mirror of
https://github.com/carbon-language/carbon-lang.git
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Jon Meow
70797e8bf8
This does a mass rename of:
- `SourceLoc()` -> `source_loc()` for property naming
- `loc` -> `source_loc_` for underscore+consistency
- Generally changing function args to `source_loc` for consistency
- `Tag()` -> `kind()` for property naming and `Kind` parity
- `tag` -> `kind_` for underscore
Also renames `Pos` and `Results` on `Action`. These are a bit of an exception in that most base classes only have `Tag` and maybe `SourceLoc`, whereas `Action` has a little more. I felt okay having `source_loc()` and `kind()` on the base class where children do `Exp()` and the like, but it felt weird to me to mix it on the same class.
The reason for doing this cross-class in one PR is so that I can do it efficiently with a global replace in the codebase, rather than e.g. changing `Expression` but having to read through compiler errors to determine where it's calling `Expression`'s `Tag` versus a different `Tag`. The end result should be equivalent.
62 lines
2.0 KiB
C++
62 lines
2.0 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#ifndef EXECUTABLE_SEMANTICS_INTERPRETER_MEMORY_H_
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#define EXECUTABLE_SEMANTICS_INTERPRETER_MEMORY_H_
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#include <vector>
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#include "common/ostream.h"
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#include "executable_semantics/interpreter/address.h"
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#include "executable_semantics/interpreter/value.h"
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#include "llvm/Support/Compiler.h"
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namespace Carbon {
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// A Heap represents the abstract machine's dynamically allocated memory.
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class Heap {
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public:
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// Constructs an empty Heap.
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explicit Heap(Nonnull<Arena*> arena) : arena(arena){};
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Heap(const Heap&) = delete;
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Heap& operator=(const Heap&) = delete;
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// Returns the value at the given address in the heap after
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// checking that it is alive.
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auto Read(const Address& a, SourceLocation source_loc)
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-> Nonnull<const Value*>;
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// Writes the given value at the address in the heap after
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// checking that the address is alive.
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void Write(const Address& a, Nonnull<const Value*> v,
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SourceLocation source_loc);
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// Put the given value on the heap and mark it as alive.
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auto AllocateValue(Nonnull<const Value*> v) -> Address;
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// Marks the object at this address, and all of its sub-objects, as dead.
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void Deallocate(const Address& address);
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// Print the value at the given address to the stream `out`.
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void PrintAddress(const Address& a, llvm::raw_ostream& out) const;
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// Print all the values on the heap to the stream `out`.
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void Print(llvm::raw_ostream& out) const;
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LLVM_DUMP_METHOD void Dump() const { Print(llvm::errs()); }
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private:
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// Signal an error if the address is no longer alive.
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void CheckAlive(const Address& address, SourceLocation source_loc);
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Nonnull<Arena*> arena;
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std::vector<Nonnull<const Value*>> values;
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std::vector<bool> alive;
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};
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} // namespace Carbon
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#endif // EXECUTABLE_SEMANTICS_INTERPRETER_MEMORY_H_
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