Enum DiagnosticCode 

#[non_exhaustive]
pub enum DiagnosticCode {
    NotAViewDefinition,
    UnknownKey,
    MissingRequired,
    WrongType,
    EmptyRequired,
    DuplicateColumnName,
    MultipleIterationDirectives,
    SelectWithoutOutput,
    FhirPathSyntax,
    UndeclaredConstant,
    UnknownResourceType,
}

What kind of problem a Diagnostic reports. #[non_exhaustive]: this is a POC rule set (see the module docs for what is deliberately out of scope), and future work is expected to add codes, not just consumers matching on the ones that exist today.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

NotAViewDefinition

The document is not {"resourceType": "ViewDefinition", ...}. When this fires it is always the only diagnostic — nothing else about the document can be meaningfully checked.

UnknownKey

A key this module’s model does not recognize for its node.

MissingRequired

A key the model marks required is absent.

WrongType

A key’s value is not the JSON type the model expects for it.

EmptyRequired

A required string is empty or all whitespace, or a required array is empty.

DuplicateColumnName

Two columns feeding the same output row share a name.

MultipleIterationDirectives

A select sets more than one of forEach, forEachOrNull, repeat — the sql-expressions invariant validate_select_with_context already enforces at run time; this is its structural, all-errors counterpart.

SelectWithoutOutput

A select has none of column, select, unionAll — it can never produce a column.

FhirPathSyntax

A FHIRPath expression does not parse.

#[serde(rename)] overrides the enum’s own kebab-case: serde’s auto-casing splits on every capital, which would turn FhirPath into fhir-path (two words) instead of the one word fhirpath the wire contract (RF1’s own example, and the rest of this codebase’s naming — helios-fhirpath, helios_fhirpath) uses everywhere else.

UndeclaredConstant

A FHIRPath expression parses, but references %name for a name that is neither declared in constant[] nor a FHIRPath environment variable the evaluator resolves. See the module docs for the exact set of names this treats as declared.

UnknownResourceType

resource is a non-empty string that names no resource type of any FHIR version compiled into this build ("Nope", or "patient" — the comparison is case-sensitive, as FHIR resource type names are). A missing, empty or non-string resource is MissingRequired / EmptyRequired / WrongType instead, never this.

Trait Implementations

impl Clone for DiagnosticCode

fn clone(&self) -> DiagnosticCode

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for DiagnosticCode

impl Debug for DiagnosticCode

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for DiagnosticCode

impl PartialEq for DiagnosticCode

fn eq(&self, other: &DiagnosticCode) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for DiagnosticCode

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for DiagnosticCode