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`class Span`

A span which validates tag assignment.

Definitions

`def initialize(context)`

Initialize a new span.

Signature

parameter　context　Context: The context in which the span is recorded.

Implementation

def initialize(context)
	@context = context
end

`attr :context`

Signature

attribute　Context: The context in which the span is recorded.

`def []= key, value`

Assign some metadata to the span.

Signature

parameter　key　String: The metadata key.
parameter　value　Object: The metadata value. Should be coercable to a string.

Implementation

def []= key, value
	unless key.is_a?(String) || key.is_a?(Symbol)
		raise ArgumentError, "Invalid attribute key (must be String or Symbol): #{key.inspect}!"
	end
	
	begin
		String(value)
	rescue
		raise ArgumentError, "Invalid attribute value (must be convertible to String): #{value.inspect}!"
	end
end