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30 lines
1.3 KiB
Diff
30 lines
1.3 KiB
Diff
diff --git a/lisp/emacs-lisp/bytecomp.el b/lisp/emacs-lisp/bytecomp.el
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index 6c5051d70c4..a0063cbef7b 100644
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--- a/lisp/emacs-lisp/bytecomp.el
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+++ b/lisp/emacs-lisp/bytecomp.el
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@@ -3570,8 +3570,6 @@ byte-compile-form
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(setq form (cons 'progn (cdr form)))
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(setq handler #'byte-compile-progn))
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((and (or sef (function-get (car form) 'important-return-value))
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- ;; Don't warn for arguments to `ignore'.
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- (not (eq byte-compile--for-effect 'for-effect-no-warn))
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(byte-compile-warning-enabled-p
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'ignored-return-value (car form)))
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(byte-compile-warn-x
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@@ -4515,8 +4513,11 @@ byte-compile-goto-if
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(defun byte-compile-ignore (form)
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(dolist (arg (cdr form))
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- ;; Compile each argument for-effect but suppress unused-value warnings.
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- (byte-compile-form arg 'for-effect-no-warn))
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+ ;; Compile args for value (to avoid warnings about unused values),
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+ ;; emit a discard after each, and trust the LAP peephole optimiser
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+ ;; to annihilate useless ops.
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+ (byte-compile-form arg)
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+ (byte-compile-discard))
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(byte-compile-form nil))
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;; Return the list of items in CONDITION-PARAM that match PRED-LIST.
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--
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2.42.0
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