dead_end.rb in dead_end-3.0.0

- old
+ new
@@ -1,4 +1,148 @@
 # frozen_string_literal: true
 
-require_relative "dead_end/internals"
+require_relative "dead_end/version"
+
+require "tmpdir"
+require "stringio"
+require "pathname"
+require "ripper"
+require "timeout"
+
+module DeadEnd
+  # Used to indicate a default value that cannot
+  # be confused with another input
+  DEFAULT_VALUE = Object.new.freeze
+
+  class Error < StandardError; end
+  TIMEOUT_DEFAULT = ENV.fetch("DEAD_END_TIMEOUT", 1).to_i
+
+  def self.handle_error(e)
+    filename = e.message.split(":").first
+    $stderr.sync = true
+
+    call(
+      source: Pathname(filename).read,
+      filename: filename
+    )
+
+    raise e
+  end
+
+  def self.call(source:, filename: DEFAULT_VALUE, terminal: DEFAULT_VALUE, record_dir: nil, timeout: TIMEOUT_DEFAULT, io: $stderr)
+    search = nil
+    filename = nil if filename == DEFAULT_VALUE
+    Timeout.timeout(timeout) do
+      record_dir ||= ENV["DEBUG"] ? "tmp" : nil
+      search = CodeSearch.new(source, record_dir: record_dir).call
+    end
+
+    blocks = search.invalid_blocks
+    DisplayInvalidBlocks.new(
+      io: io,
+      blocks: blocks,
+      filename: filename,
+      terminal: terminal,
+      code_lines: search.code_lines
+    ).call
+  rescue Timeout::Error => e
+    io.puts "Search timed out DEAD_END_TIMEOUT=#{timeout}, run with DEBUG=1 for more info"
+    io.puts e.backtrace.first(3).join($/)
+  end
+
+  # Used for counting spaces
+  module SpaceCount
+    def self.indent(string)
+      string.split(/\S/).first&.length || 0
+    end
+  end
+
+  # This will tell you if the `code_lines` would be valid
+  # if you removed the `without_lines`. In short it's a
+  # way to detect if we've found the lines with syntax errors
+  # in our document yet.
+  #
+  #   code_lines = [
+  #     CodeLine.new(line: "def foo\n",   index: 0)
+  #     CodeLine.new(line: "  def bar\n", index: 1)
+  #     CodeLine.new(line: "end\n",       index: 2)
+  #   ]
+  #
+  #   DeadEnd.valid_without?(
+  #     without_lines: code_lines[1],
+  #     code_lines: code_lines
+  #   )                                    # => true
+  #
+  #   DeadEnd.valid?(code_lines) # => false
+  def self.valid_without?(without_lines:, code_lines:)
+    lines = code_lines - Array(without_lines).flatten
+
+    if lines.empty?
+      true
+    else
+      valid?(lines)
+    end
+  end
+
+  def self.invalid?(source)
+    source = source.join if source.is_a?(Array)
+    source = source.to_s
+
+    Ripper.new(source).tap(&:parse).error?
+  end
+
+  # Returns truthy if a given input source is valid syntax
+  #
+  #   DeadEnd.valid?(<<~EOM) # => true
+  #     def foo
+  #     end
+  #   EOM
+  #
+  #   DeadEnd.valid?(<<~EOM) # => false
+  #     def foo
+  #       def bar # Syntax error here
+  #     end
+  #   EOM
+  #
+  # You can also pass in an array of lines and they'll be
+  # joined before evaluating
+  #
+  #   DeadEnd.valid?(
+  #     [
+  #       "def foo\n",
+  #       "end\n"
+  #     ]
+  #   ) # => true
+  #
+  #   DeadEnd.valid?(
+  #     [
+  #       "def foo\n",
+  #       "  def bar\n", # Syntax error here
+  #       "end\n"
+  #     ]
+  #   ) # => false
+  #
+  # As an FYI the CodeLine class instances respond to `to_s`
+  # so passing a CodeLine in as an object or as an array
+  # will convert it to it's code representation.
+  def self.valid?(source)
+    !invalid?(source)
+  end
+end
+
+require_relative "dead_end/code_line"
+require_relative "dead_end/code_block"
+require_relative "dead_end/code_search"
+require_relative "dead_end/code_frontier"
+require_relative "dead_end/clean_document"
+
+require_relative "dead_end/lex_all"
+require_relative "dead_end/block_expand"
+require_relative "dead_end/around_block_scan"
+require_relative "dead_end/ripper_errors"
+require_relative "dead_end/display_invalid_blocks"
+require_relative "dead_end/parse_blocks_from_indent_line"
+
+require_relative "dead_end/explain_syntax"
+
 require_relative "dead_end/auto"
+require_relative "dead_end/cli"