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caffeine_lang
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0.0.1
A compiler for generating reliability artifacts from service expectation definitions.
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Files
src/caffeine_query_language@resolver.erl
-module(caffeine_query_language@resolver).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch, inline]).
-define(FILEPATH, "src/caffeine_query_language/resolver.gleam").
-export([comparator_to_string/1, resolve_primitives/1]).
-export_type([primitives/0, comparator/0]).
-if(?OTP_RELEASE >= 27).
-define(MODULEDOC(Str), -moduledoc(Str)).
-define(DOC(Str), -doc(Str)).
-else.
-define(MODULEDOC(Str), -compile([])).
-define(DOC(Str), -compile([])).
-endif.
-type primitives() :: {good_over_total,
caffeine_query_language@parser:exp(),
caffeine_query_language@parser:exp()} |
{time_slice, comparator(), integer(), float(), binary()}.
-type comparator() :: less_than |
less_than_or_equal_to |
greater_than |
greater_than_or_equal_to.
-file("src/caffeine_query_language/resolver.gleam", 37).
?DOC(false).
-spec comparator_to_string(comparator()) -> binary().
comparator_to_string(Comparator) ->
case Comparator of
less_than ->
<<"\"<\""/utf8>>;
less_than_or_equal_to ->
<<"\"<=\""/utf8>>;
greater_than ->
<<"\">\""/utf8>>;
greater_than_or_equal_to ->
<<"\">=\""/utf8>>
end.
-file("src/caffeine_query_language/resolver.gleam", 47).
?DOC(" Converts a parser Comparator to a resolver Comparator.\n").
-spec convert_comparator(caffeine_query_language@parser:comparator()) -> comparator().
convert_comparator(Comp) ->
case Comp of
less_than ->
less_than;
less_than_or_equal_to ->
less_than_or_equal_to;
greater_than ->
greater_than;
greater_than_or_equal_to ->
greater_than_or_equal_to
end.
-file("src/caffeine_query_language/resolver.gleam", 92).
?DOC(" Checks if an expression contains a time_slice expression anywhere.\n").
-spec contains_time_slice(caffeine_query_language@parser:exp()) -> boolean().
contains_time_slice(Exp) ->
case Exp of
{time_slice_expr, _} ->
true;
{operator_expr, Left, Right, _} ->
contains_time_slice(Left) orelse contains_time_slice(Right);
{primary, {primary_exp, Inner}} ->
contains_time_slice(Inner);
{primary, {primary_word, _}} ->
false
end.
-file("src/caffeine_query_language/resolver.gleam", 60).
?DOC(false).
-spec resolve_primitives(caffeine_query_language@parser:exp_container()) -> {ok,
primitives()} |
{error, caffeine_lang@common@errors:compilation_error()}.
resolve_primitives(Exp_container) ->
case Exp_container of
{exp_container, Exp} ->
case Exp of
{operator_expr, Left, Right, 'div'} ->
case contains_time_slice(Left) orelse contains_time_slice(
Right
) of
true ->
{error,
{c_q_l_resolver_error,
<<"time_slice cannot be used as an operand. It must be the entire expression."/utf8>>}};
false ->
{ok, {good_over_total, Left, Right}}
end;
{time_slice_expr, Spec} ->
{ok,
{time_slice,
convert_comparator(erlang:element(3, Spec)),
erlang:trunc(erlang:element(5, Spec)),
erlang:element(4, Spec),
erlang:element(2, Spec)}};
_ ->
{error,
{c_q_l_resolver_error,
<<"Invalid expression. Expected a top level division operator or time_slice."/utf8>>}}
end
end.