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CT sizeof(+friends) for {.importc, completeStruct.} types, enable ABI static checks (#13926)

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* -d:checkabi obsolete (ABI check now enforced); add `addTypeHeader` helper
* cleanups
* import sizeof at CT for {.completeType.}
* address comments; revert default enabling of -d:checkAbi for now
* mimportc_size_check.nim => msizeof5.nim; merge mabi_check.nim into msizeof5.nim; refactor
* all pragmas in errmsgs should be written: '.importc' (un-ambiguous and less verbose than {.importc.})
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Timothee Cour 2020-04-23 02:24:09 -07:00 • committed by GitHub
commit 66db9de714
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14 changed files with 221 additions and 39 deletions
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8
compiler/cgendata.nim
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@ -11,7 +11,7 @@
import
ast, ropes, options, intsets,
tables, ndi, lineinfos, pathutils, modulegraphs
tables, ndi, lineinfos, pathutils, modulegraphs, sets
type
TLabel* = Rope # for the C generator a label is just a rope
@ -25,7 +25,7 @@ type
# this is needed for strange type generation
# reasons
cfsFieldInfo, # section for field information
cfsTypeInfo, # section for type information
cfsTypeInfo, # section for type information (ag ABI checks)
cfsProcHeaders, # section for C procs prototypes
cfsData, # section for C constant data
cfsVars, # section for C variable declarations
@ -144,6 +144,10 @@ type
# without extension)
tmpBase*: Rope # base for temp identifier generation
typeCache*: TypeCache # cache the generated types
typeABICache*: HashSet[SigHash] # cache for ABI checks; reusing typeCache
# would be ideal but for some reason enums
# don't seem to get cached so it'd generate
# 1 ABI check per occurence in code
forwTypeCache*: TypeCache # cache for forward declarations of types
declaredThings*: IntSet # things we have declared in this .c file
declaredProtos*: IntSet # prototypes we have declared in this .c file