Represents an edge on the graph, or a "route" between stops, created between two extensions when one of them references the target(s) of another. When extension Foo requests targets of extension Bar, the BuildBus provides an Target instead of the literal Tapable instance. This enables better logging, error checking, and validation.

Extends: Trackable
See: Tapable docs

Run .call(...args) on the underlying Tapable Hook. Calls interceptors synchronously and in subscription order with the provided arguments. Returns the final value if it's a Waterfall target, or the value returned by the first interceptor that returns a value if it's a Bail target.

Returns: \* — Returns whatever the underlying Tapable Hook returns.

Parameters

Name
Type
Description
[...args]
\*
All arguments are passed to the interceptor functions that have tapped this Target.

Run .callAsync(...args) on the underlying Tapable Hook. Calls interceptors asynchronously with the provided arguments. Depending on the Target type, calls interceptors in parallel or in subscription order. Last argument must be a callback. It will be invoked when all interceptors have run, or when the first returning interceptor has run if it's a Bail target.

Returns: undefined — callAsync returns nothing, instead passing any output of the interceptors as the first argument of the callback.

Parameters

Name
Type
Description
...args
\*
All arguments except the last argument are passed to the interceptor functions that have tapped this Target. The last argument must be a callback function, which will receive the final output of the interceptors.

Run .intercept(options) on the underlying Tapable Hook. Can register meta-interceptors for other activity on this target. Use only for logging and debugging.

Returns: Parameters

Name
Type
Description
options
object
Options for Tapable#intercept.

Run .promise(...args) on the underlying Tapable hook. Calls interceptors asynchronously with the provided arguments. Depending on the Target type, calls interceptors in parallel or in series. Returns a promise. It will be fulfilled when all interceptors have run, or when the first returning interceptor has run if it's a Bail target.

Returns: Promise — A Promise for any output of the target's interceptors.

Parameters

Name
Type
Description
[...args]
\*
All arguments are passed to the interceptor functions that have tapped this Target.

Adds a synchronous interceptor to the target. If you just supply a function, it will use your extension's package name as the name of the tap.

Returns: Parameters

Name
Type
Description
[name]
string | object
string or object containing the name of the interceptor (optional)
interceptor
function
interceptor function

Adds a callback-style asynchronous interceptor to the Target. The interceptor will receive a callback function as its last argument. Only supported on Async targets.

Returns: Parameters

Name
Type
Description
name
string | object
string or object containing the name of the interceptor
interceptor
function
interceptor function

Adds a Promise-returning async interceptor to the Target. The interceptor may return a Promise, which the Target will resolve. Only supported on Async targets.

Returns: Parameters

Name
Type
Description
name
string | object
string or object containing the name of the interceptor
interceptor
function
interceptor function

Provides the JSON object representation of this target

Returns: object — JSON object

Source Code: pwa-studio/packages/pwa-buildpack/lib/BuildBus/Target.js