Static Single Information Form for Abstract Compilation
Static Single Information Form for Abstract Compilation
复制标题
摘要编译静态单一信息表
DOI:
10.1007/978-3-642-33475-7_2
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
Giovanni Lagorio
中科院分区:
文献类型:
--
作者:
D. Ancona;Giovanni Lagorio
In previous work we have shown that more precise type analysis can be achieved by exploiting union types and static single assignment (SSA) intermediate representation (IR) of code.In this paper we exploit static single information (SSI), an extension of SSA proposed in literature and adopted by some compilers, to allow assignments of more precise types to variables in conditional branches. In particular, SSI can be exploited rather easily and effectively to infer more precise types in dynamic object-oriented languages, where explicit runtime typechecking is frequently used.We show how the use of SSI form can be smoothly integrated with abstract compilation, our approach to static type analysis. In particular, we define abstract compilation based on union and nominal types for a simple dynamic object-oriented language in SSI form with a runtime typechecking operator, to show how precise type inference can be.