Struct GrammarBuilder 

pub struct GrammarBuilder { /* private fields */ }

Fluent builder for order-preserving grammars.

Implementations

impl GrammarBuilder

pub const fn new() -> Self

Builds an empty grammar builder.

pub const fn source_format(self, source_format: GrammarFormat) -> Self

Returns this builder with a source format.

pub fn start(self, start: impl Into<String>) -> Self

Returns this builder with a start rule name.

pub fn rule(self, name: impl Into<String>, expr: GrammarExpr) -> Self

Adds a normal rule from a name and expression.

pub fn grammar_rule(self, rule: GrammarRule) -> Self

Adds a complete rule.

pub fn rule_with_kind( self, name: impl Into<String>, expr: GrammarExpr, kind: RuleKind, ) -> Self

Adds a rule with an explicit kind.

pub fn build(self) -> Grammar

Finishes the builder.

Trait Implementations

impl Clone for GrammarBuilder

fn clone(&self) -> GrammarBuilder

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GrammarBuilder

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

Formats the value using the given formatter.

impl Default for GrammarBuilder

fn default() -> GrammarBuilder

Returns the “default value” for a type.

impl PartialEq for GrammarBuilder

fn eq(&self, other: &GrammarBuilder) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for GrammarBuilder

impl StructuralPartialEq for GrammarBuilder