Struct PrecompiledSource 

pub struct PrecompiledSource {
    pub source: String,
    pub entrypoint_name: String,
    pub lang: &'static str,
}

A hand-written kernel’s own compiled text, standing in for what the compiler would have produced from a KernelDefinition.

The text goes to the backend as is, so two things the compiler would have settled are the kernel’s to settle:

• lang names the language the text is written in, and must equal the lang_tag of the compiler the client runs. CompiledKernel::compile in cubecl-server refuses a mismatch, so CUDA C++ handed to a wgpu client is a CompilationError, not a naga parse error at first launch.
• The kernel’s id must cover the text, for instance through KernelId::info with a hash of it. Every compilation cache, in memory and on disk, is keyed by that id and never sees the source, so two kernels with the same id and different text would share one compiled artifact.

There is no representation to read a dynamic shared memory size from, so a precompiled kernel is launched with none: what it needs, it declares statically in the text.

Fields

source: String

The compiled source, in the target language.

entrypoint_name: String

The name of the entrypoint within source.

lang: &'static str

The language source is written in, as the target compiler tags it.