encode as a linter

Author: MichaelChirico

.ci/linters/r/eval_parse_linter.R

@@ -0,0 +1,8 @@
+eval_parse_linter = make_linter_from_xpath(
+  "//SYMBOL_FUNCTION_CALL[text() = 'parse']
+     /ancestor::expr
+     /preceding-sibling::expr[SYMBOL_FUNCTION_CALL[text() = 'eval']]
+     /parent::expr
+  ",
+  "Avoid eval(parse()); build the language directly, possibly using substitute2()."
+)