runtime.File · builtin ·

File.TryWriteBytes

Try write bytes through the File runtime.

builtincpufileyeho

Built into Yeho; no package import is needed. Native services require an admitted host and the correct resource lifecycle.

File.TryWriteBytes(text path, list of byte contents) -> bool

Status: registered-intrinsic

Parameters

text path
Supply path as text.
list of byte contents
Supply contents as list of byte.

Call File.TryWriteBytes

A complete typed caller with illustrative arguments. Native operations need the corresponding host and resources.

cpu · builtin · type checked

text path = "path"
list of byte contents = []
bool result = File.TryWriteBytes(path, contents)
Console.Log(Text.From(result))
project.mech
manifestVersion = "2"
package = "api.example.runtime__file_trywritebytes"
version = "0.1.0"
languageEdition = "yeho-core-2026.1"

[app]
kind = "headless"
Notes and source

The example checks the call shape. Opening windows, recording audio, changing files, network operations, and process operations have real effects when run. Follow the corresponding package lifecycle before using live resources.

yeho/src/compiler/common/intrinsic_registry.cpp:819