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lix/tests/lang/eval-okay-attrs2.exp

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* New builtin functions builtins.{hasAttr, getAttr} to check for attribute existence and to return an attribute from an attribute set, respectively. Example: `hasAttr "foo" {foo = 1;}'. They differ from the `?' and `.' operators in that the attribute name is an arbitrary expression. (NIX-61)
2006-09-22 16:31:55 +02:00
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