The deriveEqual function is a faster alternative to reflect.DeepEqual.

Given the following input:

package equal

type MyStruct struct {
	Int64     int64
	StringPtr *string
	Foo       *Foo
}

func (this *MyStruct) Equal(that *MyStruct) bool {
	return deriveEqual(this, that)
}

type Foo struct {
	Name  string
	other string
}

func (this *Foo) Equal(that *Foo) bool {
	return this.Name == that.Name
}

goderive will generate the following code:

// Code generated by goderive DO NOT EDIT.

package equal

// deriveEqual returns whether this and that are equal.
func deriveEqual(this, that *MyStruct) bool {
	return (this == nil && that == nil) ||
		this != nil && that != nil &&
			this.Int64 == that.Int64 &&
			((this.StringPtr == nil && that.StringPtr == nil) || (this.StringPtr != nil && that.StringPtr != nil && *(this.StringPtr) == *(that.StringPtr))) &&
			this.Foo.Equal(that.Foo)
}