Rust rules

• rust_wasm_bindgen_repositories
• rust_wasm_bindgen_toolchain
• rust_wasm_bindgen

rust_wasm_bindgen

Generates javascript and typescript bindings for a webassembly module.

To use the Rust WebAssembly bindgen rules, add the following to your WORKSPACE file to add the external repositories for the Rust bindgen toolchain (in addition to the Rust rules setup):

load("@rules_rust//wasm_bindgen:repositories.bzl", "rust_wasm_bindgen_repositories")

rust_wasm_bindgen_repositories()

An example of this rule in use can be seen at @rules_rust//examples/wasm/...

ATTRIBUTES

Name	Description	Type	Mandatory	Default
name	A unique name for this target.	Name	required
bindgen_flags	Flags to pass directly to the bindgen executable. See https://github.com/rustwasm/wasm-bindgen/ for details.	List of strings	optional	[]
wasm_file	The .wasm file to generate bindings for.	Label	optional	None

rust_wasm_bindgen_toolchain

The tools required for the rust_wasm_bindgen rule.

You can also use your own version of wasm-bindgen using the toolchain rules below:

load("@rules_rust//bindgen:bindgen.bzl", "rust_bindgen_toolchain")

rust_bindgen_toolchain(
    bindgen = "//my/raze:cargo_bin_wasm_bindgen",
)

toolchain(
    name = "wasm-bindgen-toolchain",
    toolchain = "wasm-bindgen-toolchain-impl",
    toolchain_type = "@rules_rust//wasm_bindgen:wasm_bindgen_toolchain",
)

Now that you have your own toolchain, you need to register it by inserting the following statement in your WORKSPACE file:

register_toolchains("//my/toolchains:wasm-bindgen-toolchain")

For additional information, see the Bazel toolchains documentation.

ATTRIBUTES

Name	Description	Type	Mandatory	Default
name	A unique name for this target.	Name	required
bindgen	The label of a wasm-bindgen executable.	Label	optional	None

rust_wasm_bindgen_repositories

Declare dependencies needed for wasm-bindgen.

This macro will load crate dependencies of wasm-bindgen that are generated using [cargo raze][raze] inside the rules_rust repository. This makes the default toolchain @rules_rust//wasm_bindgen:default_wasm_bindgen_toolchain available. For more information on wasm_bindgen toolchains, see rust_wasm_bindgen_toolchain.