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https://github.com/cerc-io/watcher-ts
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c9bf002675
* Implement test for getStorageValue with geth server. * Wait for transaction to complete in tests. * Implement tests with ipld-eth-client using graphql endpoint. Co-authored-by: nikugogoi <95nikass@gmail.com>
97 lines
2.6 KiB
Markdown
97 lines
2.6 KiB
Markdown
# solidity-mapper
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Get value of state variable from storage for a solidity contract.
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## Pre-requisites
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* NodeJS and NPM
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https://nodejs.org/en/ or use https://github.com/nvm-sh/nvm
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## Instructions
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* Create environment variable file
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```bash
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$ cp .env.example .env
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```
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* Run the tests using the following command
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```bash
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$ yarn test
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# For testing on private network using RPC getStorageAt.
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# Set ETH_RPC_URL in .env
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$ yarn test:geth-rpc
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# For testing on private network using ipld-eth-client getStorageAt.
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# Set GQL_ENDPOINT in .env
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$ yarn test:ipld-gql
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```
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## Different Types
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* [ ] Value Types
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* [x] Booleans
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* [x] Integers
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* [ ] Fixed Point Numbers
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* [x] Address
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* [x] Contract Types
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* [x] Fixed-size byte arrays
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* [x] Enums
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* [ ] Function Types
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* [ ] Reference Types
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* [x] Arrays
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* [x] Get all elements in array
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* [x] Get element in array by index
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* [x] Fixed size arrays
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* [x] Integer Type
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* [x] Boolean Type
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* [x] Address Type
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* [x] Fixed-size byte arrays
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* [x] Enum type
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* [x] Dynamically-sized byte array
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* [x] Struct Type
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* [x] Mapping Type
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* [x] Dynamically-sized arrays
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* [x] Integer Type
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* [x] Boolean Type
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* [x] Address Type
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* [x] Fixed-size byte arrays
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* [x] Enum Type
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* [x] Dynamically-sized byte array
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* [x] Struct Type
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* [x] Mapping Type
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* [x] Nested Arrays
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* [x] Fixed size arrays
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* [x] Dynamically-sized arrays
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* [x] Dynamically-sized byte array
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* [x] Bytes
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* [x] String
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* [x] Structs
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* [x] Get struct value with all members
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* [x] Value Types
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* [x] Get value of a single member in struct
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* [x] Reference Types
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* [x] Struct type members (nested)
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* [x] Fixed size Array members
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* [x] Dynamically sized Array members
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* [x] Bytes and string type members
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* [x] Mapping type members
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* [ ] Mapping Types
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* [x] Value Type keys
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* [ ] Fixed-size byte array keys
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* [x] Dynamically-sized byte array keys
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* [x] Reference Type Mapping values
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* [x] Struct type values
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* [x] Array type values
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* [x] Dynamically sized Bytes and string type values
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* [x] Nested Mapping
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## Observations
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* The storage layouts are formed according to the rules in https://docs.soliditylang.org/en/latest/internals/layout_in_storage.html#layout-of-state-variables-in-storage
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* Structs can occupy multiple slots depending on the size required by its members.
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* Fixed arrays can occupy multiple slots according to the size of the array and the type of array.
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