* module/language/lua/compile-tree-il.scm (compile): Add clause for
ast-variable-arguments.
* module/language/lua/parser.scm (define-ast, make-parser): Add
vararg-gensym field to functions, gensym field to variable-arguments.
Propagate *vararg-gensym* from functions to variable-arguments.
* test-suite/tests/lua-eval-2.test ("lua-eval"): Check for #nil
values resulting from a function call as the last argument.
doc/ref/api-languages.texi: Add a small blurb about Lua.
module/language/lua/compile-tree-il.scm: Function calls now properly
handle multiple values resulting from a function call as the last
argument.
* module/language/lua/lexer.scm: Some tweaks and reindentations. Remove
the define/init lexer interface; I don't like separating declaration
and initialization.
* module/language/lua/parser.scm:
* test-suite/tests/lua-lexer.test: Adapt to lexer interface change.
* module/language/lua/runtime.scm (true?, false?): Remove, now that #nil
is false.
* module/language/lua/compile-tree-il.scm: Don't emit calls to true? or
false?.
* module/language/lua/common.scm: Remove `or-eqv?'. Make a bit more
idiomatic.
* module/language/lua/compile-tree-il.scm:
* module/language/lua/lexer.scm:
* module/language/lua/parser.scm:
* module/language/lua/runtime.scm: Replace or-eqv? instances with memq
or memv.
What is missing:
+ Functions: module, getfenv, setfenv, math.modf, table.sort
+ Parser: needs to be more flexible
+ Compiler: needs more extensive work to properly handle all possible
cases of variable arguments, multiple returns, and loops
+ Language: Variable arguments and unpacking of multiple returns. (For
example we need to be able to handle something as complex as
print(unpack({...})), which is easy with Lua's explicit stack but will
require lots of tree-il gymnastics, or perhaps modifications to better
allow different calling conventions. (For instance -- how would we
support Python or Ruby, where keyword arguments are gathered into a
hashtable and passed as a single argument?)
What is there:
A fair shot at supporting Lua 5.1, not quite a drop-in replacement, but
not far from that goal either.
* module/language/tree-il/compile-cps.scm: New module implementing CPS
conversion of Tree-IL.
* module/Makefile.am:
* module/language/tree-il/spec.scm:
* module/language/cps/spec.scm: Integrate CPS in the build and language
system.
* module/scripts/disassemble.scm (disassemble): Update to work with
RTl (and only RTL, as that's the future).
* module/system/vm/debug.scm (for-each-elf-symbol): New public
interface.
(debug-context-from-image): New helper.
(find-debug-context): Use the helper.
* module/system/vm/disassembler.scm (disassemble-image): New public
interface.
* module/system/vm/assembler.scm (link-data): Give stringbufs the
"shared" flag already, so we don't attempt to set it at runtime. Give
.data sections the SHF_WRITE flag.
* module/system/base/compile.scm (compile-file): Pass #:to-disk? as an
option to indicate that the result will be being loaded from disk.
Perhaps a linker might want to page-align in that case.
* module/language/elisp/compile-tree-il.scm (process-options!): Accept
and ignore the #:to-file compiler option.
* module/language/tree-il/primitives.scm (maybe-simplify-to-eq): Wrap
within another lambda, binding the primitive name. If there are less
than two arguments, expand to constant #t. If there are more than two
arguments, convert into a conjunction of binary applications.
(expand-chained-comparisons): New procedure.
(*primitive-expand-table*): Add entries for (< <= = >= > eq?).
* module/ice-9/curried-definitions.scm (cdefine, cdefine*): Simplify,
and improve error reporting by making the patterns more strict.
(define-public): Fix bug in generated 'export' form.
* module/ice-9/boot-9.scm (module-add!): Check that the symbol argument
is actually a symbol.
(define-public): Expand into 'define' in such a way that curried
definitions will immediately fail.
* module/Makefile.am: match.go depends on match.upstream.scm.
* module/ice-9/match.scm (error): Accept any number of arguments.
* module/ice-9/match.upstream.scm (match-next): Call 'error' in non-tail
context, and include the value that failed to match in the call.
* module/language/tree-il/primitives.scm (define-primitive-expander):
Use 'match-lambda*' instead of 'case-lambda' for pattern matching.
(*primitive-expand-table*): In primitive expanders for '+', '*', '-',
'/', 'logior', and 'logand', assume conventional left-to-right
associativity.
* libguile/instructions.c (FOR_EACH_INSTRUCTION_WORD_TYPE): Allow for
five-word instructions, and for new instruction word types.
* libguile/vm-engine.c (RETURN_ONE_VALUE): Instead of returning the
value in the fixed part of the call frame, return it in the same place
multiple-value returns go: from slot 1.
(BR_ARITHMETIC): Allow arithmetic tests to be negated.
(rtl_vm_engine): Change calling convention to use the same location
for single and multiple-value returns. Renumber all instructions.
(halt, halt/values): Fold into a single instruction (halt).
(call): Take the location of the procedure instead of the location of
the call frame. Also take the number of args, and reset the sp before
jumping to the procedure, so as to indicate the number of arguments.
(call/values): Remove, as the new calling convention has RA == MVRA.
(tail-call): Require the procedure to be shuffled down already, and
take "nlocals" as an arg instead of "nargs".
(receive, receive-values): New instructions, for receiving returned
values from calls.
(return-values): Rename from return/values. Remove "values".
(alloc-frame): Rename from reserve-locals.
(reset-frame): New instruction.
(drop-locals): Remove.
(br-if-=, br-if-<, br-if-<=): Allow these instructions to be
negatable.
(br-if->, br-if->=): Remove. Probably a bad idea, given NaN.
(box-ref): Don't bother trying to do a reverse lookup -- the
toplevel-box, module-box, and resolve instructions should handle
that.
(resolve): Add arg to check that the variable is bound.
(toplevel-box, module-box): New instructions, replacing toplevel-ref,
toplevel-set, module-ref, and module-set.
* libguile/vm.c (rtl_boot_continuation_code, rtl_values_code): Adapt to
instruction set changes.
* module/Makefile.am: Make the assembler and disassembler dependent on
vm-operations.h.
* module/system/vm/assembler.scm:
* module/system/vm/disassembler.scm: Adapt to instruction changes and
new instruction word kinds.
* test-suite/tests/rtl.test: Adapt to instruction set changes.
* module/language/tree-il/peval.scm (peval): Remove abort optimization;
the CPS compiler will do much better here, and it is complicating
things in the meantime.
* libguile/numbers.c (scm_numerator, scm_denominator): Handle signed
zeroes and infinities in accordance with the corresponding R6RS flonum
procedures.
* module/rnrs/arithmetic/flonums.scm (flnumerator, fldenominator):
Remove special handling of infinities.
* test-suite/tests/numbers.test (numerator, denominator): Add tests.
Convert existing tests to use 'pass-if-equal'.
* test-suite/tests/r6rs-arithmetic-flonums.test (flnumerator): Fix
broken test of (flnumerator -0.0).
* module/language/scheme/decompile-tree-il.scm (choose-output-names):
A <lambda> with no <lambda-case> decompiles into a 'case-lambda'
primitive. Ensure that 'case-lambda' is not shadowed by a lexical.
* module/language/ecmascript/compile-tree-il.scm (with-return-prompt):
Adapt to the changes in 178a40928a.
Prompt tree-il nodes now contain an explicit 'escape-only?' flag, and
the body and handler are now both lambdas.
* libguile/strports.c (scm_mkstrport): Use UTF-8; ignore
%default-port-encoding. Rename 'str_len' and 'c_pos' to
'num_bytes' and 'c_byte_pos'. Interpret 'pos' argument
as a character index instead of a byte index.
* module/ice-9/boot-9.scm (%cond-expand-features): Add srfi-6 to the
list of core features.
* module/srfi/srfi-6.scm (open-input-string, open-output-string): Simply
re-export these, since the core versions are now compliant.
* doc/ref/api-io.texi (String Ports): Remove text that describes
non-compliant behavior of string ports with regard to encoding.
* doc/ref/srfi-modules.texi (SRFI-0): Add srfi-6 to the list of
core features.
(SRFI-6): Remove text that mentions non-compliant behavior of
core string ports.
* module/ice-9/format.scm (format):
* module/ice-9/pretty-print.scm (truncated-print):
* module/rnrs/io/ports.scm (open-string-input-port,
open-string-output-port):
* test-suite/test-suite/lib.scm (format-test-name):
* test-suite/tests/chars.test ("combining accent is pretty-printed",
"combining X is pretty-printed"):
* test-suite/tests/ecmascript.test (eread, eread/1):
* test-suite/tests/rdelim.test:
* test-suite/tests/reader.test (read-string):
* test-suite/tests/regexp.test:
* test-suite/tests/srfi-105.test (read-string): Don't set
%default-port-encoding before creating string ports.
* benchmark-suite/benchmarks/ports.bm (%latin1-port): Use
'set-port-encoding!' to set the string port encoding.
(%utf8/ascii-port, %utf8/wide-port, "rdelim"): Don't set
%default-port-encoding before creating string ports.
* test-suite/tests/r6rs-ports.test ("lookahead-u8 non-ASCII"): Don't set
%default-port-encoding before creating string ports.
("put-bytevector with UTF-16 string port", "put-bytevector with
wrong-encoding string port"): Use 'set-port-encoding!' to set the
string port encoding.
* test-suite/tests/print.test (tprint): Use 'set-port-encoding!' to set
the string port encoding.
("truncated-print"): Use 'pass-if-equal'.
* test-suite/tests/ports.test ("encoding failure leads to exception",
"%default-port-encoding is honored", "peek-char [latin-1]", "peek-char
[utf-8]", "peek-char [utf-16]"): Remove tests.
("%default-port-encoding is ignored", "peek-char"): Add tests.
("suitable encoding [latin-1]", "suitable encoding [latin-3]",
"wrong encoding, error", "wrong encoding, substitute",
"wrong encoding, escape"): Use 'set-port-encoding!' to set the
string port encoding.
("%default-port-encoding, wrong encoding"): Rewrite to use
a file port instead of a string port.
