Mercurial > hg > octave-terminal
changeset 8881:8ed42c679af5
after defining a script or function, clear local variables created for parsing
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Thu, 26 Feb 2009 13:58:47 -0500 |
parents | 078ca05e4ef8 |
children | 8633ae24a892 |
files | src/ChangeLog src/lex.h src/lex.l src/parse.y src/symtab.h |
diffstat | 5 files changed, 100 insertions(+), 15 deletions(-) [+] |
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--- a/src/ChangeLog +++ b/src/ChangeLog @@ -1,5 +1,25 @@ 2009-02-26 John W. Eaton <jwe@octave.org> + * symtab.h (symbol_table::symbol_record::symbol_record_rep::forced): + New static constant. + (symbol_table::symbol_record::symbol_record_rep::force_variable, + symbol_table::symbol_record::force_variable): New functions. + (symbol_table::symbol_record::symbol_record_rep::is_forced, + symbol_table::symbol_record::symbol_record_rep::mark_forced, + symbol_table::symbol_record::symbol_record_rep::unmark_forced, + symbol_table::symbol_record::symbol_record_rep::clear_forced, + symbol_table::symbol_record::is_forced, + symbol_table::symbol_record::mark_forced, + symbol_table::symbol_record::clear_forced, + symbol_table::symbol_record::unmark_forced): New fucntions. + * lex.h, lex.l (force_local_variable): Delete. + (handle_identifier): Call symbol_table::force_variable instead of + force_local_variable. + * parse.y (make_script): Call symbol_table:clear_forced_variables + after defining script. + (finish_function): Call symbol_table::clear_forced_variables + instead of symbol_table::clear_variables. + * DLD-FUNCTIONS/chol.cc: Correct spelling of CHOLMOD in tests. * version.h (OCTAVE_VERSION): Now 3.1.53+.
--- a/src/lex.h +++ b/src/lex.h @@ -54,8 +54,6 @@ extern void prep_lexer_for_script (void); -extern void force_local_variable (const std::string& name); - // For communication between the lexer and parser. class
--- a/src/lex.l +++ b/src/lex.l @@ -1636,15 +1636,6 @@ != lexer_flags.pending_local_variables.end ())); } -void -force_local_variable (const std::string& name) -{ - octave_value& val = symbol_table::varref (name); - - if (! val.is_defined ()) - val = Matrix (); -} - static std::string grab_block_comment (stream_reader& reader, bool& eof) { @@ -3206,7 +3197,7 @@ || (lexer_flags.looking_at_parameter_list && ! lexer_flags.looking_at_initializer_expression)) { - force_local_variable (tok); + symbol_table::force_variable (tok); } else if (lexer_flags.looking_at_matrix_or_assign_lhs) {
--- a/src/parse.y +++ b/src/parse.y @@ -840,7 +840,7 @@ p != lexer_flags.pending_local_variables.end (); p++) { - force_local_variable (*p); + symbol_table::force_variable (*p); } lexer_flags.pending_local_variables.clear (); } @@ -2495,6 +2495,8 @@ script->stash_fcn_file_time (now); curr_fcn_ptr = script; + + symbol_table::clear_forced_variables (); } // Begin defining a function. @@ -2677,7 +2679,7 @@ // Clear any local variables that may have been added while // parsing (for example, by force_local_variable in lex.l). - symbol_table::clear_variables (fcn->scope ()); + symbol_table::clear_forced_variables (fcn->scope ()); } return retval;
--- a/src/symtab.h +++ b/src/symtab.h @@ -182,6 +182,9 @@ // not cleared at function exit static const unsigned int persistent = 64; + // temporary variables forced into symbol table for parsing + static const unsigned int forced = 128; + private: class @@ -196,6 +199,17 @@ value_stack.push_back (v); } + void force_variable (context_id context) + { + octave_value& val = varref (context); + + if (! val.is_defined ()) + { + val = Matrix (); + mark_forced (); + } + } + octave_value& varref (context_id context) { if (is_global ()) @@ -279,6 +293,15 @@ } } + void clear_forced (void) + { + if (is_forced ()) + { + varref (xcurrent_context) = octave_value (); + unmark_forced (); + } + } + bool is_defined (context_id context) const { return varval (context).is_defined (); @@ -296,6 +319,7 @@ bool is_inherited (void) const { return storage_class & inherited; } bool is_global (void) const { return storage_class & global; } bool is_persistent (void) const { return storage_class & persistent; } + bool is_forced (void) const { return storage_class & forced; } void mark_local (void) { storage_class |= local; } void mark_automatic (void) { storage_class |= automatic; } @@ -316,6 +340,7 @@ else storage_class |= persistent; } + void mark_forced (void) { storage_class |= forced; } void unmark_local (void) { storage_class &= ~local; } void unmark_automatic (void) { storage_class &= ~automatic; } @@ -324,6 +349,7 @@ void unmark_inherited (void) { storage_class &= ~inherited; } void unmark_global (void) { storage_class &= ~global; } void unmark_persistent (void) { storage_class &= ~persistent; } + void unmark_forced (void) { storage_class &= ~forced; } void init_persistent (void) { @@ -407,6 +433,11 @@ find (tree_argument_list *args, const string_vector& arg_names, octave_value_list& evaluated_args, bool& args_evaluated) const; + void force_variable (context_id context = xcurrent_context) + { + rep->force_variable (context); + } + octave_value& varref (context_id context = xcurrent_context) { return rep->varref (context); @@ -423,6 +454,8 @@ void clear (void) { rep->clear (); } + void clear_forced (void) { rep->clear_forced (); } + bool is_defined (context_id context = xcurrent_context) const { return rep->is_defined (context); @@ -440,6 +473,7 @@ bool is_hidden (void) const { return rep->is_hidden (); } bool is_inherited (void) const { return rep->is_inherited (); } bool is_persistent (void) const { return rep->is_persistent (); } + bool is_forced (void) const { return rep->is_forced (); } void mark_local (void) { rep->mark_local (); } void mark_automatic (void) { rep->mark_automatic (); } @@ -448,6 +482,7 @@ void mark_inherited (void) { rep->mark_inherited (); } void mark_global (void) { rep->mark_global (); } void mark_persistent (void) { rep->mark_persistent (); } + void mark_forced (void) { rep->mark_forced (); } void unmark_local (void) { rep->unmark_local (); } void unmark_automatic (void) { rep->unmark_automatic (); } @@ -456,6 +491,7 @@ void unmark_inherited (void) { rep->unmark_inherited (); } void unmark_global (void) { rep->unmark_global (); } void unmark_persistent (void) { rep->unmark_persistent (); } + void unmark_forced (void) { rep->unmark_forced (); } void init_persistent (void) { rep->init_persistent (); } @@ -821,7 +857,7 @@ } void clear (void) { rep->clear (); } - + void clear_user_function (void) { rep->clear_user_function (); } void clear_mex_function (void) { rep->clear_mex_function (); } @@ -1051,6 +1087,18 @@ return inst ? inst->do_insert (name) : foobar; } + static void force_variable (const std::string& name, + scope_id scope = xcurrent_scope, + context_id context = xcurrent_context) + { + assert (xcurrent_context == 0); + + symbol_table *inst = get_instance (scope); + + if (inst) + inst->do_force_variable (name, context); + } + static octave_value& varref (const std::string& name, scope_id scope = xcurrent_scope, context_id context = xcurrent_context) @@ -1299,6 +1347,14 @@ inst->do_clear_variables (); } + static void clear_forced_variables (scope_id scope = xcurrent_scope) + { + symbol_table *inst = get_instance (scope); + + if (inst) + inst->do_clear_forced_variables (); + } + // For unwind_protect. static void clear_variables (void *) { clear_variables (); } @@ -1998,6 +2054,18 @@ ? (table[name] = symbol_record (name)) : p->second; } + void do_force_variable (const std::string& name, context_id context) + { + table_iterator p = table.find (name); + + if (p == table.end ()) + { + symbol_record& sr = do_insert (name); + + sr.force_variable (context); + } + } + octave_value& do_varref (const std::string& name, context_id context) { table_iterator p = table.find (name); @@ -2081,6 +2149,12 @@ p->second.clear (); } + void do_clear_forced_variables (void) + { + for (table_iterator p = table.begin (); p != table.end (); p++) + p->second.clear_forced (); + } + void do_clear_global (const std::string& name) { table_iterator p = table.find (name);