diff options
Diffstat (limited to 'lldb/examples/python')
| -rw-r--r-- | lldb/examples/python/shadow.py | 54 |
1 files changed, 26 insertions, 28 deletions
diff --git a/lldb/examples/python/shadow.py b/lldb/examples/python/shadow.py index 6da2bcec9a7..d1a5878fcef 100644 --- a/lldb/examples/python/shadow.py +++ b/lldb/examples/python/shadow.py @@ -4,20 +4,14 @@ import lldb import shlex @lldb.command("shadow") -def check_shadow_command(debugger, command, result, dict): - target = debugger.GetSelectedTarget() - if not target: - print >>result, "invalid target" - return - process = target.GetProcess() - if not process: - print >>result, "invalid process" - return - thread = process.GetSelectedThread() - if not thread: - print >>result, "invalid thread" - return - frame = thread.GetSelectedFrame() +def check_shadow_command(debugger, command, exe_ctx, result, dict): + '''Check the currently selected stack frame for shadowed variables''' + process = exe_ctx.GetProcess() + state = process.GetState() + if state != lldb.eStateStopped: + print >>result, "process must be stopped, state is %s" % lldb.SBDebugger.StateAsCString(state) + return + frame = exe_ctx.GetFrame() if not frame: print >>result, "invalid frame" return @@ -26,8 +20,9 @@ def check_shadow_command(debugger, command, result, dict): # TODO: add support for using arguments that are passed to this command... # Make a dictionary of variable name to "SBBlock and SBValue" - var_dict = {} + shadow_dict = {} + num_shadowed_variables = 0 # Get the deepest most block from the current frame block = frame.GetBlock() # Iterate through the block and all of its parents @@ -36,24 +31,27 @@ def check_shadow_command(debugger, command, result, dict): block_vars = block.GetVariables(frame, True, True, True, 0) # Iterate through all variables in the current block for block_var in block_vars: - # Get the variable name and see if we already have a variable by this name? - block_var_name = block_var.GetName() - if block_var_name in var_dict: - # We already have seen a variable with this name, so it is shadowed - shadow_block_and_vars = var_dict[block_var_name] - for shadow_block_and_var in shadow_block_and_vars: - print shadow_block_and_var[0], shadow_block_and_var[1] - print 'is shadowed by:' - print block, block_var # Since we can have multiple shadowed variables, we our variable # name dictionary to have an array or "block + variable" pairs so # We can correctly print out all shadowed variables and whow which # blocks they come from - if block_var_name in var_dict: - var_dict[block_var_name].append([block, block_var]) + block_var_name = block_var.GetName() + if block_var_name in shadow_dict: + shadow_dict[block_var_name].append(block_var) else: - var_dict[block_var_name] = [[block, block_var]] + shadow_dict[block_var_name] = [block_var] # Get the parent block and continue block = block.GetParent() - + + num_shadowed_variables = 0 + if shadow_dict: + for name in shadow_dict.keys(): + shadow_vars = shadow_dict[name] + if len(shadow_vars) > 1: + print '"%s" is shadowed by the following declarations:' % (name) + num_shadowed_variables += 1 + for shadow_var in shadow_vars: + print >>result, str(shadow_var.GetDeclaration()) + if num_shadowed_variables == 0: + print >>result, 'no variables are shadowed' |
