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

An encoder for the linking custom section.

This section is a non-standard convention that is supported by the LLVM toolchain. It, along with associated “reloc.*” custom sections, allows you to treat a Wasm module as a low-level object file that can be linked with other Wasm object files to produce a final, complete Wasm module.

The linking section must come before the reloc sections.

Example

use wasm_encoder::{LinkingSection, Module, SymbolTable};

// Create a new linking section.
let mut linking = LinkingSection::new();

// Define a symbol table.
let mut sym_tab = SymbolTable::new();

// Define a function symbol in the symbol table.
let flags = SymbolTable::WASM_SYM_BINDING_LOCAL | SymbolTable::WASM_SYM_EXPORTED;
let func_index = 42;
let sym_name = "my_exported_func";
sym_tab.function(flags, func_index, Some(sym_name));

// Add the symbol table to our linking section.
linking.symbol_table(&sym_tab);

// Add the linking section to a new Wasm module and get the encoded bytes.
let mut module = Module::new();
module.section(&linking);
let wasm_bytes = module.finish();

Implementations

Construct a new encoder for the linking custom section.

Add a symbol table subsection.

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.