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xo-reader2: cosmetic: non-executable content

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This commit is contained in:
Roland Conybeare 2026-01-22 15:37:20 -05:00
commit 164b09a3d7
1 changed files with 23 additions and 0 deletions
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23
xo-reader2/src/reader2/DProgressSsm.cpp
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@ -211,6 +211,29 @@ namespace xo {
DProgressSsm::on_semicolon_token(const Token & tk,
ParserStateMachine * p_psm)
{
/* note: implementation should parallel .on_rightparen_token() */
#ifdef NOT_YET
obj<AExpression> expr = this->assemble_expr(p_psm);
p_psm->pop_ssm();
p_psm->on_expr_with_semicolon(expr);
/* control here on input like:
* (1.234;
*
* a. '(' sets up stack [lparen_0:expect_rhs_expression]
* (see exprstate::on_leftparen())
* b. 1.234 pushes (in case operators) [lparen_0:expect_rhs_expression:expr_progress]
* (see exprstate::on_f64())
* c. semicolon completes expr_progress [lparen_0:expect_rhs_expression]
* deliver expresssion to expect_rhs_expression.on_expr_with_semicolon()
* (see exprstate::on_expr_with_semicolon())
* d. expr_rhs_expression forwards expression to [lparen_0]
* e. lparen_0 would advance to [lparen_1], but rejects semicolon
*/
#endif
p_psm->illegal_input_on_token("DProgressSsm::on_semicolon_token",
tk,
this->get_expect_str());