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Diffstat (limited to 'RELNOTES')
| -rw-r--r-- | RELNOTES | 42 |
1 files changed, 42 insertions, 0 deletions
@@ -1,3 +1,45 @@ + TXR 250 + 2020-01-31 + + + Features + + - structural pattern matching: + - new @[...] predicate operator. + - can capture object, as well as value of predicae + - better code generation + + - compiler: + - jump threading optimization + - dead code removal + - peephole optimizations + + + Bugs + + - structural pattern matching: + - numerous new test cases introduced showing various + breakage, and fixed. + - code substantially refactored + - @(or ...) pattern handled in new way. + - compiler: + - fixed totally broken treatment of append-each operator + - destructively catenating lists + - not observing append semantics w.r.t. generic sequences. + - sub-str: now subject to compatibility; -C 215 or lower + restores the behavior of always copying the input string, + even when sub-str covers the entire string. + - lazy strings: instance of invalid substrucure sharing + fixed in lazy-sub-str, causing incorrect behavior, + showing up as strangeness in @(freeform) processing + and anything else relying on lazy-sub-str. + - fixed broken @(rebind) directive. + - not removing variables from environment if left hand + side is a pattern with multiple variables. + - wrongly removing right hand side variable from environment. + + + TXR 249 2020-01-24 |