refactor!: create math go sub module

errors/CHANGELOG.md

@@ -15,19 +15,14 @@ Change log entries are to be added to the Unreleased section under the
 appropriate stanza (see below). Each entry should ideally include a tag and
 the Github issue reference in the following format:
 
-* (<tag>) \#<issue-number> message
-
-The issue numbers will later be link-ified during the release process so you do
-not have to worry about including a link manually, but you can if you wish.
+* (<tag>) [#<issue-number>] Changelog message.
 
 Types of changes (Stanzas):
 
 "Features" for new features.
 "Improvements" for changes in existing functionality.
 "Deprecated" for soon-to-be removed features.
 "Bug Fixes" for any bug fixes.
-"Client Breaking" for breaking Protobuf, gRPC and REST routes used by end-users.
-"CLI Breaking" for breaking CLI commands.
 "API Breaking" for breaking exported APIs used by developers building on SDK.
 Ref: https://keepachangelog.com/en/1.0.0/
 -->

math/CHANGELOG.md

@@ -0,0 +1,32 @@
+<!--
+Guiding Principles:
+
+Changelogs are for humans, not machines.
+There should be an entry for every single version.
+The same types of changes should be grouped.
+Versions and sections should be linkable.
+The latest version comes first.
+The release date of each version is displayed.
+Mention whether you follow Semantic Versioning.
+
+Usage:
+
+Change log entries are to be added to the Unreleased section under the
+appropriate stanza (see below). Each entry should ideally include a tag and
+the Github issue reference in the following format:
+
+* (<tag>) [#<issue-number>] Changelog message.
+
+Types of changes (Stanzas):
+
+"Features" for new features.
+"Improvements" for changes in existing functionality.
+"Deprecated" for soon-to-be removed features.
+"Bug Fixes" for any bug fixes.
+"API Breaking" for breaking exported APIs used by developers building on SDK.
+Ref: https://keepachangelog.com/en/1.0.0/
+-->
+
+# Changelog
+
+## [Unreleased]

math/doc.go

@@ -0,0 +1,6 @@
+/*
+Package math implements custom Cosmos SDK math types used for arithmetic
+operations. Signed and unsigned integer types utilize Golang's standard library
+big integers types, having a maximum bit length of 256 bits.
+*/
+package math

math/go.mod

@@ -0,0 +1,11 @@
+module github.com/cosmos/cosmos-sdk/math
+
+go 1.18
+
+require github.com/stretchr/testify v1.7.0
+
+require (
+	github.com/davecgh/go-spew v1.1.0 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c // indirect
+)

math/go.sum

@@ -0,0 +1,11 @@
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

types/int.go → math/int.go

@@ -1,12 +1,11 @@
-package types
+package math
 
 import (
 	"encoding"
 	"encoding/json"
 	"fmt"
-	"testing"
-
 	"math/big"
+	"testing"
 )
 
 const maxBitLen = 256
@@ -67,7 +66,7 @@ func unmarshalText(i *big.Int, text string) error {
 	return nil
 }
 
-var _ CustomProtobufType = (*Int)(nil)
+var _ customProtobufType = (*Int)(nil)
 
 // Int wraps big.Int with a 257 bit range bound
 // Checks overflow, underflow and division by zero
@@ -151,11 +150,6 @@ func ZeroInt() Int { return Int{big.NewInt(0)} }
 // OneInt returns Int value with one
 func OneInt() Int { return Int{big.NewInt(1)} }
 
-// ToDec converts Int to Dec
-func (i Int) ToDec() Dec {
-	return NewDecFromInt(i)
-}
-
 // Int64 converts Int to int64
 // Panics if the value is out of range
 func (i Int) Int64() int64 {
@@ -437,7 +431,3 @@ func (i *Int) UnmarshalAmino(bz []byte) error { return i.Unmarshal(bz) }
 func IntEq(t *testing.T, exp, got Int) (*testing.T, bool, string, string, string) {
 	return t, exp.Equal(got), "expected:\t%v\ngot:\t\t%v", exp.String(), got.String()
 }
-
-func (ip IntProto) String() string {
-	return ip.Int.String()
-}

types/int_internal_test.go → math/int_internal_test.go

@@ -1,4 +1,4 @@
-package types
+package math
 
 import (
 	"math/big"