Merge pull request #1654 from poanetwork/ab-tab-for-decompiled-contracts

tab for decompiled code

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ### Features
 
+ - [1654](https://github.com/poanetwork/blockscout/pull/1654) - add decompiled code tab
  - [1661](https://github.com/poanetwork/blockscout/pull/1661) - try to compile smart contract with the latest evm version
 
 ### Fixes

apps/block_scout_web/lib/block_scout_web/controllers/address_decompiled_contract_controller.ex

@@ -0,0 +1,30 @@
+defmodule BlockScoutWeb.AddressDecompiledContractController do
+  use BlockScoutWeb, :controller
+
+  import BlockScoutWeb.AddressController, only: [transaction_count: 1, validation_count: 1]
+
+  alias Explorer.{Chain, Market}
+  alias Explorer.ExchangeRates.Token
+  alias Indexer.CoinBalance.OnDemandFetcher
+
+  def index(conn, %{"address_id" => address_hash_string}) do
+    with {:ok, address_hash} <- Chain.string_to_address_hash(address_hash_string),
+         {:ok, address} <- Chain.find_decompiled_contract_address(address_hash) do
+      render(
+        conn,
+        "index.html",
+        address: address,
+        coin_balance_status: OnDemandFetcher.trigger_fetch(address),
+        exchange_rate: Market.get_exchange_rate(Explorer.coin()) || Token.null(),
+        transaction_count: transaction_count(address),
+        validation_count: validation_count(address)
+      )
+    else
+      :error ->
+        not_found(conn)
+
+      {:error, :not_found} ->
+        not_found(conn)
+    end
+  end
+end

apps/block_scout_web/lib/block_scout_web/router.ex

@@ -129,6 +129,13 @@ defmodule BlockScoutWeb.Router do
         as: :contract
       )
 
+      resources(
+        "/decompiled_contracts",
+        AddressDecompiledContractController,
+        only: [:index],
+        as: :decompiled_contract
+      )
+
       resources(
         "/contract_verifications",
         AddressContractVerificationController,

apps/block_scout_web/lib/block_scout_web/templates/address/_tabs.html.eex

@@ -59,6 +59,16 @@
     </li>
   <% end %>
 
+  <%= if has_decompiled_code?(@address) do %>
+    <li class="nav-item">
+      <%= link(
+          to: address_decompiled_contract_path(@conn, :index, @address.hash),
+          class: "nav-link #{tab_status("decompiled_contracts", @conn.request_path)}") do %>
+         <%= gettext("Decompiled code") %>
+      <% end %>
+    </li>
+  <% end %>
+
   <%= if smart_contract_with_read_only_functions?(@address) do %>
     <li class="nav-item">
       <%= link(
@@ -115,6 +125,14 @@
           <%= if smart_contract_verified?(@address) do %>
             <i class="far fa-check-circle"></i>
           <% end %>
+
+          <%= if has_decompiled_code?(@address) do %>
+            <%= link(
+                to: address_decompiled_contract_path(@conn, :index, @address.hash),
+                class: "dropdown-item #{tab_status("contracts", @conn.request_path)}") do %>
+             <%= gettext("Decompiled code") %>
+          <% end %>
+        <% end %>
         <% end %>
       <% end %>
       <%= if smart_contract_with_read_only_functions?(@address) do %>

apps/block_scout_web/lib/block_scout_web/templates/address_decompiled_contract/_metatags.html.eex

@@ -0,0 +1 @@
+<%= render BlockScoutWeb.AddressView, "_metatags.html", conn: @conn, address: @address %>

apps/block_scout_web/lib/block_scout_web/templates/address_decompiled_contract/index.html.eex

@@ -0,0 +1,30 @@
+<section class="container">
+  <%= render BlockScoutWeb.AddressView, "overview.html", assigns %>
+
+  <div class="card">
+    <div class="card-header">
+      <%= render BlockScoutWeb.AddressView, "_tabs.html", assigns %>
+    </div>
+
+    <%= for {contract, _i} <- Enum.with_index(@address.decompiled_smart_contracts) do %>
+      <div class="card-body">
+        <h3><%= gettext "Decompiler version" %></h3>
+        <div class="tile tile-muted">
+          <pre class="pre-wrap pre-scrollable"><code class="nohighlight"><%= contract.decompiler_version %></code></pre>
+        </div>
+        <br>
+        <section>
+          <div class="d-flex justify-content-between align-items-baseline">
+            <h3><%= gettext "Decompiled contract code" %></h3>
+            <button type="button" class="button button-secondary button-sm" id="button" data-clipboard-text="<%= contract.decompiled_source_code %>" aria-label="copy decompiled contract code">
+              <%= gettext "Copy Decompiled Contract Code" %>
+            </button>
+          </div>
+          <div class="tile tile-muted">
+            <pre class="pre-wrap pre-scrollable"><code class="nohighlight"><%= contract.decompiled_source_code %></code></pre>
+          </div>
+        </section>
+      </div>
+   <% end %>
+  </div>
+</section>

apps/block_scout_web/lib/block_scout_web/views/address_decompiled_contract_view.ex

@@ -0,0 +1,3 @@
+defmodule BlockScoutWeb.AddressDecompiledContractView do
+  use BlockScoutWeb, :view
+end

apps/block_scout_web/lib/block_scout_web/views/address_view.ex

@@ -16,6 +16,7 @@ defmodule BlockScoutWeb.AddressView do
   @tabs [
     "coin_balances",
     "contracts",
+    "decompiled_contracts",
     "internal_transactions",
     "read_contract",
     "tokens",
@@ -205,6 +206,11 @@ defmodule BlockScoutWeb.AddressView do
 
   def smart_contract_with_read_only_functions?(%Address{smart_contract: nil}), do: false
 
+  def has_decompiled_code?(address) do
+    address.has_decompiled_code? ||
+      (Ecto.assoc_loaded?(address.decompiled_smart_contracts) && Enum.count(address.decompiled_smart_contracts) > 0)
+  end
+
   def token_title(%Token{name: nil, contract_address_hash: contract_address_hash}) do
     contract_address_hash
     |> to_string
@@ -288,6 +294,7 @@ defmodule BlockScoutWeb.AddressView do
   defp tab_name(["transactions"]), do: gettext("Transactions")
   defp tab_name(["internal_transactions"]), do: gettext("Internal Transactions")
   defp tab_name(["contracts"]), do: gettext("Code")
+  defp tab_name(["decompiled_contracts"]), do: gettext("Decompiled Code")
   defp tab_name(["read_contract"]), do: gettext("Read Contract")
   defp tab_name(["coin_balances"]), do: gettext("Coin Balance History")
   defp tab_name(["validations"]), do: gettext("Blocks Validated")

apps/block_scout_web/priv/gettext/default.pot

@@ -99,7 +99,7 @@ msgstr ""
 #, elixir-format
 #: lib/block_scout_web/templates/address/_validator_metadata_modal.html.eex:16
 #: lib/block_scout_web/templates/transaction_log/index.html.eex:15
-#: lib/block_scout_web/views/address_view.ex:100
+#: lib/block_scout_web/views/address_view.ex:101
 msgid "Address"
 msgstr ""
 
@@ -188,11 +188,11 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:40
-#: lib/block_scout_web/templates/address/_tabs.html.eex:103
+#: lib/block_scout_web/templates/address/_tabs.html.eex:113
 #: lib/block_scout_web/templates/address/overview.html.eex:59
 #: lib/block_scout_web/templates/address_validation/index.html.eex:30
 #: lib/block_scout_web/templates/address_validation/index.html.eex:57
-#: lib/block_scout_web/views/address_view.ex:293
+#: lib/block_scout_web/views/address_view.ex:300
 msgid "Blocks Validated"
 msgstr ""
 
@@ -218,11 +218,11 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:53
-#: lib/block_scout_web/templates/address/_tabs.html.eex:113
+#: lib/block_scout_web/templates/address/_tabs.html.eex:123
 #: lib/block_scout_web/templates/address_validation/index.html.eex:39
 #: lib/block_scout_web/templates/api_docs/_action_tile.html.eex:119
 #: lib/block_scout_web/templates/api_docs/_action_tile.html.eex:141
-#: lib/block_scout_web/views/address_view.ex:290
+#: lib/block_scout_web/views/address_view.ex:296
 msgid "Code"
 msgstr ""
 
@@ -266,14 +266,14 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address_contract_verification/new.html.eex:13
-#: lib/block_scout_web/views/address_view.ex:98
+#: lib/block_scout_web/views/address_view.ex:99
 msgid "Contract Address"
 msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/transaction/_pending_tile.html.eex:16
-#: lib/block_scout_web/views/address_view.ex:38
+#: lib/block_scout_web/views/address_view.ex:39
-#: lib/block_scout_web/views/address_view.ex:72
+#: lib/block_scout_web/views/address_view.ex:73
 msgid "Contract Address Pending"
 msgstr ""
 
@@ -488,13 +488,13 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:21
-#: lib/block_scout_web/templates/address/_tabs.html.eex:90
+#: lib/block_scout_web/templates/address/_tabs.html.eex:100
 #: lib/block_scout_web/templates/address_internal_transaction/index.html.eex:58
 #: lib/block_scout_web/templates/address_validation/index.html.eex:24
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:14
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:43
 #: lib/block_scout_web/templates/transaction_internal_transaction/index.html.eex:10
-#: lib/block_scout_web/views/address_view.ex:289
+#: lib/block_scout_web/views/address_view.ex:295
 #: lib/block_scout_web/views/transaction_view.ex:258
 msgid "Internal Transactions"
 msgstr ""
@@ -528,7 +528,7 @@ msgstr ""
 #, elixir-format
 #: lib/block_scout_web/templates/chain/show.html.eex:28
 #: lib/block_scout_web/templates/layout/app.html.eex:49
-#: lib/block_scout_web/views/address_view.ex:120
+#: lib/block_scout_web/views/address_view.ex:121
 msgid "Market Cap"
 msgstr ""
 
@@ -698,11 +698,11 @@ msgid "Query"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address/_tabs.html.eex:65
+#: lib/block_scout_web/templates/address/_tabs.html.eex:75
-#: lib/block_scout_web/templates/address/_tabs.html.eex:122
+#: lib/block_scout_web/templates/address/_tabs.html.eex:140
 #: lib/block_scout_web/templates/tokens/overview/_tabs.html.eex:33
 #: lib/block_scout_web/templates/tokens/overview/_tabs.html.eex:75
-#: lib/block_scout_web/views/address_view.ex:291
+#: lib/block_scout_web/views/address_view.ex:298
 #: lib/block_scout_web/views/tokens/overview_view.ex:37
 msgid "Read Contract"
 msgstr ""
@@ -891,12 +891,12 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:13
-#: lib/block_scout_web/templates/address/_tabs.html.eex:85
+#: lib/block_scout_web/templates/address/_tabs.html.eex:95
 #: lib/block_scout_web/templates/address_token/index.html.eex:11
 #: lib/block_scout_web/templates/address_token_transfer/index.html.eex:12
 #: lib/block_scout_web/templates/address_validation/index.html.eex:11
 #: lib/block_scout_web/templates/address_validation/index.html.eex:19
-#: lib/block_scout_web/views/address_view.ex:287
+#: lib/block_scout_web/views/address_view.ex:293
 msgid "Tokens"
 msgstr ""
 
@@ -948,7 +948,7 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:5
-#: lib/block_scout_web/templates/address/_tabs.html.eex:80
+#: lib/block_scout_web/templates/address/_tabs.html.eex:90
 #: lib/block_scout_web/templates/address_transaction/index.html.eex:53
 #: lib/block_scout_web/templates/address_validation/index.html.eex:14
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:13
@@ -957,7 +957,7 @@ msgstr ""
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:35
 #: lib/block_scout_web/templates/chain/show.html.eex:93
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:35
-#: lib/block_scout_web/views/address_view.ex:288
+#: lib/block_scout_web/views/address_view.ex:294
 msgid "Transactions"
 msgstr ""
 
@@ -1399,8 +1399,8 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:30
-#: lib/block_scout_web/templates/address/_tabs.html.eex:96
+#: lib/block_scout_web/templates/address/_tabs.html.eex:106
-#: lib/block_scout_web/views/address_view.ex:292
+#: lib/block_scout_web/views/address_view.ex:299
 msgid "Coin Balance History"
 msgstr ""
 
@@ -1701,3 +1701,29 @@ msgstr ""
 #: lib/block_scout_web/templates/address_contract_verification/new.html.eex:58
 msgid "Enter constructor arguments if the contract had any"
 msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address/_tabs.html.eex:67
+#: lib/block_scout_web/templates/address/_tabs.html.eex:133
+msgid "Decompiled code"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:20
+msgid "Copy Decompiled Contract Code"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/views/address_view.ex:297
+msgid "Decompiled Code"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:18
+msgid "Decompiled contract code"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:11
+msgid "Decompiler version"
+msgstr ""

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

@@ -99,7 +99,7 @@ msgstr ""
 #, elixir-format
 #: lib/block_scout_web/templates/address/_validator_metadata_modal.html.eex:16
 #: lib/block_scout_web/templates/transaction_log/index.html.eex:15
-#: lib/block_scout_web/views/address_view.ex:100
+#: lib/block_scout_web/views/address_view.ex:101
 msgid "Address"
 msgstr ""
 
@@ -188,11 +188,11 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:40
-#: lib/block_scout_web/templates/address/_tabs.html.eex:103
+#: lib/block_scout_web/templates/address/_tabs.html.eex:113
 #: lib/block_scout_web/templates/address/overview.html.eex:59
 #: lib/block_scout_web/templates/address_validation/index.html.eex:30
 #: lib/block_scout_web/templates/address_validation/index.html.eex:57
-#: lib/block_scout_web/views/address_view.ex:293
+#: lib/block_scout_web/views/address_view.ex:300
 msgid "Blocks Validated"
 msgstr ""
 
@@ -218,11 +218,11 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:53
-#: lib/block_scout_web/templates/address/_tabs.html.eex:113
+#: lib/block_scout_web/templates/address/_tabs.html.eex:123
 #: lib/block_scout_web/templates/address_validation/index.html.eex:39
 #: lib/block_scout_web/templates/api_docs/_action_tile.html.eex:119
 #: lib/block_scout_web/templates/api_docs/_action_tile.html.eex:141
-#: lib/block_scout_web/views/address_view.ex:290
+#: lib/block_scout_web/views/address_view.ex:296
 msgid "Code"
 msgstr ""
 
@@ -266,14 +266,14 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address_contract_verification/new.html.eex:13
-#: lib/block_scout_web/views/address_view.ex:98
+#: lib/block_scout_web/views/address_view.ex:99
 msgid "Contract Address"
 msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/transaction/_pending_tile.html.eex:16
-#: lib/block_scout_web/views/address_view.ex:38
+#: lib/block_scout_web/views/address_view.ex:39
-#: lib/block_scout_web/views/address_view.ex:72
+#: lib/block_scout_web/views/address_view.ex:73
 msgid "Contract Address Pending"
 msgstr ""
 
@@ -488,13 +488,13 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:21
-#: lib/block_scout_web/templates/address/_tabs.html.eex:90
+#: lib/block_scout_web/templates/address/_tabs.html.eex:100
 #: lib/block_scout_web/templates/address_internal_transaction/index.html.eex:58
 #: lib/block_scout_web/templates/address_validation/index.html.eex:24
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:14
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:43
 #: lib/block_scout_web/templates/transaction_internal_transaction/index.html.eex:10
-#: lib/block_scout_web/views/address_view.ex:289
+#: lib/block_scout_web/views/address_view.ex:295
 #: lib/block_scout_web/views/transaction_view.ex:258
 msgid "Internal Transactions"
 msgstr ""
@@ -528,7 +528,7 @@ msgstr ""
 #, elixir-format
 #: lib/block_scout_web/templates/chain/show.html.eex:28
 #: lib/block_scout_web/templates/layout/app.html.eex:49
-#: lib/block_scout_web/views/address_view.ex:120
+#: lib/block_scout_web/views/address_view.ex:121
 msgid "Market Cap"
 msgstr ""
 
@@ -698,11 +698,11 @@ msgid "Query"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address/_tabs.html.eex:65
+#: lib/block_scout_web/templates/address/_tabs.html.eex:75
-#: lib/block_scout_web/templates/address/_tabs.html.eex:122
+#: lib/block_scout_web/templates/address/_tabs.html.eex:140
 #: lib/block_scout_web/templates/tokens/overview/_tabs.html.eex:33
 #: lib/block_scout_web/templates/tokens/overview/_tabs.html.eex:75
-#: lib/block_scout_web/views/address_view.ex:291
+#: lib/block_scout_web/views/address_view.ex:298
 #: lib/block_scout_web/views/tokens/overview_view.ex:37
 msgid "Read Contract"
 msgstr ""
@@ -891,12 +891,12 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:13
-#: lib/block_scout_web/templates/address/_tabs.html.eex:85
+#: lib/block_scout_web/templates/address/_tabs.html.eex:95
 #: lib/block_scout_web/templates/address_token/index.html.eex:11
 #: lib/block_scout_web/templates/address_token_transfer/index.html.eex:12
 #: lib/block_scout_web/templates/address_validation/index.html.eex:11
 #: lib/block_scout_web/templates/address_validation/index.html.eex:19
-#: lib/block_scout_web/views/address_view.ex:287
+#: lib/block_scout_web/views/address_view.ex:293
 msgid "Tokens"
 msgstr ""
 
@@ -948,7 +948,7 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:5
-#: lib/block_scout_web/templates/address/_tabs.html.eex:80
+#: lib/block_scout_web/templates/address/_tabs.html.eex:90
 #: lib/block_scout_web/templates/address_transaction/index.html.eex:53
 #: lib/block_scout_web/templates/address_validation/index.html.eex:14
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:13
@@ -957,7 +957,7 @@ msgstr ""
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:35
 #: lib/block_scout_web/templates/chain/show.html.eex:93
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:35
-#: lib/block_scout_web/views/address_view.ex:288
+#: lib/block_scout_web/views/address_view.ex:294
 msgid "Transactions"
 msgstr ""
 
@@ -1399,8 +1399,8 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:30
-#: lib/block_scout_web/templates/address/_tabs.html.eex:96
+#: lib/block_scout_web/templates/address/_tabs.html.eex:106
-#: lib/block_scout_web/views/address_view.ex:292
+#: lib/block_scout_web/views/address_view.ex:299
 msgid "Coin Balance History"
 msgstr ""
 
@@ -1636,11 +1636,6 @@ msgstr ""
 msgid "Contract Libraries"
 msgstr ""
 
-#, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:58
-msgid "Enter contructor arguments if the contract had any"
-msgstr ""
-
 #, elixir-format
 #: lib/block_scout_web/templates/address/overview.html.eex:52
 msgid "Last Balance Update: Block #"
@@ -1697,7 +1692,38 @@ msgstr ""
 msgid "Search by address, token symbol name, transaction hash, or block number"
 msgstr ""
 
-#, elixir-format, fuzzy
+#, elixir-format
 #: lib/block_scout_web/templates/address_contract_verification/new.html.eex:31
 msgid "EVM Version"
 msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:58
+msgid "Enter constructor arguments if the contract had any"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address/_tabs.html.eex:67
+#: lib/block_scout_web/templates/address/_tabs.html.eex:133
+msgid "Decompiled code"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:20
+msgid "Copy Decompiled Contract Code"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/views/address_view.ex:297
+msgid "Decompiled Code"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:18
+msgid "Decompiled contract code"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:11
+msgid "Decompiler version"
+msgstr ""

apps/explorer/lib/explorer/chain.ex

@@ -660,7 +660,9 @@ defmodule Explorer.Chain do
         where: address.hash == ^hash
       )
 
-    query
+    query_with_decompiled_flag = with_decompiled_code_flag(query, hash)
+
+    query_with_decompiled_flag
     |> Repo.one()
     |> case do
       nil -> {:error, :not_found}
@@ -763,6 +765,7 @@ defmodule Explorer.Chain do
     Repo.all(query)
   end
 
+  @spec find_contract_address(Hash.t()) :: {:ok, Address.t()} | {:error, :not_found}
   def find_contract_address(%Hash{byte_count: unquote(Hash.Address.byte_count())} = hash) do
     query =
       from(
@@ -777,6 +780,33 @@ defmodule Explorer.Chain do
         where: address.hash == ^hash and not is_nil(address.contract_code)
       )
 
+    query_with_decompiled_flag = with_decompiled_code_flag(query, hash)
+
+    address = Repo.one(query_with_decompiled_flag)
+
+    if address do
+      {:ok, address}
+    else
+      {:error, :not_found}
+    end
+  end
+
+  @spec find_decompiled_contract_address(Hash.t()) :: {:ok, Address.t()} | {:error, :not_found}
+  def find_decompiled_contract_address(%Hash{byte_count: unquote(Hash.Address.byte_count())} = hash) do
+    query =
+      from(
+        address in Address,
+        preload: [
+          :contracts_creation_internal_transaction,
+          :names,
+          :smart_contract,
+          :token,
+          :contracts_creation_transaction,
+          :decompiled_smart_contracts
+        ],
+        where: address.hash == ^hash
+      )
+
     address = Repo.one(query)
 
     if address do
@@ -2727,4 +2757,19 @@ defmodule Explorer.Chain do
 
     value
   end
+
+  defp with_decompiled_code_flag(query, hash) do
+    has_decompiled_code_query =
+      from(decompiled_contract in DecompiledSmartContract,
+        where: decompiled_contract.address_hash == ^hash,
+        limit: 1,
+        select: %{has_decompiled_code?: not is_nil(decompiled_contract.address_hash)}
+      )
+
+    from(
+      address in query,
+      left_join: decompiled_code in subquery(has_decompiled_code_query),
+      select_merge: %{has_decompiled_code?: decompiled_code.has_decompiled_code?}
+    )
+  end
 end

apps/explorer/lib/explorer/chain/address.ex

@@ -74,6 +74,7 @@ defmodule Explorer.Chain.Address do
     field(:fetched_coin_balance_block_number, :integer)
     field(:contract_code, Data)
     field(:nonce, :integer)
+    field(:has_decompiled_code?, :boolean, virtual: true)
 
     has_one(:smart_contract, SmartContract)
     has_one(:decompiled_smart_contract, DecompiledSmartContract)
@@ -92,6 +93,7 @@ defmodule Explorer.Chain.Address do
     )
 
     has_many(:names, Address.Name, foreign_key: :address_hash)
+    has_many(:decompiled_smart_contracts, DecompiledSmartContract, foreign_key: :address_hash)
 
     timestamps()
   end

apps/explorer/test/explorer/chain_test.exs

@@ -854,6 +854,23 @@ defmodule Explorer.ChainTest do
 
       assert {:ok, address} = Chain.hash_to_address(address.hash)
     end
+
+    test "has_decompiled_code? is true if there are decompiled contracts" do
+      address = insert(:address)
+      insert(:decompiled_smart_contract, address_hash: address.hash)
+
+      {:ok, found_address} = Chain.hash_to_address(address.hash)
+
+      assert found_address.has_decompiled_code?
+    end
+
+    test "has_decompiled_code? is false if there are no decompiled contracts" do
+      address = insert(:address)
+
+      {:ok, found_address} = Chain.hash_to_address(address.hash)
+
+      refute found_address.has_decompiled_code?
+    end
   end
 
   describe "token_contract_address_from_token_name/1" do
@@ -2330,6 +2347,18 @@ defmodule Explorer.ChainTest do
     end
   end
 
+  describe "find_decompiled_contract_address/1" do
+    test "returns contract with decompiled contracts" do
+      address = insert(:address)
+      insert(:decompiled_smart_contract, address_hash: address.hash)
+      insert(:decompiled_smart_contract, address_hash: address.hash, decompiler_version: "2")
+
+      {:ok, address} = Chain.find_decompiled_contract_address(address.hash)
+
+      assert Enum.count(address.decompiled_smart_contracts) == 2
+    end
+  end
+
   describe "block_reward/1" do
     setup do
       %{block_range: range} = emission_reward = insert(:emission_reward)