def Can_render_function_taking_function_as_arg__test():
assert_rendered_program_equals(
"""
int fn1( double a, double b );
void myfn( int unused, int (*myarg)( double, double ) );
int fn1( double a, double b )
{
return 1;
}
void myfn( int unused, int (*myarg)( double, double ) )
{
}
int main( int argc, char* argv[] )
{
myfn( argc, fn1 );
return 0;
}
""",
"""
import sys
def int fn1( float a, float b ):
return 1
def void myfn( int unused, function( int, ( float, float ) ) myarg ):
pass
myfn( len( sys.argv ), fn1 )
"""
)
def Can_render_function_passed_as_arg__test():
assert_rendered_program_equals(
"""
int fn1( int unused, double n );
void myfn( int unused, int (*myarg)( int, double ) );
int fn1( int unused, double n )
{
return 1;
}
void myfn( int unused, int (*myarg)( int, double ) )
{
myarg( unused, 2.0 );
}
int main( int argc, char* argv[] )
{
myfn( argc, fn1 );
return 0;
}
""",
"""
import sys
def int fn1( int unused, float n ):
return 1
def void myfn( int unused, function( int, ( int, float ) ) myarg ):
myarg( unused, 2.0 )
myfn( len( sys.argv ), fn1 )
"""
)
def Can_render_function_passed_as_arg_taking_class__test():
assert_rendered_program_equals(
"""
struct Cls
{
};
void Cls_pep_c_pep___init__( Cls& self, int unused );
int fn1( int unused, Cls& c );
void myfn( int unused, int (*myarg)( int, Cls& ) );
void Cls_pep_c_pep___init__( Cls& self, int unused )
{
}
int fn1( int unused, Cls& c )
{
return 1;
}
void myfn( int unused, int (*myarg)( int, Cls& ) )
{
myarg( unused, 2.0 );
}
int main( int argc, char* argv[] )
{
Cls x; Cls_pep_c_pep___init__( x, argc );
fn1( argc, x );
myfn( argc, fn1 );
return 0;
}
""",
"""
import sys
class Cls:
def_init( Cls self, int unused ):
pass
def int fn1( int unused, Cls c ):
return 1
def void myfn( int unused, function( int, ( int, Cls ) ) myarg ):
myarg( unused, 2.0 )
Cls x = Cls.init( len( sys.argv ) )
fn1( len( sys.argv ), x )
myfn( len( sys.argv ), fn1 )
"""
)
def Now_evaluates_now_but_otherwise_not__test():
"""
If we render some stuff that could be evaluated at
compile time, it is not evaluated, unless we wrap it
in a call to the now() builtin.
"""
assert_rendered_program_equals(
r"""#include <stdio.h>
int main( int argc, char* argv[] )
{
printf( "%d\n", (3 * 2) );
printf( "%d\n", 6 );
return 0;
}
""",
"""
print( 3 * 2 )
print( now( 3 *2 ) )
"""
)
def Can_render_function_returning_function__test():
assert_rendered_program_equals(
"""
void (*get_fn( int unused ))( int, int );
void myfn( int unused, int i );
void (*get_fn( int unused ))( int, int )
{
return myfn;
}
void myfn( int unused, int i )
{
}
int main( int argc, char* argv[] )
{
void (*got_fn)( int, int ) = get_fn( argc );
got_fn( argc, 1 );
return 0;
}
""",
"""
import sys
def void myfn( int unused, int i ):
pass
def function( void, ( int, int ) ) get_fn( int unused ):
return myfn
function(void, ( int, int ) ) got_fn = get_fn( len( sys.argv ) )
got_fn( len( sys.argv ), 1 )
"""
)