Struct Used 

pub struct Used {
    pub tables: HashSet<Id<Table>>,
    pub types: HashSet<Id<Type>>,
    pub funcs: HashSet<Id<Function>>,
    pub globals: HashSet<Id<Global>>,
    pub memories: HashSet<Id<Memory>>,
    pub elements: HashSet<Id<Element>>,
    pub data: HashSet<Id<Data>>,
}

Finds the things within a module that are used.

This is useful for implementing something like a linker’s --gc-sections so that our emitted .wasm binaries are small and don’t contain things that are not used.

Fields

tables: HashSet<Id<Table>>

The module’s used tables.

types: HashSet<Id<Type>>

The module’s used types.

funcs: HashSet<Id<Function>>

The module’s used functions.

globals: HashSet<Id<Global>>

The module’s used globals.

memories: HashSet<Id<Memory>>

The module’s used memories.

elements: HashSet<Id<Element>>

The module’s used passive element segments.

data: HashSet<Id<Data>>

The module’s used passive data segments.

Implementations

impl Used

pub fn new(module: &Module, deleted: &HashSet<FunctionId>) -> Used

Construct a new Used set for the given module.

Trait Implementations

impl Debug for Used

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Used

fn default() -> Used

Returns the “default value” for a type.