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Author SHA1 Message Date
Andy Wingo
6dd87f4d8c Add suspendable-continuation?
* doc/ref/api-control.texi (Prompt Primitives): Document
  suspendable-continuation?.
* libguile/control.c (scm_suspendable_continuation_p): New procedure.
  (scm_init_ice_9_control): New extension procedure, defines
  suspendable-continuation?.
  (scm_init_control): Register scm_init_ice_9_control.
* libguile/eval.c (eval):
* libguile/throw.c (catch):
* libguile/continuations.c (scm_i_make_continuation): Restore resumable
  prompt cookie after continuation invocation.
* libguile/vm.c (scm_call_n): Arrange to set resumable_prompt_cookie
  during invocation of VM.
* libguile/vm.h (struct scm_vm): Add resumable_prompt_cookie member.
* module/ice-9/control.scm: Export suspendable-continuation?.
* test-suite/tests/control.test ("suspendable-continuation?"): New
  test.
2016-12-12 21:13:00 +01:00
Andy Wingo
dc2a560264 Deprecate dynamic roots
* libguile/root.h:
* libguile/root.c: Remove these files.
* libguile/deprecated.h:
* libguile/deprecated.c (scm_internal_cwdr, scm_call_with_dynamic_root)
  (scm_dynamic_root, scm_apply_with_dynamic_root): Deprecate.

Remove all root.h usage, which was vestigial.

* module/ice-9/serialize.scm: Use (current-thread) instead
  of (dynamic-root).
2016-11-21 23:09:21 +01:00
Andy Wingo
105e36543f Remove scm_puts_unlocked.
* libguile/ports.h (scm_puts_unlocked): Remove.
* libguile/ports.c (scm_puts): Replace implementation with
  scm_puts_unlocked's implementation.
* libguile/arbiters.c:
* libguile/backtrace.c:
* libguile/bitvectors.c:
* libguile/continuations.c:
* libguile/deprecation.c:
* libguile/dynl.c:
* libguile/eval.c:
* libguile/filesys.c:
* libguile/fluids.c:
* libguile/foreign.c:
* libguile/fports.c:
* libguile/frames.c:
* libguile/guardians.c:
* libguile/hashtab.c:
* libguile/hooks.c:
* libguile/load.c:
* libguile/macros.c:
* libguile/mallocs.c:
* libguile/print.c:
* libguile/programs.c:
* libguile/promises.c:
* libguile/smob.c:
* libguile/srcprop.c:
* libguile/srfi-14.c:
* libguile/stackchk.c:
* libguile/struct.c:
* libguile/threads.c:
* libguile/throw.c:
* libguile/values.c:
* libguile/variable.c:
* libguile/vm.c:
* libguile/weak-set.c:
* libguile/weak-table.c: Use scm_puts instead of scm_puts_unlocked.
2016-04-26 23:07:28 +02:00
Andy Wingo
206b3f6e03 Remove scm_putc_unlocked.
* libguile/ports.h (scm_putc_unlocked): Remove.
* libguile/ports.c (scm_putc): Replace implementation with
  scm_putc_unlocked's implementation.
  (scm_port_print): Use scm_putc.
* libguile/arbiters.c:
* libguile/arrays.c:
* libguile/bitvectors.c:
* libguile/bytevectors.c:
* libguile/continuations.c:
* libguile/dynl.c:
* libguile/eval.c:
* libguile/filesys.c:
* libguile/fluids.c:
* libguile/foreign.c:
* libguile/fports.c:
* libguile/frames.c:
* libguile/hashtab.c:
* libguile/hooks.c:
* libguile/macros.c:
* libguile/mallocs.c:
* libguile/print.c:
* libguile/programs.c:
* libguile/promises.c:
* libguile/r6rs-ports.c:
* libguile/smob.c:
* libguile/srcprop.c:
* libguile/struct.c:
* libguile/variable.c:
* libguile/weak-set.c:
* libguile/weak-table.c: Use scm_putc instead of scm_putc_unlocked.
2016-04-26 23:01:14 +02:00
Andy Wingo
9b1ac02a85 Fix boot closure wrong-num-args error
* libguile/eval.c (prepare_boot_closure_env_for_eval): Fix issue if
  fixed closure is called with wrong number of arguments during
  bootstrap.
2015-10-21 11:49:20 +02:00
Andy Wingo
0007507340 VM stack grows downward
Adapt VM stack to grow downward.  This will make native compilation look
more like the VM code, as we will be able to use native CALL
instructions, taking proper advantage of the return address buffer.

* libguile/continuations.c (scm_i_continuation_to_frame): Record offsets
  from stack top.

* libguile/control.c (scm_i_prompt_pop_abort_args_x): Adapt for reversed
  order of arguments, and instead of relying on the abort to push on the
  number of arguments, make the caller save the stack depth, which
  allows us to compute the number of arguments ourselves.
  (reify_partial_continuation, scm_c_abort): Adapt to reversed stack
  order.

* libguile/dynstack.c (scm_dynstack_wind_prompt): Since we wind the
  stack in a downward direction, subtract the reloc instead of adding
  it.

* libguile/dynstack.h (SCM_F_DYNSTACK_PROMPT_ESCAPE_ONLY): Remove flag;
  instead rely on prompt-establishing code to save the stack depth.

* libguile/eval.c (eval): Remove extraneous "volatile" declarations for
  variables that are not re-set between the setjmp and any longjmp.
  Adapt to save stack depth before instating the prompt.

* libguile/foreign.c (scm_i_foreign_call): Adapt to receive arguments in
  reverse order.

* libguile/frames.c (frame_stack_top, scm_i_frame_stack_top): Adapt to
  compute stack top instead of stack bottom.
  (scm_c_frame_closure): Adapt to stack growth change.
  (scm_frame_num_locals, scm_frame_local_ref, scm_frame_set_x): Use
  union data type to access stack.
  (RELOC): Reformat.
  (scm_c_frame_previous): Adapt to stack growth change.

* libguile/frames.h: Adapt stack diagram to indicate that the stack
  grows up.
  (union scm_vm_stack_element): New data type used to access items on
  the stack.
  (SCM_FRAME_PREVIOUS_SP)
  (SCM_FRAME_RETURN_ADDRESS, SCM_FRAME_SET_RETURN_ADDRESS)
  (SCM_FRAME_DYNAMIC_LINK, SCM_FRAME_SET_DYNAMIC_LINK)
  (SCM_FRAME_LOCAL, SCM_FRAME_NUM_LOCALS): Adapt to stack representation
  change.
  (SCM_FRAME_SLOT): New helper.
  (SCM_VM_FRAME_FP, SCM_VM_FRAME_SP): Adapt to stack growth change.

* libguile/stacks.c (scm_make_stack): Record offsets from top of stack.

* libguile/throw.c (catch): Adapt to scm_i_prompt_pop_abort_args_x
  change.

* libguile/vm-engine.c (ALLOC_FRAME, RESET_FRAME):
  (FRAME_LOCALS_COUNT_FROM): Adapt to stack growth change.
  (LOCAL_ADDRESS): Use SCM_FRAME_SLOT to get the address as the proper
  data type.
  (RETURN_ONE_VALUE, RETURN_VALUE_LIST): Adapt to stack growth change.
  (apply): Shuffling up the SMOB apply args can cause the stack to
  expand, so use ALLOC_FRAME instead of RESET_FRAME.
  (vm_engine): Adapt for stack growth change.

* libguile/vm.c (vm_increase_sp, vm_push_sp, vm_restore_sp): Adapt to
  stack representation change.
  (scm_i_vm_cont_to_frame): Adapt to take offsets from the top.
  (scm_i_vm_capture_stack): Adapt to capture from the top.
  (vm_return_to_continuation_inner): Adapt for data type changes.
  (vm_return_to_continuation): Likewise, and instead of looping, just
  splat the saved arguments on with memcpy.
  (vm_dispatch_hook): Adapt to receive arguments in the reverse order.
  Adapt callers.
  (vm_abort): There is never a tail argument.  Adapt to stack
  representation change.
  (vm_reinstate_partial_continuation)
  (vm_reinstate_partial_continuation_inner): Adapt to stack growth
  change.
  (allocate_stack, free_stack): Adapt to data type change.
  (expand_stack): Don't try to mremap(), as you can't grow a mapping
  from the bottom.  Without knowing that there's a free mapping space
  right below the old stack, which there usually isn't on Linux, we have
  to copy.  We can't use MAP_GROWSDOWN because Linux is buggy.
  (make_vm): Adapt to stack representation changes.
  (return_unused_stack_to_os): Round down instead of up, as the stack
  grows down.
  (scm_i_vm_mark_stack): Adapt to walk up the stack.
  (scm_i_vm_free_stack): Adapt to scm_vm changes.
  (vm_expand_stack_inner, reset_stack_limit, vm_expand_stack): Adapt to
  the stack growing down.
  (scm_call_n): Adapt to the stack growing down.  Don't allow argv to
  point into the stack.

* libguile/vm.h (struct scm_vm, struct scm_vm_cont): Adapt to hold the
  stack top and bottom.
2015-10-21 11:49:20 +02:00
Andy Wingo
eb0376567d Remove unused "nargs" field of memoized call expressions
* libguile/eval.c (eval):
* libguile/memoize.c (MAKMEMO_CALL, memoize, unmemoize):
* module/ice-9/eval.scm (primitive-eval): Remove "nargs" field from
  memoized call expressions, and adapt callers.
2015-03-12 08:37:04 +01:00
Andy Wingo
5bfc0653d6 Minor evaluator tweaks
* libguile/eval.c (eval): Remove unused variable.
* libguile/memoize.c (unmemoize): Fix unmemoization.
* module/ice-9/eval.scm: Attempt to speed up common box-ref cases.
2014-12-07 19:03:19 +01:00
Andy Wingo
e6a42e6765 Simplify variable resolution in the evaluator
* libguile/expand.c (convert_assignment): Handle creation of the default
  lambda-case body here.

* libguile/eval.c (eval):
* module/ice-9/eval.scm (primitive-eval):

* libguile/memoize.h:
* libguile/memoize.c (MAKMEMO_BOX_REF, MAKMEMO_BOX_SET):
  (MAKMEMO_TOP_BOX, MAKMEMO_MOD_BOX): Refactor all global var resolution
  to go through "resolve".  Add "box-ref" and "box-set!".  Rename
  memoize-variable-access! to %resolve-variable, and don't be
  destructive.
2014-12-07 15:52:34 +01:00
Andy Wingo
99fb07e19b Add capture-env to evaluator
* libguile/eval.c (eval):
* libguile/memoize.c (memoized_tags, unmemoize):
* libguile/memoize.h (SCM_M_CAPTURE_ENV):
* module/ice-9/eval.scm (primitive-eval): Add capture-env memoized
  expression type.
2014-12-06 19:43:24 +01:00
Andy Wingo
cfdc8416a2 Simplify the interpreter for trivial inits and no letrec
* libguile/memoize.c (FULL_ARITY): Serialize "ninits" and the unbound
  value instead of the init list.
  (memoize): Adapt to FULL_ARITY changes.  Remove LETREC case.
  (unmemoize): Adapt to memoized code change.

* libguile/eval.c (BOOT_CLOSURE_PARSE_FULL): Adapt to parse ninits and
  unbound instead of inits.
  (eval): Lexical-ref can no longer raise an error.
  (prepare_boot_closure_env_for_apply): Adapt to inits change.

* module/ice-9/eval.scm (primitive-eval): Adapt to ninits/unbound
  change.

* libguile/expand.c (expand_named_let): Fix lambda-case creation to make
  lists for opt and inits.
2014-12-05 16:54:35 +01:00
Andy Wingo
c2247b782a Out-of-memory situations raise exceptions instead of aborting
* libguile/gc.c (scm_oom_fn, scm_init_gc): Install an out-of-memory
  handler that raises an unwind-only out-of-memory exception.
  (scm_gc_warn_proc, scm_init_gc): Install a warning proc that tries to
  print to the current warning port, if the current warning port is a
  file port.
  (scm_gc_after_nonlocal_exit): New interface.  Should be called after a
  nonlocal return to potentially collect memory; otherwise allocations
  could try to expand again when they should collect.

* libguile/continuations.c (scm_i_make_continuation):
* libguile/eval.c (eval):
* libguile/throw.c (catch):
* libguile/vm.c (scm_call_n): Call scm_gc_after_nonlocal_exit after
  nonlocal returns.

* libguile/throw.c (abort_to_prompt, throw_without_pre_unwind): Rework
  to avoid allocating memory.
  (scm_report_out_of_memory): New interface.
  (scm_init_throw): Pre-allocate the arguments for stack-overflow and
  out-of-memory errors.

* module/ice-9/boot-9.scm: Add an out-of-memory exception printer.
* module/system/repl/error-handling.scm (call-with-error-handling): Add
  out-of-memory to the report-keys set.

* libguile/gc-malloc.c (scm_realloc): Call scm_report_out_of_memory if
  realloc fails.

* libguile/error.h:
* libguile/error.c:
* libguile/deprecated.h:
* libguile/deprecated.c (scm_memory_error): Deprecate.

* test-suite/standalone/Makefile.am:
* test-suite/standalone/test-out-of-memory: New test case.
2014-03-22 15:49:31 +01:00
Andy Wingo
dc7a33fa87 Merge commit '60617d819d'
Conflicts:
	libguile/continuations.c
	libguile/eval.c
	libguile/goops.c
	libguile/instructions.c
2014-02-07 15:03:17 +01:00
Mark H Weaver
60617d819d Fix thread-unsafe lazy initializations.
* libguile/backtrace.c (print_exception_var): New static variable.
  (init_print_exception_var): New static function.
  (scm_print_exception): Remove thread-unsafe lazy initialization.
  Call 'init_print_exception_var' using 'scm_i_pthread_once'.
  Use 'print_exception_var'.

* libguile/continuations.c (call_cc): New static variable.
  (init_call_cc): New static function.
  (scm_i_call_with_current_continuation): Remove thread-unsafe lazy
  initialization.  Call 'init_call_cc' using 'scm_i_pthread_once'.

* libguile/debug.c (local_eval_var): New static variable.
  (init_local_eval_var): New static function.
  (scm_local_eval): Remove lazy initialization using mutexes.
  Call 'init_local_eval_var' using 'scm_i_pthread_once'.
  Use 'scm_variable_ref' instead of 'SCM_VARIABLE_REF'.

* libguile/eval.c (map_var, for_each_var): New static variables.
  (init_map_var, init_for_each_var): New static functions.
  (scm_map, scm_for_each): Remove thread-unsafe lazy initializations.
  Call 'init_map_var' (or 'init_for_each_var') using 'scm_i_pthread_once'.
  Use 'map_var' (or 'for_each_var').

* libguile/frames.c (frame_arguments_var): New static variable.
  (init_frame_arguments_var): New static function.
  (scm_frame_arguments): Remove thread-unsafe lazy initialization.
  Call 'init_frame_arguments_var' using 'scm_i_pthread_once'.
  Use 'frame_arguments_var'.  Use 'scm_variable_ref' instead of
  'SCM_VARIABLE_REF'.

* libguile/goops.c (delayed_compile_var): New static variable.
  (init_delayed_compile_var): New static function.
  (make_dispatch_procedure): Remove thread-unsafe lazy initialization.
  Call 'init_delayed_compile_var' using 'scm_i_pthread_once'.
  Use 'delayed_compile_var'.  Use 'scm_variable_ref' instead of
  'SCM_VARIABLE_REF'.

* libguile/instructions.c (instructions_by_name): New static variable.
  (init_instructions_by_name): New static function.
  (scm_lookup_instruction_by_name): Remove thread-unsafe lazy
  initialization.  Call 'init_instructions_by_name' using
  'scm_i_pthread_once'.

* libguile/ports.c (current_warning_port_var)
  (current_warning_port_once): New static variables.
  (init_current_warning_port_var): New static function.
  (scm_current_warning_port): Remove lazy initialization using mutexes.
  Call 'init_current_warning_port_var' using 'scm_i_pthread_once'.
  Use 'current_warning_port_var'.
  (scm_set_current_warning_port): Remove thread-unsafe lazy initialization.
  Call 'init_current_warning_port_var' using 'scm_i_pthread_once'.
  Use 'current_warning_port_var'.

* libguile/strings.c (null_stringbuf): New static variable.
  (init_null_stringbuf): New static function.
  (scm_i_make_string): Remove thread-unsafe lazy initialization.
  Call 'init_null_stringbuf' using 'scm_i_pthread_once'.

* libguile/strports.c (eval_string_var, k_module): New static variables.
  (init_eval_string_var_and_k_module): New static function.
  (scm_eval_string_in_module): Remove lazy initialization using mutexes.
  Call 'init_eval_string_var_and_k_module' using 'scm_i_pthread_once'.
  Use 'eval_string_var'.

* libguile/throw.c (CACHE_VAR): Remove incorrect macro.
  (catch_var, throw_var, with_throw_handler_var): New static variables.
  (scm_catch, scm_catch_with_pre_unwind_handler): Remove thread-unsafe
  lazy initialization.  Use 'catch_var'.
  (init_with_throw_handler_var): New static function.
  (scm_with_throw_handler): Remove thread-unsafe lazy initialization.
  Call 'init_with_throw_handler_var' using 'scm_i_pthread_once'.
  Use 'with_throw_handler_var'.
  (scm_throw): Remove thread-unsafe lazy initialization.
  Use 'throw_var'.
  (scm_init_throw): Initialize 'catch_var' and 'throw_var'.
2014-01-23 23:44:11 -05:00
Andy Wingo
e7f9ababe0 scm_the_vm now returns raw struct scm_vm pointer
* libguile/vm.h (scm_the_vm): Return struct scm_vm*.
  (scm_c_vm_run): Remove.

* libguile/control.c:
* libguile/eval.c:
* libguile/throw.c:
* libguile/vm.c: Adapt.
2013-11-21 18:28:06 +01:00
Andy Wingo
55ee360700 Prefer scm_call_n to scm_c_vm_run (scm_the_vm())
* libguile/vm.c (scm_i_capture_current_stack): Cosmetic tweak.
  (scm_call_n): Define here instead of in eval.c.  All callers of
  scm_c_vm_run were passing scm_the_vm() as the VM.  Eventually
  scm_call_n will replace scm_c_vm_run.

* libguile/eval.c: Adapt all callers.
2013-11-21 18:23:08 +01:00
Andy Wingo
4fcbc1b0d8 scm_i_prompt_pop_abort_args_x takes struct scm_vm* as arg
* libguile/control.h:
* libguile/control.c (scm_i_prompt_pop_abort_args_x): Change to take VP
  as an arg, not VM.

* libguile/eval.c (eval):
* libguile/throw.c (pre_init_catch): Adapt.
2013-11-21 18:09:29 +01:00
Andy Wingo
0bca90aac9 The dynamic stack records SP and FP values as offsets
* libguile/dynstack.h:
* libguile/dynstack.c (PROMPT_FP, PROMPT_SP):
  (scm_dynstack_push_prompt, scm_dynstack_find_prompt): Prompts on the
  dynstack are recorded as offsets from the base stack address in this
  thread.

* libguile/control.c (scm_c_abort):
* libguile/eval.c (eval):
* libguile/stacks.c (find_prompt, narrow_stack):
* libguile/throw.c (pre_init_catch):
* libguile/vm-engine.c (prompt): Adapt.
2013-11-21 16:51:15 +01:00
Andy Wingo
6b4ba76d05 Change eval.c to use scm_c_vm_run instead of scm_call_with_vm.
* libguile/eval.c (scm_apply_0, scm_apply_1, scm_apply_2, scm_apply_3)
  (scm_map, scm_for_each, scm_apply): Change to prefer scm_apply_0, and
  to have it call vm_run instead of call_with_vm.
  (eval): Use scm_apply_0 and scm_call_0.

* libguile/srfi-1.c (scm_srfi1_count): Use scm_apply_0.
2013-11-21 15:43:21 +01:00
Andy Wingo
ef47c4229c Be smarter about capturing the environment for memoized code
* libguile/memoize.h (SCM_M_CAPTURE_MODULE)
* libguile/memoize.c (MAKMEMO_CAPTURE_MODULE, capture_env):
  (maybe_makmemo_capture_module, memoize): Determine when to capture the
  module on the environment chain at compile-time, instead of at
  runtime.  Introduces a new memoized expression type, capture-module.
  (scm_memoized_expression): Start memoizing with #f as the
  environment.
  (unmemoize): Add unmemoizer.
  (scm_memoize_variable_access_x): Cope with #f as module, and treat as
  the root module (captured before modules were booted).

* libguile/eval.c (eval):
* module/ice-9/eval.scm (primitive-eval): Adapt.
2013-10-31 22:16:10 +01:00
Andy Wingo
0720f70ed7 Memoized expressions are pairs, not SMOBs
* libguile/memoize.c (MAKMEMO): Memoized objects are pairs now, not
  SMOBs.  This lets eval.scm destructure them more efficiently.
  (scm_print_memoized, scm_memoized_p, scm_memoized_expression_typecode)
  (scm_memoized_expression_data): Remove these interfaces.
  (unmemoize, scm_memoize_variable_access_x): Remove SMOB type checks.
  (scm_init_memoize): Remove SMOB type definition.

* libguile/memoize.h (scm_tc16_memoized, SCM_MEMOIZED_P)
  (scm_memoized_expression_typecode, scm_memoized_expression_data)
  (scm_memoized_p): Remove declarations.

* libguile/validate.h (SCM_VALIDATE_MEMOIZED): Remove declaration.

* libguile/eval.c (eval): Remove memoized type check, and inline the
  inum unpacking.

* module/ice-9/eval.scm (memoized-expression-case): Use car and cdr to
  destructure memoized expressions.  A big win!
2013-10-27 09:52:39 +01:00
Andy Wingo
cfc28c808e Evaluator uses two-dimensional environment
* libguile/memoize.c (MAKMEMO_LEX_REF, MAKMEMO_LEX_SET): Change to
  address lexicals by depth and width.
  (try_lookup_rib, lookup_rib, make_pos): New helpers.
  (lookup): Adapt to return a pair.
  (memoize, unmemoize_bindings, unmemoize_lexical): Adapt.

* libguile/eval.c (eval, prepare_boot_closure_env_for_eval):
  (prepare_boot_closure_env_for_apply):
* module/ice-9/eval.scm (make-fixed-closure, make-general-closure)
  (eval): Adapt to new environment.

This is currently a slight win for C, and a slight lose for Scheme --
because the lookup loop is so poorly compiled by the stack VM.  I expect
that the RTL-compiled eval will fix this.
2013-10-25 17:15:23 +02:00
Andy Wingo
c6cd692f08 Add SCM_F_DYNSTACK_PROMPT_PUSH_NARGS prompt flag
* libguile/dynstack.h (scm_t_dynstack_prompt_flags): New flag,
  SCM_F_DYNSTACK_PROMPT_PUSH_NARGS, set if the continuation expects the
  number of args to be pushed on the top of the stack.

* libguile/control.c (scm_c_abort): Only push nargs if requested.

* libguile/eval.c (eval):
* libguile/throw.c (pre_init_catch):
* libguile/vm-i-system.c (prompt): Set
  SCM_F_DYNSTACK_PROMPT_PUSH_NARGS.
2013-10-14 16:05:45 +02:00
Mark H Weaver
28d5d2537c Merge remote-tracking branch 'origin/stable-2.0'
Conflicts:
	libguile/keywords.c
	libguile/vm.c
2013-07-16 01:33:27 -04:00
Andy Wingo
c32b7c4cef Remove with-fluids; replaced by with-fluid* and inlined push-fluid primops
* libguile/vm-i-system.c (push-fluid, pop-fluid):
* doc/ref/vm.texi (Dynamic Environment Instructions): Rename wind-fluids
  to push-fluid, and unwind-fluids to pop-fluid.  They now only work on
  one fluid binding at a time.

* module/ice-9/boot-9.scm (with-fluid*): Implement in Scheme in terms of
  primcalls to push-fluid and pop-fluid.
  (custom-throw-handler, catch, with-throw-handler): Use with-fluid*
  instead of with-fluids, as with-fluids is no longer available before
  psyntax is loaded.
  (with-fluids): Define in Scheme in terms of with-fluid*.

* libguile/fluids.c (scm_with_fluid): Rename from scm_with_fluids, and
  don't expose to Scheme.

* libguile/eval.c (eval): Remove SCM_M_WITH_FLUIDS case.
* libguile/expand.c (expand_with_fluids): Remove with-fluids syntax.
  (DYNLET): Remove, no longer defining dynlet in the %expanded-vtables.
* libguile/expand.h: Remove dynlet definitions.
* module/ice-9/eval.scm (primitive-eval): Remove with-fluids case.
* libguile/memoize.c (do_push_fluid, do_pop_fluid): New primitive
  helpers, like wind and unwind.
  (memoize): Memoize wind and unwind primcalls.  Don't memoize dynlet to
  with-fluids.
  (scm_init_memoize): Initialize push_fluid and pop_fluid here.
* libguile/memoize.h (SCM_M_WITH_FLUIDS): Remove definition.

* module/ice-9/psyntax.scm (build-dynlet): Remove; this just supported
  with-fluids, which is now defined in boot-9.
* module/ice-9/psyntax-pp.scm: Regenerate.

* doc/ref/compiler.texi (Tree-IL):
* module/language/tree-il.scm:
* module/language/tree-il/analyze.scm:
* module/language/tree-il/canonicalize.scm:
* module/language/tree-il/compile-glil.scm:
* module/language/tree-il/cse.scm:
* module/language/tree-il/debug.scm:
* module/language/tree-il/effects.scm: Remove <dynlet>.  Add cases for
  primcalls to push-fluid and pop-fluid in compile-glil.scm and
  effects.scm.

* module/language/tree-il/peval.scm (peval): Factor out
  with-temporaries; probably a bad idea, but works for now.  Factor out
  make-begin0 (a better idea).  Inline primcalls to with-fluid*, and
  remove dynlet cases.

* module/language/tree-il/primitives.scm (*interesting-primitive-names*):
  Add with-fluid*.
2013-06-28 19:52:09 +02:00
Andy Wingo
bb97e4abd4 dynamic-wind in terms of wind and unwind; remove <dynwind>, @dynamic-wind
* doc/ref/compiler.texi: Remove mention of <dynwind>.
* libguile/eval.c (eval): Remove SCM_M_DYNWIND case.
* libguile/expand.c: Remove scm_sym_at_dynamic_wind.
* libguile/memoize.c (do_wind, do_unwind): A couple of hacky subrs.  If
  we see a wind or unwind primcall, we expand to a call of a quoted subr
  value.  It works and removes a kind of memoized value from the
  interpreter.  For the compiler,primcalls to wind and unwind are
  handled specially.
  (MAKMEMO_DYNWIND): Remove.
  (scm_tc16_memoizer): Remove.  Yay!
  (memoize): Remove speculative lookup for toplevels to see if they are
  memoizers: there are no more memoizers.  Memoize calls to the wind and
  unwind primitives.
  (m_dynamic_wind): Remove.
  (unmemoize): Remove dynwind case.
  (scm_init_memoize): Add wind and unwind local definitions.

* module/ice-9/boot-9.scm (dynamic-wind): Reimplement in terms of "wind"
  and "unwind" primitives.  These primitives are not exposed to other
  modules.

* module/ice-9/eval.scm (primitive-eval): Remove dynwind case.
* module/language/scheme/decompile-tree-il.scm (do-decompile):
  (choose-output-names): Remove dynwind cases.

* module/language/tree-il.scm: Remove <dynwind>.  Yaaay!

* module/language/tree-il/analyze.scm (analyze-lexicals): Remove dynwind
  cases.

* module/language/tree-il/compile-glil.scm (*primcall-ops*): Add wind
  and unwind.
  (flatten-lambda-case): Remove dynwind case.  Yay!

* module/language/tree-il/cse.scm (cse):
* module/language/tree-il/debug.scm (verify-tree-il):
* module/language/tree-il/effects.scm (make-effects-analyzer):
* module/language/tree-il/peval.scm (singly-valued-expression?, peval):
  Remove <dywind> cases.  Inline primcalls to dynamic-wind.  Add
  constant folding for thunk?.

* module/language/tree-il/primitives.scm (*interesting-primitive-names*):
  Remove @dynamic-wind, and add procedure? and thunk?.
  (*effect+exception-free-primitives*): Add procedure? and thunk?.
  (*multiply-valued-primitives*): Remove @dynamic-wind.
  Remove @dynamic-wind expander.

* test-suite/tests/peval.test ("partial evaluation"): Update tests for
  dynwind desugaring.
2013-06-27 22:02:43 +02:00
Andy Wingo
5da2aae364 remove apply:nconc2last
* libguile/eval.c (scm_nconc2last): Remove, now unused.
* doc/ref/api-evaluation.texi (Fly Evaluation): Remove docs.
2013-06-27 22:02:42 +02:00
Andy Wingo
1773bc7dd5 Remove @prompt memoizer
* libguile/memoize.h:
* libguile/memoize.c (MAKMEMO_CALL_WITH_PROMPT, memoize, unmemoize):
  Remove the @prompt memoizer in favor of recognizing call-with-prompt
  primcalls.  Rename SCM_M_PROMPT to SCM_M_CALL_WITH_PROMPT, and pass a
  thunk instead of an expression so that it has normal applicative
  order.

* libguile/expand.c (PRIMITIVE_REF, PRIMCALL, expand): Produce primcalls
  from forms whose car is a primitive.
  (expand_atat): Recognize (@@ primitive FOO) as being a primitive-ref.

* module/ice-9/boot-9.scm (call-with-prompt): Instead of dispatching to
  the wonky @prompt memoizer, residualize a primcall to
  call-with-prompt.  The memoizer will DTRT to allow call-with-prompt to
  be interpreted correctly without needing an additional binding.

* module/ice-9/eval.scm (primitive-eval): Change the 'prompt clause to a
  call to call-with-prompt.

* module/language/tree-il/primitives.scm: No more need to recognize
  @prompt.

* libguile/eval.c (eval): Adapt to SCM_M_PROMPT renaming to
  SCM_M_CALL_WITH_PROMPT, and apply the thunk.

* libguile/throw.c (pre_init_throw): Adapt to scm_abort_to_prompt_star
  rename.
2013-06-27 11:31:21 +02:00
Ludovic Courtès
4af0d97ee6 Print the faulty object upon invalid-keyword errors.
* libguile/vm.c (vm_error_kwargs_invalid_keyword,
  vm_error_kwargs_unrecognized_keyword): Add parameter.  Pass it
  enclosed in a list as the last argument to `scm_error_scm'.
* libguile/vm-i-system.c (bind_kwargs): Adjust accordingly.
* libguile/eval.c (error_invalid_keyword, error_unrecognized_keyword):
  Add parameter.
  (prepare_boot_closure_env_for_apply): Adjust accordingly.
* module/ice-9/eval.scm (primitive-eval): Likewise.
* libguile/error.c (scm_error_scm): Mention `keyword-argument-error' in
  docstring.
* module/ice-9/boot-9.scm (keyword-error-printer): New procedure; use it.
* test-suite/tests/optargs.test (c&e, with-test-prefix/c&e): Remove.
  ("define*")["unrecognized keyword"]: Test the value passed along the
  `keyword-argument-error' exception.
  ["invalid keyword"]: New test.
* doc/ref/api-control.texi (Error Reporting): Update `scm-error'
  description.
2013-06-04 12:08:02 +02:00
Andy Wingo
747bd5347d merge stable-2.0
There are some bugs with command-line handling that will be sorted out
with the next commit.
2013-01-23 16:12:08 +01:00
Andy Wingo
581f410fbd case-lambda* clauses fail to match if too many positionals
* doc/ref/api-procedures.texi (Case-lambda): Expand case-lambda*
  documentation.

* module/ice-9/eval.scm (primitive-eval):
* libguile/eval.c (prepare_boot_closure_env_for_apply): Dispatch to the
  next case-lambda clause if there are too many positionals.

* doc/ref/vm.texi (Function Prologue Instructions):
* libguile/vm-i-system.c (bind-optionals/shuffle-or-br): New
  instruction, like bind-optionals/shuffle but can dispatch to the next
  clause if there are too many positionals.

* module/language/assembly/disassemble.scm (code-annotation):
* module/language/assembly/decompile-bytecode.scm (decode-load-program):
* module/language/assembly/compile-bytecode.scm (compile-bytecode): Add
  case for bind-optionals/shuffle-or-br.
* module/language/glil/compile-assembly.scm (glil->assembly): If there
  is an alternate, use bind-optionals/shuffle-or-br instead of
  bind-optionals/shuffle.

* test-suite/tests/optargs.test ("case-lambda*"): Add tests.
2013-01-14 11:38:09 +01:00
Mark H Weaver
e0c211bb2e Merge remote-tracking branch 'origin/stable-2.0'
Conflicts:
	GUILE-VERSION
	libguile/posix.c
	module/ice-9/eval.scm
	test-suite/tests/cse.test
2013-01-07 17:23:26 -05:00
Ludovic Courtès
c438cd7175 eval: Store docstrings for lambdas.
Fixes <http://bugs.gnu.org/12173>.
Reported by Ian Price <ianprice90@googlemail.com>.

* libguile/memoize.c (MAKMEMO_LAMBDA): New `docstring' parameter.  Add
  it as the second argument of `SCM_M_LAMBDA'.  Update caller.
  (memoize)[SCM_M_LAMBDA]: Extract docstring from EXP; when `memoize'
  returns, add the docstring to the lambda's arguments.
  (unmemoize)[SCM_M_LAMBDA]: Adjust to new argument layout of
  `SCM_M_LAMBDA'.
* libguile/eval.c (BOOT_CLOSURE_NUM_REQUIRED_ARGS,
  BOOT_CLOSURE_HAS_REST_ARGS, BOOT_CLOSURE_IS_REST,
  BOOT_CLOSURE_PARSE_FULL): Adjust to new argument layout of
  `SCM_M_LAMBDA'.
* module/ice-9/eval.scm (primitive-eval)[make-general-closure]:
  Likewise.
  [eval]: When EXP is a lambda, match its docstring; when the docstring
  is not #f, add it to the closures procedure properties.
* test-suite/tests/eval.test ("docstrings"): New test prefix.

* libguile/procs.c (sym_documentation): Rename to...
  (scm_sym_documentation): ... this.  Make it global.
* libguile/procs.h (scm_sym_documentation): New declaration.
2012-11-28 16:43:59 +01:00
Andy Wingo
9d381ba478 dynstack: pushing a prompt no longer allocates memory
* libguile/control.h: Remove scm_t_prompt_registers and
  scm_c_make_prompt_registers.
  (scm_c_abort): Take a pointer to a jmpbuf instead of a cookie.  It
  will serve the same purpose.
* libguile/control.c (reify_partial_continuation, scm_at_abort): Adapt
  to new prompt representation.

* libguile/dynstack.h:
* libguile/dynstack.c (scm_dynstack_push_prompt): Prompts now have 5
  words instead of 2, as they now push the fp, sp, ip, and jmpbuf on the
  stack separately.  This avoids allocation.
  (scm_dynstack_find_prompt): Likewise, add return values for fp, sp,
  etc.
  (scm_dynstack_wind_prompt): Replaces scm_dynstack_relocate_prompt.

* libguile/eval.c (eval):
* libguile/stacks.c (find_prompt):
* libguile/throw.c (pre_init_catch): Adapt to the new prompt mechanism.

* libguile/vm-engine.c (vm_engine): Setjmp an on-stack jmpbuf every time
  the VM enters.  We can then re-use that jmpbuf for all prompts in that
  invocation.

* libguile/vm-i-system.c (partial_cont_call): Adapt to change in prompt
  representation.  We don't need to wind here any more, since we pass in
  the prompt's jmpbuf.
  (prompt): Adapt to scm_dynstack_push_prompt change.
  (abort): Adapt to vm_abort change.

* libguile/vm.h (struct scm_vm): No more cookie.

* libguile/vm.c (vm_abort): Adapt to scm_c_abort change.
  (vm_reinstate_partial_continuation): Rewind the dynamic stack here,
  now that we do have a valid jmpbuf.
  (make_vm): No need to initialize a cookie.
2012-03-07 10:27:16 +01:00
Andy Wingo
9ede013f68 the dynamic stack is really a stack now, instead of a list
* libguile/dynstack.h:
* libguile/dynstack.c: New files, implementing the dynamic stack as a
  true stack instead of a linked list.  This lowers the cost of
  dynwinds: frames, winders, prompts, with-fluids, and dynamic-wind.
  For the most part, we allocate these items directly on the stack.

* libguile/dynwinds.h:
* libguile/dynwinds.c: Adapt all manipulators of the wind stack to use
  interfaces from dynstack.c.  Remove heap-allocated winder and frame
  object types.
  (scm_dowinds, scm_i_dowinds): Remove these.  The first was exported,
  but it was not a public interface.

* libguile/continuations.c:
* libguile/continuations.h (scm_t_contregs): Continuation objects
  reference scm_t_dynstack* values now.  Adapt to the new interfaces.

* libguile/control.c:
* libguile/control.h: There is no longer a scm_tc7_prompt kind of object
  that can be allocated on the heap.  Instead, the prompt flags, key,
  and registers are pushed on the dynwind stack.  (The registers are
  still on the heap.)  Also, since the vm_cont will reference the
  dynwinds, make the partial continuation stub take just one extra arg,
  instead of storing the intwinds separately in the object table.

* libguile/fluids.c:
* libguile/fluids.h: No more with-fluids objects; instead, the fluids go
  on the dynstack.  The values still have to be on the heap, though.
  (scm_prepare_fluids, scm_swap_fluids): New internal functions,
  replacing scm_i_make_with_fluids and scm_i_swap_with_fluids.

* libguile/print.c: Remove prompt and with-fluids printers.

* libguile/tags.h: Revert prompt and with-fluids tc7 values to what they
  were before they were allocated.

* libguile/vm-i-system.c (partial_cont_call): Just pop the vmcont, the
  intwinds will not be passed as a second arg.  Rewind the dynamic stack
  from within the VM, so that any rewinder sees valid prompt entries.
  (call_cc, tail_call_cc): Adapt to pass the dynstack to
  scm_i_vm_capture_stack.
  (prompt, wind, unwind, wind_fluids, unwind_fluids): Adapt to the new
  interfaces.

* libguile/vm.h (scm_i_capture_current_stack): Rename from
  scm_i_vm_capture_continuation.
  (scm_i_vm_capture_stack): Take a dynstack as an argument.
* libguile/vm.c (vm_reinstate_partial_continuation): Don't wind here, as
  that could result in winders seeing invalid prompts.

* libguile/eval.c:
* libguile/root.c:
* libguile/stacks.c:
* libguile/threads.c:
* libguile/threads.h:
* libguile/throw.c: Adapt other users of dynwinds to use the dynstack.
2012-03-03 17:06:02 +01:00
Andy Wingo
dfadcf85cb Merge remote-tracking branch 'origin/stable-2.0'
Conflicts:
	libguile/debug.h
	module/ice-9/psyntax-pp.scm
	module/ice-9/psyntax.scm
	module/language/tree-il/peval.scm
	module/language/tree-il/primitives.scm
2012-01-30 20:27:35 +01:00
Mark H Weaver
07c2ca0f0d Rename scm_call_varargs -> scm_call
* libguile/eval.c, libguile/eval.h, doc/ref/api-evaluation.texi,
  test-suite/standalone/test-loose-ends.c, NEWS: Rename
  scm_call_varargs -> scm_call

Suggested by Ludovic Courtès <ludo@gnu.org>
2012-01-30 11:02:29 -05:00
Mark H Weaver
741b8a2300 Implement scm_call_varargs and scm_call_{7,8,9}
* libguile/eval.c (scm_call_7, scm_call_8, scm_call_9,
  scm_call_varargs): New functions.

* libguile/eval.h: Add prototypes.

* doc/ref/api-evaluation.texi: Add documentation.

* test-suite/standalone/test-loose-ends.c: Add tests.

* NEWS: Add news entry.
2012-01-30 10:27:44 -05:00
Andy Wingo
0607ebbfcf locking for putc, puts
* libguile/ports.c (scm_putc, scm_puts):
* libguile/ports.h (scm_putc_unlocked, scm_puts_unlocked): Separate into
  _unlocked and locked variants.  Change all callers to use the
  _unlocked versions.
2011-11-08 00:55:05 +01:00
Andy Wingo
fdecb44f32 boot_closure_print cleanup
* libguile/eval.c (boot_closure_print): Get at the bits directly.
2011-10-24 18:55:35 +02:00
Andy Wingo
6fc3eae477 sequence of expressions -> seq of head and tail
* libguile/expand.h:
* module/language/tree-il.scm: Rename "sequence" to "seq", and instead
  of taking a list of expressions, take a head and a tail.

* module/language/tree-il/analyze.scm:
* module/language/tree-il/compile-glil.scm:
* module/language/tree-il/fix-letrec.scm:
* module/language/tree-il/spec.scm:
* module/language/elisp/compile-tree-il.scm:
* module/ice-9/psyntax.scm:
* module/ice-9/psyntax-pp.scm:
* module/ice-9/eval.scm:
* libguile/memoize.h:
* libguile/memoize.c:
* libguile/expand.c:
* libguile/eval.c: Adapt to the new seq format.
2011-06-02 19:13:32 +02:00
Andy Wingo
393baa8a44 scm_is_false instead of == SCM_BOOL_F; also is_null, is_true, etc
* libguile/deprecation.c (scm_issue_deprecation_warning)
* libguile/eval.c (CAPTURE_ENV):
* libguile/goops.c (make_dispatch_procedure, make_class_from_symbol):
  (create_smob_classes):
* libguile/guardians.c (finalize_guarded, scm_i_get_one_zombie):
* libguile/hashtab.c (scm_fixup_weak_alist, scm_internal_hash_fold):
* libguile/i18n.c (scm_nl_langinfo)
* libguile/load.c (scm_primitive_load)
* libguile/posix.c (scm_setrlimit)
* libguile/socket.c (scm_to_sockaddr):
* libguile/srcprop.c (scm_make_srcprops): Use scm_is_false / scm_is_true
  / scm_is_null instead of comparing against SCM_BOOL_F et al.
2011-05-13 15:28:41 +02:00
Andy Wingo
b2b33168b1 more care regarding SCM_PACK and SCM_UNPACK
* libguile/control.c (reify_partial_continuation):
* libguile/eval.c (RETURN_BOOT_CLOSURE):
* libguile/frames.c (scm_frame_num_locals, scm_frame_local_ref)
  (scm_frame_local_set_x)
* libguile/frames.h (SCM_FRAME_SET_RETURN_ADDRESS):
  (SCM_FRAME_SET_MV_RETURN_ADDRESS, SCM_FRAME_SET_DYNAMIC_LINK):
* libguile/goops.c (scm_class_of, scm_primitive_generic_generic)
  (scm_c_extend_primitive_generic, compute_getters_n_setters)
  (scm_sys_initialize_object):
* libguile/guardians.c (finalize_guarded):
* libguile/list.c (SCM_I_CONS):
* libguile/macros.c (scm_i_make_primitive_macro)
  (scm_make_syntax_transformer):
* libguile/memoize.c (MAKMEMO, SCM_MAKE_MEMOIZER)
  (SCM_MAKE_REST_MEMOIZER):
* libguile/modules.c (scm_module_reverse_lookup)
* libguile/print.c (iprin1):
* libguile/promises.c (scm_make_promise)
* libguile/srcprop.c (scm_make_srcprops):
* libguile/vectors.c (scm_c_vector_ref):
* libguile/vm-engine.c (vm_engine)
* libguile/vm-i-scheme.c (REL, add1, sub1):
* libguile/vm-i-system.c (new_frame, call_cc)
* libguile/weaks.h (SCM_WEAK_PAIR_WORD_DELETED_P): Be more careful about
  SCM_PACK / SCM_UNPACK.
2011-05-13 15:28:08 +02:00
Andy Wingo
a2230b653b map and for-each in scheme
* module/ice-9/boot-9.scm (map, for-each): Implement in Scheme instead
  of C.  There are boot versions before `cond' is defined.
  (map-in-order): Define this alias here instead of in evalext.h.

* libguile/eval.c: Stub out the map and for-each definitions to just
  call into Scheme.

* libguile/evalext.c: Remove map-in-order definition.

* module/srfi/srfi-1.scm: Replace all calls to map1 with calls to map.
  (map, for-each): Define implementations here, in Scheme, instead of in
  C.

* test-suite/tests/eval.test (exception:wrong-length, "map"): Update the
  expected exception for mapping over lists of different lengths.

* libguile/srfi-1.h:
* libguile/srfi-1.c: Remove map and for-each definitions.  Remove the
  bit that extended the core `map' primitive with another method: the
  right way to do that is with modules.
2011-05-05 23:07:37 +02:00
Andy Wingo
f3a9a51d3e MV truncation in the boot evaluator
* libguile/eval.c (truncate_values): New helper.
  (EVAL1): New macro, does an eval then truncates the values.
  (eval, prepare_boot_closure_env_for_apply)
  (prepare_boot_closure_env_for_eval): Use EVAL1 in appropriate places
  to get multiple-values truncation even here in the boot evaluator.

eval.c fixen
2011-04-29 11:14:54 +02:00
Andy Wingo
572eef50c2 fix prompt and abort with the boot evaluator
* libguile/control.h:
* libguile/control.c (scm_i_prompt_pop_abort_args_x): Take a VM instead
  of a prompt, given that it's the VM's registers that record the abort
  arguments, not the prompt registers (which actually point right below
  the abort values).

* libguile/eval.c (eval):
* libguile/throw.c (pre_init_catch): Pass the vm instead of a prompt.
2011-03-29 17:41:31 +02:00
Andy Wingo
f32e67be0b add scm_call_{5,6}
* libguile/eval.h:
* libguile/eval.c (scm_call_5, scm_call_6): New scm_call functions; why
  not.
2011-03-08 21:02:36 +01:00
Andy Wingo
b6b84131cd remove obsolete comments
* libguile/eval.c (scm_nconc2last):
* libguile/strports.c (scm_c_read_string): Remove some obsolete
  comments.
2011-03-05 21:48:47 +01:00
Andy Wingo
7112a34d56 volatile locals in bootstrap evaluator
* libguile/eval.c (eval): For SCM_M_PROMPT, mark the locals needed after
  a longjmp as volatile.  Perhaps related to bug 32340.
2011-02-10 10:40:57 +01:00
Andy Wingo
4a655e50a3 use scm_from_latin1_symboln for string literals and load-symbol
* libguile/bytevectors.c:
* libguile/eval.c:
* libguile/goops.c:
* libguile/i18n.c:
* libguile/load.c:
* libguile/memoize.c:
* libguile/modules.c:
* libguile/ports.c:
* libguile/print.c:
* libguile/procs.c:
* libguile/programs.c:
* libguile/read.c:
* libguile/script.c:
* libguile/srfi-14.c:
* libguile/stacks.c:
* libguile/strings.c:
* libguile/throw.c:
* libguile/vm.c: Use scm_from_latin1_symboln to make symbols from string
  literals, because they aren't in the user's locale -- they are in
  ASCII, and we can optimize this case.

* libguile/vm-i-loader.c: Also use scm_from_latin1_symboln when loading
  narrow symbols.
2011-01-07 09:18:41 -08:00