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| author | Paul "LeoNerd" Evans <leonerd@leonerd.org.uk> | 2021-07-27 14:55:14 +0100 |
|---|---|---|
| committer | Paul Evans <leonerd@leonerd.org.uk> | 2021-08-25 13:52:09 +0100 |
| commit | f79e2ff95fbb22eaf18e130c7cba8a9d40be3d75 (patch) | |
| tree | 18bedb48e757671114f8f63c8691677a06b62a1b /regen/opcodes | |
| parent | 4b21956ed64a9303ab72a46be1cd68c22bff2560 (diff) | |
| download | perl-f79e2ff95fbb22eaf18e130c7cba8a9d40be3d75.tar.gz | |
Create `defer` syntax and `OP_PUSHDEFER` opcode
Adds syntax `defer { BLOCK }` to create a deferred block; code that is
deferred until the scope exits. This syntax is guarded by
use feature 'defer';
Adds a new opcode, `OP_PUSHDEFER`, which is a LOGOP whose `op_other` field
gives the start of an optree to be deferred until scope exit. That op
pointer will be stored on the save stack and invoked as part of scope
unwind.
Included is support for `B::Deparse` to deparse the optree back into
syntax.
Diffstat (limited to 'regen/opcodes')
| -rw-r--r-- | regen/opcodes | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/regen/opcodes b/regen/opcodes index 6a3f8db024..0192f1c804 100644 --- a/regen/opcodes +++ b/regen/opcodes @@ -582,3 +582,4 @@ entertrycatch try {block} ck_trycatch | leavetrycatch try {block} exit ck_null @ poptry pop try ck_null @ catch catch {} block ck_null | +pushdefer push defer {} block ck_null | |