Crate amplify_syn

Amplifying Rust language capabilities: helper functions for creating proc macro libraries

Examples

#[name] - single form #[name = "literal"] - optional single value #[name = TypeName] - path value #[name("literal", TypeName, arg = value)] - list of arguments

Structs

AttrReq	Structure requirements for parametrized attribute
ParametrizedAttr	Representation for all allowed forms of #[attr(...)] attribute. If attribute has a multiple occurrences they are all assembled into a single list. Repeated named arguments are not allowed and result in errors.
SingularAttr	Structure describing a procedural macro attribute with an optional value. The means that if one has something like #[name1], #[name2 = "value"], #[name3 = ::std::path::PathBuf)] than name1, name2 = "value", and name3 = ::std::path::PathBuf are three different attributes which can be parsed and represented by the SingularAttr structure.

Enums

ArgReq	Requirements for attribute or named argument value presence
ArgValue	Value for attribute or attribute argument, i.e. for #[attr = value] and #[attr(arg = value)] this is the value part of the attribute. Can be either a single literal or a single valid rust type name
Attr	Internal structure representation of a proc macro attribute collected instances having some specific name (accessible via Attr::name()).
Error	Errors representing inconsistency in proc macro attribute structure
ListReq	Requirements for list elements. For instance, used in AttrReq for providing [ParametrizedAttr] fields requirements.
LiteralClass	Constrains for literal value type
TypeClass	Constrains for the possible types that a Rust value could have.
ValueClass	Constrains for attribute value type
ValueReq	Requirements for attribute or named argument value presence