Cleaned up linter warnings

src/build/expression/Expression_test.go

@@ -102,14 +102,15 @@ func TestEachLeaf(t *testing.T) {
 	expr := expression.Parse(tokens)
 	leaves := []string{}
 
-	expr.EachLeaf(func(leaf *expression.Expression) error {
+	err := expr.EachLeaf(func(leaf *expression.Expression) error {
 		leaves = append(leaves, leaf.Token.Text())
 		return nil
 	})
 
+	assert.Nil(t, err)
 	assert.DeepEqual(t, leaves, []string{"1", "2", "3", "4", "5", "6", "7", "8"})
 
-	err := expr.EachLeaf(func(leaf *expression.Expression) error {
+	err = expr.EachLeaf(func(leaf *expression.Expression) error {
 		return fmt.Errorf("error")
 	})
 

src/build/expression/List.go

@@ -4,8 +4,8 @@ import (
 	"git.akyoto.dev/cli/q/src/build/token"
 )
 
-// List generates a list of expressions from comma separated parameters.
-func List(tokens token.List) []*Expression {
+// NewList generates a list of expressions from comma separated parameters.
+func NewList(tokens token.List) []*Expression {
 	var list []*Expression
 
 	EachParameter(tokens, func(parameter token.List) error {

src/build/expression/Parse.go

@@ -38,7 +38,7 @@ func Parse(tokens token.List) *Expression {
 			isFunctionCall := isComplete(cursor)
 
 			if isFunctionCall {
-				parameters := List(tokens[groupPosition:i])
+				parameters := NewList(tokens[groupPosition:i])
 
 				node := New()
 				node.Token.Kind = token.Operator