36 lines
819 B
Text
36 lines
819 B
Text
definition foo := ⦃user_attribute, descr := "bar"⦄
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run_command attribute.register `foo
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attribute [foo] eq.refl
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print [foo]
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print eq.refl
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run_command attribute.get_instances `foo >>= tactic.pp >>= tactic.trace
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print "---"
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-- compound names
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definition foo.baz := ⦃user_attribute, descr := "bar"⦄
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run_command attribute.register `foo.baz
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attribute [foo.baz] eq.refl
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print [foo.baz]
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print eq.refl
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run_command attribute.get_instances `foo.baz >>= tactic.pp >>= tactic.trace
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-- can't redeclare attributes
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definition reducible := ⦃user_attribute, descr := "bar"⦄
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run_command attribute.register `reducible
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-- wrong type
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definition bar := "bar"
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run_command attribute.register `bar
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section
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variable x : string
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definition baz := ⦃user_attribute, descr := x⦄
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run_command attribute.register `baz
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end
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