#include <scc_hir.h>

void scc_hir_type_init(scc_hir_type_t *in, scc_hir_type_tag_t tag) {
    Assert(in != nullptr);
    in->tag = tag;
    in->name = nullptr;
    switch (tag) {
    case SCC_HIR_TYPE_unknown:
    case SCC_HIR_TYPE_void:
    case SCC_HIR_TYPE_i8:
    case SCC_HIR_TYPE_i16:
    case SCC_HIR_TYPE_i32:
    case SCC_HIR_TYPE_i64:
    case SCC_HIR_TYPE_i128:
    case SCC_HIR_TYPE_u8:
    case SCC_HIR_TYPE_u16:
    case SCC_HIR_TYPE_u32:
    case SCC_HIR_TYPE_u64:
    case SCC_HIR_TYPE_u128:
    case SCC_HIR_TYPE_f16:
    case SCC_HIR_TYPE_f32:
    case SCC_HIR_TYPE_f64:
    case SCC_HIR_TYPE_f128:
        break;
    case SCC_HIR_TYPE_ARRAY:
        in->data.array.base = 0;
        in->data.array.len = 0;
        break;
    case SCC_HIR_TYPE_PTR:
        in->data.pointer.base = 0;
        break;
    case SCC_HIR_TYPE_FUNC:
        scc_vec_init(in->data.function.params);
        in->data.function.ret_type = 0;
        break;
    case SCC_HIR_TYPE_UNION:
    case SCC_HIR_TYPE_STRUCT:
        scc_vec_init(in->data.aggregate.fields);
        break;
    default:
        UNREACHABLE();
        break;
    }
}

void scc_hir_bblock_init(scc_hir_bblock_t *in, const char *label) {
    Assert(in != nullptr);
    Assert(label != nullptr);
    in->name = label;
    scc_vec_init(in->values);
}

void scc_hir_func_init(scc_hir_func_t *in, const char *name) {
    Assert(in != nullptr);
    Assert(name != nullptr);
    in->name = name;
    scc_hir_func_meta_t *meta = SCC_HIR_FUNC_META(in);
    meta->type = SCC_HIR_REF_nullptr;
    scc_vec_init(in->bblocks);
    scc_vec_init(meta->params);
}

void scc_hir_value_init(scc_hir_value_t *in, const char *name,
                        scc_hir_value_tag_t tag) {
    Assert(in != nullptr);
    in->name = name;
    in->tag = tag;
    scc_vec_init(in->used_by);
    in->type = 0;

    switch (tag) {
    case SCC_HIR_VALUE_TAG_NULLPTR:
        break;
    case SCC_HIR_VALUE_TAG_BUILTIN:
        break;
    case SCC_HIR_VALUE_TAG_INTEGER:
        scc_ap_init(&in->data.integer);
        break;
    case SCC_HIR_VALUE_TAG_ALLOC:
        // TODO();
        break;
    case SCC_HIR_VALUE_TAG_LOAD:
        in->data.load.target = 0;
        break;
    case SCC_HIR_VALUE_TAG_STORE:
        in->data.store.target = 0;
        in->data.store.value = 0;
        break;
    case SCC_HIR_VALUE_TAG_GET_ELEM_PTR:
        in->data.get_elem_ptr.src_addr = 0;
        in->data.get_elem_ptr.index = 0;
        break;
    case SCC_HIR_VALUE_TAG_OP:
        in->data.op.op = SCC_HIR_OP_EMPTY;
        in->data.op.lhs = 0;
        in->data.op.rhs = 0;
        break;
    case SCC_HIR_VALUE_TAG_BRANCH:
        in->data.branch.cond = 0;
        in->data.branch.true_bblock = 0;
        in->data.branch.false_bblock = 0;
        break;
    case SCC_HIR_VALUE_TAG_JUMP:
        in->data.jump.target_bblock = 0;
        break;
    case SCC_HIR_VALUE_TAG_CALL:
        scc_vec_init(in->data.call.args);
        in->data.call.callee = 0;
        break;
    case SCC_HIR_VALUE_TAG_RET:
        in->data.ret.ret_val = 0;
        break;
    default:
        UNREACHABLE();
        break;
    }
}