/
inspect.go
70 lines (61 loc) · 1.48 KB
/
inspect.go
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package astio
import (
"go/ast"
"go/token"
"go/types"
"golang.org/x/tools/go/packages"
)
type Visitor interface {
PackageFunctionCall(call PackageFunctionCall) error
}
type PackageFunctionCall struct {
Position token.Position
Call *ast.CallExpr
TargetPkg *ast.Ident
TargetPkgName *types.PkgName
TargetFun *ast.SelectorExpr
TypesInfo *types.Info
}
func (call *PackageFunctionCall) PackagePath() string {
return call.TargetPkgName.Imported().Path()
}
func (call *PackageFunctionCall) FunctionName() string {
return call.TargetFun.Sel.Name
}
func (call *PackageFunctionCall) Args() []ast.Expr {
return call.Call.Args
}
func (call *PackageFunctionCall) SetArgs(args []ast.Expr) {
call.Call.Args = args
}
func Inspect(pkg *packages.Package, file *ast.File, v Visitor) error {
var lastErr error
ast.Inspect(file, func(node ast.Node) bool {
switch node := node.(type) {
case *ast.CallExpr:
p := Position(pkg, node)
switch fun := node.Fun.(type) {
case *ast.SelectorExpr:
switch x := fun.X.(type) {
case *ast.Ident:
switch o := pkg.TypesInfo.ObjectOf(x).(type) {
case *types.PkgName:
if err := v.PackageFunctionCall(PackageFunctionCall{
Position: p,
Call: node,
TargetPkg: x,
TargetPkgName: o,
TargetFun: fun,
TypesInfo: pkg.TypesInfo,
}); err != nil {
lastErr = err
return false
}
}
}
}
}
return true
})
return lastErr
}