mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-02 17:52:58 +01:00
Richard Smith
2717dc1097
`ContinuationValue` is the only dependency that `Value`s have on implementation details of the interpreter, and removing this allows `Value` to be moved from interpreter/ to ast/, as [discussed on #explorer](https://discord.com/channels/655572317891461132/763516049710120960/1081326038858092624).
49 lines
1.3 KiB
C++
49 lines
1.3 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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#include "explorer/interpreter/stack_fragment.h"
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#include "common/check.h"
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#include "llvm/ADT/StringExtras.h"
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namespace Carbon {
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StackFragment::~StackFragment() {
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CARBON_CHECK(reversed_todo_.empty())
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<< "All StackFragments must be empty before the Carbon program ends.";
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}
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void StackFragment::StoreReversed(
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std::vector<std::unique_ptr<Action>> reversed_todo) {
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CARBON_CHECK(reversed_todo_.empty());
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reversed_todo_ = std::move(reversed_todo);
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}
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void StackFragment::RestoreTo(Stack<std::unique_ptr<Action>>& todo) {
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while (!reversed_todo_.empty()) {
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todo.Push(std::move(reversed_todo_.back()));
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reversed_todo_.pop_back();
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}
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}
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void StackFragment::Clear() {
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// We destroy the underlying Actions explicitly to ensure they're
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// destroyed in the correct order.
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for (auto& action : reversed_todo_) {
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action.reset();
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}
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reversed_todo_.clear();
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}
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void StackFragment::Print(llvm::raw_ostream& out) const {
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out << "{";
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llvm::ListSeparator sep(" :: ");
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for (const std::unique_ptr<Action>& action : reversed_todo_) {
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out << sep << *action;
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}
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out << "}";
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}
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} // namespace Carbon
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