[rpc] add RPC API contract.resolve_module_function_index

[coldnight]

Related #3450.

Pull request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation content changes
• Other (please describe):

What is the current behavior?

Issue Number: #3450.

What is the new behavior?

• Add an new RPC API that could resolve function index from CompiledModule.

• Here is an example invocation in my own environment(deployed a toy mycounter contract)

  $ curl 'http://localhost:9850/' -X POST -H 'Content-Type: application/json' --data-raw '{"method":"contract.resolve_module_function_index","params":["0x43c83253e82b2667760caa005bfe4e36::MyCounter", 0],"id":56,"jsonrpc":"2.0"}'

• The result I got

  {
    "jsonrpc": "2.0",
    "result": {
      "args": [
        {
          "doc": "",
          "name": "p0",
          "type_tag": {
            "Reference": [
              false,
              "Signer"
            ]
          }
        }
      ],
      "doc": "",
      "module_name": {
        "address": "0x43c83253e82b2667760caa005bfe4e36",
        "name": "MyCounter"
      },
      "name": "incr",
      "returns": [],
      "ty_args": []
    },
    "id": 56
  }
  

Other information

[coldnight]

Hold on please, it'll cause panic if the function_index is overflow.

[coldnight]

Hold on please, it'll cause panic if the function_index is overflow.

$  curl 'http://localhost:9851/' -X POST -H 'Content-Type: application/json' --data-raw '{"method":"contract.resolve_module_function_index","params":["0x3c7430c3c2a3979a703f52d3eca3ae67::MyCounter", 4],"id":56,"jsonrpc":"2.0"}'

{
  "error": {
    "code": -32603,
    "message": "Function index 4 out of range in ModuleId { address: 0x3c7430c3c2a3979a703f52d3eca3ae67, name: Identifier(\"MyCounter\") }"
  },
  "id": 56,
  "jsonrpc": "2.0"
}

[jolestar]

@coldnight Please help to add a unit test for resolve_module_function_index

[coldnight]

@jolestar Unit tests have been added.

[codecov]

Codecov Report

Merging #3464 (17f6d55) into master (2d55f96) will increase coverage by 0.02%.
The diff coverage is 7.41%.

@@            Coverage Diff             @@
##           master    #3464      +/-   ##
==========================================
+ Coverage   31.95%   31.96%   +0.02%     
==========================================
  Files         500      500              
  Lines       46806    46833      +27     
  Branches    21306    21327      +21     
==========================================
+ Hits        14951    14966      +15     
- Misses      17693    17698       +5     
- Partials    14162    14169       +7     

Flag	Coverage Δ
unittests	31.96% <7.41%> (+0.02%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
rpc/api/src/contract_api.rs	11.12% <0.00%> (-0.65%)	⬇️
rpc/server/src/module/contract_rpc.rs	3.54% <0.00%> (-0.16%)	⬇️
abi/resolver/src/lib.rs	31.28% <11.77%> (-1.28%)	⬇️
...m/types/src/account_config/events/config_change.rs	66.67% <0.00%> (-33.33%)	⬇️
vm/vm-runtime/src/metrics.rs	29.17% <0.00%> (-4.16%)	⬇️
types/src/account_state.rs	63.34% <0.00%> (-3.33%)	⬇️
commons/service-registry/src/service_actor.rs	38.71% <0.00%> (-3.22%)	⬇️
commons/accumulator/src/tree.rs	51.24% <0.00%> (-2.95%)	⬇️
commons/service-registry/src/service_ref.rs	65.76% <0.00%> (-2.73%)	⬇️
miner/src/generate_block_event_pacemaker.rs	41.87% <0.00%> (-2.32%)	⬇️
... and 59 more

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[jolestar]

LGTM