Questions tagged [macroexpansion]
7 questions
3
votes
2 answers
Why does pp-macroexpand return nonsense for cl-loop?
Consider the following cl-loop:
(cl-loop for x across "abc"
for y across "123"
concat (string x y))
This evaluates to "a1b2c3", i.e. it zips both strings together. However, if I look at the expansion of cl-loop it seems like that…
Zeta
- 1,045
- 9
- 18
3
votes
1 answer
Why does `make-symbol` work in macro expansion, just as `gensym` works?
In the dash library I noticed the use of make-symbol to avoid symbol conflicts during macro expansion.
(defmacro --filter (form list)
"Anaphoric form of `-filter'.
See also: `--remove'."
(declare (debug (form form)))
(let ((r (make-symbol…
Aquaactress
- 1,393
- 8
- 11
1
vote
1 answer
Why are `defvars` in my macro ignored?
I want to use a macro to define variables. However, evaluating the macro does not define these vars. I seem to be missing something, but I can't find it. Here's the code:
(defmacro delve--build-cmp (name desc sort-fn-asc sort-fn-desc slot-fn…
Public Image Ltd.
- 129
- 7
1
vote
0 answers
Navigating to a `defconst` variable defined by a Lisp macro
My goal is to define a const variable within a non-trivial macro that can be navigated to after calling describe-variable.
The design goal of my macro works just fine if I define it like so:
(defmacro test (symbol)
`(defconst ,symbol nil))
(test…
John DeBord
- 550
- 3
- 13
1
vote
1 answer
org-mode text expansion macro in src block
Is it possible to use an org-mode #+MACRO: in an org-babel block?
I'm getting this in the #+RESULTS: block when I evaluate the src block with C-c C-c:
#+MACRO: COMPILE_FLAGS -std=c99 -Wall -Werror -pedantic
#+begin_src shell
echo…
Alex Shroyer
- 627
- 4
- 12
0
votes
1 answer
How to use the same variable name with let when calling defmacro?
This is only an example, I understand this can easily be achieved with a function.
Don't Work
This is what I've come up with based on the elisp manual and a couple of answers/articles that I have read. The suggestion is to use gensym, but I can't…
Rick
- 25
- 4
0
votes
1 answer
The call stack result of profile-report doesn't match the real function codes
I'm trying to figure out why my emacs was slow tonight and found:
- command-execute 82796 87%
- call-interactively 82792 87%
- funcall-interactively …
Chen Li
- 137
- 1
- 7