Class: EventDecoder
- Inherits:
-
Object
- Object
- EventDecoder
- Includes:
- AbiCoderRb
- Defined in:
- lib/periphery/event_decoder.rb
Constant Summary
Constants included from AbiCoderRb
AbiCoderRb::BYTE_EMPTY, AbiCoderRb::BYTE_ONE, AbiCoderRb::BYTE_ZERO, AbiCoderRb::INT_MAX, AbiCoderRb::INT_MIN, AbiCoderRb::UINT_MAX, AbiCoderRb::UINT_MIN, AbiCoderRb::VERSION
Instance Attribute Summary collapse
-
#data_fields ⇒ Object
readonly
Returns the value of attribute data_fields.
-
#data_inputs ⇒ Object
readonly
Returns the value of attribute data_inputs.
-
#data_type_str ⇒ Object
readonly
Returns the value of attribute data_type_str.
-
#event_abi ⇒ Object
readonly
Returns the value of attribute event_abi.
-
#indexed_topic_fields ⇒ Object
readonly
Returns the value of attribute indexed_topic_fields.
-
#indexed_topic_inputs ⇒ Object
readonly
Returns the value of attribute indexed_topic_inputs.
Attributes included from AbiCoderRb
#after_decoding_action, #before_encoding_action
Instance Method Summary collapse
- #data_fields_flatten(sep: ".") ⇒ Object
- #decode_data(data, flatten: true, sep: ".", with_names: false) ⇒ Object
- #decode_topics(topics, with_names: false) ⇒ Object
-
#initialize(event_abi) ⇒ EventDecoder
constructor
flatten_sep: separator for flattening event name if it is nested.
Methods included from AbiCoderRb
#abi_to_int_signed, #after_decoding, #before_encoding, #bin_to_hex, #ceil32, #decode, #decode_array, #decode_fixed_array, #decode_primitive_type, #decode_tuple, #encode, #encode_address, #encode_array, #encode_bool, #encode_bytes, #encode_fixed_array, #encode_int, #encode_primitive_type, #encode_string, #encode_tuple, #encode_uint, #encode_uint256, #hex?, #hex_to_bin, #int_to_abi_signed, #int_to_abi_signed_256bit, #lpad, #lpad_hex, #lpad_int, #rpad
Constructor Details
#initialize(event_abi) ⇒ EventDecoder
flatten_sep: separator for flattening event name if it is nested
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# File 'lib/periphery/event_decoder.rb', line 14 def initialize(event_abi) @event_abi = event_abi @indexed_topic_inputs, @data_inputs = event_abi["inputs"].partition { |input| input["indexed"] } # indexed_topic_inputs: @indexed_topic_fields = fields_of(@indexed_topic_inputs) # data_inputs: @data_fields = fields_of(@data_inputs) @data_type_str = fields_type_str(@data_fields) # add after_decoding action after_decoding lambda { |type, value| if type == "address" "0x#{value}" elsif type.start_with?("bytes") "0x#{bin_to_hex(value)}" else value end } end |
Instance Attribute Details
#data_fields ⇒ Object (readonly)
Returns the value of attribute data_fields.
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# File 'lib/periphery/event_decoder.rb', line 7 def data_fields @data_fields end |
#data_inputs ⇒ Object (readonly)
Returns the value of attribute data_inputs.
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# File 'lib/periphery/event_decoder.rb', line 7 def data_inputs @data_inputs end |
#data_type_str ⇒ Object (readonly)
Returns the value of attribute data_type_str.
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# File 'lib/periphery/event_decoder.rb', line 7 def data_type_str @data_type_str end |
#event_abi ⇒ Object (readonly)
Returns the value of attribute event_abi.
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# File 'lib/periphery/event_decoder.rb', line 7 def event_abi @event_abi end |
#indexed_topic_fields ⇒ Object (readonly)
Returns the value of attribute indexed_topic_fields.
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# File 'lib/periphery/event_decoder.rb', line 7 def indexed_topic_fields @indexed_topic_fields end |
#indexed_topic_inputs ⇒ Object (readonly)
Returns the value of attribute indexed_topic_inputs.
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# File 'lib/periphery/event_decoder.rb', line 7 def indexed_topic_inputs @indexed_topic_inputs end |
Instance Method Details
#data_fields_flatten(sep: ".") ⇒ Object
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# File 'lib/periphery/event_decoder.rb', line 37 def data_fields_flatten(sep: ".") flat_fields(@data_fields, sep: sep) end |
#decode_data(data, flatten: true, sep: ".", with_names: false) ⇒ Object
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# File 'lib/periphery/event_decoder.rb', line 60 def decode_data(data, flatten: true, sep: ".", with_names: false) return with_names ? {} : [] if @data_type_str == "()" data_values = decode(@data_type_str, hex_to_bin(data)) case flatten when true if with_names combine(data_field_names(flatten: true, sep: sep), data_values.flatten) else data_values.flatten end when false if with_names combine(data_field_names, data_values) else data_values end end end |
#decode_topics(topics, with_names: false) ⇒ Object
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# File 'lib/periphery/event_decoder.rb', line 41 def decode_topics(topics, with_names: false) topics = topics[1..] if topics.count == @indexed_topic_inputs.count + 1 && @event_abi["anonymous"] == false raise "topics count not match" if topics.count != @indexed_topic_inputs.count indexed_topic_types = @indexed_topic_inputs.map { |input| input["type"] } values = topics.each_with_index.map do |topic, i| indexed_topic_type = indexed_topic_types[i] decode(indexed_topic_type, hex_to_bin(topic)) end if with_names combine(@indexed_topic_inputs.map { |input| input["name"].underscore }, values) else values end end |