func (p *parser) init(fset *token.FileSet, filename string, src []byte, mode uint) {
p.file = fset.AddFile(filename, fset.Base(), len(src))
p.scanner.Init(p.file, src, p, scannerMode(mode))
p.mode = mode
p.trace = mode&Trace != 0 // for convenience (p.trace is used frequently)
p.next()
}
func TestNoPos(t *testing.T) {
if token.NoPos.IsValid() {
t.Errorf("NoPos should not be valid")
}
var fset *token.FileSet
checkPos(t, "nil NoPos", fset.Position(token.NoPos), token.Position{})
fset = token.NewFileSet()
checkPos(t, "fset NoPos", fset.Position(token.NoPos), token.Position{})
}
func verifyPositions(t *testing.T, fset *token.FileSet, f *token.File, lines []int) {
for offs := 0; offs < f.Size(); offs++ {
p := f.Pos(offs)
offs2 := f.Offset(p)
if offs2 != offs {
t.Errorf("%s, Offset: expected offset %d; got %d", f.Name(), offs, offs2)
}
line, col := linecol(lines, offs)
msg := fmt.Sprintf("%s (offs = %d, p = %d)", f.Name(), offs, p)
checkPos(t, msg, f.Position(f.Pos(offs)), token.Position{f.Name(), offs, line, col})
checkPos(t, msg, fset.Position(p), token.Position{f.Name(), offs, line, col})
}
}
