pub struct DataSection { /* private fields */ }
Expand description

An encoder for the data section.

Data sections are only supported for modules.

Example

use wasm_encoder::{
    ConstExpr, DataSection, Instruction, MemorySection, MemoryType,
    Module,
};

let mut memory = MemorySection::new();
memory.memory(MemoryType {
    minimum: 1,
    maximum: None,
    memory64: false,
    shared: false,
});

let mut data = DataSection::new();
let memory_index = 0;
let offset = ConstExpr::i32_const(42);
let segment_data = b"hello";
data.active(memory_index, &offset, segment_data.iter().copied());

let mut module = Module::new();
module
    .section(&memory)
    .section(&data);

let wasm_bytes = module.finish();

Implementations

Create a new data section encoder.

The number of data segments in the section.

Determines if the section is empty.

Define a data segment.

Define an active data segment.

Define a passive data segment.

Passive data segments are part of the bulk memory proposal.

Copy an already-encoded data segment into this data section.

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Returns the “default value” for a type. Read more

Encode the type into the given byte sink.

Gets the section identifier for this section.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.