* module/ice-9/boot-9.scm (default-prompt-tag, make-prompt-tag): New
functions.
(call-with-prompt, abort-to-prompt): Rename from `prompt' and `abort',
respectively. These names are more clear, and allow `prompt' and
`abort' to have more convenient, less general bindings.
(default-throw-handler, custom-throw-handler, catch, %start-stack):
Adapt callers.
* module/ice-9/control.scm: Adapt re-export list.
(control): Remove binding, until we're sure that it is Sitaram's
control.
(abort): New binding, aborts to the nearest prompt with the default
tag.
(%): Use call-with-prompt.
* module/language/tree-il/primitives.scm (*primitive-expand-table*):
(*interesting-primitive-names*): Adapt for prompt/abort changes.
* test-suite/tests/control.test: Take advantage of the defaults for %
and abort.
* libguile/debug.h:
* libguile/debug.c (scm_sys_start_stack): Removed, we implement this in
Scheme now.
* libguile/vm.h:
* libguile/vm.c (scm_vm_call_with_new_stack): Likewise removed.
* module/ice-9/boot-9.scm (%start-stack): Implement in terms of prompts.
(%stacks): New fluid, for tracking active stacks.
(start-stack): Implement using syntax-rules.
The bug was introduced dad6817f ("Use the R6RS I/O API in
`write-bytecode'.").
* module/language/assembly/compile-bytecode.scm
(write-bytecode)[write-string]: Rename to...
[write-latin1-string]: ... this. Add the `write-loader-len' call.
Write each character individually instead of using `string->utf8'.
[write-loader]: Remove.
* test-suite/tests/asm-to-bytecode.test ("compiler")[load-string "æ"]:
New test.
* libguile/fluids.c: Remove outdated comment on the complexity of fluid GC.
(FLUID_GROW): Increase to 128.
(allocated_fluids): Change to `void **'.
(allocated_fluids_num): Remove.
(grow_dynamic_state): Remove race-condition checker. Grow to
ALLOCATED_FLUIDS_LEN.
(next_fluid_num): Rename to...
(new_fluid): ... this. Return a fluid instead of a fluid number.
Assume ALLOCATED_FLUIDS is sparse and search for a free number in it.
Make ALLOCATED_FLUIDS point to pointerless memory and initialize
individual elements with a pointer to the new fluid. Register a
disappearing link from there to the fluid.
(scm_make_fluid): Use `new_fluid ()'.
(scm_fluid_ref, scm_fluid_set_x, scm_i_swap_with_fluids): Remove
assertion that wasn't checked in a thread-safe way.
* test-suite/tests/fluids.test ("initial fluid values")["initial value
is inherited from parent thread"]: New test.
("fluid values are thread-local"): New test.
* libguile/eval.c (CAR, CDR, CAAR, CADR, CDAR, CDDR, CADDR, CDDDR): Use
the macro variants, not the functions.
(eval)[SCM_M_CALL]: When invoking a VM program, accumulate its
arguments on the stack rather than on the heap.
* libguile/memoize.c (CAR, CDR, CAAR, CADR, CDAR, CDDR, CADDR, CDDDR,
CADDR): Use the macro variants, not the functions.
(scm_memoized_expression_typecode): Use `SCM_I_MAKINUM' instead of
`scm_from_uint16'.
* libguile/dynwind.c: Update comment regarding what can be on the wind
stack.
(scm_i_dowinds): Clean up to remove @bind and catch/throw-handler
cases, to add a case for prompts, and to be more strict in general
regarding the set of things that can be on the wind stack. Fixes a bug
whereby prompts were accessed via SCM_CAR; thanks to Ken Raeburn for
the report.
This can happen, e.g., when printing "UNRESOLVED: regexp.test: TEST-NAME",
where TEST-NAME contains characters that cannot be converted to the
encoding of the current output or error port.
* test-suite/guile-test (main): Set the conversion strategy for the
output and error ports to `escape'.
* test-suite/tests/regexp.test (current-output-port): Likewise.
the module currently being loaded (i.e., make-texinfo.scm itself),
resulting in confusing behavior for offset builds. So, don't use
them.
* doc/ref/Makefile.am ($(snarf_doc).texi): Use an absolute path for
the input file.
As a side effect, it fixes tests on platforms with no 8-bit locale and
where executing regexps on characters >= 128 can lead to errors such as
`cannot convert to output locale "US-ASCII": ""\x80""'.
This commit partially reverts 7583976b ("More setlocale robustness in
regexp tests").
* test-suite/tests/regexp.test (mysetlocale, set-latin-1): Remove.
("regexp-quote"): Use `with-latin1-locale' instead of the above
procedures.
* test-suite/lib.scm (with-locale*): Set LOC to the previous locale
name, not to the new locale name. Only restore LOC when it's not #f.
(with-locale): Use `syntax-rules'.
* module/ice-9/psyntax-pp.scm: Regenerated.
* module/ice-9/psyntax.scm (chi-top-sequence): Track changes to the
current module. Allows e.g. top-level `define-module' within a begin
to work.
* test-suite/tests/syncase.test ("changes to expansion environment"):
Enable test.
* module/language/tree-il/compile-glil.scm (flatten): Change to use the
anonymous <glil-mv-bind> form when truncating to 0 or 1 values. In
those cases, remove the <glil-unbind> statements. As a side effect,
fixes compilation of abort in a "values" context.
Thanks to Tristan Colgate for the bug report.
* test-suite/tests/tree-il.test: Update to expect anonymous mv-bind.
* module/language/glil/compile-assembly.scm (glil->assembly): Allow an
integer for `vars', which means simply to truncate the values, and not
pass binding metadata to the compiler.
* test-suite/tests/control.test ("restarting partial continuations"):
Add more tests, for `abort' in different positions. All succeed in the
evaluator but fail with the compiler.
This is a followup to d900a8557d ("Fix
off-by-one error when initializing vectors in `make-srfi-4-vector'.").
* libguile/srfi-4.c (scm_make_srfi_4_vector): Don't initialize RET when
LEN is zero.
* test-suite/tests/bytevectors.test, test-suite/tests/keywords.test,
test-suite/tests/procprop.test, test-suite/tests/srfi-35.test,
test-suite/tests/srfi-88.test: Add "coding:" cookie on the first line.
* libguile/srfi-4.c (scm_make_srfi_4_vector): When FILL is bound and
non-zero, initialize the last element.
* test-suite/tests/srfi-4.test ("TAG vectors")["make-TAGvector"]: New
tests.
* libguile/control.h (SCM_PROMPT_HANDLER): Remove, it was unused.
(SCM_PROMPT_DYNWINDS): Rename from SCM_PROMPT_DYNENV.
* libguile/control.c: (scm_c_make_prompt): Take another arg, the winds
that are to be in place for the prompt. Fix allocation to be 4 words
instead of 5 (the handler was never used).
* libguile/eval.c (eval):
* libguile/throw.c (pre_init_catch): Adapt to scm_c_make_prompt change.
* libguile/vm-i-system.c (partial-cont-call): Grovel the new elements of
the wind list in order to call setjmp() on the new prompts. Pass
cookie to vm_reinstate_partial_continuation.
(prompt): Adapt to scm_c_make_prompt change.
* libguile/vm.c (vm_reinstate_partial_continuation): Take a cookie arg,
used when winding captured prompts onto the stack. Winding a prompt
implies making a new prompt, actually -- with new registers, a new
jump buffer, new winds, etc.
* test-suite/tests/control.test ("rewinding prompts"): Add a test for
rewinding prompts.
* libguile/throw.c (tc16_jmpbuffer, tc16_pre_unwind_data): Remove these
smob types, and associated constructors and accessors (all internal).
(scm_catch, scm_catch_with_pre_unwind_handler):
(scm_with_throw_handler, scm_throw): Simply dispatch to scheme.
Lovely.
(tc16_catch_closure): Introduce a new applicable smob type, for use by
the C catch interface. All constructors and accessors are internal.
(scm_c_catch, scm_internal_catch, scm_c_with_throw_handler): Build
applicable smobs out of the C procedure arguments, so we can then
dispatch through scm_catch et al.
(scm_ithrow): Dispatch to scm_throw.
(pre_init_catch, pre_init_throw): Restricted catch/throw
implementation for use before boot-9 runs.
(scm_init_throw): Bind the pre-init catch and throw definitions.
* module/ice-9/boot-9.scm (prompt, abort): Move these definitions up in
the file.
(catch, throw, with-throw-handler): Implement in Scheme. Whee!
* libguile/deprecated.h:
* libguile/deprecated.c (scm_internal_lazy_catch, scm_lazy_catch):
Deprecate, and print out a nasty warning that people should change to
with-throw-handler.
* libguile/throw.h:
* libguile/throw.c (scm_c_with_throw_handler): Deprecate the use of the
lazy_catch_p argument, printing out a nasty warning if someone
actually passes 1 as that argument. The combination of the pre-unwind
and post-unwind handlers should be sufficient.
* test-suite/tests/exceptions.test: Remove lazy-catch tests, as they are
deprecated. Two of them fail:
* throw/catch: effect of lazy-catch unwinding on throw to another key
* throw/catch: repeat of previous test but with lazy-catch
Hopefully people are not depending on this behavior, and the warning is
sufficiently nasty for people to switch. We will see.
* test-suite/tests/eval.test ("promises"): Use with-throw-handler
instead of lazy-catch.
* doc/ref/api-debug.texi:
* doc/ref/api-control.texi: Update to remove references to lazy-catch,
folding in the useful bits to with-throw-handler.
* libguile/control.h:
* libguile/control.c (scm_c_make_prompt): Instead of taking a VM arg,
take the registers directly.
(scm_c_abort): Declare as returning void. In fact it will never
return.
* libguile/eval.c (eval):
* libguile/throw.c (pre_init_catch): Adapt to prompt API change.
* libguile/vm-i-system.c (prompt): Pass the abort ip as the ip to
scm_c_make_prompt. This fixes a bug in which we used the "offset"
local var, but it wasn't guaranteed to be around after a longjmp.
* test-suite/tests/control.test ("suspend/resume with fluids"):
("restarting partial continuations"):
("reified continuations", "escape-only continuations"): More tests.
eval.scm's handling of with-fluids doesn't leave the VM
* module/ice-9/eval.scm (primitive-eval): Implement with-fluids in terms
of with-fluids, to avoid recursively calling the VM via with-fluids*.
* libguile/vm-engine.c (vm_error_continuation_not_rewindable):
* libguile/vm-i-system.c (partial-cont-call):
* libguile/vm.h (SCM_VM_CONT_PARTIAL_P):
(SCM_VM_CONT_REWINDABLE_P): Fix a bug in which we weren't checking if
a partial continuation was actually rewindable.
* libguile/init.c (scm_i_init_guile): Call scm_init_control after
initing fluids.
* libguile/control.h (scm_sys_default_prompt_tag): New internal var.
* libguile/control.c (scm_c_abort): If abort is called for an unknown
tag, raise an exception, except if the tag was the default prompt tag,
in which case really abort -- to prevent recursion when some other
patches land.
(scm_init_control): Define %default-prompt-tag in the default
environment.
* libguile/control.c (cont_objcode):
* libguile/vm-i-system.c (partial-cont-call):
* libguile/vm.c (vm_reinstate_partial_continuation): Don't keep the
"external winds" in a partial continuation, as they aren't logically
part of the continuation. Reinstate the "internal winds" when entering
a partial continuation. Things seem to work!
* libguile/vm-i-system.c (partial-cont-call): Sync registers before
splatting a partial continuation, and cache them back afterwards.
* libguile/vm.c (vm_reinstate_partial_continuation): Actually implement,
except dynamic-wind.
