changeset 3:86c31f04fd15

lazycall is very useless.
author Lewin Bormann <lbo@spheniscida.de>
date Fri, 20 Nov 2020 23:31:09 +0100
parents 2b71ed370156
children 55bf86f40457
files README.md
diffstat 1 files changed, 21 insertions(+), 0 deletions(-) [+]
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/README.md	Fri Nov 20 23:31:09 2020 +0100
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+# `lazycall`
+
+is very useless. It allows for automatically moving the computation of arguments
+into a called function.
+
+```rust
+#[lazy]
+fn myfunc(a: i32) -> i32 {
+  a + 1
+}
+
+fn main() {
+  println!("{}", lazycall!(myfunc(31)));
+
+  // essentially:
+  println!("{}", myfunc_lazy(|| myfunc(31)));
+  // wherein myfunc_lazy() evaluates the specified closure.
+}
+```
+
+It is mostly to be viewed as a finger exercise in procedural macros.