Struct Output 

pub struct Output {
    event: Vec<u32>,
    error: Vec<String>,
}

Output of the parser – a DFS traversal of a concrete syntax tree.

Use the Output::iter method to iterate over traversal steps and consume a syntax tree.

In a sense, this is just a sequence of SyntaxKind-colored parenthesis interspersed into the original crate::Input. The output is fundamentally coordinated with the input and n_input_tokens refers to the number of times crate::Input::push was called.

Fields

event: Vec<u32>

32-bit encoding of events. If LSB is zero, then that’s an index into the error vector. Otherwise, it’s one of the thee other variants, with data encoded as

|16 bit kind|8 bit n_input_tokens|4 bit tag|4 bit leftover|

error: Vec<String>

Implementations

impl Output

const EVENT_MASK: u32 = 0b1

const TAG_MASK: u32 = 0x0000_00F0

const N_INPUT_TOKEN_MASK: u32 = 0x0000_FF00

const KIND_MASK: u32 = 0xFFFF_0000

const ERROR_SHIFT: u32

const TAG_SHIFT: u32

const N_INPUT_TOKEN_SHIFT: u32

const KIND_SHIFT: u32

const TOKEN_EVENT: u8 = 0

const ENTER_EVENT: u8 = 1

const EXIT_EVENT: u8 = 2

const SPLIT_EVENT: u8 = 3

pub fn iter(&self) -> impl Iterator<Item = Step<'_>>

pub(crate) fn token(&mut self, kind: SyntaxKind, n_tokens: u8)

pub(crate) fn float_split_hack(&mut self, ends_in_dot: bool)

pub(crate) fn enter_node(&mut self, kind: SyntaxKind)

pub(crate) fn leave_node(&mut self)

pub(crate) fn error(&mut self, error: String)

Trait Implementations

impl Default for Output

fn default() -> Output

Returns the “default value” for a type.