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[cond-expr] generate assembly for _ ? _ : _

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This commit is contained in:
Lu Guanqun 2015-12-22 16:50:24 +00:00
parent 047172eb9a
commit ff4f1666ab
2 changed files with 16 additions and 0 deletions
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15
libsolidity/codegen/ExpressionCompiler.cpp
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@ -176,6 +176,21 @@ void ExpressionCompiler::appendStateVariableAccessor(VariableDeclaration const&
m_context.appendJump(eth::AssemblyItem::JumpType::OutOfFunction);
}
bool ExpressionCompiler::visit(Conditional const& _condition)
{
CompilerContext::LocationSetter locationSetter(m_context, _condition);
_condition.condition().accept(*this);
m_context << eth::Instruction::ISZERO;
eth::AssemblyItem falseTag = m_context.appendConditionalJump();
_condition.trueExpression().accept(*this);
eth::AssemblyItem endTag = m_context.appendJumpToNew();
m_context << falseTag;
m_context.adjustStackOffset(-1);
_condition.falseExpression().accept(*this);
m_context << endTag;
return false;
}
bool ExpressionCompiler::visit(Assignment const& _assignment)
{
CompilerContext::LocationSetter locationSetter(m_context, _assignment);

1
libsolidity/codegen/ExpressionCompiler.h
View File

@ -71,6 +71,7 @@ public:
void appendConstStateVariableAccessor(const VariableDeclaration& _varDecl);
private:
virtual bool visit(Conditional const& _condition) override;
virtual bool visit(Assignment const& _assignment) override;
virtual bool visit(TupleExpression const& _tuple) override;
virtual bool visit(UnaryOperation const& _unaryOperation) override;