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xo-reader2: + DExpectFormalArglistSsm [WIP]

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This commit is contained in:
Roland Conybeare 2026-01-28 15:31:52 -05:00
commit f9ae5bc3c6
18 changed files with 899 additions and 8 deletions
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36
xo-reader2/src/reader2/DExprSeqState.cpp
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@ -4,10 +4,12 @@
**/
#include "DExprSeqState.hpp"
#include "DDefineSsm.hpp"
#include "ssm/ISyntaxStateMachine_DExprSeqState.hpp"
#include <xo/reader2/DProgressSsm.hpp>
#include <xo/reader2/DIfElseSsm.hpp>
#include "DDefineSsm.hpp"
#include "DLambdaSsm.hpp"
#include "DProgressSsm.hpp"
#include "DIfElseSsm.hpp"
#include <xo/expression2/DConstant.hpp>
#include <xo/expression2/detail/IExpression_DConstant.hpp>
#include <xo/object2/DString.hpp>
@ -121,6 +123,10 @@ namespace xo {
this->on_def_token(tk, p_psm);
return;
case tokentype::tk_lambda:
this->on_lambda_token(tk, p_psm);
return;
case tokentype::tk_if:
this->on_if_token(tk, p_psm);
return;
@ -177,7 +183,6 @@ namespace xo {
case tokentype::tk_cmpeq:
case tokentype::tk_cmpne:
case tokentype::tk_type:
case tokentype::tk_lambda:
case tokentype::tk_then:
case tokentype::tk_else:
case tokentype::tk_let:
@ -241,6 +246,29 @@ namespace xo {
*/
}
void
DExprSeqState::on_lambda_token(const Token & tk,
ParserStateMachine * p_psm)
{
(void)tk;
switch (seqtype_) {
case exprseqtype::toplevel_interactive:
DLambdaSsm::start(p_psm);
return;
case exprseqtype::toplevel_batch:
/* lambda not allowed at top-level in batch mode */
break;
case exprseqtype::N:
assert(false); // unreachable
break;
}
p_psm->illegal_input_on_token("DExprSeqState::on_lambda_token",
tk,
this->get_expect_str());
}
void
DExprSeqState::on_if_token(const Token & tk,
ParserStateMachine * p_psm)