@@ -94,6 +94,7 @@ GRS_OBJS = \
rust/rust-ast-lower-base.o \
rust/rust-ast-lower-pattern.o \
rust/rust-ast-lower-item.o \
+ rust/rust-ast-lower-expr.o \
rust/rust-early-name-resolver.o \
rust/rust-name-resolver.o \
rust/rust-ast-resolve.o \
@@ -2134,8 +2134,6 @@ struct ClosureParam
private:
std::vector<Attribute> outer_attrs;
std::unique_ptr<Pattern> pattern;
-
- // bool has_type_given;
std::unique_ptr<Type> type;
Location locus;
@@ -2202,19 +2200,19 @@ public:
const std::vector<Attribute> &get_outer_attrs () const { return outer_attrs; }
std::vector<Attribute> &get_outer_attrs () { return outer_attrs; }
- // TODO: is this better? Or is a "vis_block" better?
std::unique_ptr<Pattern> &get_pattern ()
{
rust_assert (pattern != nullptr);
return pattern;
}
- // TODO: is this better? Or is a "vis_block" better?
std::unique_ptr<Type> &get_type ()
{
rust_assert (has_type_given ());
return type;
}
+
+ Location get_locus () const { return locus; }
};
// Base closure definition expression AST node - abstract
@@ -2248,6 +2246,8 @@ public:
{
outer_attrs = std::move (new_attrs);
}
+
+ bool get_has_move () const { return has_move; }
};
// Represents a non-type-specified closure expression AST node
@@ -2307,7 +2307,6 @@ public:
return closure_inner == nullptr;
}
- // TODO: is this better? Or is a "vis_block" better?
std::unique_ptr<Expr> &get_definition_expr ()
{
rust_assert (closure_inner != nullptr);
@@ -57,8 +57,7 @@ public:
// Empty visit for unused Expression HIR nodes.
void visit (HIR::PathInExpression &) override {}
void visit (HIR::QualifiedPathInExpression &) override {}
- void visit (HIR::ClosureExprInner &) override {}
- void visit (HIR::ClosureExprInnerTyped &) override {}
+ void visit (HIR::ClosureExpr &) override {}
void visit (HIR::StructExprFieldIdentifier &) override {}
void visit (HIR::StructExprFieldIdentifierValue &) override {}
void visit (HIR::StructExprFieldIndexValue &) override {}
@@ -146,8 +145,7 @@ public:
// Empty visit for unused Expression HIR nodes.
void visit (HIR::PathInExpression &) override {}
void visit (HIR::QualifiedPathInExpression &) override {}
- void visit (HIR::ClosureExprInner &) override {}
- void visit (HIR::ClosureExprInnerTyped &) override {}
+ void visit (HIR::ClosureExpr &) override {}
void visit (HIR::StructExprFieldIdentifier &) override {}
void visit (HIR::StructExprFieldIdentifierValue &) override {}
void visit (HIR::StructExprFieldIndexValue &) override {}
@@ -2803,5 +2803,11 @@ CompileExpr::visit (HIR::ArrayIndexExpr &expr)
expr.get_locus ());
}
+void
+CompileExpr::visit (HIR::ClosureExpr &expr)
+{
+ gcc_unreachable ();
+}
+
} // namespace Compile
} // namespace Rust
@@ -67,10 +67,9 @@ public:
void visit (HIR::RangeToExpr &expr) override;
void visit (HIR::RangeFullExpr &expr) override;
void visit (HIR::RangeFromToInclExpr &expr) override;
+ void visit (HIR::ClosureExpr &expr) override;
// TODO
- void visit (HIR::ClosureExprInner &) override {}
- void visit (HIR::ClosureExprInnerTyped &) override {}
void visit (HIR::ErrorPropagationExpr &) override {}
void visit (HIR::RangeToInclExpr &) override {}
void visit (HIR::ForLoopExpr &) override {}
@@ -426,7 +426,7 @@ PrivacyReporter::visit (HIR::FieldAccessExpr &expr)
}
void
-PrivacyReporter::visit (HIR::ClosureExprInner &expr)
+PrivacyReporter::visit (HIR::ClosureExpr &expr)
{
// Not handled yet
}
@@ -442,12 +442,6 @@ PrivacyReporter::visit (HIR::BlockExpr &expr)
last_expr->accept_vis (*this);
}
-void
-PrivacyReporter::visit (HIR::ClosureExprInnerTyped &expr)
-{
- // Not handled yet
-}
-
void
PrivacyReporter::visit (HIR::ContinueExpr &expr)
{}
@@ -83,8 +83,7 @@ types
virtual void visit (HIR::QualifiedPathInExpression &expr);
virtual void visit (HIR::PathInExpression &expr);
- virtual void visit (HIR::ClosureExprInnerTyped &);
- virtual void visit (HIR::ClosureExprInner &expr);
+ virtual void visit (HIR::ClosureExpr &expr);
virtual void visit (HIR::StructExprStructFields &);
virtual void visit (HIR::StructExprStruct &);
virtual void visit (HIR::LiteralExpr &expr);
@@ -382,7 +382,7 @@ ConstChecker::visit (FieldAccessExpr &expr)
}
void
-ConstChecker::visit (ClosureExprInner &expr)
+ConstChecker::visit (ClosureExpr &expr)
{}
void
@@ -395,10 +395,6 @@ ConstChecker::visit (BlockExpr &expr)
expr.get_final_expr ()->accept_vis (*this);
}
-void
-ConstChecker::visit (ClosureExprInnerTyped &expr)
-{}
-
void
ConstChecker::visit (ContinueExpr &expr)
{}
@@ -111,9 +111,8 @@ private:
virtual void visit (CallExpr &expr) override;
virtual void visit (MethodCallExpr &expr) override;
virtual void visit (FieldAccessExpr &expr) override;
- virtual void visit (ClosureExprInner &expr) override;
+ virtual void visit (ClosureExpr &expr) override;
virtual void visit (BlockExpr &expr) override;
- virtual void visit (ClosureExprInnerTyped &expr) override;
virtual void visit (ContinueExpr &expr) override;
virtual void visit (BreakExpr &expr) override;
virtual void visit (RangeFromToExpr &expr) override;
@@ -453,7 +453,7 @@ UnsafeChecker::visit (FieldAccessExpr &expr)
}
void
-UnsafeChecker::visit (ClosureExprInner &expr)
+UnsafeChecker::visit (ClosureExpr &expr)
{}
void
@@ -466,10 +466,6 @@ UnsafeChecker::visit (BlockExpr &expr)
expr.get_final_expr ()->accept_vis (*this);
}
-void
-UnsafeChecker::visit (ClosureExprInnerTyped &expr)
-{}
-
void
UnsafeChecker::visit (ContinueExpr &expr)
{}
@@ -88,9 +88,8 @@ private:
virtual void visit (CallExpr &expr) override;
virtual void visit (MethodCallExpr &expr) override;
virtual void visit (FieldAccessExpr &expr) override;
- virtual void visit (ClosureExprInner &expr) override;
+ virtual void visit (ClosureExpr &expr) override;
virtual void visit (BlockExpr &expr) override;
- virtual void visit (ClosureExprInnerTyped &expr) override;
virtual void visit (ContinueExpr &expr) override;
virtual void visit (BreakExpr &expr) override;
virtual void visit (RangeFromToExpr &expr) override;
@@ -313,6 +313,8 @@ protected:
HIR::Literal lower_literal (const AST::Literal &literal);
HIR::ExternBlock *lower_extern_block (AST::ExternBlock &extern_block);
+
+ HIR::ClosureParam lower_closure_param (AST::ClosureParam ¶m);
};
} // namespace HIR
new file mode 100644
@@ -0,0 +1,810 @@
+// Copyright (C) 2020-2022 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/>.
+
+#include "rust-ast-lower-expr.h"
+#include "rust-ast-lower-base.h"
+#include "rust-ast-lower-block.h"
+#include "rust-ast-lower-struct-field-expr.h"
+#include "rust-ast-lower-pattern.h"
+#include "rust-ast-lower-type.h"
+
+namespace Rust {
+namespace HIR {
+
+ASTLoweringExpr::ASTLoweringExpr ()
+ : ASTLoweringBase (), translated (nullptr), translated_array_elems (nullptr),
+ terminated (false)
+{}
+
+HIR::Expr *
+ASTLoweringExpr::translate (AST::Expr *expr, bool *terminated)
+{
+ ASTLoweringExpr resolver;
+ expr->accept_vis (resolver);
+ if (resolver.translated == nullptr)
+ {
+ rust_fatal_error (expr->get_locus (), "Failed to lower expr: [%s]",
+ expr->as_string ().c_str ());
+ return nullptr;
+ }
+
+ resolver.mappings->insert_hir_expr (resolver.translated);
+ resolver.mappings->insert_location (
+ resolver.translated->get_mappings ().get_hirid (), expr->get_locus ());
+
+ if (terminated != nullptr)
+ *terminated = resolver.terminated;
+
+ return resolver.translated;
+}
+
+void
+ASTLoweringExpr::visit (AST::TupleIndexExpr &expr)
+{
+ HIR::Expr *tuple_expr
+ = ASTLoweringExpr::translate (expr.get_tuple_expr ().get (), &terminated);
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ translated
+ = new HIR::TupleIndexExpr (mapping, std::unique_ptr<HIR::Expr> (tuple_expr),
+ expr.get_tuple_index (), expr.get_outer_attrs (),
+ expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::TupleExpr &expr)
+{
+ std::vector<std::unique_ptr<HIR::Expr> > tuple_elements;
+ for (auto &e : expr.get_tuple_elems ())
+ {
+ HIR::Expr *t = ASTLoweringExpr::translate (e.get ());
+ tuple_elements.push_back (std::unique_ptr<HIR::Expr> (t));
+ }
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ translated
+ = new HIR::TupleExpr (std::move (mapping), std::move (tuple_elements),
+ expr.get_inner_attrs (), expr.get_outer_attrs (),
+ expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::IfExpr &expr)
+{
+ translated = ASTLoweringIfBlock::translate (&expr, &terminated);
+}
+
+void
+ASTLoweringExpr::visit (AST::IfExprConseqElse &expr)
+{
+ translated = ASTLoweringIfBlock::translate (&expr, &terminated);
+}
+
+void
+ASTLoweringExpr::visit (AST::IfExprConseqIf &expr)
+{
+ translated = ASTLoweringIfBlock::translate (&expr, &terminated);
+}
+
+void
+ASTLoweringExpr::visit (AST::BlockExpr &expr)
+{
+ translated = ASTLoweringBlock::translate (&expr, &terminated);
+}
+
+void
+ASTLoweringExpr::visit (AST::UnsafeBlockExpr &expr)
+{
+ translated = ASTLoweringBlock::translate (&expr, &terminated);
+}
+
+void
+ASTLoweringExpr::visit (AST::PathInExpression &expr)
+{
+ translated = ASTLowerPathInExpression::translate (&expr);
+}
+
+void
+ASTLoweringExpr::visit (AST::QualifiedPathInExpression &expr)
+{
+ translated = ASTLowerQualPathInExpression::translate (&expr);
+}
+
+void
+ASTLoweringExpr::visit (AST::ReturnExpr &expr)
+{
+ terminated = true;
+ HIR::Expr *return_expr
+ = expr.has_returned_expr ()
+ ? ASTLoweringExpr::translate (expr.get_returned_expr ().get ())
+ : nullptr;
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ translated = new HIR::ReturnExpr (mapping, expr.get_locus (),
+ std::unique_ptr<HIR::Expr> (return_expr));
+}
+
+void
+ASTLoweringExpr::visit (AST::CallExpr &expr)
+{
+ HIR::Expr *func
+ = ASTLoweringExpr::translate (expr.get_function_expr ().get ());
+
+ auto const &in_params = expr.get_params ();
+ std::vector<std::unique_ptr<HIR::Expr> > params;
+ for (auto ¶m : in_params)
+ {
+ auto trans = ASTLoweringExpr::translate (param.get ());
+ params.push_back (std::unique_ptr<HIR::Expr> (trans));
+ }
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (
+ crate_num, UNKNOWN_NODEID /* this can map back to the AST*/,
+ mappings->get_next_hir_id (crate_num), UNKNOWN_LOCAL_DEFID);
+
+ translated = new HIR::CallExpr (mapping, std::unique_ptr<HIR::Expr> (func),
+ std::move (params), expr.get_outer_attrs (),
+ expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::MethodCallExpr &expr)
+{
+ HIR::PathExprSegment method_path
+ = lower_path_expr_seg (expr.get_method_name ());
+
+ HIR::Expr *receiver
+ = ASTLoweringExpr::translate (expr.get_receiver_expr ().get ());
+
+ auto const &in_params = expr.get_params ();
+ std::vector<std::unique_ptr<HIR::Expr> > params;
+ for (auto ¶m : in_params)
+ {
+ auto trans = ASTLoweringExpr::translate (param.get ());
+ params.push_back (std::unique_ptr<HIR::Expr> (trans));
+ }
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ translated
+ = new HIR::MethodCallExpr (mapping, std::unique_ptr<HIR::Expr> (receiver),
+ method_path, std::move (params),
+ expr.get_outer_attrs (), expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::AssignmentExpr &expr)
+{
+ HIR::Expr *lhs = ASTLoweringExpr::translate (expr.get_left_expr ().get ());
+ HIR::Expr *rhs = ASTLoweringExpr::translate (expr.get_right_expr ().get ());
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ translated
+ = new HIR::AssignmentExpr (mapping, std::unique_ptr<HIR::Expr> (lhs),
+ std::unique_ptr<HIR::Expr> (rhs),
+ expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::IdentifierExpr &expr)
+{
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping1 (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+ Analysis::NodeMapping mapping2 (mapping1);
+
+ HIR::PathIdentSegment ident_seg (expr.get_ident ());
+ HIR::PathExprSegment seg (mapping1, ident_seg, expr.get_locus (),
+ HIR::GenericArgs::create_empty ());
+ translated = new HIR::PathInExpression (mapping2, {seg}, expr.get_locus (),
+ false, expr.get_outer_attrs ());
+}
+
+void
+ASTLoweringExpr::visit (AST::ArrayExpr &expr)
+{
+ expr.get_array_elems ()->accept_vis (*this);
+ rust_assert (translated_array_elems != nullptr);
+ HIR::ArrayElems *elems = translated_array_elems;
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ translated
+ = new HIR::ArrayExpr (mapping, std::unique_ptr<HIR::ArrayElems> (elems),
+ expr.get_inner_attrs (), expr.get_outer_attrs (),
+ expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::ArrayIndexExpr &expr)
+{
+ HIR::Expr *array_expr
+ = ASTLoweringExpr::translate (expr.get_array_expr ().get ());
+ HIR::Expr *array_index_expr
+ = ASTLoweringExpr::translate (expr.get_index_expr ().get ());
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ translated
+ = new HIR::ArrayIndexExpr (mapping, std::unique_ptr<HIR::Expr> (array_expr),
+ std::unique_ptr<HIR::Expr> (array_index_expr),
+ expr.get_outer_attrs (), expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::ArrayElemsValues &elems)
+{
+ std::vector<std::unique_ptr<HIR::Expr> > elements;
+ for (auto &elem : elems.get_values ())
+ {
+ HIR::Expr *translated_elem = ASTLoweringExpr::translate (elem.get ());
+ elements.push_back (std::unique_ptr<HIR::Expr> (translated_elem));
+ }
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (mappings->get_current_crate (),
+ elems.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ translated_array_elems
+ = new HIR::ArrayElemsValues (mapping, std::move (elements));
+}
+
+void
+ASTLoweringExpr::visit (AST::ArrayElemsCopied &elems)
+{
+ HIR::Expr *element
+ = ASTLoweringExpr::translate (elems.get_elem_to_copy ().get ());
+ HIR::Expr *num_copies
+ = ASTLoweringExpr::translate (elems.get_num_copies ().get ());
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (mappings->get_current_crate (),
+ elems.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ translated_array_elems
+ = new HIR::ArrayElemsCopied (mapping, std::unique_ptr<HIR::Expr> (element),
+ std::unique_ptr<HIR::Expr> (num_copies));
+}
+
+void
+ASTLoweringExpr::visit (AST::LiteralExpr &expr)
+{
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ HIR::Literal l = lower_literal (expr.get_literal ());
+ translated = new HIR::LiteralExpr (mapping, std::move (l), expr.get_locus (),
+ expr.get_outer_attrs ());
+}
+
+void
+ASTLoweringExpr::visit (AST::ArithmeticOrLogicalExpr &expr)
+{
+ HIR::Expr *lhs = ASTLoweringExpr::translate (expr.get_left_expr ().get ());
+ rust_assert (lhs != nullptr);
+ HIR::Expr *rhs = ASTLoweringExpr::translate (expr.get_right_expr ().get ());
+ rust_assert (rhs != nullptr);
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ translated = new HIR::ArithmeticOrLogicalExpr (
+ mapping, std::unique_ptr<HIR::Expr> (lhs), std::unique_ptr<HIR::Expr> (rhs),
+ expr.get_expr_type (), expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::ComparisonExpr &expr)
+{
+ HIR::Expr *lhs = ASTLoweringExpr::translate (expr.get_left_expr ().get ());
+ rust_assert (lhs != nullptr);
+ HIR::Expr *rhs = ASTLoweringExpr::translate (expr.get_right_expr ().get ());
+ rust_assert (rhs != nullptr);
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ translated
+ = new HIR::ComparisonExpr (mapping, std::unique_ptr<HIR::Expr> (lhs),
+ std::unique_ptr<HIR::Expr> (rhs),
+ expr.get_expr_type (), expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::LazyBooleanExpr &expr)
+{
+ HIR::Expr *lhs = ASTLoweringExpr::translate (expr.get_left_expr ().get ());
+ rust_assert (lhs != nullptr);
+ HIR::Expr *rhs = ASTLoweringExpr::translate (expr.get_right_expr ().get ());
+ rust_assert (rhs != nullptr);
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ translated
+ = new HIR::LazyBooleanExpr (mapping, std::unique_ptr<HIR::Expr> (lhs),
+ std::unique_ptr<HIR::Expr> (rhs),
+ expr.get_expr_type (), expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::NegationExpr &expr)
+{
+ HIR::Expr *negated_value
+ = ASTLoweringExpr::translate (expr.get_negated_expr ().get ());
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+ translated
+ = new HIR::NegationExpr (mapping,
+ std::unique_ptr<HIR::Expr> (negated_value),
+ expr.get_expr_type (), expr.get_outer_attrs (),
+ expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::TypeCastExpr &expr)
+{
+ HIR::Expr *expr_to_cast_to
+ = ASTLoweringExpr::translate (expr.get_casted_expr ().get ());
+ HIR::Type *type_to_cast_to
+ = lower_type_no_bounds (expr.get_type_to_cast_to ().get ());
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ translated
+ = new HIR::TypeCastExpr (mapping,
+ std::unique_ptr<HIR::Expr> (expr_to_cast_to),
+ std::unique_ptr<HIR::Type> (type_to_cast_to),
+ expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::CompoundAssignmentExpr &expr)
+{
+ ArithmeticOrLogicalOperator op;
+ switch (expr.get_expr_type ())
+ {
+ case CompoundAssignmentOperator::ADD:
+ op = ArithmeticOrLogicalOperator::ADD;
+ break;
+ case CompoundAssignmentOperator::SUBTRACT:
+ op = ArithmeticOrLogicalOperator::SUBTRACT;
+ break;
+ case CompoundAssignmentOperator::MULTIPLY:
+ op = ArithmeticOrLogicalOperator::MULTIPLY;
+ break;
+ case CompoundAssignmentOperator::DIVIDE:
+ op = ArithmeticOrLogicalOperator::DIVIDE;
+ break;
+ case CompoundAssignmentOperator::MODULUS:
+ op = ArithmeticOrLogicalOperator::MODULUS;
+ break;
+ case CompoundAssignmentOperator::BITWISE_AND:
+ op = ArithmeticOrLogicalOperator::BITWISE_AND;
+ break;
+ case CompoundAssignmentOperator::BITWISE_OR:
+ op = ArithmeticOrLogicalOperator::BITWISE_OR;
+ break;
+ case CompoundAssignmentOperator::BITWISE_XOR:
+ op = ArithmeticOrLogicalOperator::BITWISE_XOR;
+ break;
+ case CompoundAssignmentOperator::LEFT_SHIFT:
+ op = ArithmeticOrLogicalOperator::LEFT_SHIFT;
+ break;
+ case CompoundAssignmentOperator::RIGHT_SHIFT:
+ op = ArithmeticOrLogicalOperator::RIGHT_SHIFT;
+ break;
+ default:
+ gcc_unreachable ();
+ }
+
+ HIR::Expr *asignee_expr
+ = ASTLoweringExpr::translate (expr.get_left_expr ().get ());
+ HIR::Expr *value = ASTLoweringExpr::translate (expr.get_right_expr ().get ());
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ translated = new HIR::CompoundAssignmentExpr (
+ mapping, std::unique_ptr<HIR::Expr> (asignee_expr),
+ std::unique_ptr<HIR::Expr> (value), op, expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::StructExprStruct &struct_expr)
+{
+ HIR::PathInExpression *path
+ = ASTLowerPathInExpression::translate (&struct_expr.get_struct_name ());
+ HIR::PathInExpression copied_path (*path);
+ delete path;
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, struct_expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ translated = new HIR::StructExprStruct (mapping, copied_path,
+ struct_expr.get_inner_attrs (),
+ struct_expr.get_outer_attrs (),
+ struct_expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::StructExprStructFields &struct_expr)
+{
+ // bit of a hack for now
+ HIR::PathInExpression *path
+ = ASTLowerPathInExpression::translate (&struct_expr.get_struct_name ());
+ HIR::PathInExpression copied_path (*path);
+ delete path;
+
+ HIR::StructBase *base = nullptr;
+ if (struct_expr.has_struct_base ())
+ {
+ HIR::Expr *translated_base = ASTLoweringExpr::translate (
+ struct_expr.get_struct_base ().get_base_struct ().get ());
+ base = new HIR::StructBase (std::unique_ptr<HIR::Expr> (translated_base));
+ }
+
+ auto const &in_fields = struct_expr.get_fields ();
+ std::vector<std::unique_ptr<HIR::StructExprField> > fields;
+ for (auto &field : in_fields)
+ {
+ HIR::StructExprField *translated
+ = ASTLowerStructExprField::translate (field.get ());
+ fields.push_back (std::unique_ptr<HIR::StructExprField> (translated));
+ }
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, struct_expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ translated
+ = new HIR::StructExprStructFields (mapping, copied_path, std::move (fields),
+ struct_expr.get_locus (), base,
+ struct_expr.get_inner_attrs (),
+ struct_expr.get_outer_attrs ());
+}
+
+void
+ASTLoweringExpr::visit (AST::GroupedExpr &expr)
+{
+ HIR::Expr *paren_expr
+ = ASTLoweringExpr::translate (expr.get_expr_in_parens ().get ());
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ translated
+ = new HIR::GroupedExpr (mapping, std::unique_ptr<HIR::Expr> (paren_expr),
+ expr.get_inner_attrs (), expr.get_outer_attrs (),
+ expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::FieldAccessExpr &expr)
+{
+ HIR::Expr *receiver
+ = ASTLoweringExpr::translate (expr.get_receiver_expr ().get ());
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+ translated
+ = new HIR::FieldAccessExpr (mapping, std::unique_ptr<HIR::Expr> (receiver),
+ expr.get_field_name (), expr.get_outer_attrs (),
+ expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::LoopExpr &expr)
+{
+ translated = ASTLoweringExprWithBlock::translate (&expr, &terminated);
+}
+
+void
+ASTLoweringExpr::visit (AST::WhileLoopExpr &expr)
+{
+ translated = ASTLoweringExprWithBlock::translate (&expr, &terminated);
+}
+
+void
+ASTLoweringExpr::visit (AST::ForLoopExpr &expr)
+{
+ translated = ASTLoweringExprWithBlock::translate (&expr, &terminated);
+}
+
+void
+ASTLoweringExpr::visit (AST::BreakExpr &expr)
+{
+ HIR::Lifetime break_label = lower_lifetime (expr.get_label ());
+ HIR::Expr *break_expr
+ = expr.has_break_expr ()
+ ? ASTLoweringExpr::translate (expr.get_break_expr ().get ())
+ : nullptr;
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ translated
+ = new HIR::BreakExpr (mapping, expr.get_locus (), std ::move (break_label),
+ std::unique_ptr<HIR::Expr> (break_expr),
+ expr.get_outer_attrs ());
+}
+
+void
+ASTLoweringExpr::visit (AST::ContinueExpr &expr)
+{
+ HIR::Lifetime break_label = lower_lifetime (expr.get_label ());
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ translated
+ = new HIR::ContinueExpr (mapping, expr.get_locus (),
+ std ::move (break_label), expr.get_outer_attrs ());
+}
+
+void
+ASTLoweringExpr::visit (AST::BorrowExpr &expr)
+{
+ HIR::Expr *borrow_lvalue
+ = ASTLoweringExpr::translate (expr.get_borrowed_expr ().get ());
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ HIR::BorrowExpr *borrow_expr
+ = new HIR::BorrowExpr (mapping, std::unique_ptr<HIR::Expr> (borrow_lvalue),
+ expr.get_is_mut () ? Mutability::Mut
+ : Mutability::Imm,
+ expr.get_outer_attrs (), expr.get_locus ());
+
+ if (expr.get_is_double_borrow ())
+ {
+ NodeId artifical_bouble_borrow_id = mappings->get_next_node_id ();
+ Analysis::NodeMapping mapping (crate_num, artifical_bouble_borrow_id,
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ borrow_expr
+ = new HIR::BorrowExpr (mapping,
+ std::unique_ptr<HIR::Expr> (borrow_expr),
+ expr.get_is_mut () ? Mutability::Mut
+ : Mutability::Imm,
+ expr.get_outer_attrs (), expr.get_locus ());
+ }
+
+ translated = borrow_expr;
+}
+
+void
+ASTLoweringExpr::visit (AST::DereferenceExpr &expr)
+{
+ HIR::Expr *dref_lvalue
+ = ASTLoweringExpr::translate (expr.get_dereferenced_expr ().get ());
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ translated
+ = new HIR::DereferenceExpr (mapping,
+ std::unique_ptr<HIR::Expr> (dref_lvalue),
+ expr.get_outer_attrs (), expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::MatchExpr &expr)
+{
+ translated = ASTLoweringExprWithBlock::translate (&expr, &terminated);
+}
+
+void
+ASTLoweringExpr::visit (AST::RangeFromToExpr &expr)
+{
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ HIR::Expr *range_from
+ = ASTLoweringExpr::translate (expr.get_from_expr ().get ());
+ HIR::Expr *range_to = ASTLoweringExpr::translate (expr.get_to_expr ().get ());
+
+ translated
+ = new HIR::RangeFromToExpr (mapping,
+ std::unique_ptr<HIR::Expr> (range_from),
+ std::unique_ptr<HIR::Expr> (range_to),
+ expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::RangeFromExpr &expr)
+{
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ HIR::Expr *range_from
+ = ASTLoweringExpr::translate (expr.get_from_expr ().get ());
+
+ translated
+ = new HIR::RangeFromExpr (mapping, std::unique_ptr<HIR::Expr> (range_from),
+ expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::RangeToExpr &expr)
+{
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ HIR::Expr *range_to = ASTLoweringExpr::translate (expr.get_to_expr ().get ());
+
+ translated
+ = new HIR::RangeToExpr (mapping, std::unique_ptr<HIR::Expr> (range_to),
+ expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::RangeFullExpr &expr)
+{
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ translated = new HIR::RangeFullExpr (mapping, expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::RangeFromToInclExpr &expr)
+{
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ HIR::Expr *range_from
+ = ASTLoweringExpr::translate (expr.get_from_expr ().get ());
+ HIR::Expr *range_to = ASTLoweringExpr::translate (expr.get_to_expr ().get ());
+
+ translated
+ = new HIR::RangeFromToInclExpr (mapping,
+ std::unique_ptr<HIR::Expr> (range_from),
+ std::unique_ptr<HIR::Expr> (range_to),
+ expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::ClosureExprInner &expr)
+{
+ HIR::Expr *closure_expr
+ = ASTLoweringExpr::translate (expr.get_definition_expr ().get ());
+
+ std::vector<HIR::ClosureParam> closure_params;
+ for (auto ¶m : expr.get_params ())
+ {
+ HIR::ClosureParam p = lower_closure_param (param);
+ closure_params.push_back (std::move (p));
+ }
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ mappings->get_next_localdef_id (crate_num));
+
+ translated
+ = new HIR::ClosureExpr (mapping, std::move (closure_params),
+ nullptr /* closure_return_type */,
+ std::unique_ptr<HIR::Expr> (closure_expr),
+ expr.get_has_move (), expr.get_outer_attrs (),
+ expr.get_locus ());
+}
+
+void
+ASTLoweringExpr::visit (AST::ClosureExprInnerTyped &expr)
+{
+ HIR::Type *closure_return_type = nullptr;
+ HIR::Expr *closure_expr
+ = ASTLoweringExpr::translate (expr.get_definition_block ().get ());
+
+ std::vector<HIR::ClosureParam> closure_params;
+ for (auto ¶m : expr.get_params ())
+ {
+ HIR::ClosureParam p = lower_closure_param (param);
+ closure_params.push_back (std::move (p));
+ }
+
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ mappings->get_next_localdef_id (crate_num));
+
+ translated
+ = new HIR::ClosureExpr (mapping, std::move (closure_params),
+ std::unique_ptr<HIR::Type> (closure_return_type),
+ std::unique_ptr<HIR::Expr> (closure_expr),
+ expr.get_has_move (), expr.get_outer_attrs (),
+ expr.get_locus ());
+}
+
+} // namespace HIR
+} // namespace Rust
@@ -19,11 +19,7 @@
#ifndef RUST_AST_LOWER_EXPR
#define RUST_AST_LOWER_EXPR
-#include "rust-diagnostics.h"
#include "rust-ast-lower-base.h"
-#include "rust-ast-lower-block.h"
-#include "rust-ast-lower-struct-field-expr.h"
-#include "rust-ast-lower-pattern.h"
namespace Rust {
namespace HIR {
@@ -76,703 +72,55 @@ class ASTLoweringExpr : public ASTLoweringBase
using Rust::HIR::ASTLoweringBase::visit;
public:
- static HIR::Expr *translate (AST::Expr *expr, bool *terminated = nullptr)
- {
- ASTLoweringExpr resolver;
- expr->accept_vis (resolver);
- if (resolver.translated == nullptr)
- {
- rust_fatal_error (expr->get_locus (), "Failed to lower expr: [%s]",
- expr->as_string ().c_str ());
- return nullptr;
- }
-
- resolver.mappings->insert_hir_expr (resolver.translated);
- resolver.mappings->insert_location (
- resolver.translated->get_mappings ().get_hirid (), expr->get_locus ());
-
- if (terminated != nullptr)
- *terminated = resolver.terminated;
-
- return resolver.translated;
- }
-
- void visit (AST::TupleIndexExpr &expr) override
- {
- HIR::Expr *tuple_expr
- = ASTLoweringExpr::translate (expr.get_tuple_expr ().get (), &terminated);
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- translated
- = new HIR::TupleIndexExpr (mapping,
- std::unique_ptr<HIR::Expr> (tuple_expr),
- expr.get_tuple_index (),
- expr.get_outer_attrs (), expr.get_locus ());
- }
-
- void visit (AST::TupleExpr &expr) override
- {
- std::vector<std::unique_ptr<HIR::Expr> > tuple_elements;
- for (auto &e : expr.get_tuple_elems ())
- {
- HIR::Expr *t = ASTLoweringExpr::translate (e.get ());
- tuple_elements.push_back (std::unique_ptr<HIR::Expr> (t));
- }
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- translated
- = new HIR::TupleExpr (std::move (mapping), std::move (tuple_elements),
- expr.get_inner_attrs (), expr.get_outer_attrs (),
- expr.get_locus ());
- }
-
- void visit (AST::IfExpr &expr) override
- {
- translated = ASTLoweringIfBlock::translate (&expr, &terminated);
- }
-
- void visit (AST::IfExprConseqElse &expr) override
- {
- translated = ASTLoweringIfBlock::translate (&expr, &terminated);
- }
-
- void visit (AST::IfExprConseqIf &expr) override
- {
- translated = ASTLoweringIfBlock::translate (&expr, &terminated);
- }
-
- void visit (AST::BlockExpr &expr) override
- {
- translated = ASTLoweringBlock::translate (&expr, &terminated);
- }
-
- void visit (AST::UnsafeBlockExpr &expr) override
- {
- translated = ASTLoweringBlock::translate (&expr, &terminated);
- }
-
- void visit (AST::PathInExpression &expr) override
- {
- translated = ASTLowerPathInExpression::translate (&expr);
- }
-
- void visit (AST::QualifiedPathInExpression &expr) override
- {
- translated = ASTLowerQualPathInExpression::translate (&expr);
- }
-
- void visit (AST::ReturnExpr &expr) override
- {
- terminated = true;
- HIR::Expr *return_expr
- = expr.has_returned_expr ()
- ? ASTLoweringExpr::translate (expr.get_returned_expr ().get ())
- : nullptr;
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- translated = new HIR::ReturnExpr (mapping, expr.get_locus (),
- std::unique_ptr<HIR::Expr> (return_expr));
- }
-
- void visit (AST::CallExpr &expr) override
- {
- HIR::Expr *func
- = ASTLoweringExpr::translate (expr.get_function_expr ().get ());
-
- auto const &in_params = expr.get_params ();
- std::vector<std::unique_ptr<HIR::Expr> > params;
- for (auto ¶m : in_params)
- {
- auto trans = ASTLoweringExpr::translate (param.get ());
- params.push_back (std::unique_ptr<HIR::Expr> (trans));
- }
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (
- crate_num, UNKNOWN_NODEID /* this can map back to the AST*/,
- mappings->get_next_hir_id (crate_num), UNKNOWN_LOCAL_DEFID);
-
- translated = new HIR::CallExpr (mapping, std::unique_ptr<HIR::Expr> (func),
- std::move (params), expr.get_outer_attrs (),
- expr.get_locus ());
- }
-
- void visit (AST::MethodCallExpr &expr) override
- {
- HIR::PathExprSegment method_path
- = lower_path_expr_seg (expr.get_method_name ());
-
- HIR::Expr *receiver
- = ASTLoweringExpr::translate (expr.get_receiver_expr ().get ());
-
- auto const &in_params = expr.get_params ();
- std::vector<std::unique_ptr<HIR::Expr> > params;
- for (auto ¶m : in_params)
- {
- auto trans = ASTLoweringExpr::translate (param.get ());
- params.push_back (std::unique_ptr<HIR::Expr> (trans));
- }
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- translated
- = new HIR::MethodCallExpr (mapping, std::unique_ptr<HIR::Expr> (receiver),
- method_path, std::move (params),
- expr.get_outer_attrs (), expr.get_locus ());
- }
-
- void visit (AST::AssignmentExpr &expr) override
- {
- HIR::Expr *lhs = ASTLoweringExpr::translate (expr.get_left_expr ().get ());
- HIR::Expr *rhs = ASTLoweringExpr::translate (expr.get_right_expr ().get ());
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- translated
- = new HIR::AssignmentExpr (mapping, std::unique_ptr<HIR::Expr> (lhs),
- std::unique_ptr<HIR::Expr> (rhs),
- expr.get_locus ());
- }
-
- void visit (AST::IdentifierExpr &expr) override
- {
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping1 (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
- Analysis::NodeMapping mapping2 (mapping1);
-
- HIR::PathIdentSegment ident_seg (expr.get_ident ());
- HIR::PathExprSegment seg (mapping1, ident_seg, expr.get_locus (),
- HIR::GenericArgs::create_empty ());
- translated = new HIR::PathInExpression (mapping2, {seg}, expr.get_locus (),
- false, expr.get_outer_attrs ());
- }
-
- void visit (AST::ArrayExpr &expr) override
- {
- expr.get_array_elems ()->accept_vis (*this);
- rust_assert (translated_array_elems != nullptr);
- HIR::ArrayElems *elems = translated_array_elems;
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- translated
- = new HIR::ArrayExpr (mapping, std::unique_ptr<HIR::ArrayElems> (elems),
- expr.get_inner_attrs (), expr.get_outer_attrs (),
- expr.get_locus ());
- }
-
- void visit (AST::ArrayIndexExpr &expr) override
- {
- HIR::Expr *array_expr
- = ASTLoweringExpr::translate (expr.get_array_expr ().get ());
- HIR::Expr *array_index_expr
- = ASTLoweringExpr::translate (expr.get_index_expr ().get ());
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- translated
- = new HIR::ArrayIndexExpr (mapping,
- std::unique_ptr<HIR::Expr> (array_expr),
- std::unique_ptr<HIR::Expr> (array_index_expr),
- expr.get_outer_attrs (), expr.get_locus ());
- }
-
- void visit (AST::ArrayElemsValues &elems) override
- {
- std::vector<std::unique_ptr<HIR::Expr> > elements;
- for (auto &elem : elems.get_values ())
- {
- HIR::Expr *translated_elem = ASTLoweringExpr::translate (elem.get ());
- elements.push_back (std::unique_ptr<HIR::Expr> (translated_elem));
- }
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (mappings->get_current_crate (),
- elems.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- translated_array_elems
- = new HIR::ArrayElemsValues (mapping, std::move (elements));
- }
-
- void visit (AST::ArrayElemsCopied &elems) override
- {
- HIR::Expr *element
- = ASTLoweringExpr::translate (elems.get_elem_to_copy ().get ());
- HIR::Expr *num_copies
- = ASTLoweringExpr::translate (elems.get_num_copies ().get ());
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (mappings->get_current_crate (),
- elems.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- translated_array_elems
- = new HIR::ArrayElemsCopied (mapping,
- std::unique_ptr<HIR::Expr> (element),
- std::unique_ptr<HIR::Expr> (num_copies));
- }
-
- void visit (AST::LiteralExpr &expr) override
- {
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- HIR::Literal l = lower_literal (expr.get_literal ());
- translated
- = new HIR::LiteralExpr (mapping, std::move (l), expr.get_locus (),
- expr.get_outer_attrs ());
- }
-
- void visit (AST::ArithmeticOrLogicalExpr &expr) override
- {
- HIR::Expr *lhs = ASTLoweringExpr::translate (expr.get_left_expr ().get ());
- rust_assert (lhs != nullptr);
- HIR::Expr *rhs = ASTLoweringExpr::translate (expr.get_right_expr ().get ());
- rust_assert (rhs != nullptr);
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- translated
- = new HIR::ArithmeticOrLogicalExpr (mapping,
- std::unique_ptr<HIR::Expr> (lhs),
- std::unique_ptr<HIR::Expr> (rhs),
- expr.get_expr_type (),
- expr.get_locus ());
- }
-
- void visit (AST::ComparisonExpr &expr) override
- {
- HIR::Expr *lhs = ASTLoweringExpr::translate (expr.get_left_expr ().get ());
- rust_assert (lhs != nullptr);
- HIR::Expr *rhs = ASTLoweringExpr::translate (expr.get_right_expr ().get ());
- rust_assert (rhs != nullptr);
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- translated
- = new HIR::ComparisonExpr (mapping, std::unique_ptr<HIR::Expr> (lhs),
- std::unique_ptr<HIR::Expr> (rhs),
- expr.get_expr_type (), expr.get_locus ());
- }
-
- void visit (AST::LazyBooleanExpr &expr) override
- {
- HIR::Expr *lhs = ASTLoweringExpr::translate (expr.get_left_expr ().get ());
- rust_assert (lhs != nullptr);
- HIR::Expr *rhs = ASTLoweringExpr::translate (expr.get_right_expr ().get ());
- rust_assert (rhs != nullptr);
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- translated
- = new HIR::LazyBooleanExpr (mapping, std::unique_ptr<HIR::Expr> (lhs),
- std::unique_ptr<HIR::Expr> (rhs),
- expr.get_expr_type (), expr.get_locus ());
- }
-
- void visit (AST::NegationExpr &expr) override
- {
- HIR::Expr *negated_value
- = ASTLoweringExpr::translate (expr.get_negated_expr ().get ());
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
- translated
- = new HIR::NegationExpr (mapping,
- std::unique_ptr<HIR::Expr> (negated_value),
- expr.get_expr_type (), expr.get_outer_attrs (),
- expr.get_locus ());
- }
-
- void visit (AST::TypeCastExpr &expr) override
- {
- HIR::Expr *expr_to_cast_to
- = ASTLoweringExpr::translate (expr.get_casted_expr ().get ());
- HIR::Type *type_to_cast_to
- = lower_type_no_bounds (expr.get_type_to_cast_to ().get ());
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- translated
- = new HIR::TypeCastExpr (mapping,
- std::unique_ptr<HIR::Expr> (expr_to_cast_to),
- std::unique_ptr<HIR::Type> (type_to_cast_to),
- expr.get_locus ());
- }
-
- void visit (AST::CompoundAssignmentExpr &expr) override
- {
- ArithmeticOrLogicalOperator op;
- switch (expr.get_expr_type ())
- {
- case CompoundAssignmentOperator::ADD:
- op = ArithmeticOrLogicalOperator::ADD;
- break;
- case CompoundAssignmentOperator::SUBTRACT:
- op = ArithmeticOrLogicalOperator::SUBTRACT;
- break;
- case CompoundAssignmentOperator::MULTIPLY:
- op = ArithmeticOrLogicalOperator::MULTIPLY;
- break;
- case CompoundAssignmentOperator::DIVIDE:
- op = ArithmeticOrLogicalOperator::DIVIDE;
- break;
- case CompoundAssignmentOperator::MODULUS:
- op = ArithmeticOrLogicalOperator::MODULUS;
- break;
- case CompoundAssignmentOperator::BITWISE_AND:
- op = ArithmeticOrLogicalOperator::BITWISE_AND;
- break;
- case CompoundAssignmentOperator::BITWISE_OR:
- op = ArithmeticOrLogicalOperator::BITWISE_OR;
- break;
- case CompoundAssignmentOperator::BITWISE_XOR:
- op = ArithmeticOrLogicalOperator::BITWISE_XOR;
- break;
- case CompoundAssignmentOperator::LEFT_SHIFT:
- op = ArithmeticOrLogicalOperator::LEFT_SHIFT;
- break;
- case CompoundAssignmentOperator::RIGHT_SHIFT:
- op = ArithmeticOrLogicalOperator::RIGHT_SHIFT;
- break;
- default:
- gcc_unreachable ();
- }
-
- HIR::Expr *asignee_expr
- = ASTLoweringExpr::translate (expr.get_left_expr ().get ());
- HIR::Expr *value
- = ASTLoweringExpr::translate (expr.get_right_expr ().get ());
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- translated = new HIR::CompoundAssignmentExpr (
- mapping, std::unique_ptr<HIR::Expr> (asignee_expr),
- std::unique_ptr<HIR::Expr> (value), op, expr.get_locus ());
- }
-
- void visit (AST::StructExprStruct &struct_expr) override
- {
- HIR::PathInExpression *path
- = ASTLowerPathInExpression::translate (&struct_expr.get_struct_name ());
- HIR::PathInExpression copied_path (*path);
- delete path;
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, struct_expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- translated = new HIR::StructExprStruct (mapping, copied_path,
- struct_expr.get_inner_attrs (),
- struct_expr.get_outer_attrs (),
- struct_expr.get_locus ());
- }
-
- void visit (AST::StructExprStructFields &struct_expr) override
- {
- // bit of a hack for now
- HIR::PathInExpression *path
- = ASTLowerPathInExpression::translate (&struct_expr.get_struct_name ());
- HIR::PathInExpression copied_path (*path);
- delete path;
-
- HIR::StructBase *base = nullptr;
- if (struct_expr.has_struct_base ())
- {
- HIR::Expr *translated_base = ASTLoweringExpr::translate (
- struct_expr.get_struct_base ().get_base_struct ().get ());
- base
- = new HIR::StructBase (std::unique_ptr<HIR::Expr> (translated_base));
- }
-
- auto const &in_fields = struct_expr.get_fields ();
- std::vector<std::unique_ptr<HIR::StructExprField> > fields;
- for (auto &field : in_fields)
- {
- HIR::StructExprField *translated
- = ASTLowerStructExprField::translate (field.get ());
- fields.push_back (std::unique_ptr<HIR::StructExprField> (translated));
- }
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, struct_expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- translated = new HIR::StructExprStructFields (
- mapping, copied_path, std::move (fields), struct_expr.get_locus (), base,
- struct_expr.get_inner_attrs (), struct_expr.get_outer_attrs ());
- }
-
- void visit (AST::GroupedExpr &expr) override
- {
- HIR::Expr *paren_expr
- = ASTLoweringExpr::translate (expr.get_expr_in_parens ().get ());
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- translated
- = new HIR::GroupedExpr (mapping, std::unique_ptr<HIR::Expr> (paren_expr),
- expr.get_inner_attrs (), expr.get_outer_attrs (),
- expr.get_locus ());
- }
-
- void visit (AST::FieldAccessExpr &expr) override
- {
- HIR::Expr *receiver
- = ASTLoweringExpr::translate (expr.get_receiver_expr ().get ());
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
- translated
- = new HIR::FieldAccessExpr (mapping,
- std::unique_ptr<HIR::Expr> (receiver),
- expr.get_field_name (),
- expr.get_outer_attrs (), expr.get_locus ());
- }
-
- void visit (AST::LoopExpr &expr) override
- {
- translated = ASTLoweringExprWithBlock::translate (&expr, &terminated);
- }
-
- void visit (AST::WhileLoopExpr &expr) override
- {
- translated = ASTLoweringExprWithBlock::translate (&expr, &terminated);
- }
-
- void visit (AST::ForLoopExpr &expr) override
- {
- translated = ASTLoweringExprWithBlock::translate (&expr, &terminated);
- }
-
- void visit (AST::BreakExpr &expr) override
- {
- HIR::Lifetime break_label = lower_lifetime (expr.get_label ());
- HIR::Expr *break_expr
- = expr.has_break_expr ()
- ? ASTLoweringExpr::translate (expr.get_break_expr ().get ())
- : nullptr;
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- translated = new HIR::BreakExpr (mapping, expr.get_locus (),
- std ::move (break_label),
- std::unique_ptr<HIR::Expr> (break_expr),
- expr.get_outer_attrs ());
- }
-
- void visit (AST::ContinueExpr &expr) override
- {
- HIR::Lifetime break_label = lower_lifetime (expr.get_label ());
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- translated = new HIR::ContinueExpr (mapping, expr.get_locus (),
- std ::move (break_label),
- expr.get_outer_attrs ());
- }
-
- void visit (AST::BorrowExpr &expr) override
- {
- HIR::Expr *borrow_lvalue
- = ASTLoweringExpr::translate (expr.get_borrowed_expr ().get ());
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- HIR::BorrowExpr *borrow_expr
- = new HIR::BorrowExpr (mapping,
- std::unique_ptr<HIR::Expr> (borrow_lvalue),
- expr.get_is_mut () ? Mutability::Mut
- : Mutability::Imm,
- expr.get_outer_attrs (), expr.get_locus ());
-
- if (expr.get_is_double_borrow ())
- {
- NodeId artifical_bouble_borrow_id = mappings->get_next_node_id ();
- Analysis::NodeMapping mapping (crate_num, artifical_bouble_borrow_id,
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- borrow_expr
- = new HIR::BorrowExpr (mapping,
- std::unique_ptr<HIR::Expr> (borrow_expr),
- expr.get_is_mut () ? Mutability::Mut
- : Mutability::Imm,
- expr.get_outer_attrs (), expr.get_locus ());
- }
-
- translated = borrow_expr;
- }
-
- void visit (AST::DereferenceExpr &expr) override
- {
- HIR::Expr *dref_lvalue
- = ASTLoweringExpr::translate (expr.get_dereferenced_expr ().get ());
-
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- translated
- = new HIR::DereferenceExpr (mapping,
- std::unique_ptr<HIR::Expr> (dref_lvalue),
- expr.get_outer_attrs (), expr.get_locus ());
- }
-
- void visit (AST::MatchExpr &expr) override
- {
- translated = ASTLoweringExprWithBlock::translate (&expr, &terminated);
- }
-
- void visit (AST::RangeFromToExpr &expr) override
- {
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- HIR::Expr *range_from
- = ASTLoweringExpr::translate (expr.get_from_expr ().get ());
- HIR::Expr *range_to
- = ASTLoweringExpr::translate (expr.get_to_expr ().get ());
-
- translated
- = new HIR::RangeFromToExpr (mapping,
- std::unique_ptr<HIR::Expr> (range_from),
- std::unique_ptr<HIR::Expr> (range_to),
- expr.get_locus ());
- }
-
- void visit (AST::RangeFromExpr &expr) override
- {
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- HIR::Expr *range_from
- = ASTLoweringExpr::translate (expr.get_from_expr ().get ());
-
- translated
- = new HIR::RangeFromExpr (mapping,
- std::unique_ptr<HIR::Expr> (range_from),
- expr.get_locus ());
- }
-
- void visit (AST::RangeToExpr &expr) override
- {
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- HIR::Expr *range_to
- = ASTLoweringExpr::translate (expr.get_to_expr ().get ());
-
- translated
- = new HIR::RangeToExpr (mapping, std::unique_ptr<HIR::Expr> (range_to),
- expr.get_locus ());
- }
-
- void visit (AST::RangeFullExpr &expr) override
- {
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- translated = new HIR::RangeFullExpr (mapping, expr.get_locus ());
- }
-
- void visit (AST::RangeFromToInclExpr &expr) override
- {
- auto crate_num = mappings->get_current_crate ();
- Analysis::NodeMapping mapping (crate_num, expr.get_node_id (),
- mappings->get_next_hir_id (crate_num),
- UNKNOWN_LOCAL_DEFID);
-
- HIR::Expr *range_from
- = ASTLoweringExpr::translate (expr.get_from_expr ().get ());
- HIR::Expr *range_to
- = ASTLoweringExpr::translate (expr.get_to_expr ().get ());
-
- translated
- = new HIR::RangeFromToInclExpr (mapping,
- std::unique_ptr<HIR::Expr> (range_from),
- std::unique_ptr<HIR::Expr> (range_to),
- expr.get_locus ());
- }
+ static HIR::Expr *translate (AST::Expr *expr, bool *terminated = nullptr);
+
+ void visit (AST::TupleIndexExpr &expr) override;
+ void visit (AST::TupleExpr &expr) override;
+ void visit (AST::IfExpr &expr) override;
+ void visit (AST::IfExprConseqElse &expr) override;
+ void visit (AST::IfExprConseqIf &expr) override;
+ void visit (AST::BlockExpr &expr) override;
+ void visit (AST::UnsafeBlockExpr &expr) override;
+ void visit (AST::PathInExpression &expr) override;
+ void visit (AST::QualifiedPathInExpression &expr) override;
+ void visit (AST::ReturnExpr &expr) override;
+ void visit (AST::CallExpr &expr) override;
+ void visit (AST::MethodCallExpr &expr) override;
+ void visit (AST::AssignmentExpr &expr) override;
+ void visit (AST::IdentifierExpr &expr) override;
+ void visit (AST::ArrayExpr &expr) override;
+ void visit (AST::ArrayIndexExpr &expr) override;
+ void visit (AST::ArrayElemsValues &elems) override;
+ void visit (AST::ArrayElemsCopied &elems) override;
+ void visit (AST::LiteralExpr &expr) override;
+ void visit (AST::ArithmeticOrLogicalExpr &expr) override;
+ void visit (AST::ComparisonExpr &expr) override;
+ void visit (AST::LazyBooleanExpr &expr) override;
+ void visit (AST::NegationExpr &expr) override;
+ void visit (AST::TypeCastExpr &expr) override;
+ void visit (AST::CompoundAssignmentExpr &expr) override;
+ void visit (AST::StructExprStruct &struct_expr) override;
+ void visit (AST::StructExprStructFields &struct_expr) override;
+ void visit (AST::GroupedExpr &expr) override;
+ void visit (AST::FieldAccessExpr &expr) override;
+ void visit (AST::LoopExpr &expr) override;
+ void visit (AST::WhileLoopExpr &expr) override;
+ void visit (AST::ForLoopExpr &expr) override;
+ void visit (AST::BreakExpr &expr) override;
+ void visit (AST::ContinueExpr &expr) override;
+ void visit (AST::BorrowExpr &expr) override;
+ void visit (AST::DereferenceExpr &expr) override;
+ void visit (AST::MatchExpr &expr) override;
+ void visit (AST::RangeFromToExpr &expr) override;
+ void visit (AST::RangeFromExpr &expr) override;
+ void visit (AST::RangeToExpr &expr) override;
+ void visit (AST::RangeFullExpr &expr) override;
+ void visit (AST::RangeFromToInclExpr &expr) override;
+ void visit (AST::ClosureExprInner &expr) override;
+ void visit (AST::ClosureExprInnerTyped &expr) override;
private:
- ASTLoweringExpr ()
- : ASTLoweringBase (), translated (nullptr),
- translated_array_elems (nullptr), terminated (false)
- {}
+ ASTLoweringExpr ();
HIR::Expr *translated;
HIR::ArrayElems *translated_array_elems;
@@ -22,9 +22,12 @@
#include "rust-ast-lower-expr.h"
#include "rust-ast-lower-block.h"
#include "rust-ast-lower-type.h"
+#include "rust-ast-lower-pattern.h"
+#include "rust-ast-lower-struct-field-expr.h"
namespace Rust {
namespace HIR {
+using HIR::ClosureParam;
Visibility
translate_visibility (const AST::Visibility &vis)
@@ -473,5 +476,25 @@ ASTLowerQualPathInExpression::visit (AST::QualifiedPathInExpression &expr)
expr.get_locus (),
expr.get_outer_attrs ());
}
+
+ClosureParam
+ASTLoweringBase::lower_closure_param (AST::ClosureParam ¶m)
+{
+ HIR::Pattern *param_pattern
+ = ASTLoweringPattern::translate (param.get_pattern ().get ());
+
+ HIR::Type *param_type
+ = param.has_type_given ()
+ ? ASTLoweringType::translate (param.get_type ().get ())
+ : nullptr;
+
+ return HIR::ClosureParam (std::unique_ptr<HIR::Pattern> (param_pattern),
+ param.get_locus (),
+ param.has_type_given ()
+ ? std::unique_ptr<HIR::Type> (param_type)
+ : nullptr,
+ param.get_outer_attrs ());
+}
+
} // namespace HIR
} // namespace Rust
@@ -197,7 +197,7 @@ void
Dump::visit (FieldAccessExpr &)
{}
void
-Dump::visit (ClosureExprInner &)
+Dump::visit (ClosureExpr &)
{}
void
Dump::visit (BlockExpr &block_expr)
@@ -212,9 +212,7 @@ Dump::visit (BlockExpr &block_expr)
stream << "]";
indent--;
}
-void
-Dump::visit (ClosureExprInnerTyped &)
-{}
+
void
Dump::visit (ContinueExpr &)
{}
@@ -78,9 +78,8 @@ private:
virtual void visit (CallExpr &) override;
virtual void visit (MethodCallExpr &) override;
virtual void visit (FieldAccessExpr &) override;
- virtual void visit (ClosureExprInner &) override;
+ virtual void visit (ClosureExpr &) override;
virtual void visit (BlockExpr &) override;
- virtual void visit (ClosureExprInnerTyped &) override;
virtual void visit (ContinueExpr &) override;
virtual void visit (BreakExpr &) override;
virtual void visit (RangeFromToExpr &) override;
@@ -1985,21 +1985,22 @@ protected:
struct ClosureParam
{
private:
+ std::vector<AST::Attribute> outer_attrs;
std::unique_ptr<Pattern> pattern;
-
- // bool has_type_given;
std::unique_ptr<Type> type;
-
- // TODO: should this store location data?
+ Location locus;
public:
// Returns whether the type of the parameter has been given.
bool has_type_given () const { return type != nullptr; }
// Constructor for closure parameter
- ClosureParam (std::unique_ptr<Pattern> param_pattern,
- std::unique_ptr<Type> param_type = nullptr)
- : pattern (std::move (param_pattern)), type (std::move (param_type))
+ ClosureParam (std::unique_ptr<Pattern> param_pattern, Location locus,
+ std::unique_ptr<Type> param_type = nullptr,
+ std::vector<AST::Attribute> outer_attrs = {})
+ : outer_attrs (std::move (outer_attrs)),
+ pattern (std::move (param_pattern)), type (std::move (param_type)),
+ locus (locus)
{}
// Copy constructor required due to cloning as a result of unique_ptrs
@@ -2007,6 +2008,8 @@ public:
: pattern (other.pattern->clone_pattern ())
{
// guard to protect from null pointer dereference
+ if (other.pattern != nullptr)
+ pattern = other.pattern->clone_pattern ();
if (other.type != nullptr)
type = other.type->clone_type ();
}
@@ -2016,8 +2019,17 @@ public:
// Assignment operator must be overloaded to clone as well
ClosureParam &operator= (ClosureParam const &other)
{
- pattern = other.pattern->clone_pattern ();
- type = other.type->clone_type ();
+ outer_attrs = other.outer_attrs;
+
+ // guard to protect from null pointer dereference
+ if (other.pattern != nullptr)
+ pattern = other.pattern->clone_pattern ();
+ else
+ pattern = nullptr;
+ if (other.type != nullptr)
+ type = other.type->clone_type ();
+ else
+ type = nullptr;
return *this;
}
@@ -2026,31 +2038,79 @@ public:
ClosureParam (ClosureParam &&other) = default;
ClosureParam &operator= (ClosureParam &&other) = default;
- // Returns whether closure parameter is in an error state.
- bool is_error () const { return pattern == nullptr; }
+ std::string as_string () const;
- // Creates an error state closure parameter.
- static ClosureParam create_error () { return ClosureParam (nullptr); }
+ const std::vector<AST::Attribute> &get_outer_attrs () const
+ {
+ return outer_attrs;
+ }
+ std::vector<AST::Attribute> &get_outer_attrs () { return outer_attrs; }
- std::string as_string () const;
+ std::unique_ptr<Pattern> &get_pattern ()
+ {
+ rust_assert (pattern != nullptr);
+ return pattern;
+ }
+
+ std::unique_ptr<Type> &get_type ()
+ {
+ rust_assert (has_type_given ());
+ return type;
+ }
+
+ Location get_locus () const { return locus; }
};
// Base closure definition expression HIR node - abstract
class ClosureExpr : public ExprWithoutBlock
{
+private:
bool has_move;
std::vector<ClosureParam> params;
Location locus;
+ std::unique_ptr<Type> return_type;
+ std::unique_ptr<Expr> expr;
-protected:
+public:
ClosureExpr (Analysis::NodeMapping mappings,
- std::vector<ClosureParam> closure_params, bool has_move,
+ std::vector<ClosureParam> closure_params,
+ std::unique_ptr<Type> closure_return_type,
+ std::unique_ptr<Expr> closure_expr, bool has_move,
AST::AttrVec outer_attribs, Location locus)
: ExprWithoutBlock (std::move (mappings), std::move (outer_attribs)),
- has_move (has_move), params (std::move (closure_params)), locus (locus)
+ has_move (has_move), params (std::move (closure_params)), locus (locus),
+ return_type (std::move (closure_return_type)),
+ expr (std::move (closure_expr))
{}
-public:
+ // Copy constructor requires cloning
+ ClosureExpr (ClosureExpr const &other)
+ : ExprWithoutBlock (other.get_mappings (), other.get_outer_attrs ())
+ {
+ return_type
+ = other.has_return_type () ? other.return_type->clone_type () : nullptr;
+ expr = other.expr->clone_expr ();
+ params = other.params;
+ has_move = other.has_move;
+ }
+
+ // Overload assignment operator to clone unique_ptrs
+ ClosureExpr &operator= (ClosureExpr const &other)
+ {
+ mappings = other.mappings;
+ return_type
+ = other.has_return_type () ? other.return_type->clone_type () : nullptr;
+ expr = other.expr->clone_expr ();
+ params = other.params;
+ has_move = other.has_move;
+
+ return *this;
+ }
+
+ // move constructors
+ ClosureExpr (ClosureExpr &&other) = default;
+ ClosureExpr &operator= (ClosureExpr &&other) = default;
+
std::string as_string () const override;
Location get_locus () const override final { return locus; }
@@ -2059,47 +2119,17 @@ public:
{
return ExprType::Closure;
}
-};
-// Represents a non-type-specified closure expression HIR node
-class ClosureExprInner : public ClosureExpr
-{
- std::unique_ptr<Expr> closure_inner;
+ bool get_has_move () const { return has_move; }
-public:
- std::string as_string () const override;
+ bool has_return_type () const { return return_type != nullptr; }
- // Constructor for a ClosureExprInner
- ClosureExprInner (Analysis::NodeMapping mappings,
- std::unique_ptr<Expr> closure_inner_expr,
- std::vector<ClosureParam> closure_params, Location locus,
- bool is_move = false,
- AST::AttrVec outer_attribs = AST::AttrVec ())
- : ClosureExpr (std::move (mappings), std::move (closure_params), is_move,
- std::move (outer_attribs), locus),
- closure_inner (std::move (closure_inner_expr))
- {}
-
- // Copy constructor must be defined to allow copying via cloning of unique_ptr
- ClosureExprInner (ClosureExprInner const &other)
- : ClosureExpr (other), closure_inner (other.closure_inner->clone_expr ())
- {}
-
- // Overload assignment operator to clone closure_inner
- ClosureExprInner &operator= (ClosureExprInner const &other)
+ std::unique_ptr<Type> &get_return_type ()
{
- ClosureExpr::operator= (other);
- closure_inner = other.closure_inner->clone_expr ();
- // params = other.params;
- // has_move = other.has_move;
- // outer_attrs = other.outer_attrs;
-
- return *this;
- }
-
- // move constructors
- ClosureExprInner (ClosureExprInner &&other) = default;
- ClosureExprInner &operator= (ClosureExprInner &&other) = default;
+ rust_assert (has_return_type ());
+ return return_type;
+ };
+ std::unique_ptr<Expr> &get_expr () { return expr; }
void accept_vis (HIRFullVisitor &vis) override;
void accept_vis (HIRExpressionVisitor &vis) override;
@@ -2107,16 +2137,16 @@ public:
protected:
/* Use covariance to implement clone function as returning this object rather
* than base */
- ClosureExprInner *clone_expr_impl () const override
+ ClosureExpr *clone_expr_impl () const override
{
- return new ClosureExprInner (*this);
+ return new ClosureExpr (*this);
}
/* Use covariance to implement clone function as returning this object rather
* than base */
- ClosureExprInner *clone_expr_without_block_impl () const override
+ ClosureExpr *clone_expr_without_block_impl () const override
{
- return new ClosureExprInner (*this);
+ return new ClosureExpr (*this);
}
};
@@ -2239,71 +2269,6 @@ protected:
}
};
-// Represents a type-specified closure expression HIR node
-class ClosureExprInnerTyped : public ClosureExpr
-{
- std::unique_ptr<Type> return_type;
- std::unique_ptr<BlockExpr>
- expr; // only used because may be polymorphic in future
-
-public:
- std::string as_string () const override;
-
- // Constructor potentially with a move
- ClosureExprInnerTyped (Analysis::NodeMapping mappings,
- std::unique_ptr<Type> closure_return_type,
- std::unique_ptr<BlockExpr> closure_expr,
- std::vector<ClosureParam> closure_params,
- Location locus, bool is_move = false,
- AST::AttrVec outer_attribs = AST::AttrVec ())
- : ClosureExpr (std::move (mappings), std::move (closure_params), is_move,
- std::move (outer_attribs), locus),
- return_type (std::move (closure_return_type)),
- expr (std::move (closure_expr))
- {}
-
- // Copy constructor requires cloning
- ClosureExprInnerTyped (ClosureExprInnerTyped const &other)
- : ClosureExpr (other), return_type (other.return_type->clone_type ()),
- expr (other.expr->clone_block_expr ())
- {}
-
- // Overload assignment operator to clone unique_ptrs
- ClosureExprInnerTyped &operator= (ClosureExprInnerTyped const &other)
- {
- ClosureExpr::operator= (other);
- return_type = other.return_type->clone_type ();
- expr = other.expr->clone_block_expr ();
- // params = other.params;
- // has_move = other.has_move;
- // outer_attrs = other.outer_attrs;
-
- return *this;
- }
-
- // move constructors
- ClosureExprInnerTyped (ClosureExprInnerTyped &&other) = default;
- ClosureExprInnerTyped &operator= (ClosureExprInnerTyped &&other) = default;
-
- void accept_vis (HIRFullVisitor &vis) override;
- void accept_vis (HIRExpressionVisitor &vis) override;
-
-protected:
- /* Use covariance to implement clone function as returning this object rather
- * than base */
- ClosureExprInnerTyped *clone_expr_impl () const override
- {
- return new ClosureExprInnerTyped (*this);
- }
-
- /* Use covariance to implement clone function as returning this object rather
- * than base */
- ClosureExprInnerTyped *clone_expr_without_block_impl () const override
- {
- return new ClosureExprInnerTyped (*this);
- }
-};
-
// HIR node representing continue expression within loops
class ContinueExpr : public ExprWithoutBlock
{
@@ -94,9 +94,7 @@ class MethodCallExpr;
class FieldAccessExpr;
struct ClosureParam;
class ClosureExpr;
-class ClosureExprInner;
class BlockExpr;
-class ClosureExprInnerTyped;
class ContinueExpr;
class BreakExpr;
class RangeExpr;
@@ -1133,15 +1133,8 @@ ClosureExpr::as_string () const
}
}
- return str;
-}
-
-std::string
-ClosureExprInnerTyped::as_string () const
-{
- std::string str = ClosureExpr::as_string ();
-
- str += "\n Return type: " + return_type->as_string ();
+ str += "\n Return type: "
+ + (has_return_type () ? return_type->as_string () : "none");
str += "\n Body: " + expr->as_string ();
@@ -1515,16 +1508,6 @@ UnsafeBlockExpr::as_string () const
return str + "\n" + indent_spaces (out) + "}\n" + expr->as_string ();
}
-std::string
-ClosureExprInner::as_string () const
-{
- std::string str = ClosureExpr::as_string ();
-
- str += "\n Expression: " + closure_inner->as_string ();
-
- return str;
-}
-
std::string
IfExpr::as_string () const
{
@@ -4038,7 +4021,7 @@ FieldAccessExpr::accept_vis (HIRFullVisitor &vis)
}
void
-ClosureExprInner::accept_vis (HIRFullVisitor &vis)
+ClosureExpr::accept_vis (HIRFullVisitor &vis)
{
vis.visit (*this);
}
@@ -4049,12 +4032,6 @@ BlockExpr::accept_vis (HIRFullVisitor &vis)
vis.visit (*this);
}
-void
-ClosureExprInnerTyped::accept_vis (HIRFullVisitor &vis)
-{
- vis.visit (*this);
-}
-
void
ContinueExpr::accept_vis (HIRFullVisitor &vis)
{
@@ -4986,7 +4963,7 @@ IfExpr::accept_vis (HIRExpressionVisitor &vis)
}
void
-ClosureExprInner::accept_vis (HIRExpressionVisitor &vis)
+ClosureExpr::accept_vis (HIRExpressionVisitor &vis)
{
vis.visit (*this);
}
@@ -5075,12 +5052,6 @@ QualifiedPathInExpression::accept_vis (HIRPatternVisitor &vis)
vis.visit (*this);
}
-void
-ClosureExprInnerTyped::accept_vis (HIRExpressionVisitor &vis)
-{
- vis.visit (*this);
-}
-
void
ExprStmtWithBlock::accept_vis (HIRStmtVisitor &vis)
{
@@ -63,9 +63,8 @@ public:
virtual void visit (CallExpr &expr) = 0;
virtual void visit (MethodCallExpr &expr) = 0;
virtual void visit (FieldAccessExpr &expr) = 0;
- virtual void visit (ClosureExprInner &expr) = 0;
virtual void visit (BlockExpr &expr) = 0;
- virtual void visit (ClosureExprInnerTyped &expr) = 0;
+ virtual void visit (ClosureExpr &expr) = 0;
virtual void visit (ContinueExpr &expr) = 0;
virtual void visit (BreakExpr &expr) = 0;
virtual void visit (RangeFromToExpr &expr) = 0;
@@ -206,9 +205,8 @@ public:
virtual void visit (CallExpr &) override {}
virtual void visit (MethodCallExpr &) override {}
virtual void visit (FieldAccessExpr &) override {}
- virtual void visit (ClosureExprInner &) override {}
+ virtual void visit (ClosureExpr &) override {}
virtual void visit (BlockExpr &) override {}
- virtual void visit (ClosureExprInnerTyped &) override {}
virtual void visit (ContinueExpr &) override {}
virtual void visit (BreakExpr &) override {}
virtual void visit (RangeFromToExpr &) override {}
@@ -419,8 +417,7 @@ public:
virtual void visit (HIR::QualifiedPathInExpression &expr) = 0;
virtual void visit (HIR::PathInExpression &expr) = 0;
- virtual void visit (ClosureExprInnerTyped &) = 0;
- virtual void visit (ClosureExprInner &expr) = 0;
+ virtual void visit (ClosureExpr &) = 0;
virtual void visit (StructExprStructFields &) = 0;
virtual void visit (StructExprStruct &) = 0;
virtual void visit (LiteralExpr &expr) = 0;
@@ -238,6 +238,7 @@ class ExprWithoutBlock;
// Base expression HIR node - abstract
class Expr : public Node
{
+protected:
AST::AttrVec outer_attrs;
Analysis::NodeMapping mappings;
@@ -1418,6 +1418,12 @@ TypeCheckExpr::visit (HIR::MatchExpr &expr)
}
}
+void
+TypeCheckExpr::visit (HIR::ClosureExpr &expr)
+{
+ gcc_unreachable ();
+}
+
bool
TypeCheckExpr::resolve_operator_overload (
Analysis::RustLangItem::ItemType lang_item_type, HIR::OperatorExprMeta expr,
@@ -69,10 +69,9 @@ public:
void visit (HIR::RangeFullExpr &expr) override;
void visit (HIR::RangeFromToInclExpr &expr) override;
void visit (HIR::WhileLoopExpr &expr) override;
+ void visit (HIR::ClosureExpr &expr) override;
// TODO
- void visit (HIR::ClosureExprInnerTyped &) override {}
- void visit (HIR::ClosureExprInner &expr) override {}
void visit (HIR::ErrorPropagationExpr &expr) override {}
void visit (HIR::RangeToInclExpr &expr) override {}
void visit (HIR::WhileLetLoopExpr &expr) override {}