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* tests: Cygwin fixes.Kaz Kylheku2022-05-101-9/+8
| | | | | | | | | | | * tests/017/str-s.tl: Use (libc) not nil in with-dyn-lib. * tests/018/forkflush.tl: On Cygwin, produce canned output for first test case, because the real test case produces some DOS line endings that cause a mismatch. * tests/019/load-search.tl: Skip test case involving a directory with bad permissions being in the load search path.
* *load-search-dir*: Some tests.Kaz Kylheku2022-04-251-0/+33
| | | | | * tests/019/load-search.tl: Add some cases that explore the load search path.
* Add test for loading issue.Kaz Kylheku2022-03-3110-0/+55
| | | | | | | | | | | | | | | | | This test currently fails because when we execute an unsuffixed file like test/019/a, which exists, another file is executed instead, like test/019/a.txr. * tests/019/data/a, * tests/019/data/a.tl, * tests/019/data/a.tlo, * tests/019/data/a.txr * tests/019/data/b.tl * tests/019/data/b.tlo * tests/019/data/b.txr * tests/019/data/c.tl * tests/019/data/c.txr * tests/019/load-search.tl: New files.
* Test of a package-related file compilation problem.Kaz Kylheku2022-03-302-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This test currently fails. This problem was reported by Paul Patience, with a repro test case. The issue is that when compile-file is processing a (defpackage x ...) form, and the package x already exists, it fails to recognize the form as a package-manipulating form, and therefore fails to introduce a "fence" in the output so that subsequent material is placed into a new top-level object. The compiled image fo the (defun foo:fun ()) form in program.tl causes an error: the foo package does not exist. This is because the symbol foo:fun is being read as part of the same object which holds the compiled image of the defpackage form which defines the package. It's essentially the same problem as this (let () (defpackage :foo) foo:bar) The (defpackage ...) cannot execute until the entire form is read, but that form contains foo:bar which requires the foo package to exist. * tests/019/compile-package.tl: New file. * tests/019/data/program.tl: Likewise.
* load-time: new tests.Kaz Kylheku2021-10-221-0/+30
| | | | | | Add three tests; the first and third fail. * tests/019/load-time.tl: New file.
* load: new macros push-after-load and pop-after-load.Kaz Kylheku2021-09-031-0/+10
| | | | | | | | | | | | | * eval.c (me_push_after_load, me_pop_after_load): New static functions. (eval_init): Register push-after-load and pop-after-load intrinsic macros. * tests/019/load-hook.tl: Tests for correct expansion. * txr.1: Documented. * stdlib/doc-syms.tl: Updated.
* load: new *load-hooks* feature.Kaz Kylheku2021-09-021-0/+18
*load-hooks* lets a .txr, .tl or .tlo file specify actions to be taken when the loading of that file completes, whether normally or via an exception. They are also honored by process exit. For instance, with this, we can have a Lisp file that behaves like a script which cleans up after itself (e.g. removing temporary files) even if it is not run as a stand-alone program, but invoked via (load ...). Because it's not a stand-alone program, it cannot simply use the at-exit-call mechanism. The unwind-protect operator could be used, but it's inconvenient because it protects a single form. The *load-hooks* feature in effect protects all the top level forms of a load, similarly to unwind-protect. Also, unwind-protect does not guard against a process exit. (However, *load-hooks* does not guard against an abnormal exit, only normal termination). * eval.c (load_hooks_s): New symbol variable. (run_load_hooks): New function. (run_load_hooks_atexit): New static function. (load): bind *load-hooks* to nil around load. Implement the hooks processing via run_load_hooks, taking care to pass the load-time dynamic environment that has already been undone. (eval_init): Initialize load_hooks_s and register the *load-hooks* variable. Register run_load_hooks_atexit with atexit, so the current value of *load-hooks* is processed on process exit. * eval.h (load_hooks_s, run_load_hooks): Declared. * match.c (v_load): Similar changes as in load. * txr.c (txr_main): Run the load hooks with run_load_hooks immediately after processing the .txr or .tl file, before entering the listener. * tests/019/load-hook.tl: New directory and file * tests/load-hook.tl: New file. * txr.1: Documented. * stdlib/doc-syms.tl: Updated.