* Remove unused macro
* Remove unused default arg in test
* Warn on unused defp/defmacrop using unquote/1
* Add tests for metaprogrammed clauses without warnings
Before this patch, this code would add a compile-time
dependency to Bar and Baz:
defmodule Foo do
@mods [Bar, Baz]
def example(arg) when arg in @mods, do: arg
end
That's because Bar and Baz were read in the module body,
even though ultimately they are only expanded and used
inside a function.
This patch postpones the expansion of aliases until they
are used. So if `@mods` is only used inside functions,
no compile-time deps are added.
Closes#11714.
Ideally we want to list them as requires but we don't have
the infrastructure to do so. So meanwhile, we list them
as exports, which is the same level used by require.
Previously, the internal Elixir expansion pass worked directly on
Macro.Env. However, this poised an issue, if we want to track
more information in the pass, we ended up exposing it on
Macro.Env, making it larger, and potentially slowing down
operations such as __ENV__ serialization.
This commit refactors the expansion pass to work with two
structures, the Macro.Env struct and a #elixir_ex{} record.
Fixes#9392.
When a local bodiless function is called the generated Erlang code is invalid, this commit checks for bodiless locals during the compilation and raises an error on that avoiding the invalid code.
This feature allows IDEs and other tools wanting to
perform source code analysis to do so reliably without
a need to reimplement Elixir's compiler expansion and
without relying on Elixir's private APIs.
This commit also adds :parser_options to compiler
options, which allows developers to combine both options
to retrieve more accurate information, such as columns.
In case a bodiless clause with defaults was defined twice,
Elixir would raise an error. This commit fixes this and also
provide two distinct messages: an error in any situation a
default is declared more than once. And a warning in case
defaults are defined once but not as the first clause.
Previously we kept a Set table for attributes and a Bag table
for function definitions and clauses. This led to suboptimal
usage of ets tables.
With this commit, we start using both Bag and Set tables
to store function/macro definition information. In the next
commits we will continue generalizing the tables, storing
specs, docs and accumulated attributes in the Bag and keep
the remaining functionality in Set.
José Valim
Jean Klingler
Eksperimental
José Valim
Eric Meadows-Jönsson
Glauber Campinho
Zacck Osiemo
José Valim
Michał Muskała