nixel 5.2.0

Parser for the Nix Expressions Language
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44

// SPDX-FileCopyrightText: 2022 Kevin Amado <kamadorueda@gmail.com>
//
// SPDX-License-Identifier: GPL-3.0-only

use crate::mem::own;
use crate::mem::own_ll;

#[derive(Clone, Debug, Eq, PartialEq)]
#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
/// `function argument[0] argument[1] ...`.
pub struct FunctionApplication {
    pub function: Box<crate::Expression>,
    pub arguments: Box<[crate::Expression]>,
}

impl FunctionApplication {
    pub fn span(&self) -> crate::Span {
        crate::Span { start: self.start().into(), end: self.end().into() }
    }

    pub fn start(&self) -> crate::Position {
        self.function.start()
    }

    pub fn end(&self) -> crate::Position {
        self.arguments.last().map_or_else(
            crate::Position::default,
            |expression| expression.end(),
        )
    }
}

impl std::convert::From<*mut crate::ffi::any> for FunctionApplication {
    fn from(ptr: *mut crate::ffi::any) -> Self {
        let crate::ffi::FunctionApplication { function, arguments } = own(ptr);

        Self {
            function: Box::new(crate::Expression::from(function)),
            arguments: own_ll::<crate::ffi::Expression, crate::Expression>(
                arguments,
            ),
        }
    }
}