2005-08-09 Graydon Hoare <graydon@redhat.com>

	* staptree.{cxx,h}
	(target_symbol): New struct.
	(*_visitor::visit_target_symbol): Support it.
	(visitor::active_lvalues)
	(visitor::is_active_lvalue)
	(visitor::push_active_lvalue)
	(visitor::pop_active_lvalue): Support lvalue-detection.
	(delete_statement::visit)
	(pre_crement::visit)
	(post_crement::visit)
	(assignment::visit): Push and pop lvalue expressions.
	* elaborate.{cxx,h}
	(lvalule_aware_traversing_visitor): Remove class.
	(no_map_mutation_during_iteration_check)
	(mutated_map_collector): Update lvalue logic.
	(typeresolution_info::visit_target_symbol): Add, throw error.
	* parse.{cxx,h}
	(tt2str)
	(tok_is)
	(parser::expect_*)
	(parser::peek_*): New helpers.
	(parser::parse_symbol): Rewrite, support target_symbols.
	* translate.cxx (c_unparser::visit_target_symbol): Implement.
	* tapsets.cxx (var_expanding_copy_visitor): Update lvalue logic,
	change visit_symbol to visit_target_symbol.

1 files changed, 11 insertions, 0 deletions

diff --git a/parse.h b/parse.h
index 7e5b90a4..316f8258 100644
--- a/parse.h
+++ b/parse.h
@@ -92,6 +92,17 @@ private:
 
   const token* last_t; // the last value returned by peek() or next()
   const token* next_t; // lookahead token
+  
+  // expectations
+  const token* expect_known (token_type tt, std::string const & expected);
+  const token* expect_unknown (token_type tt, std::string & target);
+
+  // convenience forms
+  const token* expect_op (std::string const & expected);
+  const token* expect_kw (std::string const & expected);
+  const token* expect_ident (std::string & target);
+  bool peek_op (std::string const & op);
+  bool peek_kw (std::string const & kw);
 
   void print_error (const parse_error& pe);
   unsigned num_errors;