# Copyright (C) 2010-2021 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/>.

# This file is part of the GDB testsuite.
# It tests the mechanism exposing blocks to Guile.

load_lib gdb-guile.exp

standard_testfile

if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile}] } {
    return -1
}

# Skip all tests if Guile scripting is not enabled.
if { [skip_guile_tests] } { continue }

if ![gdb_guile_runto_main] {
    return
}

gdb_breakpoint [gdb_get_line_number "Block break here."]
gdb_continue_to_breakpoint "Block break here."

# Test initial innermost block.
gdb_scm_test_silent_cmd "guile (define frame (selected-frame))" \
    "Get frame inner"
gdb_scm_test_silent_cmd "guile (define block (frame-block frame))" \
    "Get block inner"
gdb_test "guile (print block)" "#<gdb:block $hex-$hex>" \
    "Check block not #f"
gdb_test "guile (print (block-function block))" \
    "#f" "First anonymous block"
gdb_test "guile (print (block-start block))" \
    "${decimal}" "Check start not #f"
gdb_test "guile (print (block-end block))" \
    "${decimal}" "Check end not #f"

# Test eq?.
gdb_test "guile (print (eq? (frame-block frame) (frame-block frame)))" \
     "= #t" "Check eq? on same block"
gdb_test "guile (print (eq? block (block-global-block block)))" \
     "= #f" "Check eq? on different blocks"

# Test global/static blocks.
gdb_scm_test_silent_cmd "guile (define frame (selected-frame))" \
    "Get frame for global/static"
gdb_scm_test_silent_cmd "guile (define block (frame-block frame))" \
    "Get block for global/static"
gdb_test "guile (print (block-global? block))" \
    "#f" "Not a global block"
gdb_test "guile (print (block-static? block))" \
    "#f" "Not a static block"
gdb_scm_test_silent_cmd "guile (define gblock (block-global-block block))" \
    "Get global block"
gdb_scm_test_silent_cmd "guile (define sblock (block-static-block block))" \
    "Get static block"
gdb_test "guile (print (block-global? gblock))" \
    "#t" "Is the global block"
gdb_test "guile (print (block-static? sblock))" \
    "#t" "Is the static block"

# Move up superblock(s) until we reach function block_func.
gdb_test_no_output "guile (set! block (block-superblock block))" \
    "Get superblock"
gdb_test "guile (print (block-function block))" \
    "#f" "Second anonymous block"
gdb_test_no_output "guile (set! block (block-superblock block))" \
    "Get superblock 2"
gdb_test "guile (print (block-function block))" \
    "block_func" "Print superblock 2 function"

# Switch frames, then test for main block.
gdb_test "up" ".*"
gdb_scm_test_silent_cmd "guile (define frame (selected-frame))" \
    "Get frame 2"
gdb_scm_test_silent_cmd "guile (define block (frame-block frame))" \
    "Get frame 2's block"
gdb_test "guile (print block)" "#<gdb:block main $hex-$hex>" \
    "Check Frame 2's block not #f"
gdb_test "guile (print (block-function block))" \
    "main" "main block"

# Test block-valid?.  This must always be the last test in this
# testcase as it unloads the object file.
delete_breakpoints
gdb_scm_test_silent_cmd "guile (define frame (selected-frame))" \
    "Get frame for valid?"
gdb_scm_test_silent_cmd "guile (define block (frame-block frame))" \
    "Get frame block for valid?"
gdb_test "guile (print (block-valid? block))" \
    "#t" "Check block validity"
gdb_unload
gdb_test "guile (print (block-valid? block))" \
    "#f" "Check block validity after unload"