Crate fml_model 

StructureMap for the FHIR Mapping Language: compile FML to a StructureMap resource.

let compiled = fml_model::compile(r#"
/// url = 'http://example.org/StructureMap/Copy'
/// name = 'Copy'
uses "http://hl7.org/fhir/StructureDefinition/Patient" as source
uses "http://hl7.org/fhir/StructureDefinition/Patient" as target

group Copy(source src : Patient, target tgt : Patient) {
  src.name -> tgt.name;
}
"#);
assert!(!compiled.has_errors());
let rule = &compiled.map.group[0].rule[0];
assert_eq!(rule.name.as_deref(), Some("name"));
assert_eq!(rule.target[0].transform.as_deref(), Some("create"));

Re-exports

pub use flavor::R4Map;

pub use flavor::from_json;

pub use flavor::to_r4;

pub use model::StructureMap;

Modules

flavor

StructureMap as FHIR R4 (and R4B) shape it, and back.

model

The StructureMap resource, as FHIR R5 and the Mapping Language IG define it.

Structs

Compiled

The outcome of compiling FML: the map, as complete as the source allows, and the problems.

Locations

The text range of each part of a compiled map, by its location in the StructureMap (StructureMap.group[0].rule[2].source[0], as a debug trace names it). The rules a batch identity rule produces all point at that rule.

Span

A range in the text as the Mapping Language debug trace gives it: zero-based rows and zero-based columns in UTF-16 code units, the end exclusive.

Constants

AUTO_VARIABLE

The variable the simple copy form src.a -> tgt.a; binds on both sides.

BATCH_UNNAMED_PREFIX

Name prefix of the rules produced by an unnamed batch identity rule src -> tgt : a, b;.

REFERENCES_CONTAINED_EXTENSION

Extension on a parameter value that refers to a contained resource.

SOURCE_ELEMENT_EXTENSION

Extension holding source path segments after the first element (src.a.b → b).

TARGET_ELEMENT_EXTENSION

Extension holding target path segments after the first element.

Functions

compile

Compiles FML source text to a StructureMap.

compile_tree

Compiles a parsed file. Syntax errors in the tree are not repeated in the result.

make_id

Utilities.makeId of the reference implementation: keeps ASCII letters, digits, - and ..

print

Writes a StructureMap as FML.

source_path

The source element path: the element and the path segments in the element extension.