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Enable fixed point u128 (#6214)

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* Add fixed u128.

* remove move

* Change sat_from_integer impl.

* checked_pow is always positive

* Revert.

* rename fixed file

* Rename to FixedI

* rename fixed file

* Add newline.

* Use Multiplier in impls.

* Renames negate() to saturating_negate().

* Uncomment test.

* Add Signed to macro.

* Add some tests for Saturating trait.
This commit is contained in:
Marcio Diaz
2020-06-06 13:04:39 +02:00
committed by GitHub
parent 0761a8e0c3
commit 7c051caa42
11 changed files with 424 additions and 342 deletions
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substrate/frame/transaction-payment/src/lib.rs
+11 -9
View File
@@ -44,7 +44,7 @@ use frame_support::{
dispatch::DispatchResult,
};
use sp_runtime::{
Fixed128, FixedPointNumber, FixedPointOperand,
FixedI128, FixedPointNumber, FixedPointOperand,
transaction_validity::{
TransactionPriority, ValidTransaction, InvalidTransaction, TransactionValidityError,
TransactionValidity,
@@ -56,7 +56,9 @@ use sp_runtime::{
};
use pallet_transaction_payment_rpc_runtime_api::RuntimeDispatchInfo;
type Multiplier = Fixed128;
/// Fee multiplier.
pub type Multiplier = FixedI128;
type BalanceOf<T> =
<<T as Trait>::Currency as Currency<<T as frame_system::Trait>::AccountId>>::Balance;
type NegativeImbalanceOf<T> =
@@ -617,7 +619,7 @@ mod tests {
.execute_with(||
{
let len = 10;
NextFeeMultiplier::put(Fixed128::saturating_from_rational(1, 2));
NextFeeMultiplier::put(Multiplier::saturating_from_rational(1, 2));
let pre = ChargeTransactionPayment::<Runtime>::from(5 /* tipped */)
.pre_dispatch(&2, CALL, &info_from_weight(100), len)
@@ -705,7 +707,7 @@ mod tests {
.execute_with(||
{
// all fees should be x1.5
NextFeeMultiplier::put(Fixed128::saturating_from_rational(1, 2));
NextFeeMultiplier::put(Multiplier::saturating_from_rational(1, 2));
let len = 10;
assert!(
@@ -733,7 +735,7 @@ mod tests {
.execute_with(||
{
// all fees should be x1.5
NextFeeMultiplier::put(Fixed128::saturating_from_rational(1, 2));
NextFeeMultiplier::put(Multiplier::saturating_from_rational(1, 2));
assert_eq!(
TransactionPayment::query_info(xt, len),
@@ -762,7 +764,7 @@ mod tests {
.execute_with(||
{
// Next fee multiplier is zero
assert_eq!(NextFeeMultiplier::get(), Fixed128::saturating_from_integer(0));
assert_eq!(NextFeeMultiplier::get(), Multiplier::saturating_from_integer(0));
// Tip only, no fees works
let dispatch_info = DispatchInfo {
@@ -802,7 +804,7 @@ mod tests {
.execute_with(||
{
// Add a next fee multiplier
NextFeeMultiplier::put(Fixed128::saturating_from_rational(1, 2)); // = 1/2 = .5
NextFeeMultiplier::put(Multiplier::saturating_from_rational(1, 2)); // = 1/2 = .5
// Base fee is unaffected by multiplier
let dispatch_info = DispatchInfo {
weight: 0,
@@ -835,7 +837,7 @@ mod tests {
.execute_with(||
{
// Add a next fee multiplier
NextFeeMultiplier::put(Fixed128::saturating_from_rational(-1, 2)); // = -1/2 = -.5
NextFeeMultiplier::put(Multiplier::saturating_from_rational(-1, 2)); // = -1/2 = -.5
// Base fee is unaffected by multiplier
let dispatch_info = DispatchInfo {
weight: 0,
@@ -990,7 +992,7 @@ mod tests {
let len = 10;
let tip = 5;
NextFeeMultiplier::put(Fixed128::saturating_from_rational(1, 4));
NextFeeMultiplier::put(Multiplier::saturating_from_rational(1, 4));
let pre = ChargeTransactionPayment::<Runtime>::from(tip)
.pre_dispatch(&2, CALL, &info, len)