lib/syntax_suggest/display_invalid_blocks.rb

   1 # frozen_string_literal: true
   2
   3 require_relative "capture_code_context"
   4 require_relative "display_code_with_line_numbers"
   5
   6 module SyntaxSuggest
   7   # Used for formatting invalid blocks
   8   class DisplayInvalidBlocks
   9     attr_reader :filename
  10
  11     def initialize(code_lines:, blocks:, io: $stderr, filename: nil, terminal: DEFAULT_VALUE)
  12       @io = io
  13       @blocks = Array(blocks)
  14       @filename = filename
  15       @code_lines = code_lines
  16
  17       @terminal = (terminal == DEFAULT_VALUE) ? io.isatty : terminal
  18     end
  19
  20     def document_ok?
  21       @blocks.none? { |b| !b.hidden? }
  22     end
  23
  24     def call
  25       if document_ok?
  26         return self
  27       end
  28
  29       if filename
  30         @io.puts("--> #{filename}")
  31         @io.puts
  32       end
  33       @blocks.each do |block|
  34         display_block(block)
  35       end
  36
  37       self
  38     end
  39
  40     private def display_block(block)
  41       # Build explanation
  42       explain = ExplainSyntax.new(
  43         code_lines: block.lines
  44       ).call
  45
  46       # Enhance code output
  47       # Also handles several ambiguious cases
  48       lines = CaptureCodeContext.new(
  49         blocks: block,
  50         code_lines: @code_lines
  51       ).call
  52
  53       # Build code output
  54       document = DisplayCodeWithLineNumbers.new(
  55         lines: lines,
  56         terminal: @terminal,
  57         highlight_lines: block.lines
  58       ).call
  59
  60       # Output syntax error explanation
  61       explain.errors.each do |e|
  62         @io.puts e
  63       end
  64       @io.puts
  65
  66       # Output code
  67       @io.puts(document)
  68     end
  69
  70     private def code_with_context
  71       lines = CaptureCodeContext.new(
  72         blocks: @blocks,
  73         code_lines: @code_lines
  74       ).call
  75
  76       DisplayCodeWithLineNumbers.new(
  77         lines: lines,
  78         terminal: @terminal,
  79         highlight_lines: @invalid_lines
  80       ).call
  81     end
  82   end
  83 end