Enum SchemaError 

pub enum SchemaError {
    ParseFileFormat(Error),
    ActionTransitiveClosureError(Box<TcError<EntityUID>>),
    EntityTransitiveClosureError(TcError<Name>),
    UnsupportedSchemaFeature(UnsupportedFeature),
    UndeclaredEntityTypes(HashSet<String>),
    UndeclaredActions(HashSet<String>),
    UndeclaredCommonType(HashSet<String>),
    DuplicateEntityType(String),
    DuplicateAction(String),
    DuplicateCommonType(String),
    CycleInActionHierarchy,
    EntityTypeParseError(Vec<ParseError>),
    NamespaceParseError(Vec<ParseError>),
    ExtensionTypeParseError(Vec<ParseError>),
    CommonTypeParseError(Vec<ParseError>),
    ActionEntityTypeDeclared,
    ActionEntityAttributes(Vec<String>),
    ContextOrShapeNotRecord(ContextOrShape),
    ActionEntityAttributeEmptySet,
    ActionEntityAttributeUnsupportedType,
}

Variants

ParseFileFormat(Error)

Errors loading and parsing schema files

ActionTransitiveClosureError(Box<TcError<EntityUID>>)

Errors occurring while computing or enforcing transitive closure on action id hierarchy.

EntityTransitiveClosureError(TcError<Name>)

Errors occurring while computing or enforcing transitive closure on entity type hierarchy.

UnsupportedSchemaFeature(UnsupportedFeature)

Error generated when processing a schema file that uses features which are not yet supported by the implementation.

UndeclaredEntityTypes(HashSet<String>)

Undeclared entity type(s) used in an entity type’s memberOf field, an action’s appliesTo fields, or an attribute type in a context or entity attributes record. Entity types are reported fully qualified, including any implicit or explicit namespaces.

UndeclaredActions(HashSet<String>)

Undeclared action(s) used in an action’s memberOf field.

UndeclaredCommonType(HashSet<String>)

Undeclared type used in entity or context attributes.

DuplicateEntityType(String)

Duplicate specifications for an entity type. Argument is the name of the duplicate entity type.

DuplicateAction(String)

Duplicate specifications for an action. Argument is the name of the duplicate action.

DuplicateCommonType(String)

Duplicate specification for a reusable type declaration.

CycleInActionHierarchy

Cycle in the schema’s action hierarchy.

EntityTypeParseError(Vec<ParseError>)

Parse errors occurring while parsing an entity type.

NamespaceParseError(Vec<ParseError>)

Parse errors occurring while parsing a namespace identifier.

ExtensionTypeParseError(Vec<ParseError>)

Parse errors occurring while parsing an extension type.

CommonTypeParseError(Vec<ParseError>)

Parse errors occurring while parsing the name of one of reusable declared types.

ActionEntityTypeDeclared

The schema file included an entity type Action in the entity type list. The Action entity type is always implicitly declared, and it cannot currently have attributes or be in any groups, so there is no purposes in adding an explicit entry.

ActionEntityAttributes(Vec<String>)

One or more action entities are declared with attributes, but this is not currently supported.

ContextOrShapeNotRecord(ContextOrShape)

ActionEntityAttributeEmptySet

An Action Entity (transitively) has an attribute that is an empty set

ActionEntityAttributeUnsupportedType

An Action Entity (transitively) has an attribute of unsupported type (ExprEscape, EntityEscape or ExtnEscape)

Trait Implementations

impl Debug for SchemaError

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

Formats the value using the given formatter.

impl Display for SchemaError

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

Formats the value using the given formatter.

impl Error for SchemaError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Error> for SchemaError

fn from(e: Error) -> Self

Converts to this type from the input type.

impl From<TcError<EntityUID>> for SchemaError

fn from(e: TcError<EntityUID>) -> Self

Converts to this type from the input type.

impl From<TcError<Name>> for SchemaError

fn from(e: TcError<Name>) -> Self

Converts to this type from the input type.