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xo-reader: refactor: + parserstatemachine; use for def_expr

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This commit is contained in:
Roland Conybeare 2024-08-19 00:44:34 -04:00
commit 034dac7dfd
11 changed files with 69 additions and 18 deletions
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12
src/reader/paren_xs.cpp
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@ -2,6 +2,7 @@
#include "paren_xs.hpp"
#include "progress_xs.hpp"
#include "expect_expr_xs.hpp"
namespace xo {
namespace scm {
@ -10,10 +11,17 @@ namespace xo {
{}
std::unique_ptr<paren_xs>
paren_xs::lparen_0() {
paren_xs::make() {
return std::make_unique<paren_xs>(paren_xs());
}
void
paren_xs::start(exprstatestack * p_stack)
{
p_stack->push_exprstate(paren_xs::make());
expect_expr_xs::start(p_stack);
}
bool
paren_xs::admits_rightparen() const {
switch (parenxs_type_) {
@ -56,7 +64,7 @@ namespace xo {
void
paren_xs::on_def_token(const token_type & tk,
exprstatestack * /*p_stack*/)
parserstatemachine * /*p_stack*/)
{
constexpr const char * c_self_name = "paren_xs::on_def";