Class: CoderCompanion::Java::JavaParser

Inherits:
LanguageParser show all
Defined in:
lib/codercompanion/java/java_parser.rb

Constant Summary collapse

JAVA_EXTENSIONS = 
['.java']

Instance Attribute Summary

Attributes inherited from LanguageParser

#excluded, #tree_walker

Instance Method Summary collapse

Methods inherited from LanguageParser

#create_project_json

Constructor Details

#initialize ⇒ JavaParser

Returns a new instance of JavaParser.



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# File 'lib/codercompanion/java/java_parser.rb', line 8

def initialize
    Treetop.load(File.join(File.dirname(__FILE__), 'java_grammar'))
    @parser = CoderCompanion::JavaParser.new
    @tree_walker = CoderCompanion::Java::JavaTreeWalker.new
end

Instance Method Details

#build_tree(root_node) ⇒ Object 



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# File 'lib/codercompanion/java/java_parser.rb', line 57

def build_tree(root_node)
    root_node.build
end

#is_valid_file(ext) ⇒ Object 



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# File 'lib/codercompanion/java/java_parser.rb', line 53

def is_valid_file(ext)
    return JAVA_EXTENSIONS.include?(ext)
end

#parse(files) ⇒ Object 



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# File 'lib/codercompanion/java/java_parser.rb', line 14

def parse(files)
    results = []
    files.each do |file|
        results << parse_file(file)
    end
    return results
end

#parse_file(file) ⇒ Object 



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# File 'lib/codercompanion/java/java_parser.rb', line 22

def parse_file(file)
    data = File.open(file).read
    tree = @parser.parse(data)
    
    if tree
        #puts tree.inspect
    end
    
    # If the AST is nil then there was an error during parsing
    # we need to report a simple error message to help the user
    # if(tree.nil?)
    #   raise Exception, "Parse error at offset: #{@@parser.index}"
    # end

    if !tree
      #puts @parser.terminal_failures
      error_string = "\nParse error"
      error_string += "\nExpected: #{(@parser.terminal_failures.collect {|f| f.expected_string}).join(", ")}"
      error_string += "\nwhile parsing file: #{file}"
      error_string += "\nat line #{@parser.failure_line}"
      error_string += "\nat column #{@parser.failure_column}"
      error_string += "\nIf your code is compilable, report a bug at:"
      error_string += "\nhttp://codercompanion.com/contact"
      raise CoderCompanion::CoderCompanionException, error_string
    end
    
    ast = self.build_tree(tree)
    CoderCompanion::j_print_inline CoderCompanion::success_format '.'
    {:type => 'source', :body => ast, :file_path => file}
end