Merge pull request #5232 from blockscout/np-support-functions-overloading

Add functions overloading support

.dialyzer-ignore

@@ -18,7 +18,7 @@ lib/phoenix/router.ex:402
 lib/block_scout_web/views/layout_view.ex:145: The call 'Elixir.Poison.Parser':'parse!'
 lib/block_scout_web/views/layout_view.ex:237: The call 'Elixir.Poison.Parser':'parse!'
 lib/block_scout_web/controllers/api/rpc/transaction_controller.ex:22
-lib/explorer/smart_contract/reader.ex:436
+lib/explorer/smart_contract/reader.ex:435
 lib/indexer/fetcher/token_total_supply_on_demand.ex:16
 lib/explorer/exchange_rates/source.ex:110
 lib/explorer/exchange_rates/source.ex:113

CHANGELOG.md

@@ -1,6 +1,7 @@
 ## Current
 
 ### Features
+- [#5232](https://github.com/blockscout/blockscout/pull/5232) - Contract Read Page: Add functions overloading support
 - [#5220](https://github.com/blockscout/blockscout/pull/5220) - Add info about proxy contracts to api methods response
 - [#5200](https://github.com/blockscout/blockscout/pull/5200) - Docker-compose configuration
 - [#5105](https://github.com/blockscout/blockscout/pull/5105) - Redesign token page

apps/block_scout_web/lib/block_scout_web/controllers/smart_contract_controller.ex

@@ -114,15 +114,13 @@ defmodule BlockScoutWeb.SmartContractController do
             address_hash,
             %{method_id: params["method_id"], args: args},
             contract_type,
-            params["function_name"],
             params["from"]
           )
         else
           Reader.query_function_with_names(
             address_hash,
             %{method_id: params["method_id"], args: args},
-            contract_type,
+            contract_type
-            params["function_name"]
           )
         end
 

apps/block_scout_web/lib/block_scout_web/templates/smart_contract/_functions.html.eex

@@ -55,7 +55,18 @@
           end
         %>
         <%= render BlockScoutWeb.SmartContractView, "_pending_contract_write.html" %>
-        <form class="form-inline" data-function-form data-action="<%= if @action == "write", do: :write, else: :read %>" data-type="<%= @contract_type %>" data-url="<%= smart_contract_path(@conn, :show, Address.checksum(@address.hash)) %>" data-contract-address="<%= @address.hash %>" data-contract-abi="<%= @contract_abi %>" data-implementation-abi="<%= @implementation_abi  %>" data-chain-id="<%= Explorer.Chain.Cache.NetVersion.get_version() %>">
+        <% function_abi = 
+                    case Jason.encode([function]) do 
+                      {:ok, abi_string} ->
+                        abi_string
+                      _ ->
+                        if @contract_type == "proxy" do
+                          @implementation_abi
+                        else
+                          @contract_abi
+                        end 
+                    end %>
+        <form class="form-inline" data-function-form data-action="<%= if @action == "write", do: :write, else: :read %>" data-type="<%= @contract_type %>" data-url="<%= smart_contract_path(@conn, :show, Address.checksum(@address.hash)) %>" data-contract-address="<%= @address.hash %>" data-contract-abi="<%= function_abi %>" data-implementation-abi="<%= function_abi %>" data-chain-id="<%= Explorer.Chain.Cache.NetVersion.get_version() %>">
           <input type="hidden" name="function_name" value='<%= function["name"] %>' />
           <input type="hidden" name="method_id" value='<%= function["method_id"] %>' />
 

apps/block_scout_web/priv/gettext/default.pot

@@ -1028,8 +1028,8 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address_token/overview.html.eex:1
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:93 lib/block_scout_web/templates/smart_contract/_functions.html.eex:93
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:104 lib/block_scout_web/templates/smart_contract/_functions.html.eex:104
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:135
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:146
 msgid "ETH"
 msgstr ""
 
@@ -1926,7 +1926,7 @@ msgid "QR Code"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:98
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:109
 msgid "Query"
 msgstr ""
 
@@ -3093,7 +3093,7 @@ msgid "Vyper contract"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:134
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:145
 msgid "WEI"
 msgstr ""
 
@@ -3148,7 +3148,7 @@ msgid "Working Stake Amount"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:98
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:109
 msgid "Write"
 msgstr ""
 

apps/block_scout_web/priv/gettext/en/LC_MESSAGES/default.po

@@ -1028,8 +1028,8 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address_token/overview.html.eex:1
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:93 lib/block_scout_web/templates/smart_contract/_functions.html.eex:93
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:104 lib/block_scout_web/templates/smart_contract/_functions.html.eex:104
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:135
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:146
 msgid "ETH"
 msgstr ""
 
@@ -1926,7 +1926,7 @@ msgid "QR Code"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:98
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:109
 msgid "Query"
 msgstr ""
 
@@ -3093,7 +3093,7 @@ msgid "Vyper contract"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:134
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:145
 msgid "WEI"
 msgstr ""
 
@@ -3148,7 +3148,7 @@ msgid "Working Stake Amount"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:98
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:109
 msgid "Write"
 msgstr ""
 

apps/explorer/lib/explorer/smart_contract/reader.ex

@@ -367,13 +367,13 @@ defmodule Explorer.SmartContract.Reader do
     `type` could be :proxy or :reqular
     if ethereumJSONRPC will return some errors it will represented as map
   """
-  @spec query_function_with_names(Hash.t(), %{method_id: String.t(), args: [term()] | nil}, atom(), String.t()) :: %{
+  @spec query_function_with_names(Hash.t(), %{method_id: String.t(), args: [term()] | nil}, atom()) :: %{
           :names => [any()],
           :output => [%{}]
         }
-  def query_function_with_names(contract_address_hash, %{method_id: method_id, args: args}, type, function_name) do
+  def query_function_with_names(contract_address_hash, %{method_id: method_id, args: args}, type) do
     outputs = query_function(contract_address_hash, %{method_id: method_id, args: args}, type, true)
-    names = parse_names_from_abi(get_abi(contract_address_hash, type), function_name)
+    names = parse_names_from_abi(get_abi(contract_address_hash, type), method_id)
     %{output: outputs, names: names}
   end
 
@@ -386,12 +386,11 @@ defmodule Explorer.SmartContract.Reader do
           Hash.t(),
           %{method_id: String.t(), args: [term()] | nil},
           atom(),
-          String.t(),
           String.t()
         ) :: %{:names => [any()], :output => [%{}]}
-  def query_function_with_names(contract_address_hash, %{method_id: method_id, args: args}, type, function_name, from) do
+  def query_function_with_names(contract_address_hash, %{method_id: method_id, args: args}, type, from) do
     outputs = query_function(contract_address_hash, %{method_id: method_id, args: args}, type, from, true)
-    names = parse_names_from_abi(get_abi(contract_address_hash, type), function_name)
+    names = parse_names_from_abi(get_abi(contract_address_hash, type), method_id)
     %{output: outputs, names: names}
   end
 
@@ -462,8 +461,10 @@ defmodule Explorer.SmartContract.Reader do
     end
   end
 
-  defp parse_names_from_abi(abi, function_name) do
+  defp parse_names_from_abi(abi, method_id) do
-    function = Enum.find(abi, fn el -> el["type"] == "function" and el["name"] == function_name end)
+    function =
+      Enum.find(get_abi_with_method_id(abi), fn el -> el["type"] == "function" and el["method_id"] == method_id end)
+
     outputs_to_list(function["outputs"])
   end