Merge pull request #9759 from ethereum/develop

Merge develop into breaking.

.circleci/config.yml

@@ -107,14 +107,17 @@ defaults:
 
   - run_soltest: &run_soltest
       name: soltest
+      no_output_timeout: 30m
       command: ./.circleci/soltest.sh
 
   - run_soltest_all: &run_soltest_all
       name: soltest_all
+      no_output_timeout: 30m
       command: ./.circleci/soltest_all.sh
 
   - run_cmdline_tests: &run_cmdline_tests
       name: command line tests
+      no_output_timeout: 30m
       command: ./test/cmdlineTests.sh
 
   - run_docs_pragma_min_version: &run_docs_pragma_min_version
@@ -163,7 +166,6 @@ defaults:
           at: build
       - run:
           <<: *run_soltest
-          no_output_timeout: 30m
       - store_test_results: *store_test_results
       - store_artifacts: *artifacts_test_results
 
@@ -175,7 +177,6 @@ defaults:
           at: build
       - run:
           <<: *run_soltest
-          no_output_timeout: 30m
       - store_test_results: *store_test_results
       - store_artifacts: *artifacts_test_results
 
@@ -709,7 +710,6 @@ jobs:
           at: build
       - run:
           <<: *run_cmdline_tests
-          no_output_timeout: 30m
       - store_test_results: *store_test_results
       - store_artifacts: *artifacts_test_results
 
@@ -745,6 +745,7 @@ jobs:
             apt-get install -qqy --no-install-recommends nodejs npm cvc4
       - run:
           name: Test solcjs
+          no_output_timeout: 30m
           command: |
             node --version
             npm --version

Changelog.md

@@ -12,7 +12,8 @@ Compiler Features:
  * Yul Optimizer: Prune unused parameters in functions.
 
 Bugfixes:
-
+ * Type Checker: Disallow ``virtual`` for modifiers in libraries.
+ * ViewPureChecker: Prevent visibility check on constructors.
 
 ### 0.7.1 (2020-09-02)
 

libsolidity/analysis/TypeChecker.cpp

@@ -320,6 +320,15 @@ void TypeChecker::endVisit(InheritanceSpecifier const& _inheritance)
 
 void TypeChecker::endVisit(ModifierDefinition const& _modifier)
 {
+	if (_modifier.virtualSemantics())
+		if (auto const* contractDef = dynamic_cast<ContractDefinition const*>(_modifier.scope()))
+			if (contractDef->isLibrary())
+				m_errorReporter.typeError(
+					3275_error,
+					_modifier.location(),
+					"Modifiers in a library cannot be virtual."
+				);
+
 	if (!_modifier.isImplemented() && !_modifier.virtualSemantics())
 		m_errorReporter.typeError(8063_error, _modifier.location(), "Modifiers without implementation must be marked virtual.");
 }

libsolidity/analysis/ViewPureChecker.cpp

@@ -261,21 +261,24 @@ void ViewPureChecker::reportMutability(
 	{
 		// We do not warn for library functions because they cannot be payable anyway.
 		// Also internal functions should be allowed to use `msg.value`.
-		if (m_currentFunction->isPublic() && !m_currentFunction->libraryFunction())
+		if ((m_currentFunction->isConstructor() || m_currentFunction->isPublic()) && !m_currentFunction->libraryFunction())
 		{
 			if (_nestedLocation)
 				m_errorReporter.typeError(
 					4006_error,
 					_location,
 					SecondarySourceLocation().append("\"msg.value\" or \"callvalue()\" appear here inside the modifier.", *_nestedLocation),
-					"This modifier uses \"msg.value\" or \"callvalue()\" and thus the function has to be payable or internal."
+					m_currentFunction->isConstructor()  ?
+						"This modifier uses \"msg.value\" or \"callvalue()\" and thus the constructor has to be payable."
+						: "This modifier uses \"msg.value\" or \"callvalue()\" and thus the function has to be payable or internal."
 				);
 			else
 				m_errorReporter.typeError(
 					5887_error,
 					_location,
-					"\"msg.value\" and \"callvalue()\" can only be used in payable public functions. Make the function "
+					m_currentFunction->isConstructor()  ?
-					"\"payable\" or use an internal function to avoid this error."
+						"\"msg.value\" and \"callvalue()\" can only be used in payable constructors. Make the constructor \"payable\" to avoid this error."
+						: "\"msg.value\" and \"callvalue()\" can only be used in payable public functions. Make the function \"payable\" or use an internal function to avoid this error."
 				);
 			m_errors = true;
 		}

libyul/backends/evm/EVMCodeTransform.h

@@ -193,7 +193,7 @@ private:
 	void visitStatements(std::vector<Statement> const& _statements);
 
 	/// Pops all variables declared in the block and checks that the stack height is equal
-	/// to @a _blackStartStackHeight.
+	/// to @a _blockStartStackHeight.
 	void finalizeBlock(Block const& _block, int _blockStartStackHeight);
 
 	void generateMultiAssignment(std::vector<Identifier> const& _variableNames);

libyul/optimiser/FunctionGrouper.h

@@ -16,7 +16,7 @@
 */
 // SPDX-License-Identifier: GPL-3.0
 /**
- * Optimiser component that changes the code of a black so that all non-function definition
+ * Optimiser component that changes the code of a block so that all non-function definition
  * instructions are moved to a block of their own followed by all function definitions.
  */
 

test/libsolidity/syntaxTests/constructor/msg_value_non_payable.sol

@@ -0,0 +1,8 @@
+contract C {
+    uint256 value;
+    constructor() {
+        value = msg.value;
+    }
+}
+// ----
+// TypeError 5887: (68-77): "msg.value" and "callvalue()" can only be used in payable constructors. Make the constructor "payable" to avoid this error.

test/libsolidity/syntaxTests/functionCalls/msg_value_non_payable.sol

@@ -0,0 +1,7 @@
+contract C {
+    function get() public view returns(uint256) {
+        return msg.value;
+    }
+}
+// ----
+// TypeError 5887: (78-87): "msg.value" and "callvalue()" can only be used in payable public functions. Make the function "payable" or use an internal function to avoid this error.

test/libsolidity/syntaxTests/inheritance/virtual/modifier_virtual_err.sol

@@ -0,0 +1,7 @@
+library test {
+    modifier m virtual;
+    function f() m public {
+    }
+}
+// ----
+// TypeError 3275: (19-38): Modifiers in a library cannot be virtual.