Features:

• ErgoTree types, values, IR nodes definition;
• ErgoTree IR nodes serialization;

ErgoTree IR

ErgoTree Specification

Descriptions for the operations can be found in ErgoTree Specification

Not yet implemented operations:

Predefined functions

• atLeast

Object properties and methods

SigmaProp

• isProven

Implemented operations (IR nodes):

General

• Blocks (BlockValue);
• Variable definition (ValDef, ValUse);
• Function definition (FuncValue);
• Function application(Apply);
• Tuplse field access
• 'If' conditional

Operations

• comparison: >, <, >=, <=, ==, !=;
• arithmetic: +, -, *, /, %;
• logical: &&, ||;
• | (bitwise OR);
• & (bitwise AND);
• ^ (bitwise XOR);
• | (byte-wise XOR of two collections of bytes) #296;
• unary !;
• unary -;
• ^ (logical XOR);
• unary ~ (bit inversion);

Predefined functions

• longToByteArray
• byteArrayToBigInt
• byteArrayToLong
• upcast
• allOf
• anyOf
• min
• max
• blake2b256
• sha256
• proveDlog
• proveDHTuple
• sigmaProp
• substConstants
• executeFromVar
• executeFromSelfReg
• getVar
• allZK
• anyZK
• decodePoint
• groupGenerator #332
• xorOf #356
• downcast
• avlTree
• treeLookup

Object properties and methods

GroupElement

• exp #297
• multiply #298
• getEncoded #330
• negate #331

SigmaProp

• propBytes

Box

• value
• propositionBytes
• id
• creationInfo
• getReg
• tokens
• R0 .. R9
• bytes
• bytesWithoutRef

Header

• id
• version
• parentId
• ADProofsRoot
• stateRoot
• transactionsRoot
• timestamp
• nBits
• height
• extensionRoot
• minerPk
• powOnetimePk
• powNonce
• powDistance
• votes

PreHeader

• version
• parentId
• timestamp
• nBits
• height
• minerPk
• votes

Context

• dataInputs
• INPUTS
• OUTPUTS
• HEIGHT
• SELF
• minerPubKey
• getVar
• selfBoxIndex
• headers
• preHeader
• LastBlockUtxoRootHash

AvlTree

• digest
• enabledOperations
• keyLength
• valueLengthOpt
• isInsertAllowed
• isUpdateAllowed
• isRemoveAllowed
• updateOperations
• insert
• updateDigest
• contains
• get
• getMany
• update
• remove

Collection

• size
• getOrElse
• map
• exists
• fold
• forall
• slice #300
• filter
• append #301
• apply
• flatMap
• indexOf
• zip #329
• indices #314
• patch #357
• updated #358
• updateMany #359

Option

• isDefined
• get
• getOrElse
• map #360
• filter #360