How Can I Statically Identify the Types of Identifiers in Go Code?

Static Identification of Identifiers in Go

For static code analysis, it is often necessary to determine the types of ast.Ident objects. However, the go/parse, go/token, and go/ast modules alone do not provide sufficient information.

To resolve static identifiers, the next step is to leverage the type checker, golang.org/x/tools/go/types. This package allows for the determination of types based on import dependencies.

Here is how to proceed:

1. Use the golang.org/x/tools/go/loader package to manage the complexities of dependencies.
2. Identify the expression of interest and its type in the types.Info structure for the AST's package.
3. For referring identifiers, refer to the Uses mapping to identify the associated types.Object.
4. For other expression types, refer to the Types mapping to obtain the relevant type information.

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