Enum parol_runtime::parser::parse_tree_type::ParseTreeType

pub enum ParseTreeType<'t> {
    T(Token<'t>),
    N(&'static str),
}

The type of the elements in the parse tree.

The lifetime parameter 't refers to the lifetime of the scanned text.

Variants

T(Token<'t>)

A scanned token.

N(&'static str)

A non-terminal name. All names are of static lifetime (see NON_TERMINALS slice of non-terminal names).

Implementations

impl<'t> ParseTreeType<'t>

pub fn token(&self) -> Result<&Token<'t>>

Tries to access the Token of the ParseTreeType. Can fail if the entry is no terminal (i.e. a non-terminal).

Trait Implementations

impl<'t> Clone for ParseTreeType<'t>

fn clone(&self) -> ParseTreeType<'t>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'t> Debug for ParseTreeType<'t>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for ParseTreeType<'_>

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Visualize for ParseTreeType<'_>

Implementation of the Visualize trait to support the visualization of the ParseTreeType in a tree layout.

fn visualize(&self) -> String

Returns the string representation of the nodes data.

fn emphasize(&self) -> bool

When this method returns true the drawer can emphasize the node’s string representation in an implementation dependent way, i.e. it can print it bold.