Function validate_function_with_mode 

pub fn validate_function_with_mode(
    func: &ItemFn,
    mode: ValidationMode,
) -> Result<(), ValidationError>

Validate a function with a specific validation mode.

Different kernel types have different validation requirements:

• ValidationMode::Stencil: No loops allowed (current behavior for stencil kernels)
• ValidationMode::Generic: Loops allowed for general CUDA kernels
• ValidationMode::RingKernel: Loops required for persistent actor kernels

Arguments

• func - The function to validate
• mode - The validation mode to use

Returns

Ok(()) if validation passes, Err with the first validation error otherwise.

Example

use ringkernel_cuda_codegen::{validate_function_with_mode, ValidationMode};
use syn::parse_quote;

// Generic kernel with loops allowed
let func: syn::ItemFn = parse_quote! {
    fn process(data: &mut [f32], n: i32) {
        for i in 0..n {
            data[i as usize] = data[i as usize] * 2.0;
        }
    }
};

// This would fail with Stencil mode, but passes with Generic mode
assert!(validate_function_with_mode(&func, ValidationMode::Generic).is_ok());