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Stop pointer parameters leaking value-pool slots

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Create structure parameters before allocating their representation, then keep pointer references in the call variable's inline slot. Add an 8,000-call regression and document the remaining by-value structure escape limitation.

Co-authored-by: andrew <andrew@aklabs.net>
Co-authored-by: OpenAI Codex (GPT-5) <noreply@openai.com>
This commit is contained in:
Logikoma
2026-08-04 23:09:15 -04:00
parent ed6f463897
commit fd6521d381
7 changed files with 83 additions and 12 deletions
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5
src/runtime.c
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@@ -989,12 +989,13 @@ static akerr_ErrorContext *bind_structure_parameter(akbasic_Runtime *obj, akbasi
obj->structtypes.types[typeindex].name,
obj->structtypes.types[argvalue->structtype].name);
PASS(errctx, akbasic_environment_create(callenv, param->identifier, &variable));
PASS(errctx, akbasic_environment_create_empty(callenv, param->identifier, &variable));
sizes[0] = (ispointer ? 1 : obj->structtypes.types[typeindex].slotcount);
/* A pointer parameter's own reference cannot escape its call scope. */
variable->ispointer = ispointer;
PASS(errctx, akbasic_variable_init(variable, &obj->valuepool, sizes, 1));
variable->valuetype = AKBASIC_TYPE_STRUCT;
variable->structtype = typeindex;
variable->ispointer = ispointer;
if ( ispointer ) {
PASS(errctx, akbasic_value_clone(argvalue, &variable->values[0]));