Correctly report numeric overflow and clarify error semantics

[j4r0u53k]

Fixes a bug where ReadErrorReason::NotEnoughPrecision was never constructed.

NotEnoughPrecision renamed to NumericValueOverflow for clearer semantics.

Replaced magic decimal threshold with equivalent hex literal (0x80000000000000) for better readability.

[github-actions]

Code coverage report for cd20296

Coverage difference

⚠️ There are new lines with missing coverage.

Filename	Stmts	Miss	Cover	Missing
TOTAL	0	0	+100.00%

Overall coverage

Click to expand

Filename	Stmts	Miss	Cover	Missing
src/bin/cp2cp.rs	117	33	71.79%	66, 105-106, 126-132, 145, 149-150, 159-161, 170-172, 181-183, 187, 199-208, 212-213
src/cpon.rs	524	79	84.92%	35-37, 41, 45, 52, 57, 62, 75, 79, 92, 99-106, 125-146, 158-197, 300-301, 329-330, 336, 358, 371-375, 405, 421, 448-453, 490, 492-496, 511, 637
src/datetime.rs	166	48	71.08%	90-94, 102, 108-113, 117-119, 152, 163-164, 179, 184-235
src/jaq.rs	180	173	3.89%	11-230, 240, 244-280
src/decimal.rs	215	2	99.07%	132-135
src/lib.rs	9	0	100.00%
src/reader.rs	64	5	92.19%	21-23, 66, 84
src/chainpack.rs	629	13	97.93%	88, 264-276, 281
src/rpcvalue.rs	688	162	76.45%	71, 73-77, 79, 81-82, 85-100, 127-129, 175-177, 217-219, 258-263, 414-426, 434, 451, 458-463, 481, 488-513, 521, 533, 560, 577, 594, 604, 614, 624, 644, 654, 664, 674, 684, 698-727, 927-946, 985-987, 991, 1001, 1009-1020, 1024, 1027-1035, 1039, 1042-1047, 1051, 1063, 1075, 1081, 1087, 1091-1107, 1155-1163
src/textrdwr.rs	236	29	87.71%	47-72, 131, 134, 144, 147, 159, 167-169, 212, 228, 243, 253, 270, 312
src/util.rs	81	40	50.62%	25, 32-72
src/writer.rs	18	0	100.00%
src/serde.rs	52	27	48.08%	21-64, 74-82
src/json.rs	417	25	94.00%	221, 257, 265, 278, 319-334, 349, 394-396, 408, 519
src/metamap.rs	106	33	68.87%	44-53, 69-74, 90-97, 128-145
src/serde/ser.rs	578	329	43.08%	13-15, 50-52, 66-80, 86-88, 98-115, 138, 142-156, 162-173, 227-378, 387-438, 444-583, 608-633, 675, 780
src/serde/de.rs	387	110	71.58%	30, 36-37, 50, 75, 86-91, 104, 106-108, 119-124, 141-144, 148-153, 162, 179, 183-211, 254-256, 281-302, 315, 348-352, 371-401, 414-416, 425-431, 454-456, 487-489
TOTAL	4467	1108	75.20%

HTML reports

You can use GitHub CLI to download HTML coverage reports and open them automatically using this command:

(cd "$(mktemp -d)" && gh run -R silicon-heaven/libshvproto-rs download -n libshvproto-cov-html-cd20296db96f6b7fba2e83bcd51188ac587c943a && ls -1 | xargs -n1 xdg-open)

You can download the HTML reports manually here.