mirror of
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synced 2024-11-13 02:12:34 +01:00
Merge branch 'solutions'
This commit is contained in:
commit
9e0b13d96c
17 changed files with 992 additions and 0 deletions
12
README.md
12
README.md
|
@ -24,11 +24,18 @@
|
|||
- Time handling.
|
||||
- Parameterized contracts.
|
||||
|
||||
- [Lecture #4](https://youtu.be/g4lvA14I-Jg)
|
||||
|
||||
- Monads.
|
||||
- The `EmulatorTrace`-monad.
|
||||
- The `Contract`-monad.
|
||||
|
||||
## Code Examples
|
||||
|
||||
- Lecture #1: [English Auction](code/week01)
|
||||
- Lecture #2: [Simple validation](code/week02)
|
||||
- Lecture #3: [Script Context & Parameterized Contracts](code/week03)
|
||||
- Lecture #4: [Monad, Traces & Contracts](code/week04)
|
||||
|
||||
## Exercises
|
||||
|
||||
|
@ -62,6 +69,11 @@
|
|||
- Fix and complete the code in the [Homework1](code/week03/src/Week03/Homework1.hs) module.
|
||||
- Fix and complete the code in the [Homework2](code/week03/src/Week03/Homework2.hs) module.
|
||||
|
||||
- Week #4
|
||||
|
||||
- Implement function `payTrace` in the [Homework](code/week04/src/Week04/Homework.hs) module.
|
||||
- Handle exceptions thrown by `submitTx` in function `payContract` in the same module.
|
||||
|
||||
## Some Plutus Modules
|
||||
|
||||
- [`Language.Marlowe.Semantics`](https://github.com/input-output-hk/plutus/blob/master/marlowe/src/Language/Marlowe/Semantics.hs), contains Marlowe types and semantics.
|
||||
|
|
23
code/week04/.devcontainer/devcontainer.json
Normal file
23
code/week04/.devcontainer/devcontainer.json
Normal file
|
@ -0,0 +1,23 @@
|
|||
{
|
||||
"name": "Plutus Starter Project",
|
||||
"image": "plutus-devcontainer:latest",
|
||||
|
||||
"remoteUser": "plutus",
|
||||
|
||||
"mounts": [
|
||||
// This shares cabal's remote repository state with the host. We don't mount the whole of '.cabal', because
|
||||
// 1. '.cabal/config' contains absolute paths that will only make sense on the host, and
|
||||
// 2. '.cabal/store' is not necessarily portable to different version of cabal etc.
|
||||
"source=${localEnv:HOME}/.cabal/packages,target=/home/plutus/.cabal/packages,type=bind,consistency=cached",
|
||||
],
|
||||
|
||||
"settings": {
|
||||
// Note: don't change from bash so it runs .bashrc
|
||||
"terminal.integrated.shell.linux": "/bin/bash"
|
||||
},
|
||||
|
||||
// IDs of extensions inside container
|
||||
"extensions": [
|
||||
"haskell.haskell"
|
||||
],
|
||||
}
|
1
code/week04/.gitignore
vendored
Normal file
1
code/week04/.gitignore
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
dist-newstyle/
|
201
code/week04/LICENSE
Normal file
201
code/week04/LICENSE
Normal file
|
@ -0,0 +1,201 @@
|
|||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
|
||||
|
||||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||
|
||||
1. Definitions.
|
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|
||||
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|
24
code/week04/app/hello.hs
Normal file
24
code/week04/app/hello.hs
Normal file
|
@ -0,0 +1,24 @@
|
|||
-- public static int foo() {
|
||||
-- ...
|
||||
-- }
|
||||
--
|
||||
-- ...
|
||||
--
|
||||
-- ... foo() ... foo()
|
||||
|
||||
-- foo :: Int
|
||||
-- foo = ...
|
||||
|
||||
-- let x = foo in ... x ... x ...
|
||||
-- ... foo ... foo ...
|
||||
|
||||
-- foo :: IO Int
|
||||
-- foo = ...
|
||||
|
||||
main :: IO ()
|
||||
main = bar -- putStrLn "Hello, world!"
|
||||
|
||||
bar :: IO ()
|
||||
bar = getLine >>= \s ->
|
||||
getLine >>= \t ->
|
||||
putStrLn (s ++ t)
|
193
code/week04/cabal.project
Normal file
193
code/week04/cabal.project
Normal file
|
@ -0,0 +1,193 @@
|
|||
index-state: 2021-07-07T00:00:00Z
|
||||
|
||||
packages: ./.
|
||||
|
||||
-- You never, ever, want this.
|
||||
write-ghc-environment-files: never
|
||||
|
||||
-- Always build tests and benchmarks.
|
||||
tests: true
|
||||
benchmarks: true
|
||||
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/input-output-hk/plutus.git
|
||||
subdir:
|
||||
freer-extras
|
||||
playground-common
|
||||
plutus-chain-index
|
||||
plutus-core
|
||||
plutus-contract
|
||||
plutus-ledger
|
||||
plutus-ledger-api
|
||||
plutus-tx
|
||||
plutus-tx-plugin
|
||||
prettyprinter-configurable
|
||||
quickcheck-dynamic
|
||||
word-array
|
||||
tag: 2fbb7abb22138a434bb6c4f663a81e9b9dc51e98
|
||||
|
||||
-- The following sections are copied from the 'plutus' repository cabal.project at the revision
|
||||
-- given above.
|
||||
-- This is necessary because the 'plutus' libraries depend on a number of other libraries which are
|
||||
-- not on Hackage, and so need to be pulled in as `source-repository-package`s themselves. Make sure to
|
||||
-- re-update this section from the template when you do an upgrade.
|
||||
|
||||
-- This is also needed so evenful-sql-common will build with a
|
||||
-- newer version of persistent. See stack.yaml for the mirrored
|
||||
-- configuration.
|
||||
package eventful-sql-common
|
||||
ghc-options: -XDerivingStrategies -XStandaloneDeriving -XUndecidableInstances -XDataKinds -XFlexibleInstances -XMultiParamTypeClasses
|
||||
|
||||
allow-newer:
|
||||
-- Pins to an old version of Template Haskell, unclear if/when it will be updated
|
||||
size-based:template-haskell
|
||||
|
||||
-- The following two dependencies are needed by plutus.
|
||||
, eventful-sql-common:persistent
|
||||
, eventful-sql-common:persistent-template
|
||||
, ouroboros-consensus-byron:formatting
|
||||
, beam-core:aeson
|
||||
, beam-sqlite:aeson
|
||||
, beam-sqlite:dlist
|
||||
, beam-migrate:aeson
|
||||
|
||||
constraints:
|
||||
-- big breaking change here, inline-r doens't have an upper bound
|
||||
singletons < 3.0
|
||||
-- breaks eventful even more than it already was
|
||||
, persistent-template < 2.12
|
||||
-- bizarre issue: in earlier versions they define their own 'GEq', in newer
|
||||
-- ones they reuse the one from 'some', but there isn't e.g. a proper version
|
||||
-- constraint from dependent-sum-template (which is the library we actually use).
|
||||
, dependent-sum > 0.6.2.0
|
||||
|
||||
-- See the note on nix/pkgs/default.nix:agdaPackages for why this is here.
|
||||
-- (NOTE this will change to ieee754 in newer versions of nixpkgs).
|
||||
extra-packages: ieee, filemanip
|
||||
|
||||
-- Drops an instance breaking our code. Should be released to Hackage eventually.
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/Quid2/flat.git
|
||||
tag: 95e5d7488451e43062ca84d5376b3adcc465f1cd
|
||||
|
||||
-- Needs some patches, but upstream seems to be fairly dead (no activity in > 1 year)
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/shmish111/purescript-bridge.git
|
||||
tag: 6a92d7853ea514be8b70bab5e72077bf5a510596
|
||||
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/shmish111/servant-purescript.git
|
||||
tag: a76104490499aa72d40c2790d10e9383e0dbde63
|
||||
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/input-output-hk/cardano-crypto.git
|
||||
tag: ce8f1934e4b6252084710975bd9bbc0a4648ece4
|
||||
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/input-output-hk/cardano-base
|
||||
tag: a715c7f420770b70bbe95ca51d3dec83866cb1bd
|
||||
subdir:
|
||||
binary
|
||||
binary/test
|
||||
slotting
|
||||
cardano-crypto-class
|
||||
cardano-crypto-praos
|
||||
cardano-crypto-tests
|
||||
strict-containers
|
||||
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/input-output-hk/cardano-prelude
|
||||
tag: fd773f7a58412131512b9f694ab95653ac430852
|
||||
subdir:
|
||||
cardano-prelude
|
||||
cardano-prelude-test
|
||||
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/input-output-hk/ouroboros-network
|
||||
tag: e338f2cf8e1078fbda9555dd2b169c6737ef6774
|
||||
subdir:
|
||||
monoidal-synchronisation
|
||||
typed-protocols
|
||||
typed-protocols-examples
|
||||
ouroboros-network
|
||||
ouroboros-network-testing
|
||||
ouroboros-network-framework
|
||||
ouroboros-consensus
|
||||
ouroboros-consensus-byron
|
||||
ouroboros-consensus-cardano
|
||||
ouroboros-consensus-shelley
|
||||
io-sim
|
||||
io-classes
|
||||
network-mux
|
||||
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/input-output-hk/iohk-monitoring-framework
|
||||
tag: 34abfb7f4f5610cabb45396e0496472446a0b2ca
|
||||
subdir:
|
||||
iohk-monitoring
|
||||
tracer-transformers
|
||||
contra-tracer
|
||||
plugins/backend-aggregation
|
||||
plugins/backend-ekg
|
||||
plugins/backend-monitoring
|
||||
plugins/backend-trace-forwarder
|
||||
plugins/scribe-systemd
|
||||
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/input-output-hk/cardano-ledger-specs
|
||||
tag: ad951f017b5da37a622fb91b2ee2954d5eba201d
|
||||
subdir:
|
||||
byron/chain/executable-spec
|
||||
byron/crypto
|
||||
byron/crypto/test
|
||||
byron/ledger/executable-spec
|
||||
byron/ledger/impl
|
||||
byron/ledger/impl/test
|
||||
semantics/executable-spec
|
||||
semantics/small-steps-test
|
||||
shelley/chain-and-ledger/dependencies/non-integer
|
||||
shelley/chain-and-ledger/executable-spec
|
||||
shelley/chain-and-ledger/shelley-spec-ledger-test
|
||||
shelley-ma/impl
|
||||
cardano-ledger-core
|
||||
alonzo/impl
|
||||
|
||||
-- A lot of plutus dependencies have to be synchronized with the dependencies of
|
||||
-- cardano-node. If you update cardano-node, please make sure that all dependencies
|
||||
-- of cardano-node are also updated.
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/input-output-hk/cardano-node.git
|
||||
tag: f3ef4ed72894499160f2330b91572a159005c148
|
||||
subdir:
|
||||
cardano-api
|
||||
cardano-node
|
||||
cardano-cli
|
||||
cardano-config
|
||||
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/input-output-hk/Win32-network
|
||||
tag: 94153b676617f8f33abe8d8182c37377d2784bd1
|
||||
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/input-output-hk/hedgehog-extras
|
||||
tag: 8bcd3c9dc22cc44f9fcfe161f4638a384fc7a187
|
||||
|
||||
-- The following dependencies are not mirrored in the
|
||||
-- stack.yaml file, but they are needed regardless by cabal.
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/input-output-hk/goblins
|
||||
tag: cde90a2b27f79187ca8310b6549331e59595e7ba
|
6
code/week04/hie.yaml
Normal file
6
code/week04/hie.yaml
Normal file
|
@ -0,0 +1,6 @@
|
|||
cradle:
|
||||
cabal:
|
||||
- path: "./src"
|
||||
component: "lib:plutus-pioneer-program-week04"
|
||||
- path: "./app/hello.hs"
|
||||
component: "exe:hello"
|
42
code/week04/plutus-pioneer-program-week04.cabal
Normal file
42
code/week04/plutus-pioneer-program-week04.cabal
Normal file
|
@ -0,0 +1,42 @@
|
|||
Cabal-Version: 2.4
|
||||
Name: plutus-pioneer-program-week04
|
||||
Version: 0.1.0.0
|
||||
Author: Lars Bruenjes
|
||||
Maintainer: brunjlar@gmail.com
|
||||
Build-Type: Simple
|
||||
Copyright: © 2021 Lars Bruenjes
|
||||
License: Apache-2.0
|
||||
License-files: LICENSE
|
||||
|
||||
library
|
||||
hs-source-dirs: src
|
||||
exposed-modules: Week04.Contract
|
||||
, Week04.Either
|
||||
, Week04.Homework
|
||||
, Week04.Maybe
|
||||
, Week04.Monad
|
||||
, Week04.Solution
|
||||
, Week04.Trace
|
||||
, Week04.Writer
|
||||
other-modules: Week04.Vesting
|
||||
build-depends: aeson
|
||||
, base ^>=4.14.1.0
|
||||
, containers
|
||||
, data-default
|
||||
, freer-extras
|
||||
, playground-common
|
||||
, plutus-contract
|
||||
, plutus-ledger
|
||||
, plutus-ledger-api
|
||||
, plutus-tx-plugin
|
||||
, plutus-tx
|
||||
, text
|
||||
default-language: Haskell2010
|
||||
ghc-options: -Wall -fobject-code -fno-ignore-interface-pragmas -fno-omit-interface-pragmas -fno-strictness -fno-spec-constr -fno-specialise
|
||||
|
||||
executable hello
|
||||
hs-source-dirs: app
|
||||
main-is: hello.hs
|
||||
build-depends: base ^>=4.14.1.0
|
||||
default-language: Haskell2010
|
||||
ghc-options: -Wall -O2
|
84
code/week04/src/Week04/Contract.hs
Normal file
84
code/week04/src/Week04/Contract.hs
Normal file
|
@ -0,0 +1,84 @@
|
|||
{-# LANGUAGE OverloadedStrings #-}
|
||||
{-# LANGUAGE TypeApplications #-}
|
||||
{-# LANGUAGE DataKinds #-}
|
||||
{-# LANGUAGE TypeOperators #-}
|
||||
|
||||
module Week04.Contract where
|
||||
|
||||
import Control.Monad.Freer.Extras as Extras
|
||||
import Data.Functor (void)
|
||||
import Data.Text (Text, unpack)
|
||||
import Data.Void (Void)
|
||||
import Plutus.Contract as Contract
|
||||
import Plutus.Trace.Emulator as Emulator
|
||||
import Wallet.Emulator.Wallet
|
||||
|
||||
-- Contract w s e a
|
||||
-- EmulatorTrace a
|
||||
|
||||
myContract1 :: Contract () Empty Text ()
|
||||
myContract1 = do
|
||||
void $ Contract.throwError "BOOM!"
|
||||
Contract.logInfo @String "hello from the contract"
|
||||
|
||||
myTrace1 :: EmulatorTrace ()
|
||||
myTrace1 = void $ activateContractWallet (Wallet 1) myContract1
|
||||
|
||||
test1 :: IO ()
|
||||
test1 = runEmulatorTraceIO myTrace1
|
||||
|
||||
myContract2 :: Contract () Empty Void ()
|
||||
myContract2 = Contract.handleError
|
||||
(\err -> Contract.logError $ "caught: " ++ unpack err)
|
||||
myContract1
|
||||
|
||||
myTrace2 :: EmulatorTrace ()
|
||||
myTrace2 = void $ activateContractWallet (Wallet 1) myContract2
|
||||
|
||||
test2 :: IO ()
|
||||
test2 = runEmulatorTraceIO myTrace2
|
||||
|
||||
type MySchema = Endpoint "foo" Int .\/ Endpoint "bar" String
|
||||
|
||||
myContract3 :: Contract () MySchema Text ()
|
||||
myContract3 = do
|
||||
n <- endpoint @"foo"
|
||||
Contract.logInfo n
|
||||
s <- endpoint @"bar"
|
||||
Contract.logInfo s
|
||||
|
||||
myTrace3 :: EmulatorTrace ()
|
||||
myTrace3 = do
|
||||
h <- activateContractWallet (Wallet 1) myContract3
|
||||
callEndpoint @"foo" h 42
|
||||
callEndpoint @"bar" h "Haskell"
|
||||
|
||||
test3 :: IO ()
|
||||
test3 = runEmulatorTraceIO myTrace3
|
||||
|
||||
myContract4 :: Contract [Int] Empty Text ()
|
||||
myContract4 = do
|
||||
void $ Contract.waitNSlots 10
|
||||
tell [1]
|
||||
void $ Contract.waitNSlots 10
|
||||
tell [2]
|
||||
void $ Contract.waitNSlots 10
|
||||
|
||||
myTrace4 :: EmulatorTrace ()
|
||||
myTrace4 = do
|
||||
h <- activateContractWallet (Wallet 1) myContract4
|
||||
|
||||
void $ Emulator.waitNSlots 5
|
||||
xs <- observableState h
|
||||
Extras.logInfo $ show xs
|
||||
|
||||
void $ Emulator.waitNSlots 10
|
||||
ys <- observableState h
|
||||
Extras.logInfo $ show ys
|
||||
|
||||
void $ Emulator.waitNSlots 10
|
||||
zs <- observableState h
|
||||
Extras.logInfo $ show zs
|
||||
|
||||
test4 :: IO ()
|
||||
test4 = runEmulatorTraceIO myTrace4
|
31
code/week04/src/Week04/Either.hs
Normal file
31
code/week04/src/Week04/Either.hs
Normal file
|
@ -0,0 +1,31 @@
|
|||
module Week04.Either where
|
||||
|
||||
import Text.Read (readMaybe)
|
||||
import Week04.Monad
|
||||
|
||||
readEither :: Read a => String -> Either String a
|
||||
readEither s = case readMaybe s of
|
||||
Nothing -> Left $ "can't parse: " ++ s
|
||||
Just a -> Right a
|
||||
|
||||
foo :: String -> String -> String -> Either String Int
|
||||
foo x y z = case readEither x of
|
||||
Left err -> Left err
|
||||
Right k -> case readEither y of
|
||||
Left err -> Left err
|
||||
Right l -> case readEither z of
|
||||
Left err -> Left err
|
||||
Right m -> Right (k + l + m)
|
||||
|
||||
bindEither :: Either String a -> (a -> Either String b) -> Either String b
|
||||
bindEither (Left err) _ = Left err
|
||||
bindEither (Right x) f = f x
|
||||
|
||||
foo' :: String -> String -> String -> Either String Int
|
||||
foo' x y z = readEither x `bindEither` \k ->
|
||||
readEither y `bindEither` \l ->
|
||||
readEither z `bindEither` \m ->
|
||||
Right (k + l + m)
|
||||
|
||||
foo'' :: String -> String -> String -> Either String Int
|
||||
foo'' x y z = threeInts (readEither x) (readEither y) (readEither z)
|
44
code/week04/src/Week04/Homework.hs
Normal file
44
code/week04/src/Week04/Homework.hs
Normal file
|
@ -0,0 +1,44 @@
|
|||
{-# LANGUAGE DataKinds #-}
|
||||
{-# LANGUAGE DeriveAnyClass #-}
|
||||
{-# LANGUAGE DeriveGeneric #-}
|
||||
{-# LANGUAGE OverloadedStrings #-}
|
||||
{-# LANGUAGE TypeApplications #-}
|
||||
{-# LANGUAGE TypeOperators #-}
|
||||
|
||||
module Week04.Homework where
|
||||
|
||||
import Data.Aeson (FromJSON, ToJSON)
|
||||
import Data.Functor (void)
|
||||
import Data.Text (Text)
|
||||
import GHC.Generics (Generic)
|
||||
import Ledger
|
||||
import Ledger.Ada as Ada
|
||||
import Ledger.Constraints as Constraints
|
||||
import Plutus.Contract as Contract
|
||||
import Plutus.Trace.Emulator as Emulator
|
||||
|
||||
data PayParams = PayParams
|
||||
{ ppRecipient :: PubKeyHash
|
||||
, ppLovelace :: Integer
|
||||
} deriving (Show, Generic, FromJSON, ToJSON)
|
||||
|
||||
type PaySchema = Endpoint "pay" PayParams
|
||||
|
||||
payContract :: Contract () PaySchema Text ()
|
||||
payContract = do
|
||||
pp <- endpoint @"pay"
|
||||
let tx = mustPayToPubKey (ppRecipient pp) $ lovelaceValueOf $ ppLovelace pp
|
||||
void $ submitTx tx
|
||||
payContract
|
||||
|
||||
-- A trace that invokes the pay endpoint of payContract on Wallet 1 twice, each time with Wallet 2 as
|
||||
-- recipient, but with amounts given by the two arguments. There should be a delay of one slot
|
||||
-- after each endpoint call.
|
||||
payTrace :: Integer -> Integer -> EmulatorTrace ()
|
||||
payTrace _ _ = undefined -- IMPLEMENT ME!
|
||||
|
||||
payTest1 :: IO ()
|
||||
payTest1 = runEmulatorTraceIO $ payTrace 1000000 2000000
|
||||
|
||||
payTest2 :: IO ()
|
||||
payTest2 = runEmulatorTraceIO $ payTrace 1000000000 2000000
|
26
code/week04/src/Week04/Maybe.hs
Normal file
26
code/week04/src/Week04/Maybe.hs
Normal file
|
@ -0,0 +1,26 @@
|
|||
module Week04.Maybe where
|
||||
|
||||
import Text.Read (readMaybe)
|
||||
import Week04.Monad
|
||||
|
||||
foo :: String -> String -> String -> Maybe Int
|
||||
foo x y z = case readMaybe x of
|
||||
Nothing -> Nothing
|
||||
Just k -> case readMaybe y of
|
||||
Nothing -> Nothing
|
||||
Just l -> case readMaybe z of
|
||||
Nothing -> Nothing
|
||||
Just m -> Just (k + l + m)
|
||||
|
||||
bindMaybe :: Maybe a -> (a -> Maybe b) -> Maybe b
|
||||
bindMaybe Nothing _ = Nothing
|
||||
bindMaybe (Just x) f = f x
|
||||
|
||||
foo' :: String -> String -> String -> Maybe Int
|
||||
foo' x y z = readMaybe x `bindMaybe` \k ->
|
||||
readMaybe y `bindMaybe` \l ->
|
||||
readMaybe z `bindMaybe` \m ->
|
||||
Just (k + l + m)
|
||||
|
||||
foo'' :: String -> String -> String -> Maybe Int
|
||||
foo'' x y z = threeInts (readMaybe x) (readMaybe y) (readMaybe z)
|
26
code/week04/src/Week04/Monad.hs
Normal file
26
code/week04/src/Week04/Monad.hs
Normal file
|
@ -0,0 +1,26 @@
|
|||
module Week04.Monad where
|
||||
|
||||
-- (>>=) :: IO a -> (a -> IO b) -> IO b
|
||||
-- bindMaybe :: Maybe a -> (a -> Maybe b) -> Maybe b
|
||||
-- bindEither :: Either String a -> (a -> Either String b) -> Either String b
|
||||
-- bindWriter :: Writer a -> (a -> Writer b) -> Writer b
|
||||
--
|
||||
-- return :: a -> IO a
|
||||
-- Just :: a -> Maybe a
|
||||
-- Right :: a -> Either String a
|
||||
-- (\a -> Writer a []) :: a -> Writer a
|
||||
|
||||
threeInts :: Monad m => m Int -> m Int -> m Int -> m Int
|
||||
threeInts mx my mz =
|
||||
mx >>= \k ->
|
||||
my >>= \l ->
|
||||
mz >>= \m ->
|
||||
let s = k + l + m in return s
|
||||
|
||||
threeInts' :: Monad m => m Int -> m Int -> m Int -> m Int
|
||||
threeInts' mx my mz = do
|
||||
k <- mx
|
||||
l <- my
|
||||
m <- mz
|
||||
let s = k + l + m
|
||||
return s
|
54
code/week04/src/Week04/Solution.hs
Normal file
54
code/week04/src/Week04/Solution.hs
Normal file
|
@ -0,0 +1,54 @@
|
|||
{-# LANGUAGE DataKinds #-}
|
||||
{-# LANGUAGE DeriveAnyClass #-}
|
||||
{-# LANGUAGE DeriveGeneric #-}
|
||||
{-# LANGUAGE OverloadedStrings #-}
|
||||
{-# LANGUAGE TypeApplications #-}
|
||||
{-# LANGUAGE TypeOperators #-}
|
||||
|
||||
module Week04.Solution where
|
||||
|
||||
import Data.Aeson (FromJSON, ToJSON)
|
||||
import Data.Functor (void)
|
||||
import Data.Text (Text, unpack)
|
||||
import GHC.Generics (Generic)
|
||||
import Ledger
|
||||
import Ledger.Ada as Ada
|
||||
import Ledger.Constraints as Constraints
|
||||
import Plutus.Contract as Contract
|
||||
import Plutus.Trace.Emulator as Emulator
|
||||
import Wallet.Emulator.Wallet
|
||||
|
||||
data PayParams = PayParams
|
||||
{ ppRecipient :: PubKeyHash
|
||||
, ppLovelace :: Integer
|
||||
} deriving (Show, Generic, FromJSON, ToJSON)
|
||||
|
||||
type PaySchema = Endpoint "pay" PayParams
|
||||
|
||||
payContract :: Contract () PaySchema Text ()
|
||||
payContract = do
|
||||
pp <- endpoint @"pay"
|
||||
let tx = mustPayToPubKey (ppRecipient pp) $ lovelaceValueOf $ ppLovelace pp
|
||||
handleError (\err -> Contract.logInfo $ "caught error: " ++ unpack err) $ void $ submitTx tx
|
||||
payContract
|
||||
|
||||
payTrace :: Integer -> Integer -> EmulatorTrace ()
|
||||
payTrace x y = do
|
||||
h <- activateContractWallet (Wallet 1) payContract
|
||||
let pkh = pubKeyHash $ walletPubKey $ Wallet 2
|
||||
callEndpoint @"pay" h $ PayParams
|
||||
{ ppRecipient = pkh
|
||||
, ppLovelace = x
|
||||
}
|
||||
void $ Emulator.waitNSlots 1
|
||||
callEndpoint @"pay" h $ PayParams
|
||||
{ ppRecipient = pkh
|
||||
, ppLovelace = y
|
||||
}
|
||||
void $ Emulator.waitNSlots 1
|
||||
|
||||
payTest1 :: IO ()
|
||||
payTest1 = runEmulatorTraceIO $ payTrace 1000000 2000000
|
||||
|
||||
payTest2 :: IO ()
|
||||
payTest2 = runEmulatorTraceIO $ payTrace 1000000000 2000000
|
34
code/week04/src/Week04/Trace.hs
Normal file
34
code/week04/src/Week04/Trace.hs
Normal file
|
@ -0,0 +1,34 @@
|
|||
{-# LANGUAGE TypeApplications #-}
|
||||
{-# LANGUAGE DataKinds #-}
|
||||
|
||||
module Week04.Trace where
|
||||
|
||||
import Control.Monad.Freer.Extras as Extras
|
||||
import Data.Default (Default (..))
|
||||
import Data.Functor (void)
|
||||
import Ledger
|
||||
import Ledger.TimeSlot
|
||||
import Plutus.Trace.Emulator as Emulator
|
||||
import Wallet.Emulator.Wallet
|
||||
|
||||
import Week04.Vesting
|
||||
|
||||
-- Contract w s e a
|
||||
-- EmulatorTrace a
|
||||
|
||||
test :: IO ()
|
||||
test = runEmulatorTraceIO myTrace
|
||||
|
||||
myTrace :: EmulatorTrace ()
|
||||
myTrace = do
|
||||
h1 <- activateContractWallet (Wallet 1) endpoints
|
||||
h2 <- activateContractWallet (Wallet 2) endpoints
|
||||
callEndpoint @"give" h1 $ GiveParams
|
||||
{ gpBeneficiary = pubKeyHash $ walletPubKey $ Wallet 2
|
||||
, gpDeadline = slotToBeginPOSIXTime def 20
|
||||
, gpAmount = 10000000
|
||||
}
|
||||
void $ waitUntilSlot 20
|
||||
callEndpoint @"grab" h2 ()
|
||||
s <- waitNSlots 1
|
||||
Extras.logInfo $ "reached " ++ show s
|
138
code/week04/src/Week04/Vesting.hs
Normal file
138
code/week04/src/Week04/Vesting.hs
Normal file
|
@ -0,0 +1,138 @@
|
|||
{-# LANGUAGE DataKinds #-}
|
||||
{-# LANGUAGE DeriveAnyClass #-}
|
||||
{-# LANGUAGE DeriveGeneric #-}
|
||||
{-# LANGUAGE FlexibleContexts #-}
|
||||
{-# LANGUAGE NoImplicitPrelude #-}
|
||||
{-# LANGUAGE OverloadedStrings #-}
|
||||
{-# LANGUAGE ScopedTypeVariables #-}
|
||||
{-# LANGUAGE TemplateHaskell #-}
|
||||
{-# LANGUAGE TypeApplications #-}
|
||||
{-# LANGUAGE TypeFamilies #-}
|
||||
{-# LANGUAGE TypeOperators #-}
|
||||
|
||||
{-# OPTIONS_GHC -fno-warn-unused-imports #-}
|
||||
|
||||
module Week04.Vesting where
|
||||
|
||||
import Control.Monad hiding (fmap)
|
||||
import Data.Aeson (ToJSON, FromJSON)
|
||||
import Data.Map as Map
|
||||
import Data.Text (Text)
|
||||
import Data.Void (Void)
|
||||
import GHC.Generics (Generic)
|
||||
import Plutus.Contract
|
||||
import PlutusTx (Data (..))
|
||||
import qualified PlutusTx
|
||||
import PlutusTx.Prelude hiding (Semigroup(..), unless)
|
||||
import Ledger hiding (singleton)
|
||||
import Ledger.Constraints as Constraints
|
||||
import qualified Ledger.Typed.Scripts as Scripts
|
||||
import Ledger.Ada as Ada
|
||||
import Playground.Contract (printJson, printSchemas, ensureKnownCurrencies, stage, ToSchema)
|
||||
import Playground.TH (mkKnownCurrencies, mkSchemaDefinitions)
|
||||
import Playground.Types (KnownCurrency (..))
|
||||
import Prelude (IO, Semigroup (..), Show (..), String)
|
||||
import Text.Printf (printf)
|
||||
|
||||
data VestingDatum = VestingDatum
|
||||
{ beneficiary :: PubKeyHash
|
||||
, deadline :: POSIXTime
|
||||
} deriving Show
|
||||
|
||||
PlutusTx.unstableMakeIsData ''VestingDatum
|
||||
|
||||
{-# INLINABLE mkValidator #-}
|
||||
mkValidator :: VestingDatum -> () -> ScriptContext -> Bool
|
||||
mkValidator dat () ctx = traceIfFalse "beneficiary's signature missing" signedByBeneficiary &&
|
||||
traceIfFalse "deadline not reached" deadlineReached
|
||||
where
|
||||
info :: TxInfo
|
||||
info = scriptContextTxInfo ctx
|
||||
|
||||
signedByBeneficiary :: Bool
|
||||
signedByBeneficiary = txSignedBy info $ beneficiary dat
|
||||
|
||||
deadlineReached :: Bool
|
||||
deadlineReached = contains (from $ deadline dat) $ txInfoValidRange info
|
||||
|
||||
data Vesting
|
||||
instance Scripts.ValidatorTypes Vesting where
|
||||
type instance DatumType Vesting = VestingDatum
|
||||
type instance RedeemerType Vesting = ()
|
||||
|
||||
typedValidator :: Scripts.TypedValidator Vesting
|
||||
typedValidator = Scripts.mkTypedValidator @Vesting
|
||||
$$(PlutusTx.compile [|| mkValidator ||])
|
||||
$$(PlutusTx.compile [|| wrap ||])
|
||||
where
|
||||
wrap = Scripts.wrapValidator @VestingDatum @()
|
||||
|
||||
validator :: Validator
|
||||
validator = Scripts.validatorScript typedValidator
|
||||
|
||||
valHash :: Ledger.ValidatorHash
|
||||
valHash = Scripts.validatorHash typedValidator
|
||||
|
||||
scrAddress :: Ledger.Address
|
||||
scrAddress = scriptAddress validator
|
||||
|
||||
data GiveParams = GiveParams
|
||||
{ gpBeneficiary :: !PubKeyHash
|
||||
, gpDeadline :: !POSIXTime
|
||||
, gpAmount :: !Integer
|
||||
} deriving (Generic, ToJSON, FromJSON, ToSchema)
|
||||
|
||||
type VestingSchema =
|
||||
Endpoint "give" GiveParams
|
||||
.\/ Endpoint "grab" ()
|
||||
|
||||
give :: AsContractError e => GiveParams -> Contract w s e ()
|
||||
give gp = do
|
||||
let dat = VestingDatum
|
||||
{ beneficiary = gpBeneficiary gp
|
||||
, deadline = gpDeadline gp
|
||||
}
|
||||
tx = mustPayToTheScript dat $ Ada.lovelaceValueOf $ gpAmount gp
|
||||
ledgerTx <- submitTxConstraints typedValidator tx
|
||||
void $ awaitTxConfirmed $ txId ledgerTx
|
||||
logInfo @String $ printf "made a gift of %d lovelace to %s with deadline %s"
|
||||
(gpAmount gp)
|
||||
(show $ gpBeneficiary gp)
|
||||
(show $ gpDeadline gp)
|
||||
|
||||
grab :: forall w s e. AsContractError e => Contract w s e ()
|
||||
grab = do
|
||||
now <- currentTime
|
||||
pkh <- pubKeyHash <$> ownPubKey
|
||||
utxos <- Map.filter (isSuitable pkh now) <$> utxoAt scrAddress
|
||||
if Map.null utxos
|
||||
then logInfo @String $ "no gifts available"
|
||||
else do
|
||||
let orefs = fst <$> Map.toList utxos
|
||||
lookups = Constraints.unspentOutputs utxos <>
|
||||
Constraints.otherScript validator
|
||||
tx :: TxConstraints Void Void
|
||||
tx = mconcat [mustSpendScriptOutput oref $ Redeemer $ PlutusTx.toBuiltinData () | oref <- orefs] <>
|
||||
mustValidateIn (from now)
|
||||
ledgerTx <- submitTxConstraintsWith @Void lookups tx
|
||||
void $ awaitTxConfirmed $ txId ledgerTx
|
||||
logInfo @String $ "collected gifts"
|
||||
where
|
||||
isSuitable :: PubKeyHash -> POSIXTime -> TxOutTx -> Bool
|
||||
isSuitable pkh now o = case txOutDatumHash $ txOutTxOut o of
|
||||
Nothing -> False
|
||||
Just h -> case Map.lookup h $ txData $ txOutTxTx o of
|
||||
Nothing -> False
|
||||
Just (Datum e) -> case PlutusTx.fromBuiltinData e of
|
||||
Nothing -> False
|
||||
Just d -> beneficiary d == pkh && deadline d <= now
|
||||
|
||||
endpoints :: Contract () VestingSchema Text ()
|
||||
endpoints = (give' `select` grab') >> endpoints
|
||||
where
|
||||
give' = endpoint @"give" >>= give
|
||||
grab' = endpoint @"grab" >> grab
|
||||
|
||||
mkSchemaDefinitions ''VestingSchema
|
||||
|
||||
mkKnownCurrencies []
|
53
code/week04/src/Week04/Writer.hs
Normal file
53
code/week04/src/Week04/Writer.hs
Normal file
|
@ -0,0 +1,53 @@
|
|||
module Week04.Writer where
|
||||
|
||||
import Control.Monad
|
||||
import Week04.Monad
|
||||
|
||||
data Writer a = Writer a [String]
|
||||
deriving Show
|
||||
|
||||
number :: Int -> Writer Int
|
||||
number n = Writer n $ ["number: " ++ show n]
|
||||
|
||||
tell :: [String] -> Writer ()
|
||||
tell = Writer ()
|
||||
|
||||
foo :: Writer Int -> Writer Int -> Writer Int -> Writer Int
|
||||
foo (Writer k xs) (Writer l ys) (Writer m zs) =
|
||||
let
|
||||
s = k + l + m
|
||||
Writer _ us = tell ["sum: " ++ show s]
|
||||
in
|
||||
Writer s $ xs ++ ys ++ zs ++ us
|
||||
|
||||
bindWriter :: Writer a -> (a -> Writer b) -> Writer b
|
||||
bindWriter (Writer a xs) f =
|
||||
let
|
||||
Writer b ys = f a
|
||||
in
|
||||
Writer b $ xs ++ ys
|
||||
|
||||
foo' :: Writer Int -> Writer Int -> Writer Int -> Writer Int
|
||||
foo' x y z = x `bindWriter` \k ->
|
||||
y `bindWriter` \l ->
|
||||
z `bindWriter` \m ->
|
||||
let s = k + l + m
|
||||
in tell ["sum: " ++ show s] `bindWriter` \_ ->
|
||||
Writer s []
|
||||
|
||||
foo'' :: Writer Int -> Writer Int -> Writer Int -> Writer Int
|
||||
foo'' x y z = do
|
||||
s <- threeInts x y z
|
||||
tell ["sum: " ++ show s]
|
||||
return s
|
||||
|
||||
instance Functor Writer where
|
||||
fmap = liftM
|
||||
|
||||
instance Applicative Writer where
|
||||
pure = return
|
||||
(<*>) = ap
|
||||
|
||||
instance Monad Writer where
|
||||
return a = Writer a []
|
||||
(>>=) = bindWriter
|
Loading…
Reference in a new issue