caicloud / nirvana / 376

46%

push

travis-ci

feat(builder): validate operators at startup time (#115)

Automatic merge from submit-queue.

feat(builder): validate operators at startup time

**What this PR does / why we need it**:
For an operator chain:
```
in -> operators[0].In()
operators[0].Out() -> operators[1].In()
...
operators[N].Out() -> out
```
Parameter types and result types are checked at startup time now.

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #73 

**Special notes for your reviewer**:
/assign @yejiayu 
/assign @Jimexist 
/area framwork
/kind enhancement
/priority P1

**Release note**:

```release-note
Check parameters and results of operators at startup time
```

37 of 37 new or added lines in 3 files covered. (100.0%)

2800 of 5153 relevant lines covered (54.34%)

45.64 hits per line