Struct Options 

pub struct Options {
    pub skip_method_bodies: bool,
    pub lazy_method_bodies: bool,
    pub lazy_method_signatures: bool,
    pub lazy_property_signatures: bool,
    pub lazy_attributes: bool,
}

A dictionary of options for Resolution::parse and DLL::resolve.

Fields

skip_method_bodies: bool

If this flag is set, Resolution::parse and DLL::resolve will not resolve the bodies of class methods, meaning Method::body will always be None.

Default value of false.

lazy_method_bodies: bool

If this flag is set, method bodies are decoded on first access via Resolution::method_body rather than eagerly during parsing.

In lazy mode Method::body is always None regardless of whether the method is abstract. Use Resolution::method_body to retrieve a body; check Method::abstract_member to determine whether a body exists at all.

Decoding errors (malformed IL) are deferred to the first call of Resolution::method_body rather than failing the initial parse.

Default value of false.

lazy_method_signatures: bool

If this flag is set, method signatures are decoded on first access via Resolution::method_signature / Resolution::method_ref_signature rather than eagerly during parsing.

In lazy mode Method::signature and ExternalMethodReference::signature hold a placeholder value (ManagedMethod::default()). Use Resolution::method_signature and Resolution::method_ref_signature to retrieve the real decoded signature.

Decoding errors are deferred to the first accessor call for that method and are not cached — retried on the next call.

This option is independent of lazy_method_bodies and can be combined with it.

Default value of false.

lazy_property_signatures: bool

If this flag is set, property signatures are decoded on first access via Resolution::property_signature rather than eagerly during parsing.

In lazy mode Property::property_type and Property::parameters hold placeholder values. Use Resolution::property_signature to retrieve the decoded signature.

Decoding errors are deferred to the first accessor call for that property and are not cached — retried on the next call.

This option is independent of all other lazy options and can be combined freely.

Default value of false.

lazy_attributes: bool

If this flag is set, custom attributes are not distributed to their parent elements during parsing. Instead, they are resolved on demand via the accessor methods Resolution::type_attributes, Resolution::method_attributes, Resolution::field_attributes, and Resolution::assembly_attributes.

What changes in lazy mode:

• TypeDefinition::attributes, Method::attributes, Field::attributes, and Assembly::attributes are always empty — reads will silently return no attributes.
• Use the accessor methods above to retrieve attributes for any element.
• Accessor methods always return Vec<Attribute> (owned). In eager mode they clone from the already-populated field; in lazy mode they resolve and allocate on each call, but avoid the upfront cost of distributing all attributes at parse time.

What does not change:

• Attribute values (the serialized blob) are already lazy-decoded in both modes — calling Attribute::instantiation_data is always deferred until explicitly requested. This flag only defers the distribution (iterating the table and routing each attribute to its parent element), not the value decode.
• Elements not covered by the four accessors (e.g. TypeReference::attributes, ExternalMethodReference::attributes, parameter attributes, generic parameter attributes) are still distributed eagerly — only the four high-traffic targets are lazy.

Performance note: skipping distribution saves ~8–10 % of total parse time for large assemblies (e.g. System.Private.CoreLib) when only a small subset of elements are inspected. If a workload touches attributes on most elements the savings are minimal.

This option is independent of all other lazy options and can be combined freely.

Default value of false.

Trait Implementations

impl Clone for Options

fn clone(&self) -> Options

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Options

impl Debug for Options

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

Formats the value using the given formatter.

impl Default for Options

fn default() -> Options

Returns the “default value” for a type.