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codegen improvement: map the empty string to 'nil' since it's now allowed to do that

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This commit is contained in:
Araq 2018-08-08 12:06:00 +02:00
commit 640b30a47f
1 changed files with 3 additions and 3 deletions
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4
compiler/ccgexprs.nim
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@ -65,8 +65,8 @@ proc genLiteral(p: BProc, n: PNode, ty: PType): Rope =
of tyString: of tyString:
# with the new semantics for 'nil' strings, we can map "" to nil and # with the new semantics for 'nil' strings, we can map "" to nil and
# save tons of allocations: # save tons of allocations:
#if n.strVal.len == 0: result = genNilStringLiteral(p.module, n.info) if n.strVal.len == 0: result = genNilStringLiteral(p.module, n.info)
#else: else:
result = genStringLiteral(p.module, n) result = genStringLiteral(p.module, n)
else: else:
if n.strVal.isNil: result = rope("NIM_NIL") if n.strVal.isNil: result = rope("NIM_NIL")