csml_interpreter/parser/
parse_scope.rs

1use crate::data::{ast::*, tokens::*};
2use crate::parser::parse_braces::parse_r_brace;
3use crate::parser::{
4    parse_actions::parse_root_functions,
5    parse_comments::comment,
6    state_context::count_commands,
7    tools::{get_interval, parse_error},
8};
9use nom::{
10    bytes::complete::tag,
11    error::{ContextError, ParseError},
12    multi::fold_many0,
13    sequence::delimited,
14    sequence::preceded,
15    *,
16};
17
18////////////////////////////////////////////////////////////////////////////////
19// PUBLIC FUNCTIONS
20////////////////////////////////////////////////////////////////////////////////
21
22pub fn parse_root<'a, E>(s: Span<'a>) -> IResult<Span<'a>, Block, E>
23where
24    E: ParseError<Span<'a>> + ContextError<Span<'a>>,
25{
26    let result = fold_many0(
27        parse_root_functions,
28        Block::default,
29        |mut acc: Block, mut command| {
30            let mut index = acc.commands_count;
31
32            let mut instruction_info = InstructionInfo { index, total: 0 };
33
34            count_commands(&mut command, &mut index, &mut instruction_info);
35
36            acc.commands.push((command, instruction_info));
37            acc.commands_count = index;
38            acc
39        },
40    )(s);
41
42    result
43}
44
45pub fn parse_implicit_scope<'a, E>(s: Span<'a>) -> IResult<Span<'a>, Block, E>
46where
47    E: ParseError<Span<'a>> + ContextError<Span<'a>>,
48{
49    let mut acc = Block::default();
50    let (s, item) = parse_root_functions(s)?;
51
52    let instruction_info = InstructionInfo { index: 0, total: 0 };
53
54    acc.commands.push((item, instruction_info));
55    Ok((s, acc))
56}
57
58pub fn parse_scope<'a, E>(s: Span<'a>) -> IResult<Span<'a>, Block, E>
59where
60    E: ParseError<Span<'a>> + ContextError<Span<'a>>,
61{
62    let (start, _) = get_interval(s)?;
63
64    parse_error(
65        start,
66        s,
67        delimited(
68            preceded(comment, tag(L_BRACE)),
69            parse_root,
70            preceded(comment, parse_r_brace),
71        ),
72    )
73}
csml_interpreter/parser/parse_scope.rs

csml_interpreter/parser/
parse_scope.rs
