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 45

def initialize(import_object, &blk)
  @wasi = nil

  blk.call(self)
  import_object.each_pair do |k, v|
    if v.is_a?(Hash)
      import_object[k] = HashModule.new(v)
    end
  end

  @import_object = import_object #: Hash[Symbol, wasmModule]

  @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

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args) ⇒ Object 



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# File 'lib/wardite.rb', line 232

def method_missing(name, *args)
  if runtime.callable? name
    runtime.call(name, args)
  else
    super
  end
end

Instance Attribute Details

#exports ⇒ Object

: Exports



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# File 'lib/wardite.rb', line 37

def exports
  @exports
end

#import_object ⇒ Object (readonly)

: Hash[Symbol, wasmModule]



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# File 'lib/wardite.rb', line 39

def import_object
  @import_object
end

#runtime ⇒ Object

: Runtime



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# File 'lib/wardite.rb', line 31

def runtime
  @runtime
end

#sections ⇒ Object

: Array



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# File 'lib/wardite.rb', line 29

def sections
  @sections
end

#store ⇒ Object

: Store



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# File 'lib/wardite.rb', line 35

def store
  @store
end

#types ⇒ Object

: Array



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# File 'lib/wardite.rb', line 33

def types
  @types
end

#version ⇒ Object

: Integer



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# File 'lib/wardite.rb', line 27

def version
  @version
end

#wasi ⇒ Object

: ::Wardite::WasiSnapshotPreview1?



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# File 'lib/wardite.rb', line 41

def wasi
  @wasi
end

Instance Method Details

#check_data_count ⇒ Object 



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# File 'lib/wardite.rb', line 74

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 206

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 158

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 146

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 194

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 218

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 170

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 134

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 88

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 110

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 122

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 182

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 98

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