Add error IDs to console output

Changelog.md

@@ -5,7 +5,7 @@ Language Features:
 
 Compiler Features:
  * Yul: Raise warning for switch statements that only have a default and no other cases.
- * Add error codes to JSON output.
+ * Output compilation error codes.
 
 
 Bugfixes:

liblangutil/SourceReferenceExtractor.cpp

@@ -38,7 +38,15 @@ SourceReferenceExtractor::Message SourceReferenceExtractor::extract(util::Except
 		for (auto const& info: secondaryLocation->infos)
 			secondary.emplace_back(extract(&info.second, info.first));
 
-	return Message{std::move(primary), _category, std::move(secondary)};
+	return Message{std::move(primary), _category, std::move(secondary), nullopt};
+}
+
+SourceReferenceExtractor::Message SourceReferenceExtractor::extract(Error const& _error)
+{
+	string category = (_error.type() == Error::Type::Warning) ? "Warning" : "Error";
+	Message message = extract(_error, category);
+	message.errorId = _error.errorId();
+	return message;
 }
 
 SourceReference SourceReferenceExtractor::extract(SourceLocation const* _location, std::string message)

liblangutil/SourceReferenceExtractor.h

@@ -16,16 +16,14 @@
 */
 #pragma once
 
+#include <liblangutil/Exceptions.h>
+
 #include <iosfwd>
+#include <optional>
 #include <string>
 #include <tuple>
 #include <vector>
 
-namespace solidity::util
-{
-struct Exception;
-}
-
 namespace solidity::langutil
 {
 
@@ -58,8 +56,6 @@ struct SourceReference
 	}
 };
 
-struct SourceLocation;
-
 namespace SourceReferenceExtractor
 {
 	struct Message
@@ -67,9 +63,11 @@ namespace SourceReferenceExtractor
 		SourceReference primary;
 		std::string category; // "Error", "Warning", ...
 		std::vector<SourceReference> secondary;
+		std::optional<ErrorId> errorId;
 	};
 
 	Message extract(util::Exception const& _exception, std::string _category);
+	Message extract(Error const& _error);
 	SourceReference extract(SourceLocation const* _location, std::string message = "");
 }
 

liblangutil/SourceReferenceFormatter.cpp

@@ -80,10 +80,7 @@ void SourceReferenceFormatter::printExceptionInformation(util::Exception const&
 
 void SourceReferenceFormatter::printErrorInformation(Error const& _error)
 {
-	printExceptionInformation(
-		_error,
-		(_error.type() == Error::Type::Warning) ? "Warning" : "Error"
-	);
+	printExceptionInformation(SourceReferenceExtractor::extract(_error));
 }
 
 void SourceReferenceFormatter::printExceptionInformation(SourceReferenceExtractor::Message const& _msg)

liblangutil/SourceReferenceFormatterHuman.cpp

@@ -151,6 +151,8 @@ void SourceReferenceFormatterHuman::printExceptionInformation(SourceReferenceExt
 {
 	// exception header line
 	errorColored() << _msg.category;
+	if (m_withErrorIds && _msg.errorId.has_value())
+		errorColored() << " (" << _msg.errorId.value().error << ")";
 	messageColored() << ": " << _msg.primary.message << '\n';
 
 	printSourceLocation(_msg.primary);

liblangutil/SourceReferenceFormatterHuman.h

@@ -29,22 +29,14 @@
 #include <sstream>
 #include <functional>
 
-namespace solidity::util
-{
-struct Exception; // forward
-}
-
 namespace solidity::langutil
 {
 
-struct SourceLocation;
-struct SourceReference;
-
 class SourceReferenceFormatterHuman: public SourceReferenceFormatter
 {
 public:
-	SourceReferenceFormatterHuman(std::ostream& _stream, bool colored):
-		SourceReferenceFormatter{_stream}, m_colored{colored}
+	SourceReferenceFormatterHuman(std::ostream& _stream, bool _colored, bool _withErrorIds):
+		SourceReferenceFormatter{_stream}, m_colored{_colored}, m_withErrorIds(_withErrorIds)
 	{}
 
 	void printSourceLocation(SourceReference const& _ref) override;
@@ -54,12 +46,13 @@ public:
 	static std::string formatExceptionInformation(
 		util::Exception const& _exception,
 		std::string const& _name,
-		bool colored = false
+		bool _colored = false,
+		bool _withErrorIds = false
 	)
 	{
 		std::ostringstream errorOutput;
 
-		SourceReferenceFormatterHuman formatter(errorOutput, colored);
+		SourceReferenceFormatterHuman formatter(errorOutput, _colored, _withErrorIds);
 		formatter.printExceptionInformation(_exception, _name);
 		return errorOutput.str();
 	}
@@ -75,6 +68,7 @@ private:
 
 private:
 	bool m_colored;
+	bool m_withErrorIds;
 };
 
 }

solc/CommandLineInterface.cpp

@@ -177,6 +177,7 @@ static string const g_strVersion = "version";
 static string const g_strIgnoreMissingFiles = "ignore-missing";
 static string const g_strColor = "color";
 static string const g_strNoColor = "no-color";
+static string const g_strErrorIds = "error-codes";
 static string const g_strOldReporter = "old-reporter";
 
 static string const g_argAbi = g_strAbi;
@@ -222,6 +223,7 @@ static string const g_stdinFileName = g_stdinFileNameStr;
 static string const g_argIgnoreMissingFiles = g_strIgnoreMissingFiles;
 static string const g_argColor = g_strColor;
 static string const g_argNoColor = g_strNoColor;
+static string const g_argErrorIds = g_strErrorIds;
 static string const g_argOldReporter = g_strOldReporter;
 
 /// Possible arguments to for --combined-json
@@ -876,6 +878,10 @@ General Information)").c_str(),
 			g_argNoColor.c_str(),
 			"Explicitly disable colored output, disabling terminal auto-detection."
 		)
+		(
+			g_argErrorIds.c_str(),
+			"Output error codes."
+		)
 		(
 			g_argOldReporter.c_str(),
 			"Enables old diagnostics reporter (legacy option, will be removed)."
@@ -989,6 +995,8 @@ General Information)").c_str(),
 
 	m_coloredOutput = !m_args.count(g_argNoColor) && (isatty(STDERR_FILENO) || m_args.count(g_argColor));
 
+	m_withErrorIds = m_args.count(g_argErrorIds);
+
 	if (m_args.count(g_argHelp) || (isatty(fileno(stdin)) && _argc == 1))
 	{
 		sout() << desc;
@@ -1294,7 +1302,7 @@ bool CommandLineInterface::processInput()
 	if (m_args.count(g_argOldReporter))
 		formatter = make_unique<SourceReferenceFormatter>(serr(false));
 	else
-		formatter = make_unique<SourceReferenceFormatterHuman>(serr(false), m_coloredOutput);
+		formatter = make_unique<SourceReferenceFormatterHuman>(serr(false), m_coloredOutput, m_withErrorIds);
 
 	try
 	{
@@ -1732,7 +1740,7 @@ bool CommandLineInterface::assemble(
 		if (m_args.count(g_argOldReporter))
 			formatter = make_unique<SourceReferenceFormatter>(serr(false));
 		else
-			formatter = make_unique<SourceReferenceFormatterHuman>(serr(false), m_coloredOutput);
+			formatter = make_unique<SourceReferenceFormatterHuman>(serr(false), m_coloredOutput, m_withErrorIds);
 
 		for (auto const& error: stack.errors())
 		{

solc/CommandLineInterface.h

@@ -131,6 +131,8 @@ private:
 	CompilerStack::MetadataHash m_metadataHash = CompilerStack::MetadataHash::IPFS;
 	/// Whether or not to colorize diagnostics output.
 	bool m_coloredOutput = true;
+	/// Whether or not to output error IDs.
+	bool m_withErrorIds = false;
 };
 
 }

test/cmdlineTests.sh

@@ -121,6 +121,7 @@ function test_solc_behaviour()
         rm "$stdout_path.bak"
     else
         sed -i.bak -e '/^Warning: This is a pre-release compiler version, please do not use it in production./d' "$stderr_path"
+        sed -i.bak -e '/^Warning (3805): This is a pre-release compiler version, please do not use it in production./d' "$stderr_path"
         sed -i.bak -e 's/\(^[ ]*auxdata: \)0x[0-9a-f]*$/\1AUXDATA REMOVED/' "$stdout_path"
         sed -i.bak -e 's/ Consider adding "pragma .*$//' "$stderr_path"
         # Remove trailing empty lines. Needs a line break to make OSX sed happy.

test/cmdlineTests/error_codes/args

@@ -0,0 +1 @@
+--error-codes

test/cmdlineTests/error_codes/err

@@ -0,0 +1,26 @@
+Error (4937): No visibility specified. Did you intend to add "public"?
+ --> error_codes/input.sol:4:5:
+  |
+4 |     function f() {
+  |     ^ (Relevant source part starts here and spans across multiple lines).
+
+Warning (3420): Source file does not specify required compiler version!
+--> error_codes/input.sol
+
+Error (4247): Expression has to be an lvalue.
+ --> error_codes/input.sol:5:9:
+  |
+5 |         2=0;
+  |         ^
+
+Error (7407): Type int_const 0 is not implicitly convertible to expected type int_const 2.
+ --> error_codes/input.sol:5:11:
+  |
+5 |         2=0;
+  |           ^
+
+Error (2614): Indexed expression has to be a type, mapping or array (is literal_string "")
+ --> error_codes/input.sol:6:9:
+  |
+6 |         ""[2];
+  |         ^^

test/cmdlineTests/error_codes/exit

@@ -0,0 +1 @@
+1

test/cmdlineTests/error_codes/input.sol

@@ -0,0 +1,8 @@
+// SPDX-License-Identifier: GPL-3.0
+
+contract C {
+    function f() {
+        2=0;
+        ""[2];
+    }
+}

test/libsolidity/ASTJSONTest.cpp

@@ -134,7 +134,7 @@ TestCase::TestResult ASTJSONTest::run(ostream& _stream, string const& _linePrefi
 		c.analyze();
 	else
 	{
-		SourceReferenceFormatterHuman formatter(_stream, _formatted);
+		SourceReferenceFormatterHuman formatter(_stream, _formatted, false);
 		for (auto const& error: c.errors())
 			formatter.printErrorInformation(*error);
 		return TestResult::FatalError;

test/libsolidity/GasTest.cpp

@@ -118,7 +118,7 @@ TestCase::TestResult GasTest::run(ostream& _stream, string const& _linePrefix, b
 
 	if (!compiler().parseAndAnalyze() || !compiler().compile())
 	{
-		SourceReferenceFormatterHuman formatter(_stream, _formatted);
+		SourceReferenceFormatterHuman formatter(_stream, _formatted, false);
 		for (auto const& error: compiler().errors())
 			formatter.printErrorInformation(*error);
 		return TestResult::FatalError;

tools/solidityUpgrade/SourceUpgrade.cpp

@@ -390,7 +390,7 @@ void SourceUpgrade::applyChange(
 
 void SourceUpgrade::printErrors() const
 {
-	auto formatter = make_unique<langutil::SourceReferenceFormatterHuman>(cout, true);
+	auto formatter = make_unique<langutil::SourceReferenceFormatterHuman>(cout, true, false);
 
 	for (auto const& error: m_compiler->errors())
 		if (error->type() != langutil::Error::Type::Warning)

tools/solidityUpgrade/UpgradeChange.cpp

@@ -36,7 +36,7 @@ void UpgradeChange::apply()
 void UpgradeChange::log(bool const _shorten) const
 {
 	stringstream os;
-	SourceReferenceFormatterHuman formatter{os, true};
+	SourceReferenceFormatterHuman formatter{os, true, false};
 
 	string start = to_string(m_location.start);
 	string end = to_string(m_location.end);