Struct wast::Error [−][src]
pub struct Error { /* fields omitted */ }A convenience error type to tie together all the detailed errors produced by this crate.
This type can be created from a lexer::LexError or [parser::Error].
This also contains storage for file/text information so a nice error can be
rendered along the same lines of rustc’s own error messages (minus the
color).
This type is typically suitable for use in public APIs for consumers of this crate.
Implementations
impl Error[src]
impl Error[src]pub fn new(span: Span, message: String) -> Error[src]
Creates a new error with the given message which is targeted at the
given span
Note that you’ll want to ensure that set_text or set_path is called
on the resulting error to improve the rendering of the error message.
pub fn span(&self) -> Span[src]
Return the Span for this error.
pub fn set_text(&mut self, contents: &str)[src]
To provide a more useful error this function can be used to extract relevant textual information about this error into the error itself.
The contents here should be the full text of the original file being
parsed, and this will extract a sub-slice as necessary to render in the
Display implementation later on.
pub fn set_path(&mut self, path: &Path)[src]
To provide a more useful error this function can be used to set the file name that this error is associated with.
The path here will be stored in this error and later rendered in the
Display implementation.
pub fn lex_error(&self) -> Option<&LexError>[src]
Returns the underlying LexError, if any, that describes this error.
pub fn message(&self) -> String[src]
Returns the underlying message, if any, that describes this error.