wasmtime::Tag Class Reference

A WebAssembly tag. More...

#include <tag.hh>

Public Member Functions
	Tag (wasmtime_tag_t tag)
	Creates a tag from the raw underlying C API representation.
TagType	type (Store::Context cx) const
	Returns the type of this tag.
bool	eq (Store::Context cx, const Tag &other) const
	Tests whether two tags are identical.
const wasmtime_tag_t &	capi () const
	Returns the raw underlying C API tag this is using.

Static Public Member Functions
static Result< Tag >	create (Store::Context cx, const TagType &ty)
	Create a new host-defined tag. More...

Friends
class	Instance

Detailed Description

A WebAssembly tag.

Tags are used to identify exception types. A tag describes the payload signature of exceptions created with it.

Note that this type does not itself own any resources. It points to resources owned within a Store and the Store must be passed in as the first argument to the functions defined on Tag. Note that if the wrong Store is passed in then the process will be aborted.

Member Function Documentation

create()

static Result< Tag > wasmtime::Tag::create ( Store::Context  cx, const TagType &  ty  )

inlinestatic

Create a new host-defined tag.

Parameters

cx	the store in which to create the tag
ty	the tag type describing the exception payload

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The documentation for this class was generated from the following file:

• tag.hh