Closed
Description
Example Environment
- typescript@1.9.0-dev.20160207
- rxjs@5.0.0-beta.2
Abstraction
I found the case that the compile time of tsc increases to ~15x to resolve a complex function signature definition when I update rxjs to 5.0.0-beta.2 from 5.0.0-beta.1 (karen-irc/karen#574).
But after this commit, the compile time was recovered to the previous one.
| beta.1 | beta.2 | beta.2 + explicit type annotations | |
|---|---|---|---|
| Files: | 111 | 124 | 124 |
| Lines: | 28560 | 29011 | 29012 |
| Nodes: | 119182 | 125219 | 125258 |
| Identifiers: | 44304 | 46931 | 46945 |
| Symbols: | 2960494 | 5126214 | 3375603 |
| Types: | 66178 | 1069572 | 41087 |
| Memory used: | 165777K | 1264781K | 118627K |
| I/O read: | 0.03s | 0.04s | 0.04s |
| I/O write: | 0.32s | 0.31s | 0.22s |
| Parse time: | 0.48s | 0.73s | 0.64s |
| Bind time: | 0.28s | 0.41s | 0.31s |
| Check time: | 1.83s | 31.48s | 1.67s |
| Emit time: | 0.52s | 1.53s | 0.43s |
| Total time: | 3.10s | 34.15s | 3.05s |
rxjs@5.0.0-beta.2 has some pretty complex type signitured functions:
I know the type inference is not omnipotent, it need a complex computations, and this issue may be a corner-case of TypeScript compiler.
But I also think this would be a problem if libraries having a complex type signatures rises in the future.
Could you resolve this problem?