Class: RubyJard::Screens::VariablesScreen

Inherits:
RubyJard::Screen show all
Defined in:
lib/ruby_jard/screens/variables_screen.rb

Overview

Display the relevant variables and constants of current context, scopes

Constant Summary collapse

KINDS = 
[
  KIND_SELF = :self,
  KIND_LOC  = :local_variable,
  KIND_INS  = :instance_variable,
  KIND_CON  = :constant,
  KIND_GLOB = :global_variable
].freeze
KIND_STYLES = 
{
  KIND_SELF => :constant,
  KIND_LOC  => :local_variable,
  KIND_INS  => :instance_variable,
  KIND_CON  => :constant,
  KIND_GLOB => :instance_variable
}.freeze
KIND_PRIORITIES = 
{
  KIND_SELF => 0,
  KIND_LOC  => 1,
  KIND_INS  => 2,
  KIND_CON  => 3,
  KIND_GLOB => 4
}.freeze
TOKEN_KIND_MAPS = 
{
  ident: KIND_LOC,
  instance_variable: KIND_INS,
  constant: KIND_CON,
  predefined_constant: KIND_CON,
  global_variable: KIND_GLOB
}.freeze
TOKEN_KINDS = 
TOKEN_KIND_MAPS.keys.flatten

Instance Attribute Summary

Attributes inherited from RubyJard::Screen

#cursor, #layout, #rows, #selected, #window

Instance Method Summary collapse

Methods inherited from RubyJard::Screen

#click, #move_down, #move_up, #page_down, #page_up

Constructor Details

#initialize(*args) ⇒ VariablesScreen

Returns a new instance of VariablesScreen.



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# File 'lib/ruby_jard/screens/variables_screen.rb', line 41

def initialize(*args)
  super

  @frame_file = @session.current_frame&.frame_file
  @frame_line = @session.current_frame&.frame_line
  @frame_self = @session.current_frame&.frame_self
  @frame_class = @session.current_frame&.frame_class
  @frame_binding = @session.current_frame&.frame_binding

  @inline_tokens = generate_inline_tokens(@frame_file, @frame_line)
  @file_tokens = generate_file_tokens(@frame_file)

  @inspection_decorator = RubyJard::Decorators::InspectionDecorator.new

  @selected = 0
end

Instance Method Details

#base_row(name, size, assignment, mark, base_inspection) ⇒ Object 



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# File 'lib/ruby_jard/screens/variables_screen.rb', line 92

def base_row(name, size, assignment, mark, base_inspection)
  RubyJard::Row.new(
    line_limit: 3,
    columns: [
      RubyJard::Column.new(spans: [mark]),
      RubyJard::Column.new(
        word_wrap: RubyJard::Column::WORD_WRAP_BREAK_WORD,
        spans: [name, size, assignment, base_inspection].flatten.compact
      )
    ]
  )
end

#build ⇒ Object 



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# File 'lib/ruby_jard/screens/variables_screen.rb', line 62

def build
  variables = fetch_relevant_variables
  @rows = variables.map do |variable|
    name = span_name(variable)
    size = span_size(variable)
    assignment = RubyJard::Span.new(margin_right: 1, margin_left: 1, content: '=', styles: :text_primary)
    inline_limit =
      (@layout.width - 3) * 3 - name.content_length - size.content_length - assignment.content_length
    inspections = @inspection_decorator.decorate_multiline(
      variable[2], first_line_limit: inline_limit, line_limit: @layout.width - 3, lines: 7
    )
    base_inspection = inspections.shift
    mark = span_mark(variable, inspections)
    [
      base_row(name, size, assignment, mark, base_inspection),
      nested_rows(variable, inspections)
    ]
  end.flatten.compact
end

#fetch_relevant_variables ⇒ Object 



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# File 'lib/ruby_jard/screens/variables_screen.rb', line 82

def fetch_relevant_variables
  sort_variables(
    self_variable +
    fetch_local_variables +
    fetch_instance_variables +
    fetch_constants +
    fetch_global_variables
  )
end

#nested_rows(variable, nested_inspections) ⇒ Object 



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# File 'lib/ruby_jard/screens/variables_screen.rb', line 105

def nested_rows(variable, nested_inspections)
  return nil if nested_inspections.empty? || variable[0] == KIND_SELF

  nested_inspections.map do |spans|
    RubyJard::Row.new(
      line_limit: 1,
      columns: [
        RubyJard::Column.new,
        RubyJard::Column.new(
          word_wrap: RubyJard::Column::WORD_WRAP_BREAK_WORD,
          spans: spans
        )
      ]
    )
  end
end

#span_mark(variable, nested_inspections) ⇒ Object 



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# File 'lib/ruby_jard/screens/variables_screen.rb', line 122

def span_mark(variable, nested_inspections)
  if variable[0] == KIND_SELF || nested_inspections.empty?
    RubyJard::Span.new(
      content: ' ',
      styles: :text_dim
    )
  else
    RubyJard::Span.new(
      content: '▾',
      styles: :text_dim
    )
  end
end

#span_name(variable) ⇒ Object 



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# File 'lib/ruby_jard/screens/variables_screen.rb', line 136

def span_name(variable)
  RubyJard::Span.new(
    content: variable[1].to_s,
    styles: [KIND_STYLES[variable[0].to_sym], inline?(variable[1]) ? :underline : nil]
  )
end

#span_size(variable) ⇒ Object 



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# File 'lib/ruby_jard/screens/variables_screen.rb', line 143

def span_size(variable)
  value = variable[2]
  size_label =
    if RubyJard::Reflection.call_is_a?(value, Array) && !value.empty?
      "(len:#{value.length})"
    elsif RubyJard::Reflection.call_is_a?(value, String) && value.length > 20
      "(len:#{value.length})"
    elsif RubyJard::Reflection.call_is_a?(value, Hash) && !value.empty?
      "(size:#{value.length})"
    end
  RubyJard::Span.new(
    margin_left: 1,
    content: size_label,
    styles: :text_primary
  )
end

#title ⇒ Object 



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# File 'lib/ruby_jard/screens/variables_screen.rb', line 58

def title
  'Variables'
end