Module ProviderTraitImplMacro 

Declarative macro that generates Requires<dyn T> impl blocks for each provider trait on MountainEnvironment. Invoked as impl_provider!(CommandExecutor) from the parent file.

ProviderTraitImplMacro

Declarative macro that generates Requires<dyn T> implementations for MountainEnvironment, eliminating the boilerplate of writing an identical impl block for each of the 25+ provider traits.

Each invocation of impl_provider!(TraitName) expands to:

impl Requires<dyn TraitName> for MountainEnvironment {
    fn Require(&self) -> Arc<dyn TraitName> {
        Arc::new(self.clone())
    }
}

This is correct because MountainEnvironment directly implements every provider trait, so cloning self and wrapping in Arc satisfies the Requires<dyn T> contract. The generated code is identical to a hand-written implementation - zero runtime overhead.

Type safety and compilation errors for missing trait implementations are reported by the Rust compiler on the generated impl block, not on the macro call site.