Class: Nydp::InvokeFunctionInstruction

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

Instance Method Summary collapse

Constructor Details

#initialize(arg_count, source_expression) ⇒ InvokeFunctionInstruction

Returns a new instance of InvokeFunctionInstruction.



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# File 'lib/nydp/function_invocation.rb', line 6

def initialize arg_count, source_expression
  @source_expression = source_expression
  @arg_count = arg_count
end

Instance Method Details

#execute(vm) ⇒ Object 



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# File 'lib/nydp/function_invocation.rb', line 11

def execute vm
  args = vm.pop_args @arg_count
  args.car.invoke vm, args.cdr
rescue Nydp::Error => ne
  raise ne
rescue InvocationFailed => i_f
  raise i_f
rescue Exception => e
  msg  =  "failed to execute invocation #{args.inspect}"
  msg +=  "\nsource was #{source.inspect}"
  msg +=  "\nfunction name was #{source.car.inspect}"
  i_f = InvocationFailed.new "#{msg}\n#{vm.error}#{e.message}"
  i_f.set_backtrace e.backtrace
  raise i_f
end

#inspect ⇒ Object 



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# File 'lib/nydp/function_invocation.rb', line 27

def inspect ; source.inspect     ; end

#source ⇒ Object 



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# File 'lib/nydp/function_invocation.rb', line 28

def source  ; @source_expression ; end

#to_s ⇒ Object 



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# File 'lib/nydp/function_invocation.rb', line 29

def to_s    ; source.to_s        ; end