Fixed linter errors.

bool.go

@@ -5,50 +5,52 @@ import (
 	"encoding/json"
 )
 
-// Nullable boolean type based on sql.NullBool, that supports parsing to/from JSON.
+// Bool is a nullable boolean type based on sql.NullBool, that supports parsing to/from JSON.
 type Bool struct {
 	sql.NullBool
 }
 
-// Returns a new nullable Bool object.
+// NewBool returns a new nullable Bool object.
 // This is equivalent to `null.Bool{sql.NullBool{Bool: b, Valid: valid}}`.
 func NewBool(b, valid bool) Bool {
 	return Bool{sql.NullBool{Bool: b, Valid: valid}}
 }
 
-func (this Bool) MarshalJSON() ([]byte, error) {
-	if this.Valid {
-		return json.Marshal(this.Bool)
+// MarshalJSON implements the encoding json interface.
+func (b Bool) MarshalJSON() ([]byte, error) {
+	if b.Valid {
+		return json.Marshal(b.Bool)
 	}
 
 	return json.Marshal(nil)
 }
 
-func (this *Bool) UnmarshalJSON(data []byte) error {
+// UnmarshalJSON implements the encoding json interface.
+func (b *Bool) UnmarshalJSON(data []byte) error {
 	var value *bool
 
 	if err := json.Unmarshal(data, &value); err != nil {
 		return err
 	}
 
 	if value != nil {
-		this.Valid = true
-		this.Bool = *value
+		b.Valid = true
+		b.Bool = *value
 	} else {
-		this.Valid = false
+		b.Valid = false
 	}
 
 	return nil
 }
 
-// Sets the value and valid to true.
-func (this *Bool) SetValid(b bool) {
-	this.Bool = b
-	this.Valid = true
+// SetValid sets the value and valid to true.
+func (b *Bool) SetValid(value bool) {
+	b.Bool = value
+	b.Valid = true
 }
 
-// Sets the value to default and valid to false.
-func (this *Bool) SetNil() {
-	this.Bool = false
-	this.Valid = false
+// SetNil sets the value to default and valid to false.
+func (b *Bool) SetNil() {
+	b.Bool = false
+	b.Valid = false
 }

doc.go

@@ -1,2 +1,2 @@
-// Package "null" provides nullable types (based on database/sql) that can be parsed to and from JSON.
+// Package null provides nullable types (based on database/sql) that can be parsed to and from JSON.
 package null

float64.go

@@ -5,50 +5,52 @@ import (
 	"encoding/json"
 )
 
-// Nullable float64 type based on sql.NullFloat64, that supports parsing to/from JSON.
+// Float64 is a nullable float64 type based on sql.NullFloat64, that supports parsing to/from JSON.
 type Float64 struct {
 	sql.NullFloat64
 }
 
-// Returns a new nullable Float64 object.
+// NewFloat64 returns a new nullable Float64 object.
 // This is equivalent to `null.Float64{sql.NullFloat64{Float64: f, Valid: valid}}`.
 func NewFloat64(f float64, valid bool) Float64 {
 	return Float64{sql.NullFloat64{Float64: f, Valid: valid}}
 }
 
-func (this Float64) MarshalJSON() ([]byte, error) {
-	if this.Valid {
-		return json.Marshal(this.Float64)
+// MarshalJSON implements the encoding json interface.
+func (f Float64) MarshalJSON() ([]byte, error) {
+	if f.Valid {
+		return json.Marshal(f.Float64)
 	}
 
 	return json.Marshal(nil)
 }
 
-func (this *Float64) UnmarshalJSON(data []byte) error {
+// UnmarshalJSON implements the encoding json interface.
+func (f *Float64) UnmarshalJSON(data []byte) error {
 	var value *float64
 
 	if err := json.Unmarshal(data, &value); err != nil {
 		return err
 	}
 
 	if value != nil {
-		this.Valid = true
-		this.Float64 = *value
+		f.Valid = true
+		f.Float64 = *value
 	} else {
-		this.Valid = false
+		f.Valid = false
 	}
 
 	return nil
 }
 
-// Sets the value and valid to true.
-func (this *Float64) SetValid(f float64) {
-	this.Float64 = f
-	this.Valid = true
+// SetValid sets the value and valid to true.
+func (f *Float64) SetValid(value float64) {
+	f.Float64 = value
+	f.Valid = true
 }
 
-// Sets the value to default and valid to false.
-func (this *Float64) SetNil() {
-	this.Float64 = 0
-	this.Valid = false
+// SetNil sets the value to default and valid to false.
+func (f *Float64) SetNil() {
+	f.Float64 = 0
+	f.Valid = false
 }

int64.go

@@ -5,50 +5,52 @@ import (
 	"encoding/json"
 )
 
-// Nullable int64 type based on sql.NullInt64, that supports parsing to/from JSON.
+// Int64 is a nullable int64 type based on sql.NullInt64, that supports parsing to/from JSON.
 type Int64 struct {
 	sql.NullInt64
 }
 
-// Returns a new nullable Int64 object.
+// NewInt64 returns a new nullable Int64 object.
 // This is equivalent to `null.Int64{sql.NullInt64{Int64: i, Valid: valid}}`.
 func NewInt64(i int64, valid bool) Int64 {
 	return Int64{sql.NullInt64{Int64: i, Valid: valid}}
 }
 
-func (this Int64) MarshalJSON() ([]byte, error) {
-	if this.Valid {
-		return json.Marshal(this.Int64)
+// MarshalJSON implements the encoding json interface.
+func (i Int64) MarshalJSON() ([]byte, error) {
+	if i.Valid {
+		return json.Marshal(i.Int64)
 	}
 
 	return json.Marshal(nil)
 }
 
-func (this *Int64) UnmarshalJSON(data []byte) error {
+// UnmarshalJSON implements the encoding json interface.
+func (i *Int64) UnmarshalJSON(data []byte) error {
 	var value *int64
 
 	if err := json.Unmarshal(data, &value); err != nil {
 		return err
 	}
 
 	if value != nil {
-		this.Valid = true
-		this.Int64 = *value
+		i.Valid = true
+		i.Int64 = *value
 	} else {
-		this.Valid = false
+		i.Valid = false
 	}
 
 	return nil
 }
 
-// Sets the value and valid to true.
-func (this *Int64) SetValid(i int64) {
-	this.Int64 = i
-	this.Valid = true
+// SetValid sets the value and valid to true.
+func (i *Int64) SetValid(value int64) {
+	i.Int64 = value
+	i.Valid = true
 }
 
-// Sets the value to default and valid to false.
-func (this *Int64) SetNil() {
-	this.Int64 = 0
-	this.Valid = false
+// SetNil sets the value to default and valid to false.
+func (i *Int64) SetNil() {
+	i.Int64 = 0
+	i.Valid = false
 }

string.go

@@ -5,50 +5,52 @@ import (
 	"encoding/json"
 )
 
-// Nullable string type based on sql.NullString, that supports parsing to/from JSON.
+// String is a nullable string type based on sql.NullString, that supports parsing to/from JSON.
 type String struct {
 	sql.NullString
 }
 
-// Returns a new nullable String object.
+// NewString returns a new nullable String object.
 // This is equivalent to `null.String{sql.NullString{String: s, Valid: valid}}`.
 func NewString(s string, valid bool) String {
 	return String{sql.NullString{String: s, Valid: valid}}
 }
 
-func (this String) MarshalJSON() ([]byte, error) {
-	if this.Valid {
-		return json.Marshal(this.String)
+// MarshalJSON implements the encoding json interface.
+func (s String) MarshalJSON() ([]byte, error) {
+	if s.Valid {
+		return json.Marshal(s.String)
 	}
 
 	return json.Marshal(nil)
 }
 
-func (this *String) UnmarshalJSON(data []byte) error {
+// UnmarshalJSON implements the encoding json interface.
+func (s *String) UnmarshalJSON(data []byte) error {
 	var value *string
 
 	if err := json.Unmarshal(data, &value); err != nil {
 		return err
 	}
 
 	if value != nil {
-		this.Valid = true
-		this.String = *value
+		s.Valid = true
+		s.String = *value
 	} else {
-		this.Valid = false
+		s.Valid = false
 	}
 
 	return nil
 }
 
-// Sets the value and valid to true.
-func (this *String) SetValid(s string) {
-	this.String = s
-	this.Valid = true
+// SetValid sets the value and valid to true.
+func (s *String) SetValid(value string) {
+	s.String = value
+	s.Valid = true
 }
 
-// Sets the value to default and valid to false.
-func (this *String) SetNil() {
-	this.String = ""
-	this.Valid = false
+// SetNil sets the value to default and valid to false.
+func (s *String) SetNil() {
+	s.String = ""
+	s.Valid = false
 }