Throw error for old solc versions

adeubank · Oct 29, 2021 · 0e5419e · 0e5419e
1 parent 730353d
commit 0e5419e
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diff --git a/packages/hardhat-core/src/builtin-tasks/compile.ts b/packages/hardhat-core/src/builtin-tasks/compile.ts
@@ -99,6 +99,8 @@ function isConsoleLogError(error: any): boolean {
 
 const log = debug("hardhat:core:tasks:compile");
 
+const COMPILE_TASK_FIRST_SOLC_VERSION_SUPPORTED = "0.4.11";
+
 /**
  * Returns a list of absolute paths to all the solidity files in the project.
  * This list doesn't include dependencies, for example solidity files inside
@@ -643,6 +645,18 @@ subtask(TASK_COMPILE_SOLIDITY_COMPILE_SOLC)
       },
       { run }
     ): Promise<{ output: CompilerOutput; solcBuild: SolcBuild }> => {
+      // versions older than 0.4.11 don't work with hardhat
+      // see issue https://github.com/nomiclabs/hardhat/issues/2004
+      if (semver.lt(solcVersion, COMPILE_TASK_FIRST_SOLC_VERSION_SUPPORTED)) {
+        throw new HardhatError(
+          ERRORS.BUILTIN_TASKS.COMPILE_TASK_UNSUPPORTED_SOLC_VERSION,
+          {
+            version: solcVersion,
+            firstSupportedVersion: COMPILE_TASK_FIRST_SOLC_VERSION_SUPPORTED,
+          }
+        );
+      }
+
       const solcBuild: SolcBuild = await run(
         TASK_COMPILE_SOLIDITY_GET_SOLC_BUILD,
         {

diff --git a/packages/hardhat-core/src/internal/core/errors-list.ts b/packages/hardhat-core/src/internal/core/errors-list.ts
@@ -861,6 +861,16 @@ To start the JSON-RPC server, retry the command without the --network parameter.
 if the URL of the JSON-RPC wasn't set.`,
       shouldBeReported: false,
     },
+    COMPILE_TASK_UNSUPPORTED_SOLC_VERSION: {
+      number: 608,
+      message: `Version %version% is not supported by Hardhat.
+
+The first supported version is %firstSupportedVersion%`,
+      title: "Unsupported solc version",
+      description: `This version of solidity is not supported by Hardhtat.
+Please use a newer, supported version.`,
+      shouldBeReported: true,
+    },
   },
   ARTIFACTS: {
     NOT_FOUND: {