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Code Issues 1 Releases Wiki Activity

Make janet_equals and janet_compare non recursive

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This makes these operatios use constant stack space rather
than linear stackspace given the size of the inputs. This is important
to prevent certain parser input from causing a stack overflow - in
general, we try to avoid unbounded recursion.
This commit is contained in:
Calvin Rose
2020-04-24 16:18:31 -05:00
parent c335bf5dc5
commit a87015598c
8 changed files with 196 additions and 136 deletions
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5
src/core/vm.c
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@@ -1406,6 +1406,10 @@ int janet_init(void) {
janet_vm_abstract_registry = janet_table(0);
janet_gcroot(janet_wrap_table(janet_vm_registry));
janet_gcroot(janet_wrap_table(janet_vm_abstract_registry));
/* Traversal */
janet_vm_traversal = NULL;
janet_vm_traversal_base = NULL;
janet_vm_traversal_top = NULL;
/* Core env */
janet_vm_core_env = NULL;
/* Seed RNG */
@@ -1428,6 +1432,7 @@ void janet_deinit(void) {
janet_vm_registry = NULL;
janet_vm_abstract_registry = NULL;
janet_vm_core_env = NULL;
free(janet_vm_traversal_base);
#ifdef JANET_THREADS
janet_threads_deinit();
#endif