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Merge pull request #6731 from odin-lang/bill/expand-values-operator

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Support `**` as `expand_values` operator: `**x` == `expand_values(x)`
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gingerBill
2026-06-05 11:42:08 +01:00
committed by GitHub
parent 8d1d126e16 13487a45f2
commit 1c9fa5d0b7
9 changed files with 101 additions and 41 deletions
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37
src/check_expr.cpp
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@@ -2950,6 +2950,43 @@ gb_internal void check_unary_expr(CheckerContext *c, Operand *o, Token op, Ast *
return;
}
case Token_MulMul: { // 'expand_values' operator
if (!o->type) {
return;
}
Type *type = base_type(o->type);
if (!is_type_struct(type) && !is_type_array(type)) {
gbString type_str = type_to_string(o->type);
error(node, "Expected a struct or array type to 'expand_values', got '%s'", type_str);
gb_string_free(type_str);
return;
}
Type *tuple = alloc_type_tuple();
if (is_type_struct(type)) {
isize variable_count = type->Struct.fields.count;
tuple->Tuple.variables = permanent_slice_make<Entity *>(variable_count);
// NOTE(bill): don't copy the entities, this should be good enough
gb_memmove_array(tuple->Tuple.variables.data, type->Struct.fields.data, variable_count);
} else if (is_type_array(type)) {
isize variable_count = cast(isize)type->Array.count;
tuple->Tuple.variables = permanent_slice_make<Entity *>(variable_count);
for (isize i = 0; i < variable_count; i++) {
tuple->Tuple.variables[i] = alloc_entity_array_elem(nullptr, blank_token, type->Array.elem, cast(i32)i);
}
}
o->type = tuple;
o->mode = Addressing_Value;
if (tuple->Tuple.variables.count == 1) {
o->type = tuple->Tuple.variables[0]->type;
}
return;
}
}
if (!check_unary_op(c, o, op)) {