52a1346b78
For "USE, INTRINSIC", search only for intrinsic modules; for "USE, NON_INTRINSIC", do not recognize intrinsic modules. Allow modules of both kinds with the same name to be used in the same source file (but not in the same scoping unit, a constraint of the standard that is now enforced). The symbol table's scope tree now has a single instance of a scope with a new kind, IntrinsicModules, whose children are the USE'd intrinsic modules (explicit or not). This separate "top-level" scope is a child of the single global scope and it allows both intrinsic and non-intrinsic modules of the same name to exist in the symbol table. Intrinsic modules' scopes' symbols now have the INTRINSIC attribute set. The search path directories need to make a distinction between regular directories and the one(s) that point(s) to intrinsic modules. I allow for multiple intrinsic module directories in the second search path, although only one is needed today. Differential Revision: https://reviews.llvm.org/D118631
96 lines
3.1 KiB
C++
96 lines
3.1 KiB
C++
//===-- lib/Semantics/mod-file.h --------------------------------*- C++ -*-===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef FORTRAN_SEMANTICS_MOD_FILE_H_
|
|
#define FORTRAN_SEMANTICS_MOD_FILE_H_
|
|
|
|
#include "flang/Semantics/attr.h"
|
|
#include "flang/Semantics/symbol.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
#include <string>
|
|
|
|
namespace Fortran::parser {
|
|
class CharBlock;
|
|
class Message;
|
|
class MessageFixedText;
|
|
} // namespace Fortran::parser
|
|
|
|
namespace llvm {
|
|
class raw_ostream;
|
|
}
|
|
|
|
namespace Fortran::semantics {
|
|
|
|
using SourceName = parser::CharBlock;
|
|
class Symbol;
|
|
class Scope;
|
|
class SemanticsContext;
|
|
|
|
class ModFileWriter {
|
|
public:
|
|
explicit ModFileWriter(SemanticsContext &context) : context_{context} {}
|
|
bool WriteAll();
|
|
|
|
private:
|
|
SemanticsContext &context_;
|
|
// Buffer to use with raw_string_ostream
|
|
std::string usesBuf_;
|
|
std::string useExtraAttrsBuf_;
|
|
std::string declsBuf_;
|
|
std::string containsBuf_;
|
|
// Tracks nested DEC structures and fields of that type
|
|
UnorderedSymbolSet emittedDECStructures_, emittedDECFields_;
|
|
|
|
llvm::raw_string_ostream uses_{usesBuf_};
|
|
llvm::raw_string_ostream useExtraAttrs_{
|
|
useExtraAttrsBuf_}; // attrs added to used entity
|
|
llvm::raw_string_ostream decls_{declsBuf_};
|
|
llvm::raw_string_ostream contains_{containsBuf_};
|
|
|
|
void WriteAll(const Scope &);
|
|
void WriteOne(const Scope &);
|
|
void Write(const Symbol &);
|
|
std::string GetAsString(const Symbol &);
|
|
void PutSymbols(const Scope &);
|
|
// Returns true if a derived type with bindings and "contains" was emitted
|
|
bool PutComponents(const Symbol &);
|
|
void PutSymbol(llvm::raw_ostream &, const Symbol &);
|
|
void PutEntity(llvm::raw_ostream &, const Symbol &);
|
|
void PutEntity(
|
|
llvm::raw_ostream &, const Symbol &, std::function<void()>, Attrs);
|
|
void PutObjectEntity(llvm::raw_ostream &, const Symbol &);
|
|
void PutProcEntity(llvm::raw_ostream &, const Symbol &);
|
|
void PutDerivedType(const Symbol &, const Scope * = nullptr);
|
|
void PutDECStructure(const Symbol &, const Scope * = nullptr);
|
|
void PutTypeParam(llvm::raw_ostream &, const Symbol &);
|
|
void PutSubprogram(const Symbol &);
|
|
void PutGeneric(const Symbol &);
|
|
void PutUse(const Symbol &);
|
|
void PutUseExtraAttr(Attr, const Symbol &, const Symbol &);
|
|
};
|
|
|
|
class ModFileReader {
|
|
public:
|
|
// directories specifies where to search for module files
|
|
ModFileReader(SemanticsContext &context) : context_{context} {}
|
|
// Find and read the module file for a module or submodule.
|
|
// If ancestor is specified, look for a submodule of that module.
|
|
// Return the Scope for that module/submodule or nullptr on error.
|
|
Scope *Read(const SourceName &, std::optional<bool> isIntrinsic,
|
|
Scope *ancestor, bool silent = false);
|
|
|
|
private:
|
|
SemanticsContext &context_;
|
|
|
|
parser::Message &Say(const SourceName &, const std::string &,
|
|
parser::MessageFixedText &&, const std::string &);
|
|
};
|
|
|
|
} // namespace Fortran::semantics
|
|
#endif
|