Opening Brace on Same Line

The opening brace of a class must be on the same line after the definition and must be the last thing on that line.

Valid: Opening brace on the same line.

class Foo <em>{</em> }

Invalid: Opening brace on the next line.

class Foo <em>{</em> }

Valid: Opening brace is the last thing on the line.

class Foo <em>{</em> }

Invalid: Opening brace not last thing on the line.

class Foo {<em> // Start of class.</em> }