Remove API overhead and checks

[blakeembrey]

Based on the improved parser PR, this one takes things further with major breaking changes to the API. It's intended to provide basic performance boosts and ignore things that are likely already occurring upstream or downstream of the package.

Example:

• Accept string input only. Currently it accepts req/res objects but throws when the header field is missing. This would require upstream to grab it and validate behavior already, negating the need for these shortcuts.
• Made parameters optional for a ~10% perf boost when no parameters present.
• Stopped validating type on the parser (should done downstream anyway, no need to check the format is ideal here) for ~10% improvement across all benchmarks.
• Stopped sorting parameter names, use object ordering provided in format (>10% boost when parameters are present)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (cc480a1) to head (138232d).

Additional details and impacted files

@@                 Coverage Diff                  @@
##           be/improved-parser       #59   +/-   ##
====================================================
  Coverage              100.00%   100.00%           
====================================================
  Files                       1         1           
  Lines                     137       108   -29     
  Branches                   55        40   -15     
====================================================
- Hits                      137       108   -29     

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[blakeembrey]

Benchmarking results as I refactoring, with some level of noise:

Begin:

 ✓ src/index.bench.ts > parse 5168ms
     name                                      hz     min     max    mean     p75     p99    p995    p999     rme  samples
   · basic                          11,095,872.87  0.0000  0.2537  0.0001  0.0001  0.0001  0.0002  0.0006  ±0.36%  5547937
   · simple parameters               2,790,153.54  0.0003  0.4071  0.0004  0.0004  0.0005  0.0005  0.0009  ±0.28%  1395077
   · quoted and escaped parameters   1,702,015.97  0.0005  5.0965  0.0006  0.0006  0.0007  0.0010  0.0023  ±2.04%   851008
   · OWS-heavy parameters            2,452,847.58  0.0003  0.4173  0.0004  0.0004  0.0005  0.0005  0.0011  ±0.30%  1226424

 ✓ src/index.bench.ts > format 4749ms
     name                                      hz     min     max    mean     p75     p99    p995    p999     rme  samples
   · basic                          16,051,491.72  0.0000  0.0642  0.0001  0.0001  0.0001  0.0001  0.0002  ±0.11%  8025747
   · simple parameters               2,126,189.29  0.0003  0.3365  0.0005  0.0005  0.0006  0.0010  0.0012  ±0.51%  1063095
   · quoted and escaped parameters   1,541,025.19  0.0005  0.4090  0.0006  0.0007  0.0008  0.0010  0.0013  ±0.35%   770513

Accept only 1 type:

 ✓ src/index.bench.ts > parse 5034ms
     name                                      hz     min     max    mean     p75     p99    p995    p999     rme  samples
   · basic                          11,089,125.38  0.0000  0.3371  0.0001  0.0001  0.0001  0.0001  0.0005  ±0.31%  5544563
   · simple parameters               2,727,523.95  0.0003  0.3662  0.0004  0.0004  0.0005  0.0005  0.0008  ±0.15%  1363763
   · quoted and escaped parameters   1,694,832.46  0.0005  0.3011  0.0006  0.0006  0.0007  0.0008  0.0012  ±0.23%   847417
   · OWS-heavy parameters            2,473,229.58  0.0003  0.0378  0.0004  0.0004  0.0005  0.0005  0.0008  ±0.04%  1236615

 ✓ src/index.bench.ts > format 4657ms
     name                                      hz     min     max    mean     p75     p99    p995    p999     rme  samples
   · basic                          15,526,014.57  0.0000  0.0418  0.0001  0.0001  0.0001  0.0001  0.0002  ±0.07%  7763008
   · simple parameters               2,094,746.67  0.0004  0.3286  0.0005  0.0005  0.0006  0.0010  0.0012  ±0.45%  1047374
   · quoted and escaped parameters   1,508,273.20  0.0005  0.3430  0.0007  0.0007  0.0008  0.0010  0.0013  ±0.44%   754137

Make parameters optional:

 ✓ src/index.bench.ts > parse 5372ms
     name                                      hz     min      max    mean     p75     p99    p995    p999     rme  samples
   · basic                          12,385,240.86  0.0000   1.4538  0.0001  0.0001  0.0001  0.0001  0.0002  ±0.58%  6192621
   · simple parameters               2,701,204.56  0.0002   0.3405  0.0004  0.0004  0.0005  0.0005  0.0008  ±0.19%  1350603
   · quoted and escaped parameters   1,652,974.56  0.0004  14.1370  0.0006  0.0006  0.0007  0.0010  0.0031  ±5.68%   826488
   · OWS-heavy parameters            2,480,004.50  0.0003   0.4736  0.0004  0.0004  0.0005  0.0005  0.0009  ±0.25%  1240003

 ✓ src/index.bench.ts > format 4804ms
     name                                      hz     min     max    mean     p75     p99    p995    p999     rme  samples
   · basic                          16,254,679.38  0.0000  0.0742  0.0001  0.0001  0.0001  0.0001  0.0002  ±0.10%  8127340
   · simple parameters               2,124,130.70  0.0003  0.3569  0.0005  0.0005  0.0006  0.0010  0.0012  ±0.49%  1062066
   · quoted and escaped parameters   1,518,046.69  0.0005  0.4213  0.0007  0.0007  0.0008  0.0010  0.0013  ±0.44%   759024

Stop validating type:

 ✓ src/index.bench.ts > parse 6342ms
     name                                      hz     min     max    mean     p75     p99    p995    p999     rme  samples
   · basic                          19,182,395.23  0.0000  0.5084  0.0001  0.0000  0.0001  0.0001  0.0002  ±0.25%  9591198
   · simple parameters               2,987,966.15  0.0002  0.2443  0.0003  0.0003  0.0004  0.0005  0.0008  ±0.11%  1493984
   · quoted and escaped parameters   1,819,740.33  0.0004  0.4465  0.0005  0.0005  0.0007  0.0009  0.0020  ±0.55%   909871
   · OWS-heavy parameters            2,678,027.18  0.0003  0.3218  0.0004  0.0004  0.0005  0.0005  0.0008  ±0.19%  1339014

 ✓ src/index.bench.ts > format 4755ms
     name                                      hz     min      max    mean     p75     p99    p995    p999     rme  samples
   · basic                          15,981,519.35  0.0000   0.0498  0.0001  0.0001  0.0001  0.0001  0.0002  ±0.07%  7990761
   · simple parameters               2,017,000.31  0.0003  23.7573  0.0005  0.0005  0.0006  0.0010  0.0014  ±9.32%  1008501
   · quoted and escaped parameters   1,478,169.23  0.0005   4.0170  0.0007  0.0007  0.0009  0.0012  0.0029  ±1.61%   739114

Stop sorting params in format:

 ✓ src/index.bench.ts > parse 6449ms
     name                                      hz     min     max    mean     p75     p99    p995    p999     rme  samples
   · basic                          18,759,838.39  0.0000  1.5379  0.0001  0.0000  0.0001  0.0001  0.0002  ±1.06%  9379920
   · simple parameters               2,994,849.78  0.0002  0.3295  0.0003  0.0003  0.0004  0.0005  0.0009  ±0.19%  1497425
   · quoted and escaped parameters   1,842,136.72  0.0004  2.3385  0.0005  0.0005  0.0007  0.0009  0.0020  ±1.10%   921069
   · OWS-heavy parameters            2,663,291.93  0.0002  0.4533  0.0004  0.0004  0.0005  0.0005  0.0008  ±0.25%  1331646

 ✓ src/index.bench.ts > format 4930ms
     name                                      hz     min      max    mean     p75     p99    p995    p999     rme  samples
   · basic                          16,062,205.72  0.0000   0.0403  0.0001  0.0001  0.0001  0.0001  0.0002  ±0.08%  8031104
   · simple parameters               2,811,505.03  0.0002  14.9218  0.0004  0.0003  0.0004  0.0005  0.0009  ±5.88%  1405753
   · quoted and escaped parameters   1,862,616.45  0.0004   0.2688  0.0005  0.0005  0.0006  0.0007  0.0011  ±0.22%   931309

Notably the type validation during parsing and parameter sorting were the bigger wins. Arguably maybe we should validate, but I do prefer the safe no-throw path of a parser and the strict validation of the formatter. This mirrors other packages like cookie.