Add three new public C API functions to the Wren embedding API that enable foreign methods to create and populate lists. wrenEnsureSlots grows the foreign slot stack to guarantee space for temporary work, wrenSetSlotNewList stores a new empty list in a slot, and wrenInsertInList inserts a value from one slot into a list at another slot at a given index (supporting negative indices for relative positioning). The implementation includes a new internal ensureStack helper that reallocates the fiber's stack and updates all pointers (stack top, call frame starts, open upvalues, and foreign stack start) when the reallocation moves the stack. New test files (lists.c, lists.h, lists.wren) exercise creation, appending, insertion, and negative index insertion, and the existing slots test is extended with an ensure test that verifies slot count growth and slot usability.
This contains the automated validation suite for the VM and built-in libraries.
-
benchmark/- Performance tests. These aren't strictly pass/fail, but let us compare performance both against other languages and against previous builds of Wren itself. -
core/- Tests for the built in core library, mainly methods on the core classes. If a bug is inwren_core.corwren_value.c, it will most likely break one of these tests. -
language/- Tests of the language itself, its grammar and runtime semantics. If a bug is inwren_compiler.corwren_vm.c, it will most likely break one of these tests. This includes tests for the syntax for the literal forms of the core classes. -
limit/- Tests for various hardcoded limits. The language doesn't officially specify these limits, but the Wren implementation has them. These tests ensure that limit behavior is well-defined and tested.