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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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22
test/asm/unique-id.err
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@@ -1,27 +1,31 @@
warning: unique-id.asm(12) -> unique-id.asm::m(4): [-Wuser]
_u1
_u1!
while expanding symbol "warn_unique"
warning: unique-id.asm(12) -> unique-id.asm::m(5) -> unique-id.asm::m::REPT~1(6): [-Wuser]
_u2
_u2!
while expanding symbol "warn_unique"
warning: unique-id.asm(12) -> unique-id.asm::m(5) -> unique-id.asm::m::REPT~2(6): [-Wuser]
_u3
_u3!
while expanding symbol "warn_unique"
warning: unique-id.asm(12) -> unique-id.asm::m(8): [-Wuser]
_u1
_u1!
while expanding symbol "warn_unique"
warning: unique-id.asm(14) -> unique-id.asm::m(4): [-Wuser]
_u4
_u4!
while expanding symbol "warn_unique"
warning: unique-id.asm(14) -> unique-id.asm::m(5) -> unique-id.asm::m::REPT~1(6): [-Wuser]
_u5
_u5!
while expanding symbol "warn_unique"
warning: unique-id.asm(14) -> unique-id.asm::m(5) -> unique-id.asm::m::REPT~2(6): [-Wuser]
_u6
_u6!
while expanding symbol "warn_unique"
warning: unique-id.asm(14) -> unique-id.asm::m(8): [-Wuser]
_u4
_u4!
while expanding symbol "warn_unique"
FATAL: unique-id.asm(15):
ERROR: unique-id.asm(15):
Macro argument '\@' not defined
while expanding symbol "warn_unique"
warning: unique-id.asm(15): [-Wuser]
!
while expanding symbol "warn_unique"
error: Assembly aborted (1 error)!