The Spark verifier of the language of each code element
It runs one time for each deck module at compile time. A code element with
a language that no lexer registers shows its lines with no colors, so a
misspelled name, such as "elixr", gives no visible error. The verifier
gives a warning for such a language, with the list of the languages that
Expresso.Highlight.languages/0 returns. The deck still compiles, and the
element shows plain text. A code element with no language gets no warning.
Summary
Functions
Give a warning for each code element of the deck with a language that no lexer registers
Types
@type warning() :: {String.t(), :erl_anno.anno()} | String.t()
A warning of the verifier, with the location of the code element