Merge branch 'master' of https://github.com/fluencelabs/hackethberlin into publisher

README.md

@@ -32,10 +32,11 @@ This _crazy_ Scala code:
 ```scala
 
   val f = `@public` @:
-    sumArgs.funcDef("sum", uint256) { args ⇒
+    sumArgs.funcDef("sumSome", uint256) { args ⇒
     for {
       c ← 'c :=: `++`(args.ref('a), args.ref('b))
       d ← 'd :=: `++`(args.ref('b), c)
+      _ ← d :=: c
       sum ← `++`(args.ref('a), d).toReturn
     } yield sum
   }
@@ -49,14 +50,15 @@ Compiles into this:
 ```python
 
 @public
-def sum(a: uint256, b: uint256) -> uint256:
+def sumSome(a: uint256, b: uint256) -> uint256:
   c = a + b
   d = b + c
+  d = c
   return a + d
 
 ```
 
-This smart contract is deployed on [Rinkeby](some link to rinkeby scanner). Hooray!
+The more sophisticated [Auction example](https://github.com/fluencelabs/hackethberlin/blob/master/src/main/scala/fluence/Auction.scala) is deployed on [Rinkeby](https://rinkeby.etherscan.io/address/0xdfe0c07c8c6bb3fd9a7fd6ee45bd2c086374f13c). Hooray!
 
 ## Future plans
 

core/src/main/scala/fluence/hackethberlin/Expr.scala

@@ -1,7 +1,9 @@
 package fluence.hackethberlin
 
 import cats.free.Free
+import shapeless._
 import types._
+import syntax.singleton._
 
 sealed trait Expr[T] {
   def boxedValue: T
@@ -56,6 +58,7 @@ object Expr {
     boxedValue: T,
     body: () ⇒ Free[Expr, Void]
   ) extends InlineExpr[T] {
+
     def bodyVyper: String =
       body().foldMap(CodeChunk.fromExpr).run._1.toVyper(2)
     override def toVyper: String = s"$op " + right.toVyper + s":\n$bodyVyper"
@@ -85,17 +88,20 @@ object Expr {
     def `:===:`[A <: Type, B <: Type](a: InlineExpr[A], b: InlineExpr[B]): InlineExpr[bool.type] =
       Infix("==", a, b, bool)
 
-    def `+:+`[A <: timestamp.type, B <: timedelta.type](a: InlineExpr[A], b: InlineExpr[B]): InlineExpr[timestamp.type] =
+    def `+:+`[A <: timestamp.type, B <: timedelta.type](
+      a: InlineExpr[A],
+      b: InlineExpr[B]
+    ): InlineExpr[timestamp.type] =
       Infix("+", a, b, timestamp)
 
-    def `if`(expr: InlineExpr[bool.type], body: () ⇒ Free[Expr, Void]): InlineExpr[Void] =
-      RightBody("if", expr, Void, body)
+    def `if`(expr: InlineExpr[bool.type], body: () ⇒ Free[Expr, Void]): Free[Expr, Void.type] =
+      RightBody("if", expr, Void, body).liftF
 
     def `not`[A <: bool.type](expr: InlineExpr[A]): InlineExpr[bool.type] =
       Right("not", expr, bool)
 
-    def `assertt`(expr: InlineExpr[bool.type]): InlineExpr[bool.type] =
-      Right("assert", expr, bool)
+    def `assert`(expr: InlineExpr[bool.type]): Free[Expr, bool.type] =
+      Right("assert", expr, bool).liftF
 
     def `<<`[A <: Type, B <: Type](a: InlineExpr[A], b: InlineExpr[B]): InlineExpr[bool.type] =
       Infix("<", a, b, bool)
@@ -107,5 +113,33 @@ object Expr {
       Infix(">", a, b, bool)
   }
 
-  object Defs extends Defs
+  object Defs extends Defs {
+
+    import types._
+    import syntax.singleton._
+
+    val send =
+      ProductType(('_addr ->> `public`(address)) :: ('_money ->> `public`(wei_value)) :: HNil).funcDef(
+        "send",
+        Void
+      ) { args ⇒
+        for {
+          _ <- Free.pure(Void)
+        } yield Void
+      }
+
+    val predef = ProductType(
+      (Symbol("block.timestamp") ->> timestamp) ::
+        (Symbol("msg.value") ->> wei_value) ::
+        (Symbol("msg.sender") ->> address) ::
+        (Symbol("True") ->> bool) ::
+        (Symbol("False") ->> bool) ::
+        HNil
+    )
+
+    val `block.timestamp` = predef.ref(Symbol("block.timestamp"))
+    val `msg.value` = predef.ref(Symbol("msg.value"))
+    val `msg.sender` = predef.ref(Symbol("msg.sender"))
+    val `True` = predef.ref('True)
+  }
 }

core/src/main/scala/fluence/hackethberlin/FuncDef.scala

@@ -47,18 +47,4 @@ object FuncDef {
     mapped: ops.hlist.Mapped[_Values, InlineExpr]
   )(implicit values: ops.record.Values.Aux[Args, _Values]): FuncDef[Args, types.Void, mapped.Out] =
     new FuncDef(name, ProductType(argsDef), types.Void, args ⇒ body(args).map(_ ⇒ types.Void))
-
-  import types._
-  import syntax.singleton._
-
-  val send = {
-    ProductType(('_addr ->> `public`(address)) :: ('_money ->> `public`(wei_value)) :: HNil).funcDef(
-      "send",
-      Void
-    ) { args ⇒
-      for {
-        _ <- Free.pure(Void)
-      } yield Void
-    }
-  }
 }

src/main/scala/fluence/Auction.scala

@@ -0,0 +1,78 @@
+package fluence
+
+import hackethberlin._
+import hackethberlin.types._
+import shapeless._
+import Decorator._
+import syntax.singleton._
+import fluence.hackethberlin.{Contract, Expr}
+import fluence.hackethberlin.types.{`public`, ProductType, Void}
+import shapeless.HNil
+
+object Auction extends App {
+  import Expr.Defs._
+
+  val data = ProductType.self(
+    ('beneficiary ->> public(address)) ::
+      ('auction_start ->> public(timestamp)) ::
+      ('auction_end ->> public(timestamp)) ::
+      ('highest_bidder ->> `public`(address)) ::
+      ('highest_bid ->> `public`(wei_value)) ::
+      ('ended ->> public(bool)) :: HNil
+  )
+
+  val beneficiary = data.ref('beneficiary)
+  val auction_start = data.ref('auction_start)
+  val auction_end = data.ref('auction_end)
+  val highest_bid = data.ref('highest_bid)
+  val highest_bidder = data.ref('highest_bidder)
+  val ended = data.ref('ended)
+
+  val initArgs = ProductType(('_beneficiary ->> address) :: ('_bidding_time ->> timedelta) :: HNil)
+
+  val _beneficiary = initArgs.ref('_beneficiary)
+  val _bidding_time = initArgs.ref('_bidding_time)
+
+  val init = `@public` @: initArgs.funcDef(
+    "__init__",
+    Void
+  ) { args ⇒
+    for {
+      _ <- beneficiary :=: _beneficiary
+      _ <- auction_start :=: `block.timestamp`
+      _ <- auction_end :=: `+:+`(auction_start, _bidding_time)
+    } yield Void
+  }
+
+  val bid = `@public` @: `@payable` @: ProductType.hNil.funcDef(
+    "bid",
+    Void
+  ) { args ⇒
+    for {
+      _ <- `assert`(`<<`(`block.timestamp`, auction_end))
+      _ <- `assert`(`>>`(`msg.value`, highest_bid))
+      _ <- `if`(`not`(`:===:`(highest_bid, `msg.value`)), {
+        () =>
+          send(highest_bidder :: highest_bid :: HNil).liftF.map(_ => Void)
+      })
+      _ <- highest_bidder :=: `msg.sender`
+      _ <- highest_bid :=: `msg.value`
+    } yield Void
+  }
+
+  val end_auction = `@public` @: ProductType.hNil.funcDef(
+    "end_auction",
+    Void
+  ) { args ⇒
+    for {
+      _ <- `assert`(`>=`(`block.timestamp`, auction_end))
+      _ <- `assert`(`not`(ended))
+      _ <- ended :=: `True`
+      _ <- send(beneficiary :: highest_bid :: HNil).liftF.map(_ => Void)
+    } yield Void
+  }
+
+  val contract = new Contract(data :: init :: bid :: end_auction :: HNil)
+
+  println(contract.toVyper)
+}

src/main/scala/fluence/MakeVyperApp.scala

@@ -48,16 +48,17 @@ object MakeVyperApp extends App {
   import Expr.Defs._
 
   val f = `@public` @:
-    sumArgs.funcDef("sum", uint256) { args ⇒
+    sumArgs.funcDef("sumSome", uint256) { args ⇒
     for {
       c ← 'c :=: `++`(args.ref('a), args.ref('b))
-      _ ← Free.pure(`++`(args.ref('a), args.ref('b)))
       d ← 'd :=: `++`(args.ref('b), c)
       _ ← d :=: c
       sum ← `++`(args.ref('a), d).toReturn
     } yield sum
   }
 
+  println(f.toVyper)
+
   val all = recordStruct :: data :: func :: f :: HNil
 
   val c = new Contract(recordStruct :: struct :: data :: func :: f :: HNil)
@@ -67,91 +68,5 @@ object MakeVyperApp extends App {
   println(
     func(recordStruct.ref('record_address) :: HNil).toVyper
   )
-
 //  println(s"MMMMMACRO\n\n ${new MyContract("abc", 123).toAST.toVyper}")
 }
-
-object Auction extends App {
-  import Expr.Defs._
-
-  val predef = ProductType(
-    (Symbol("block.timestamp") ->> timestamp) ::
-      (Symbol("msg.value") ->> wei_value) ::
-      (Symbol("msg.sender") ->> address) ::
-      (Symbol("True") ->> bool) ::
-      HNil
-  )
-
-  val `block.timestamp` = predef.ref(Symbol("block.timestamp"))
-  val `msg.value` = predef.ref(Symbol("msg.value"))
-  val `msg.sender` = predef.ref(Symbol("msg.sender"))
-  val `True` = predef.ref('True)
-
-  val data = ProductType.self(
-    ('beneficiary ->> public(address)) ::
-      ('auction_start ->> public(timestamp)) ::
-      ('auction_end ->> public(timestamp)) ::
-      ('highest_bidder ->> `public`(address)) ::
-      ('highest_bid ->> `public`(wei_value)) ::
-      ('ended ->> public(bool)) :: HNil
-  )
-
-  val beneficiary = data.ref('beneficiary)
-  val auction_start = data.ref('auction_start)
-  val auction_end = data.ref('auction_end)
-  val highest_bid = data.ref('highest_bid)
-  val highest_bidder = data.ref('highest_bidder)
-  val ended = data.ref('ended)
-
-  val initArgs = ProductType(('_beneficiary ->> address) :: ('_bidding_time ->> timedelta) :: HNil)
-
-  val _beneficiary = initArgs.ref('_beneficiary)
-  val _bidding_time = initArgs.ref('_bidding_time)
-
-  val init = `@public` @: initArgs.funcDef(
-    "__init__",
-    Void
-  ) { args ⇒
-    for {
-      _ <- Free.pure(Void)
-      _ <- beneficiary :=: _beneficiary
-      _ <- auction_start :=: `block.timestamp`
-      _ <- auction_end :=: `+:+`(auction_start, _bidding_time)
-    } yield Void
-  }
-
-  val bidIf: () ⇒ Free[Expr, Void] = { () =>
-    for {
-      _ <- FuncDef.send(highest_bidder :: highest_bid :: HNil).liftF
-    } yield Void
-  }
-
-  val bid = `@public` @: `@payable` @: ProductType.hNil.funcDef(
-    "bid",
-    Void
-  ) { args ⇒
-    for {
-      _ <- `assertt`(`<<`(`block.timestamp`, auction_end)).liftF
-      _ <- `assertt`(`>>`(`msg.value`, highest_bid)).liftF
-      _ <- `if`(`not`(`:===:`(highest_bid, `msg.value`)), bidIf).liftF
-      _ <- highest_bidder :=: `msg.sender`
-      _ <- highest_bid :=: `msg.value`
-    } yield Void
-  }
-
-  val end_auction = `@public` @: ProductType.hNil.funcDef(
-    "end_auction",
-    Void
-  ) { args ⇒
-    for {
-      _ <- `assertt`(`>=`(`block.timestamp`, auction_end)).liftF
-      _ <- `assertt`(`not`(ended)).liftF
-      _ <- ended :=: `True`
-      _ <- FuncDef.send(beneficiary :: highest_bid :: HNil).liftF
-    } yield Void
-  }
-
-  val contract = new Contract(data :: init :: bid :: end_auction :: HNil)
-
-  println(contract.toVyper)
-}