Files
swift-mirror/lib/Sema/InstrumenterSupport.cpp
Chris Brough 87e8627f2d [5.1] Upgrade PCMacro/PlaygroundTransform to support module/file IDs
This change PCMacro and PlaygroundTransform to return an a moduleID and
fileID in addition to the source location information. The Frontend has
been changed to run PCMacro and PlaygroundTransform on all input files
instead of the main file only.

The tests have been updated to conform to these changes with an addition
of module and file ID specific tests. The Playgrounds related tests were
adjusted to make a module out of the stub interface files since those
files should not have PCMacro and PlaygroundTransform applied to them.

rdar://problem/50821146
2019-05-28 14:20:59 -07:00

136 lines
4.2 KiB
C++

//===--- InstrumenterSupport.cpp - Instrumenter Support -------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
//
// This file implements the supporting functions for writing instrumenters of
// the Swift AST.
//
//===----------------------------------------------------------------------===//
#include "InstrumenterSupport.h"
#include "swift/AST/DiagnosticSuppression.h"
#include "swift/Demangling/Punycode.h"
#include "llvm/Support/Path.h"
using namespace swift;
using namespace swift::instrumenter_support;
namespace {
class ErrorGatherer : public DiagnosticConsumer {
private:
bool error = false;
DiagnosticEngine &diags;
public:
ErrorGatherer(DiagnosticEngine &diags) : diags(diags) {
diags.addConsumer(*this);
}
~ErrorGatherer() override { diags.takeConsumers(); }
void
handleDiagnostic(SourceManager &SM, SourceLoc Loc, DiagnosticKind Kind,
StringRef FormatString,
ArrayRef<DiagnosticArgument> FormatArgs,
const DiagnosticInfo &Info,
const SourceLoc bufferIndirectlyCausingDiagnostic) override {
if (Kind == swift::DiagnosticKind::Error) {
error = true;
}
DiagnosticEngine::formatDiagnosticText(llvm::errs(), FormatString,
FormatArgs);
llvm::errs() << "\n";
}
bool hadError() { return error; }
};
class ErrorFinder : public ASTWalker {
bool error = false;
public:
ErrorFinder() {}
std::pair<bool, Expr *> walkToExprPre(Expr *E) override {
if (isa<ErrorExpr>(E) || !E->getType() || E->getType()->hasError()) {
error = true;
return {false, E};
}
return {true, E};
}
bool walkToDeclPre(Decl *D) override {
if (auto *VD = dyn_cast<ValueDecl>(D)) {
if (!VD->hasInterfaceType() || VD->getInterfaceType()->hasError()) {
error = true;
return false;
}
}
return true;
}
bool hadError() { return error; }
};
} // end anonymous namespace
InstrumenterBase::InstrumenterBase(ASTContext &C, DeclContext *DC)
: Context(C), TypeCheckDC(DC), CF(*this) {
// Prefixes for module and file vars
const std::string builtinPrefix = "__builtin";
const std::string modulePrefix = "_pg_module_";
const std::string filePrefix = "_pg_file_";
// Setup Module identifier
std::string moduleName = TypeCheckDC->getParentModule()->getName().str();
Identifier moduleIdentifier =
Context.getIdentifier(builtinPrefix + modulePrefix + moduleName);
SmallVector<ValueDecl *, 1> results;
TypeCheckDC->getParentModule()->lookupValue(
{}, moduleIdentifier, NLKind::UnqualifiedLookup, results);
ModuleIdentifier = (results.size() == 1) ? moduleIdentifier : Identifier();
// Setup File identifier
StringRef filePath = TypeCheckDC->getParentSourceFile()->getFilename();
StringRef fileName = llvm::sys::path::stem(filePath);
std::string filePunycodeName;
Punycode::encodePunycodeUTF8(fileName, filePunycodeName, true);
Identifier fileIdentifier =
Context.getIdentifier(builtinPrefix + modulePrefix + moduleName +
filePrefix + filePunycodeName);
results.clear();
TypeCheckDC->getParentModule()->lookupValue(
{}, fileIdentifier, NLKind::UnqualifiedLookup, results);
FileIdentifier = (results.size() == 1) ? fileIdentifier : Identifier();
}
void InstrumenterBase::anchor() {}
bool InstrumenterBase::doTypeCheckImpl(ASTContext &Ctx, DeclContext *DC,
Expr * &parsedExpr) {
DiagnosticSuppression suppression(Ctx.Diags);
ErrorGatherer errorGatherer(Ctx.Diags);
TypeChecker &TC = TypeChecker::createForContext(Ctx);
TC.typeCheckExpression(parsedExpr, DC);
if (parsedExpr) {
ErrorFinder errorFinder;
parsedExpr->walk(errorFinder);
if (!errorFinder.hadError() && !errorGatherer.hadError()) {
return true;
}
}
return false;
}