//go:build js && wasm

package runtime

import (
	"internal/task"
	"unsafe"
)

// WASM stubs for native-only pipe channel and domain functions.
// On WASM, spawn uses SAB channels (spawn_wasm.mx); pipe-bound channels
// do not exist. pipeBoundFd is always 0 so the guards in chan.mx never
// fire, but the symbols must exist for compilation.

func PipeChanCloseSignal(_ *channel)                                       {}
func (ch *channel) tryPipeSend(_ unsafe.Pointer) bool                     { return false }
func (ch *channel) tryPipeRecv(_ unsafe.Pointer) (received, ok bool)      { return false, false }
func pipeSelectRecheck(_ *task.Task, _ []chanSelectState, _ unsafe.Pointer) bool { return false }

// domainShutdownAll is a no-op on WASM: no OS child processes.
func domainShutdownAll() {}

// PipeFDCanSend always returns true on WASM (SAB channels are unbounded).
func PipeFDCanSend(_ int32) bool { return true }