refactor: new abi

[moraleinside]

Breaking change

• Function abi.encodeParameter will return complete encoding including the dynamic prefix. Compared with the old version, the result will be the same as abi.encodeParameters with one parameter.
  Similarly, abi.decodeParameter will accept the decoding data including the dynamic prefix.
  This only affects on dynamic types. e.g. dynamic array(uint256[], bytes32[], address[], tokenId[]… etc.), string and bytes.

Old behavior: encodeParameter and decodeParameter did not take dynamic prefix into account.

• For types with <M>, e.g. int<M>/uint<M>/bytes<M>, decoding of such types will strictly follow the type length, the extra-long data will be cut off.
  Example:
  Decoding ‘fffffffffffff38dd0f10627f5529bdb2c52d4846810af0ac000000000000001’ to int8 will result in 1.

Old behavior: Throw an error.

• Function utils.isHexString
  will return false for non-string input such as integers.
  Example:
  isHexString(1) will result in false.

Old behavior: isHexString(1) returned true.

• Function abi.decodeLog will not be used to decode function data. As the name indicates, it should only decode event logs.

Old behavior: This function can also be used to decode function calls, which makes it confusing to use.

New feature

• Encoding and decoding of dynamic arrays, e.g. string[]
• Encoding and decoding of multi-dimension arrays, e.g. int256[2][][3]
• Encoding and decoding of structs
• Creating log filters
• More abi types

New function export

• abi.decodeFunctionCall
• abi.decodeFunctionOutput
• abi.encodeOffchainCall
• abi.decodeOffchainOutput
• abi.encodeConstructor
• abi.encodeLogFilter

New module export

• abi.Abi
• abi.utils

Known issue

When calling abi.encodeLogFilter, using arrays (esp. dynamic arrays) as indexed topic may cause different encoding results at the moment. You should avoid using arrays as indexed event parameter in your contract. If an array must be used, use static array.

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See test/package/abi.js for more specific usage and examples.

re #77

[coveralls]

Pull Request Test Coverage Report for Build 2877659064

• 1348 of 1480 (91.08%) changed or added relevant lines in 18 files are covered.
• 81 unchanged lines in 11 files lost coverage.
• Overall coverage increased (+0.05%) to 86.786%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/abi/coder/boolean.ts	9	10	90.0%
src/abi/coder/gid.ts	12	13	92.31%
src/abi/coder/null.ts	12	13	92.31%
src/abi/coder/number.ts	30	31	96.77%
src/abi/coder/tokenId.ts	12	13	92.31%
src/abi/coder/bytes.ts	32	34	94.12%
src/abi/coder/tuple.ts	40	42	95.24%
src/abi/index.ts	75	77	97.4%
src/abi/utils.ts	91	93	97.85%
src/accountBlock/utils.ts	29	31	93.55%

Files with Coverage Reduction	New Missed Lines	%
src/keystore/tools.ts	1	88.57%
src/wallet/index.ts	2	78.57%
src/utils/ed25519.ts	3	81.82%
src/wallet/hdKey.ts	3	79.45%
src/keystore/decrypt.ts	5	70.31%
src/wallet/address.ts	6	89.08%
src/wallet/wallet.ts	6	78.87%
src/utils/index.ts	8	86.96%
src/keystore/encrypt.ts	9	83.33%
src/keystore/validated.ts	16	76.43%

Totals
Change from base Build 2766952115:	0.05%
Covered Lines:	2202
Relevant Lines:	2423

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💛 - Coveralls