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825 Commits

Author SHA1 Message Date
Andrew Kelley
2a25398c86 fix segfault when passing union enum with sub byte... 
...field to const slice parameter

we use a packed struct internally to represent a const array
of disparate union values, and needed to update the internal
getelementptr instruction to recognize that.

closes #664
 2017-12-24 04:11:58 -05:00
Andrew Kelley
760b307e8a fix endianness of sub-byte integer fields in packed structs 
closes #307
 2017-12-22 18:27:33 -05:00
Andrew Kelley
d917815d81 explicitly return from blocks 
instead of last statement being expression value

closes #629
 2017-12-22 00:50:30 -05:00
Andrew Kelley
8bc523219c add labeled loops, labeled break, labeled continue. remove goto 
closes #346
closes #630

regression: translate-c can no longer translate switch statements.
after #629 we can ressurect and modify the code to utilize arbitrarily
returning from blocks.
 2017-12-20 23:00:19 -05:00
Andrew Kelley
d686113bd2 fix crash when implicitly casting array of len 0 to slice 
closes #660
 2017-12-19 22:38:02 -05:00
Andrew Kelley
1cc450e6e7 fix assert when wrapping zero bit type in nullable 
closes #659
 2017-12-19 18:21:42 -05:00
Andrew Kelley
9d9201c3b4 bring back code that uses export and fix tests 
partial revert of 1fdebc1dc4
 2017-12-19 02:39:43 -05:00
Andrew Kelley
1fdebc1dc4 wip export rewrite 2017-12-18 09:59:57 -05:00
Andrew Kelley
c9e01412a4 fix compiler crash in a nullable if after an if in... 
...a switch prong of a switch with 2 prongs in an else

closes #656
 2017-12-14 01:07:23 -05:00
Andrew Kelley
f55fdc00fc fix const and volatile qualifiers being dropped sometimes 
in the expression `&const a.b`, the const (and/or volatile)
qualifiers would be incorrectly dropped.

closes #655
 2017-12-13 21:53:52 -05:00
Andrew Kelley
84619abe9f add test for allowing slice[slice.len..slice.len] 2017-12-12 21:56:13 -05:00
Andrew Kelley
756a218e27 add implicit cast from enum tag type of union to const ptr to the union 
closes #654
 2017-12-08 17:49:14 -05:00
Andrew Kelley
3577a80bb6 translate-c: more complex logic for translating a C cast in a macro 2017-12-08 12:28:21 -05:00
Andrew Kelley
182cf5b8de translate-c: support macros with pointer casting 2017-12-07 12:27:29 -05:00
Andrew Kelley
62c25af802 add higher level arg-parsing API + misc. changes 
* add @noInlineCall - see #640
   This fixes a crash in --release-safe and --release-fast modes
   where the optimizer inlines everything into _start and
   clobbers the command line argument data.
   If we were able to verify that the user's code never reads
   command line args, we could leave off this "no inline"
   attribute.
 * add i29 and u29 primitive types. u29 is the type of alignment,
   so it makes sense to be a primitive.
   probably in the future we'll make any `i` or `u` followed by
   digits into a primitive.
 * add `aligned` functions to Allocator interface
 * add `os.argsAlloc` and `os.argsFree` so that you can get
   a `[]const []u8`, do whatever arg parsing you want, and then free
   it. For now this uses the other API under the hood, but it could
   be reimplemented to do a single allocation.
 * add tests to make sure command line argument parsing works.
 2017-12-06 18:12:05 -05:00
Andrew Kelley
f464fe14f4 switch on enum which only has 1 field is comptime known 
closes #593
 2017-12-05 22:26:17 -05:00
Andrew Kelley
bb6b4f8db2 fix enum with 1 member causing segfault 
closes #647
 2017-12-05 22:15:33 -05:00
Andrew Kelley
c49ee9f632 allow union and its tag type to peer resolve to the tag type 2017-12-05 21:33:24 -05:00
Andrew Kelley
2715f6fdb8 allow implicit cast from union to its enum tag type 
closes #642
 2017-12-05 21:10:47 -05:00
Andrew Kelley
960914a073 add implicit cast from enum to union 
when the enum is the tag type of the union and is comptime known
to be of a void field of the union

See #642
 2017-12-05 20:46:58 -05:00
Andrew Kelley
63a2f9a8b2 fix casting integer literal to enum 2017-12-05 18:09:22 -05:00
Andrew Kelley
76f3bdfff8 add test for casting union to tag type of union 2017-12-04 02:12:13 -05:00
Andrew Kelley
54138d9e82 add test for union with 1 void field being 0 bits 2017-12-04 02:05:33 -05:00
Andrew Kelley
084911d9b3 add test for @sizeOf on extern and packed unions 2017-12-04 02:04:08 -05:00
Andrew Kelley
05d9f07541 more tests for unions 
See #618
 2017-12-04 00:56:27 -05:00
Andrew Kelley
fce435db26 fix abi alignment of union-enums not counting tag type 
add more tests for unions

See #618
 2017-12-04 00:32:12 -05:00
Andrew Kelley
5a8367e892 rename @EnumTagType to @TagType. add tests for union-enums 
See #618
 2017-12-03 22:36:01 -05:00
Andrew Kelley
0ad1239522 rework enums and unions and their relationship to each other 
* @enumTagName renamed to @tagName and it works on enums and
   union-enums
 * Remove the EnumTag type. Now there is only enum and union,
   and the tag type of a union is always an enum.
 * unions support specifying the tag enum type, and they support
   inferring an enum tag type.
 * Enums no longer support field types but they do support
   setting the tag values. Likewise union-enums when inferring
   an enum tag type support setting the tag values.
 * It is now an error for enums and unions to have 0 fields.
 * switch statements support union-enums

closes #618
 2017-12-03 20:43:56 -05:00
Andrew Kelley
137c8f5e8a ability to set tag values of enums 
also remove support for enums with 0 values

closes #305
 2017-12-02 22:32:39 -05:00
Andrew Kelley
98237f7c0b casting between integer and enum only works via tag type 
See #305
 2017-12-02 17:12:37 -05:00
Andrew Kelley
264c86853b packed structs can have enums with explicit tag types 
See #305
 2017-12-01 00:34:29 -05:00
Andrew Kelley
b62e2fd870 ability to specify tag type of enums 
see #305
 2017-11-30 22:08:11 -05:00
Andrew Kelley
7729f6cf4e translate-c: support static incomplete array inside function 2017-11-29 21:50:38 -05:00
Andrew Kelley
716b0b8655 fix capturing value of switch with all unreachable prongs 
closes #635
 2017-11-29 21:34:17 -05:00
Andrew Kelley
7066283004 translate-c: support const ptr initializer 2017-11-28 23:44:45 -05:00
Andrew Kelley
26096e79d1 translate-c: fix clobbering primitive types 2017-11-28 03:17:28 -05:00
Andrew Kelley
e745544dac translate-c: detect macros referencing field lookup 
as fn calls which assert the fn ptr is non-null
 2017-11-28 02:58:51 -05:00
Andrew Kelley
f537c51f25 Merge branch 'c-field-expr' of https://github.com/dimenus/zig into dimenus-c-field-expr 2017-11-28 00:44:16 -05:00
Mason Remaley
3e8fd24547 Implements translation for the prefix not operator (#628) 2017-11-27 21:00:05 -05:00
Ryan Saunderson
57049b95b3 Resolving merge w/ upstream master 2017-11-27 11:42:48 -06:00
dimenus
04472f57be Added support for exporting of C field expressions 2017-11-27 11:23:14 -06:00
Andrew Kelley
671183fa9a translate-c: support pointer casting 
also avoid some unnecessary casts
 2017-11-26 20:05:55 -05:00
Andrew Kelley
93fac5f257 translate-c: support variable name shadowing 2017-11-26 17:30:43 -05:00
Andrew Kelley
9a8545d590 translate-c: fix translation when no default switch case 2017-11-26 16:03:56 -05:00
Andrew Kelley
aa2ca3f02c translate-c: better way to translate switch 
previously `continue` would be handled incorrectly
 2017-11-26 15:58:49 -05:00
Andrew Kelley
1b0e90f70b translate-c supports switch statements 2017-11-26 00:58:11 -05:00
Andrew Kelley
df0e875856 translate-c: introduce the concept of scopes 
in preparation to implement switch and solve variable name collisions
 2017-11-25 20:34:05 -05:00
Andrew Kelley
a2afcae9ff fix crash when constant inside comptime function has compile error 
closes #625
 2017-11-25 18:16:33 -05:00
Andrew Kelley
b390929826 translate-c supports break and continue 2017-11-25 11:56:17 -05:00
Andrew Kelley
bf20b260ce translate-c supports for loops 2017-11-25 00:57:48 -05:00