json_syntax/parse/
array.rs

1use super::{Context, Error, Parse, Parser};
2use decoded_char::DecodedChar;
3use locspan::Meta;
4use locspan_derive::*;
5
6#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Debug)]
7pub enum StartFragment {
8	Empty,
9	NonEmpty,
10}
11
12impl Parse for StartFragment {
13	fn parse_in<C, E>(
14		parser: &mut Parser<C, E>,
15		_context: Context,
16	) -> Result<Meta<Self, usize>, Error<E>>
17	where
18		C: Iterator<Item = Result<DecodedChar, E>>,
19	{
20		let i = parser.begin_fragment();
21		match parser.next_char()? {
22			(_, Some('[')) => {
23				parser.skip_whitespaces()?;
24
25				match parser.peek_char()? {
26					Some(']') => {
27						parser.next_char()?;
28						parser.end_fragment(i);
29						Ok(Meta(StartFragment::Empty, i))
30					}
31					_ => {
32						// wait for value.
33						Ok(Meta(StartFragment::NonEmpty, i))
34					}
35				}
36			}
37			(p, unexpected) => Err(Error::unexpected(p, unexpected)),
38		}
39	}
40}
41
42#[derive(
43	Clone,
44	Copy,
45	PartialEq,
46	Eq,
47	PartialOrd,
48	Ord,
49	Hash,
50	Debug,
51	StrippedPartialEq,
52	StrippedEq,
53	StrippedPartialOrd,
54	StrippedOrd,
55	StrippedHash,
56)]
57pub enum ContinueFragment {
58	Item,
59	End,
60}
61
62impl ContinueFragment {
63	pub fn parse_in<C, E>(parser: &mut Parser<C, E>, array: usize) -> Result<Self, Error<E>>
64	where
65		C: Iterator<Item = Result<DecodedChar, E>>,
66	{
67		parser.skip_whitespaces()?;
68		match parser.next_char()? {
69			(_, Some(',')) => Ok(Self::Item),
70			(_, Some(']')) => {
71				parser.end_fragment(array);
72				Ok(Self::End)
73			}
74			(p, unexpected) => Err(Error::unexpected(p, unexpected)),
75		}
76	}
77}
json_syntax/parse/array.rs

json_syntax/parse/
array.rs
