Fix some grammar inconsistencies for the '..' range notation.#21374
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bors merged 1 commit intorust-lang:masterfrom Jan 23, 2015
Merged
Fix some grammar inconsistencies for the '..' range notation.#21374bors merged 1 commit intorust-lang:masterfrom
bors merged 1 commit intorust-lang:masterfrom
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r? @nick29581 (rust_highfive has picked a reviewer for you, use r? to override) |
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Grammar changes:
* allow 'for _ in 1..i {}' (fixes rust-lang#20241)
* allow 'for _ in 1.. {}' as infinite loop
* prevent use of range notation in contexts where only operators of high
precedence are expected (fixes rust-lang#20811)
Parser code cleanup:
* remove RESTRICTION_NO_DOTS
* make AS_PREC const and follow naming convention
* make min_prec inclusive
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Rebased onto the big |
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@dgrunwald ok reading this now. On the face of it, it looks much nicer than the previous patch. I haven't had time to play with it yet, but I take it that this means that |
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I think I am happy with this version, all things considered. A good compromise. |
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looks fine to me too. |
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⌛ Testing commit db013f9 with merge 90224cf... |
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💔 Test failed - auto-mac-64-nopt-t |
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@bors: retry |
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⌛ Testing commit db013f9 with merge e9285f9... |
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This PR is intended as alternative to #20958. It fixes the same grammar inconsistencies, but does not increase the operator precedence of `..`, leaving it at the same level as the assignment operator. For previous discussion, see #20811 and #20958. Grammar changes: * allow `for _ in 1..i {}` (fixes #20241) * allow `for _ in 1.. {}` as infinite loop * prevent use of range notation in contexts where only operators of high precedence are expected (fixes #20811) Parser code cleanup: * remove `RESTRICTION_NO_DOTS` * make `AS_PREC` const and follow naming convention * make `min_prec` inclusive r? nikomatsakis
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Jan 29, 2015
Note: Do not merge until we get a newer snapshot that includes #21374 There was some type inference fallout (see 4th commit) because type inference with `a..b` is not as good as with `range(a, b)` (see #21672). r? @alexcrichton
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Note: Do not merge until we get a newer snapshot that includes #21374 There was some type inference fallout (see 4th commit) because type inference with `a..b` is not as good as with `range(a, b)` (see #21672). r? @alexcrichton
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…e-repr-c fix: don't fire `non_camel_case_types` lint for structs/enums marked with `repr(C)`
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This PR is intended as alternative to #20958. It fixes the same grammar inconsistencies, but does not increase the operator precedence of
.., leaving it at the same level as the assignment operator.For previous discussion, see #20811 and #20958.
Grammar changes:
for _ in 1..i {}(fixes range syntax doesn't work with non-literal endpoints in for statements #20241)for _ in 1.. {}as infinite loopParser code cleanup:
RESTRICTION_NO_DOTSAS_PRECconst and follow naming conventionmin_precinclusiver? nikomatsakis