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xo-reader2: ParserStateMachine w/ separate allocator

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This commit is contained in:
Roland Conybeare 2026-01-18 20:37:15 -05:00
commit e38b61ce76
4 changed files with 24 additions and 11 deletions
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7
include/xo/reader2/ParserStateMachine.hpp
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@ -31,15 +31,16 @@ namespace xo {
using DArena = xo::mm::DArena;
public:
ParserStateMachine(const ArenaConfig & config);
ParserStateMachine(const ArenaConfig & config,
obj<AAllocator> * expr_alloc);
/** @defgroup scm-parserstatemachine-accessors accessor methods **/
///@{
bool debug_flag() const noexcept { return debug_flag_; }
ParserStack * stack() const noexcept { return stack_; }
obj<AAllocator> * expr_alloc() const noexcept { return expr_alloc_; }
const ParserResult & result() const noexcept { return result_; }
obj<AAllocator> expr_alloc() const noexcept { return expr_alloc_; }
/** true iff state machine is currently idle (at top-level) **/
bool is_at_toplevel() const noexcept;
@ -133,7 +134,7 @@ namespace xo {
* scenario, where top-level Expressions can be discarded
* once compiled.
**/
obj<AAllocator> expr_alloc_;
obj<AAllocator> * expr_alloc_ = nullptr;
/** current output from parser **/
ParserResult result_;

8
include/xo/reader2/SchematikaParser.hpp
View file

@ -8,6 +8,7 @@
#include "ParserStateMachine.hpp"
#include "ParserResult.hpp"
#include <xo/tokenizer2/Token.hpp>
#include <xo/alloc2/Allocator.hpp>
namespace xo {
namespace scm {
@ -153,6 +154,7 @@ namespace xo {
class SchematikaParser {
public:
using ArenaConfig = xo::mm::ArenaConfig;
using AAllocator = xo::mm::AAllocator;
using token_type = Token;
public:
@ -160,9 +162,13 @@ namespace xo {
* parser is ready to receive tokens via @ref include_token
*
* @p config arena configuration for parser memory
* @p expr_alloc allocator for schematika expressions.
* Probably shared with execution.
* @p debug_flag true to enable debug logging
**/
SchematikaParser(const ArenaConfig & config, bool debug_flag);
SchematikaParser(const ArenaConfig & config,
obj<AAllocator> * expr_alloc,
bool debug_flag);
bool debug_flag() const { return debug_flag_; }