Struct lichen::parse::Parser
[−]
[src]
pub struct Parser(_);
Methods
impl Parser
[src]
fn parse_blocks(src: &str) -> Result<Parser, &'static str>
fn sink(self, v: &mut Vec<Block>) -> Option<usize>
Consumes parser, pushes blocks onto existing vec
Returns starting index of where it was pushed onto vec
fn into_env(self) -> Env
Consumes parser, builds environment
fn parse_map(map_ir: IR) -> Result<Map, &'static str>
Parses a map from IR
Parsed using commas for variable sized maps
Methods from Deref<Target = Vec<Block>>
fn capacity(&self) -> usize
1.0.0
Returns the number of elements the vector can hold without reallocating.
Examples
let vec: Vec<i32> = Vec::with_capacity(10); assert_eq!(vec.capacity(), 10);
fn into_boxed_slice(self) -> Box<[T]>
1.0.0
Converts the vector into Box<[T]>
.
Note that this will drop any excess capacity. Calling this and
converting back to a vector with into_vec
is equivalent to calling
shrink_to_fit
.
Examples
let v = vec![1, 2, 3]; let slice = v.into_boxed_slice();
Any excess capacity is removed:
let mut vec = Vec::with_capacity(10); vec.extend([1, 2, 3].iter().cloned()); assert_eq!(vec.capacity(), 10); let slice = vec.into_boxed_slice(); assert_eq!(slice.into_vec().capacity(), 3);
fn as_slice(&self) -> &[T]
1.7.0
Extracts a slice containing the entire vector.
Equivalent to &s[..]
.
Examples
use std::io::{self, Write}; let buffer = vec![1, 2, 3, 5, 8]; io::sink().write(buffer.as_slice()).unwrap();
fn len(&self) -> usize
1.0.0
Returns the number of elements in the vector, also referred to as its 'length'.
Examples
let a = vec![1, 2, 3]; assert_eq!(a.len(), 3);
fn is_empty(&self) -> bool
1.0.0
Returns true
if the vector contains no elements.
Examples
let mut v = Vec::new(); assert!(v.is_empty()); v.push(1); assert!(!v.is_empty());