Andy Wingo 498f3f9568 Avoid stacks in dynamically-bound values ... * libguile/dynstack.h: * libguile/dynstack.c (scm_dynstack_find_old_fluid_value): New function. * libguile/fluids.c (saved_dynamic_state_ref): New helper. (scm_fluid_ref): Fix docstring. (scm_fluid_ref_star): New function allowing access to previous values for a fluid. (scm_dynamic_state_ref): New internal function. * libguile/fluids.h: Add scm_fluid_ref_star and scm_dynamic_state_ref. * libguile/stacks.c (scm_stack_id): Adapt to %stacks not being a chain. * libguile/throw.c (catch, throw_without_pre_unwind): Adapt to %exception-handlers not being a chain. * module/ice-9/boot-9.scm (catch, dispatch-exception): Instead of having %exception-handlers be a chain, use fluid-ref* to access the chain that is in place at the time the exception is thrown. Prevents unintended undelimited capture of the current exception handler stack by a delimited "catch". (%start-stack): Similarly, don't be a chain. * module/system/repl/debug.scm (frame->stack-vector): * module/system/repl/error-handling.scm (call-with-error-handling): * module/ice-9/save-stack.scm (save-stack): Adapt to %stacks not being a chain. * test-suite/tests/exceptions.test ("delimited exception handlers"): Add tests. * doc/ref/api-control.texi (Fluids and Dynamic States): Add docs.		2017-02-07 09:57:55 +01:00
..
command.scm	Fix exception when running ",help debug"	2016-08-25 16:08:50 +02:00
common.scm	Bump user-visible copyright years to 2016.	2016-05-22 20:02:43 +02:00
coop-server.scm	Importing modules with #:select no longer grovels private bindings	2016-06-21 16:01:50 +02:00
debug.scm	Avoid stacks in dynamically-bound values	2017-02-07 09:57:55 +01:00
describe.scm	Use 'substring' instead of obsoleted 'make-shared-substring'	2011-02-02 05:45:37 -08:00
error-handling.scm	Avoid stacks in dynamically-bound values	2017-02-07 09:57:55 +01:00
repl.scm	Add cooperative REPL server module.	2014-02-12 11:26:22 -05:00
server.scm	REPL server avoids thread cleanup handlers	2016-10-31 22:13:30 +01:00