Class: TRuby::Parser

Inherits:
Object
  • Object
show all
Defined in:
lib/t_ruby/parser.rb

Overview

Enhanced Parser using Parser Combinator for complex type expressions Maintains backward compatibility with original Parser interface

Constant Summary collapse

VALID_TYPES =

Type names that are recognized as valid

%w[String Integer Boolean Array Hash Symbol void nil].freeze
IDENTIFIER_CHAR =

Pattern for method/variable names that supports Unicode characters pL matches any Unicode letter, pN matches any Unicode number

'[\p{L}\p{N}_]'
METHOD_NAME_PATTERN =

Method names can end with ? or !

"#{IDENTIFIER_CHAR}+[?!]?".freeze
VISIBILITY_PATTERN =

Visibility modifiers for method definitions

'(?:(?:private|protected|public)\s+)?'

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(source, parse_body: true) ⇒ Parser

Returns a new instance of Parser.



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# File 'lib/t_ruby/parser.rb', line 23

def initialize(source, parse_body: true)
  @source = source
  @lines = source.split("\n")
  @parse_body = parse_body
  @type_parser = ParserCombinator::TypeParser.new
  @body_parser = ParserCombinator::TokenBodyParser.new if parse_body
  @ir_program = nil
end

Instance Attribute Details

#ir_program ⇒ Object (readonly)

TODO: Replace regex-based parsing with TokenDeclarationParser See: lib/t_ruby/parser_combinator/token/token_declaration_parser.rb



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# File 'lib/t_ruby/parser.rb', line 21

def ir_program
  @ir_program
end

#source ⇒ Object (readonly)

TODO: Replace regex-based parsing with TokenDeclarationParser See: lib/t_ruby/parser_combinator/token/token_declaration_parser.rb



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# File 'lib/t_ruby/parser.rb', line 21

def source
  @source
end

Instance Method Details

#parse ⇒ Object 



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# File 'lib/t_ruby/parser.rb', line 32

def parse
  functions = []
  type_aliases = []
  interfaces = []
  classes = []
  i = 0

  # Pre-detect heredoc regions to skip
  heredoc_ranges = HeredocDetector.detect(@lines)

  while i < @lines.length
    # Skip lines inside heredoc content
    if HeredocDetector.inside_heredoc?(i, heredoc_ranges)
      i += 1
      next
    end

    line = @lines[i]

    # Match type alias definitions
    if line.match?(/^\s*type\s+\w+/)
      alias_info = parse_type_alias(line)
      type_aliases << alias_info if alias_info
    end

    # Match interface definitions
    if line.match?(/^\s*interface\s+\w+/)
      interface_info, next_i = parse_interface(i)
      if interface_info
        interfaces << interface_info
        i = next_i
        next
      end
    end

    # Match class definitions
    if line.match?(/^\s*class\s+\w+/)
      class_info, next_i = parse_class(i)
      if class_info
        classes << class_info
        i = next_i
        next
      end
    end

    # Match function definitions (top-level only, not inside class)
    if line.match?(/^\s*#{VISIBILITY_PATTERN}def\s+#{IDENTIFIER_CHAR}+/)
      func_info, next_i = parse_function_with_body(i)
      if func_info
        functions << func_info
        i = next_i
        next
      end
    end

    i += 1
  end

  result = {
    type: :success,
    functions: functions,
    type_aliases: type_aliases,
    interfaces: interfaces,
    classes: classes,
  }

  # Build IR
  builder = IR::Builder.new
  @ir_program = builder.build(result, source: @source)

  result
rescue Scanner::ScanError => e
  raise ParseError.new(e.message, line: e.line, column: e.column)
end

#parse_to_ir ⇒ Object

Parse to IR directly (new API)



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# File 'lib/t_ruby/parser.rb', line 108

def parse_to_ir
  parse unless @ir_program
  @ir_program
end

#parse_type(type_string) ⇒ Object

Parse a type expression using combinator



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# File 'lib/t_ruby/parser.rb', line 114

def parse_type(type_string)
  result = @type_parser.parse(type_string)
  result[:success] ? result[:type] : nil
end