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LR0: Made more methods const

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This commit is contained in:
Paul Beckingham 2016-01-02 14:42:39 -05:00
parent c0a7a203cf
commit 27f71d810f
2 changed files with 4 additions and 4 deletions
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4
src/LR0.cpp
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@ -94,7 +94,7 @@ void LR0::initialize (const Grammar& grammar)
// until no more items can be added to J;
// return J
// end
LR0::Closure LR0::getClosure (const Closure& items)
LR0::Closure LR0::getClosure (const Closure& items) const
{
LR0::Closure closure;
for (auto& item : items)
@ -116,7 +116,7 @@ LR0::Closure LR0::getClosure (const Closure& items)
////////////////////////////////////////////////////////////////////////////////
// Collect a unique set of expected symbols from the closure.
std::set <std::string> LR0::getExpected (const Closure& closure)
std::set <std::string> LR0::getExpected (const Closure& closure) const
{
std::set <std::string> expected;
for (auto& item : closure)

4
src/LR0.h
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@ -68,8 +68,8 @@ public:
};
private:
Closure getClosure (const Closure&);
std::set <std::string> getExpected (const Closure&);
Closure getClosure (const Closure&) const;
std::set <std::string> getExpected (const Closure&) const;
Closure expand (const Closure&) const;
private: