Merge pull request #6320 from ethereum/callvalue_nonpayable

Inline Assembly: Issue error for callvalue in nonpayable function

Changelog.md

@@ -4,6 +4,7 @@ Language Features:
 
 
 Compiler Features:
+ * Inline Assembly: Issue error when using ``callvalue()`` inside nonpayable function (in the same way that ``msg.value`` already does).
  * Yul Optimizer: Enable stack allocation optimization by default if yul optimizer is active (disable in yulDetails).
 
 

libsolidity/analysis/ViewPureChecker.cpp

@@ -112,6 +112,8 @@ private:
 	{
 		if (eth::SemanticInformation::invalidInViewFunctions(_instruction))
 			m_reportMutability(StateMutability::NonPayable, _location);
+		else if (_instruction == Instruction::CALLVALUE)
+			m_reportMutability(StateMutability::Payable, _location);
 		else if (eth::SemanticInformation::invalidInPureFunctions(_instruction))
 			m_reportMutability(StateMutability::View, _location);
 	}
@@ -270,13 +272,13 @@ void ViewPureChecker::reportMutability(
 			if (_nestedLocation)
 				m_errorReporter.typeError(
 					_location,
-					SecondarySourceLocation().append("\"msg.value\" appears here inside the modifier.", *_nestedLocation),
+					SecondarySourceLocation().append("\"msg.value\" or \"callvalue()\" appear here inside the modifier.", *_nestedLocation),
-					"This modifier uses \"msg.value\" and thus the function has to be payable or internal."
+					"This modifier uses \"msg.value\" or \"callvalue()\" and thus the function has to be payable or internal."
 				);
 			else
 				m_errorReporter.typeError(
 					_location,
-					"\"msg.value\" can only be used in payable public functions. Make the function "
+					"\"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;

test/libsolidity/syntaxTests/memberLookup/msg_value_modifier_view.sol

@@ -3,4 +3,4 @@ contract C {
     function f() costs(1 ether) public view {}
 }
 // ----
-// TypeError: (101-115): This modifier uses "msg.value" and thus the function has to be payable or internal.
+// TypeError: (101-115): This modifier uses "msg.value" or "callvalue()" and thus the function has to be payable or internal.

test/libsolidity/syntaxTests/nameAndTypeResolution/397_warns_msg_value_in_non_payable_public_function.sol

@@ -4,4 +4,4 @@ contract C {
     }
 }
 // ----
-// TypeError: (52-61): "msg.value" can only be used in payable public functions. Make the function "payable" or use an internal function to avoid this error.
+// TypeError: (52-61): "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/viewPureChecker/callvalue_nonpayable_assembly_fallback.sol

@@ -0,0 +1,11 @@
+contract C
+{
+    function () external {
+        uint x;
+        assembly {
+            x := callvalue()
+        }
+    }
+}
+// ----
+// TypeError: (92-103): "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/viewPureChecker/callvalue_nonpayable_assembly_function.sol

@@ -0,0 +1,10 @@
+contract C
+{
+    function f(uint x) public {
+        assembly {
+            x := callvalue()
+        }
+    }
+}
+// ----
+// TypeError: (81-92): "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/viewPureChecker/callvalue_nonpayable_assembly_function_internal.sol

@@ -0,0 +1,11 @@
+contract C
+{
+    function f() internal returns (uint x) {
+        assembly {
+            x := callvalue()
+        }
+    }
+	function g() public returns (uint) {
+		return f();
+	}
+}

test/libsolidity/syntaxTests/viewPureChecker/callvalue_nonpayable_assembly_function_modifier.sol

@@ -0,0 +1,14 @@
+contract C
+{
+	modifier m {
+		uint x;
+		assembly {
+			x := callvalue()
+		}
+		_;
+	}
+    function f() m public {
+    }
+}
+// ----
+// TypeError: (99-100): This modifier uses "msg.value" or "callvalue()" and thus the function has to be payable or internal.

test/libsolidity/syntaxTests/viewPureChecker/callvalue_payable_assembly_fallback.sol

@@ -0,0 +1,9 @@
+contract C
+{
+    function () external payable {
+        uint x;
+        assembly {
+            x := callvalue()
+        }
+    }
+}

test/libsolidity/syntaxTests/viewPureChecker/callvalue_payable_assembly_function.sol

@@ -0,0 +1,8 @@
+contract C
+{
+    function f(uint x) public payable {
+        assembly {
+            x := callvalue()
+        }
+    }
+}

test/libsolidity/syntaxTests/viewPureChecker/callvalue_payable_assembly_function_modifier.sol

@@ -0,0 +1,12 @@
+contract C
+{
+	modifier m {
+		uint x;
+		assembly {
+			x := callvalue()
+		}
+		_;
+	}
+    function f() m public payable {
+    }
+}

test/libsolidity/syntaxTests/viewPureChecker/msg_value_modifier_view.sol

@@ -3,4 +3,4 @@ contract C {
     function f() m(1 ether, msg.value) public view {}
 }
 // ----
-// TypeError: (118-127): "msg.value" can only be used in payable public functions. Make the function "payable" or use an internal function to avoid this error.
+// TypeError: (118-127): "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.