![]() ![]() It is a first-order functional programming language with recursive definitions.Ī program is a list of function declarations.įunctions are mutually exclusive and no function can be declared more than once.Įach function declares its result type and the types and names of its arguments.įunctions and variables have separate name spaces. The type checking phase in compiler design is interleaved with the syntax analysis phase therefore it is done before execution or translation of a program( static typing) and thus the information is gathered for use by subsequent phases, for example, the translator will exploit type information for it to naturally combine calculation of types with the actual translation. Lexical analysis and parsing phases in the compiler filter out many texts however many programing languages with well-formed requirements cannot be handled by the techniques used in these two phases because more often than not, they are not context free and thus cannot be able check by membership of a context-free grammar. Type checking is the process of verifying and enforcing constraints of types in values. Type checking of function declarations.In this article we discuss the process through which a compiler checks for correct syntactic and semantic conversions for a source language.
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