Each of these messages compiles the source code provided in the first parameter in the context of the second parameter, which must be a class. To compile in the context of a class means that the compiler will try to interpret variable references as instance, class, or pool variables of the designated class. These messages return a CompiledMethod if they are successful. The compile:inClass: message uses default error handling that returns nil if a warning or error is detected. The compile:inClass:ifFail: message accepts a fail block as the third parameter, and answers the result of evaluating the fail block if a warning or error is detected. The compile:inClass:warningLevel:onWarning:ifFail: message accepts a warning level, warning block, and fail block as parameters. If an error is detected, the result of evaluating the fail block as answered. If a warning is detected, the warning block is evaluated with an instance of CompilerError. If that answers true, the compile fails, and the CompilerError is answered. Otherwise the compile continues.
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