mirror of
https://github.com/carbon-language/carbon-lang.git
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Jon Meow
8fccecadeb
- Switch code to llvm::raw_ostream as part of standardizing output forms.
- Preferring llvm::raw_ostream over std::ostream because other tooling code should be expected to rely on llvm more closely, and an overall preference towards library consistency.
- There are a couple spots in syntax/ that still use std streams, but I'd prefer to take a separate PR to see how best to address those.
- std::boolalpha doesn't work with llvm, so I've implemented equivalent in a couple places (not enough that it felt like worth making a helper function).
- Implement Print(ostream) as consistently as we can, as an instance member.
- This facilitates the use of the common/ostream.h template to provide operators.
- Preferring this approach so that Print is easily accessible via gdb, per suggestion on #executable-semantics.
- Switch code currently calling `type->Print(ostream)` to instead do `ostream << *type`.
- Remove the unused `PrintTypeEnv`, nothing used it and the declaration didn't match the definition.
98 lines
2.3 KiB
C++
98 lines
2.3 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 "executable_semantics/interpreter/action.h"
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#include <iterator>
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#include <map>
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#include <optional>
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#include <utility>
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#include <vector>
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#include "executable_semantics/ast/expression.h"
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#include "executable_semantics/ast/function_definition.h"
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#include "executable_semantics/interpreter/stack.h"
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namespace Carbon {
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auto Action::MakeLValAction(const Expression* e) -> Action* {
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auto* act = new Action();
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act->value = LValAction({.exp = e});
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return act;
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}
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auto Action::MakeExpressionAction(const Expression* e) -> Action* {
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auto* act = new Action();
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act->value = ExpressionAction({.exp = e});
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return act;
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}
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auto Action::MakeStatementAction(const Statement* s) -> Action* {
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auto* act = new Action();
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act->value = StatementAction({.stmt = s});
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return act;
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}
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auto Action::MakeValAction(const Value* v) -> Action* {
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auto* act = new Action();
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act->value = ValAction({.val = v});
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return act;
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}
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auto Action::GetLValAction() const -> const LValAction& {
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return std::get<LValAction>(value);
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}
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auto Action::GetExpressionAction() const -> const ExpressionAction& {
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return std::get<ExpressionAction>(value);
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}
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auto Action::GetStatementAction() const -> const StatementAction& {
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return std::get<StatementAction>(value);
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}
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auto Action::GetValAction() const -> const ValAction& {
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return std::get<ValAction>(value);
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}
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void Action::Print(llvm::raw_ostream& out) const {
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switch (tag()) {
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case ActionKind::LValAction:
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out << *GetLValAction().exp;
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break;
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case ActionKind::ExpressionAction:
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out << *GetExpressionAction().exp;
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break;
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case ActionKind::StatementAction:
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GetStatementAction().stmt->PrintDepth(1, out);
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break;
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case ActionKind::ValAction:
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out << *GetValAction().val;
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break;
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}
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out << "<" << pos << ">";
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if (results.size() > 0) {
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out << "(";
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for (auto& result : results) {
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if (result) {
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out << *result;
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}
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out << ",";
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}
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out << ")";
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}
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}
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void Action::PrintList(Stack<Action*> ls, llvm::raw_ostream& out) {
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if (!ls.IsEmpty()) {
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out << *ls.Pop();
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if (!ls.IsEmpty()) {
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out << " :: ";
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PrintList(ls, out);
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}
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}
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}
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} // namespace Carbon
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