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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 /ext/Opcode | |
| 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 'ext/Opcode')
| -rw-r--r-- | ext/Opcode/Opcode.pm | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/ext/Opcode/Opcode.pm b/ext/Opcode/Opcode.pm index de332ee110..ce8b5bfa0e 100644 --- a/ext/Opcode/Opcode.pm +++ b/ext/Opcode/Opcode.pm @@ -441,6 +441,8 @@ These are a hotchpotch of opcodes still waiting to be considered break continue smartmatch + pushdefer + custom -- where should this go =item :base_math |