Class: Relaton::Un::Wasm::Instance

Inherits:
Object
  • Object
show all
Defined in:
lib/relaton/un/wasm/instance.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(mod, imports = {}) ⇒ Instance

imports: { “modname” => { “fieldname” => Proc } }



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# File 'lib/relaton/un/wasm/instance.rb', line 10

def initialize(mod, imports = {})
  @mod = mod
  @types = mod.types
  @imports = imports
  @funcs = []
  @globals = []
  @table = []
  link_funcs
  init_memory
  init_globals
  init_table
  init_data
  @interpreter = Interpreter.new(self)
end

Instance Attribute Details

#funcs ⇒ Object (readonly)

Returns the value of attribute funcs.



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# File 'lib/relaton/un/wasm/instance.rb', line 7

def funcs
  @funcs
end

#globals ⇒ Object (readonly)

Returns the value of attribute globals.



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# File 'lib/relaton/un/wasm/instance.rb', line 7

def globals
  @globals
end

#memory ⇒ Object (readonly)

Returns the value of attribute memory.



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# File 'lib/relaton/un/wasm/instance.rb', line 7

def memory
  @memory
end

#table ⇒ Object (readonly)

Returns the value of attribute table.



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# File 'lib/relaton/un/wasm/instance.rb', line 7

def table
  @table
end

#types ⇒ Object (readonly)

Returns the value of attribute types.



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# File 'lib/relaton/un/wasm/instance.rb', line 7

def types
  @types
end

Instance Method Details

#export_index(name, kind) ⇒ Object

Raises:



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# File 'lib/relaton/un/wasm/instance.rb', line 34

def export_index(name, kind)
  exp = @mod.exports.find { |e| e.name == name && e.kind == kind }
  raise LinkError, "no export named #{name} of kind #{kind}" unless exp

  exp.index
end

#invoke(name, *args) ⇒ Object 



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# File 'lib/relaton/un/wasm/instance.rb', line 25

def invoke(name, *args)
  idx = export_index(name, :func)
  invoke_by_index(idx, args)
end

#invoke_by_index(func_idx, args) ⇒ Object 



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# File 'lib/relaton/un/wasm/instance.rb', line 30

def invoke_by_index(func_idx, args)
  @interpreter.invoke(func_idx, args)
end