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SILGen: Add linkage to SILDefaultWitnessTable

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This is only used in the verifier, to ensure that default witness
thunks are suffiently visible.

Also this patch removes the asserts enforcing that only resilient
protocols have a default witness table. This will change in an
upcoming patch, and in this patch is necessary for the test to work.
This commit is contained in:
Slava Pestov
2016-03-17 01:31:13 -07:00
parent 25319d9d4b
commit b13457daaa
9 changed files with 75 additions and 35 deletions
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12
lib/SIL/SILModule.cpp
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@@ -190,23 +190,17 @@ SILModule::lookUpDefaultWitnessTable(const ProtocolDecl *Protocol) {
auto found = DefaultWitnessTableMap.find(Protocol);
if (found == DefaultWitnessTableMap.end()) {
assert(Protocol->hasFixedLayout() &&
"Resilient protocol must have a default witness table");
return nullptr;
}
assert(!Protocol->hasFixedLayout() &&
"Fixed-layout protocol cannot have a default witness table");
return found->second;
}
SILDefaultWitnessTable *
SILModule::createDefaultWitnessTableDeclaration(const ProtocolDecl *Protocol) {
assert(!Protocol->hasFixedLayout() &&
"Fixed-layout protocol cannot have a default witness table");
return SILDefaultWitnessTable::create(*this, Protocol);
SILModule::createDefaultWitnessTableDeclaration(const ProtocolDecl *Protocol,
SILLinkage Linkage) {
return SILDefaultWitnessTable::create(*this, Linkage, Protocol);
}
SILFunction *SILModule::getOrCreateFunction(SILLocation loc,