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Sema: Build fully type-checked AST for stub initializers

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This commit is contained in:
Slava Pestov
2019-05-22 16:32:37 -04:00
parent b26ba2dce9
commit 140a5b0018
1 changed files with 44 additions and 6 deletions
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50
lib/Sema/CodeSynthesis.cpp
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@@ -2338,11 +2338,21 @@ static void synthesizeStubBody(AbstractFunctionDecl *fn, void *) {
return;
}
auto *staticStringDecl = ctx.getStaticStringDecl();
auto staticStringType = staticStringDecl->getDeclaredType();
auto staticStringInit = ctx.getStringBuiltinInitDecl(staticStringDecl);
auto *uintDecl = ctx.getUIntDecl();
auto uintType = uintDecl->getDeclaredType();
auto uintInit = ctx.getIntBuiltinInitDecl(uintDecl);
// Create a call to Swift._unimplementedInitializer
auto loc = classDecl->getLoc();
Expr *ref = new (ctx) DeclRefExpr(unimplementedInitDecl,
DeclNameLoc(loc),
/*Implicit=*/true);
ref->setType(unimplementedInitDecl->getInterfaceType()
->removeArgumentLabels(1));
llvm::SmallString<64> buffer;
StringRef fullClassName = ctx.AllocateCopy(
@@ -2350,14 +2360,42 @@ static void synthesizeStubBody(AbstractFunctionDecl *fn, void *) {
"." +
classDecl->getName().str()).toStringRef(buffer));
Expr *className = new (ctx) StringLiteralExpr(fullClassName, loc,
auto *className = new (ctx) StringLiteralExpr(fullClassName, loc,
/*Implicit=*/true);
Expr *call = CallExpr::createImplicit(ctx, ref, { className },
{ ctx.Id_className });
ctor->setBody(BraceStmt::create(ctx, SourceLoc(),
ASTNode(call),
SourceLoc(),
className->setBuiltinInitializer(staticStringInit);
assert(isa<ConstructorDecl>(className->getBuiltinInitializer().getDecl()));
className->setType(staticStringType);
auto *initName = new (ctx) MagicIdentifierLiteralExpr(
MagicIdentifierLiteralExpr::Function, loc, /*Implicit=*/true);
initName->setType(staticStringType);
initName->setBuiltinInitializer(staticStringInit);
auto *file = new (ctx) MagicIdentifierLiteralExpr(
MagicIdentifierLiteralExpr::File, loc, /*Implicit=*/true);
file->setType(staticStringType);
file->setBuiltinInitializer(staticStringInit);
auto *line = new (ctx) MagicIdentifierLiteralExpr(
MagicIdentifierLiteralExpr::Line, loc, /*Implicit=*/true);
line->setType(uintType);
line->setBuiltinInitializer(uintInit);
auto *column = new (ctx) MagicIdentifierLiteralExpr(
MagicIdentifierLiteralExpr::Column, loc, /*Implicit=*/true);
column->setType(uintType);
column->setBuiltinInitializer(uintInit);
Expr *call = CallExpr::createImplicit(
ctx, ref, { className, initName, file, line, column }, {});
call->setType(ctx.getNeverType());
SmallVector<ASTNode, 2> stmts;
stmts.push_back(call);
stmts.push_back(new (ctx) ReturnStmt(SourceLoc(), /*Result=*/nullptr));
ctor->setBody(BraceStmt::create(ctx, SourceLoc(), stmts, SourceLoc(),
/*implicit=*/true));
ctor->setBodyTypeCheckedIfPresent();
}
static std::tuple<GenericEnvironment *, GenericParamList *, SubstitutionMap>