Lowercase module names

This change has a few benefits:

- Module names will be easier to call from Erlang, Elixir, etc.
- We can now import (for example) the `result` module and the `Result`
  type and not have ambiguity as to which we mean in the code.

1 files changed, 24 insertions, 0 deletions

diff --git a/src/foreign.gleam b/src/foreign.gleam
new file mode 100644
index 0000000..e921ea8
--- /dev/null
+++ b/src/foreign.gleam
@@ -0,0 +1,24 @@
+doc """
+Foreign data is data that we don't know the type of yet.
+We likely get data like this from interop with Erlang, or from
+IO with the outside world.
+"""
+pub external type Foreign
+;
+
+doc """
+Convert any Gleam data into Foreign data.
+"""
+pub external fn new(a) => Foreign = 'Gleam.Foreign' 'identity'
+
+doc """
+Unsafely cast any type into any other type.o
+
+This is an escape hatch for the type system that may be useful when wrapping
+native Erlang APIs. It is to be used as a last measure only.
+"""
+pub external fn unsafeCoerce(a) => b = 'Gleam.Foreign' 'identity'
+
+fn identity(x) {
+  x
+}