Class: BTC::ScriptError

Inherits:
Object
  • Object
show all
Includes:
ScriptErrors
Defined in:
lib/btcruby/script/script_error.rb

Constant Summary

Constants included from ScriptErrors

BTC::ScriptErrors::SCRIPT_ERR_BAD_OPCODE, BTC::ScriptErrors::SCRIPT_ERR_CHECKMULTISIGVERIFY, BTC::ScriptErrors::SCRIPT_ERR_CHECKSIGVERIFY, BTC::ScriptErrors::SCRIPT_ERR_CLEANSTACK, BTC::ScriptErrors::SCRIPT_ERR_DISABLED_OPCODE, BTC::ScriptErrors::SCRIPT_ERR_DISCOURAGE_UPGRADABLE_NOPS, BTC::ScriptErrors::SCRIPT_ERR_EQUALVERIFY, BTC::ScriptErrors::SCRIPT_ERR_EVAL_FALSE, BTC::ScriptErrors::SCRIPT_ERR_INVALID_ALTSTACK_OPERATION, BTC::ScriptErrors::SCRIPT_ERR_INVALID_STACK_OPERATION, BTC::ScriptErrors::SCRIPT_ERR_MINIMALDATA, BTC::ScriptErrors::SCRIPT_ERR_NEGATIVE_LOCKTIME, BTC::ScriptErrors::SCRIPT_ERR_NUMEQUALVERIFY, BTC::ScriptErrors::SCRIPT_ERR_OK, BTC::ScriptErrors::SCRIPT_ERR_OP_COUNT, BTC::ScriptErrors::SCRIPT_ERR_OP_RETURN, BTC::ScriptErrors::SCRIPT_ERR_PUBKEYTYPE, BTC::ScriptErrors::SCRIPT_ERR_PUBKEY_COUNT, BTC::ScriptErrors::SCRIPT_ERR_PUSH_SIZE, BTC::ScriptErrors::SCRIPT_ERR_SCRIPT_SIZE, BTC::ScriptErrors::SCRIPT_ERR_SIG_COUNT, BTC::ScriptErrors::SCRIPT_ERR_SIG_DER, BTC::ScriptErrors::SCRIPT_ERR_SIG_HASHTYPE, BTC::ScriptErrors::SCRIPT_ERR_SIG_HIGH_S, BTC::ScriptErrors::SCRIPT_ERR_SIG_NULLDUMMY, BTC::ScriptErrors::SCRIPT_ERR_SIG_PUSHONLY, BTC::ScriptErrors::SCRIPT_ERR_STACK_SIZE, BTC::ScriptErrors::SCRIPT_ERR_UNBALANCED_CONDITIONAL, BTC::ScriptErrors::SCRIPT_ERR_UNKNOWN_ERROR, BTC::ScriptErrors::SCRIPT_ERR_UNSATISFIED_LOCKTIME, BTC::ScriptErrors::SCRIPT_ERR_VERIFY

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(code, message = nil) ⇒ ScriptError

Returns a new instance of ScriptError.



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# File 'lib/btcruby/script/script_error.rb', line 56

def initialize(code, message = nil)
  @code = code
  @message = message
end

Instance Attribute Details

#code ⇒ Object (readonly)

Returns the value of attribute code.



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# File 'lib/btcruby/script/script_error.rb', line 52

def code
  @code
end

#description ⇒ Object (readonly)

Returns the value of attribute description.



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# File 'lib/btcruby/script/script_error.rb', line 54

def description
  @description
end

#message ⇒ Object (readonly)

Returns the value of attribute message.



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# File 'lib/btcruby/script/script_error.rb', line 53

def message
  @message
end

Instance Method Details

#builtin_description ⇒ Object 



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# File 'lib/btcruby/script/script_error.rb', line 73

def builtin_description
  case @code
  when SCRIPT_ERR_OK
      return "No error"
  when SCRIPT_ERR_EVAL_FALSE
      return "Script evaluated without error but finished with a false/empty top stack element"
  when SCRIPT_ERR_VERIFY
      return "Script failed an OP_VERIFY operation"
  when SCRIPT_ERR_EQUALVERIFY
      return "Script failed an OP_EQUALVERIFY operation"
  when SCRIPT_ERR_CHECKMULTISIGVERIFY
      return "Script failed an OP_CHECKMULTISIGVERIFY operation"
  when SCRIPT_ERR_CHECKSIGVERIFY
      return "Script failed an OP_CHECKSIGVERIFY operation"
  when SCRIPT_ERR_NUMEQUALVERIFY
      return "Script failed an OP_NUMEQUALVERIFY operation"
  when SCRIPT_ERR_SCRIPT_SIZE
      return "Script is too big"
  when SCRIPT_ERR_PUSH_SIZE
      return "Push value size limit exceeded"
  when SCRIPT_ERR_OP_COUNT
      return "Operation limit exceeded"
  when SCRIPT_ERR_STACK_SIZE
      return "Stack size limit exceeded"
  when SCRIPT_ERR_SIG_COUNT
      return "Signature count negative or greater than pubkey count"
  when SCRIPT_ERR_PUBKEY_COUNT
      return "Pubkey count negative or limit exceeded"
  when SCRIPT_ERR_BAD_OPCODE
      return "Opcode missing or not understood"
  when SCRIPT_ERR_DISABLED_OPCODE
      return "Attempted to use a disabled opcode"
  when SCRIPT_ERR_INVALID_STACK_OPERATION
      return "Operation not valid with the current stack size"
  when SCRIPT_ERR_INVALID_ALTSTACK_OPERATION
      return "Operation not valid with the current altstack size"
  when SCRIPT_ERR_OP_RETURN
      return "OP_RETURN was encountered"
  when SCRIPT_ERR_UNBALANCED_CONDITIONAL
      return "Invalid OP_IF construction"
  when SCRIPT_ERR_NEGATIVE_LOCKTIME
      return "Negative locktime"
  when SCRIPT_ERR_UNSATISFIED_LOCKTIME
      return "Locktime requirement not satisfied"
  when SCRIPT_ERR_SIG_HASHTYPE
      return "Signature hash type missing or not understood"
  when SCRIPT_ERR_SIG_DER
      return "Non-canonical DER signature"
  when SCRIPT_ERR_MINIMALDATA
      return "Data push larger than necessary"
  when SCRIPT_ERR_SIG_PUSHONLY
      return "Only non-push operators allowed in signatures"
  when SCRIPT_ERR_SIG_HIGH_S
      return "Non-canonical signature: S value is unnecessarily high"
  when SCRIPT_ERR_SIG_NULLDUMMY
      return "Dummy CHECKMULTISIG argument must be zero"
  when SCRIPT_ERR_DISCOURAGE_UPGRADABLE_NOPS
      return "NOPx reserved for soft-fork upgrades"
  when SCRIPT_ERR_PUBKEYTYPE
      return "Public key is neither compressed or uncompressed"
  when SCRIPT_ERR_UNKNOWN_ERROR
  end
  "unknown error"
end

#code_name ⇒ Object 



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# File 'lib/btcruby/script/script_error.rb', line 61

def code_name
  self.class.constants.find{|n| self.class.const_get(n) == @code }
end

#inspect ⇒ Object 



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# File 'lib/btcruby/script/script_error.rb', line 65

def inspect
  "#<#{self.class}:#{code} #{description} (#{code_name})>"
end