Add a Level type and rename a function

Changes suggested by upstream maintainer Matt Farina.

Author: crooks

go.sum

@@ -1,65 +1,84 @@
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log.go

@@ -89,9 +89,12 @@ type Logger interface {
 	Fatalw(msg string, fields Fields)
 }
 
-// Atoi returns the loglevel integer associated with a common loglevel
+// Level represents the numerical equivilence to the string loglevel
+type Level int
+
+// ParseLevel returns the loglevel integer associated with a common loglevel
 // string representation.
-func Atoi(loglevelStr string) (level int, err error) {
+func ParseLevel(loglevelStr string) (level Level, err error) {
 	switch strings.ToLower(loglevelStr) {
 	case "trace":
 		level = TraceLevel

log_test.go

@@ -154,24 +154,24 @@ func TestInterface(t *testing.T) {
 	buf.Reset()
 }
 
-func TestAtoi(t *testing.T) {
+func TestParseLevel(t *testing.T) {
 	names := []string{"Trace", "Debug", "Info", "Warn", "Warning", "Error", "Panic", "Fatal"}
-	levels := []int{TraceLevel, DebugLevel, InfoLevel, WarnLevel, WarnLevel, ErrorLevel, PanicLevel, FatalLevel}
+	levels := []Level{TraceLevel, DebugLevel, InfoLevel, WarnLevel, WarnLevel, ErrorLevel, PanicLevel, FatalLevel}
 	if len(names) != len(levels) {
 		t.Fatal("inconsistent number of elements in test")
 	}
 	for n := range names {
 		name := names[n]
 		level := levels[n]
-		testLevel, err := Atoi(name)
+		testLevel, err := ParseLevel(name)
 		if err != nil {
 			t.Errorf("name to level translation returned: %v", err)
 		}
 		if testLevel != level {
 			t.Errorf("incorrect loglevel (%d) set by name \"%s\"", level, name)
 		}
 	}
-	_, err := Atoi("fakeName")
+	_, err := ParseLevel("fakeName")
 	if err == nil {
 		t.Error("fake loglevel name failed to return an error")
 	}