diff options
| -rw-r--r-- | Changelog.md | 1 | ||||
| -rw-r--r-- | libyul/AsmAnalysis.cpp | 29 | ||||
| -rw-r--r-- | test/libsolidity/InlineAssembly.cpp | 3 | ||||
| -rw-r--r-- | test/libsolidity/syntaxTests/inlineAssembly/function_call_invalid_argument_count.sol | 6 |
4 files changed, 24 insertions, 15 deletions
diff --git a/Changelog.md b/Changelog.md index 7bdcd518..2acd60c8 100644 --- a/Changelog.md +++ b/Changelog.md @@ -4,6 +4,7 @@ Language Features: Compiler Features: + * Inline Assembly: Improve error messages around invalid function argument count. Bugfixes: diff --git a/libyul/AsmAnalysis.cpp b/libyul/AsmAnalysis.cpp index d3f6de84..d2efdd9f 100644 --- a/libyul/AsmAnalysis.cpp +++ b/libyul/AsmAnalysis.cpp @@ -244,9 +244,18 @@ bool AsmAnalyzer::operator()(VariableDeclaration const& _varDecl) { int const stackHeight = m_stackHeight; success = boost::apply_visitor(*this, *_varDecl.value); - if ((m_stackHeight - stackHeight) != numVariables) + int numValues = m_stackHeight - stackHeight; + if (numValues != numVariables) { - m_errorReporter.declarationError(_varDecl.location, "Variable count mismatch."); + m_errorReporter.declarationError(_varDecl.location, + "Variable count mismatch: " + + to_string(numVariables) + + " variables and " + + to_string(numValues) + + " values." + ); + // Adjust stack height to avoid misleading additional errors. + m_stackHeight += numVariables - numValues; return false; } } @@ -288,7 +297,7 @@ bool AsmAnalyzer::operator()(FunctionCall const& _funCall) { solAssert(!_funCall.functionName.name.empty(), ""); bool success = true; - size_t arguments = 0; + size_t parameters = 0; size_t returns = 0; if (!m_currentScope->lookup(_funCall.functionName.name, Scope::Visitor( [&](Scope::Variable const&) @@ -310,7 +319,7 @@ bool AsmAnalyzer::operator()(FunctionCall const& _funCall) [&](Scope::Function const& _fun) { /// TODO: compare types too - arguments = _fun.arguments.size(); + parameters = _fun.arguments.size(); returns = _fun.returns.size(); } ))) @@ -319,21 +328,23 @@ bool AsmAnalyzer::operator()(FunctionCall const& _funCall) success = false; } if (success) - { - if (_funCall.arguments.size() != arguments) + if (_funCall.arguments.size() != parameters) { m_errorReporter.typeError( _funCall.functionName.location, - "Expected " + to_string(arguments) + " arguments but got " + + "Function expects " + + to_string(parameters) + + " arguments but got " + to_string(_funCall.arguments.size()) + "." ); success = false; } - } + for (auto const& arg: _funCall.arguments | boost::adaptors::reversed) if (!expectExpression(arg)) success = false; - m_stackHeight += int(returns) - int(arguments); + // Use argument size instead of parameter count to avoid misleading errors. + m_stackHeight += int(returns) - int(_funCall.arguments.size()); m_info.stackHeightInfo[&_funCall] = m_stackHeight; return success; } diff --git a/test/libsolidity/InlineAssembly.cpp b/test/libsolidity/InlineAssembly.cpp index 11d4c59f..b6986041 100644 --- a/test/libsolidity/InlineAssembly.cpp +++ b/test/libsolidity/InlineAssembly.cpp @@ -433,8 +433,7 @@ BOOST_AUTO_TEST_CASE(variable_access_cross_functions) BOOST_AUTO_TEST_CASE(invalid_tuple_assignment) { - /// The push(42) is added here to silence the unbalanced stack error, so that there's only one error reported. - CHECK_PARSE_ERROR("{ 42 let x, y := 1 }", DeclarationError, "Variable count mismatch."); + CHECK_PARSE_ERROR("{ let x, y := 1 }", DeclarationError, "Variable count mismatch: 2 variables and 1 values"); } BOOST_AUTO_TEST_CASE(instruction_too_few_arguments) diff --git a/test/libsolidity/syntaxTests/inlineAssembly/function_call_invalid_argument_count.sol b/test/libsolidity/syntaxTests/inlineAssembly/function_call_invalid_argument_count.sol index ac1f541e..2d36bedd 100644 --- a/test/libsolidity/syntaxTests/inlineAssembly/function_call_invalid_argument_count.sol +++ b/test/libsolidity/syntaxTests/inlineAssembly/function_call_invalid_argument_count.sol @@ -10,7 +10,5 @@ contract C { } } // ---- -// TypeError: (87-88): Expected 1 arguments but got 0. -// SyntaxError: (87-90): Top-level expressions are not supposed to return values (this expression returns -1 values). Use ``pop()`` or assign them. -// TypeError: (108-109): Expected 1 arguments but got 2. -// SyntaxError: (108-115): Top-level expressions are not supposed to return values (this expression returns 1 value). Use ``pop()`` or assign them. +// TypeError: (87-88): Function expects 1 arguments but got 0. +// TypeError: (108-109): Function expects 1 arguments but got 2. |