package typecheck

import (
	"cmd/compile/internal/base"
	"cmd/compile/internal/ir"
	"cmd/compile/internal/types"
	"cmd/internal/src"
)

// importfunc declares symbol s as an imported function with type t.
func importfunc(s *types.Sym, t *types.Type) {
	fn := ir.NewFunc(src.NoXPos, src.NoXPos, s, t)
	importsym(fn.Nname)
}

// importvar declares symbol s as an imported variable with type t.

func InitRuntime() {
	base.Timer.Start("fe", "loadsys")

	typs := runtimeTypes()
	for _, d := range &runtimeDecls {
		sym := ir.Pkgs.Runtime.Lookup(d.name)
		typ := typs[d.typ]
		switch d.tag {
		case funcTag:
			importfunc(sym, typ)
		case varTag:
			importvar(sym, typ)
		default:
			base.Fatalf("unhandled declaration tag %v", d.tag)
		}
	}
}

// LookupRuntimeFunc looks up Go function name in package runtime. This function

}

func isUnsafePointer(info *types.Info, e ast.Expr) bool {
	t := info.Types[e].Type
	return t != nil && t.Underlying() == types.Typ[types.UnsafePointer]
}

type importerFunc func(path string) (*types.Package, error)

func (f importerFunc) Import(path string) (*types.Package, error) { return f(path) }

// TODO(adonovan): make this a library function or method of Info.

	}

	return results, nil
}

type result struct {
	a           *analysis.Analyzer
	diagnostics []analysis.Diagnostic
	err         error
}

type importerFunc func(path string) (*types.Package, error)