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gh 6594

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prevent compiler crash from self-referential global initialisation
This commit is contained in:
Nikolay Hadzhiev
2026-04-22 09:59:35 +02:00
parent 0a080751e0
commit 48e83ad003
4 changed files with 45 additions and 0 deletions
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20
src/check_decl.cpp
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@@ -1771,6 +1771,12 @@ gb_internal void check_global_variable_decl(CheckerContext *ctx, Entity *e, Ast
Operand o = {};
check_expr_with_type_hint(ctx, &o, init_expr, e->type);
if (check_vet_shadowing_assignment(ctx->checker, e, init_expr)) {
error(e->token, "Illegal declaration cycle of `%.*s`", LIT(e->token.string));
o.mode = Addressing_Invalid;
o.type = t_invalid;
e->type = t_invalid;
}
check_init_variable(ctx, e, &o, str_lit("variable declaration"));
if (e->Variable.is_rodata && o.mode != Addressing_Constant) {
ERROR_BLOCK();
@@ -1980,6 +1986,20 @@ gb_internal void check_entity_decl(CheckerContext *ctx, Entity *e, DeclInfo *d,
e->parent_proc_decl = c.curr_proc_decl;
e->state = EntityState_InProgress;
bool track_cycle_path = false;
switch (e->kind) {
case Entity_Variable:
case Entity_Constant:
case Entity_TypeName:
track_cycle_path = true;
break;
}
if (track_cycle_path) {
check_type_path_push(&c, e);
}
defer (if (track_cycle_path) {
check_type_path_pop(&c);
});
switch (e->kind) {
case Entity_Variable: