Class: Oozby

Inherits:
Object
  • Object
show all
Defined in:
lib/oozby/base.rb,
lib/oozby/version.rb

Overview

Oozby class loads up files and evaluates them to a syntax tree, and renders to openscad source code

Defined Under Namespace

Modules: Geometry Classes: Element, Environment, Preprocessor, Render

Constant Summary collapse

Version = 
'0.4.4'

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Oozby

Returns a new instance of Oozby.



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# File 'lib/oozby/base.rb', line 7

def initialize
  @code_tree = []
  @filter_errors = false
  @debug = false
end

Instance Attribute Details

#debug ⇒ Object

Returns the value of attribute debug.



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# File 'lib/oozby/base.rb', line 5

def debug
  @debug
end

#filter_errors ⇒ Object

Returns the value of attribute filter_errors.



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# File 'lib/oozby/base.rb', line 5

def filter_errors
  @filter_errors
end

Class Method Details

.version ⇒ Object 



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# File 'lib/oozby/version.rb', line 4

def self.version
  Oozby::Version
end

Instance Method Details

#abstract_tree ⇒ Object 



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# File 'lib/oozby/base.rb', line 58

def abstract_tree
  @code_tree
end

#parse(code, filename: 'eval') ⇒ Object

parse oozby code in to a syntax tree



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# File 'lib/oozby/base.rb', line 14

def parse code, filename: 'eval'
  env = Oozby::Environment.new(ooz: self)
  if File.exists? filename
    current_dir = Dir.pwd
    Dir.chdir File.dirname(filename)
  end
  
  # rescue block to filter out junk oozby library stuff from backtraces
  begin
    compiled = eval("lambda {; #{code}\n }", nil, filename)
    env._execute_oozby(&compiled)
  rescue StandardError, NoMethodError => err
    backtrace = $!.backtrace
    #backtrace = backtrace.select { |item| !item.include? __dir__ } unless backtrace.first.include? __dir__
    
    if @filter_errors # and backtrace.index { |i| i.include? ".oozby:" } < 3
      execute_oozby_idx = backtrace.index { |i| i.include? "in `_execute_oozby'" }
      backtrace = backtrace[0...execute_oozby_idx] if execute_oozby_idx
      backtrace.delete_if do |item|
        filename = item.split(':').first
        filename = File.realpath(filename)
        filename.start_with? __dir__
      end
    end
    
    raise $!, $!.message, backtrace
  end
  @code_tree = env._abstract_tree
  
ensure
  Dir.chdir current_dir if current_dir
end

#parse_file(filename) ⇒ Object

parse a file containing oozby code in to a syntax tree



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# File 'lib/oozby/base.rb', line 48

def parse_file filename
  parse File.read(filename), filename: filename
end

#render ⇒ Object

render the last parsed oozby code in to openscad source code



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# File 'lib/oozby/base.rb', line 53

def render
  renderer = Oozby::Render.new(ooz: self)
  renderer.render(@code_tree, clean: true).join("\n") + "\n"
end