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# Copyright (C) 2010 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 values to Python.

if $tracelevel then {
    strace $tracelevel
}

set testfile "py-block"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}
if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
    untested "Couldn't compile ${srcfile}"
    return -1
}

# Run a command in GDB, and report a failure if a Python exception is thrown.
# If report_pass is true, report a pass if no exception is thrown.
proc gdb_py_test_silent_cmd {cmd name report_pass} {
    global gdb_prompt

  gdb_test_multiple $cmd $name {
      -re "Traceback.*$gdb_prompt $" { fail $name }
      -re "$gdb_prompt $" { if $report_pass { pass $name } }
  }
}

# Start with a fresh gdb.
gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}

# Skip all tests if Python scripting is not enabled.
if { [skip_python_tests] } { continue }

if ![runto_main] then {
    fail "Can't run to main"
    return 0
}

global hex decimal
gdb_breakpoint [gdb_get_line_number "Block break here."]
gdb_continue_to_breakpoint "Block break here."

# Test initial innermost block.
gdb_py_test_silent_cmd "python frame = gdb.selected_frame()" "Get Frame" 0
gdb_py_test_silent_cmd "python block = frame.block()" "Get block" 0
gdb_test "python print block" "<gdb.Block object at $hex>" "Check block not None"
gdb_test "python print block.function" "None" "First anonymous block"
gdb_test "python print block.start" "${decimal}" "Check start not None"
gdb_test "python print block.end" "${decimal}" "Check end not None"

# Move up superblock(s) until we reach function block_func.
gdb_test_no_output "python block = block.superblock" "Get superblock"
gdb_test "python print block.function" "None" "Second anonymous block"
gdb_test_no_output "python block = block.superblock" "Get superblock 2"
gdb_test "python print block.function" "block_func"

# Switch frames, then test for main block.
gdb_test "up" ".*"
gdb_py_test_silent_cmd "python frame = gdb.selected_frame()" "Get Frame" 0
gdb_py_test_silent_cmd "python block = frame.block()" "Get block" 0
gdb_test "python print block" "<gdb.Block object at $hex>" "Check block not None"
gdb_test "python print block.function" "main" "main block"
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