Trait devise_core::ext::SpanDiagnosticExt [−][src]
pub trait SpanDiagnosticExt { fn error<T>(self, message: T) -> Diagnostic
where
T: Into<String>; fn warning<T>(self, message: T) -> Diagnostic
where
T: Into<String>; fn note<T>(self, message: T) -> Diagnostic
where
T: Into<String>; fn help<T>(self, message: T) -> Diagnostic
where
T: Into<String>; }
Expand description
Extension trait for proc_macro2::Span
emulating the proc-macro diagnostic
API on stable and nightly.
Example
use proc_macro2::Span; use proc_macro2_diagnostics::SpanDiagnosticExt; let span = Span::call_site(); let diag = span.error("there's a problem here..."); // emit into an expression context. let tokens = diag.emit_as_expr_tokens(); // or emit into an item context. let tokens = diag.emit_as_item_tokens();
Required methods
fn error<T>(self, message: T) -> Diagnostic where
T: Into<String>,
fn error<T>(self, message: T) -> Diagnostic where
T: Into<String>,
Create a new Diagnostic
of the kind of this method’s name with the
span self
.
fn warning<T>(self, message: T) -> Diagnostic where
T: Into<String>,
fn warning<T>(self, message: T) -> Diagnostic where
T: Into<String>,
Create a new Diagnostic
of the kind of this method’s name with the
span self
.
fn note<T>(self, message: T) -> Diagnostic where
T: Into<String>,
fn note<T>(self, message: T) -> Diagnostic where
T: Into<String>,
Create a new Diagnostic
of the kind of this method’s name with the
span self
.
fn help<T>(self, message: T) -> Diagnostic where
T: Into<String>,
fn help<T>(self, message: T) -> Diagnostic where
T: Into<String>,
Create a new Diagnostic
of the kind of this method’s name with the
span self
.