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Copy pathclasses_python.c
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2275 lines (2096 loc) · 76.2 KB
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/*
** Fed-x parser output module for generating C++ class definitions
** December 5, 1989
** release 2 17-Feb-1992
** release 3 March 1993
** release 4 December 1993
** K. C. Morris
**
** Development of Fed-x was funded by the United States Government,
** and is not subject to copyright.
*******************************************************************
The conventions used in this binding follow the proposed specification
for the STEP Standard Data Access Interface as defined in document
N350 ( August 31, 1993 ) of ISO 10303 TC184/SC4/WG7.
*******************************************************************/
/******************************************************************
*** The functions in this file generate the C++ code for ENTITY **
*** classes, TYPEs, and TypeDescriptors. ***
** **/
/* this is used to add new dictionary calls */
/* #define NEWDICT */
#include <stdlib.h>
#include "classes.h"
#ifdef __STDC__
#include <stdarg.h>
#else
#include <varargs.h>
#endif
#define EXPRESSION_out(e,p,f) EXPRESSION__out(e,p,OP_UNKNOWN,f)
#define EXPRESSIONop2_out(oe,string,paren,pad,f) \
EXPRESSIONop2__out(oe,string,paren,pad,OP_UNKNOWN,f)
#define EXPRESSIONop_out(oe,paren,f) EXPRESSIONop__out(oe,paren,OP_UNKNOWN,f)
#define ATTRIBUTE_INITIALIZER_out(e,p,f) ATTRIBUTE_INITIALIZER__out(e,p,OP_UNKNOWN,f)
#define ATTRIBUTE_INITIALIZERop2_out(oe,string,paren,pad,f) \
ATTRIBUTE_INITIALIZERop2__out(oe,string,paren,pad,OP_UNKNOWN,f)
#define ATTRIBUTE_INITIALIZERop_out(oe,paren,f) ATTRIBUTE_INITIALIZERop__out(oe,paren,OP_UNKNOWN,f)
#define PAD 1
#define NOPAD 0
int isAggregateType( const Type t );
int isAggregate( Variable a );
Variable VARis_type_shifter( Variable a );
const char * ENTITYget_CORBAname( Entity ent );
const char * GetTypeDescriptorName( Type t );
int multiple_inheritance = 1;
int print_logging = 0;
int corba_binding = 0;
int old_accessors = 0;
/* several classes use attr_count for naming attr dictionary entry
variables. All but the last function generating code for a particular
entity increment a copy of it for naming each attr in the entity.
Here are the functions:
ENTITYhead_print (Entity entity, FILE* file,Schema schema)
LIBdescribe_entity (Entity entity, FILE* file, Schema schema)
LIBcopy_constructor (Entity ent, FILE* file)
LIBstructor_print (Entity entity, FILE* file, Schema schema)
LIBstructor_print_w_args (Entity entity, FILE* file, Schema schema)
ENTITYincode_print (Entity entity, FILE* file,Schema schema)
DAS
*/
static int attr_count; /* number each attr to avoid inter-entity clashes */
static int type_count; /* number each temporary type for same reason above */
extern int any_duplicates_in_select( const Linked_List list );
extern int unique_types( const Linked_List list );
extern char * non_unique_types_string( const Type type );
static void printEnumCreateHdr( FILE *, const Type );
static void printEnumCreateBody( FILE *, const Type );
static void printEnumAggrCrHdr( FILE *, const Type );
static void printEnumAggrCrBody( FILE *, const Type );
void printAccessHookFriend( FILE *, const char * );
void printAccessHookHdr( FILE *, const char * );
int TYPEget_RefTypeVarNm( const Type t, char * buf, Schema schema );
void TypeBody_Description( TypeBody body, char * buf );
void STATEMENTSPrint( Linked_List stmts , int indent_level, FILE * file );
void STATEMENTPrint( Statement s, int indent_level, FILE * file );
void STATEMENTlist_out( Linked_List stmts, int indent_level, FILE * file );
void EXPRESSION__out( Expression e, int paren, int previous_op , FILE * file );
void EXPRESSIONop__out( struct Op_Subexpression * oe, int paren, int previous_op , FILE * file );
void EXPRESSIONop1_out( struct Op_Subexpression * eo, char * opcode, int paren, FILE * file );
void EXPRESSIONop2__out( struct Op_Subexpression * eo, char * opcode, int paren, int pad, int previous_op, FILE * file );
void ATTRIBUTE_INITIALIZER__out( Expression e, int paren, int previous_op , FILE * file );
void ATTRIBUTE_INITIALIZERop__out( struct Op_Subexpression * oe, int paren, int previous_op , FILE * file );
void ATTRIBUTE_INITIALIZERop1_out( struct Op_Subexpression * eo, char * opcode, int paren, FILE * file );
void ATTRIBUTE_INITIALIZERop2__out( struct Op_Subexpression * eo, char * opcode, int paren, int pad, int previous_op, FILE * file );
void CASEout( struct Case_Statement_ *c, int level, FILE * file );
void LOOPpyout( struct Loop_ *loop, int level, FILE * file );
void WHEREPrint( Linked_List wheres, int level , FILE * file );
/*
Turn the string into a new string that will be printed the same as the
original string. That is, turn backslash into a quoted backslash and
turn \n into "\n" (i.e. 2 chars).
*/
char * format_for_stringout( char * orig_buf, char * return_buf ) {
char * optr = orig_buf;
char * rptr = return_buf;
while( *optr ) {
if( *optr == '\n' ) {
*rptr = '\\';
rptr++;
*rptr = 'n';
} else if( *optr == '\\' ) {
*rptr = '\\';
rptr++;
*rptr = '\\';
} else {
*rptr = *optr;
}
rptr++;
optr++;
}
*rptr = '\0';
return return_buf;
}
char * strliteral_py_dup( char * orig_buf ) {
char * new_buf = strdup(orig_buf);
char * tmp = new_buf;
while ((tmp = strstr(tmp, "\\x9"))) {
tmp++ ; *tmp = 't'; tmp++;
memmove(tmp, tmp+1, strlen(tmp));
}
tmp = new_buf;
while ((tmp = strstr(tmp, "\\xA"))) {
tmp++ ; *tmp = 'n'; tmp++;
memmove(tmp, tmp+1, strlen(tmp));
}
tmp = new_buf;
while ((tmp = strstr(tmp, "\\xD"))) {
tmp++ ; *tmp = 'r'; tmp++;
memmove(tmp, tmp+1, strlen(tmp));
}
return new_buf;
}
void
USEREFout( Schema schema, Dictionary refdict, Linked_List reflist, char * type, FILE * file ) {
Dictionary dict;
DictionaryEntry de;
struct Rename * r;
Linked_List list;
char td_name[BUFSIZ];
char sch_name[BUFSIZ];
strncpy( sch_name, PrettyTmpName( SCHEMAget_name( schema ) ), BUFSIZ );
LISTdo( reflist, s, Schema ) {
fprintf( file, "\t// %s FROM %s; (all objects)\n", type, s->symbol.name );
fprintf( file, "\tis = new Interface_spec(\"%s\",\"%s\");\n", sch_name, PrettyTmpName( s->symbol.name ) );
fprintf( file, "\tis->all_objects_(1);\n" );
if( !strcmp( type, "USE" ) ) {
fprintf( file, "\t%s%s->use_interface_list_()->Append(is);\n", SCHEMA_PREFIX, SCHEMAget_name( schema ) );
} else {
fprintf( file, "\t%s%s->ref_interface_list_()->Append(is);\n", SCHEMA_PREFIX, SCHEMAget_name( schema ) );
}
}
LISTod
if( !refdict ) {
return;
}
dict = DICTcreate( 10 );
/* sort each list by schema */
/* step 1: for each entry, store it in a schema-specific list */
DICTdo_init( refdict, &de );
while( 0 != ( r = ( struct Rename * )DICTdo( &de ) ) ) {
Linked_List list;
list = ( Linked_List )DICTlookup( dict, r->schema->symbol.name );
if( !list ) {
list = LISTcreate();
DICTdefine( dict, r->schema->symbol.name, list,
( Symbol * )0, OBJ_UNKNOWN );
}
LISTadd_last( list, r );
}
/* step 2: for each list, print out the renames */
DICTdo_init( dict, &de );
while( 0 != ( list = ( Linked_List )DICTdo( &de ) ) ) {
bool first_time = true;
LISTdo( list, r, struct Rename * )
/*
Interface_spec_ptr is;
Used_item_ptr ui;
is = new Interface_spec(const char * cur_sch_id);
schemadescriptor->use_interface_list_()->Append(is);
ui = new Used_item(TypeDescriptor *ld, const char *oi, const char *ni) ;
is->_explicit_items->Append(ui);
*/
/* note: SCHEMAget_name(r->schema) equals r->schema->symbol.name) */
if( first_time ) {
fprintf( file, "\t// %s FROM %s (selected objects)\n", type, r->schema->symbol.name );
fprintf( file, "\tis = new Interface_spec(\"%s\",\"%s\");\n", sch_name, PrettyTmpName( r->schema->symbol.name ) );
if( !strcmp( type, "USE" ) ) {
fprintf( file, "\t%s%s->use_interface_list_()->Append(is);\n", SCHEMA_PREFIX, SCHEMAget_name( schema ) );
} else {
fprintf( file, "\t%s%s->ref_interface_list_()->Append(is);\n", SCHEMA_PREFIX, SCHEMAget_name( schema ) );
}
}
if( first_time ) {
first_time = false;
}
if( r->type == OBJ_TYPE ) {
sprintf( td_name, "%s", TYPEtd_name( ( Type )r->object ) );
} else if( r->type == OBJ_FUNCTION ) {
sprintf( td_name, "/* Function not implemented */ 0" );
} else if( r->type == OBJ_PROCEDURE ) {
sprintf( td_name, "/* Procedure not implemented */ 0" );
} else if( r->type == OBJ_RULE ) {
sprintf( td_name, "/* Rule not implemented */ 0" );
} else if( r->type == OBJ_ENTITY ) {
sprintf( td_name, "%s%s%s",
SCOPEget_name( ( ( Entity )r->object )->superscope ),
ENT_PREFIX, ENTITYget_name( ( Entity )r->object ) );
} else {
sprintf( td_name, "/* %c from OBJ_? in expbasic.h not implemented */ 0", r->type );
}
if( r->old != r->nnew ) {
fprintf( file, "\t// object %s AS %s\n", r->old->name,
r->nnew->name );
if( !strcmp( type, "USE" ) ) {
fprintf( file, "\tui = new Used_item(\"%s\", %s, \"%s\", \"%s\");\n", r->schema->symbol.name, td_name, r->old->name, r->nnew->name );
fprintf( file, "\tis->explicit_items_()->Append(ui);\n" );
fprintf( file, "\t%s%s->interface_().explicit_items_()->Append(ui);\n", SCHEMA_PREFIX, SCHEMAget_name( schema ) );
} else {
fprintf( file, "\tri = new Referenced_item(\"%s\", %s, \"%s\", \"%s\");\n", r->schema->symbol.name, td_name, r->old->name, r->nnew->name );
fprintf( file, "\tis->explicit_items_()->Append(ri);\n" );
fprintf( file, "\t%s%s->interface_().explicit_items_()->Append(ri);\n", SCHEMA_PREFIX, SCHEMAget_name( schema ) );
}
} else {
fprintf( file, "\t// object %s\n", r->old->name );
if( !strcmp( type, "USE" ) ) {
fprintf( file, "\tui = new Used_item(\"%s\", %s, \"\", \"%s\");\n", r->schema->symbol.name, td_name, r->nnew->name );
fprintf( file, "\tis->explicit_items_()->Append(ui);\n" );
fprintf( file, "\t%s%s->interface_().explicit_items_()->Append(ui);\n", SCHEMA_PREFIX, SCHEMAget_name( schema ) );
} else {
fprintf( file, "\tri = new Referenced_item(\"%s\", %s, \"\", \"%s\");\n", r->schema->symbol.name, td_name, r->nnew->name );
fprintf( file, "\tis->explicit_items_()->Append(ri);\n" );
fprintf( file, "\t%s%s->interface_().explicit_items_()->Append(ri);\n", SCHEMA_PREFIX, SCHEMAget_name( schema ) );
}
}
LISTod
}
HASHdestroy( dict );
}
int Handle_FedPlus_Args( int i, char * arg ) {
(void) arg; /* unused param */
if( ( ( char )i == 's' ) || ( ( char )i == 'S' ) ) {
multiple_inheritance = 0;
}
if( ( ( char )i == 'a' ) || ( ( char )i == 'A' ) ) {
old_accessors = 1;
}
if( ( char )i == 'L' ) {
print_logging = 1;
}
if( ( ( char )i == 'c' ) || ( ( char )i == 'C' ) ) {
corba_binding = 1;
}
return 0;
}
bool is_python_keyword( char * word ) {
bool python_keyword = false;
if( strcmp( word, "class" ) == 0 ) {
python_keyword = true;
}
return python_keyword;
}
/******************************************************************
** Procedure: generate_attribute_name
** Parameters: Variable a, an Express attribute; char *out, the C++ name
** Description: converts an Express name into the corresponding C++ name
** see relation to generate_dict_attr_name() DAS
** Side Effects:
** Status: complete 8/5/93
******************************************************************/
char *
generate_attribute_name( Variable a, char * out ) {
char * temp, *p, *q;
int j;
temp = EXPRto_string( VARget_name( a ) );
p = temp;
if( ! strncmp( StrToLower( p ), "self\\", 5 ) ) {
p = p + 5;
}
/* copy p to out */
/* DAR - fixed so that '\n's removed */
for( j = 0, q = out; j < BUFSIZ; p++ ) {
/* copy p to out, 1 char at time. Skip \n's and spaces, convert */
/* '.' to '_', and convert to lowercase. */
if( ( *p != '\n' ) && ( *p != ' ' ) ) {
if( *p == '.' ) {
*q = '_';
} else {
*q = tolower( *p );
}
j++;
q++;
}
}
free( temp );
/* python generator : we should prevend an attr name to be a python reserved keyword */
if( is_python_keyword( out ) ) {
strcat( out, "_" );
}
return out;
}
char *
generate_attribute_func_name( Variable a, char * out ) {
generate_attribute_name( a, out );
strncpy( out, CheckWord( StrToLower( out ) ), BUFSIZ );
if( old_accessors ) {
out[0] = toupper( out[0] );
} else {
out[strlen( out )] = '_';
}
return out;
}
/******************************************************************
** Procedure: generate_dict_attr_name
** Parameters: Variable a, an Express attribute; char *out, the C++ name
** Description: converts an Express name into the corresponding SCL
** dictionary name. The difference between this and the
** generate_attribute_name() function is that for derived
** attributes the name will have the form <parent>.<attr_name>
** where <parent> is the name of the parent containing the
** attribute being derived and <attr_name> is the name of the
** derived attribute. Both <parent> and <attr_name> may
** contain underscores but <parent> and <attr_name> will be
** separated by a period. generate_attribute_name() generates
** the same name except <parent> and <attr_name> will be
** separated by an underscore since it is illegal to have a
** period in a variable name. This function is used for the
** dictionary name (a string) and generate_attribute_name()
** will be used for variable and access function names.
** Side Effects:
** Status: complete 8/5/93
******************************************************************/
char *
generate_dict_attr_name( Variable a, char * out ) {
char * temp, *p, *q;
int j;
temp = EXPRto_string( VARget_name( a ) );
p = temp;
if( ! strncmp( StrToLower( p ), "self\\", 5 ) ) {
p = p + 5;
}
/* copy p to out */
strncpy( out, StrToLower( p ), BUFSIZ );
/* DAR - fixed so that '\n's removed */
for( j = 0, q = out; j < BUFSIZ; p++ ) {
/* copy p to out, 1 char at time. Skip \n's, and convert to lc. */
if( *p != '\n' ) {
*q = tolower( *p );
j++;
q++;
}
}
free( temp );
return out;
}
/******************************************************************
** Entity Generation */
/******************************************************************
** Procedure: ENTITYhead_print
** Parameters: const Entity entity
** FILE* file -- file being written to
** Returns:
** Description: prints the beginning of the entity class definition for the
** c++ code and the declaration of extern attr descriptors for
** the registry. In the .h file
** Side Effects: generates c++ code
** Status: good 1/15/91
** added registry things 12-Apr-1993
******************************************************************/
void
ENTITYhead_print( Entity entity, FILE * file, Schema schema ) {
char entnm [BUFSIZ];
char attrnm [BUFSIZ];
Linked_List list;
int attr_count_tmp = attr_count;
Entity super = 0;
strncpy( entnm, ENTITYget_classname( entity ), BUFSIZ );
entnm[BUFSIZ-1] = '\0';
/* DAS print all the attr descriptors and inverse attr descriptors for an
entity as extern defs in the .h file. */
LISTdo( ENTITYget_attributes( entity ), v, Variable )
generate_attribute_name( v, attrnm );
fprintf( file, "extern %s *%s%d%s%s;\n",
( VARget_inverse( v ) ? "Inverse_attribute" : ( VARis_derived( v ) ? "Derived_attribute" : "AttrDescriptor" ) ),
ATTR_PREFIX, attr_count_tmp++,
( VARis_derived( v ) ? "D" : ( VARis_type_shifter( v ) ? "R" : ( VARget_inverse( v ) ? "I" : "" ) ) ),
attrnm );
LISTod
fprintf( file, "\nclass %s : ", entnm );
/* inherit from either supertype entity class or root class of
all - i.e. SCLP23(Application_instance) */
if( multiple_inheritance ) {
list = ENTITYget_supertypes( entity );
if( ! LISTempty( list ) ) {
super = ( Entity )LISTpeek_first( list );
}
} else { /* the old way */
super = ENTITYput_superclass( entity );
}
if( super ) {
fprintf( file, " public %s {\n ", ENTITYget_classname( super ) );
} else {
fprintf( file, " public SCLP23(Application_instance) {\n" );
}
}
/******************************************************************
** Procedure: DataMemberPrint
** Parameters: const Entity entity -- entity being processed
** FILE* file -- file being written to
** Returns:
** Description: prints out the data members for an entity's c++ class
** definition
** Side Effects: generates c++ code
** Status: ok 1/15/91
******************************************************************/
void
DataMemberPrint( Entity entity, FILE * file, Schema schema ) {
}
/******************************************************************
** Procedure: MemberFunctionSign
** Parameters: Entity *entity -- entity being processed
** FILE* file -- file being written to
** Returns:
** Description: prints the signature for member functions
of an entity's class definition
** DAS prints the end of the entity class def and the creation
** function that the EntityTypeDescriptor uses.
** Side Effects: prints c++ code to a file
** Status: ok 1/1/5/91
** updated 17-Feb-1992 to print only the signature
and not the function definitions
******************************************************************/
void
MemberFunctionSign( Entity entity, FILE * file ) {
}
/******************************************************************
** Procedure: LIBdescribe_entity (entity, file, schema)
** Parameters: Entity entity -- entity being processed
** FILE* file -- file being written to
** Schema schema -- schema being processed
** Returns:
** Description: declares the global pointer to the EntityDescriptor
representing a particular entity
** DAS also prints the attr descs and inverse attr descs
** This function creates the storage space for the externs defs
** that were defined in the .h file. These global vars go in
** the .cc file.
** Side Effects: prints c++ code to a file
** Status: ok 12-Apr-1993
******************************************************************/
char *
GetAttrTypeName( Type t ) {
char * attr_type;
if( TYPEis_string( t ) ) {
attr_type = "STRING";
} else if( TYPEis_logical( t ) ) {
attr_type = "LOGICAL";
} else if( TYPEis_boolean( t ) ) {
attr_type = "BOOLEAN";
} else if( TYPEis_real( t ) ) {
attr_type = "REAL";
} else if( TYPEis_integer( t ) ) {
attr_type = "INTEGER";
} else {
attr_type = TYPEget_name( t );
}
return attr_type;
}
/*
*
* A function that prints BAG, ARRAY, SET or LIST to the file
*
*/
void
print_aggregate_type( FILE * file, Type t ) {
switch( TYPEget_body( t )->type ) {
case array_:
fprintf( file, "ARRAY" );
break;
case bag_:
fprintf( file, "BAG" );
break;
case set_:
fprintf( file, "SET" );
break;
case list_:
fprintf( file, "LIST" );
break;
default:
break;
}
}
/*
*
* A recursive function to export aggregate to python
*
*/
void
process_aggregate( FILE * file, Type t ) {
Expression lower = AGGR_TYPEget_lower_limit( t );
char * lower_str = EXPRto_string( lower );
Expression upper = AGGR_TYPEget_upper_limit( t );
char * upper_str = NULL;
Type base_type;
if( upper == LITERAL_INFINITY ) {
upper_str = "None";
} else {
upper_str = EXPRto_string( upper );
}
switch( TYPEget_body( t )->type ) {
case array_:
fprintf( file, "ARRAY" );
break;
case bag_:
fprintf( file, "BAG" );
break;
case set_:
fprintf( file, "SET" );
break;
case list_:
fprintf( file, "LIST" );
break;
default:
break;
}
fprintf( file, "(%s,%s,", lower_str, upper_str );
/*write base type */
base_type = TYPEget_base_type( t );
if( TYPEis_aggregate( base_type ) ) {
process_aggregate( file, base_type );
fprintf( file, ")" ); /*close parenthesis */
} else {
char * array_base_type = GetAttrTypeName( TYPEget_base_type( t ) );
fprintf( file, "'%s', scope = schema_scope)", array_base_type );
}
}
int count_supertypes(Entity f) {
int top_count;
int child_count;
Linked_List list;
list = ENTITYget_supertypes(f);
top_count = 0;
LISTdo( list, e, Entity )
child_count = 1;
child_count += count_supertypes(e);
if (child_count > top_count)
top_count = child_count;
LISTod;
return top_count;
}
int
cmp_python_mro( Entity e1, Entity e2 ) {
int e1_chain_len, e2_chain_len;
/* TODO: This should do something more intelligent */
e1_chain_len = count_supertypes(e1);
e2_chain_len = count_supertypes(e2);
if (e1_chain_len == e2_chain_len) {
return 0;
} else if (e1_chain_len > e2_chain_len) {
return 1;
} else {
return -1;
}
}
void
LIBdescribe_entity( Entity entity, FILE * file, Schema schema ) {
int attr_count_tmp = attr_count;
char attrnm [BUFSIZ], parent_attrnm[BUFSIZ];
char * attr_type;
bool generate_constructor = true; /*by default, generates a python constructor */
bool single_inheritance = false;
bool multiple_inheritance = false;
bool rename_python_property = false;
Type t;
Linked_List list;
int num_parent = 0;
int num_derived_inverse_attr = 0;
int index_attribute = 0;
/* class name
need to use new-style classes for properties to work correctly
so class must inherit from object */
if( is_python_keyword( ENTITYget_name( entity ) ) ) {
fprintf( file, "class %s_(", ENTITYget_name( entity ) );
} else {
fprintf( file, "class %s(", ENTITYget_name( entity ) );
}
/*
* Look for inheritance and super classes
*/
list = ENTITYget_supertypes( entity );
LISTsort(list, cmp_python_mro);
num_parent = 0;
if( ! LISTempty( list ) ) {
LISTdo( list, e, Entity )
/* if there\'s no super class yet,
or the super class doesn\'t have any attributes
*/
if( num_parent > 0 ) {
fprintf( file, "," ); /*separator for parent classes names */
}
if( is_python_keyword( ENTITYget_name( e ) ) ) {
fprintf( file, "%s_", ENTITYget_name( e ) );
} else {
fprintf( file, "%s", ENTITYget_name( e ) );
}
num_parent++;
LISTod;
if( num_parent == 1 ) {
single_inheritance = true;
multiple_inheritance = false;
} else {
single_inheritance = false;
multiple_inheritance = true;
}
} else {
/*inherit from BaseEntityClass by default, in order to enable decorators */
/* as well as advanced __repr__ feature */
fprintf( file, "BaseEntityClass" );
}
fprintf( file, "):\n" );
/*
* Write docstrings in a Sphinx compliant manner
*/
fprintf( file, "\t'''Entity %s definition.\n", ENTITYget_name( entity ) );
LISTdo( ENTITYget_attributes( entity ), v, Variable )
generate_attribute_name( v, attrnm );
t = VARget_type( v );
fprintf( file, "\n\t:param %s\n", attrnm );
fprintf( file, "\t:type %s:", attrnm );
if( TYPEis_aggregate( t ) ) {
process_aggregate( file, t );
fprintf( file, "\n" );
} else {
if( TYPEget_name( t ) == NULL ) {
attr_type = GetAttrTypeName( t );
} else {
attr_type = TYPEget_name( t );
}
fprintf( file, "%s\n", attr_type );
}
attr_count_tmp++;
LISTod
fprintf( file, "\t'''\n" );
/*
* Before writing constructor, check if this entity has any attribute
* other wise just a 'pass' statement is enough
*/
attr_count_tmp = 0;
num_derived_inverse_attr = 0;
LISTdo( ENTITYget_attributes( entity ), v, Variable )
if( VARis_derived( v ) || VARget_inverse( v ) ) {
num_derived_inverse_attr++;
} else {
attr_count_tmp++;
}
LISTod
if( ( attr_count_tmp == 0 ) && !single_inheritance && !multiple_inheritance ) {
fprintf( file, "\t# This class does not define any attribute.\n" );
fprintf( file, "\tpass\n" );
generate_constructor = false;
}
if( false ) {}
else {
/*
* write class constructor
*/
if( generate_constructor ) {
fprintf( file, "\tdef __init__( self , " );
}
/* if inheritance, first write the inherited parameters */
list = ENTITYget_supertypes( entity );
num_parent = 0;
index_attribute = 0;
if( ! LISTempty( list ) ) {
LISTdo( list, e, Entity )
/* search attribute names for superclass */
LISTdo( ENTITYget_all_attributes( e ), v2, Variable )
generate_attribute_name( v2, parent_attrnm );
if( !VARis_derived( v2 ) && !VARget_inverse( v2 ) ) {
fprintf( file, "inherited%i__%s , ", index_attribute, parent_attrnm );
index_attribute++;
}
LISTod
num_parent++;
LISTod;
}
LISTdo( ENTITYget_attributes( entity ), v, Variable )
generate_attribute_name( v, attrnm );
if( !VARis_derived( v ) && !VARget_inverse( v ) ) {
fprintf( file, "%s,", attrnm );
}
LISTod
/* close constructor method */
if( generate_constructor ) {
fprintf( file, " ):\n" );
}
/** if inheritance, first init base class **/
list = ENTITYget_supertypes( entity );
index_attribute = 0;
if( ! LISTempty( list ) ) {
LISTdo( list, e, Entity )
if (is_python_keyword(ENTITYget_name( e ))) {
fprintf( file, "\t\t%s_.__init__(self , ", ENTITYget_name( e ) );
} else {
fprintf( file, "\t\t%s.__init__(self , ", ENTITYget_name( e ) );
}
/* search and write attribute names for superclass */
LISTdo( ENTITYget_all_attributes( e ), v2, Variable )
generate_attribute_name( v2, parent_attrnm );
if( !VARis_derived( v2 ) && !VARget_inverse( v2 ) ) {
fprintf( file, "inherited%i__%s , ", index_attribute, parent_attrnm );
index_attribute++;
}
LISTod
num_parent++;
fprintf( file, ")\n" ); /*separator for parent classes names */
LISTod;
}
/* init variables in constructor */
LISTdo( ENTITYget_attributes( entity ), v, Variable )
generate_attribute_name( v, attrnm );
if( !VARis_derived( v ) && !VARget_inverse( v ) ) {
fprintf( file, "\t\tself._%s = %s\n", attrnm, attrnm );
}
/*attr_count_tmp++; */
LISTod
/*
* write attributes as python properties
*/
LISTdo( ENTITYget_attributes( entity ), v, Variable )
generate_attribute_name( v, attrnm );
fprintf( file, "\n\t@property\n" );
if ( !strcmp(attrnm, "property") ) {
fprintf( file, "\tdef __%s(self):\n", attrnm );
rename_python_property = true;
} else {
fprintf( file, "\tdef %s(self):\n", attrnm );
}
/* fget */
if( !VARis_derived( v ) ) {
fprintf( file, "\t\treturn self._%s\n", attrnm );
} else {
/* evaluation of attribute */
fprintf( file, "\t\tattribute_eval = " );
/* outputs expression initializer */
ATTRIBUTE_INITIALIZER_out( v->initializer, 1, file );
/* then returns the value */
fprintf( file, "\n\t\treturn attribute_eval\n" );
}
/* fset */
if ( !strcmp(attrnm, "property") ) {
fprintf( file, "\t@__%s.setter\n", attrnm );
fprintf( file, "\tdef __%s(self, value):\n", attrnm );
} else {
fprintf( file, "\t@%s.setter\n", attrnm );
fprintf( file, "\tdef %s(self, value):\n", attrnm );
}
t = VARget_type( v );
/* find attr type name */
if( TYPEget_name( t ) == NULL ) {
attr_type = GetAttrTypeName( t );
} else {
attr_type = TYPEget_name( t );
}
if( !VARis_derived( v ) && !VARget_inverse( v ) ) {
/* if the argument is not optional */
if( !VARget_optional( v ) ) {
fprintf( file, "\t\t# Mandatory argument\n" );
fprintf( file, "\t\tassert value != None, 'Argument \"value\" is mantatory and cannot be set to None'\n" );
fprintf( file, "\t\tif not check_type(value," );
if( TYPEis_aggregate( t ) ) {
process_aggregate( file, t );
fprintf( file, "):\n" );
} else if (attr_type && is_python_keyword(attr_type)) {
fprintf( file, "%s_):\n", attr_type );
} else {
fprintf( file, "%s):\n", attr_type );
}
} else {
fprintf( file, "\t\tif value != None: # OPTIONAL attribute\n\t" );
fprintf( file, "\t\tif not check_type(value," );
if( TYPEis_aggregate( t ) ) {
process_aggregate( file, t );
fprintf( file, "):\n\t" );
} else if (attr_type && is_python_keyword(attr_type)) {
fprintf( file, "%s_):\n\t", attr_type );
} else {
fprintf( file, "%s):\n\t", attr_type );
}
}
/* check wether attr_type is aggr or explicit */
if( TYPEis_aggregate( t ) ) {
fprintf( file, "\t\t\tself._%s = ", attrnm );
print_aggregate_type( file, t );
fprintf( file, "(value)\n" );
} else if (attr_type && is_python_keyword(attr_type)) {
fprintf( file, "\t\t\tself._%s = %s_(value)\n", attrnm, attr_type );
} else {
fprintf( file, "\t\t\tself._%s = %s(value)\n", attrnm, attr_type );
}
if( VARget_optional( v ) ) {
fprintf( file, "\t\t\telse:\n" );
fprintf( file, "\t\t\t\tself._%s = value\n", attrnm );
}
fprintf( file, "\t\telse:\n\t" );
fprintf( file, "\t\tself._%s = value\n", attrnm );
}
/* if the attribute is derived, prevent fset to attribute to be set */
/* TODO: this can be done by NOT writing the setter method */
else if( VARis_derived( v ) ) {
fprintf( file, "\t# DERIVED argument\n" );
fprintf( file, "\t\traise AssertionError('Argument %s is DERIVED. It is computed and can not be set to any value')\n", attrnm );
} else if( VARget_inverse( v ) ) {
fprintf( file, "\t# INVERSE argument\n" );
fprintf( file, "\t\traise AssertionError('Argument %s is INVERSE. It is computed and can not be set to any value')\n", attrnm );
}
LISTod
}
/* before exiting, process where rules */
WHEREPrint( entity->where, 0, file );
if ( rename_python_property ) {
fprintf( file, "\tproperty = __property\n" );
}
}
int
get_local_attribute_number( Entity entity ) {
int i = 0;
Linked_List local = ENTITYget_attributes( entity );
LISTdo( local, a, Variable )
/* go to the child's first explicit attribute */
if( ( ! VARget_inverse( a ) ) && ( ! VARis_derived( a ) ) ) {
++i;
}
LISTod;
return i;
}
int
get_attribute_number( Entity entity ) {
int i = 0;
int found = 0;
Linked_List local, complete;
complete = ENTITYget_all_attributes( entity );
local = ENTITYget_attributes( entity );
LISTdo( local, a, Variable )
/* go to the child's first explicit attribute */
if( ( ! VARget_inverse( a ) ) && ( ! VARis_derived( a ) ) ) {
LISTdo( complete, p, Variable )
/* cycle through all the explicit attributes until the
child's attribute is found */
if( !found && ( ! VARget_inverse( p ) ) && ( ! VARis_derived( p ) ) ) {
if( p != a ) {
++i;
} else {
found = 1;
}
}
LISTod;
if( found ) {
return i;
} else printf( "Internal error: %s:%d\n"
"Attribute %s not found. \n"
/* In this case, a is a Variable - so macro VARget_name (a) expands *
* to an Expression. The first element of an Expression is a Symbol. *
* The first element of a Symbol is char * name. */
, __FILE__, __LINE__, VARget_name( a )->symbol.name );
}
LISTod;
return -1;
}
void
LIBstructor_print( Entity entity, FILE * file, Schema schema ) {
}
/********************/
/* print the constructor that accepts a SCLP23(Application_instance) as an argument used
when building multiply inherited entities.
*/
void
LIBstructor_print_w_args( Entity entity, FILE * file, Schema schema ) {
}
/******************************************************************
** Procedure: ENTITYlib_print
** Parameters: Entity *entity -- entity being processed
** FILE* file -- file being written to
** Returns:
** Description: drives the printing of the code for the class library
** additional member functions can be generated by writing a routine
** to generate the code and calling that routine from this procedure
** Side Effects: generates code segment for c++ library file
** Status: ok 1/15/91
******************************************************************/
void
ENTITYlib_print( Entity entity, FILE * file, Schema schema ) {
LIBdescribe_entity( entity, file, schema );
}
/*FIXME should return bool */
/* return 1 if types are predefined by us */
int
TYPEis_builtin( const Type t ) {
switch( TYPEget_body( t )->type ) { /* dunno if correct*/
case integer_:
case real_:
case string_:
case binary_:
case boolean_:
case number_:
case logical_:
return 1;
break;
default:
break;
}
return 0;
}