/rust/registry/src/index.crates.io-6f17d22bba15001f/wasm-encoder-0.4.1/src/modules.rs

Source (jump to first uncovered line)
use super::*;

/// An encoder for the module section.
///
/// Note that this is part of the [module linking proposal][proposal] and is
/// not currently part of stable WebAssembly.
///
/// [proposal]: https://github.com/webassembly/module-linking
///
/// # Example
///
/// ```
/// use wasm_encoder::{ModuleSection, Module};
///
/// let mut modules = ModuleSection::new();
/// modules.module(&Module::new());
/// modules.module(&Module::new());
///
/// let mut module = Module::new();
/// module.section(&modules);
///
/// let wasm_bytes = module.finish();
/// ```
#[derive(Clone, Debug)]
pub struct ModuleSection {
    bytes: Vec<u8>,
    num_added: u32,
}

impl ModuleSection {
    /// Create a new code section encoder.
    pub fn new() -> ModuleSection {
        ModuleSection {
            bytes: vec![],
            num_added: 0,
        }
    }

    /// Writes a dmodule into this module code section.
    pub fn module(&mut self, module: &Module) -> &mut Self {
        self.bytes.extend(
            encoders::u32(u32::try_from(module.bytes.len()).unwrap())
                .chain(module.bytes.iter().copied()),
        );
        self.num_added += 1;
        self
    }
}

impl Section for ModuleSection {
    fn id(&self) -> u8 {
        SectionId::Module.into()
    }

    fn encode<S>(&self, sink: &mut S)
    where
        S: Extend<u8>,
    {
        let num_added = encoders::u32(self.num_added);
        let n = num_added.len();
        sink.extend(
            encoders::u32(u32::try_from(n + self.bytes.len()).unwrap())
                .chain(num_added)
                .chain(self.bytes.iter().copied()),
        );
    }
}

Coverage Report

Created: 2024-10-16 07:58

Line	Count	Source (jump to first uncovered line)
1		use super::*;
2
3		/// An encoder for the module section.
4		///
5		/// Note that this is part of the [module linking proposal][proposal] and is
6		/// not currently part of stable WebAssembly.
7		///
8		/// [proposal]: https://github.com/webassembly/module-linking
9		///
10		/// # Example
11		///
12		/// ```
13		/// use wasm_encoder::{ModuleSection, Module};
14		///
15		/// let mut modules = ModuleSection::new();
16		/// modules.module(&Module::new());
17		/// modules.module(&Module::new());
18		///
19		/// let mut module = Module::new();
20		/// module.section(&modules);
21		///
22		/// let wasm_bytes = module.finish();
23		/// ```
24		#[derive(Clone, Debug)]
25		pub struct ModuleSection {
26		bytes: Vec<u8>,
27		num_added: u32,
28		}
29
30		impl ModuleSection {
31		/// Create a new code section encoder.
32	0	pub fn new() -> ModuleSection {
33	0	ModuleSection {
34	0	bytes: vec![],
35	0	num_added: 0,
36	0	}
37	0	} Unexecuted instantiation: <wasm_encoder::modules::ModuleSection>::new Unexecuted instantiation: <wasm_encoder::modules::ModuleSection>::new Unexecuted instantiation: <wasm_encoder::modules::ModuleSection>::new Unexecuted instantiation: <wasm_encoder::modules::ModuleSection>::new Unexecuted instantiation: <wasm_encoder::modules::ModuleSection>::new Unexecuted instantiation: <wasm_encoder::modules::ModuleSection>::new Unexecuted instantiation: <wasm_encoder::modules::ModuleSection>::new
38
39		/// Writes a dmodule into this module code section.
40	0	pub fn module(&mut self, module: &Module) -> &mut Self {
41	0	self.bytes.extend(
42	0	encoders::u32(u32::try_from(module.bytes.len()).unwrap())
43	0	.chain(module.bytes.iter().copied()),
44	0	);
45	0	self.num_added += 1;
46	0	self
47	0	}
48		}
49
50		impl Section for ModuleSection {
51	0	fn id(&self) -> u8 {
52	0	SectionId::Module.into()
53	0	} Unexecuted instantiation: <wasm_encoder::modules::ModuleSection as wasm_encoder::Section>::id Unexecuted instantiation: <wasm_encoder::modules::ModuleSection as wasm_encoder::Section>::id Unexecuted instantiation: <wasm_encoder::modules::ModuleSection as wasm_encoder::Section>::id Unexecuted instantiation: <wasm_encoder::modules::ModuleSection as wasm_encoder::Section>::id Unexecuted instantiation: <wasm_encoder::modules::ModuleSection as wasm_encoder::Section>::id Unexecuted instantiation: <wasm_encoder::modules::ModuleSection as wasm_encoder::Section>::id Unexecuted instantiation: <wasm_encoder::modules::ModuleSection as wasm_encoder::Section>::id
54
55	0	fn encode<S>(&self, sink: &mut S)
56	0	where
57	0	S: Extend<u8>,
58	0	{
59	0	let num_added = encoders::u32(self.num_added);
60	0	let n = num_added.len();
61	0	sink.extend(
62	0	encoders::u32(u32::try_from(n + self.bytes.len()).unwrap())
63	0	.chain(num_added)
64	0	.chain(self.bytes.iter().copied()),
65	0	);
66	0	} Unexecuted instantiation: <wasm_encoder::modules::ModuleSection as wasm_encoder::Section>::encode::<alloc::vec::Vec<u8>> Unexecuted instantiation: <wasm_encoder::modules::ModuleSection as wasm_encoder::Section>::encode::<alloc::vec::Vec<u8>> Unexecuted instantiation: <wasm_encoder::modules::ModuleSection as wasm_encoder::Section>::encode::<_> Unexecuted instantiation: <wasm_encoder::modules::ModuleSection as wasm_encoder::Section>::encode::<alloc::vec::Vec<u8>> Unexecuted instantiation: <wasm_encoder::modules::ModuleSection as wasm_encoder::Section>::encode::<alloc::vec::Vec<u8>> Unexecuted instantiation: <wasm_encoder::modules::ModuleSection as wasm_encoder::Section>::encode::<alloc::vec::Vec<u8>> Unexecuted instantiation: <wasm_encoder::modules::ModuleSection as wasm_encoder::Section>::encode::<alloc::vec::Vec<u8>>
67		}