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// Copyright (C) 2020 Free Software Foundation, Inc.
// This file is part of GCC.
// GCC is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 3, or (at your option) any later
// version.
// GCC is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
// You should have received a copy of the GNU General Public License
// along with GCC; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
#ifndef RUST_AST_LOWER_BLOCK
#define RUST_AST_LOWER_BLOCK
#include "rust-diagnostics.h"
#include "rust-ast-lower-base.h"
namespace Rust {
namespace HIR {
class ASTLoweringBlock : public ASTLoweringBase
{
public:
static HIR::BlockExpr *translate (AST::BlockExpr *expr, bool *terminated)
{
ASTLoweringBlock resolver;
expr->accept_vis (resolver);
if (resolver.translated != nullptr)
{
resolver.mappings->insert_hir_expr (
resolver.translated->get_mappings ().get_crate_num (),
resolver.translated->get_mappings ().get_hirid (),
resolver.translated);
}
*terminated = resolver.terminated;
return resolver.translated;
}
~ASTLoweringBlock () {}
void visit (AST::BlockExpr &expr);
private:
ASTLoweringBlock ()
: ASTLoweringBase (), translated (nullptr), terminated (false)
{}
HIR::BlockExpr *translated;
bool terminated;
};
class ASTLoweringIfBlock : public ASTLoweringBase
{
public:
static HIR::IfExpr *translate (AST::IfExpr *expr, bool *terminated)
{
ASTLoweringIfBlock resolver;
expr->accept_vis (resolver);
if (resolver.translated != nullptr)
{
resolver.mappings->insert_hir_expr (
resolver.translated->get_mappings ().get_crate_num (),
resolver.translated->get_mappings ().get_hirid (),
resolver.translated);
}
*terminated = resolver.terminated;
return resolver.translated;
}
~ASTLoweringIfBlock () {}
void visit (AST::IfExpr &expr);
void visit (AST::IfExprConseqElse &expr);
void visit (AST::IfExprConseqIf &expr);
private:
ASTLoweringIfBlock ()
: ASTLoweringBase (), translated (nullptr), terminated (false)
{}
HIR::IfExpr *translated;
bool terminated;
};
class ASTLoweringExprWithBlock : public ASTLoweringBase
{
public:
static HIR::ExprWithBlock *translate (AST::ExprWithBlock *expr,
bool *terminated)
{
ASTLoweringExprWithBlock resolver;
expr->accept_vis (resolver);
if (resolver.translated != nullptr)
{
resolver.mappings->insert_hir_expr (
resolver.translated->get_mappings ().get_crate_num (),
resolver.translated->get_mappings ().get_hirid (),
resolver.translated);
}
*terminated = resolver.terminated;
return resolver.translated;
}
~ASTLoweringExprWithBlock () {}
void visit (AST::IfExpr &expr)
{
translated = ASTLoweringIfBlock::translate (&expr, &terminated);
}
void visit (AST::IfExprConseqElse &expr)
{
translated = ASTLoweringIfBlock::translate (&expr, &terminated);
}
void visit (AST::IfExprConseqIf &expr)
{
translated = ASTLoweringIfBlock::translate (&expr, &terminated);
}
void visit (AST::BlockExpr &expr)
{
translated = ASTLoweringBlock::translate (&expr, &terminated);
}
private:
ASTLoweringExprWithBlock ()
: ASTLoweringBase (), translated (nullptr), terminated (false)
{}
HIR::ExprWithBlock *translated;
bool terminated;
};
} // namespace HIR
} // namespace Rust
#endif // RUST_AST_LOWER_BLOCK
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