161	# gcc 3.4.1 -gstabs+
162	# gcc HEAD 20040731 -gdwarf-2
163	# gcc HEAD 20040731 -gstabs+
164	#
165	# TODO
166	#
167	# Tagless structs.
168	#
169	# "A" versus "A " and "A&" versus "A &" in user methods.
170	#
171	# Test with hp ACC.
172	#
173	# -- chastain 2004-08-07
174
175	proc cp_test_ptype_class { in_command in_testname in_key in_tag in_class_table { in_tail "" } { in_errata_table { } } } {
176	global gdb_prompt
177	set wsopt "\[\r\n\t \]*"
178
179	# The test name defaults to the command.
180
181	if { "$in_testname" == "" } then { set in_testname "$in_command" }
182
183	# Save class tables in a history array for reuse.
184
185	global cp_class_table_history
186	if { $in_class_table == "ibid" } then {
187	if { ! [info exists cp_class_table_history("$in_key,$in_tag") ] } then {
188	fail "$in_testname // bad ibid"
189	return
190	}
191	set in_class_table $cp_class_table_history("$in_key,$in_tag")
192	} else {
193	set cp_class_table_history("$in_key,$in_tag") $in_class_table
194	}
195
196	# Split the class table into separate tables.
197
198	set list_bases { }
199	set list_vbases { }
200	set list_fields { }
201	set list_methods { }
202
203	foreach class_line $in_class_table {
204	switch [lindex $class_line 0] {
205	"base" { lappend list_bases [lindex $class_line 1] }
206	"vbase" { lappend list_vbases [lindex $class_line 1] }
207	"field" { lappend list_fields [lrange $class_line 1 2] }
208	"method" { lappend list_methods [lrange $class_line 1 2] }
209	default { fail "$in_testname // bad line in class table: $class_line"; return; }
210	}
211	}
212
213	# Construct a list of synthetic operators.
214	# These are: { count ccess-type regular-expression }.
215
216	set list_synth { }
217	lappend list_synth [list 0 "public" "$in_tag & operator=\\($in_tag const ?&\\);"]
218	lappend list_synth [list 0 "public" "$in_tag\\((int,\|) ?$in_tag const ?&\\);"]
219	lappend list_synth [list 0 "public" "$in_tag\\((int\|void\|)\\);"]
220
221	# Actually do the ptype.
222
223	set parse_okay 0
224	gdb_test_multiple "$in_command" "$in_testname // parse failed" {
225	-re "type = (struct\|class)${wsopt}(\[A-Za-z0-9_\])${wsopt}((:\[^\{\])?)${wsopt}\{(.)\}${wsopt}(\[^\r\n\])\[\r\n\]+$gdb_prompt $" {
226	set parse_okay 1
227	set actual_key $expect_out(1,string)
228	set actual_tag $expect_out(2,string)
229	set actual_base_string $expect_out(3,string)
230	set actual_body $expect_out(5,string)
231	set actual_tail $expect_out(6,string)
232	}
233	}
234	if { ! $parse_okay } then { return }
235
236	# Check the actual key. It would be nice to require that it match
237	# the input key, but gdb does not support that. For now, accept any
238	# $actual_key as long as the access property of each field/method
239	# matches.
240
241	switch "$actual_key" {
242	"class" { set access "private" }
243	"struct" { set access "public" }
244	default {
245	cp_check_errata "class" "$actual_key" $in_errata_table
246	cp_check_errata "struct" "$actual_key" $in_errata_table
247	fail "$in_testname // wrong key: $actual_key"
248	return
249	}
250	}
251
252	# Check the actual tag.
253
254	if { "$actual_tag" != "$in_tag" } then {
255	cp_check_errata "$in_tag" "$actual_tag" $in_errata_table
256	fail "$in_testname // wrong tag: $actual_tag"
257	return
258	}
259
260	# Check the actual bases.
261	# First parse them into a list.
262
263	set list_actual_bases { }
264	if { "$actual_base_string" != "" } then {
265	regsub "^:${wsopt}" $actual_base_string "" actual_base_string
266	set list_actual_bases [split $actual_base_string ","]
267	}
268
269	# Check the base count.
270
271	if { [llength $list_actual_bases] < [llength $list_bases] } then {
272	fail "$in_testname // too few bases"
273	return
274	}
275	if { [llength $list_actual_bases] > [llength $list_bases] } then {
276	fail "$in_testname // too many bases"
277	return
278	}
279
280	# Check each base.
281
282	foreach actual_base $list_actual_bases {
283	set actual_base [string trim $actual_base]
284	set base [lindex $list_bases 0]
285	if { "$actual_base" != "$base" } then {
286	cp_check_errata "$base" "$actual_base" $in_errata_table
287	fail "$in_testname // wrong base: $actual_base"
288	return
289	}
290	set list_bases [lreplace $list_bases 0 0]
291	}
292
293	# Parse each line in the body.
294
295	set last_was_access 0
296	set vbase_match 0
297
298	foreach actual_line [split $actual_body "\r\n"] {
299
300	# Chomp the line.
301
302	set actual_line [string trim $actual_line]
303	if { "$actual_line" == "" } then { continue }
304
305	# Access specifiers.
306
307	if { [regexp "^(public\|protected\|private)${wsopt}:\$" "$actual_line" s0 s1] } then {
308	set access "$s1"
309	if { $last_was_access } then {
310	fail "$in_testname // redundant access specifier"
311	return
312	}
313	set last_was_access 1
314	continue
315	} else {
316	set last_was_access 0
317	}
318
319	# Optional virtual base pointer.
320
321	if { [ llength $list_vbases ] > 0 } then {
322	set vbase [lindex $list_vbases 0]
323	if { [ regexp "$vbase \\(_vb.\|_vb\\\$\|__vb_)\[0-9\]$vbase;" $actual_line ] } then {
324	if { "$access" != "private" } then {
325	cp_check_errata "private" "$access" $in_errata_table
326	fail "$in_testname // wrong access specifier for virtual base: $access"
327	return
328	}
329	set list_vbases [lreplace $list_vbases 0 0]
330	set vbase_match 1
331	continue
332	}
333	}
334
335	# Data field.
336
337	if { [llength $list_fields] > 0 } then {
338	set field_access [lindex [lindex $list_fields 0] 0]
339	set field_decl [lindex [lindex $list_fields 0] 1]
340	if { "$actual_line" == "$field_decl" } then {
341	if { "$access" != "$field_access" } then {
342	cp_check_errata "$field_access" "$access" $in_errata_table
343	fail "$in_testname // wrong access specifier for field: $access"
344	return
345	}
346	set list_fields [lreplace $list_fields 0 0]
347	continue
348	}
349
350	# Data fields must appear before synths and methods.
351	cp_check_errata "$field_decl" "$actual_line" $in_errata_table
352	fail "$in_testname // unrecognized line type 1: $actual_line"
353	return
354	}
355
356	# Method function.
357
358	if { [llength $list_methods] > 0 } then {
359	set method_access [lindex [lindex $list_methods 0] 0]
360	set method_decl [lindex [lindex $list_methods 0] 1]
361	if { "$actual_line" == "$method_decl" } then {
362	if { "$access" != "$method_access" } then {
363	cp_check_errata "$method_access" "$access" $in_errata_table
364	fail "$in_testname // wrong access specifier for method: $access"
365	return
366	}
367	set list_methods [lreplace $list_methods 0 0]
368	continue
369	}
370
371	# gcc 2.95.3 shows "foo()" as "foo(void)".
372	regsub -all "\\(\\)" $method_decl "(void)" method_decl
373	if { "$actual_line" == "$method_decl" } then {
374	if { "$access" != "$method_access" } then {
375	cp_check_errata "$method_access" "$access" $in_errata_table
376	fail "$in_testname // wrong access specifier for method: $access"
377	return
378	}
379	set list_methods [lreplace $list_methods 0 0]
380	continue
381	}
382	}
383
384	# Synthetic operators. These are optional and can be mixed in
385	# with the methods in any order, but duplicates are wrong.
386	#
387	# This test must come after the user methods, so that a user
388	# method which matches a synth-method pattern is treated
389	# properly as a user method.
390
391	set synth_match 0
392	for { set isynth 0 } { $isynth < [llength $list_synth] } { incr isynth } {
393	set synth [lindex $list_synth $isynth]
394	set synth_count [lindex $synth 0]
395	set synth_access [lindex $synth 1]
396	set synth_re [lindex $synth 2]
397
398	if { [ regexp "$synth_re" "$actual_line" ] } then {
399
400	if { "$access" != "$synth_access" } then {
401	cp_check_errata "$synth_access" "$access" $in_errata_table
402	fail "$in_testname // wrong access specifier for synthetic operator: $access"
403	return
404	}
405
406	if { $synth_count > 0 } then {
407	cp_check_errata "$actual_line" "$actual_line" $in_errata_table
408	fail "$in_testname // duplicate synthetic operator: $actual_line"
409	}
410
411	# Update the count in list_synth.
412
413	incr synth_count
414	set synth [list $synth_count $synth_access "$synth_re"]
415	set list_synth [lreplace $list_synth $isynth $isynth $synth]
416
417	# Match found.
418
419	set synth_match 1
420	break
421	}
422	}
423	if { $synth_match } then { continue }
424
425	# Unrecognized line.
426
427	if { [llength $list_methods] > 0 } then {
428	set method_decl [lindex [lindex $list_methods 0] 1]
429	cp_check_errata "$method_decl" "$actual_line" $in_errata_table
430	}
431
432	fail "$in_testname // unrecognized line type 2: $actual_line"
433	return
434	}
435
436	# Check for missing elements.
437
438	if { $vbase_match } then {
439	if { [llength $list_vbases] > 0 } then {
440	fail "$in_testname // missing virtual base pointers"
441	return
442	}
443	}
444
445	if { [llength $list_fields] > 0 } then {
446	fail "$in_testname // missing fields"
447	return
448	}
449
450	if { [llength $list_methods] > 0 } then {
451	fail "$in_testname // missing methods"
452	return
453	}
454
455	# Check the tail.
456
457	set actual_tail [string trim $actual_tail]
458	if { "$actual_tail" != "$in_tail" } then {
459	cp_check_errata "$in_tail" "$actual_tail" $in_errata_table
460	fail "$in_testname // wrong tail: $actual_tail"
461	return
462	}
463
464	# It all worked!
465
466	pass "$in_testname"
467	return
468	}