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5752 commits

Author SHA1 Message Date
Michael Gran
90305ce9e4 Use symbol accessors in scm_gc_mark_dependencies
* libguile/gc-mark.c (scm_gc_mark_dependencies): don't unpack symbols.
  Use symbol accessors.
2009-08-20 22:41:12 -07:00
Michael Gran
832bbc95a2 Use string accessors in scm_basename and scm_dirname
* libguile/filesys.c (basename, dirname): don't unpack strings.
  Use string accessor functions.
2009-08-20 22:40:15 -07:00
Michael Gran
43d5626ce7 Avoid type-limits warning in SCM_TO_TYPE_PROTO
* libguile/conv-uinteger.i.c (SCM_TO_TYPE_PROTO): avoid a comparison
  that is always true due to the limited range of the data type
2009-08-20 21:40:03 -07:00
Michael Gran
68a30f5730 Type-limits error in GC environment initialization
* libguile/gc-malloc.c (scm_gc_init_malloc): GUILE_INIT_MALLOC_LIMIT
  is cast to unsigned then tested as if it were still signed
2009-08-20 21:40:00 -07:00
Michael Gran
0193377d24 Avoid accessing symbol internals in call_dsubr_1 and DEVAL
The symbol's characters are only accessed in case they are needed
for an error message.  This can be avoided by passing the symbol
all the way to a error message function.

* libguile/__scm.h (SCM_WTA_DISPATCH_1_SUBR): new macro

* libguile/error.c (scm_i_wrong_type_arg_symbol): new error function

* libguile/error.h: declaration of scm_i_wrong_type_arg_symbol

* libguile/eval.c (call_dsubr_1): use new macro SCM_WTA_DISPATCH_1_SUBR
  to avoid having to unpack the symbol's chars

* libguile/eval.i.c: use new macro SCM_WTA_DISPATCH_1_SUBR
2009-08-20 21:39:56 -07:00
Michael Gran
7f5946427e Use string and symbol accessors with obarrays and keyword-dash-symbols
* libguile/deprecated.c (intern_obarray_soft): new function
  (scm_intern_obarray_soft, scm_string_to_obarray_symbol): use
  intern_obarray_soft
  (scm_gentemp): don't unpack string chars, use intern_obarray_soft

* libguile/discouraged.c (scm_make_keyword_from_dash_symbol): use
  symbol accessor
2009-08-20 21:39:44 -07:00
Andy Wingo
2fb924f64f programs have their own tc7 now
* libguile/tags.h (scm_tc7_program):
* libguile/programs.h: Programs now have their own tc7 code. Fix up the
  macros appropriately.

* libguile/programs.c: Remove smobby bits, leaving marking, printing,
  and application for other parts of Guile.

* libguile/debug.c (scm_procedure_source):
* libguile/eval.c (scm_trampoline_0, scm_trampoline_1)
  (scm_trampoline_2): Add cases for tc7_program.
* libguile/eval.i.c (CEVAL, SCM_APPLY):
* libguile/evalext.c (scm_self_evaluating_p):
* libguile/gc-card.c (scm_i_sweep_card, scm_i_tag_name):
* libguile/gc-mark.c (1):
* libguile/print.c (iprin1):
* libguile/procs.c (scm_procedure_p, scm_thunk_p)
* libguile/vm-i-system.c (make-closure): Adapt to new procedure
  representation.

* libguile/procprop.c (scm_i_procedure_arity): Do the right thing for
  programs.
* test-suite/tests/procprop.test ("procedure-arity"): Arity test now
  succeeds.

* libguile/goops.c (scm_class_of): Programs now belong to the class
  <procedure>, not a smob class.

* libguile/vm.h (struct vm, struct vm_cont):
* libguile/vm-engine.c (vm_engine):
* libguile/frames.h (SCM_FRAME_BYTE_CAST, struct vm_frame):
* libguile/frames.c (scm_c_make_vm_frame): Fix usages of scm_byte_t,
  changing them to scm_t_uint8.
2009-08-20 18:52:51 +02:00
Andy Wingo
7ea9a0a764 better VM error messages
* libguile/vm-engine.c: Attempt to make error messages more friendly
  and uniform with historical expectation.
2009-08-20 18:52:50 +02:00
Andy Wingo
b7946e9ec6 push new frame on stack before procedure & args
* libguile/_scm.h (SCM_OBJCODE_MINOR_VERSION): Bump

* libguile/vm-engine.c (vm_engine): Push a frame corresponding to the
  mv-call.

* libguile/vm-i-system.c: Renumber ops.
  (new-frame): New op, pushes a frame.
  (call, mv-call): No need to shuffle args, though we do need to pop the
  frame in the non-vm call case.
  (goto/args): Inconsequential tweaks.
  (call/cc): Push a frame if needed.

* module/language/tree-il/compile-glil.scm (flatten): Emit `new-frame'
  as appropriate.

* test-suite/tests/tree-il.test: Fix to expect new-frame.
2009-08-20 18:52:50 +02:00
Andy Wingo
03e6c16596 reorder frame layout
* libguile/frames.h: Reorder the frame layout so the return address
  comes below the arguments.working
  (SCM_FRAME_SET_RETURN_ADDRESS, SCM_FRAME_SET_MV_RETURN_ADDRESS): New
  macros.

* libguile/frames.c (scm_vm_frame_arguments): Use the macros to access
  the arguments.

* libguile/vm-engine.c (vm_engine): Fix for new calling convention.

* libguile/vm-engine.h (INIT_FRAME): New macro. Does part of what
  NEW_FRAME used to do.

* libguile/vm-i-system.c (call, mv-call): Shuffle args up to make room
  for the stack, and adapt to new calling convention.
  (goto/args): Shuffling down is easier now.
  (return, return/args): Adapt to new frame layout.

* libguile/vm.c (vm_mark_stack): Adapt to new frame layout, and the
  possibility of there being crap on the stack.
  (really_make_boot_program): Remove extraneous comment.
2009-08-20 18:52:49 +02:00
Andy Wingo
d94be25f72 remove dead weight from vm-i-system.c
* libguile/vm-i-system.c: Remove mark, list-mark, cons-mark,
  vector-mark, and list-break, as they are no longer used.
  (call, goto/args, mv-call): Remove bits about trampolines, which was
  slower, and VM continuations, which are not used (we use Guile's
  continuations as the applicable objects).

  Renumber ops.

* libguile/_scm.h (SCM_OBJCODE_MINOR_VERSION): Bump.
2009-08-20 18:52:49 +02:00
Andy Wingo
48a0fe4d6b autocompiled files before installation go to a cache dir in the builddir
* libguile/load.c (scm_init_load_path): Append a slash after
  XDG_CACHE_HOME.

* meta/gdb-uninstalled-guile.in:
* meta/guile.in (XDG_CACHE_HOME): Export this var so we write to a cache
  within the build directory. Probably we should have a GUILE_CACHE_DIR
  to be more specific, though.

* Makefile.am (clean-local): Clear the cache when making clean.
2009-08-20 18:52:38 +02:00
Michael Gran
53a468dd8c type limits error in string-tabulate
* libguile/srfi-13.c (scm_string_tabulate): test range of signed integer
  before casting it to unsigned size_t
2009-08-20 08:14:28 -07:00
Michael Gran
f846bd1a8f Update srfi-13 functions for Unicode
* libguile/srfi-13.c (MY_SUBF_VALIDATE_SUBSTRING_SPEC): new macro
  (MY_VALIDATE_SUBSTRING_SPEC_COPY): now unused, removed
  (MY_VALIDATE_SUBSTRING_SPEC_UCOPY): now unused, removed
  (REF_IN_CHARSET): new macro
  (race_error)[0]: unused, removed
  (scm_string_any, scm_string_every, scm_string_tabulate)
  (scm_substring_to_list, scm_reverse_string_to_list)
  (scm_reverse_list_to_string, scm_string_join)
  (s_scm_srfi13_substring_copy, scm_string_copy, scm_string_copy_x)
  (scm_string_pad, scm_string_pad_right, scm_string_trim)
  (scm_string_trim_right, scm_string_trim_both, scm_substring_fill_x):
  (scm_string_compare, scm_string_compare_ci): modified for
  both wide and narrow strings
  (compare_string): new function
  (scm_string_eq, scm_string_neq, scm_string_lt, scm_string_gt)
  (scm_string_le, scm_string_ge, scm_string_ci_eq, scm_string_ci_neq)
  (scm_string_ci_lt, scm-string_ci_gt, scm_string_ci_le, scm_string_ci_gt)
  (scm_substring_hash, scm_string_prefix_length, scm_string_suffix_length)
  (scm_string_prefix_length_ci, scm_string_suffix_length_ci)
  (scm_string_prefix_p, scm_string_prefix_ci_p, scm_string_suffix_p)
  (scm_string_suffix_ci_p, scm_string_index, scm_string_index_right)
  (scm_string_skip, scm_string_skip_right, scm_string_count)
  (scm_string_contains, scm_string_contains_ci, string_upcase_x)
  (scm_substring_upcase_x, scm_substring_upcase, string_downcase_x)
  (scm_string_downcase_x, scm_string_downcase, scm_string_titlecase_x)
  (scm_string_titlecase, scm_string_capitalize, scm_string_reverse)
  (scm_string_reverse_x, scm_string_map, scm_string_map_x)
  (scm_string_fold, scm_string_fold_right, scm_string_unfold)
  (scm_string_unfold_right, scm_xsubstring, scm_string_xcopy_x)
  (scm_string_replace, scm_string_tokenize, scm_string_split)
  (scm_string_filter, scm_string_delete): modified for both wide and
  narrow strings
2009-08-19 23:21:39 -07:00
Michael Gran
06b961904d Avoid possible mutex hang on error message output
Avoid possible mutex hang when scm_lfwrite_substr is used in error
message output and when an error has caused the stringbuf write
mutex to not be unlocked.  scm_lfwrite_substr makes a substring:
making a substring requires that mutex.

Hopefully, all cases of non-local jumps when the stringbuf write
lock is held have been eliminated anyway, making this O.B.E.

* libguile/ports.c (scm_lfwrite_str): include functionality in this
  function instead of making this a special case of scm_lfwrite_substr
2009-08-19 22:15:41 -07:00
Michael Gran
9aa27c1a30 Try to optimize scm_string for speed
* libguile/strings.c (scm_string): optimize for speed
2009-08-19 22:15:32 -07:00
Michael Gran
f8ba2bb911 Rename string-width to string-bytes-per-char
* libguile/strings.h: rename scm_string_width to scm_string_bytes_per_char

* libguile/strings.c (scm_string_width): renamed to scm_string_bytes_per_char
  (scm_string_bytes_per_char): renamed from scm_string_width

* module/language/assembly/compile-bytecode.scm (write-bytecode): string-width
  -> string-bytes-per-char

* module/language/glil/compile-assembly.scm (dump-object): string-width
  -> string-bytes-per-char
2009-08-19 22:15:22 -07:00
Michael Gran
1c7b216f84 Misleading error message text in scm_i_string_writable_wide_chars
* libguile/strings.c (scm_i_string_writable_wide_chars): change error text
2009-08-19 22:15:16 -07:00
Andy Wingo
2a0db0e326 procedure-documentation works on vm procedures
* libguile/procs.c (scm_procedure_documentation): Add a hack so that
  this function works for compiled procedures too.
2009-08-19 12:20:58 +02:00
Michael Gran
6234ff203d Display wide strings using escapes
* libguile/print.c (iprin1): for now, display wide strings
  as escaped strings
2009-08-18 22:32:08 -07:00
Michael Gran
f59cf9981a Avoid double-casts of stringbuf
Conversion from char to scm_t_wchar require an intermediate cast to
unsigned char.  By changing the return type of SCM_STRINGBUF_INLINE_CHARS
to unsigned char *, doublecasts in the code can be avoided.  Also,
some clarification of return types.

* libguile/strings.c (STRINGBUF_OUTLINE_CHARS)
(STRINGBUF_INLINE_CHARS): now returns unsigned char *; all callers changed.
2009-08-18 21:14:56 -07:00
Michael Gran
8ef6962953 Avoid compilation warnings in SCM_MAKE_CHAR
* libguile/chars.h (SCM_MAKE_CHAR): change inequality
2009-08-18 21:13:38 -07:00
Andy Wingo
9591a2b016 `load' autocompiles
* libguile/load.h:
* libguile/load.c (scm_sys_warn_autocompilation_enabled): New primitive,
  not exported. Since `load' autocompiles now, it should warn in the
  same way that the bits hardcoded into C warn.
  (scm_try_autocompile): Use scm_sys_warn_autocompilation_enabled.

* module/ice-9/boot-9.scm (autocompiled-file-name): New helper.
  (load): Try autocompiling the argument, if appropriate. Will
  autocompile files passed on Guile's command line. `primitive-load' is
  unaffected.
2009-08-18 11:06:04 +02:00
Ludovic Courtès
e3c9c676ae Uncomment run-time objcode alignment check.
This should now work thanks to the changes in
28b119ee3d ("make sure all programs are
8-byte aligned").  This commit is a follow-up to
ec99fe8ecb ("Add FIXMEs about misaligned
objcode-metas.").

* libguile/objcodes.c (scm_c_make_objcode_slice): Uncomment assertion
  that checks for proper alignment of PTR.

* module/language/assembly/compile-bytecode.scm (write-bytecode): Update
  comment about META's alignment.
2009-08-13 23:59:51 +02:00
Ludovic Courtès
b3ce13b667 Remove deprecated semi-public memoizers.
* libguile/eval.c (scm_m_expand_body, scm_macroexp, scm_unmemocar):
  Remove.
  (scm_m_undefine): Make `static'.

* libguile/eval.h (scm_m_undefine, scm_m_expand_body, scm_unmemocar,
  scm_macroexp): Remove declarations.
2009-08-13 23:36:46 +02:00
Ludovic Courtès
4d0949ea45 Make the evaluator's memoizers private.
* libguile/eval.c (macroexp): Move upwards.
  (scm_m_quote, scm_m_begin, scm_m_if, scm_m_set_x, scm_m_and, scm_m_or,
  scm_m_case, scm_m_cond, scm_m_lambda, scm_m_letstar, scm_m_do,
  scm_m_quasiquote, scm_m_delay, scm_m_generalized_set_x,
  scm_m_define, scm_m_letrec, scm_m_let, scm_m_at, scm_m_atat,
  scm_m_apply, scm_m_cont, scm_m_nil_cond, scm_m_atfop,
  scm_m_atbind, scm_m_atslot_ref, scm_m_atslot_set_x,
  scm_m_at_call_with_values, scm_m_eval_when): New static
  declarations; definitions made static.
  (s_atslot_ref, s_atslot_set_x): New, from `goops.c'.

* libguile/eval.h (scm_m_quote, scm_m_begin, scm_m_if, scm_m_set_x,
  scm_m_vref, scm_m_vset, scm_m_and, scm_m_or, scm_m_case, scm_m_cond,
  scm_m_lambda, scm_m_letstar, scm_m_do, scm_m_quasiquote, scm_m_delay,
  scm_m_generalized_set_x, scm_m_future, scm_m_define, scm_m_letrec,
  scm_m_let, scm_m_at, scm_m_atat, scm_m_apply, scm_m_cont,
  scm_m_nil_cond, scm_m_atfop, scm_m_atbind, scm_m_atslot_ref,
  scm_m_atslot_set_x, scm_m_atdispatch, scm_m_at_call_with_values,
  scm_m_eval_when): Remove public declarations.

* libguile/goops.c (s_atslot_ref, s_atslot_set_x): Remove.
2009-08-13 23:30:49 +02:00
Andy Wingo
aaae0d5ab3 "fix" <let>-bound lambda expressions too
* module/language/tree-il/compile-glil.scm (compile-glil): Compute
  warnings before optimizing, as unreferenced variables will be
  optimized out.

* libguile/_scm.h: Fix C99 comment.

* module/language/tree-il/fix-letrec.scm (partition-vars): Also analyze
  let-bound vars.
  (fix-letrec!): Fix a bug whereby a set! to an unreffed var would be
  called for value, not effect. Also "fix" <let>-bound lambda
  expressions -- really speeds up pmatch.

* test-suite/tests/tree-il.test ("lexical sets", "the or hack"): Update
  to take into account the new optimizations.
2009-08-12 21:29:08 +02:00
Michael Gran
eca29b0202 Don't include libunistring headers in Guile public headers
This requres the creation of a new type
scm_t_string_failed_conversion_handler to replace libunistring's
enum iconveh_ilseq_handler.

* libguile/strings.h: don't include <uniconv.h>
(scm_t_string_failed_conversion_handler): new enum type
(SCM_FAILED_CONVERSION_ERROR, SCM_FAILED_CONVERSION_QUESTION_MARK):
(SCM_FAILED_CONVERSION_ESCAPE_SEQUENCE): new enum type values

* libguile/strings.c (scm_to_stringn): now takes type
scm_t_string_failed_conversion_handler.  All callers changed.

* libguile/print.c: include <uniconv.h>

* libguile/ports.c (scm_lfwrite_substr): use
scm_t_string_conversion_handler's constants

* libguile/gen-scmconfig.c (SCM_ICONVEH_ERROR):
(SCM_ICONVEH_QUESTION_MARK, SCM_ICONVEH_ESCAPE_SEQUENCE): store
iconveh_ilseq_hander constants as #define's
2009-08-12 09:21:55 -07:00
Michael Gran
3c7cf7f5c0 Regression, scm_string fails to test for circular lists
* libguile/string.c (scm_string): Restores the functionality
  where scm_string tests for circular lists

* test-suite/tests/strings.test: add test for circular lists
2009-08-12 09:21:37 -07:00
Michael Gran
bd4911efd2 Some signed/unsigned comparison and conversions
* libguile/ports.c (scm_lfwrite_str, scm_lfwrite_substr): signed/unsigned
  conversion and comparison

* libguile/strings.c (scm_string_append): signed/unsigned comparison
2009-08-12 08:50:45 -07:00
Andy Wingo
94ff26b96b rework the vm support for wide strings
* libguile/_scm.h (SCM_OBJCODE_MINOR_VERSION): Bump.

* libguile/vm-engine.c (vm_error_bad_wide_string_length): New error
  case.

* libguile/vm-i-loader.c (load-unsigned-integer, load-integer)
  (load-keyword): Remove these instructions. The former two are
  obsoleted by make-int64/make-uint64, the latter via make-keyword.
  (load-string): Only handle narrow strings.
  (load-symbol): Only handle narrow symbols. The wide case is handled
  via make-symbol.
  (load-wide-string): New instruction, for wide strings.

* libguile/vm-i-system.c (define): Move here from loaders.c, as now it
  just takes a sym on the stack.
  (make-keyword, make-symbol): New instructions.

* module/language/assembly.scm: Remove removed instructions. No more
  width byte in load-string etc.

* module/language/assembly/compile-bytecode.scm (write-bytecode): Adapt
  to change in instruction set.

* module/language/glil/compile-assembly.scm (glil->assembly): Compile
  define by pushing the sym then emitting (define).
  (dump-object): Dump narrow and wide strings differently. Use
  make-keyword and make-symbol as appropriate.

* module/language/tree-il/compile-glil.scm (flatten): When compiling a
  ref to a primitive (not a call), first see if the primitive is
  actually bound in the root module. (That's not the case with e.g.
  bytevector-u8-ref).

* module/system/xref.scm (program-callee-rev-vars): Don't parse out
  "nexts".

* test-suite/tests/asm-to-bytecode.test ("compiler"): Adapt to bytecode
  format change.
2009-08-12 16:34:05 +02:00
Michael Gran
744c8724a7 Quiet signed/unsigned comparison warnings in chars.[ch]
* libguile/chars.h (SCM_MAKE_CHAR): quiet signed/unsigned
  comparison warnings

* libguile/chars.c (scm_i_charname):
  (scm_i_charname_to_char): quiet signed/unsigned comparison
  warnings
2009-08-11 22:56:18 -07:00
Michael Gran
9909c3956a Avoid unitialized and unused warnings in scm_string_append
* libguile/strings.c (scm_string_append): avoid warnings
2009-08-11 22:12:22 -07:00
Michael Gran
4cd00cc6b2 Revert to locale-dependent toupper and tolower
To avoid leaving Guile in a broken state, the conversion
from locale-dependent case modification to Unicode case modification
should be an atomic commit

* libguile/chars.c (scm_c_upcase): revert to locale-dependent
  toupper and tolower
2009-08-11 21:27:20 -07:00
Michael Gran
30a6b9caa9 Only pass ints to tolower and toupper
* libguile/strings.c (unistring_escapes_to_guile_escapes): cast
  tolower's parameter to int

* libguile/read.c (CHAR_DOWNCASE): cast tolower's parameter to int
2009-08-11 21:12:52 -07:00
Andy Wingo
6e5c02b8a3 make the fallback path look less like line noise
* libguile/_scm.h:
* libguile/load.c: Rework to only include the relevant pieces in the
  fallback path.
2009-08-11 21:16:05 +02:00
Andy Wingo
86cfb42d56 include objcode cookie in the fallback path
* libguile/_scm.h (SCM_OBJCODE_COOKIE): Move the objcode cookie define
  here, so that load.c can use it. This is a private header.

* libguile/load.c (FALLBACK_DIR): Include the objcode cookie in the
  fallback path. Should fix problems when objcode changes incompatibly
  during the 1.9 series.

* libguile/objcodes.c: Adapt to SCM_OBJCODE_COOKIE move.

This should fix http://article.gmane.org/gmane.lisp.guile.devel/9059.
2009-08-11 20:25:44 +02:00
Michael Gran
88ed5759cd Fix %string-dump and %symbol-dump fields
* libguile/strings.c (scm_sys_string_dump): don't print
        stringbuf. Print read-only status.
        (scm_sys_symbol_dump): don't print stringbuf.  Print interned
        status.
2009-08-10 23:05:38 -07:00
Ludovic Courtès
dab1ed3767 Change `defined?' to accept a module as its second argument.
Reported by Daniel Kraft <d@domob.eu>.

* doc/ref/api-binding.texi (Binding Reflection): Update documentation of
  `defined?'.

* libguile/evalext.c (scm_defined_p): Expect a module as the second
  argument, not a lexical environment.
2009-08-10 19:24:34 +02:00
Michael Gran
32be5735cd Make scm_charprint and scm_i_string_wide_chars SCM_INTERNAL.
Also, scm_charprint is renamed to scm_i_charprint.

        * libguile/strings.h: make scm_i_string_wide_chars internal.

        * libguile/print.h: rename scm_charprint to scm_i_charprint.  Make
        internal.

        * libguile/print.c (scm_i_charprint): renamed from scm_charprint
        (scm_charprint): renamed to scm_i_charprint. All callers changed.
2009-08-10 05:51:05 -07:00
Michael Gran
6ce6923b68 Improve %string-dump and %symbol-dump
%string-dump and %symbol-dump are modified to return assocation lists
of string and symbol attributes instead of printing to stderr.  They
are no longer conditional on SCM_DEBUG.

        * libguile/strings.c (scm_sys_string_dump)
        (scm_sys_symbol_dump): now returns alist of properties.  No longer
        require that SCM_DEBUG be defined.
        (scm_sys_stringbuf_hist): now conditional on
        SCM_STRING_LENGTH_HISTOGRAM

        * libguile/strings.h: scm_sys_string_dump and scm_sys_symbol dump
        are now declared as API
2009-08-10 00:09:33 -07:00
Michael Gran
50b1996f1b More comments for string functions
* libguile/strings.c: comments
2009-08-09 18:06:59 -07:00
Michael Gran
4847dc172f Missing parentheses in SCM_MAKE_CHAR macro
* libguile/chars.h (SCM_MAKE_CHAR): missing parentheses
2009-08-09 16:58:14 -07:00
Michael Gran
b07992900b Port position macros shouldn't require enclosing braces
The port position macros incorrectly required enclosing braces
when used within if statements.

        * libguile/ports.h (SCM_INCLINE, SCM_ZEROCOL, SCM_INCCOL)
        (SCM_DECCOL, SCM_TABCOL): enclose macro in do/while

        * libguile/ports.c (update_port_lf): remove extra braces
2009-08-09 16:58:14 -07:00
Ludovic Courtès
9af080f720 Use a linker version script for libguile.
* libguile/Makefile.am (libguile_la_LDFLAGS)[HAVE_LD_VERSION_SCRIPT]:
  Use `libguile.map'.
  (EXTRA_DIST): Add `libguile.map'.

* libguile/libguile.map: New file.
2009-08-09 23:40:11 +02:00
Michael Gran
aa131e9e67 Merge commit 'origin/master' 2009-08-08 02:35:08 -07:00
Michael Gran
9c44cd4559 Add Unicode strings and symbols
This adds full Unicode strings as a datatype, and it adds some
minimal functionality.  The terminal and port encoding is assumed
to be ISO-8859-1.  Non-ISO-8859-1 characters are written or
input as string character escapes.

The string character escapes now have 3 forms: \xXX \uXXXX and
\UXXXXXX, for unprintable characters that have 2, 4 or 6 hex digits.

The process for writing to strings has been modified.  There is now a
function scm_i_string_start_writing that does the copy-on-write
conversion if necessary.

To compile strings that may be wide, the VM storage of strings and
string-likes has changed.

Most string-using functions have not yet been updated and may break
when used with wide strings.


        * module/language/assembly/compile-bytecode.scm (write-bytecode):
        use variable width string bytecode format

        * module/language/assembly.scm (byte-length): use variable width
        bytecode format

        * libguile/vm-i-loader.c (load-string, load-symbol):
        (load-keyword, define): use variable-width bytecode format

        * libguile/vm-engine.h (FETCH_WIDTH): new macro

        * libguile/strings.h: new declarations

        * libguile/strings.c (make_wide_stringbuf): new function
        (widen_stringbuf): new function
        (scm_i_make_wide_string): new function
        (scm_i_is_narrow_string): new function
        (scm_i_string_wide_chars): new function
        (scm_i_string_start_writing): new function
        (scm_i_string_ref): new function
        (scm_i_string_set_x): new function
        (scm_i_is_narrow_symbol): new function
        (scm_i_symbol_wide_chars, scm_i_symbol_ref): new function
        (scm_string_width): new function
        (unistring_escapes_to_guile_escapes): new function
        (scm_to_stringn): new function
        (scm_i_stringbuf_free): modify for wide strings
        (scm_i_substring_copy): modify for wide strings
        (scm_i_string_chars, scm_string_append): modify for wide strings
        (scm_i_make_symbol, scm_to_locale_stringn): modify for wide strings
        (scm_string_dump, scm_symbol_dump, scm_to_locale_stringbuf):
        (scm_string, scm_i_deprecated_string_chars): modify for wide strings
        (scm_from_locale_string, scm_from_locale_stringn): add null test

        * libguile/srfi-13.c: add calls for scm_i_string_start_writing for
        each call of scm_i_string_stop_writing
        (scm_string_for_each): modify for wide strings

        * libguile/socket.c: add calls for scm_i_string_start_writing for each
        call of scm_i_string_stop_writing

        * libguile/rw.c: add calls for scm_i_string_start_writing for each
        call of scm_i_string_stop_writing

        * libguile/read.c (scm_read_string): allow reading of wide strings

        * libguile/print.h: add declaration for scm_charprint

        * libguile/print.c (iprin1): print wide strings and add new string
        escapes
        (scm_charprint): new function

        * libguile/ports.h: new declarations for scm_lfwrite_substr and
        scm_lfwrite_str

        * libguile/ports.c (update_port_lf): new function
        (scm_lfwrite): use update_port_lf
        (scm_lfwrite_substr): new function
        (scm_lfwrite_str): new function

        * test-suite/tests/asm-to-bytecode.test ("compiler"): add string
        width byte to sting-like asm tests
2009-08-08 02:35:00 -07:00
Andy Wingo
9b29d60791 loop detection in the house
* libguile/vm-i-scheme.c (vector-ref, vector-set): Sync registers if we
  call out to C.

* module/language/tree-il/compile-glil.scm (flatten-lambda): Add an
  extra argument, the self-label, which should be the gensym under which
  the procedure is bound in a <fix> expression.
  (flatten): If we see a call to a lexical ref to the self-label in a
  tail position, rename and goto instead of goto/args, which will tear
  down the frame -- or will, in the future. It's a primitive form of
  loop detection.

* module/language/tree-il/primitives.scm (zero?): Expand to (= x 0).
2009-08-06 17:46:38 +02:00
Andy Wingo
c21c89b138 add <fix> tree-il construct, and compile it
* libguile/vm-i-system.c (fix-closure): New instruction, for wiring
  together fixpoint procedures.

* module/Makefile.am (TREE_IL_LANG_SOURCES): Add fix-letrec.scm.

* module/language/glil/compile-assembly.scm (glil->assembly): Reindent
  the <glil-lexical> case, and handle 'fix for locally-bound vars.

* module/language/tree-il.scm (<fix>): Add the <fix> tree-il type and
  accessors, for fixed-point bindings. This IL construct is taken from
  the Waddell paper.
  (parse-tree-il, unparse-tree-il, tree-il->scheme, tree-il-fold)
  (pre-order!, post-order!): Update for <fix>.

* module/language/tree-il/analyze.scm (analyze-lexicals): Update for
  <fix>. The difference here is that the bindings may not be assigned,
  and are not marked as such. They are not boxed.
  (report-unused-variables): Update for <fix>.

* module/language/tree-il/compile-glil.scm (flatten): Compile <fix> to
  GLIL.

* module/language/tree-il/fix-letrec.scm: A stub implementation of
  fixing letrec -- will flesh out in a separate commit.

* module/language/tree-il/inline.scm: Fix license, it was mistakenly
  added with LGPL v2.1+.

* module/language/tree-il/optimize.scm (optimize!): Run the fix-letrec!
  pass.
2009-08-05 17:52:27 +02:00
Andy Wingo
7382f23e58 add1 and sub1 instructions
* libguile/vm-i-scheme.c: Add add1 and sub1 instructions.
* module/language/tree-il/compile-glil.scm: Compile 1+ and 1- to add1
  and sub1.

* module/language/tree-il/primitives.scm (define-primitive-expander):
  Add support for `if' statements in the consequent.
  (+, -): Compile (- x 1), (+ x 1), and (+ 1 x) to 1- or 1+ as
  appropriate.
  (1-): Remove this one. Seems we forgot 1+ before, but we weren't
  compiling it nicely anyway.

* test-suite/tests/tree-il.test ("void"): Fix expected compilation of (+
  (void) 1) to allow for add1.
2009-08-05 11:55:42 +02:00