Struct InvariantGenerator 

pub struct InvariantGenerator;

Generator for invariant constants

Implementations

impl InvariantGenerator

pub fn generate_invariants_constant( structure_def: &StructureDefinition, ) -> String

Generate a INVARIANTS constant for a StructureDefinition

Returns Rust code as a string containing the lazy static declaration, or an empty string if there are no invariants.

Uses once_cell::sync::Lazy for runtime initialization since Invariant::new() is not a const fn (it uses .into() for String conversions).

Example output:

pub static INVARIANTS: once_cell::sync::Lazy<Vec<rh_foundation::Invariant>> =
    once_cell::sync::Lazy::new(|| vec![
        rh_foundation::Invariant::new(
            "pat-1",
            rh_foundation::Severity::Error,
            "SHALL at least contain a contact's details or a reference to an organization",
            "name.exists() or telecom.exists() or address.exists() or organization.exists()"
        ).with_xpath(""),
    ]);

pub fn generate_invariants_tokens( structure_def: &StructureDefinition, ) -> TokenStream

Generate invariants constant using quote! macro (alternative implementation)

This generates the same output but uses proc_macro2::TokenStream, which can be useful for integration with other token-based code generation.