func (c *Clang) GetDefinition(a *content.GetDefinitionArgs, ret *content.SourceLocation) error {
fn, args, err := c.prepare(&a.CompleteAtArgs)
if err != nil {
return err
}
args = append([]string{"-fsyntax-only", "-Xclang", "-ast-dump", "-Xclang", "-ast-dump-filter", "-Xclang", a.Identifier}, args...)
args = append(args, fn)
out, oute, err := RunClang(a.Location.File.Contents, args...)
if len(out) == 0 {
if err != nil {
return err
} else {
return fmt.Errorf("%s", oute)
}
}
re, err := regexp.Compile(`\w+Decl[^<]+<(..[^:,]+):?(\d+)?:?(\d+)?.*?\s` + a.Identifier + `\s`)
if err != nil {
return err
}
res := re.FindAllStringSubmatch(string(out), -1)
if len(res) == 0 {
return fmt.Errorf("Not found")
}
ret.File.Name = res[0][1]
i, _ := strconv.ParseInt(res[0][2], 10, 32)
ret.Line = uint(i)
i, _ = strconv.ParseInt(res[0][3], 10, 32)
ret.Column = uint(i)
return nil
}
func TestClang(t *testing.T) {
if _, err := RunClang("-v"); err != nil {
t.Skipf("Couldn't launch clang: %s", err)
}
loc := content.SourceLocation{}
loc.Column = 1
loc.Line = 10
loc.File.Name = "testdata/hello.cpp"
t.Log(CompleteAt([]string{}, loc))
}
