* libguile/exceptions.c (exception_epoch_fluid): Rename from
active_exception_handlers_fluid.
(scm_dynwind_throw_handler): Increment exception epoch instead of
resetting active exception handlers.
(scm_init_exceptions): Update.
* module/ice-9/boot-9.scm (with-exception-handler): Rework to associate
an "epoch" fluid with each exception handler.
(with-throw-handler): Establish a new epoch, during the execution of a
throw handler.
(raise-exception): Rework to avoid capturing a list of exception
handlers, and to use epochs as a way to know which handlers have already
been examined and which are on the dispatch stack.
* test-suite/tests/exceptions.test ("throwing within exception
handlers"): New test.
* module/ice-9/pretty-print.scm (call-with-truncating-output-string):
New function.
* module/ice-9/pretty-print.scm (generic-write): Rewrite so that instead
of keeping track of the column, we just use port-column on the port.
Also, when checking if a possibly-improper list can print on one line,
use new call-with-truncating-output-string so as to always abort early,
even for long bytevectors.
This also makes soft ports suspendable.
* am/bootstrap.am (SOURCES): Add (ice-9 soft-ports).
* libguile/init.c (scm_i_init_guile): No need to init vports.
* libguile/vports.c: Call out to (ice-9 soft-ports).
* libguile/vports.h: Remove internal scm_init_vports.
* module/ice-9/boot-9.scm (the-scm-module): Import (ice-9 soft-ports).
Really this enlarges the boot closure a bit, so we should probably
refactor.
* module/ice-9/soft-ports.scm: New file.
* libguile/r6rs-ports.c: Call out to Scheme instead of defining here.
* libguile/r6rs-ports.h: Put custom binary port decls together, to
deprecate later.
* module/ice-9/binary-ports.scm: Re-implement custom binary ports in
terms of custom ports.
Custom ports are a kind of port that exposes the C port type interface
directly to Scheme. In this way the full capability of C is available
to Scheme, and also the read and write functions can be tail-called from
Scheme (via port-read / port-write).
* libguile/custom-ports.c:
* libguile/custom-ports.h:
* module/ice-9/custom-ports.scm: New files.
* libguile/init.c:
* libguile/Makefile.am:
* am/bootstrap.am: Add to the build.
* doc/ref/api-io.texi: Update the manual.
* module/ice-9/pretty-print.scm (generic-write): Not really sure why
read macros are duplicated, but this is a refactor to use more match and
less cadr.
Fixes <https://bugs.gnu.org/62290>.
Based on the implementation in ports.c. I don't understand what this
code is really doing, but the suspendable ports implementation differs
from the similar C code for a couple of inequalities.
* module/ice-9/suspendable-ports.scm (decode-utf8, bad-utf8-len): Flip a
couple of inequalities.
* test-suite/tests/ports.test ("string ports"): Add additional invalid
UTF-8 test case.
* NEWS: Update.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
* module/language/tree-il/peval.scm (peval): Reduce multiple case lambda
in <call> trees according to the number of arguments. Do not try to
reduce case-lambda using keyword arguments.
* test-suite/tests/peval.test: Tests.
* module/language/tree-il/analyze.scm (<module-info>): New record type.
(unused-module-analysis): New variable.
(make-unused-module-analysis): New analysis.
(make-analyzer): Add it.
* module/system/base/message.scm (%warning-types): Add 'unused-module'.
* test-suite/tests/tree-il.test (%opts-w-unused-module): New variable.
("warnings")["unused-module"]: New test prefix.
* NEWS: Update.
This commit adds internal definitions to the following derived
forms: when, unless, cond, case, with-fluids, and and-let*.
* doc/ref/api-control.texi (Conditionals): Update the syntax and docs
of when, unless, cond, and case.
* module/ice-9/and-let-star.scm (and-let*): Changed begins to let.
* module/ice-9/boot-9.scm (cond, case, when, unless, with-fluids):
Changed begins to let.
This reduces the amount of memory that needs to be allocated while
writing the ELF file to disk.
Note: We're abusing #:page-aligned? in 'link-elf' to choose whether to
return a bytevector or a procedure.
* module/system/vm/linker.scm (process-reloc): Subtract SECTION-OFFSET
when writing to BV.
(write-linker-object): Pass BV directly to the linker object writer.
(link-elf): When PAGE-ALIGNED? is false, call 'bytevector-slice' from
here. When it is true, return a procedure that takes a port and writes
to it, without having to allocate a bytevector for the whole ELF
container.
* module/language/bytecode/spec.scm (bytecode->value): Handle X being a
procedure instead of a bytevector.
(bytecode) <#:printer>: Likewise.
* test-suite/tests/linker.test (link-elf-with-one-main-section): Pass
#:page-aligned? #f.
This reduces the amount of memory used during linking and reduces the
number of copies to be done between bytevectors.
* module/system/vm/linker.scm (<linker-object>): Remove 'bv' field and
add 'size' and 'writer'.
(make-linker-object): Adjust accordingly.
(string-table-size): New procedure.
(link-string-table!): Remove.
(string-table-writer): New procedure.
(allocate-segment): Adjust 'make-linker-object' call.
(find-shstrndx): Call the 'linker-object-writer' of O.
(add-elf-objects): Adjust 'make-linker-object' call. Remove
'make-bytevector' allocations and move serialization to lazy 'writer'
procedures. Define 'segments' and 'add-header-segment!'. Return the
latter as the first value.
* module/system/vm/assembler.scm (make-object): Remove 'bv' parameter
and add 'size' and 'writer'.
(link-data): Remove 'make-bytevector' call and move serialization to
a lazy 'writer' procedure.
(link-text-object): Likewise.
(link-frame-maps): Likewise.
(link-dynamic-section): Likewise.
(link-shstrtab): Likewise.
(link-symtab): Likewise.
(link-arities): Likewise, and remove 'bytevector-append'.
(link-docstrs): Likewise.
(link-procprops): Likewise.
(link-debug): Likewise, and define 'copy-writer'.
* test-suite/tests/linker.test (link-elf-with-one-main-section): Adjust
accordingly.
* module/system/vm/assembler.scm (process-relocs): Remove 'buf'
parameter and turn into a pure function.
(patch-relocs!): New procedure. Perform the side effects previously
done in 'process-relocs'.
(link-text-object): Adjust accordingly.
Fixes <https://bugs.gnu.org/60522>.
Reported by Sascha Ziemann <ceving@gmail.com>.
* module/language/tree-il/primitives.scm (make-vector): Return #f when
passed an incorrect number of arguments.
* test-suite/tests/peval.test ("partial evaluation"): Add tests.
* module/rnrs/bytevectors/gnu.scm: New file.
* am/bootstrap.am (SOURCES): Add it.
* libguile/bytevectors.c (scm_bytevector_slice): New function.
* libguile/bytevectors.h (scm_bytevector_slice): New declaration.
* test-suite/tests/bytevectors.test ("bytevector-slice"): New tests.
* doc/ref/api-data.texi (Bytevector Slices): New node.
* module/language/tree-il/peval.scm
(augment-var-table-with-externally-introduced-lexicals): New helper.
* module/language/tree-il/peval.scm (peval): Augment store with any
lexicals introduced by expand-primitives.
* test-suite/tests/peval.test ("partial evaluation"): Add tests.
* module/language/tree-il/primitives.scm (bind-lexicals): New helper.
(expand-eq, expand-chained-comparisons): Ensure all arguments are
eagerly evaluated. Previously an intermediate #f result would shortcut
the evaluation.
* test-suite/tests/compiler.test ("size effects in multi-arg eq / <"):
Add test.
Workaround for <https://bugs.gnu.org/57948>.
* module/system/vm/frame.scm (frame-call-representation): Treat a
binding as "unspecified" if its slot exceeds 'frame-num-locals'.
* module/srfi/srfi-35.scm (condition): Use 'make-exception' instead of
'make-compound-condition', which is unbound in this module.
* test-suite/tests/srfi-35.test ("syntax")["compound condition,
hygienic macro expansion"]: New test.
This makes the docstring attached to the curried function being defined
rather than the result of its application until a function that runs the
body is obtained, fixing
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=50068
Locations are stored in tree-il records in "source vector" form, but
`location-string' was rendering these as <unknown-location>.
* module/system/base/message.scm (location-string): Support locations
passed as a file/line/column vector.
Fixes <https://bugs.gnu.org/49223>.
Reported by Domagoj Stolfa <ds815@gmx.com>.
Backport of Guix commit b36267b1d96ac344d2b42c9822ce04b4c3117f85.
* guix/build/download.scm (tls-wrap): Retry up to 5 times when
'handshake' throws a non-fatal error.
The custom input/output port wrapping the TLS session record port would
introduce overhead, and it would also prevent its uses in a non-blocking
context--e.g., with Fibers. The port close mechanism added in GnuTLS
3.7.7 allows us to get rid of that wrapper.
Backported from Guix commit dd573ceea73295c7a872088ecd91e5f0fd74bf2b.
* web/client.scm (wrap-record-port-for-gnutls<3.7.7): New procedure,
with code formerly in 'tls-wrap'.
(tls-wrap): Check for 'set-session-record-port-close!' and use it when
available; otherwise call 'wrap-record-port-for-gnutls<3.7.7'.
This port is of limited use if it cannot be used reliably. Rather than
behaving as if the input has finished when it ends unexpectedly, instead
raise an exception.
* module/web/http.scm (make-chunked-input-port): Raise an exception on
premature termination.
(&chunked-input-ended-prematurely): New exception type.
(chunked-input-ended-prematurely-error?): New procedure.
* test-suite/tests/web-http.test (pass-if-named-exception): Rename to
pass-if-named-exception.
(pass-if-named-exception): New syntax.
("Exception on premature chunk end"): New test for this behaviour.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
