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xo-reader: refactor: simplify expect_formal_arglist_xs api

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This commit is contained in:
Roland Conybeare 2024-08-18 23:59:01 -04:00
commit 5916ac874f
3 changed files with 11 additions and 2 deletions
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5
include/xo/reader/expect_formal_arglist_xs.hpp
View file

@ -53,7 +53,7 @@ namespace xo {
public:
expect_formal_arglist_xs();
static std::unique_ptr<expect_formal_arglist_xs> make();
static void start(exprstatestack * p_stack);
virtual void on_leftparen_token(const token_type & tk,
exprstatestack * p_stack,
@ -69,6 +69,9 @@ namespace xo {
rp<Expression> * p_emit_expr) override;
virtual void print(std::ostream & os) const override;
private:
static std::unique_ptr<expect_formal_arglist_xs> make();
private:
/** parsing state-machine state **/
formalarglstatetype farglxs_type_ = formalarglstatetype::argl_0;

6
src/reader/expect_formal_arglist_xs.cpp
View file

@ -35,6 +35,12 @@ namespace xo {
(expect_formal_arglist_xs());
}
void
expect_formal_arglist_xs::start(exprstatestack * p_stack)
{
p_stack->push_exprstate(expect_formal_arglist_xs::make());
}
expect_formal_arglist_xs::expect_formal_arglist_xs()
: exprstate(exprstatetype::expect_formal_arglist),
farglxs_type_{formalarglstatetype::argl_0}

2
src/reader/lambda_xs.cpp
View file

@ -23,7 +23,7 @@ namespace xo {
{
if (lmxs_type_ == lambdastatetype::lm_0) {
this->lmxs_type_ = lambdastatetype::lm_1;
p_stack->push_exprstate(expect_formal_arglist_xs::make());
expect_formal_arglist_xs::start(p_stack);
} else {
exprstate::on_lambda_token(tk, p_stack, p_emit_expr);
}