core: Remove StringList

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config/string_list.go

@@ -1,89 +0,0 @@
-package config
-
-import (
-	"fmt"
-	"strings"
-)
-
-// StringList represents the "poor man's list" that terraform uses
-// internally
-type StringList string
-
-// This is the delimiter used to recognize and split StringLists
-//
-// It plays two semantic roles:
-//   * It introduces a list
-//   * It terminates each element
-//
-// Example representations:
-// []             => SLD
-// [""]           => SLDSLD
-// [" "]          => SLD SLD
-// ["foo"]        => SLDfooSLD
-// ["foo", "bar"] => SLDfooSLDbarSLD
-// ["", ""]       => SLDSLDSLD
-const stringListDelim = `B780FFEC-B661-4EB8-9236-A01737AD98B6`
-
-// Takes a Stringlist and returns one without empty strings in it
-func (sl StringList) Compact() StringList {
-	parts := sl.Slice()
-
-	newlist := []string{}
-	// drop the empty strings
-	for i := range parts {
-		if parts[i] != "" {
-			newlist = append(newlist, parts[i])
-		}
-	}
-	return NewStringList(newlist)
-}
-
-// Build a StringList from a slice
-func NewStringList(parts []string) StringList {
-	// We have to special case the empty list representation
-	if len(parts) == 0 {
-		return StringList(stringListDelim)
-	}
-	return StringList(fmt.Sprintf("%s%s%s",
-		stringListDelim,
-		strings.Join(parts, stringListDelim),
-		stringListDelim,
-	))
-}
-
-// Returns an element at the index, wrapping around the length of the string
-// when index > list length
-func (sl StringList) Element(index int) string {
-	if sl.Length() == 0 {
-		return ""
-	}
-	return sl.Slice()[index%sl.Length()]
-}
-
-// Returns the length of the StringList
-func (sl StringList) Length() int {
-	return len(sl.Slice())
-}
-
-// Returns a slice of strings as represented by this StringList
-func (sl StringList) Slice() []string {
-	parts := strings.Split(string(sl), stringListDelim)
-
-	// split on an empty StringList will have a length of 2, since there is
-	// always at least one deliminator
-	if len(parts) <= 2 {
-		return []string{}
-	}
-
-	// strip empty elements generated by leading and trailing delimiters
-	return parts[1 : len(parts)-1]
-}
-
-func (sl StringList) String() string {
-	return string(sl)
-}
-
-// Determines if a given string represents a StringList
-func IsStringList(s string) bool {
-	return strings.Contains(s, stringListDelim)
-}

config/string_list_test.go

@@ -1,52 +0,0 @@
-package config
-
-import (
-	"reflect"
-	"testing"
-)
-
-func TestStringList_slice(t *testing.T) {
-	expected := []string{"apple", "banana", "pear"}
-	l := NewStringList(expected)
-	actual := l.Slice()
-
-	if !reflect.DeepEqual(expected, actual) {
-		t.Fatalf("Expected %q, got %q", expected, actual)
-	}
-}
-
-func TestStringList_element(t *testing.T) {
-	list := []string{"apple", "banana", "pear"}
-	l := NewStringList(list)
-	actual := l.Element(1)
-
-	expected := "banana"
-
-	if actual != expected {
-		t.Fatalf("Expected 2nd element from %q to be %q, got %q",
-			list, expected, actual)
-	}
-}
-
-func TestStringList_empty_slice(t *testing.T) {
-	expected := []string{}
-	l := NewStringList(expected)
-	actual := l.Slice()
-
-	if !reflect.DeepEqual(expected, actual) {
-		t.Fatalf("Expected %q, got %q", expected, actual)
-	}
-}
-
-func TestStringList_empty_slice_length(t *testing.T) {
-	list := []string{}
-	l := NewStringList([]string{})
-	actual := l.Length()
-
-	expected := 0
-
-	if actual != expected {
-		t.Fatalf("Expected length of %q to be %d, got %d",
-			list, expected, actual)
-	}
-}