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Make failed macro arg expansions non-fatal

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Expanding empty strings is valid but pointless;
macro args already skipped doing so, now other
`beginExpansion` calls do too.

This also fixes failed interpolations (which were
already non-fatal) to continue reading characters,
not evaluate to their initial '{' character.
This commit is contained in:
Rangi
2021-04-20 11:51:01 -04:00
committed by Eldred Habert
parent 1aeaca2af6
commit e596dbfc80
13 changed files with 84 additions and 50 deletions
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3
test/asm/rept-shift.err
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@@ -2,5 +2,6 @@ warning: rept-shift.asm(15) -> rept-shift.asm::m(10): [-Wmacro-shift]
Cannot shift macro arguments past their end
warning: rept-shift.asm(15) -> rept-shift.asm::m(11): [-Wmacro-shift]
Cannot shift macro arguments past their end
FATAL: rept-shift.asm(15) -> rept-shift.asm::m(12):
ERROR: rept-shift.asm(15) -> rept-shift.asm::m(12):
Macro argument '\1' not defined
error: Assembly aborted (1 error)!