Enum Syntax 

#[repr(align(16))]
pub enum Syntax {
    Wrapped {
        value: Value,
        span: Span,
    },
    List {
        list: Vec<Syntax>,
        span: Span,
    },
    Vector {
        vector: Vec<Syntax>,
        span: Span,
    },
    Identifier {
        ident: Identifier,
        span: Span,
    },
}

Representation of a Scheme syntax object, or s-expression.

Variants

Wrapped

A wrapped value.

Fields

value: Value

span: Span

List

A nested grouping of pairs. If the expression is a proper list, then the last element of expression will be Null. This vector is guaranteed to contain at least two elements.

Fields

list: Vec<Syntax>

span: Span

Vector

Fields

vector: Vec<Syntax>

span: Span

Identifier

Fields

ident: Identifier

span: Span

Implementations

impl Syntax

pub fn add_scope(&mut self, scope: Scope)

pub fn flip_scope(&mut self, scope: Scope)

pub fn remove_scope(&mut self, scope: Scope)

pub fn wrap(value: Value) -> Syntax

pub fn unwrap(self) -> Value

pub fn datum_to_syntax(scopes: &BTreeSet<Scope>, value: Value) -> Syntax

pub fn syntax_to_datum(value: Value) -> Value

pub fn from_str( s: &str, file_name: Option<&str>, ) -> Result<Self, ParseSyntaxError>

pub fn span(&self) -> &Span

pub fn as_ident(&self) -> Option<&Identifier>

pub fn new_list(list: Vec<Syntax>, span: impl Into<Span>) -> Self

pub fn as_list(&self) -> Option<&[Syntax]>

pub fn as_list_mut(&mut self) -> Option<&mut [Syntax]>

pub fn is_list(&self) -> bool

pub fn new_vector(vector: Vec<Syntax>, span: impl Into<Span>) -> Self

pub fn is_vector(&self) -> bool

pub fn new_wrapped(value: Value, span: impl Into<Span>) -> Self

pub fn new_identifier(name: &str, span: impl Into<Span>) -> Self

pub fn is_identifier(&self) -> bool

pub fn is_null(&self) -> bool

Trait Implementations

impl Clone for Syntax

fn clone(&self) -> Syntax

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Syntax

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

Formats the value using the given formatter.

impl From<Syntax> for UnpackedValue

fn from(v: Syntax) -> Self

Converts to this type from the input type.

impl From<Syntax> for Value

fn from(v: Syntax) -> Self

Converts to this type from the input type.

impl Trace for Syntax

unsafe fn visit_children(&self, visitor: &mut dyn FnMut(OpaqueGcPtr))

Safety

unsafe fn finalize(&mut self)

Safety