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author | Denys Vlasenko | 2018-12-17 16:54:37 +0100 |
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committer | Denys Vlasenko | 2018-12-17 17:00:29 +0100 |
commit | 4b72aebe80aaa50a765d5ff61d7d67ed731502d9 (patch) | |
tree | d922437e5da9bf034d78622dc2f5b1e0e0f539db /testsuite | |
parent | b44a7f1d6642e2da39e9f27e0b504f662ca443a2 (diff) | |
download | busybox-4b72aebe80aaa50a765d5ff61d7d67ed731502d9.zip busybox-4b72aebe80aaa50a765d5ff61d7d67ed731502d9.tar.gz |
bc: remove "error after expression parsing" check
It is misplaced: caller knows better what can or cannot follow the expression.
Sometimes even caller's caller: "if (1) return a+b else..." -
parser of "return" does not know that "else" after it is valid,
parser of stmt does not know it either, - only parser of
"if" knows it!
The removed code balked on e.g. "{ print 1 }" statement.
This does not break any valid programs, but starts accepting some
invalid ones, e.g. "print 1 print 2" would work.
function old new delta
zcommon_parse_expr 40 32 -8
zbc_parse_name 509 494 -15
zbc_parse_stmt_possibly_auto 1678 1638 -40
bc_parse_expr_empty_ok 2025 1977 -48
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/4 up/down: 0/-111) Total: -111 bytes
text data bss dec hex filename
981599 485 7296 989380 f18c4 busybox_old
981488 485 7296 989269 f1855 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'testsuite')
-rwxr-xr-x | testsuite/bc.tests | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/testsuite/bc.tests b/testsuite/bc.tests index d057bea..e0a45a8 100755 --- a/testsuite/bc.tests +++ b/testsuite/bc.tests @@ -76,6 +76,11 @@ testing "bc print 1,2,3" \ "123" \ "" "print 1,2,3" +testing "bc { print 1 }" \ + "bc" \ + "1" \ + "" "{ print 1 }" + testing "bc nested loops and breaks" \ "bc" \ "\ |