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# include "gd_function.h"
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# include "gd_functions.h"
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# include "gd_script.h"
# include "os/os.h"
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Variant * GDFunction : : _get_variant ( int p_address , GDInstance * p_instance , GDScript * p_script , Variant & self , Variant * p_stack , String & r_error ) const {
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int address = p_address & ADDR_MASK ;
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//sequential table (jump table generated by compiler)
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switch ( ( p_address & ADDR_TYPE_MASK ) > > ADDR_BITS ) {
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case ADDR_TYPE_SELF : {
if ( ! p_instance ) {
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r_error = " Cannot access self without instance. " ;
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return NULL ;
}
return & self ;
} break ;
case ADDR_TYPE_CLASS : {
return & p_script - > _static_ref ;
} break ;
case ADDR_TYPE_MEMBER : {
//member indexing is O(1)
if ( ! p_instance ) {
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r_error = " Cannot access member without instance. " ;
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return NULL ;
}
return & p_instance - > members [ address ] ;
} break ;
case ADDR_TYPE_CLASS_CONSTANT : {
//todo change to index!
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GDScript * o = p_script ;
ERR_FAIL_INDEX_V ( address , _global_names_count , NULL ) ;
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const StringName * sn = & _global_names_ptr [ address ] ;
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while ( o ) {
GDScript * s = o ;
while ( s ) {
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Map < StringName , Variant > : : Element * E = s - > constants . find ( * sn ) ;
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if ( E ) {
return & E - > get ( ) ;
}
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s = s - > _base ;
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}
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o = o - > _owner ;
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}
ERR_EXPLAIN ( " GDCompiler bug.. " ) ;
ERR_FAIL_V ( NULL ) ;
} break ;
case ADDR_TYPE_LOCAL_CONSTANT : {
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ERR_FAIL_INDEX_V ( address , _constant_count , NULL ) ;
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return & _constants_ptr [ address ] ;
} break ;
case ADDR_TYPE_STACK :
case ADDR_TYPE_STACK_VARIABLE : {
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ERR_FAIL_INDEX_V ( address , _stack_size , NULL ) ;
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return & p_stack [ address ] ;
} break ;
case ADDR_TYPE_GLOBAL : {
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ERR_FAIL_INDEX_V ( address , GDScriptLanguage : : get_singleton ( ) - > get_global_array_size ( ) , NULL ) ;
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return & GDScriptLanguage : : get_singleton ( ) - > get_global_array ( ) [ address ] ;
} break ;
case ADDR_TYPE_NIL : {
return & nil ;
} break ;
}
ERR_EXPLAIN ( " Bad Code! (Addressing Mode) " ) ;
ERR_FAIL_V ( NULL ) ;
return NULL ;
}
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String GDFunction : : _get_call_error ( const Variant : : CallError & p_err , const String & p_where , const Variant * * argptrs ) const {
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String err_text ;
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if ( p_err . error = = Variant : : CallError : : CALL_ERROR_INVALID_ARGUMENT ) {
int errorarg = p_err . argument ;
err_text = " Invalid type in " + p_where + " . Cannot convert argument " + itos ( errorarg + 1 ) + " from " + Variant : : get_type_name ( argptrs [ errorarg ] - > get_type ( ) ) + " to " + Variant : : get_type_name ( p_err . expected ) + " . " ;
} else if ( p_err . error = = Variant : : CallError : : CALL_ERROR_TOO_MANY_ARGUMENTS ) {
err_text = " Invalid call to " + p_where + " . Expected " + itos ( p_err . argument ) + " arguments. " ;
} else if ( p_err . error = = Variant : : CallError : : CALL_ERROR_TOO_FEW_ARGUMENTS ) {
err_text = " Invalid call to " + p_where + " . Expected " + itos ( p_err . argument ) + " arguments. " ;
} else if ( p_err . error = = Variant : : CallError : : CALL_ERROR_INVALID_METHOD ) {
err_text = " Invalid call. Nonexistent " + p_where + " . " ;
} else if ( p_err . error = = Variant : : CallError : : CALL_ERROR_INSTANCE_IS_NULL ) {
err_text = " Attempt to call " + p_where + " on a null instance. " ;
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} else {
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err_text = " Bug, call error: # " + itos ( p_err . error ) ;
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}
return err_text ;
}
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static String _get_var_type ( const Variant * p_type ) {
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String basestr ;
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if ( p_type - > get_type ( ) = = Variant : : OBJECT ) {
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Object * bobj = * p_type ;
if ( ! bobj ) {
basestr = " null instance " ;
} else {
# ifdef DEBUG_ENABLED
if ( ObjectDB : : instance_validate ( bobj ) ) {
if ( bobj - > get_script_instance ( ) )
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basestr = bobj - > get_type ( ) + " ( " + bobj - > get_script_instance ( ) - > get_script ( ) - > get_path ( ) . get_file ( ) + " ) " ;
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else
basestr = bobj - > get_type ( ) ;
} else {
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basestr = " previously freed instance " ;
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}
# else
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basestr = " Object " ;
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# endif
}
} else {
basestr = Variant : : get_type_name ( p_type - > get_type ( ) ) ;
}
return basestr ;
}
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Variant GDFunction : : call ( GDInstance * p_instance , const Variant * * p_args , int p_argcount , Variant : : CallError & r_err , CallState * p_state ) {
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if ( ! _code_ptr ) {
return Variant ( ) ;
}
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r_err . error = Variant : : CallError : : CALL_OK ;
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Variant self ;
Variant retvalue ;
Variant * stack = NULL ;
Variant * * call_args ;
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int defarg = 0 ;
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# ifdef DEBUG_ENABLED
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//GDScriptLanguage::get_singleton()->calls++;
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# endif
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uint32_t alloca_size = 0 ;
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GDScript * _class ;
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int ip = 0 ;
int line = _initial_line ;
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if ( p_state ) {
//use existing (supplied) state (yielded)
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stack = ( Variant * ) p_state - > stack . ptr ( ) ;
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call_args = ( Variant * * ) & p_state - > stack . ptr ( ) [ sizeof ( Variant ) * p_state - > stack_size ] ; //ptr() to avoid bounds check
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line = p_state - > line ;
ip = p_state - > ip ;
alloca_size = p_state - > stack . size ( ) ;
_class = p_state - > _class ;
p_instance = p_state - > instance ;
defarg = p_state - > defarg ;
self = p_state - > self ;
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//stack[p_state->result_pos]=p_state->result; //assign stack with result
} else {
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if ( p_argcount ! = _argument_count ) {
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if ( p_argcount > _argument_count ) {
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r_err . error = Variant : : CallError : : CALL_ERROR_TOO_MANY_ARGUMENTS ;
r_err . argument = _argument_count ;
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return Variant ( ) ;
} else if ( p_argcount < _argument_count - _default_arg_count ) {
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r_err . error = Variant : : CallError : : CALL_ERROR_TOO_FEW_ARGUMENTS ;
r_err . argument = _argument_count - _default_arg_count ;
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return Variant ( ) ;
} else {
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defarg = _argument_count - p_argcount ;
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}
}
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alloca_size = sizeof ( Variant * ) * _call_size + sizeof ( Variant ) * _stack_size ;
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if ( alloca_size ) {
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uint8_t * aptr = ( uint8_t * ) alloca ( alloca_size ) ;
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if ( _stack_size ) {
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stack = ( Variant * ) aptr ;
for ( int i = 0 ; i < p_argcount ; i + + )
memnew_placement ( & stack [ i ] , Variant ( * p_args [ i ] ) ) ;
for ( int i = p_argcount ; i < _stack_size ; i + + )
memnew_placement ( & stack [ i ] , Variant ) ;
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} else {
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stack = NULL ;
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}
if ( _call_size ) {
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call_args = ( Variant * * ) & aptr [ sizeof ( Variant ) * _stack_size ] ;
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} else {
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call_args = NULL ;
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}
} else {
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stack = NULL ;
call_args = NULL ;
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}
if ( p_instance ) {
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if ( p_instance - > base_ref & & static_cast < Reference * > ( p_instance - > owner ) - > is_referenced ( ) ) {
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self = REF ( static_cast < Reference * > ( p_instance - > owner ) ) ;
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} else {
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self = p_instance - > owner ;
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}
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_class = p_instance - > script . ptr ( ) ;
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} else {
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_class = _script ;
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}
}
String err_text ;
# ifdef DEBUG_ENABLED
if ( ScriptDebugger : : get_singleton ( ) )
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GDScriptLanguage : : get_singleton ( ) - > enter_function ( p_instance , this , stack , & ip , & line ) ;
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# define CHECK_SPACE(m_space) \
ERR_BREAK ( ( ip + m_space ) > _code_size )
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# define GET_VARIANT_PTR(m_v, m_code_ofs) \
Variant * m_v ; \
m_v = _get_variant ( _code_ptr [ ip + m_code_ofs ] , p_instance , _class , self , stack , err_text ) ; \
if ( ! m_v ) \
break ;
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# else
# define CHECK_SPACE(m_space)
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# define GET_VARIANT_PTR(m_v, m_code_ofs) \
Variant * m_v ; \
m_v = _get_variant ( _code_ptr [ ip + m_code_ofs ] , p_instance , _class , self , stack , err_text ) ;
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# endif
# ifdef DEBUG_ENABLED
uint64_t function_start_time ;
uint64_t function_call_time ;
if ( GDScriptLanguage : : get_singleton ( ) - > profiling ) {
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function_start_time = OS : : get_singleton ( ) - > get_ticks_usec ( ) ;
function_call_time = 0 ;
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profile . call_count + + ;
profile . frame_call_count + + ;
}
# endif
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bool exit_ok = false ;
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while ( ip < _code_size ) {
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int last_opcode = _code_ptr [ ip ] ;
switch ( _code_ptr [ ip ] ) {
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case OPCODE_OPERATOR : {
CHECK_SPACE ( 5 ) ;
bool valid ;
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Variant : : Operator op = ( Variant : : Operator ) _code_ptr [ ip + 1 ] ;
ERR_BREAK ( op > = Variant : : OP_MAX ) ;
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GET_VARIANT_PTR ( a , 2 ) ;
GET_VARIANT_PTR ( b , 3 ) ;
GET_VARIANT_PTR ( dst , 4 ) ;
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# ifdef DEBUG_ENABLED
Variant ret ;
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Variant : : evaluate ( op , * a , * b , ret , valid ) ;
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# else
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Variant : : evaluate ( op , * a , * b , * dst , valid ) ;
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# endif
if ( ! valid ) {
# ifdef DEBUG_ENABLED
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if ( ret . get_type ( ) = = Variant : : STRING ) {
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//return a string when invalid with the error
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err_text = ret ;
err_text + = " in operator ' " + Variant : : get_operator_name ( op ) + " '. " ;
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} else {
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err_text = " Invalid operands ' " + Variant : : get_type_name ( a - > get_type ( ) ) + " ' and ' " + Variant : : get_type_name ( b - > get_type ( ) ) + " ' in operator ' " + Variant : : get_operator_name ( op ) + " '. " ;
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}
# endif
break ;
}
# ifdef DEBUG_ENABLED
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* dst = ret ;
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# endif
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ip + = 5 ;
}
continue ;
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case OPCODE_EXTENDS_TEST : {
CHECK_SPACE ( 4 ) ;
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GET_VARIANT_PTR ( a , 1 ) ;
GET_VARIANT_PTR ( b , 2 ) ;
GET_VARIANT_PTR ( dst , 3 ) ;
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# ifdef DEBUG_ENABLED
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if ( a - > get_type ( ) ! = Variant : : OBJECT | | a - > operator Object * ( ) = = NULL ) {
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err_text = " Left operand of 'extends' is not an instance of anything. " ;
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break ;
}
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if ( b - > get_type ( ) ! = Variant : : OBJECT | | b - > operator Object * ( ) = = NULL ) {
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err_text = " Right operand of 'extends' is not a class. " ;
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break ;
}
# endif
Object * obj_A = * a ;
Object * obj_B = * b ;
GDScript * scr_B = obj_B - > cast_to < GDScript > ( ) ;
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bool extends_ok = false ;
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if ( scr_B ) {
//if B is a script, the only valid condition is that A has an instance which inherits from the script
//in other situation, this shoul return false.
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if ( obj_A - > get_script_instance ( ) & & obj_A - > get_script_instance ( ) - > get_language ( ) = = GDScriptLanguage : : get_singleton ( ) ) {
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GDScript * cmp = static_cast < GDScript * > ( obj_A - > get_script_instance ( ) - > get_script ( ) . ptr ( ) ) ;
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//bool found=false;
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while ( cmp ) {
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if ( cmp = = scr_B ) {
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//inherits from script, all ok
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extends_ok = true ;
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break ;
}
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cmp = cmp - > _base ;
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}
}
} else {
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GDNativeClass * nc = obj_B - > cast_to < GDNativeClass > ( ) ;
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if ( ! nc ) {
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err_text = " Right operand of 'extends' is not a class (type: ' " + obj_B - > get_type ( ) + " '). " ;
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break ;
}
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extends_ok = ObjectTypeDB : : is_type ( obj_A - > get_type_name ( ) , nc - > get_name ( ) ) ;
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}
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* dst = extends_ok ;
ip + = 4 ;
}
continue ;
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case OPCODE_SET : {
CHECK_SPACE ( 3 ) ;
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GET_VARIANT_PTR ( dst , 1 ) ;
GET_VARIANT_PTR ( index , 2 ) ;
GET_VARIANT_PTR ( value , 3 ) ;
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bool valid ;
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dst - > set ( * index , * value , & valid ) ;
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if ( ! valid ) {
String v = index - > operator String ( ) ;
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if ( v ! = " " ) {
v = " ' " + v + " ' " ;
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} else {
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v = " of type ' " + _get_var_type ( index ) + " ' " ;
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}
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err_text = " Invalid set index " + v + " (on base: ' " + _get_var_type ( dst ) + " '). " ;
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break ;
}
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ip + = 4 ;
}
continue ;
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case OPCODE_GET : {
CHECK_SPACE ( 3 ) ;
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GET_VARIANT_PTR ( src , 1 ) ;
GET_VARIANT_PTR ( index , 2 ) ;
GET_VARIANT_PTR ( dst , 3 ) ;
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bool valid ;
# ifdef DEBUG_ENABLED
//allow better error message in cases where src and dst are the same stack position
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Variant ret = src - > get ( * index , & valid ) ;
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# else
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* dst = src - > get ( * index , & valid ) ;
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# endif
if ( ! valid ) {
String v = index - > operator String ( ) ;
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if ( v ! = " " ) {
v = " ' " + v + " ' " ;
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} else {
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v = " of type ' " + _get_var_type ( index ) + " ' " ;
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}
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err_text = " Invalid get index " + v + " (on base: ' " + _get_var_type ( src ) + " '). " ;
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break ;
}
# ifdef DEBUG_ENABLED
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* dst = ret ;
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# endif
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ip + = 4 ;
}
continue ;
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case OPCODE_SET_NAMED : {
CHECK_SPACE ( 3 ) ;
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GET_VARIANT_PTR ( dst , 1 ) ;
GET_VARIANT_PTR ( value , 3 ) ;
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int indexname = _code_ptr [ ip + 2 ] ;
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ERR_BREAK ( indexname < 0 | | indexname > = _global_names_count ) ;
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const StringName * index = & _global_names_ptr [ indexname ] ;
bool valid ;
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dst - > set_named ( * index , * value , & valid ) ;
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if ( ! valid ) {
String err_type ;
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err_text = " Invalid set index ' " + String ( * index ) + " ' (on base: ' " + _get_var_type ( dst ) + " '). " ;
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break ;
}
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ip + = 4 ;
}
continue ;
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case OPCODE_GET_NAMED : {
CHECK_SPACE ( 3 ) ;
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GET_VARIANT_PTR ( src , 1 ) ;
GET_VARIANT_PTR ( dst , 3 ) ;
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int indexname = _code_ptr [ ip + 2 ] ;
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ERR_BREAK ( indexname < 0 | | indexname > = _global_names_count ) ;
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const StringName * index = & _global_names_ptr [ indexname ] ;
bool valid ;
# ifdef DEBUG_ENABLED
//allow better error message in cases where src and dst are the same stack position
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Variant ret = src - > get_named ( * index , & valid ) ;
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# else
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* dst = src - > get_named ( * index , & valid ) ;
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# endif
if ( ! valid ) {
if ( src - > has_method ( * index ) ) {
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err_text = " Invalid get index ' " + index - > operator String ( ) + " ' (on base: ' " + _get_var_type ( src ) + " '). Did you mean '. " + index - > operator String ( ) + " ()' ? " ;
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} else {
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err_text = " Invalid get index ' " + index - > operator String ( ) + " ' (on base: ' " + _get_var_type ( src ) + " '). " ;
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}
break ;
}
# ifdef DEBUG_ENABLED
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* dst = ret ;
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# endif
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ip + = 4 ;
}
continue ;
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case OPCODE_ASSIGN : {
CHECK_SPACE ( 3 ) ;
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GET_VARIANT_PTR ( dst , 1 ) ;
GET_VARIANT_PTR ( src , 2 ) ;
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* dst = * src ;
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ip + = 3 ;
}
continue ;
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case OPCODE_ASSIGN_TRUE : {
CHECK_SPACE ( 2 ) ;
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GET_VARIANT_PTR ( dst , 1 ) ;
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* dst = true ;
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ip + = 2 ;
}
continue ;
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case OPCODE_ASSIGN_FALSE : {
CHECK_SPACE ( 2 ) ;
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GET_VARIANT_PTR ( dst , 1 ) ;
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* dst = false ;
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ip + = 2 ;
}
continue ;
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case OPCODE_CONSTRUCT : {
CHECK_SPACE ( 2 ) ;
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Variant : : Type t = Variant : : Type ( _code_ptr [ ip + 1 ] ) ;
int argc = _code_ptr [ ip + 2 ] ;
CHECK_SPACE ( argc + 2 ) ;
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Variant * * argptrs = call_args ;
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for ( int i = 0 ; i < argc ; i + + ) {
GET_VARIANT_PTR ( v , 3 + i ) ;
argptrs [ i ] = v ;
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}
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GET_VARIANT_PTR ( dst , 3 + argc ) ;
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Variant : : CallError err ;
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* dst = Variant : : construct ( t , ( const Variant * * ) argptrs , argc , err ) ;
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if ( err . error ! = Variant : : CallError : : CALL_OK ) {
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err_text = _get_call_error ( err , " ' " + Variant : : get_type_name ( t ) + " ' constructor " , ( const Variant * * ) argptrs ) ;
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break ;
}
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ip + = 4 + argc ;
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//construct a basic type
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}
continue ;
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case OPCODE_CONSTRUCT_ARRAY : {
CHECK_SPACE ( 1 ) ;
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int argc = _code_ptr [ ip + 1 ] ;
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Array array ( true ) ; //arrays are always shared
array . resize ( argc ) ;
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CHECK_SPACE ( argc + 2 ) ;
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for ( int i = 0 ; i < argc ; i + + ) {
GET_VARIANT_PTR ( v , 2 + i ) ;
array [ i ] = * v ;
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}
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GET_VARIANT_PTR ( dst , 2 + argc ) ;
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* dst = array ;
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2017-03-19 00:36:26 +01:00
ip + = 3 + argc ;
}
continue ;
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case OPCODE_CONSTRUCT_DICTIONARY : {
CHECK_SPACE ( 1 ) ;
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int argc = _code_ptr [ ip + 1 ] ;
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Dictionary dict ( true ) ; //arrays are always shared
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CHECK_SPACE ( argc * 2 + 2 ) ;
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for ( int i = 0 ; i < argc ; i + + ) {
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GET_VARIANT_PTR ( k , 2 + i * 2 + 0 ) ;
GET_VARIANT_PTR ( v , 2 + i * 2 + 1 ) ;
dict [ * k ] = * v ;
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}
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GET_VARIANT_PTR ( dst , 2 + argc * 2 ) ;
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* dst = dict ;
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2017-03-19 00:36:26 +01:00
ip + = 3 + argc * 2 ;
}
continue ;
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case OPCODE_CALL_RETURN :
case OPCODE_CALL : {
CHECK_SPACE ( 4 ) ;
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bool call_ret = _code_ptr [ ip ] = = OPCODE_CALL_RETURN ;
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int argc = _code_ptr [ ip + 1 ] ;
GET_VARIANT_PTR ( base , 2 ) ;
int nameg = _code_ptr [ ip + 3 ] ;
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ERR_BREAK ( nameg < 0 | | nameg > = _global_names_count ) ;
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const StringName * methodname = & _global_names_ptr [ nameg ] ;
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ERR_BREAK ( argc < 0 ) ;
ip + = 4 ;
CHECK_SPACE ( argc + 1 ) ;
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Variant * * argptrs = call_args ;
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for ( int i = 0 ; i < argc ; i + + ) {
GET_VARIANT_PTR ( v , i ) ;
argptrs [ i ] = v ;
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}
# ifdef DEBUG_ENABLED
uint64_t call_time ;
if ( GDScriptLanguage : : get_singleton ( ) - > profiling ) {
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call_time = OS : : get_singleton ( ) - > get_ticks_usec ( ) ;
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}
# endif
Variant : : CallError err ;
if ( call_ret ) {
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GET_VARIANT_PTR ( ret , argc ) ;
base - > call_ptr ( * methodname , ( const Variant * * ) argptrs , argc , ret , err ) ;
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} else {
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base - > call_ptr ( * methodname , ( const Variant * * ) argptrs , argc , NULL , err ) ;
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}
# ifdef DEBUG_ENABLED
if ( GDScriptLanguage : : get_singleton ( ) - > profiling ) {
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function_call_time + = OS : : get_singleton ( ) - > get_ticks_usec ( ) - call_time ;
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}
# endif
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if ( err . error ! = Variant : : CallError : : CALL_OK ) {
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String methodstr = * methodname ;
String basestr = _get_var_type ( base ) ;
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if ( methodstr = = " call " ) {
if ( argc > = 1 ) {
methodstr = String ( * argptrs [ 0 ] ) + " (via call) " ;
if ( err . error = = Variant : : CallError : : CALL_ERROR_INVALID_ARGUMENT ) {
err . argument - = 1 ;
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}
}
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}
if ( methodstr = = " free " ) {
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if ( err . error = = Variant : : CallError : : CALL_ERROR_INVALID_METHOD ) {
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if ( base - > is_ref ( ) ) {
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err_text = " Attempted to free a reference. " ;
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break ;
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} else if ( base - > get_type ( ) = = Variant : : OBJECT ) {
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err_text = " Attempted to free a locked object (calling or emitting). " ;
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break ;
}
}
}
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err_text = _get_call_error ( err , " function ' " + methodstr + " ' in base ' " + basestr + " ' " , ( const Variant * * ) argptrs ) ;
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break ;
}
//_call_func(NULL,base,*methodname,ip,argc,p_instance,stack);
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ip + = argc + 1 ;
}
continue ;
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case OPCODE_CALL_BUILT_IN : {
CHECK_SPACE ( 4 ) ;
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GDFunctions : : Function func = GDFunctions : : Function ( _code_ptr [ ip + 1 ] ) ;
int argc = _code_ptr [ ip + 2 ] ;
ERR_BREAK ( argc < 0 ) ;
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2017-03-19 00:36:26 +01:00
ip + = 3 ;
CHECK_SPACE ( argc + 1 ) ;
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Variant * * argptrs = call_args ;
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for ( int i = 0 ; i < argc ; i + + ) {
GET_VARIANT_PTR ( v , i ) ;
argptrs [ i ] = v ;
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}
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GET_VARIANT_PTR ( dst , argc ) ;
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Variant : : CallError err ;
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GDFunctions : : call ( func , ( const Variant * * ) argptrs , argc , * dst , err ) ;
2016-06-01 03:28:27 +02:00
2017-03-19 00:36:26 +01:00
if ( err . error ! = Variant : : CallError : : CALL_OK ) {
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String methodstr = GDFunctions : : get_func_name ( func ) ;
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if ( dst - > get_type ( ) = = Variant : : STRING ) {
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//call provided error string
2017-03-19 00:36:26 +01:00
err_text = " Error calling built-in function ' " + methodstr + " ': " + String ( * dst ) ;
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} else {
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err_text = _get_call_error ( err , " built-in function ' " + methodstr + " ' " , ( const Variant * * ) argptrs ) ;
2016-06-12 00:43:38 +02:00
}
2016-06-01 03:28:27 +02:00
break ;
}
2017-03-19 00:36:26 +01:00
ip + = argc + 1 ;
}
continue ;
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case OPCODE_CALL_SELF : {
} break ;
case OPCODE_CALL_SELF_BASE : {
CHECK_SPACE ( 2 ) ;
2017-03-19 00:36:26 +01:00
int self_fun = _code_ptr [ ip + 1 ] ;
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# ifdef DEBUG_ENABLED
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if ( self_fun < 0 | | self_fun > = _global_names_count ) {
2016-06-01 03:28:27 +02:00
2017-03-19 00:36:26 +01:00
err_text = " compiler bug, function name not found " ;
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break ;
}
# endif
const StringName * methodname = & _global_names_ptr [ self_fun ] ;
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int argc = _code_ptr [ ip + 2 ] ;
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2017-03-19 00:36:26 +01:00
CHECK_SPACE ( 2 + argc + 1 ) ;
2016-06-01 03:28:27 +02:00
Variant * * argptrs = call_args ;
2017-03-19 00:36:26 +01:00
for ( int i = 0 ; i < argc ; i + + ) {
GET_VARIANT_PTR ( v , i + 3 ) ;
argptrs [ i ] = v ;
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}
2017-03-19 00:36:26 +01:00
GET_VARIANT_PTR ( dst , argc + 3 ) ;
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const GDScript * gds = _script ;
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const Map < StringName , GDFunction * > : : Element * E = NULL ;
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while ( gds - > base . ptr ( ) ) {
2017-03-19 00:36:26 +01:00
gds = gds - > base . ptr ( ) ;
E = gds - > member_functions . find ( * methodname ) ;
2016-06-01 03:28:27 +02:00
if ( E )
break ;
}
Variant : : CallError err ;
if ( E ) {
2017-03-19 00:36:26 +01:00
* dst = E - > get ( ) - > call ( p_instance , ( const Variant * * ) argptrs , argc , err ) ;
2016-06-01 03:28:27 +02:00
} else if ( gds - > native . ptr ( ) ) {
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if ( * methodname ! = GDScriptLanguage : : get_singleton ( ) - > strings . _init ) {
2016-06-01 03:28:27 +02:00
2017-03-19 00:36:26 +01:00
MethodBind * mb = ObjectTypeDB : : get_method ( gds - > native - > get_name ( ) , * methodname ) ;
2016-06-01 03:28:27 +02:00
if ( ! mb ) {
2017-03-19 00:36:26 +01:00
err . error = Variant : : CallError : : CALL_ERROR_INVALID_METHOD ;
2016-06-01 03:28:27 +02:00
} else {
2017-03-19 00:36:26 +01:00
* dst = mb - > call ( p_instance - > owner , ( const Variant * * ) argptrs , argc , err ) ;
2016-06-01 03:28:27 +02:00
}
} else {
2017-03-19 00:36:26 +01:00
err . error = Variant : : CallError : : CALL_OK ;
2016-06-01 03:28:27 +02:00
}
} else {
2017-03-19 00:36:26 +01:00
if ( * methodname ! = GDScriptLanguage : : get_singleton ( ) - > strings . _init ) {
err . error = Variant : : CallError : : CALL_ERROR_INVALID_METHOD ;
2016-06-01 03:28:27 +02:00
} else {
2017-03-19 00:36:26 +01:00
err . error = Variant : : CallError : : CALL_OK ;
2016-06-01 03:28:27 +02:00
}
}
2017-03-19 00:36:26 +01:00
if ( err . error ! = Variant : : CallError : : CALL_OK ) {
2016-06-01 03:28:27 +02:00
String methodstr = * methodname ;
2017-03-19 00:36:26 +01:00
err_text = _get_call_error ( err , " function ' " + methodstr + " ' " , ( const Variant * * ) argptrs ) ;
2016-06-01 03:28:27 +02:00
break ;
}
2017-03-19 00:36:26 +01:00
ip + = 4 + argc ;
}
continue ;
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case OPCODE_YIELD :
case OPCODE_YIELD_SIGNAL : {
2017-03-19 00:36:26 +01:00
int ipofs = 1 ;
if ( _code_ptr [ ip ] = = OPCODE_YIELD_SIGNAL ) {
2016-06-01 03:28:27 +02:00
CHECK_SPACE ( 4 ) ;
2017-03-19 00:36:26 +01:00
ipofs + = 2 ;
2016-06-01 03:28:27 +02:00
} else {
CHECK_SPACE ( 2 ) ;
}
2017-03-19 00:36:26 +01:00
Ref < GDFunctionState > gdfs = memnew ( GDFunctionState ) ;
gdfs - > function = this ;
2016-06-01 03:28:27 +02:00
gdfs - > state . stack . resize ( alloca_size ) ;
//copy variant stack
2017-03-19 00:36:26 +01:00
for ( int i = 0 ; i < _stack_size ; i + + ) {
memnew_placement ( & gdfs - > state . stack [ sizeof ( Variant ) * i ] , Variant ( stack [ i ] ) ) ;
2016-06-01 03:28:27 +02:00
}
2017-03-19 00:36:26 +01:00
gdfs - > state . stack_size = _stack_size ;
gdfs - > state . self = self ;
gdfs - > state . alloca_size = alloca_size ;
gdfs - > state . _class = _class ;
gdfs - > state . ip = ip + ipofs ;
gdfs - > state . line = line ;
gdfs - > state . instance_id = ( p_instance & & p_instance - > get_owner ( ) ) ? p_instance - > get_owner ( ) - > get_instance_ID ( ) : 0 ;
gdfs - > state . script_id = _class - > get_instance_ID ( ) ;
2016-06-01 03:28:27 +02:00
//gdfs->state.result_pos=ip+ipofs-1;
2017-03-19 00:36:26 +01:00
gdfs - > state . defarg = defarg ;
gdfs - > state . instance = p_instance ;
gdfs - > function = this ;
2016-06-01 03:28:27 +02:00
2017-03-19 00:36:26 +01:00
retvalue = gdfs ;
2016-06-01 03:28:27 +02:00
2017-03-19 00:36:26 +01:00
if ( _code_ptr [ ip ] = = OPCODE_YIELD_SIGNAL ) {
GET_VARIANT_PTR ( argobj , 1 ) ;
GET_VARIANT_PTR ( argname , 2 ) ;
2016-06-01 03:28:27 +02:00
//do the oneshot connect
2017-03-19 00:36:26 +01:00
if ( argobj - > get_type ( ) ! = Variant : : OBJECT ) {
err_text = " First argument of yield() not of type object. " ;
2016-06-01 03:28:27 +02:00
break ;
}
2017-03-19 00:36:26 +01:00
if ( argname - > get_type ( ) ! = Variant : : STRING ) {
err_text = " Second argument of yield() not a string (for signal name). " ;
2016-06-01 03:28:27 +02:00
break ;
}
2017-03-19 00:36:26 +01:00
Object * obj = argobj - > operator Object * ( ) ;
2016-06-01 03:28:27 +02:00
String signal = argname - > operator String ( ) ;
# ifdef DEBUG_ENABLED
if ( ! obj ) {
2017-03-19 00:36:26 +01:00
err_text = " First argument of yield() is null. " ;
2016-06-01 03:28:27 +02:00
break ;
}
if ( ScriptDebugger : : get_singleton ( ) ) {
if ( ! ObjectDB : : instance_validate ( obj ) ) {
2017-03-19 00:36:26 +01:00
err_text = " First argument of yield() is a previously freed instance. " ;
2016-06-01 03:28:27 +02:00
break ;
}
}
2017-03-19 00:36:26 +01:00
if ( signal . length ( ) = = 0 ) {
2016-06-01 03:28:27 +02:00
2017-03-19 00:36:26 +01:00
err_text = " Second argument of yield() is an empty string (for signal name). " ;
2016-06-01 03:28:27 +02:00
break ;
}
# endif
2017-03-19 00:36:26 +01:00
Error err = obj - > connect ( signal , gdfs . ptr ( ) , " _signal_callback " , varray ( gdfs ) , Object : : CONNECT_ONESHOT ) ;
if ( err ! = OK ) {
err_text = " Error connecting to signal: " + signal + " during yield(). " ;
2016-06-01 03:28:27 +02:00
break ;
}
}
2017-03-19 00:36:26 +01:00
exit_ok = true ;
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} break ;
case OPCODE_YIELD_RESUME : {
CHECK_SPACE ( 2 ) ;
if ( ! p_state ) {
2017-03-19 00:36:26 +01:00
err_text = ( " Invalid Resume (bug?) " ) ;
2016-06-01 03:28:27 +02:00
break ;
}
2017-03-19 00:36:26 +01:00
GET_VARIANT_PTR ( result , 1 ) ;
* result = p_state - > result ;
ip + = 2 ;
}
continue ;
2016-06-01 03:28:27 +02:00
case OPCODE_JUMP : {
CHECK_SPACE ( 2 ) ;
2017-03-19 00:36:26 +01:00
int to = _code_ptr [ ip + 1 ] ;
2016-06-01 03:28:27 +02:00
2017-03-19 00:36:26 +01:00
ERR_BREAK ( to < 0 | | to > _code_size ) ;
ip = to ;
}
continue ;
2016-06-01 03:28:27 +02:00
case OPCODE_JUMP_IF : {
CHECK_SPACE ( 3 ) ;
2017-03-19 00:36:26 +01:00
GET_VARIANT_PTR ( test , 1 ) ;
2016-06-01 03:28:27 +02:00
bool valid ;
bool result = test - > booleanize ( valid ) ;
# ifdef DEBUG_ENABLED
if ( ! valid ) {
2017-03-19 00:36:26 +01:00
err_text = " cannot evaluate conditional expression of type: " + Variant : : get_type_name ( test - > get_type ( ) ) ;
2016-06-01 03:28:27 +02:00
break ;
}
# endif
if ( result ) {
2017-03-19 00:36:26 +01:00
int to = _code_ptr [ ip + 2 ] ;
ERR_BREAK ( to < 0 | | to > _code_size ) ;
ip = to ;
2016-06-01 03:28:27 +02:00
continue ;
}
2017-03-19 00:36:26 +01:00
ip + = 3 ;
}
continue ;
2016-06-01 03:28:27 +02:00
case OPCODE_JUMP_IF_NOT : {
CHECK_SPACE ( 3 ) ;
2017-03-19 00:36:26 +01:00
GET_VARIANT_PTR ( test , 1 ) ;
2016-06-01 03:28:27 +02:00
bool valid ;
bool result = test - > booleanize ( valid ) ;
# ifdef DEBUG_ENABLED
if ( ! valid ) {
2017-03-19 00:36:26 +01:00
err_text = " cannot evaluate conditional expression of type: " + Variant : : get_type_name ( test - > get_type ( ) ) ;
2016-06-01 03:28:27 +02:00
break ;
}
# endif
if ( ! result ) {
2017-03-19 00:36:26 +01:00
int to = _code_ptr [ ip + 2 ] ;
ERR_BREAK ( to < 0 | | to > _code_size ) ;
ip = to ;
2016-06-01 03:28:27 +02:00
continue ;
}
2017-03-19 00:36:26 +01:00
ip + = 3 ;
}
continue ;
2016-06-01 03:28:27 +02:00
case OPCODE_JUMP_TO_DEF_ARGUMENT : {
CHECK_SPACE ( 2 ) ;
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ip = _default_arg_ptr [ defarg ] ;
}
continue ;
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case OPCODE_RETURN : {
CHECK_SPACE ( 2 ) ;
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GET_VARIANT_PTR ( r , 1 ) ;
retvalue = * r ;
exit_ok = true ;
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} break ;
case OPCODE_ITERATE_BEGIN : {
CHECK_SPACE ( 8 ) ; //space for this an regular iterate
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GET_VARIANT_PTR ( counter , 1 ) ;
GET_VARIANT_PTR ( container , 2 ) ;
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bool valid ;
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if ( ! container - > iter_init ( * counter , valid ) ) {
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if ( ! valid ) {
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err_text = " Unable to iterate on object of type " + Variant : : get_type_name ( container - > get_type ( ) ) + " '. " ;
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break ;
}
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int jumpto = _code_ptr [ ip + 3 ] ;
ERR_BREAK ( jumpto < 0 | | jumpto > _code_size ) ;
ip = jumpto ;
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continue ;
}
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GET_VARIANT_PTR ( iterator , 4 ) ;
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* iterator = container - > iter_get ( * counter , valid ) ;
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if ( ! valid ) {
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err_text = " Unable to obtain iterator object of type " + Variant : : get_type_name ( container - > get_type ( ) ) + " '. " ;
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break ;
}
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ip + = 5 ; //skip regular iterate which is always next
}
continue ;
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case OPCODE_ITERATE : {
CHECK_SPACE ( 4 ) ;
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GET_VARIANT_PTR ( counter , 1 ) ;
GET_VARIANT_PTR ( container , 2 ) ;
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bool valid ;
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if ( ! container - > iter_next ( * counter , valid ) ) {
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if ( ! valid ) {
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err_text = " Unable to iterate on object of type " + Variant : : get_type_name ( container - > get_type ( ) ) + " ' (type changed since first iteration?). " ;
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break ;
}
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int jumpto = _code_ptr [ ip + 3 ] ;
ERR_BREAK ( jumpto < 0 | | jumpto > _code_size ) ;
ip = jumpto ;
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continue ;
}
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GET_VARIANT_PTR ( iterator , 4 ) ;
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* iterator = container - > iter_get ( * counter , valid ) ;
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if ( ! valid ) {
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err_text = " Unable to obtain iterator object of type " + Variant : : get_type_name ( container - > get_type ( ) ) + " ' (but was obtained on first iteration?). " ;
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break ;
}
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ip + = 5 ; //loop again
}
continue ;
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case OPCODE_ASSERT : {
CHECK_SPACE ( 2 ) ;
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GET_VARIANT_PTR ( test , 1 ) ;
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# ifdef DEBUG_ENABLED
bool valid ;
bool result = test - > booleanize ( valid ) ;
if ( ! valid ) {
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err_text = " cannot evaluate conditional expression of type: " + Variant : : get_type_name ( test - > get_type ( ) ) ;
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break ;
}
if ( ! result ) {
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err_text = " Assertion failed. " ;
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break ;
}
# endif
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ip + = 2 ;
}
continue ;
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case OPCODE_BREAKPOINT : {
# ifdef DEBUG_ENABLED
if ( ScriptDebugger : : get_singleton ( ) ) {
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GDScriptLanguage : : get_singleton ( ) - > debug_break ( " Breakpoint Statement " , true ) ;
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}
# endif
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ip + = 1 ;
}
continue ;
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case OPCODE_LINE : {
CHECK_SPACE ( 2 ) ;
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line = _code_ptr [ ip + 1 ] ;
ip + = 2 ;
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if ( ScriptDebugger : : get_singleton ( ) ) {
// line
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bool do_break = false ;
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if ( ScriptDebugger : : get_singleton ( ) - > get_lines_left ( ) > 0 ) {
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if ( ScriptDebugger : : get_singleton ( ) - > get_depth ( ) < = 0 )
ScriptDebugger : : get_singleton ( ) - > set_lines_left ( ScriptDebugger : : get_singleton ( ) - > get_lines_left ( ) - 1 ) ;
if ( ScriptDebugger : : get_singleton ( ) - > get_lines_left ( ) < = 0 )
do_break = true ;
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}
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if ( ScriptDebugger : : get_singleton ( ) - > is_breakpoint ( line , source ) )
do_break = true ;
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if ( do_break ) {
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GDScriptLanguage : : get_singleton ( ) - > debug_break ( " Breakpoint " , true ) ;
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}
ScriptDebugger : : get_singleton ( ) - > line_poll ( ) ;
}
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}
continue ;
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case OPCODE_END : {
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exit_ok = true ;
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break ;
} break ;
default : {
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err_text = " Illegal opcode " + itos ( _code_ptr [ ip ] ) + " at address " + itos ( ip ) ;
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} break ;
}
if ( exit_ok )
break ;
//error
// function, file, line, error, explanation
String err_file ;
if ( p_instance )
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err_file = p_instance - > script - > path ;
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else if ( _class )
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err_file = _class - > path ;
if ( err_file = = " " )
err_file = " <built-in> " ;
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String err_func = name ;
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if ( p_instance & & p_instance - > script - > name ! = " " )
err_func = p_instance - > script - > name + " . " + err_func ;
int err_line = line ;
if ( err_text = = " " ) {
err_text = " Internal Script Error! - opcode # " + itos ( last_opcode ) + " (report please). " ;
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}
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if ( ! GDScriptLanguage : : get_singleton ( ) - > debug_break ( err_text , false ) ) {
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// debugger break did not happen
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_err_print_error ( err_func . utf8 ( ) . get_data ( ) , err_file . utf8 ( ) . get_data ( ) , err_line , err_text . utf8 ( ) . get_data ( ) , ERR_HANDLER_SCRIPT ) ;
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}
break ;
}
# ifdef DEBUG_ENABLED
if ( GDScriptLanguage : : get_singleton ( ) - > profiling ) {
uint64_t time_taken = OS : : get_singleton ( ) - > get_ticks_usec ( ) - function_start_time ;
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profile . total_time + = time_taken ;
profile . self_time + = time_taken - function_call_time ;
profile . frame_total_time + = time_taken ;
profile . frame_self_time + = time_taken - function_call_time ;
GDScriptLanguage : : get_singleton ( ) - > script_frame_time + = time_taken - function_call_time ;
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}
# endif
if ( ScriptDebugger : : get_singleton ( ) )
GDScriptLanguage : : get_singleton ( ) - > exit_function ( ) ;
if ( _stack_size ) {
//free stack
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for ( int i = 0 ; i < _stack_size ; i + + )
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stack [ i ] . ~ Variant ( ) ;
}
return retvalue ;
}
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const int * GDFunction : : get_code ( ) const {
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return _code_ptr ;
}
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int GDFunction : : get_code_size ( ) const {
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return _code_size ;
}
Variant GDFunction : : get_constant ( int p_idx ) const {
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ERR_FAIL_INDEX_V ( p_idx , constants . size ( ) , " <errconst> " ) ;
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return constants [ p_idx ] ;
}
StringName GDFunction : : get_global_name ( int p_idx ) const {
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ERR_FAIL_INDEX_V ( p_idx , global_names . size ( ) , " <errgname> " ) ;
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return global_names [ p_idx ] ;
}
int GDFunction : : get_default_argument_count ( ) const {
return default_arguments . size ( ) ;
}
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int GDFunction : : get_default_argument_addr ( int p_arg ) const {
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ERR_FAIL_INDEX_V ( p_arg , default_arguments . size ( ) , - 1 ) ;
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return default_arguments [ p_arg ] ;
}
StringName GDFunction : : get_name ( ) const {
return name ;
}
int GDFunction : : get_max_stack_size ( ) const {
return _stack_size ;
}
struct _GDFKC {
int order ;
List < int > pos ;
} ;
struct _GDFKCS {
int order ;
StringName id ;
int pos ;
bool operator < ( const _GDFKCS & p_r ) const {
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return order < p_r . order ;
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}
} ;
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void GDFunction : : debug_get_stack_member_state ( int p_line , List < Pair < StringName , int > > * r_stackvars ) const {
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int oc = 0 ;
Map < StringName , _GDFKC > sdmap ;
for ( const List < StackDebug > : : Element * E = stack_debug . front ( ) ; E ; E = E - > next ( ) ) {
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const StackDebug & sd = E - > get ( ) ;
if ( sd . line > p_line )
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break ;
if ( sd . added ) {
if ( ! sdmap . has ( sd . identifier ) ) {
_GDFKC d ;
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d . order = oc + + ;
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d . pos . push_back ( sd . pos ) ;
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sdmap [ sd . identifier ] = d ;
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} else {
sdmap [ sd . identifier ] . pos . push_back ( sd . pos ) ;
}
} else {
ERR_CONTINUE ( ! sdmap . has ( sd . identifier ) ) ;
sdmap [ sd . identifier ] . pos . pop_back ( ) ;
if ( sdmap [ sd . identifier ] . pos . empty ( ) )
sdmap . erase ( sd . identifier ) ;
}
}
List < _GDFKCS > stackpositions ;
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for ( Map < StringName , _GDFKC > : : Element * E = sdmap . front ( ) ; E ; E = E - > next ( ) ) {
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_GDFKCS spp ;
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spp . id = E - > key ( ) ;
spp . order = E - > get ( ) . order ;
spp . pos = E - > get ( ) . pos . back ( ) - > get ( ) ;
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stackpositions . push_back ( spp ) ;
}
stackpositions . sort ( ) ;
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for ( List < _GDFKCS > : : Element * E = stackpositions . front ( ) ; E ; E = E - > next ( ) ) {
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Pair < StringName , int > p ;
p . first = E - > get ( ) . id ;
p . second = E - > get ( ) . pos ;
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r_stackvars - > push_back ( p ) ;
}
}
#if 0
void GDFunction : : clear ( ) {
name = StringName ( ) ;
constants . clear ( ) ;
_stack_size = 0 ;
code . clear ( ) ;
_constants_ptr = NULL ;
_constant_count = 0 ;
_global_names_ptr = NULL ;
_global_names_count = 0 ;
_code_ptr = NULL ;
_code_size = 0 ;
}
# endif
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GDFunction : : GDFunction ( )
: function_list ( this ) {
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_stack_size = 0 ;
_call_size = 0 ;
name = " <anonymous> " ;
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# ifdef DEBUG_ENABLED
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_func_cname = NULL ;
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if ( GDScriptLanguage : : get_singleton ( ) - > lock ) {
GDScriptLanguage : : get_singleton ( ) - > lock - > lock ( ) ;
}
GDScriptLanguage : : get_singleton ( ) - > function_list . add ( & function_list ) ;
if ( GDScriptLanguage : : get_singleton ( ) - > lock ) {
GDScriptLanguage : : get_singleton ( ) - > lock - > unlock ( ) ;
}
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profile . call_count = 0 ;
profile . self_time = 0 ;
profile . total_time = 0 ;
profile . frame_call_count = 0 ;
profile . frame_self_time = 0 ;
profile . frame_total_time = 0 ;
profile . last_frame_call_count = 0 ;
profile . last_frame_self_time = 0 ;
profile . last_frame_total_time = 0 ;
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# endif
}
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GDFunction : : ~ GDFunction ( ) {
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# ifdef DEBUG_ENABLED
if ( GDScriptLanguage : : get_singleton ( ) - > lock ) {
GDScriptLanguage : : get_singleton ( ) - > lock - > lock ( ) ;
}
GDScriptLanguage : : get_singleton ( ) - > function_list . remove ( & function_list ) ;
if ( GDScriptLanguage : : get_singleton ( ) - > lock ) {
GDScriptLanguage : : get_singleton ( ) - > lock - > unlock ( ) ;
}
# endif
}
/////////////////////
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Variant GDFunctionState : : _signal_callback ( const Variant * * p_args , int p_argcount , Variant : : CallError & r_error ) {
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# ifdef DEBUG_ENABLED
if ( state . instance_id & & ! ObjectDB : : get_instance ( state . instance_id ) ) {
ERR_EXPLAIN ( " Resumed after yield, but class instance is gone " ) ;
ERR_FAIL_V ( Variant ( ) ) ;
}
if ( state . script_id & & ! ObjectDB : : get_instance ( state . script_id ) ) {
ERR_EXPLAIN ( " Resumed after yield, but script is gone " ) ;
ERR_FAIL_V ( Variant ( ) ) ;
}
# endif
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Variant arg ;
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r_error . error = Variant : : CallError : : CALL_OK ;
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ERR_FAIL_COND_V ( ! function , Variant ( ) ) ;
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if ( p_argcount = = 0 ) {
r_error . error = Variant : : CallError : : CALL_ERROR_TOO_FEW_ARGUMENTS ;
r_error . argument = 1 ;
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return Variant ( ) ;
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} else if ( p_argcount = = 1 ) {
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//noooneee
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} else if ( p_argcount = = 2 ) {
arg = * p_args [ 0 ] ;
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} else {
Array extra_args ;
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for ( int i = 0 ; i < p_argcount - 1 ; i + + ) {
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extra_args . push_back ( * p_args [ i ] ) ;
}
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arg = extra_args ;
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}
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Ref < GDFunctionState > self = * p_args [ p_argcount - 1 ] ;
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if ( self . is_null ( ) ) {
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r_error . error = Variant : : CallError : : CALL_ERROR_INVALID_ARGUMENT ;
r_error . argument = p_argcount - 1 ;
r_error . expected = Variant : : OBJECT ;
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return Variant ( ) ;
}
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state . result = arg ;
Variant ret = function - > call ( NULL , NULL , 0 , r_error , & state ) ;
function = NULL ; //cleaned up;
state . result = Variant ( ) ;
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return ret ;
}
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bool GDFunctionState : : is_valid ( bool p_extended_check ) const {
if ( function = = NULL )
return false ;
if ( p_extended_check ) {
//class instance gone?
if ( state . instance_id & & ! ObjectDB : : get_instance ( state . instance_id ) )
return false ;
//script gone?
if ( state . script_id & & ! ObjectDB : : get_instance ( state . script_id ) )
return false ;
}
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return true ;
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}
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Variant GDFunctionState : : resume ( const Variant & p_arg ) {
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ERR_FAIL_COND_V ( ! function , Variant ( ) ) ;
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# ifdef DEBUG_ENABLED
if ( state . instance_id & & ! ObjectDB : : get_instance ( state . instance_id ) ) {
ERR_EXPLAIN ( " Resumed after yield, but class instance is gone " ) ;
ERR_FAIL_V ( Variant ( ) ) ;
}
if ( state . script_id & & ! ObjectDB : : get_instance ( state . script_id ) ) {
ERR_EXPLAIN ( " Resumed after yield, but script is gone " ) ;
ERR_FAIL_V ( Variant ( ) ) ;
}
# endif
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state . result = p_arg ;
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Variant : : CallError err ;
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Variant ret = function - > call ( NULL , NULL , 0 , err , & state ) ;
function = NULL ; //cleaned up;
state . result = Variant ( ) ;
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return ret ;
}
void GDFunctionState : : _bind_methods ( ) {
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ObjectTypeDB : : bind_method ( _MD ( " resume:Variant " , " arg " ) , & GDFunctionState : : resume , DEFVAL ( Variant ( ) ) ) ;
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ObjectTypeDB : : bind_method ( _MD ( " is_valid " , " extended_check " ) , & GDFunctionState : : is_valid , DEFVAL ( false ) ) ;
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ObjectTypeDB : : bind_native_method ( METHOD_FLAGS_DEFAULT , " _signal_callback " , & GDFunctionState : : _signal_callback , MethodInfo ( " _signal_callback " ) ) ;
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}
GDFunctionState : : GDFunctionState ( ) {
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function = NULL ;
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}
GDFunctionState : : ~ GDFunctionState ( ) {
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if ( function ! = NULL ) {
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//never called, deinitialize stack
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for ( int i = 0 ; i < state . stack_size ; i + + ) {
Variant * v = ( Variant * ) & state . stack [ sizeof ( Variant ) * i ] ;
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v - > ~ Variant ( ) ;
}
}
}