509f181f40
When an ArrayRefParameter (or OptionalArrayRefParameter) appears in a non-last position within a struct() assembly format directive, the printed output is ambiguous: the comma-separated array elements are indistinguishable from the struct-level commas separating key-value pairs. Fix this by wrapping such parameters in square brackets in both the generated printer and parser. The printer emits '[' before and ']' after the array value; the parser calls parseLSquare()/parseRSquare() around the FieldParser call. Parameters with a custom printer or parser are unaffected (the user controls the format in that case). Fixes #156623 Assisted-by: Claude Code
Multi-Level Intermediate Representation
See https://mlir.llvm.org/ for more information.