Code verification system and method
First Claim
Patent Images
1. A code verification system, comprising:
- memory for storing a compiled program; and
a code verifier configured to analyze instructions of said program and to generate a plurality of type signatures based on said instructions, each of said type signatures indicating each input type constraint and each output type description for a respective one of said instructions, wherein said code verifier is configured to detect a type error by analyzing said type signatures.
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Abstract
A code verification system is utilized to type check compiled code. The code verification system includes memory and a code verifier. The memory is utilized to store a compiled program. The code verifier analyzes instructions of the program and generates a plurality of type signatures based on the instructions The type signatures indicate the input type constraints and the output type descriptions of the instructions, and the code verifier analyzes the type signatures to detect a type error.
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Citations
13 Claims
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1. A code verification system, comprising:
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memory for storing a compiled program; and
a code verifier configured to analyze instructions of said program and to generate a plurality of type signatures based on said instructions, each of said type signatures indicating each input type constraint and each output type description for a respective one of said instructions, wherein said code verifier is configured to detect a type error by analyzing said type signatures. - View Dependent Claims (2, 3, 4)
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5. A code verification system, comprising:
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memory for storing a compiled program; and
a code verifier configured to analyze a code block of said program and to translate instructions within said code block into a plurality of type signatures, said code verifier further configured to compose said type signatures into a single composed type signature and to detect a type error by analyzing said type signatures. - View Dependent Claims (6, 7)
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8. A code verification method, comprising the steps of:
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storing a compiled program;
generating a plurality of type signatures based on instructions within said program, each of said type signatures indicating each input type constraint and each output type description for a respective one of said instructions;
analyzing said type signatures; and
detecting a type error based on said analyzing step. - View Dependent Claims (9, 10)
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11. A code verification method, comprising the steps of:
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storing a compiled program, said compiled program having at least one code block that includes a plurality of instructions;
translating said instructions into a plurality of type signatures;
composing said type signatures into a single composed type signature;
analyzing said type signatures; and
detecting a type error based on said analyzing step. - View Dependent Claims (12, 13)
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Specification