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-rw-r--r--src/Pure.ml5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/Pure.ml b/src/Pure.ml
index 387d229f..96c7d211 100644
--- a/src/Pure.ml
+++ b/src/Pure.ml
@@ -471,6 +471,11 @@ type expression =
| Let of bool * typed_lvalue * texpression * texpression
(** Let binding.
+ TODO: the boolean should be replaced by an enum: sometimes we use
+ the error-monad, sometimes we use the state-error monad (and we
+ do this an a per-function basis! For instance, arithmetic functions
+ are always in the error monad).
+
The boolean controls whether the let is monadic or not.
For instance, in F*:
- non-monadic: `let x = ... in ...`