func (m *mGocodeComplete) Call() (interface{}, string) {
e := ""
res := M{}
if m.Src == "" {
// this is here for testing, the client should always send the src
s, _ := ioutil.ReadFile(m.Fn)
m.Src = string(s)
}
if m.Src == "" {
return res, "No source"
}
pos := 0
for i, _ := range m.Src {
pos += 1
if pos > m.Pos {
pos = i
break
}
}
src := []byte(m.Src)
fn := m.Fn
if !filepath.IsAbs(fn) {
fn = filepath.Join(orString(m.Dir, m.Home), orString(fn, "_.go"))
}
mGocodeVars.lck.Lock()
defer mGocodeVars.lck.Unlock()
builtins := "false"
if m.Builtins {
builtins = "true"
}
if mGocodeVars.lastBuiltins != builtins {
gocode.GoSublimeGocodeSet("propose-builtins", builtins)
}
gopath := orString(m.Env["GOPATH"], os.Getenv("GOPATH"))
if gopath != mGocodeVars.lastGopath {
p := []string{}
osArch := runtime.GOOS + "_" + runtime.GOARCH
for _, s := range filepath.SplitList(gopath) {
p = append(p, filepath.Join(s, "pkg", osArch))
}
libpath := strings.Join(p, string(filepath.ListSeparator))
gocode.GoSublimeGocodeSet("lib-path", libpath)
mGocodeVars.lastGopath = gopath
}
if m.calltip {
res["calltips"] = completeCalltip(src, fn, pos)
} else {
res["completions"] = gocode.GoSublimeGocodeComplete(src, fn, pos)
}
return res, e
}
func completeCalltip(src []byte, fn string, offset int) []gocode.GoSublimeGocodeCandidate {
fset := token.NewFileSet()
af, _ := parser.ParseFile(fset, fn, src, 0)
if af != nil {
vis := &calltipVisitor{
offset: offset,
fset: fset,
}
ast.Walk(vis, af)
if vis.x != nil {
var id *ast.Ident
switch v := vis.x.Fun.(type) {
case *ast.Ident:
id = v
case *ast.SelectorExpr:
id = v.Sel
}
if id != nil && id.End().IsValid() {
line := offsetLine(fset, af, offset)
cp := fset.Position(id.End())
cr := cp.Offset
cl := gocode.GoSublimeGocodeComplete(src, fn, cr)
if (cp.Line == line || line == 0) && len(cl) > 0 {
for i, c := range cl {
if strings.EqualFold(id.Name, c.Name) {
return cl[i : i+1]
}
}
}
}
}
}
return []gocode.GoSublimeGocodeCandidate{}
}