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https://github.com/carbon-language/carbon-lang.git
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Jon Ross-Perkins
67da700dd5
Splits IR files into SemIR, and logic files into Check. These will be split into separate directories as part of a later move; the namespaces are being done first in order to vet the switch, and hopefully make conflicts a little easier to manage due to the substantial renames. A lot of this is just automated removal of Semantics prefixes from names, adding namespace references where needed. A few special-cases are: - SemanticsIR -> SemIR::File - A few things were discussed, like Unit, CompileUnit, or CompiledUnit. Unit was too vague for chandlerc, and I thought CompileUnit might lead to incorrect inferences (CompilationUnit would be more precise, but typically written as SemIR::CompilationUnit which is pretty long). File seemed to be a short name that we could agree on. - SemanticsIRFormatter -> SemIR::Formatter - FormatSemanticsIR -> SemIR::FormatFile - SemanticsFileTest -> CheckFileTest - It remains in the Testing namespace, where just "FileTest" might be too broad a name. - SemanticsDeclarationNameStack::Context -> Check::DeclarationNameStack::NameContext - This avoids a Check::Context name shadowing. Changes check_internal.h to include ostream.h to improve finding of Print/operator<< (otherwise it didn't compile). This is part of #3070
90 lines
3.1 KiB
C++
90 lines
3.1 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 CARBON_TOOLCHAIN_SEMANTICS_SEMANTICS_NODE_KIND_H_
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#define CARBON_TOOLCHAIN_SEMANTICS_SEMANTICS_NODE_KIND_H_
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#include <cstdint>
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#include "common/enum_base.h"
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#include "llvm/ADT/FoldingSet.h"
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namespace Carbon::SemIR {
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// Whether a node produces or represents a value, and if so, what kind of value.
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enum class NodeValueKind {
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// This node doesn't produce a value, and shouldn't be referenced by other
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// nodes.
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None,
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// This node represents an untyped value. It may be referenced by other nodes
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// expecting this kind of value.
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Untyped,
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// This node represents an expression or expression-like construct that
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// produces a value of the type indicated by its `type_id` field.
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Typed,
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};
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// Whether a node is a terminator or part of the terminator sequence. The nodes
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// in a block appear in the order NotTerminator, then TerminatorSequence, then
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// Terminator, which is also the numerical order of these values.
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enum class TerminatorKind {
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// This node is not a terminator.
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NotTerminator,
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// This node is not itself a terminator, but forms part of a terminator
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// sequence.
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TerminatorSequence,
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// This node is a terminator.
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Terminator,
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};
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} // namespace Carbon::SemIR
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namespace Carbon {
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CARBON_DEFINE_RAW_ENUM_CLASS(SemanticsNodeKind, uint8_t) {
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#define CARBON_SEMANTICS_NODE_KIND(Name) CARBON_RAW_ENUM_ENUMERATOR(Name)
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#include "toolchain/semantics/semantics_node_kind.def"
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};
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class SemanticsNodeKind : public CARBON_ENUM_BASE(SemanticsNodeKind) {
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public:
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#define CARBON_SEMANTICS_NODE_KIND(Name) CARBON_ENUM_CONSTANT_DECLARATION(Name)
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#include "toolchain/semantics/semantics_node_kind.def"
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using EnumBase::Create;
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// Returns the name to use for this node kind in Semantics IR.
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[[nodiscard]] auto ir_name() const -> llvm::StringRef;
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// Returns whether this kind of node is expected to produce a value.
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[[nodiscard]] auto value_kind() const -> SemIR::NodeValueKind;
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// Returns whether this node kind is a code block terminator, such as an
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// unconditional branch instruction, or part of the termination sequence,
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// such as a conditional branch instruction. The termination sequence of a
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// code block appears after all other instructions, and ends with a
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// terminator instruction.
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[[nodiscard]] auto terminator_kind() const -> SemIR::TerminatorKind;
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// Compute a fingerprint for this node kind, allowing its use as part of the
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// key in a `FoldingSet`.
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void Profile(llvm::FoldingSetNodeID& id) { id.AddInteger(AsInt()); }
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};
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#define CARBON_SEMANTICS_NODE_KIND(Name) \
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CARBON_ENUM_CONSTANT_DEFINITION(SemanticsNodeKind, Name)
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#include "toolchain/semantics/semantics_node_kind.def"
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// We expect the node kind to fit compactly into 8 bits.
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static_assert(sizeof(SemanticsNodeKind) == 1, "Kind objects include padding!");
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// TODO: Refactor EnumBase to remove the need for this alias.
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namespace SemIR {
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using NodeKind = SemanticsNodeKind;
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} // namespace SemIR
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} // namespace Carbon
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#endif // CARBON_TOOLCHAIN_SEMANTICS_SEMANTICS_NODE_KIND_H_
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