Better understanding

Author: ralt

Block.go

@@ -42,15 +42,14 @@ func readFile(cf chan byte, root string, wg sync.WaitGroup) {
 	for b, err := reader.ReadByte(); err != nil; b, err = reader.ReadByte() {
 		cf <- b
 	}
-	defer wg.Done()
+	wg.Done()
 }
 
 func parse(cf chan byte, cb chan Block, wg sync.WaitGroup) {
 	var letter byte
 	state := new(State)
 	for letter = <-cf; letter != 0; letter = <-cf {
-		wg.Add(1)
-		state.parse(cf, cb, wg)
+		state.parse(cf, cb)
 	}
-	defer wg.Done()
+	wg.Done()
 }

Minify.go

@@ -9,5 +9,5 @@ func Minify(cb chan Block, wg sync.WaitGroup) {
 	for block := <-cb; block.selector != nil; block = <-cb {
 		fmt.Printf("%s\n", block.selector)
 	}
-	defer wg.Done()
+	wg.Done()
 }

State.go

@@ -3,7 +3,6 @@ package cssminify
 import (
 	"bytes"
 	"strings"
-	"sync"
 )
 
 type State struct {
@@ -35,7 +34,7 @@ const (
 	IN_VALUE         = iota
 )
 
-func (s *State) parse(cf chan byte, cb chan Block, wg sync.WaitGroup) {
+func (s *State) parse(cf chan byte, cb chan Block) {
 	letter := <-cf
 	switch letter {
 	case '/':
@@ -53,7 +52,6 @@ func (s *State) parse(cf chan byte, cb chan Block, wg sync.WaitGroup) {
 	default:
 		s.rest(letter)
 	}
-	defer wg.Done()
 }
 
 func (s *State) slash(letter byte) {