diff options
Diffstat (limited to 'txr.1')
| -rw-r--r-- | txr.1 | 23 |
1 files changed, 18 insertions, 5 deletions
@@ -66408,11 +66408,15 @@ If a .code eval-only form is top-level form, then each of its constituent forms is also a top-level form. -.IP 5. +.IP 5 +If a +.code load-time +form is top-level form, then its argument is a top-level form. +.IP 6. When a form is identified as a top-level form by the above rule 1, its constituents are considered under rules 2-4 only after the form is fully macro-expanded. -.IP 6. +.IP 7. No other forms are top-level forms. .RE @@ -67220,8 +67224,8 @@ form, if any. If a .code load-time -form appears in an expression which is compiled, it arranges for -the compiled version of +form appears in a non-top-level expression which is compiled, the +compiler arranges for the compiled version of .meta form to be executed when compiled version of the entire expression is executed. This execution occurs early, before the execution of @@ -67236,6 +67240,15 @@ Whenever the value of that form is required, the compiled code references it from the data vector as if it were a true literal. +When a +.code load-time +top-level form is processed by +.codn compile-file , +it has no unusual semantics; the effect is that it is replaced by +its argument +.metn form , +which is in that case also considered a top-level form. + The implications of the translation scheme may be understood separately from the perspective of code processed with .codn compile-toplevel , @@ -67263,7 +67276,7 @@ in the compiled version of the function. A .code load-time -form appearing in an expression inside a file that is processed by +form appearing as a non-top-level form inside a file that is processed by .code compile-file is compiled along with that form and deposited into the object file. When the object file is loaded, each compiled top-level form is executed. |