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https://github.com/carbon-language/carbon-lang.git
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Richard Smith
4b69264cb1
Add validation that every code block in a function is terminated by a sequence of terminating instructions, and that terminators don't appear anywhere else in code blocks. This required tracking whether we're in a reachable code block. That's done on the fly when we create a new code block; the new `SemanticsNodeBlockId::Unreachable` is used to represent the case where we're not actually creating a code block because we're in unreachable code.
27 lines
974 B
C++
27 lines
974 B
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 "toolchain/semantics/semantics_node_kind.h"
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namespace Carbon {
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CARBON_DEFINE_ENUM_CLASS_NAMES(SemanticsNodeKind) = {
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#define CARBON_SEMANTICS_NODE_KIND(Name) CARBON_ENUM_CLASS_NAME_STRING(Name)
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#include "toolchain/semantics/semantics_node_kind.def"
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};
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auto SemanticsNodeKind::terminator_kind() const -> SemanticsTerminatorKind {
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static constexpr SemanticsTerminatorKind Table[] = {
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#define CARBON_SEMANTICS_NODE_KIND(Name) SemanticsTerminatorKind::NotTerminator,
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#define CARBON_SEMANTICS_TERMINATOR_SEQUENCE_KIND(Name) \
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SemanticsTerminatorKind::TerminatorSequence,
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#define CARBON_SEMANTICS_TERMINATOR_KIND(Name) \
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SemanticsTerminatorKind::Terminator,
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#include "toolchain/semantics/semantics_node_kind.def"
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};
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return Table[AsInt()];
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}
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} // namespace Carbon
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