Module: Babl::Operators::Switch::DSL

Included in:
Template
Defined in:
lib/babl/operators/switch.rb

Instance Method Summary collapse

Instance Method Details

#switch(conds = Utils::Hash::EMPTY) ⇒ Object

Conditional switching between different templates



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# File 'lib/babl/operators/switch.rb', line 10

def switch(conds = Utils::Hash::EMPTY)
    conds = conds.map { |cond, value| [unscoped.call(cond), unscoped.call(value)] }

    construct_node(continue: nil) { |node, context|
        nodes = conds.map { |cond, value|
            cond_node = cond.builder.precompile(
                Nodes::InternalValue.instance,
                context.merge(continue: nil)
            )

            value_node = value.builder.precompile(
                Nodes::TerminalValue.instance,
                context.merge(continue: node)
            )

            [cond_node, value_node]
        }

        Nodes::Switch.new(nodes)
    }
end