mirror of
https://github.com/apple/swift.git
synced 2025-12-21 12:14:44 +01:00
127 lines
4.4 KiB
C++
127 lines
4.4 KiB
C++
//===-- Frontend.cpp - frontend utility methods ---------------------------===//
|
|
//
|
|
// This source file is part of the Swift.org open source project
|
|
//
|
|
// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
|
|
// Licensed under Apache License v2.0 with Runtime Library Exception
|
|
//
|
|
// See http://swift.org/LICENSE.txt for license information
|
|
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file contains utility methods for parsing and performing semantic
|
|
// on modules.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "Frontend.h"
|
|
#include "Immediate.h"
|
|
#include "swift/AST/Identifier.h"
|
|
#include "swift/AST/ASTContext.h"
|
|
#include "swift/AST/Component.h"
|
|
#include "swift/AST/Diagnostics.h"
|
|
#include "swift/AST/Decl.h"
|
|
#include "swift/AST/Expr.h"
|
|
#include "swift/AST/Module.h"
|
|
#include "swift/AST/NameLookup.h"
|
|
#include "swift/AST/Pattern.h"
|
|
#include "swift/AST/Stmt.h"
|
|
#include "swift/AST/Types.h"
|
|
#include "swift/Parse/Lexer.h"
|
|
#include "swift/Subsystems.h"
|
|
#include "llvm/Support/MemoryBuffer.h"
|
|
#include "llvm/Support/Path.h"
|
|
#include "llvm/Support/SourceMgr.h"
|
|
|
|
using namespace swift;
|
|
|
|
static Identifier getModuleIdentifier(StringRef OutputName,
|
|
ASTContext &Context,
|
|
TranslationUnit::TUKind moduleKind) {
|
|
StringRef moduleName = OutputName;
|
|
|
|
// As a special case, recognize <stdin>.
|
|
if (moduleName == "<stdin>")
|
|
return Context.getIdentifier("stdin");
|
|
|
|
// Find the stem of the filename.
|
|
moduleName = llvm::sys::path::stem(moduleName);
|
|
|
|
// Complain about non-identifier characters in the module name.
|
|
if (!Lexer::isIdentifier(moduleName)) {
|
|
if (moduleKind == TranslationUnit::Main) {
|
|
moduleName = "main";
|
|
} else {
|
|
SourceLoc Loc;
|
|
Context.Diags.diagnose(Loc, diag::bad_module_name, moduleName);
|
|
moduleName = "bad";
|
|
}
|
|
}
|
|
|
|
return Context.getIdentifier(moduleName);
|
|
}
|
|
|
|
|
|
/// "SIL" is non-null when we're parsing a .sil file instead of a .swift file.
|
|
TranslationUnit*
|
|
swift::buildSingleTranslationUnit(ASTContext &Context,
|
|
StringRef OutputName,
|
|
ArrayRef<unsigned> BufferIDs,
|
|
bool ParseOnly, TranslationUnit::TUKind Kind,
|
|
SILModule *SIL) {
|
|
Component *Comp = new (Context.Allocate<Component>(1)) Component();
|
|
Identifier ID = getModuleIdentifier(OutputName, Context, Kind);
|
|
TranslationUnit *TU = new (Context) TranslationUnit(ID, Comp, Context, Kind);
|
|
Context.LoadedModules[ID.str()] = TU;
|
|
|
|
// If we're in SIL mode, don't auto import any libraries.
|
|
if (Kind != TranslationUnit::SIL)
|
|
performAutoImport(TU);
|
|
|
|
unsigned CurTUElem = 0;
|
|
for (auto &BufferID : BufferIDs) {
|
|
unsigned BufferOffset = 0;
|
|
const llvm::MemoryBuffer *Buffer =
|
|
Context.SourceMgr.getMemoryBuffer(BufferID);
|
|
do {
|
|
parseIntoTranslationUnit(TU, BufferID, &BufferOffset, 0, SIL);
|
|
if (!ParseOnly && BufferIDs.size() == 1) {
|
|
performNameBinding(TU, CurTUElem);
|
|
performTypeChecking(TU, CurTUElem);
|
|
CurTUElem = TU->Decls.size();
|
|
}
|
|
} while (BufferOffset != Buffer->getBufferSize());
|
|
}
|
|
|
|
if (!ParseOnly && BufferIDs.size() > 1) {
|
|
performNameBinding(TU);
|
|
performTypeChecking(TU);
|
|
}
|
|
|
|
return TU;
|
|
}
|
|
|
|
bool swift::appendToREPLTranslationUnit(TranslationUnit *TU,
|
|
REPLContext &RC,
|
|
llvm::MemoryBuffer *Buffer,
|
|
unsigned &BufferOffset,
|
|
unsigned BufferEndOffset) {
|
|
assert(TU->Kind == TranslationUnit::REPL && "Can't append to a non-REPL TU");
|
|
|
|
RC.CurBufferID
|
|
= TU->getASTContext().SourceMgr.AddNewSourceBuffer(Buffer, llvm::SMLoc());
|
|
|
|
bool FoundAnySideEffects = false;
|
|
unsigned CurTUElem = RC.CurTUElem;
|
|
do {
|
|
FoundAnySideEffects |= parseIntoTranslationUnit(TU, RC.CurBufferID,
|
|
&BufferOffset,
|
|
BufferEndOffset);
|
|
performNameBinding(TU, CurTUElem);
|
|
performTypeChecking(TU, CurTUElem);
|
|
CurTUElem = TU->Decls.size();
|
|
} while (BufferOffset != BufferEndOffset);
|
|
return FoundAnySideEffects;
|
|
}
|