index.jl

"""
    Index(exclude_decls_from_PCH, display_diagnostics)
Provide a shared context for creating translation units.

# Arguments
- `exclude_decls_from_PCH`: whether to allow enumeration of "local" declarations.
- `display_diagnostics`: whether to display diagnostics.
"""
mutable struct Index
    ptr::CXIndex
    exclude_decls_from_PCH::Cint
    display_diagnostics::Cint
    function Index(exclude_decls_from_PCH, display_diagnostics)
        ptr = clang_createIndex(exclude_decls_from_PCH, display_diagnostics)
        @assert ptr != C_NULL
        obj = new(ptr, exclude_decls_from_PCH, display_diagnostics)
        finalizer(obj) do x
            if x.ptr != C_NULL
                clang_disposeIndex(x)
                x.ptr = C_NULL
            end
        end
        return obj
    end
end
Index(diagnostic::Bool) = Index(false, diagnostic)
Index() = Index(true)

Base.unsafe_convert(::Type{CXIndex}, x::Index) = x.ptr

## TODO:
# clang_CXIndex_setGlobalOptions
# clang_CXIndex_getGlobalOptions
# clang_CXIndex_setInvocationEmissionPathOption