// Calls returns the calls to a given function or method
// specified as a qualified name (e.g. gnd.la/i18n.T or
// gnd.la/app.Context.T).
func Calls(fset *token.FileSet, f *ast.File, fn string) ([]*ast.CallExpr, error) {
pkg, fname := pkgutil.SplitQualifiedName(fn)
pname, ok := Imports(f, pkg)
if !ok {
// Not imported
return nil, nil
}
dot := strings.Index(fname, ".")
if dot == -1 {
// function call
return funcCalls(fset, f, pname, fname)
}
// method call
return methodCalls(fset, f, pname, fname[:dot], fname[dot+1:])
}
func (p *Package) href(word string, scope string) string {
slash := strings.IndexByte(word, '/')
dot := strings.IndexByte(word, '.')
if slash > 0 || dot > 0 {
// Check if there's a type or function mentioned
// after the package.
if pn, tn := pkgutil.SplitQualifiedName(word); pn != "" && tn != "" {
if pn[0] == '*' {
pn = pn[1:]
}
if pkg, err := p.env.ImportPackage(pn); err == nil {
if sr := pkg.symbolHref(tn); sr != "" {
return p.env.reverseDoc(pn) + sr
}
}
if pn == p.dpkg.Name {
return p.symbolHref(tn)
}
} else if _, err := p.env.Context.Import(word, "", build.FindOnly); err == nil {
return p.env.reverseDoc(word)
}
}
if dot > 0 {
// Check the package imports, to see if any of them matches
// TODO: Check for packages imported with a different local
// name.
base := word[:dot]
for _, v := range p.bpkg.Imports {
if path.Base(v) == base && v != base {
return p.href(v+"."+word[dot+1:], scope)
}
}
}
if word[0]&0x20 == 0 {
// Uppercase
if scope != "" {
if href := p.symbolHref(scope + "." + word); href != "" {
return href
}
}
return p.symbolHref(word)
}
return ""
}
// Strings returns a list of string declarations of the given type
// (as a qualified name).
func Strings(fset *token.FileSet, f *ast.File, typ string) ([]*String, error) {
pkg, tname := pkgutil.SplitQualifiedName(typ)
pname, ok := Imports(f, pkg)
if !ok {
// Not imported
return nil, nil
}
var strings []*String
ast.Inspect(f, func(n ast.Node) bool {
switch x := n.(type) {
case *ast.ValueSpec:
p, t := Selector(x.Type)
if p == pname && t == tname {
for _, v := range x.Values {
if s, pos := StringLiteral(fset, v); s != "" && pos != nil {
strings = append(strings, &String{s, pos})
}
}
}
}
return true
})
return strings, nil
}