v0.13

[rkalis]

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Project	Deployment	Actions	Updated (UTC)
cashscript	Ready	Preview, Comment	May 19, 2026 10:41am

[codecov]

Codecov Report

❌ Patch coverage is 82.90094% with 145 lines in your changes missing coverage. Please review.
✅ Project coverage is 86.26%. Comparing base (c8320cc) to head (1233d88).

Files with missing lines	Patch %	Lines
packages/utils/src/artifact.ts	2.77%	21 Missing and 14 partials ⚠️
.../cashscript/src/network/ElectrumNetworkProvider.ts	15.62%	19 Missing and 8 partials ⚠️
packages/cashscript/src/transaction-utils.ts	0.00%	20 Missing and 5 partials ⚠️
packages/cashscript/src/network/errors.ts	0.00%	12 Missing ⚠️
packages/utils/src/script.ts	27.27%	8 Missing ⚠️
packages/cashscript/src/Errors.ts	50.00%	6 Missing ⚠️
packages/cashc/src/ast/AstBuilder.ts	93.65%	3 Missing and 1 partial ⚠️
packages/utils/src/data.ts	33.33%	3 Missing and 1 partial ⚠️
packages/utils/src/fingerprint.ts	83.33%	4 Missing ⚠️
packages/utils/src/source-map.ts	63.63%	3 Missing and 1 partial ⚠️
... and 8 more

❌ Your patch check has failed because the patch coverage (82.90%) is below the target coverage (90.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #370      +/-   ##
==========================================
- Coverage   87.21%   86.26%   -0.95%     
==========================================
  Files          48       51       +3     
  Lines        3276     3895     +619     
  Branches      593      724     +131     
==========================================
+ Hits         2857     3360     +503     
- Misses        329      415      +86     
- Partials       90      120      +30     

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[rkalis]

Do we need to do this before launch?

[rkalis]

On thursday we should try to craft an example of where this might matter.

[rkalis]

This test is marked as TODO still

[rkalis]

We should fix this on thursday.

[rkalis]

We noticed that if there is only a single function parameter (and it is having its type enforced), we are adding a redundant OP_DUP and OP_DROP. See this example:

                                           /* contract ParameterCheck() {                   */
                                           /*     function spend(                           */
                                           /*         bytes8 tag,                           */
                                           /*     ) {                                       */
OP_DUP OP_SIZE OP_8 OP_EQUALVERIFY OP_DROP /*         >>> parameter type check (bytes8 tag) */
OP_SIZE OP_NIP OP_8 OP_NUMEQUAL            /*         require(tag.length == 8);             */
                                           /*     }                                         */
                                           /* }                                             */

We either fix it with a special case, or we can choose to use OP_ROLL instead of OP_PICK, which reorders the parameters on the stack.

[mr-zwets]

compiler docs are still missing the 2nd flag option

Compiler Options

interface CompilerOptions {
  enforceFunctionParameterTypes?: boolean;
}

and similarly in the release notes only has

🛠 Add compiler option to cashc (programmatic and CLI compilation) to allow for opting out of function parameter type enforcement.