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var Tapable = require("tapable");
Tapable
is a class for plugin binding and applying.
Just extend it.
function MyClass() {
Tapable.call(this);
}
MyClass.prototype = Object.create(Tapable.prototype);
MyClass.prototype.method = function() {};
Or mix it in.
function MyClass2() {
EventEmitter.call(this);
Tapable.call(this);
}
MyClass2.prototype = Object.create(EventEmitter.prototype);
Tapable.mixin(MyClass2.prototype);
MyClass2.prototype.method = function() {};
void apply(plugins: Plugin...)
Attaches all plugins passed as arguments to the instance, by calling apply
on them.
void plugin(names: string|string[], handler: Function)
names
are the names (or a single name) of the plugin interfaces the class provides.
handler
is a callback function. The signature depends on the class. this
is the instance of the class.
void applyPlugins(name: string, args: any...)
Synchronously applies all registered handlers for name
. The handler functions are called with all args.
any applyPluginsWaterfall(name: string, init: any, args: any...)
Synchronously applies all registered handlers for name
. The handler functions are called with the return value of the previous handler and all args. For the first handler init
is used and the return value of the last handler is return by applyPluginsWaterfall
void applyPluginsAsync(
name: string,
args: any...,
callback: (err?: Error) -> void
)
Asynchronously applies all registered handlers for name
. The handler functions are called with all args and a callback function with the signature (err?: Error) -> void
. The handler functions are called in order of registration.
callback
is called after all handlers are called.
any applyPluginsBailResult(name: string, args: any...)
Synchronously applies all registered handlers for name
. The handler function are called with all args. If a handler function returns something !== undefined
, the value is returned and no more handlers are applied.
applyPluginsAsyncWaterfall(
name: string,
init: any,
callback: (err: Error, result: any) -> void
)
Asynchronously applies all registered handlers for name
. The handler functions are called with the current value and a callback function with the signature (err: Error, nextValue: any) -> void
. When called, nextValue
is the current value for the next handler. The current value for the first handler is init
. After all handlers are applied, callback
is called with the last value. If any handler passes a value for err
, the callback
is called with this error and no more handlers are called.
applyPluginsAsyncSeries(
name: string,
args: any...,
callback: (err: Error, result: any) -> void
)
Asynchronously applies all registered handlers for name
. The handler functions are called with all args
and a callback function with the signature (err: Error) -> void
. The handlers are called in series, one at a time. After all handlers are applied, callback
is called. If any handler passes a value for err
, the callback
is called with this error and no more handlers are called.
applyPluginsParallel(
name: string,
args: any...,
callback: (err?: Error) -> void
)
Applies all registered handlers for name
in parallel. The handler functions are called with all args and a callback function with the signature (err?: Error) -> void
. The callback
function is called when all handlers have called the callback without err
. If any handler calls the callback with err
, callback
is invoked with this error and the other handlers are ignored.
applyPluginsParallelBailResult(
name: string,
args: any...,
callback: (err: Error, result: any) -> void
)
Applies all registered handlers for name
in parallel. The handler functions are called with all args and a callback function with the signature (err?: Error) -> void
. Handler functions must call the callback. They can either pass an error, pass undefined, or pass a value. The first result (either error or value) which is not undefined is passed to the callback
. The order is defined by registration, not by the speed of the handler function.
hasPlugins(
name: string
)
Returns true, if plugins are registered for this name.