Module pear::macros

Macros.

• parse_declare!
• parse_error!
• impl_show_with!

Macros

impl_show_with	Implements the Show trait for $($T)+ using the existing trait $trait.
parse	Runs the parser with the given name and input, then [parsers::eof()].
parse_context	Returns the current context up to the current mark.
parse_current_marker	Return the mark at the current parsing position.
parse_error	Returns an Err(ParseError::new($e)). Can used like format! as well.
parse_last_marker	Returns the last marker that was set.
parse_mark	Sets the marker to the current position.
parse_try	Runs a parser returning Some if it succeeds or None otherwise.
switch	Invoked much like match, except each condition must be a parser, which is executed, and the corresponding arm is executed only if the parser succeeds. Once a condition succeeds, no other condition is executed.

Attribute Macros

parser

The core attribute macro. Can only be applied to free functions with at least one parameter and a return value. To typecheck, the free function must meet the following typing requirements: