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When creating the context object in detail::skip(), don't create empty structs

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for symbol table tries, since they are never used.

Fixes #245
This commit is contained in:
Zach Laine
2025-10-13 18:18:01 -05:00
parent 41e891dc95
commit 1f5303c756
1 changed files with 45 additions and 10 deletions
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55
include/boost/parser/parser.hpp
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@@ -513,6 +513,23 @@ namespace boost { namespace parser {
globals_(nope_or_address(globals))
{}
parse_context(
std::bool_constant<DoTrace>,
std::bool_constant<UseCallbacks>,
I & first,
S last,
bool & success,
int & indent,
ErrorHandler const & error_handler,
GlobalState & globals) :
first_(first),
last_(last),
pass_(std::addressof(success)),
trace_indent_(std::addressof(indent)),
error_handler_(std::addressof(error_handler)),
globals_(nope_or_address(globals))
{}
// With callbacks.
parse_context(
std::bool_constant<DoTrace>,
@@ -768,6 +785,33 @@ namespace boost { namespace parser {
pending_symbol_table_operations);
}
template<
bool DoTrace,
bool UseCallbacks,
typename Iter,
typename Sentinel,
typename ErrorHandler>
auto make_context(
Iter first,
Sentinel last,
bool & success,
int & indent,
ErrorHandler const & error_handler,
nope const & n,
nope const &,
nope const &) noexcept
{
return parse_context(
std::bool_constant<DoTrace>{},
std::bool_constant<UseCallbacks>{},
first,
last,
success,
indent,
error_handler,
n);
}
template<
bool DoTrace,
bool UseCallbacks,
@@ -1519,17 +1563,8 @@ namespace boost { namespace parser {
int indent = 0;
rethrow_error_handler eh;
nope const n;
symbol_table_tries_t symbol_table_tries;
pending_symbol_table_operations_t pending_symbol_table_operations;
auto const context = detail::make_context<false, false>(
first,
last,
success,
indent,
eh,
n,
symbol_table_tries,
pending_symbol_table_operations);
first, last, success, indent, eh, n, n, n);
while (success) {
skip_(
first,