runtime.File · builtin ·

File.Exists

Check whether the supplied file path exists.

builtincpufileyeho

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

File.Exists(text path) -> bool

Status: registered-intrinsic

Parameters

text path
Supply path as text.

Call File.Exists

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

cpu · builtin · type checked

text path = "path"
bool result = File.Exists(path)
Console.Log(Text.From(result))
project.mech
manifestVersion = "2"
package = "api.example.runtime__file_exists"
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:828