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| author | Kaz Kylheku <kaz@kylheku.com> | 2015-10-01 06:47:21 -0700 |
|---|---|---|
| committer | Kaz Kylheku <kaz@kylheku.com> | 2015-10-01 06:47:21 -0700 |
| commit | 6e3ee573178e8860bb79f68153bfa7ed7ac949c7 (patch) | |
| tree | e38006b4b8269ac947bf04be46a9c56b1ca2bf2b /txr.1 | |
| parent | 4f2f121684a68f0bd43c113d5b07436430692601 (diff) | |
| download | txr-6e3ee573178e8860bb79f68153bfa7ed7ac949c7.tar.gz txr-6e3ee573178e8860bb79f68153bfa7ed7ac949c7.tar.bz2 txr-6e3ee573178e8860bb79f68153bfa7ed7ac949c7.zip | |
New super-method function.
* struct.c (struct_init): Register super-method.
(super_method): New function.
* struct.h (super_method): Declared.
* txr.1: Documented.
Diffstat (limited to 'txr.1')
| -rw-r--r-- | txr.1 | 31 |
1 files changed, 31 insertions, 0 deletions
@@ -18561,6 +18561,37 @@ Note: the macro is an alternative interface which is suitable if the slot name isn't a computed value. +.coNP Function @ super-method +.synb +.mets (super-method < struct-obj << slot-name ) +.syne +.desc +The +.code super-method +function retrieves a function from a static +slot belonging to the supertype of the structure type of +.metn struct-obj . + +It then returns a function which binds +that function's left argument to the structure. + +The +.meta struct-obj +argument must be a structure which has a supertype, and +.meta slot-name +must be a symbol denoting a static slot in that supertype. +The slot must hold a function of at least one +argument. + +The +.code super-method +function returns a function which, when invoked, +calls the function previously retrieved from +the supertype's static slot, passing to that function +.meta struct-obj +as the leftmost argument, followed by the function's +own arguments. + .coNP Function @ slot-p .synb .mets (slot-p < type << name ) |