Fixes the mutually-recursive toplevel definitions case. This could be
fixed by rewriting bodies as letrecs, as r6 does, but that's not really
repl-compatible.
* module/system/il/ghil.scm (ghil-lookup): Ok, if we can't locate a
variable, mark it as unresolved.
* module/system/il/compile.scm (make-glil-var): Compile unresolved
variables as <glil-late-bound> objects.
* module/system/il/glil.scm: Add <glil-late-bound> definition.
* module/system/vm/assemble.scm (codegen): And, finally, when we see a
<vlate-bound> object, allocate a slot for it in the object vector,
setting it to a symbol. Add a new pair of instructions to resolve that
symbol to a variable at the last minute.
* src/vm_loader.c (load-number): Bugfix: the radix argument should be
SCM_UNDEFINED in order to default to 10.
(late-bind): Add an unresolved symbol to the object vector. Could be
replaced with load-symbol I guess.
* src/vm_system.c (late-variable-ref, late-variable-set): New
instructions to do late symbol binding.
* testsuite/Makefile.am (vm_test_files):
* testsuite/t-mutual-toplevel-defines.scm: New test, failing for some
reason involving the core even? and odd? definitions.
* module/system/base/compile.scm: Export cenv? also.
* module/system/base/syntax.scm: Clean up vestiges of the old structure
code. Make accessors defined as foo? instead of <foo>?.
* module/system/il/glil.scm:
* module/system/il/ghil.scm: Remove <foo>-1 accessors, since we have
named accessors.
* module/system/base/syntax.scm (define-record): Define the accessors as
procedures-with-setters, not just as getters.
* module/system/il/compile.scm (optimize): This function was bitrotten
since the addition of source locations in
cb4cca12e7. Untested attempts to
de-bitrot it. Dedottify as well.
* module/system/il/ghil.scm:
* module/system/il/glil.scm (unparse):
* module/system/vm/debug.scm (debugger-repl): Ongoing dedottification.
* module/system/base/syntax.scm (define-record): Define named accessors,
to prepare the code for srfi-9 records switchover.
* module/system/il/ghil.scm:
* module/system/il/glil.scm: Export a bunch of named accessors.
* module/system/base/syntax.scm (record-case): Capture the match macro.
* module/system/il/glil.scm:
* module/system/il/compile.scm: Convert to record-case.
* module/system/base/syntax.scm (define-record): Rework to separate the
type and its constructor. Now (define-record (<foo> bar)) will create
`make-foo' as the constructor, not `<foo>'. Also the constructor now
takes either keyword or positional arguments, so that it can be used as
the implementation of variant types as well.
(|): Map directly to define-record instead of rolling our own thing.
* module/language/scheme/translate.scm:
* module/system/base/language.scm:
* module/system/il/compile.scm:
* module/system/il/ghil.scm:
* module/system/il/glil.scm:
* module/system/repl/common.scm:
* module/system/vm/assemble.scm:
* module/system/vm/debug.scm: Change instances of record creation to use
the make-foo procedures instead of <foo>. Adjust module exports as
necessary.
