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@ -1,3 +1,8 @@ |
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/** |
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* @packageDocumentation |
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* @module harmony-contract |
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*/ |
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// this file is mainly ported from `ethers.js`, but done some fixes
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// 1. added bytesPadRight support
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// 2. ts-lint
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@ -25,8 +30,7 @@ const NegativeOne: BN = new BN(-1); |
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const One: BN = new BN(1); |
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// const Two: BN = new BN(2);
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const Zero: BN = new BN(0); |
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const HashZero = |
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'0x0000000000000000000000000000000000000000000000000000000000000000'; |
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const HashZero = '0x0000000000000000000000000000000000000000000000000000000000000000'; |
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const MaxUint256: BN = hexToBN( |
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'0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff', |
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@ -73,10 +77,7 @@ const paramTypeBytes = new RegExp(/^bytes([0-9]*)$/); |
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const paramTypeNumber = new RegExp(/^(u?int)([0-9]*)$/); |
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const paramTypeArray = new RegExp(/^(.*)\[([0-9]*)\]$/); |
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export const defaultCoerceFunc: CoerceFunc = ( |
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type: string, |
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value: any, |
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): any => { |
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export const defaultCoerceFunc: CoerceFunc = (type: string, value: any): any => { |
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const match = type.match(paramTypeNumber); |
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if (match && parseInt(match[2], 10) <= 48) { |
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// return value.toNumber();
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@ -155,9 +156,7 @@ function parseParam(param: string, allowIndexed?: boolean): ParamType { |
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node.type = verifyType(node.type); |
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} |
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node.components = [ |
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{ type: '', name: '', parent: node, state: { allowType: true } }, |
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]; |
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node.components = [{ type: '', name: '', parent: node, state: { allowType: true } }]; |
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node = node.components[0]; |
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break; |
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@ -415,7 +414,7 @@ function parseSignatureFunction(fragment: string): FunctionFragment { |
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// We have outputs
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if (comps.length > 1) { |
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const right = comps[1].match(regexParen); |
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if (right === null || (right[1].trim() !== '' || right[3].trim() !== '')) { |
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if (right === null || right[1].trim() !== '' || right[3].trim() !== '') { |
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throw new Error('unexpected tokens'); |
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} |
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@ -439,20 +438,11 @@ function parseSignatureFunction(fragment: string): FunctionFragment { |
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} |
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// @TODO: Allow a second boolean to expose names and modifiers
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export function formatSignature( |
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fragment: EventFragment | FunctionFragment, |
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): string { |
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return ( |
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fragment.name + |
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'(' + |
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fragment.inputs.map((i) => formatParamType(i)).join(',') + |
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')' |
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); |
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export function formatSignature(fragment: EventFragment | FunctionFragment): string { |
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return fragment.name + '(' + fragment.inputs.map((i) => formatParamType(i)).join(',') + ')'; |
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} |
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export function parseSignature( |
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fragment: string, |
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): EventFragment | FunctionFragment { |
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export function parseSignature(fragment: string): EventFragment | FunctionFragment { |
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if (typeof fragment === 'string') { |
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// Make sure the "returns" is surrounded by a space and all whitespace is exactly one space
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fragment = fragment.replace(/\s/g, ' '); |
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@ -548,12 +538,7 @@ class CoderNull extends Coder { |
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class CoderNumber extends Coder { |
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readonly size: number; |
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readonly signed: boolean; |
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constructor( |
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coerceFunc: CoerceFunc, |
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size: number, |
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signed: boolean, |
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localName: string, |
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) { |
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constructor(coerceFunc: CoerceFunc, size: number, signed: boolean, localName: string) { |
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const name = (signed ? 'int' : 'uint') + size * 8; |
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super(coerceFunc, name, name, localName, false); |
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@ -597,15 +582,11 @@ class CoderNumber extends Coder { |
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decode(data: Uint8Array, offset: number): DecodedResult { |
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if (data.length < offset + 32) { |
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throwError( |
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'insufficient data for ' + this.name + ' type', |
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INVALID_ARGUMENT, |
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{ |
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arg: this.localName, |
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coderType: this.name, |
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value: hexlify(data.slice(offset, offset + 32)), |
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}, |
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); |
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throwError('insufficient data for ' + this.name + ' type', INVALID_ARGUMENT, { |
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arg: this.localName, |
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coderType: this.name, |
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value: hexlify(data.slice(offset, offset + 32)), |
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}); |
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} |
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const junkLength = 32 - this.size; |
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const dataValue = hexlify(data.slice(offset + junkLength, offset + 32)); |
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@ -711,10 +692,7 @@ class CoderFixedBytes extends Coder { |
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return { |
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consumed: 32, |
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value: this.coerceFunc( |
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this.name, |
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hexlify(data.slice(offset, offset + this.length)), |
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), |
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value: this.coerceFunc(this.name, hexlify(data.slice(offset, offset + this.length))), |
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}; |
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} |
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} |
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@ -763,11 +741,7 @@ function _encodeDynamicBytes(value: Uint8Array): Uint8Array { |
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return concat([uint256Coder.encode(new BN(value.length)), value, padding]); |
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} |
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function _decodeDynamicBytes( |
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data: Uint8Array, |
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offset: number, |
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localName: string, |
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): DecodedResult { |
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function _decodeDynamicBytes(data: Uint8Array, offset: number, localName: string): DecodedResult { |
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if (data.length < offset + 32) { |
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throwError('insufficient data for dynamicBytes length', INVALID_ARGUMENT, { |
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arg: localName, |
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@ -920,11 +894,7 @@ function pack(coders: Coder[], values: any[]): Uint8Array { |
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return data; |
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} |
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function unpack( |
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coders: Coder[], |
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data: Uint8Array, |
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offset: number, |
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): DecodedResult { |
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function unpack(coders: Coder[], data: Uint8Array, offset: number): DecodedResult { |
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const baseOffset = offset; |
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let consumed = 0; |
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const value: any = []; |
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@ -974,12 +944,7 @@ function unpack( |
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class CoderArray extends Coder { |
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readonly coder: Coder; |
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readonly length: number; |
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constructor( |
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coerceFunc: CoerceFunc, |
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coder: Coder, |
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length: number, |
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localName: string, |
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) { |
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constructor(coerceFunc: CoerceFunc, coder: Coder, length: number, localName: string) { |
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const type = coder.type + '[' + (length >= 0 ? length : '') + ']'; |
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const dynamic = length === -1 || coder.dynamic; |
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super(coerceFunc, 'array', type, localName, dynamic); |
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@ -1033,15 +998,11 @@ class CoderArray extends Coder { |
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try { |
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decodedLength = uint256Coder.decode(data, offset); |
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} catch (error) { |
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throwError( |
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'insufficient data for dynamic array length', |
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INVALID_ARGUMENT, |
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{ |
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arg: this.localName, |
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coderType: 'array', |
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value: error.value, |
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}, |
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); |
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throwError('insufficient data for dynamic array length', INVALID_ARGUMENT, { |
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arg: this.localName, |
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coderType: 'array', |
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value: error.value, |
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}); |
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} |
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try { |
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count = decodedLength.value.toNumber(); |
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@ -1168,12 +1129,7 @@ function getParamCoder(coerceFunc: CoerceFunc, param: ParamType | any): any { |
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value: param, |
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}); |
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} |
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return new CoderNumber( |
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coerceFunc, |
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size / 8, |
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matcher[1] === 'int', |
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param.name || '', |
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); |
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return new CoderNumber(coerceFunc, size / 8, matcher[1] === 'int', param.name || ''); |
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} |
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const matcher2 = param.type.match(paramTypeBytes); |
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@ -1194,20 +1150,11 @@ function getParamCoder(coerceFunc: CoerceFunc, param: ParamType | any): any { |
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param = shallowCopy(param); |
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param.type = matcher3[1]; |
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param = deepCopy(param); |
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return new CoderArray( |
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coerceFunc, |
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getParamCoder(coerceFunc, param), |
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size, |
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param.name || '', |
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); |
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return new CoderArray(coerceFunc, getParamCoder(coerceFunc, param), size, param.name || ''); |
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} |
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if (param.type.substring(0, 5) === 'tuple') { |
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return getTupleParamCoder( |
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coerceFunc, |
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param.components || [], |
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param.name || '', |
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); |
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return getTupleParamCoder(coerceFunc, param.components || [], param.name || ''); |
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} |
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if (param.type === '') { |
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@ -1307,9 +1254,7 @@ export function toUtf8String(bytes: Arrayish, ignoreErrors?: boolean): string { |
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} else { |
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if (!ignoreErrors) { |
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if ((c & 0xc0) === 0x80) { |
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throw new Error( |
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'invalid utf8 byte sequence; unexpected continuation byte', |
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); |
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throw new Error('invalid utf8 byte sequence; unexpected continuation byte'); |
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} |
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throw new Error('invalid utf8 byte sequence; invalid prefix'); |
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} |
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@ -1350,9 +1295,7 @@ export function toUtf8String(bytes: Arrayish, ignoreErrors?: boolean): string { |
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if (res === null) { |
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if (!ignoreErrors) { |
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throw new Error( |
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'invalid utf8 byte sequence; invalid continuation byte', |
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); |
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throw new Error('invalid utf8 byte sequence; invalid continuation byte'); |
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} |
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continue; |
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} |
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@ -1387,10 +1330,7 @@ export function toUtf8String(bytes: Arrayish, ignoreErrors?: boolean): string { |
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} |
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res -= 0x10000; |
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result += String.fromCharCode( |
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((res >> 10) & 0x3ff) + 0xd800, |
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(res & 0x3ff) + 0xdc00, |
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); |
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result += String.fromCharCode(((res >> 10) & 0x3ff) + 0xd800, (res & 0x3ff) + 0xdc00); |
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} |
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return result; |
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@ -1537,9 +1477,7 @@ export class AbiCoder { |
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coders.push(getParamCoder(this.coerceFunc, typeObject)); |
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}, this); |
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const encodedArray = new CoderTuple(this.coerceFunc, coders, '_').encode( |
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values, |
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); |
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const encodedArray = new CoderTuple(this.coerceFunc, coders, '_').encode(values); |
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return hexlify(encodedArray); |
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} |
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Wen Zhang
5 years ago
committed by
Ganesha Upadhyaya