* module/system/repl/command.scm (terminal-width): New parameter that
will use the true terminal width if unset.
(backtrace, locals): Default to (terminal-width).
(width): Simplify.
This meta-command allows one to set the default number of columns
that output from ,backtrace and ,locals shall occupy.
* doc/ref/scheme-using.texi (Debug Commands): document ,width
* module/system/repl/command.scm (*width*): new var
(backtrace, locals): use *width* in optarg
(width): new meta-command
* module/system/repl/command.scm (warranty, copying, version): Use
`define-meta-command' to define these procedures, so they are entered
into the *command-infos* table.
Besides allowing user-defined meta-commands, this change also refactors
the meta-command machinery to split reading a command's arguments from
the procedure actually implementing it, and hence allows nesting
meta-commands. As an example of such a command, ",in" is added as a new
meta-command.
* module/system/repl/command.scm: Export `define-meta-command'.
(*command-module*): Replaced by the hash table `*command-infos*'.
(command-info, make-command-info, command-info-procedure)
(command-info-arguments-reader): New procedures, encapsulating the
information about a meta-command.
(command-procedure): Adapted to use the `command-info' lookup
procedure.
(read-command-arguments): New auxiliary procedure invoking a command's
argument reader procedure.
(meta-command): Adapted to the split of reading arguments and
executing a command.
(add-meta-command!): New auxiliary procedure, registers a meta
command's procedure and argument reader into `*command-infos* and
`*command-table*.
(define-meta-command): Extended to allow specification of the command's
category; split the argument reader and actual command procedure.
(guile:apropos, guile:load, guile:compile-file, guile:gc): Remove these
aliases, they are unnecessary as we now use a hash table instead of the
module to store the commands.
(in): New meta-command, which evaluates an expression, or alternatively
executes another meta-command, in the context of a specific module.
* doc/ref/scheme-using.texi (Module Commands): Document the `in'
meta-command.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
Fixes bug in repl meta-commands after activating readline, which changes
the current input port.
* module/system/repl/common.scm (<repl>): Remove inport and outport
fields.
(make-repl): Adapt.
(repl-read, repl-print): Just read and write to the current ports.
* module/system/repl/repl.scm (meta-reader): Meta-read from the current
input port.
* module/system/repl/command.scm (read-command, define-meta-command):
Read from the current input port.
* module/system/repl/debug.scm (print-frame): Add #:next-source? arg,
for when print-frame should use frame-next-source instead of
frame-source.
(print-frames): Add #:for-trap? arg. If true, the 0th frame should be
printed with frame-next-source.
* module/system/repl/command.scm (define-stack-command): Introduce
for-trap? into the lexical env.
(backtrace, up, down, frame): Update to do the right thing regarding
#:for-trap?.
* module/language/tree-il/analyze.scm (format-analysis): Don't warn on
non-literal format string if the format string is a lexical ref to a
variable named "fmt". A slight hack, but effective :)
* module/system/repl/command.scm (display-stat): Rename the format
string to "fmt".
* module/system/repl/debug.scm (<debug>): New field, `for-trap?'. True
if the stack is for a trap, and thus the top frame should use
frame-next-source instead of frame-source.
* module/system/repl/command.scm (repl-pop-continuation-resumer)
(repl-next-resumer):
* module/system/repl/error-handling.scm (call-with-error-handling):
Update callers.
* module/system/vm/trace.scm (print-application, print-return): Change
to add more whitespace, as (ice-9 debug) did.
(call-with-trace): Rename from vm-trace, and make the vm a keyword
argument.
* module/system/repl/command.scm: Don't autoload (system vm profile).
(trace): Update for call-with-trace name change.
* module/system/vm/traps.scm (trap-matching-instructions): New trap,
just installs a next hook and runs the handler when a predicate
succeeds.
* module/system/vm/trap-state.scm (add-ephemeral-stepping-trap!): New
procedure, uses trap-matching-instructions with an appropriate
predicate to handle step, stepi, next, and nexti repl metacommands.
* module/system/repl/command.scm (step, step-instruction, next)
(next-instruction): New repl debugger commands.
* libguile/frames.h:
* libguile/frames.c (scm_frame_stack_pointer): New function.
* module/system/repl/debug.scm (print-registers): New function, prints
out registers.
* module/system/repl/command.scm (registers): New debugging
meta-command.
(inspect): Not a stack-command, a normal meta-command.
* module/system/vm/trap-state.scm (add-trap-at-source-location!): New
proc.
* module/system/repl/command.scm (break-at-source): New repl
meta-command. Doesn't work as well as it could now because it doesn't
know about nested functions, but that's coming.
* module/system/vm/trap-state.scm (list-traps): Just return the integers
identifying the traps; people can use trap-name to get the names.
* module/system/repl/command.scm (traps): Adapt.
* module/system/vm/trace.scm (print-return, print-application)
(frame-return-values): Factored out of other things.
(trace-calls-to-procedure): New proc, installs a trap tracing only
calls to the given proc.
(trace-calls-in-procedure): Refactor a bit.
* module/system/vm/trap-state.scm (add-trace-at-procedure-call!): New
proc.
* module/system/repl/command.scm (tracepoint): New command, installs a
tracepoint on a procedure.
* module/system/repl/command.scm (profile, trace, inspect)
(pretty-print): Use repl-prepare-eval-thunk instead of the lower-level
compile and make-program.
* module/system/vm/trap-state.scm: New file, tracks a VM-specific set of
traps.
* module/Makefile.am: Add trap-state.scm.
* module/system/repl/error-handling.scm: While in a with-error-handling
block, bind a default trap handler that invokes a recursive prompt.
* module/system/repl/command.scm: Add a `break' repl meta-command.
* module/system/repl/error-handling.scm: use the error string to
construct the <debug> instance.
* module/system/repl/command.scm: new debug command `error-message'
that extracts the new <debug> field, available to stack commands as
`message'.
* doc/ref/scheme-using.texi: documentation for new command.
* module/system/repl/debug.scm: <debug> stores the error string in a
new field.
* module/system/repl/common.scm: Use (ice-9 history). Turns on value
history by default.
(repl-default-options): Expand the format of options to include an
optional value transformer, run when setting a value. Add prompt and
value-history options.
(repl-prepare-eval-thunk): Use repl-option-ref.
(repl-option-ref): Error if the option is unknown.
(repl-option-set!, repl-default-option-set!): Error if the option is
unknown. Pass the val through the transformer procedure.
(repl-default-prompt-set!): Just use repl-default-option-set!.
* module/system/repl/command.scm (option): Update for the new options
format.
* module/system/repl/command.scm (read-command): Remove a pk.
* module/system/repl/repl.scm (run-repl): Export. Use % and abort to
implement the prompt.
* module/system/repl/debug.scm: New file, defines a data type to hold
state for a debugger stack, and some helper procedures to print the
stack or print a frame. Most pieces are from (system vm debug).
* module/system/repl/error-handling.scm: New file, implements
call-with-error-handling and with-error-handling, and instead of going
into a debugger, we go into a recursive repl that happens to have
debugging information. Will be removing the old debugger from (system
vm debug) shortly.
* module/Makefile.am (SYSTEM_SOURCES): Add error-handling and debug scm
files.
* module/system/repl/repl.scm (prompting-meta-read): Better error
handling -- we don't want to go into a debugger when reading a
command.
(start-repl): Add #:debug keyword argument, and just dispatch to
run-repl.
(run-repl): New function, with the guts of the old start-repl. Added a
prompt, to which a throw to 'quit will abort.
* module/system/repl/common.scm (repl-prepare-eval-thunk): New
helper. In the future we will use this to not enter the debugger on
errors that happen at compile time.
(repl-eval): Use repl-prepare-eval-thunk.
(repl-print): Run the before-print-hook when printing a value.
* module/system/repl/command.scm (*command-table*): Move `option' to the
`system' group. Move `trace' to the `profile' group. Add `debug' and
`inspect' groups.
(command-abbrevs): Rename from command-abbrev, and allow multiple
abbreviations.
(display-group): Fix the case where abbrev? was #f.
(display-summary): Fix alignment of the command and
abbreviations. Allow multiple abbreviations.
(read-command): Rename from read-datum, and have better error
handling.
(meta-command): Better error handling.
(define-meta-command): Better error handling.
(help, show, import, compile, disassemble, time, profile, trace): Fix
docstrings and error messages.
(define-stack-command): New helper, for commands that operate on a
saved stack.
(backtrace, up, down, frame, procedure, locals): New debugger
commands, in the REPL now.
(inspect, pretty-print): New "inspect" commands.
* module/system/repl/common.scm (<repl>): Add inport and outport fields
and accessors.
(make-repl): Add optional "debug" argument. Bind inport and outport to
the current inport and output ports at the time of repl creation.
(repl-read): Read from the repl inport.
(repl-print): Write to the repl outport.
* module/system/repl/command.scm (read-datum, read-line, meta-command):
Respect repl-inport, and bind the outport of meta-commands to the repl
outport.
* module/system/repl/command.scm: Add support for ,show with topics
"warranty", "copying", and "version".
(language): Don't re-print the welcome; print sometime more terse.
* module/system/repl/common.scm (*version*, *warranty*, *copying*): New
public globals.
(repl-welcome): Display *version*.
* module/system/repl/common.scm (<repl>): Remove "vm" field and repl-vm
accessor. I think the correct model is to just use the-vm. This change
was prompted by the need to have the REPL itself not cause a recursive
VM invocation, so that captured prompts at the REPL are rewindable.
(make-repl): Remove treatment of #:vm.
(repl-eval): Load a compiled expression as a simple thunk, avoiding a
recursive VM call.
* module/system/repl/command.scm (profile, trace): Remove repl-vm
treatment.
(backtrace, debugger, step): Remove, as they were not implemented.
* module/statprof.scm: Use VM modules, instead of using @ hacks.
(statprof): New public export, a functional interface to the profiler.
(profile-signal-handler, count-call, statprof-start, statprof-stop):
Fix call counting with the VM.
(statprof-call-data->stats): Hack around a case in which a call could
be sampled but not counted, if you get my drift.
(procedure=?): Update for current API.
(with-statprof): Use `statprof'.
* module/system/repl/command.scm (profile): Use the `statprof'
procedural interface.
* module/system/vm/trace.scm (vm-trace): Change to just export the one
procedure, vm-trace. This way it's threadsafe and more robust. Also
refactor to not print any of Guile's internal bits. Hopefully Neil
will be happier :)
* module/system/repl/command.scm (option): Adapt to removal of
vm-trace-on! and vm-trace-off!, as those are unlikely to DTRT.
* libguile/tags.h (scm_tc7_frame, scm_tc7_objcode, scm_tc7_vm)
(scm_tc7_vm_cont): Take more tc7s for VM-related data structures.
* libguile/evalext.c (scm_self_evaluating_p):
* libguile/gc.c (scm_i_tag_name):
* libguile/goops.c (scm_class_of, create_standard_classes):
* libguile/print.c (iprin1): Add cases for the new tc7s.
* libguile/frames.c:
* libguile/frames.h:
* libguile/objcodes.c:
* libguile/objcodes.h:
* libguile/vm.c:
* libguile/vm.h: Desmobify.
* libguile/vm.c (scm_vm_apply): Export to Scheme, because VM objects are
no longer applicable.
* module/system/repl/command.scm (profile):
* module/system/vm/trace.scm (vm-trace):
* module/system/vm/vm.scm (vm-load): Call vm-apply to run a program in a
VM instead of treating the VM as applicable.
* libguile/vm.h (struct scm_vm): Remove "time" and "clock" members. The
time was bogusly measured, and the "clock" measured instructions
retired, which is not a very useful measurement, and it was causing
lots of memory accesses. Not that I have done a proper profile,
though...
(scm_vm_stats): Remove this procedure, which provided access to "time"
and "clock".
* libguile/vm.c:
* libguile/vm-engine.h:
* libguile/vm-engine.c:
* libguile/vm-i-system.c: Adapt to scm_vm changes and scm_vm_stats
removal.
* module/system/repl/command.scm:
* module/system/vm/vm.scm: Adapt to vm-stats removal by removing
vm-stats from <repl>.
* module/language/assembly/spec.scm:
* module/language/brainfuck/spec.scm:
* module/language/bytecode/spec.scm:
* module/language/ecmascript/spec.scm:
* module/language/glil/spec.scm:
* module/language/scheme/spec.scm:
* module/language/tree-il/spec.scm: Language-readers now take two
arguments: the port and the environment. This should allow for
compile-environment-specific reader behavior.
* module/system/base/compile.scm (read-and-compile):
* module/system/repl/common.scm (repl-read): Pass the environment to the
language-reader.
* module/system/repl/repl.scm (meta-reader, prompting-meta-read):
* module/system/repl/command.scm (define-meta-command): Use the second
argument to repl-reader, so we avoid frobbing current-reader.
* module/system/repl/command.scm: Update copyright.
(meta-command): Rework so that it's the various meta-commands that do
the reading for their arguments. This way you can compile forms that
span more than one line, and forms that need to be read with another
language's reader.
(define-meta-command): New helper macro. Update commands to use it.
(help): Allow ,help on commands too.
* module/system/repl/repl.scm: Update copyright.
(start-repl): Adjust to give meta-command what it wants.
