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xo-reader: split: exprstatestack to own .*pp files

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This commit is contained in:
Roland Conybeare 2024-08-19 13:48:47 -04:00
commit bcb2af4a56
16 changed files with 152 additions and 117 deletions
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53
include/xo/reader/exprstate.hpp
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@ -171,59 +171,6 @@ namespace xo {
x.print(os);
return os;
}
// ----- exprstatestack -----
/** @class exprstatestack
* @brief A stack of exprstate objects
**/
class exprstatestack {
public:
exprstatestack() {}
bool empty() const { return stack_.empty(); }
std::size_t size() const { return stack_.size(); }
exprstate & top_exprstate();
void push_exprstate(std::unique_ptr<exprstate> exs);
std::unique_ptr<exprstate> pop_exprstate();
/** relative to top-of-stack.
* 0 -> top (last in), z-1 -> bottom (first in)
**/
std::unique_ptr<exprstate> & operator[](std::size_t i) {
std::size_t z = stack_.size();
assert(i < z);
return stack_[z - i - 1];
}
const std::unique_ptr<exprstate> & operator[](std::size_t i) const {
std::size_t z = stack_.size();
assert(i < z);
return stack_[z - i - 1];
}
void print (std::ostream & os) const;
private:
std::vector<std::unique_ptr<exprstate>> stack_;
};
inline std::ostream &
operator<< (std::ostream & os, const exprstatestack & x) {
x.print(os);
return os;
}
inline std::ostream &
operator<< (std::ostream & os, const exprstatestack * x) {
x->print(os);
return os;
}
} /*namespace scm*/
} /*namespace xo*/