Class: Flexr::Generator

Inherits:
Object
  • Object
show all
Defined in:
lib/flexr/generator.rb

Constant Summary collapse

INLINE_EMIT = 
/\Aemit(?:\s+(.+?))?\z/
INLINE_EMIT_ARGUMENTS = 
/\A(?::[A-Za-z_]\w*|true|false|nil|-?\d+(?:\.\d+)?|"(?:\\.|[^"])*"|'(?:\\.|[^'])*'|text(?:\.(?:to_f|to_i|bytesize|byteslice\([^()\n]+\)))?|lineno|line)(?:\s*,\s*(?::[A-Za-z_]\w*|true|false|nil|-?\d+(?:\.\d+)?|"(?:\\.|[^"])*"|'(?:\\.|[^'])*'|text(?:\.(?:to_f|to_i|bytesize|byteslice\([^()\n]+\)))?|lineno|line))*\z/
RUNTIME_SOURCES = 
%w[
  version.rb errors.rb diagnostics.rb action_resolver.rb configuration.rb ir.rb
  unicode/version.rb automaton/types.rb automaton/dfa.rb automaton/analysis.rb automaton/accel.rb
  runtime/location.rb runtime/token.rb runtime/buffer.rb runtime/errors.rb
  runtime/interpreter.rb runtime/core.rb dsl.rb lexer.rb generated.rb
].freeze
MATCHER_RUNTIME_SOURCES = 
%w[
  regexp/ast.rb regexp/parser.rb regexp/unsupported.rb
  unicode/utf8_splitter.rb unicode/data/properties.rb unicode/data/case_folding.rb
  unicode/property.rb unicode/reference_regexp.rb unicode/case_fold.rb
].freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path, output: nil, eval_mode: false, options: {}) ⇒ Generator

Returns a new instance of Generator.



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# File 'lib/flexr/generator.rb', line 29

def initialize(path, output: nil, eval_mode: false, options: {})
  @path = path
  @output = output
  @eval_mode = eval_mode
  @options = options
  @diagnostics = []
end

Instance Attribute Details

#diagnostics ⇒ Object (readonly)

Returns the value of attribute diagnostics.



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# File 'lib/flexr/generator.rb', line 11

def diagnostics
  @diagnostics
end

Instance Method Details

#generate ⇒ Object 



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# File 'lib/flexr/generator.rb', line 37

def generate
  ArtifactWriter.ensure_distinct!(@path, @output) if @output
  # Keep generated source stable when a checkout presents the spec with
  # Windows line endings. All offsets consumed by the parser and
  # passthrough writer are relative to this normalized source.
  source = File.binread(@path).gsub(/\r\n?/, "\n").force_encoding(Encoding::UTF_8)
  result = if @eval_mode
    generate_from_runtime(source)
  else
    parsed = Source::PrismReader.new(source, path: @path).read
    generate_static(parsed)
  end
  ArtifactWriter.write!(@output, result, source_path: @path) if @output
  result
end