Enum SyntaxNodeType 

pub enum SyntaxNodeType {
    Comment,
    VariableToken,
    StringToken,
    WordToken,
    OpenParen,
    CloseParen,
    Whitespace,
    LeftoverText,
    ExpressionGroup,
    ErrorGroup,
}

The meaning of a parsed syntactic element, generated from a substring in the input text

Variants

Comment

Comment line. All text between a non-escaped ‘;’ and a newline

VariableToken

Variable. A symbol immediately preceded by a ‘$’ sigil

StringToken

String Literal. All text between non-escaped ‘“’ (double quote) characters

WordToken

Word Token. Any other whitespace-delimited token that isn’t a Variable, or StringToken

OpenParen

Open Parenthesis. A non-escaped ‘(’ character indicating the beginning of an expression

CloseParen

Close Parenthesis. A non-escaped ‘)’ character indicating the end of an expression

Whitespace

Whitespace. One or more whitespace chars

LeftoverText

Text that remains unparsed after a parse error has occurred

ExpressionGroup

A Group of SyntaxNodes between an OpenParen and a matching CloseParen

ErrorGroup

Syntax Nodes that cannot be combined into a coherent atom due to a parse error, even if some of the individual nodes could represent valid atoms

Implementations

impl SyntaxNodeType

pub fn is_leaf(&self) -> bool

Returns true is the SyntaxNodeType is a leaf (incapable of hosting sub-nodes). Returns false for “group” node tyes.

Trait Implementations

impl Clone for SyntaxNodeType

fn clone(&self) -> SyntaxNodeType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SyntaxNodeType

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

Formats the value using the given formatter.

impl Copy for SyntaxNodeType