29 lines
612 B
Go
29 lines
612 B
Go
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package event
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// Context represents the context of an event. Handlers of an event may call methods on the context to change
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// the result of the event.
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type Context[T any] struct {
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cancel bool
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val T
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}
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// C returns a new event context.
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func C[T any](v T) *Context[T] {
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return &Context[T]{val: v}
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}
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// Val returns the subject of the Context.
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func (ctx *Context[T]) Val() T {
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return ctx.val
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}
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// Cancelled returns whether the context has been cancelled.
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func (ctx *Context[T]) Cancelled() bool {
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return ctx.cancel
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}
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// Cancel cancels the context.
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func (ctx *Context[T]) Cancel() {
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ctx.cancel = true
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}
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