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When do appears at the top level, each expression is evaluated as a separate top-level form, so side effects like require are visible to the compiler when processing subsequent expressions. This is known as the Gilardi scenario. Fixes clojure#723
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Adds a note to the
dospecial form documentation explaining that at the top level, each expression is evaluated as a separate top-level form. This means side effects likerequireare visible to the compiler when processing subsequent expressions.Includes a code example demonstrating the behavior and a note that this does not apply to
doforms nested inside other forms.Verified against
Compiler.javaeval()method: after macroexpanding, if the form is ado, each sub-form is recursivelyeval'd individually rather than compiled as a single unit.Fixes #723