| /* |
| * Copyright Vladimir Prus 2003. |
| * Distributed under the Boost Software License, Version 1.0. |
| * (See accompanying file LICENSE_1_0.txt or copy at |
| * http://www.boost.org/LICENSE_1_0.txt) |
| */ |
| |
| #include "class.h" |
| |
| #include "constants.h" |
| #include "frames.h" |
| #include "hash.h" |
| #include "lists.h" |
| #include "object.h" |
| #include "rules.h" |
| #include "strings.h" |
| #include "variable.h" |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| |
| static struct hash * classes = 0; |
| |
| |
| static void check_defined( LIST * class_names ) |
| { |
| LISTITER iter = list_begin( class_names ); |
| LISTITER const end = list_end( class_names ); |
| for ( ; iter != end; iter = list_next( iter ) ) |
| { |
| if ( !hash_find( classes, list_item( iter ) ) ) |
| { |
| printf( "Class %s is not defined\n", object_str( list_item( iter ) ) |
| ); |
| abort(); |
| } |
| } |
| } |
| |
| |
| static OBJECT * class_module_name( OBJECT * declared_name ) |
| { |
| string name[ 1 ]; |
| OBJECT * result; |
| |
| string_new( name ); |
| string_append( name, "class@" ); |
| string_append( name, object_str( declared_name ) ); |
| |
| result = object_new( name->value ); |
| string_free( name ); |
| |
| return result; |
| } |
| |
| |
| struct import_base_data |
| { |
| OBJECT * base_name; |
| module_t * base_module; |
| module_t * class_module; |
| }; |
| |
| |
| static void import_base_rule( void * r_, void * d_ ) |
| { |
| RULE * r = (RULE *)r_; |
| RULE * ir1; |
| RULE * ir2; |
| struct import_base_data * d = (struct import_base_data *)d_; |
| OBJECT * qname; |
| |
| string qualified_name[ 1 ]; |
| string_new ( qualified_name ); |
| string_append ( qualified_name, object_str( d->base_name ) ); |
| string_push_back( qualified_name, '.' ); |
| string_append ( qualified_name, object_str( r->name ) ); |
| qname = object_new( qualified_name->value ); |
| string_free( qualified_name ); |
| |
| ir1 = import_rule( r, d->class_module, r->name ); |
| ir2 = import_rule( r, d->class_module, qname ); |
| |
| object_free( qname ); |
| |
| /* Copy 'exported' flag. */ |
| ir1->exported = ir2->exported = r->exported; |
| |
| /* If we are importing a class method, localize it. */ |
| if ( ( r->module == d->base_module ) || ( r->module->class_module && |
| ( r->module->class_module == d->base_module ) ) ) |
| { |
| rule_localize( ir1, d->class_module ); |
| rule_localize( ir2, d->class_module ); |
| } |
| } |
| |
| |
| /* |
| * For each exported rule 'n', declared in class module for base, imports that |
| * rule in 'class' as 'n' and as 'base.n'. Imported rules are localized and |
| * marked as exported. |
| */ |
| |
| static void import_base_rules( module_t * class_, OBJECT * base ) |
| { |
| OBJECT * module_name = class_module_name( base ); |
| module_t * base_module = bindmodule( module_name ); |
| LIST * imported; |
| struct import_base_data d; |
| d.base_name = base; |
| d.base_module = base_module; |
| d.class_module = class_; |
| object_free( module_name ); |
| |
| if ( base_module->rules ) |
| hashenumerate( base_module->rules, import_base_rule, &d ); |
| |
| imported = imported_modules( base_module ); |
| import_module( imported, class_ ); |
| list_free( imported ); |
| } |
| |
| |
| OBJECT * make_class_module( LIST * xname, LIST * bases, FRAME * frame ) |
| { |
| OBJECT * name = class_module_name( list_front( xname ) ); |
| OBJECT * * pp; |
| module_t * class_module = 0; |
| module_t * outer_module = frame->module; |
| int found; |
| |
| if ( !classes ) |
| classes = hashinit( sizeof( OBJECT * ), "classes" ); |
| |
| pp = (OBJECT * *)hash_insert( classes, list_front( xname ), &found ); |
| if ( !found ) |
| { |
| *pp = object_copy( list_front( xname ) ); |
| } |
| else |
| { |
| printf( "Class %s already defined\n", object_str( list_front( xname ) ) |
| ); |
| abort(); |
| } |
| check_defined( bases ); |
| |
| class_module = bindmodule( name ); |
| |
| { |
| /* |
| Initialize variables that Boost.Build inserts in every object. |
| We want to avoid creating the object's hash if it isn't needed. |
| */ |
| int num = class_module->num_fixed_variables; |
| module_add_fixed_var( class_module, constant_name, &num ); |
| module_add_fixed_var( class_module, constant_class, &num ); |
| module_set_fixed_variables( class_module, num ); |
| } |
| |
| var_set( class_module, constant_name, xname, VAR_SET ); |
| var_set( class_module, constant_bases, bases, VAR_SET ); |
| |
| { |
| LISTITER iter = list_begin( bases ); |
| LISTITER const end = list_end( bases ); |
| for ( ; iter != end; iter = list_next( iter ) ) |
| import_base_rules( class_module, list_item( iter ) ); |
| } |
| |
| return name; |
| } |
| |
| |
| static void free_class( void * xclass, void * data ) |
| { |
| object_free( *(OBJECT * *)xclass ); |
| } |
| |
| |
| void class_done( void ) |
| { |
| if ( classes ) |
| { |
| hashenumerate( classes, free_class, (void *)0 ); |
| hashdone( classes ); |
| classes = 0; |
| } |
| } |