librashader-reflect 0.11.2

RetroArch shaders for all.
Documentation 
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/// Marker trait for shader compiler targets.
pub trait OutputTarget {
    /// The output format for the target.
    type Output;
}

/// Shader compiler target for GLSL.
#[derive(Debug)]
pub struct GLSL;
/// Shader compiler target for HLSL.
#[derive(Debug)]
pub struct HLSL;
/// Shader compiler target for SPIR-V.
#[derive(Debug)]
pub struct SPIRV;
/// Shader compiler target for MSL.
#[derive(Debug)]
pub struct MSL;
/// Shader compiler target for DXIL.
///
/// The resulting DXIL object is always unvalidated and
/// must be validated using platform APIs before usage.
#[derive(Debug)]
pub struct DXIL;

/// Shader compiler target for WGSL.
///
/// The resulting WGSL will split sampler2Ds into
/// split textures and shaders. Shaders for each texture binding
/// will be in descriptor set 1.
#[derive(Debug)]
pub struct WGSL;
impl OutputTarget for GLSL {
    type Output = String;
}
impl OutputTarget for HLSL {
    type Output = String;
}
impl OutputTarget for WGSL {
    type Output = String;
}
impl OutputTarget for MSL {
    type Output = String;
}
impl OutputTarget for SPIRV {
    type Output = Vec<u32>;
}

#[cfg(test)]
mod test {
    use crate::back::targets::GLSL;
    use crate::back::FromCompilation;
    use crate::front::SpirvCompilation;
    #[allow(dead_code)]
    pub fn test_compile(value: SpirvCompilation) {
        let _x = GLSL::from_compilation(value).unwrap();
    }
}