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Interpreters can incur huge performance penalties for many reasons. First, the interprative overhead associated with parsing abstract syntax trees is costly. Second, the repeated use of high-level abstractions can force an interpreter to duplicate expensive interpretations. However, a multi-stage interpreter can lessen the penalty paid for both of these activities. This paper details the design, implementation, and testing of a multi-stage interpreter for Featherweight Java (FJ) in MetaOCaml. The use of a run-time class table enables the interpreter to build code fragments of method bodies in the first stage of execution.

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Format:PDFSize:73 KB
Date:Jan 2008
Pages:10
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