53 lines
1.7 KiB
Factor
53 lines
1.7 KiB
Factor
USING: alien.c-types compiler.cfg.instructions help.markup help.syntax make
|
|
math ;
|
|
IN: compiler.cfg.builder.alien.boxing
|
|
|
|
HELP: box
|
|
{ $values
|
|
{ "vregs" "a one-element sequence containing a virtual register indentifier" }
|
|
{ "reps" "a one-element sequence containing a representation symbol" }
|
|
{ "c-type" c-type }
|
|
{ "dst" "box" }
|
|
}
|
|
{ $description "Emits a " { $link ##box-alien } " instruction which boxes an alien value contained in the given register." }
|
|
{ $examples
|
|
{ $unchecked-example
|
|
"USING: compiler.cfg.builder.alien.boxing make prettyprint ;"
|
|
"{ 71 } { int-rep } void* base-type [ box ] { } make nip ."
|
|
"{ T{ ##box-alien { dst 105 } { src 71 } { temp 104 } } }"
|
|
}
|
|
}
|
|
{ $see-also ##box-alien } ;
|
|
|
|
HELP: box-return
|
|
{ $values
|
|
{ "vregs" "vregs that contains the return value of the alien call" }
|
|
{ "reps" "representations of the vregs" }
|
|
{ "c-type" abstract-c-type }
|
|
{ "dst" "vreg in which the boxed value, or a reference to it, will be placed" }
|
|
}
|
|
{ $description "Emits instructions for boxing the return value from an alien function call." }
|
|
{ $examples
|
|
{ $unchecked-example
|
|
"USING: compiler.cfg.builder.alien.boxing kernel make prettyprint ;"
|
|
"[ { 10 } { tagged-rep } int base-type box-return drop ] { } make ."
|
|
"{ T{ ##convert-integer { dst 118 } { src 10 } { c-type int } } }"
|
|
}
|
|
}
|
|
{ $see-also ##box-alien } ;
|
|
|
|
HELP: stack-size
|
|
{ $values
|
|
{ "c-type" c-type }
|
|
{ "n" number }
|
|
}
|
|
{ $description "Calculates how many bytes of stack space an instance of the C type requires." }
|
|
{ $examples
|
|
{ $unchecked-example
|
|
"USING: compiler.cfg.builder.alien.boxing prettyprint vm ;"
|
|
"context base-type stack-size ."
|
|
"144"
|
|
}
|
|
}
|
|
{ $see-also heap-size } ;
|