99 lines
3.2 KiB
C++
99 lines
3.2 KiB
C++
/* -*- C++ -*-
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* Serene programming language.
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*
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* Copyright (c) 2019-2021 Sameer Rahmani <lxsameer@gnu.org>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef SERENE_LOCATION_H
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#define SERENE_LOCATION_H
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#include <mlir/IR/Diagnostics.h>
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#include <mlir/IR/Location.h>
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#include <string>
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namespace serene {
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class SereneContext;
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namespace reader {
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/// It represents a location in the input string to the parser via `line`,
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struct Location {
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/// Since namespaces are our unit of compilation, we need to have
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/// a namespace in hand
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llvm::StringRef ns;
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llvm::Optional<llvm::StringRef> filename = llvm::None;
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/// A pointer to the character that this location is pointing to
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/// it the input buffer
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const char *c = nullptr;
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/// At this stage we only support 65535 lines of code in each file
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unsigned short int line = 0;
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/// At this stage we only support 65535 chars in each line
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unsigned short int col = 0;
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bool knownLocation = true;
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::std::string toString() const;
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Location() = default;
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Location(llvm::StringRef ns,
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llvm::Optional<llvm::StringRef> fname = llvm::None,
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const char *c = nullptr, unsigned short int line = 0,
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unsigned short int col = 0, bool knownLocation = true)
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: ns(ns), filename(fname), c(c), line(line), col(col),
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knownLocation(knownLocation){};
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Location clone();
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Location clone() const;
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mlir::Location toMLIRLocation(SereneContext &ctx);
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/// Returns an unknown location for the given \p ns.
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static Location UnknownLocation(llvm::StringRef ns) {
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return Location(ns, llvm::None, nullptr, 0, 0, false);
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}
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};
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class LocationRange {
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public:
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Location start;
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Location end;
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LocationRange() = default;
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LocationRange(Location _start) : start(_start), end(_start){};
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LocationRange(Location _start, Location _end) : start(_start), end(_end){};
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// LocationRange(const LocationRange &);
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bool isKnownLocation() { return start.knownLocation; };
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static LocationRange UnknownLocation(llvm::StringRef ns) {
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return LocationRange(Location::UnknownLocation(ns));
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}
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};
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void incLocation(Location &, const char *);
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void decLocation(Location &, const char *);
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} // namespace reader
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} // namespace serene
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#endif
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