cerc-io/solidity
16
0
Fork 0
mirror of https://github.com/ethereum/solidity synced 2023-10-03 13:03:40 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Generic visitor.

Browse Source
This commit is contained in:
chriseth 2017-02-16 23:55:13 +01:00
parent caa3761dc9
commit 647473cf01
1 changed files with 28 additions and 37 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

65
libsolidity/inlineasm/AsmAnalysis.h
View File

@ -44,6 +44,31 @@ struct Instruction;
struct Identifier;
struct Assignment;
template <class...>
struct GenericVisitor{};
template <class Visitable, class... Others>
struct GenericVisitor<Visitable, Others...>: public GenericVisitor<Others...>
{
using GenericVisitor<Others...>::operator ();
explicit GenericVisitor(
std::function<void(Visitable&)> _visitor,
std::function<void(Others&)>... _otherVisitors
):
GenericVisitor<Others...>(_otherVisitors...),
m_visitor(_visitor)
{}
void operator()(Visitable& _v) const { m_visitor(_v); }
std::function<void(Visitable&)> m_visitor;
};
template <>
struct GenericVisitor<>: public boost::static_visitor<> {
void operator()() const {}
};
struct Scope
{
struct Variable
@ -63,43 +88,11 @@ struct Scope
};
using Identifier = boost::variant<Variable, Label>;
struct Visitor: public boost::static_visitor<>
{
Visitor(
std::function<void(Variable const&)> _varVisitor,
std::function<void(Label const&)> _labelVisitor
):
m_varVisitor(std::move(_varVisitor)),
m_labelVisitor(std::move(_labelVisitor))
{}
void operator()(Variable const& _var) const { m_varVisitor(_var); }
void operator()(Label const& _label) const { m_labelVisitor(_label); }
std::function<void(Variable const&)> m_varVisitor;
std::function<void(Label const&)> m_labelVisitor;
};
struct NonconstVisitor: public boost::static_visitor<>
{
NonconstVisitor(
std::function<void(Variable&)> _varVisitor,
std::function<void(Label&)> _labelVisitor
):
m_varVisitor(std::move(_varVisitor)),
m_labelVisitor(std::move(_labelVisitor))
{}
void operator()(Variable& _var) const { m_varVisitor(_var); }
void operator()(Label& _label) const { m_labelVisitor(_label); }
std::function<void(Variable&)> m_varVisitor;
std::function<void(Label&)> m_labelVisitor;
};
bool registerLabel(std::string const& _name, size_t _id);
using Visitor = GenericVisitor<Variable const, Label const>;
using NonconstVisitor = GenericVisitor<Variable, Label>;
bool registerVariable(std::string const& _name);
bool registerLabel(std::string const& _name, size_t _id);
/// Looks up the identifier in this or super scopes and returns a valid pointer if
/// found or a nullptr if not found.
@ -118,8 +111,6 @@ struct Scope
return false;
}
Scope* superScope = nullptr;
std::map<std::string, Identifier> identifiers;
};