11.2.6 Debugging

add_breakpoint(+Conditions, -BID) development

Creates a breakpoint with Conditions and with identifier BID.

user:breakpoint_expansion(+Macro, -Body) hook,development

defines debugger condition macros

coverage_data(?Data) development

Data is the coverage data accumulated so far

current_breakpoint(?Conditions, ?BID, ?Status, ?Kind, ?Type) development

There is a breakpoint with conditions Conditions, identifier BID, enabledness Status, kind Kind, and type Type.

debug development

switch on debugging

user:debugger_command_hook(+DCommand,-Actions) hook,development

Allows the interactive debugger to be extended with user-defined commands.

debugging development

display debugging status information

disable_breakpoints(+BIDs) development

Disables the breakpoints specified by BIDs.

enable_breakpoints(+BIDs) development

Enables the breakpoints specified by BIDs.

user:error_exception(+Exception) hook

Exception is an exception that traps to the debugger if it is switched on.

execution_state(+Tests) development

Tests are satisfied in the current state of the execution.

execution_state(+FocusConditions, +Tests) development

Tests are satisfied in the state of the execution pointed to by FocusConditions.

leash(+M) development

set the debugger's leashing mode to M

nodebug development

switch off debugging

nospy(:P) development

remove spypoints from the procedure(s) specified by P

nospyall development

remove all spypoints

notrace development

switch off debugging (same as nodebug/0)

nozip development

switch off debugging (same as nodebug/0)

print_coverage development

print_coverage(?Data) development

The coverage data Data is displayed in a hierarchical format. Data defaults to the coverage data accumulated so far.

print_profile development

print_profile(?Data) development

The profiling data Data is displayed in a format similar to gprof(1). Data defaults to the profiling data accumulated so far.

profile_data(?Data) development

Data is the profiling data accumulated so far

profile_reset development

All profiling data is reset.

remove_breakpoints(+BIDs) development

Removes the breakpoints specified by BIDs.

spy(:P) development

spy(:P,:C)

set spypoints on the procedure(s) specified by P with conditions C

trace development

switch on debugging and start tracing immediately

unknown(-O,+N) development

Changes action on undefined predicates from O to N.

user:unknown_predicate_handler(+G,+M,-N) hook

handle for unknown predicates.

zip development

switch on debugging in zip mode