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xo-reader xo-expression: nested lambdas working properly + docs

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This commit is contained in:
Roland Conybeare 2025-07-06 14:13:44 -05:00
commit 699ee5d38e
41 changed files with 736 additions and 137 deletions
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11
xo-reader/src/reader/parser.cpp
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@ -10,11 +10,15 @@
#include "xo/expression/DefineExpr.hpp"
#include "xo/expression/Constant.hpp"
#include "xo/expression/ConvertExpr.hpp"
//#include "xo/expression/GlobalEnv.hpp"
#include "xo/expression/LocalEnv.hpp"
//#include <regex>
#include <stdexcept>
namespace xo {
using xo::ast::Expression;
//using xo::ast::GlobalEnv;
using xo::ast::LocalEnv;
//using xo::ast::DefineExpr;
//using xo::ast::ConvertExpr;
//using xo::ast::Constant;
@ -28,14 +32,15 @@ namespace xo {
: xs_stack_{}, env_stack_{}
{
/* top-level environment. initially empty */
envframe toplevel_env;
rp<LocalEnv> toplevel_env = LocalEnv::make_empty();
this->env_stack_.push_envframe(toplevel_env);
}
bool
parser::has_incomplete_expr() const {
return !xs_stack_.empty();
/* (don't count toplevel exprseq) */
return xs_stack_.size() > 1;
}
void
@ -73,6 +78,8 @@ namespace xo {
/* stack_ is non-empty */
log && log(xtag("top", xs_stack_.top_exprstate()));
rp<Expression> retval;
parserstatemachine psm(&xs_stack_, &env_stack_, &retval);