Restandardised formatting.

This commit is contained in:
Simon Brooke 2021-08-17 16:37:04 +01:00
parent 93d4bd14a0
commit b0a49fb71d
No known key found for this signature in database
GPG key ID: A7A4F18D1D4DF987
29 changed files with 1861 additions and 1604 deletions

View file

@ -20,9 +20,8 @@
* Shallow, and thus cheap, equality: true if these two objects are
* the same object, else false.
*/
bool eq(struct cons_pointer a, struct cons_pointer b)
{
return ((a.page == b.page) && (a.offset == b.offset));
bool eq( struct cons_pointer a, struct cons_pointer b ) {
return ( ( a.page == b.page ) && ( a.offset == b.offset ) );
}
/**
@ -32,10 +31,9 @@ bool eq(struct cons_pointer a, struct cons_pointer b)
* @return true if the objects at these two cons pointers have the same tag,
* else false.
*/
bool same_type(struct cons_pointer a, struct cons_pointer b)
{
struct cons_space_object *cell_a = &pointer2cell(a);
struct cons_space_object *cell_b = &pointer2cell(b);
bool same_type( struct cons_pointer a, struct cons_pointer b ) {
struct cons_space_object *cell_a = &pointer2cell( a );
struct cons_space_object *cell_b = &pointer2cell( b );
return cell_a->tag.value == cell_b->tag.value;
}
@ -45,104 +43,95 @@ bool same_type(struct cons_pointer a, struct cons_pointer b)
* @param string the string to test
* @return true if it's the end of a string.
*/
bool end_of_string(struct cons_pointer string)
{
return nilp(string) ||
pointer2cell(string).payload.string.character == '\0';
bool end_of_string( struct cons_pointer string ) {
return nilp( string ) ||
pointer2cell( string ).payload.string.character == '\0';
}
/**
* Deep, and thus expensive, equality: true if these two objects have
* identical structure, else false.
*/
bool equal(struct cons_pointer a, struct cons_pointer b)
{
bool result = eq(a, b);
bool equal( struct cons_pointer a, struct cons_pointer b ) {
bool result = eq( a, b );
if (!result && same_type(a, b))
{
struct cons_space_object *cell_a = &pointer2cell(a);
struct cons_space_object *cell_b = &pointer2cell(b);
if ( !result && same_type( a, b ) ) {
struct cons_space_object *cell_a = &pointer2cell( a );
struct cons_space_object *cell_b = &pointer2cell( b );
switch (cell_a->tag.value)
{
case CONSTV:
case LAMBDATV:
case NLAMBDATV:
/* TODO: it is not OK to do this on the stack since list-like
* structures can be of indefinite extent. It *must* be done by
* iteration (and even that is problematic) */
result =
equal(cell_a->payload.cons.car, cell_b->payload.cons.car) && equal(cell_a->payload.cons.cdr,
cell_b->payload.cons.cdr);
break;
case KEYTV:
case STRINGTV:
case SYMBOLTV:
/* slightly complex because a string may or may not have a '\0'
* cell at the end, but I'll ignore that for now. I think in
* practice only the empty string will.
*/
/* TODO: it is not OK to do this on the stack since list-like
* structures can be of indefinite extent. It *must* be done by
* iteration (and even that is problematic) */
result =
cell_a->payload.string.character ==
switch ( cell_a->tag.value ) {
case CONSTV:
case LAMBDATV:
case NLAMBDATV:
/* TODO: it is not OK to do this on the stack since list-like
* structures can be of indefinite extent. It *must* be done by
* iteration (and even that is problematic) */
result =
equal( cell_a->payload.cons.car, cell_b->payload.cons.car )
&& equal( cell_a->payload.cons.cdr,
cell_b->payload.cons.cdr );
break;
case KEYTV:
case STRINGTV:
case SYMBOLTV:
/* slightly complex because a string may or may not have a '\0'
* cell at the end, but I'll ignore that for now. I think in
* practice only the empty string will.
*/
/* TODO: it is not OK to do this on the stack since list-like
* structures can be of indefinite extent. It *must* be done by
* iteration (and even that is problematic) */
result =
cell_a->payload.string.character ==
cell_b->payload.string.character &&
(equal(cell_a->payload.string.cdr,
cell_b->payload.string.cdr) ||
(end_of_string(cell_a->payload.string.cdr) && end_of_string(cell_b->payload.string.cdr)));
break;
case INTEGERTV:
result =
(cell_a->payload.integer.value ==
cell_b->payload.integer.value) &&
equal(cell_a->payload.integer.more,
cell_b->payload.integer.more);
break;
case RATIOTV:
result = equal_ratio_ratio(a, b);
break;
case REALTV:
{
double num_a = to_long_double(a);
double num_b = to_long_double(b);
double max =
fabs(num_a) >
fabs(num_b)
? fabs(num_a)
: fabs(num_b);
( equal( cell_a->payload.string.cdr,
cell_b->payload.string.cdr ) ||
( end_of_string( cell_a->payload.string.cdr )
&& end_of_string( cell_b->payload.string.cdr ) ) );
break;
case INTEGERTV:
result =
( cell_a->payload.integer.value ==
cell_b->payload.integer.value ) &&
equal( cell_a->payload.integer.more,
cell_b->payload.integer.more );
break;
case RATIOTV:
result = equal_ratio_ratio( a, b );
break;
case REALTV:
{
double num_a = to_long_double( a );
double num_b = to_long_double( b );
double max = fabs( num_a ) > fabs( num_b )
? fabs( num_a )
: fabs( num_b );
/*
* not more different than one part in a million - close enough
*/
result = fabs(num_a - num_b) < (max / 1000000.0);
/*
* not more different than one part in a million - close enough
*/
result = fabs( num_a - num_b ) < ( max / 1000000.0 );
}
break;
default:
result = false;
break;
}
break;
default:
result = false;
break;
}
}
else if (numberp(a) && numberp(b))
{
if (integerp(a))
{
result = equal_integer_real(a, b);
}
else if (integerp(b))
{
result = equal_integer_real(b, a);
} else if ( numberp( a ) && numberp( b ) ) {
if ( integerp( a ) ) {
result = equal_integer_real( a, b );
} else if ( integerp( b ) ) {
result = equal_integer_real( b, a );
}
}
/*
* there's only supposed ever to be one T and one NIL cell, so each
* should be caught by eq; equality of vector-space objects is a whole
* other ball game so we won't deal with it now (and indeed may never).
* I'm not certain what equality means for read and write streams, so
* I'll ignore them, too, for now.
*/
* there's only supposed ever to be one T and one NIL cell, so each
* should be caught by eq; equality of vector-space objects is a whole
* other ball game so we won't deal with it now (and indeed may never).
* I'm not certain what equality means for read and write streams, so
* I'll ignore them, too, for now.
*/
return result;
}

View file

@ -89,16 +89,16 @@ internedp( struct cons_pointer key, struct cons_pointer store ) {
* of that key from the store; otherwise return NIL.
*/
struct cons_pointer c_assoc( struct cons_pointer key,
struct cons_pointer store ) {
struct cons_pointer store ) {
struct cons_pointer result = NIL;
debug_print( L"c_assoc; key is `", DEBUG_BIND);
debug_print_object( key, DEBUG_BIND);
debug_print( L"`\n", DEBUG_BIND);
debug_print( L"c_assoc; key is `", DEBUG_BIND );
debug_print_object( key, DEBUG_BIND );
debug_print( L"`\n", DEBUG_BIND );
if (consp(store)) {
if ( consp( store ) ) {
for ( struct cons_pointer next = store;
consp( next ); next = pointer2cell( next ).payload.cons.cdr ) {
consp( next ); next = pointer2cell( next ).payload.cons.cdr ) {
struct cons_space_object entry =
pointer2cell( pointer2cell( next ).payload.cons.car );
@ -107,15 +107,17 @@ struct cons_pointer c_assoc( struct cons_pointer key,
break;
}
}
} else if (hashmapp( store)) {
result = hashmap_get( store, key);
} else if ( hashmapp( store ) ) {
result = hashmap_get( store, key );
} else {
result = throw_exception(c_string_to_lisp_string(L"Store is of unknown type"), NIL);
result =
throw_exception( c_string_to_lisp_string
( L"Store is of unknown type" ), NIL );
}
debug_print( L"c_assoc returning ", DEBUG_BIND);
debug_print_object( result, DEBUG_BIND);
debug_println( DEBUG_BIND);
debug_print( L"c_assoc returning ", DEBUG_BIND );
debug_print_object( result, DEBUG_BIND );
debug_println( DEBUG_BIND );
return result;
}
@ -125,8 +127,8 @@ struct cons_pointer c_assoc( struct cons_pointer key,
* with this key/value pair added to the front.
*/
struct cons_pointer
set( struct cons_pointer key, struct cons_pointer value,
struct cons_pointer store ) {
set( struct cons_pointer key, struct cons_pointer value,
struct cons_pointer store ) {
struct cons_pointer result = NIL;
debug_print( L"set: binding `", DEBUG_BIND );
@ -134,18 +136,18 @@ struct cons_pointer
debug_print( L"` to `", DEBUG_BIND );
debug_print_object( value, DEBUG_BIND );
debug_print( L"` in store ", DEBUG_BIND );
debug_dump_object( store, DEBUG_BIND);
debug_dump_object( store, DEBUG_BIND );
debug_println( DEBUG_BIND );
if (nilp( store) || consp(store)) {
if ( nilp( store ) || consp( store ) ) {
result = make_cons( make_cons( key, value ), store );
} else if (hashmapp( store)) {
result = hashmap_put( store, key, value);
} else if ( hashmapp( store ) ) {
result = hashmap_put( store, key, value );
}
debug_print( L"set returning ", DEBUG_BIND);
debug_print_object( result, DEBUG_BIND);
debug_println( DEBUG_BIND);
debug_print( L"set returning ", DEBUG_BIND );
debug_print_object( result, DEBUG_BIND );
debug_println( DEBUG_BIND );
return result;
}
@ -195,4 +197,3 @@ intern( struct cons_pointer key, struct cons_pointer environment ) {
return result;
}

View file

@ -106,7 +106,7 @@ struct cons_pointer eval_forms( struct stack_frame *frame,
list = c_cdr( list );
}
return c_reverse( result);
return c_reverse( result );
}
/**
@ -121,19 +121,18 @@ struct cons_pointer eval_forms( struct stack_frame *frame,
*
* This is experimental. It almost certainly WILL change.
*/
struct cons_pointer lisp_try(struct stack_frame *frame,
struct cons_pointer frame_pointer,
struct cons_pointer env) {
struct cons_pointer result = c_progn(frame, frame_pointer, frame->arg[0], env);
struct cons_pointer lisp_try( struct stack_frame *frame,
struct cons_pointer frame_pointer,
struct cons_pointer env ) {
struct cons_pointer result =
c_progn( frame, frame_pointer, frame->arg[0], env );
if (exceptionp(result))
{
if ( exceptionp( result ) ) {
// TODO: need to put the exception into the environment!
result = c_progn(frame, frame_pointer, frame->arg[1],
make_cons(
make_cons(c_string_to_lisp_keyword(L"*exception*"),
result),
env));
result = c_progn( frame, frame_pointer, frame->arg[1],
make_cons( make_cons
( c_string_to_lisp_keyword
( L"*exception*" ), result ), env ) );
}
return result;
@ -282,8 +281,7 @@ eval_lambda( struct cons_space_object cell, struct stack_frame *frame,
result = eval_form( frame, frame_pointer, sexpr, new_env );
if (exceptionp(result))
{
if ( exceptionp( result ) ) {
break;
}
}
@ -306,8 +304,8 @@ eval_lambda( struct cons_space_object cell, struct stack_frame *frame,
* @return the result of evaluating the function with its arguments.
*/
struct cons_pointer
c_apply( struct stack_frame *frame, struct cons_pointer frame_pointer,
struct cons_pointer env ) {
c_apply( struct stack_frame *frame, struct cons_pointer frame_pointer,
struct cons_pointer env ) {
debug_print( L"Entering c_apply\n", DEBUG_EVAL );
struct cons_pointer result = NIL;
@ -322,122 +320,124 @@ struct cons_pointer
switch ( fn_cell.tag.value ) {
case EXCEPTIONTV:
/* just pass exceptions straight back */
result = fn_pointer;
break;
/* just pass exceptions straight back */
result = fn_pointer;
break;
case FUNCTIONTV:
{
struct cons_pointer exep = NIL;
struct cons_pointer next_pointer =
make_stack_frame( frame_pointer, args, env );
inc_ref( next_pointer );
if ( exceptionp( next_pointer ) ) {
result = next_pointer;
} else {
struct stack_frame *next =
get_stack_frame( next_pointer );
{
struct cons_pointer exep = NIL;
struct cons_pointer next_pointer =
make_stack_frame( frame_pointer, args, env );
inc_ref( next_pointer );
if ( exceptionp( next_pointer ) ) {
result = next_pointer;
} else {
struct stack_frame *next =
get_stack_frame( next_pointer );
result =
( *fn_cell.payload.function.executable ) ( next,
next_pointer,
env );
dec_ref( next_pointer );
}
}
break;
case KEYTV:
result = c_assoc( fn_pointer,
eval_form(frame,
frame_pointer,
c_car( c_cdr( frame->arg[0])),
env));
break;
case LAMBDATV:
{
struct cons_pointer exep = NIL;
struct cons_pointer next_pointer =
make_stack_frame( frame_pointer, args, env );
inc_ref( next_pointer );
if ( exceptionp( next_pointer ) ) {
result = next_pointer;
} else {
struct stack_frame *next =
get_stack_frame( next_pointer );
result =
eval_lambda( fn_cell, next, next_pointer, env );
if ( !exceptionp( result ) ) {
result =
( *fn_cell.payload.function.executable ) ( next,
next_pointer,
env );
dec_ref( next_pointer );
}
}
}
break;
break;
case KEYTV:
result = c_assoc( fn_pointer,
eval_form( frame,
frame_pointer,
c_car( c_cdr( frame->arg[0] ) ),
env ) );
break;
case LAMBDATV:
{
struct cons_pointer exep = NIL;
struct cons_pointer next_pointer =
make_stack_frame( frame_pointer, args, env );
inc_ref( next_pointer );
if ( exceptionp( next_pointer ) ) {
result = next_pointer;
} else {
struct stack_frame *next =
get_stack_frame( next_pointer );
result =
eval_lambda( fn_cell, next, next_pointer, env );
if ( !exceptionp( result ) ) {
dec_ref( next_pointer );
}
}
}
break;
case VECTORPOINTTV:
switch ( pointer_to_vso(fn_pointer)->header.tag.value) {
case HASHTV:
/* \todo: if arg[0] is a CONS, treat it as a path */
result = c_assoc( eval_form(frame,
frame_pointer,
c_car( c_cdr( frame->arg[0])),
env),
fn_pointer);
switch ( pointer_to_vso( fn_pointer )->header.tag.value ) {
case HASHTV:
/* \todo: if arg[0] is a CONS, treat it as a path */
result = c_assoc( eval_form( frame,
frame_pointer,
c_car( c_cdr
( frame->
arg[0] ) ),
env ), fn_pointer );
break;
}
break;
}
break;
case NLAMBDATV:
{
struct cons_pointer next_pointer =
make_special_frame( frame_pointer, args, env );
inc_ref( next_pointer );
if ( exceptionp( next_pointer ) ) {
result = next_pointer;
} else {
struct stack_frame *next =
get_stack_frame( next_pointer );
result =
eval_lambda( fn_cell, next, next_pointer, env );
dec_ref( next_pointer );
{
struct cons_pointer next_pointer =
make_special_frame( frame_pointer, args, env );
inc_ref( next_pointer );
if ( exceptionp( next_pointer ) ) {
result = next_pointer;
} else {
struct stack_frame *next =
get_stack_frame( next_pointer );
result =
eval_lambda( fn_cell, next, next_pointer, env );
dec_ref( next_pointer );
}
}
}
break;
break;
case SPECIALTV:
{
struct cons_pointer next_pointer =
make_special_frame( frame_pointer, args, env );
inc_ref( next_pointer );
if ( exceptionp( next_pointer ) ) {
result = next_pointer;
} else {
result =
( *fn_cell.payload.special.
executable ) ( get_stack_frame( next_pointer ),
next_pointer, env );
debug_print( L"Special form returning: ", DEBUG_EVAL );
debug_print_object( result, DEBUG_EVAL );
debug_println( DEBUG_EVAL );
dec_ref( next_pointer );
{
struct cons_pointer next_pointer =
make_special_frame( frame_pointer, args, env );
inc_ref( next_pointer );
if ( exceptionp( next_pointer ) ) {
result = next_pointer;
} else {
result =
( *fn_cell.payload.
special.executable ) ( get_stack_frame
( next_pointer ),
next_pointer, env );
debug_print( L"Special form returning: ", DEBUG_EVAL );
debug_print_object( result, DEBUG_EVAL );
debug_println( DEBUG_EVAL );
dec_ref( next_pointer );
}
}
}
break;
break;
default:
{
int bs = sizeof( wchar_t ) * 1024;
wchar_t *buffer = malloc( bs );
memset( buffer, '\0', bs );
swprintf( buffer, bs,
L"Unexpected cell with tag %d (%4.4s) in function position",
fn_cell.tag.value, &fn_cell.tag.bytes[0] );
struct cons_pointer message =
c_string_to_lisp_string( buffer );
free( buffer );
result = throw_exception( message, frame_pointer );
}
{
int bs = sizeof( wchar_t ) * 1024;
wchar_t *buffer = malloc( bs );
memset( buffer, '\0', bs );
swprintf( buffer, bs,
L"Unexpected cell with tag %d (%4.4s) in function position",
fn_cell.tag.value, &fn_cell.tag.bytes[0] );
struct cons_pointer message =
c_string_to_lisp_string( buffer );
free( buffer );
result = throw_exception( message, frame_pointer );
}
}
}
@ -479,7 +479,7 @@ lisp_eval( struct stack_frame *frame, struct cons_pointer frame_pointer,
switch ( cell.tag.value ) {
case CONSTV:
result = c_apply( frame, frame_pointer, env );
result = c_apply( frame, frame_pointer, env );
break;
case SYMBOLTV:
@ -781,9 +781,10 @@ lisp_cdr( struct stack_frame *frame, struct cons_pointer frame_pointer,
* @param env my environment (ignored).
* @return the length of `any`, if it is a sequence, or zero otherwise.
*/
struct cons_pointer lisp_length( struct stack_frame *frame, struct cons_pointer frame_pointer,
struct cons_pointer env ) {
return make_integer( c_length( frame->arg[0]), NIL);
struct cons_pointer lisp_length( struct stack_frame *frame,
struct cons_pointer frame_pointer,
struct cons_pointer env ) {
return make_integer( c_length( frame->arg[0] ), NIL );
}
/**
@ -802,24 +803,24 @@ lisp_assoc( struct stack_frame *frame, struct cons_pointer frame_pointer,
return c_assoc( frame->arg[0], frame->arg[1] );
}
struct cons_pointer c_keys(struct cons_pointer store) {
struct cons_pointer result = NIL;
struct cons_pointer c_keys( struct cons_pointer store ) {
struct cons_pointer result = NIL;
if ( hashmapp( store ) ) {
result = hashmap_keys( store );
} else if ( consp( store ) ) {
for ( struct cons_pointer c = store; !nilp( c ); c = c_cdr( c ) ) {
result = make_cons( c_car( c ), result );
if ( hashmapp( store ) ) {
result = hashmap_keys( store );
} else if ( consp( store ) ) {
for ( struct cons_pointer c = store; !nilp( c ); c = c_cdr( c ) ) {
result = make_cons( c_car( c ), result );
}
}
}
return result;
return result;
}
struct cons_pointer lisp_keys( struct stack_frame *frame,
struct cons_pointer frame_pointer,
struct cons_pointer env ) {
return c_keys( frame->arg[0]);
return c_keys( frame->arg[0] );
}
/**
@ -962,26 +963,26 @@ struct cons_pointer lisp_reverse( struct stack_frame *frame,
struct cons_pointer lisp_inspect( struct stack_frame *frame,
struct cons_pointer frame_pointer,
struct cons_pointer env ) {
debug_print( L"Entering lisp_inspect\n", DEBUG_IO );
struct cons_pointer result = NIL;
struct cons_pointer out_stream = writep( frame->arg[1] )
? frame->arg[1]
: get_default_stream( false, env );
URL_FILE *output;
debug_print( L"Entering lisp_inspect\n", DEBUG_IO );
struct cons_pointer result = NIL;
struct cons_pointer out_stream = writep( frame->arg[1] )
? frame->arg[1]
: get_default_stream( false, env );
URL_FILE *output;
if ( writep( out_stream ) ) {
debug_print( L"lisp_inspect: setting output stream\n", DEBUG_IO );
debug_dump_object( out_stream, DEBUG_IO );
output = pointer2cell( out_stream ).payload.stream.stream;
} else {
output = file_to_url_file( stderr );
}
if ( writep( out_stream ) ) {
debug_print( L"lisp_inspect: setting output stream\n", DEBUG_IO );
debug_dump_object( out_stream, DEBUG_IO );
output = pointer2cell( out_stream ).payload.stream.stream;
} else {
output = file_to_url_file( stderr );
}
dump_object( output, frame->arg[0] );
dump_object( output, frame->arg[0] );
debug_print( L"Leaving lisp_inspect", DEBUG_IO );
debug_print( L"Leaving lisp_inspect", DEBUG_IO );
return result;
return result;
}
/**
@ -1064,7 +1065,7 @@ c_progn( struct stack_frame *frame, struct cons_pointer frame_pointer,
result = eval_form( frame, frame_pointer, c_car( expressions ), env );
dec_ref( r );
expressions = exceptionp(result) ? NIL : c_cdr( expressions );
expressions = exceptionp( result ) ? NIL : c_cdr( expressions );
}
return result;
@ -1332,7 +1333,7 @@ struct cons_pointer lisp_source( struct stack_frame *frame,
case SPECIALTV:
result = c_assoc( source_key, cell.payload.special.meta );
break;
case LAMBDATV:
case LAMBDATV:
result = make_cons( c_string_to_lisp_symbol( L"lambda" ),
make_cons( cell.payload.lambda.args,
cell.payload.lambda.body ) );

View file

@ -127,8 +127,8 @@ struct cons_pointer lisp_cdr( struct stack_frame *frame,
struct cons_pointer frame_pointer,
struct cons_pointer env );
struct cons_pointer lisp_inspect( struct stack_frame *frame,
struct cons_pointer frame_pointer,
struct cons_pointer env );
struct cons_pointer frame_pointer,
struct cons_pointer env );
struct cons_pointer lisp_eq( struct stack_frame *frame,
struct cons_pointer frame_pointer,
struct cons_pointer env );