Class: Wardite::Instance

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(import_object, &blk) ⇒ Instance

Returns a new instance of Instance.



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# File 'lib/wardite.rb', line 44

def initialize(import_object, &blk)
  blk.call(self)
  @import_object = import_object

  @store = Store.new(self)
  @exports = Exports.new(self.export_section, store)
  @runtime = Runtime.new(self)

  @types = []
  type_section = self.type_section
  if type_section
    type_section.defined_types.each_with_index do |calltype, idx|
      rettype = type_section.defined_results[idx]
      @types << Type.new(calltype, rettype)
    end
  end

  check_data_count
end

Instance Attribute Details

#exports ⇒ Object

: Exports



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# File 'lib/wardite.rb', line 38

def exports
  @exports
end

#import_object ⇒ Object (readonly)

: Hash[Symbol, Hash[Symbol, wasmCallable]]



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# File 'lib/wardite.rb', line 40

def import_object
  @import_object
end

#runtime ⇒ Object

: Runtime



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# File 'lib/wardite.rb', line 32

def runtime
  @runtime
end

#sections ⇒ Object

: Array



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# File 'lib/wardite.rb', line 30

def sections
  @sections
end

#store ⇒ Object

: Store



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# File 'lib/wardite.rb', line 36

def store
  @store
end

#types ⇒ Object

: Array



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# File 'lib/wardite.rb', line 34

def types
  @types
end

#version ⇒ Object

: Integer



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# File 'lib/wardite.rb', line 28

def version
  @version
end

Instance Method Details

#check_data_count ⇒ Object 



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# File 'lib/wardite.rb', line 65

def check_data_count
  data_count = self.data_count_section&.count
  if data_count
    actual_count = self.data_section&.segments&.size
    if !actual_count
      raise LoadError, "invalid data segment count"
    end
    if (data_count != actual_count)
      raise LoadError, "invalid data segment count"
    end
  end
end

#code_section ⇒ Object 



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# File 'lib/wardite.rb', line 197

def code_section
  sec = @sections.find{|s| s.code == Const::SectionCode }
  if !sec
    return nil
  end
  if !sec.is_a?(CodeSection)
    raise(GenericError, "instance doesn't have required section")
  end
  sec
end

#data_count_section ⇒ Object 



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# File 'lib/wardite.rb', line 149

def data_count_section
  sec = @sections.find{|s| s.code == Const::SectionDataCount }
  if !sec
    return nil
  end
  if !sec.is_a?(DataCountSection)
    raise(GenericError, "[BUG] found invalid data section")
  end
  sec
end

#data_section ⇒ Object 



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# File 'lib/wardite.rb', line 137

def data_section
  sec = @sections.find{|s| s.code == Const::SectionData }
  if !sec
    return nil
  end
  if !sec.is_a?(DataSection)
    raise(GenericError, "[BUG] found invalid data section")
  end
  sec
end

#elem_section ⇒ Object 



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# File 'lib/wardite.rb', line 185

def elem_section
  sec = @sections.find{|s| s.code == Const::SectionElement }
  if !sec
    return nil
  end
  if !sec.is_a?(ElemSection)
    raise(GenericError, "instance doesn't have required section")
  end
  sec
end

#export_section ⇒ Object 



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# File 'lib/wardite.rb', line 209

def export_section
  sec = @sections.find{|s| s.code == Const::SectionExport }
  if !sec
    return ExportSection.new
  end
  if !sec.is_a?(ExportSection)
    raise(GenericError, "instance doesn't have required section")
  end
  sec
end

#function_section ⇒ Object 



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# File 'lib/wardite.rb', line 161

def function_section
  sec = @sections.find{|s| s.code == Const::SectionFunction }
  if !sec
    return nil
  end
  if !sec.is_a?(FunctionSection)
    raise(GenericError, "instance doesn't have required section")
  end
  sec
end

#global_section ⇒ Object 



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# File 'lib/wardite.rb', line 125

def global_section
  sec = @sections.find{|s| s.code == Const::SectionGlobal }
  if !sec
    return nil
  end
  if !sec.is_a?(GlobalSection)
    raise(GenericError, "instance doesn't have required section")
  end
  sec
end

#import_section ⇒ Object 



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# File 'lib/wardite.rb', line 79

def import_section
  sec = @sections.find{|s| s.code == Const::SectionImport }
  if !sec.is_a?(ImportSection)
    # returns dummy empty section
    return ImportSection.new
  end
  sec
end

#memory_section ⇒ Object 



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# File 'lib/wardite.rb', line 101

def memory_section
  sec = @sections.find{|s| s.code == Const::SectionMemory }
  if !sec
    return nil
  end
  if !sec.is_a?(MemorySection)
    raise(GenericError, "[BUG] found invalid memory section")
  end
  sec
end

#start_section ⇒ Object 



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# File 'lib/wardite.rb', line 113

def start_section
  sec = @sections.find{|s| s.code == Const::SectionStart }
  if !sec
    return nil
  end
  if !sec.is_a?(StartSection)
    raise(GenericError, "[BUG] found invalid start section")
  end
  sec
end

#table_section ⇒ Object 



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# File 'lib/wardite.rb', line 173

def table_section
  sec = @sections.find{|s| s.code == Const::SectionTable }
  if !sec
    return nil
  end
  if !sec.is_a?(TableSection)
    raise(GenericError, "instance doesn't have required section")
  end
  sec
end

#type_section ⇒ Object 



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# File 'lib/wardite.rb', line 89

def type_section
  sec = @sections.find{|s| s.code == Wardite::Const::SectionType }
  if !sec
    return nil
  end
  if !sec.is_a?(TypeSection)
    raise(GenericError, "instance doesn't have required section")
  end
  sec
end