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| author | Derek 呆 <116649+derekdai@users.noreply.github.com> | 2021-10-30 01:55:48 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-10-29 19:55:48 +0200 |
| commit | f755e452d2a2c7656f07793b7f01dc654a7c5253 (patch) | |
| tree | 40c33b29583885a48ba2aaef2c8f9090e8dc18cb /compiler | |
| parent | cfdac6666f5772479724e082fb08c2db694d8d40 (diff) | |
| download | Nim-f755e452d2a2c7656f07793b7f01dc654a7c5253.tar.gz | |
fix #18971 (#19070) [backport:1.6]
since the example code return value from global variable, instead of first argument, the `n.len` is 1 which causes compiler crashes.
Diffstat (limited to 'compiler')
| -rw-r--r-- | compiler/varpartitions.nim | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/varpartitions.nim b/compiler/varpartitions.nim index 8f422face..709d00fa0 100644 --- a/compiler/varpartitions.nim +++ b/compiler/varpartitions.nim @@ -479,7 +479,7 @@ proc destMightOwn(c: var Partitions; dest: var VarIndex; n: PNode) = # calls do construct, what we construct must be destroyed, # so dest cannot be a cursor: dest.flags.incl ownsData - elif n.typ.kind in {tyLent, tyVar}: + elif n.typ.kind in {tyLent, tyVar} and n.len > 1: # we know the result is derived from the first argument: var roots: seq[(PSym, int)] allRoots(n[1], roots, RootEscapes) |