Teek::UI::Scope | Teek API Documentation

A component’s build-time namespace - ambient builder state, kept on a stack parallel to WidgetDSL’s own @stack (see WidgetDSL#component). A real object rather than a bare String/nil on purpose: TOP_LEVEL is one unmistakable sentinel, checked by identity (#top_level?/#equal?) rather than a value any caller could accidentally collide with (nil, an empty string, a label someone else also chose, …). Two Scope instances are never the same scope just because they share a label - Document keys on identity, so every WidgetDSL#component call gets a genuinely fresh, distinct scope regardless of what label (if any) it’s given.

Inherits: Object

Instance Methods ↑

initialize(label nil, parent: nil)

Returns Scope — a new instance of Scope

@api private

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def initialize(label = nil, parent: nil)
  @label = label
  @parent = parent
end

top_level?

Returns Boolean — whether this is TOP_LEVEL

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def top_level?
  equal?(TOP_LEVEL)
end

Attributes ↑

label [R]

Returns Symbol, String, nil — a human-readable label, for error messages/debugging - never part of identity/equality

parent [R]

Returns Scope, nil — the enclosing scope this one was opened inside - nil only for TOP_LEVEL itself