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authorGreg Hysen <greg.hysen@gmail.com>2018-11-07 09:12:13 +0800
committerGreg Hysen <greg.hysen@gmail.com>2018-11-29 08:38:10 +0800
commit7196046e2f38aba4709f61d1a88eb562d6c0a38a (patch)
tree7ef416cea07111c9a156764bf1d28d8b9d7f1e9a /packages/order-utils
parent96bcc7e33281a3a7831e92dad65de5303ac39523 (diff)
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Prints full ABI encoding for subset of types, with off by factor of 2 for offsets
Diffstat (limited to 'packages/order-utils')
-rw-r--r--packages/order-utils/test/abi_encoder_test.ts69
1 files changed, 59 insertions, 10 deletions
diff --git a/packages/order-utils/test/abi_encoder_test.ts b/packages/order-utils/test/abi_encoder_test.ts
index 7e12dfee6..e1d0e8a91 100644
--- a/packages/order-utils/test/abi_encoder_test.ts
+++ b/packages/order-utils/test/abi_encoder_test.ts
@@ -153,12 +153,13 @@ namespace AbiEncoder {
class Memblock {
private dataType: DataType;
- private location: { calldataSection: CalldataSection; offset: BigNumber };
+ private location: { calldataSection: CalldataSection; sectionOffset: BigNumber; offset: BigNumber };
constructor(dataType: DataType) {
this.dataType = dataType;
this.location = {
calldataSection: CalldataSection.NONE,
+ sectionOffset: new BigNumber(0),
offset: new BigNumber(0),
};
}
@@ -167,14 +168,27 @@ namespace AbiEncoder {
return new BigNumber(ethUtil.toBuffer(this.dataType.getHexValue()).byteLength);
}
- public assignLocation(calldataSection: CalldataSection, offset: BigNumber) {
+ public assignLocation(calldataSection: CalldataSection, sectionOffset: BigNumber, offset: BigNumber) {
this.location.calldataSection = calldataSection;
+ this.location.sectionOffset = sectionOffset;
this.location.offset = offset;
}
public get(): string {
return ethUtil.stripHexPrefix(this.dataType.getHexValue());
}
+
+ public getOffset(): BigNumber {
+ return this.location.offset;
+ }
+
+ public getAbsoluteOffset(): BigNumber {
+ return this.location.sectionOffset.plus(this.location.offset);
+ }
+
+ public getSection(): CalldataSection {
+ return this.location.calldataSection;
+ }
}
interface BindList {
@@ -204,19 +218,19 @@ namespace AbiEncoder {
public bind(dataType: DataType, section: CalldataSection = CalldataSection.DATA) {
if (dataType.getId() in this.bindList) {
- throw `Rebind`;
+ throw `Rebind on ${dataType.getId()}`;
}
const memblock = new Memblock(dataType);
switch (section) {
case CalldataSection.PARAMS:
this.params.push(memblock);
- memblock.assignLocation(section, this.currentParamOffset);
+ memblock.assignLocation(section, new BigNumber(0), this.currentParamOffset);
this.currentParamOffset = this.currentParamOffset.plus(memblock.getSize());
break;
case CalldataSection.DATA:
this.data.push(memblock);
- memblock.assignLocation(section, this.currentDataOffset);
+ memblock.assignLocation(section, this.dataOffset, this.currentDataOffset);
this.currentDataOffset = this.currentDataOffset.plus(memblock.getSize());
break;
@@ -225,6 +239,7 @@ namespace AbiEncoder {
}
this.bindList[dataType.getId()] = memblock;
+ dataType.rbind(memblock);
}
public getHexValue(): string {
@@ -243,12 +258,14 @@ namespace AbiEncoder {
export abstract class DataType {
private dataItem: DataItem;
private hexValue: string;
- private memblock: Memblock | undefined;
+ protected memblock: Memblock | undefined;
+ protected children: DataType[];
constructor(dataItem: DataItem) {
this.dataItem = dataItem;
this.hexValue = '0x';
this.memblock = undefined;
+ this.children = [];
}
protected assignHexValue(hexValue: string) {
@@ -268,13 +285,28 @@ namespace AbiEncoder {
}
public bind(calldata: Calldata) {
- if (this.memblock !== undefined) return; // already binded
+ if (this.memblock === undefined) {
+ calldata.bind(this);
+ }
+ _.each(this.children, (child: DataType) => {
+ child.bind(calldata);
+ });
}
public getId(): string {
return this.dataItem.name;
}
+ public getOffset(): BigNumber {
+ if (this.memblock === undefined) return new BigNumber(0);
+ return this.memblock.getOffset();
+ }
+
+ public getAbsoluteOffset(): BigNumber {
+ if (this.memblock === undefined) return new BigNumber(0);
+ return this.memblock.getAbsoluteOffset();
+ }
+
public abstract assignValue(value: any): void;
public abstract getSignature(): string;
public abstract encodeToCalldata(calldata: Calldata): void;
@@ -401,8 +433,6 @@ namespace AbiEncoder {
}
public assignValue(value: BigNumber) {
- console.log(JSON.stringify(value));
- console.log(JSON.stringify(this.getMaxValue()));
if (value.greaterThan(this.getMaxValue())) {
throw `tried to assign value of ${value}, which exceeds max value of ${this.getMaxValue()}`;
} else if (value.lessThan(0)) {
@@ -589,6 +619,7 @@ namespace AbiEncoder {
const dataItem = { name: `ptr<${destDataItem.name}>`, type: `ptr<${destDataItem.type}>` } as DataItem;
super(dataItem);
this.destDataType = destDataType;
+ this.children.push(destDataType);
}
/*
@@ -601,7 +632,23 @@ namespace AbiEncoder {
}
public getHexValue(): string {
- return this.destDataType.getHexValue();
+ let offset = new BigNumber(0);
+ if (this.memblock !== undefined) {
+ switch (this.memblock.getSection()) {
+ case CalldataSection.PARAMS:
+ offset = this.destDataType.getAbsoluteOffset();
+ break;
+ case CalldataSection.DATA:
+ offset = this.destDataType.getOffset();
+ break;
+ }
+ }
+
+ const hexBase = 16;
+ const evmWordWidth = 32;
+ const valueBuf = ethUtil.setLengthLeft(ethUtil.toBuffer(`0x${offset.toString(hexBase)}`), evmWordWidth);
+ const encodedValue = ethUtil.bufferToHex(valueBuf);
+ return encodedValue;
}
public getSignature(): string {
@@ -693,6 +740,8 @@ namespace AbiEncoder {
param.bind(calldata);
});
+ console.log(calldata);
+
return calldata.getHexValue();
//return calldata.getRaw();