// call_emit_box.hako — CallEmitBox: construct MIR(JSON v0) nodes for call-family ops
// Responsibility: return MapBox nodes for call/boxcall/mir_call variants.
// Notes:
// - Args are expected as an ArrayBox of integer register ids.
// - Callers may optionally attach  (string like "[1,2]") for legacy rebuild paths.

using "lang/src/shared/common/string_helpers.hako" as StringHelpers

static box CallEmitBox {
  make_call(name, arg_ids, dst) {
    return {op: "call", name: name, args: arg_ids, dst: dst}
  }

  make_boxcall(method, recv_id, arg_ids, dst) {
    return {op: "boxcall", method: method, recv: recv_id, args: arg_ids, dst: dst}
  }

  // MIR v1 experimental variants
  make_mir_call_global(name, arg_ids, dst) {
    local callee = {type: "Global", name: name}
    return {op: "mir_call", dst: dst, callee: callee, args: arg_ids}
  }
  make_mir_call_extern(name, arg_ids, dst) {
    local callee = {type: "Extern", name: name}
    return {op: "mir_call", dst: dst, callee: callee, args: arg_ids}
  }

  make_mir_call_method(method, recv_id, arg_ids, dst) {
    local callee = {type: "Method", method: method, receiver: recv_id}
    return {op: "mir_call", dst: dst, callee: callee, args: arg_ids}
  }

  make_mir_call_module(name, arg_ids, dst) {
    local canon = me._canonical_module_name(name, arg_ids.size())
    local callee = {type: "ModuleFunction", name: canon}
    return {op: "mir_call", dst: dst, callee: callee, args: arg_ids}
  }

  make_mir_call_constructor(box_type, arg_ids, dst) {
    local callee = {type: "Constructor", box_type: box_type}
    return {op: "mir_call", dst: dst, callee: callee, args: arg_ids}
  }

  make_mir_call_closure(params, captures, me_capture, dst) {
    local callee = {type: "Closure", params: params, captures: captures}
    if me_capture != null {
      callee.me_capture = me_capture
    }
    return {op: "mir_call", dst: dst, callee: callee, args: []}
  }

  make_mir_call_value(func_vid, arg_ids, dst) {
    local callee = {type: "Value", value: func_vid}
    return {op: "mir_call", dst: dst, callee: callee, args: arg_ids}
  }

  _canonical_module_name(name, arity) {
    if name == null { return "" }
    if name.indexOf("/") >= 0 { return name }
    return name + "/" + StringHelpers.int_to_str(arity)
  }
}

static box CallEmitBoxStub { main(args) { return 0 } }