Struct syntex_syntax::codemap::NameAndSpan
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[src]
pub struct NameAndSpan { pub format: ExpnFormat, pub allow_internal_unstable: bool, pub span: Option<Span>, }
Fields
format | The format with which the macro was invoked. |
allow_internal_unstable | Whether the macro is allowed to use #[unstable]/feature-gated features internally without forcing the whole crate to opt-in to them. |
span | The span of the macro definition itself. The macro may not have a sensible definition span (e.g. something defined completely inside libsyntax) in which case this is None. |