Add Edit Lambda command to expand LAMBDA call into LET#99
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Adds a ribbon button that replaces the active cell's exact call to a registered LAMBDA (e.g. =MyCalc(A1, B1 + 2)) with an equivalent =LET(...) that inlines parameters bound to call-site arguments followed by the LAMBDA body. The workbook Name definition is left untouched so rerunning LET to LAMBDA with the same name overwrites it. Closes #94 Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…lash With ExplicitExports=false, ExcelDNA auto-registers every public static method as a UDF. Both command classes had a public static Run method, causing 'Repeated function name: Run' on add-in load. Making them internal keeps them reachable from the same-assembly RibbonController while hiding them from UDF discovery. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
- FormulaFormatter emits LET and LAMBDA blocks one binding/param per line at a 4-space indent, so both LET-to-LAMBDA storage and Edit Lambda output render legibly in Excel's formula bar and Name Manager. - Edit Lambda now folds a LET body into the outer LET rather than producing a LET-inside-LET, giving a single flat LET after expansion. - LET-to-LAMBDA dialog allows overwriting an existing LAMBDA with the same name (shown as an informational message, Save stays enabled). Names pointing to something that isn't a LAMBDA still block.
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Closes #94
Summary
=LET(...)inlining the LAMBDA's parameters bound to the call-site arguments.LambdaSignatureParserextracts(param1, ..., paramN, body)from a=LAMBDA(...)RefersTo(handles optional[x]brackets, nested commas, case-insensitive, whitespace-tolerant).EditLambdaCommanddetects=Name(args...)shape exactly (rejects trailing content, missing parens), resolves the name via Name Manager, and builds the expanded LET. The LAMBDA Name definition is left in place so rerunning LET to LAMBDA with the same name overwrites it.Example
MyCalc==LAMBDA(x, y, x * y + 1), active cell ==MyCalc(A1, B1 + 2)→ cell becomes
=LET(x, A1, y, B1 + 2, x * y + 1).Test plan
LambdaSignatureParserTests(14) andEditLambdaCommandTests(19) — 421 tests pass, 0 fail.LambdaLoader.InjectLambdapath).=SUM(A1:A10)), non-exact call (=MyCalc(A1) + 5), too many args — all show a clear message and make no change.🤖 Generated with Claude Code