runtime: Add support for ethabi Tuple with to from asc conversions

Author: fordN

Cargo.lock

@@ -14,7 +14,7 @@ diesel = { version = "1.3.2", features = ["postgres", "serde_json", "numeric", "
 # But, graph-patches also contains Jannis' https://github.com/paritytech/ethabi/pull/140 PR
 # to ethabi. Which we believe will not get merged. For now, we shall deviate from ethabi,
 # but long term we want to avoid forking off ethabi if possible
-ethabi = { git = "https://github.com/graphprotocol/ethabi.git", branch = "graph-patches" }
+ethabi = { git = "https://github.com/graphprotocol/ethabi.git", branch = "ford/tuple" }
 hex = "0.3.2"
 futures = "0.1.21"
 graphql-parser = "0.2.1"

graph/Cargo.toml

@@ -9,7 +9,7 @@ edition = "2018"
 # But, graph-patches also contains Jannis' https://github.com/paritytech/ethabi/pull/140 PR
 # to ethabi. Which we believe will not get merged. For now, we shall deviate from ethabi,
 # but long term we want to avoid forking off ethabi if possible
-ethabi = { git = "https://github.com/graphprotocol/ethabi.git", branch = "graph-patches" }
+ethabi = { git = "https://github.com/graphprotocol/ethabi.git", branch = "ford/tuple" }
 futures = "0.1.21"
 hex = "0.3.2"
 graph = { path = "../../graph" }

runtime/wasm/Cargo.toml

@@ -311,6 +311,7 @@ pub(crate) enum EthereumValueKind {
     String,
     FixedArray,
     Array,
+    Tuple,
 }
 
 impl EthereumValueKind {
@@ -325,6 +326,7 @@ impl EthereumValueKind {
             ethabi::Token::String(_) => EthereumValueKind::String,
             ethabi::Token::FixedArray(_) => EthereumValueKind::FixedArray,
             ethabi::Token::Array(_) => EthereumValueKind::Array,
+            ethabi::Token::Tuple(_) => EthereumValueKind::Tuple,
         }
     }
 }

runtime/wasm/src/asc_abi/class.rs

@@ -98,6 +98,7 @@ impl ToAscObj<AscEnum<EthereumValueKind>> for ethabi::Token {
             Bool(b) => *b as u64,
             String(string) => heap.asc_new(&**string).to_payload(),
             FixedArray(tokens) | Array(tokens) => heap.asc_new(&**tokens).to_payload(),
+            Tuple(tokens) => heap.asc_new(&**tokens).to_payload(),
         };
 
         AscEnum {
@@ -149,6 +150,10 @@ impl FromAscObj<AscEnum<EthereumValueKind>> for ethabi::Token {
                 let ptr: AscEnumArray<EthereumValueKind> = AscPtr::from(payload);
                 Token::Array(heap.asc_get(ptr))
             }
+            EthereumValueKind::Tuple=> {
+                let ptr: AscEnumArray<EthereumValueKind> = AscPtr::from(payload);
+                Token::Tuple(heap.asc_get(ptr))
+            }
         }
     }
 }