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authorchriseth <chris@ethereum.org>2017-06-06 21:37:43 +0800
committerchriseth <chris@ethereum.org>2017-06-08 21:52:45 +0800
commitef3d5874fefa6a86a30d4afdcfd269d599edda5d (patch)
treeb97381cf9e39d55cd42c585255f7903c7687bcdc /libjulia/backends/evm
parent19f707aeaa23b55a4a5940977a9d6351d1f06938 (diff)
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Remove error reporter from code generation phase.
Diffstat (limited to 'libjulia/backends/evm')
-rw-r--r--libjulia/backends/evm/EVMCodeTransform.cpp20
-rw-r--r--libjulia/backends/evm/EVMCodeTransform.h16
2 files changed, 15 insertions, 21 deletions
diff --git a/libjulia/backends/evm/EVMCodeTransform.cpp b/libjulia/backends/evm/EVMCodeTransform.cpp
index 2b6a11e0..6c66eaaa 100644
--- a/libjulia/backends/evm/EVMCodeTransform.cpp
+++ b/libjulia/backends/evm/EVMCodeTransform.cpp
@@ -73,14 +73,14 @@ void CodeTransform::operator()(Assignment const& _assignment)
{
visitExpression(*_assignment.value);
m_assembly.setSourceLocation(_assignment.location);
- generateAssignment(_assignment.variableName, _assignment.location);
+ generateAssignment(_assignment.variableName);
checkStackHeight(&_assignment);
}
void CodeTransform::operator()(StackAssignment const& _assignment)
{
m_assembly.setSourceLocation(_assignment.location);
- generateAssignment(_assignment.variableName, _assignment.location);
+ generateAssignment(_assignment.variableName);
checkStackHeight(&_assignment);
}
@@ -172,7 +172,7 @@ void CodeTransform::operator()(assembly::Identifier const& _identifier)
if (m_scope->lookup(_identifier.name, Scope::NonconstVisitor(
[=](Scope::Variable& _var)
{
- if (int heightDiff = variableHeightDiff(_var, _identifier.location, false))
+ if (int heightDiff = variableHeightDiff(_var, false))
m_assembly.appendInstruction(solidity::dupInstruction(heightDiff));
else
// Store something to balance the stack
@@ -320,7 +320,7 @@ void CodeTransform::operator()(FunctionDefinition const& _function)
m_assembly.appendConstant(u256(0));
}
- CodeTransform(m_errorReporter, m_assembly, m_info, m_evm15, m_identifierAccess, localStackAdjustment)
+ CodeTransform(m_assembly, m_info, m_evm15, m_identifierAccess, localStackAdjustment)
.run(_function.body);
{
@@ -366,7 +366,7 @@ void CodeTransform::operator()(FunctionDefinition const& _function)
void CodeTransform::operator()(Block const& _block)
{
- CodeTransform(m_errorReporter, m_assembly, m_info, m_evm15, m_identifierAccess, m_stackAdjustment).run(_block);
+ CodeTransform(m_assembly, m_info, m_evm15, m_identifierAccess, m_stackAdjustment).run(_block);
}
AbstractAssembly::LabelID CodeTransform::labelFromIdentifier(Identifier const& _identifier)
@@ -394,14 +394,14 @@ void CodeTransform::visitExpression(Statement const& _expression)
expectDeposit(1, height);
}
-void CodeTransform::generateAssignment(Identifier const& _variableName, SourceLocation const& _location)
+void CodeTransform::generateAssignment(Identifier const& _variableName)
{
solAssert(m_scope, "");
auto var = m_scope->lookup(_variableName.name);
if (var)
{
Scope::Variable const& _var = boost::get<Scope::Variable>(*var);
- if (int heightDiff = variableHeightDiff(_var, _location, true))
+ if (int heightDiff = variableHeightDiff(_var, true))
m_assembly.appendInstruction(solidity::swapInstruction(heightDiff - 1));
m_assembly.appendInstruction(solidity::Instruction::POP);
}
@@ -415,14 +415,12 @@ void CodeTransform::generateAssignment(Identifier const& _variableName, SourceLo
}
}
-int CodeTransform::variableHeightDiff(solidity::assembly::Scope::Variable const& _var, SourceLocation const& _location, bool _forSwap)
+int CodeTransform::variableHeightDiff(solidity::assembly::Scope::Variable const& _var, bool _forSwap)
{
int heightDiff = m_assembly.stackHeight() - _var.stackHeight;
if (heightDiff <= (_forSwap ? 1 : 0) || heightDiff > (_forSwap ? 17 : 16))
{
- //@TODO move this to analysis phase.
- m_errorReporter.typeError(
- _location,
+ solUnimplemented(
"Variable inaccessible, too deep inside stack (" + boost::lexical_cast<string>(heightDiff) + ")"
);
return 0;
diff --git a/libjulia/backends/evm/EVMCodeTransform.h b/libjulia/backends/evm/EVMCodeTransform.h
index 39f542e3..6031d1a8 100644
--- a/libjulia/backends/evm/EVMCodeTransform.h
+++ b/libjulia/backends/evm/EVMCodeTransform.h
@@ -61,12 +61,11 @@ public:
/// Create the code transformer.
/// @param _identifierAccess used to resolve identifiers external to the inline assembly
CodeTransform(
- solidity::ErrorReporter& _errorReporter,
julia::AbstractAssembly& _assembly,
solidity::assembly::AsmAnalysisInfo& _analysisInfo,
bool _evm15 = false,
ExternalIdentifierAccess const& _identifierAccess = ExternalIdentifierAccess()
- ): CodeTransform(_errorReporter, _assembly, _analysisInfo, _evm15, _identifierAccess, _assembly.stackHeight())
+ ): CodeTransform(_assembly, _analysisInfo, _evm15, _identifierAccess, _assembly.stackHeight())
{
}
@@ -75,14 +74,12 @@ public:
protected:
CodeTransform(
- solidity::ErrorReporter& _errorReporter,
julia::AbstractAssembly& _assembly,
solidity::assembly::AsmAnalysisInfo& _analysisInfo,
bool _evm15,
ExternalIdentifierAccess const& _identifierAccess,
int _stackAdjustment
):
- m_errorReporter(_errorReporter),
m_assembly(_assembly),
m_info(_analysisInfo),
m_evm15(_evm15),
@@ -109,12 +106,12 @@ private:
/// Generates code for an expression that is supposed to return a single value.
void visitExpression(solidity::assembly::Statement const& _expression);
- void generateAssignment(solidity::assembly::Identifier const& _variableName, SourceLocation const& _location);
+ void generateAssignment(solidity::assembly::Identifier const& _variableName);
- /// Determines the stack height difference to the given variables. Automatically generates
- /// errors if it is not yet in scope or the height difference is too large. Returns 0 on
- /// errors and the (positive) stack height difference otherwise.
- int variableHeightDiff(solidity::assembly::Scope::Variable const& _var, SourceLocation const& _location, bool _forSwap);
+ /// Determines the stack height difference to the given variables. Throws
+ /// if it is not yet in scope or the height difference is too large. Returns
+ /// the (positive) stack height difference otherwise.
+ int variableHeightDiff(solidity::assembly::Scope::Variable const& _var, bool _forSwap);
void expectDeposit(int _deposit, int _oldHeight);
@@ -123,7 +120,6 @@ private:
/// Assigns the label's or function's id to a value taken from eth::Assembly if it has not yet been set.
void assignLabelIdIfUnset(boost::optional<AbstractAssembly::LabelID>& _labelId);
- solidity::ErrorReporter& m_errorReporter;
julia::AbstractAssembly& m_assembly;
solidity::assembly::AsmAnalysisInfo& m_info;
solidity::assembly::Scope* m_scope = nullptr;