139 lines
3.1 KiB
Plaintext
139 lines
3.1 KiB
Plaintext
# Class: RevertTraceSubprovider
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This class implements the [web3-provider-engine](https://github.com/MetaMask/provider-engine) subprovider interface.
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It is used to report call stack traces whenever a revert occurs.
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### Hierarchy
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* `TraceCollectionSubprovider`
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* **RevertTraceSubprovider**
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### Constructors
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## constructer
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\+ **new RevertTraceSubprovider**(`artifactAdapter`: `AbstractArtifactAdapter`, `defaultFromAddress`: string, `isVerbose`: boolean): *[RevertTraceSubprovider](#class-reverttracesubprovider)*
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*Overrides void*
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*Defined in [revert_trace_subprovider.ts:27](https://github.com/0xProject/0x-monorepo/blob/6474a4e08/packages/sol-trace/src/revert_trace_subprovider.ts#L27)*
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Instantiates a RevertTraceSubprovider instance
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**Parameters:**
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Name | Type | Default | Description |
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------ | ------ | ------ | ------ |
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`artifactAdapter` | `AbstractArtifactAdapter` | - | Adapter for used artifacts format (0x, truffle, giveth, etc.) |
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`defaultFromAddress` | string | - | default from address to use when sending transactions |
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`isVerbose` | boolean | true | If true, we will log any unknown transactions. Otherwise we will ignore them |
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**Returns:** *[RevertTraceSubprovider](#class-reverttracesubprovider)*
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### Methods
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## emitPayloadAsync
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▸ **emitPayloadAsync**(`payload`: `Partial<JSONRPCRequestPayloadWithMethod>`): *`Promise<JSONRPCResponsePayload>`*
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Emits a JSON RPC payload that will then be handled by the ProviderEngine instance
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this subprovider is a part of. The payload will cascade down the subprovider middleware
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stack until finding the responsible entity for handling the request.
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**Parameters:**
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Name | Type | Description |
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------ | ------ | ------ |
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`payload` | `Partial<JSONRPCRequestPayloadWithMethod>` | JSON RPC payload |
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**Returns:** *`Promise<JSONRPCResponsePayload>`*
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JSON RPC response payload
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___
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## handleRequest
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▸ **handleRequest**(`payload`: `JSONRPCRequestPayload`, `next`: `NextCallback`, `_end`: `ErrorCallback`): *`Promise<void>`*
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*Overrides void*
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This method conforms to the web3-provider-engine interface.
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It is called internally by the ProviderEngine when it is this subproviders
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turn to handle a JSON RPC request.
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**Parameters:**
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Name | Type | Description |
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------ | ------ | ------ |
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`payload` | `JSONRPCRequestPayload` | JSON RPC payload |
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`next` | `NextCallback` | Callback to call if this subprovider decides not to handle the request |
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`_end` | `ErrorCallback` | Callback to call if subprovider handled the request and wants to pass back the request. |
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**Returns:** *`Promise<void>`*
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___
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## setEngine
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▸ **setEngine**(`engine`: `Web3ProviderEngine`): *void*
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*Overrides void*
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Set's the subprovider's engine to the ProviderEngine it is added to.
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This is only called within the ProviderEngine source code, do not call
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directly.
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**Parameters:**
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Name | Type | Description |
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------ | ------ | ------ |
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`engine` | `Web3ProviderEngine` | The ProviderEngine this subprovider is added to |
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**Returns:** *void*
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___
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## start
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▸ **start**(): *void*
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Starts trace collection
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**Returns:** *void*
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___
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## stop
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▸ **stop**(): *void*
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Stops trace collection
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**Returns:** *void*
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<hr />
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