Class: SlimLint::Engine

Inherits:
Temple::Engine
  • Object
show all
Defined in:
lib/slim_lint/engine.rb

Overview

Temple engine used to generate a Sexp parse tree for use by linters.

We omit a lot of the filters that are in Slim::Engine because they result in information potentially being removed from the parse tree (since some Sexp abstractions are optimized/removed or otherwise transformed). In order for linters to be useful, they need to operate on the original parse tree.

The other key task this engine accomplishes is converting the Array-based S-expressions into Sexp objects, which have a number of helper methods that makes working with them easier. It also annotates these Sexp objects with line numbers so it’s easy to cross reference with the original source code.

Instance Method Summary collapse

Instance Method Details

#parse(source) ⇒ SlimLint::Sexp

Parses the given source code into a Sexp.

Parameters:

  • source (String) —

    source code to parse

Returns:



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# File 'lib/slim_lint/engine.rb', line 33

def parse(source)
  call(source)
rescue ::Slim::Parser::SyntaxError => e
  # Convert to our own exception type to isolate from upstream changes
  error = SlimLint::Exceptions::ParseError.new(e.error,
                                               e.file,
                                               e.line,
                                               e.lineno,
                                               e.column)
  raise error
end