mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 21:00:13 +01:00
Jon Meow
20728dbd3a
This modifies scripts/check_header_guards.py to add the CARBON_ prefix; everything else is pre-commit.
79 lines
2.0 KiB
C++
79 lines
2.0 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_IR_H_
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#define CARBON_TOOLCHAIN_SEMANTICS_SEMANTICS_IR_H_
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringMap.h"
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#include "toolchain/parser/parse_tree.h"
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#include "toolchain/semantics/function.h"
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namespace Carbon {
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// Provides semantic analysis on a ParseTree.
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class SemanticsIR {
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public:
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// Provides a link back to a semantic node in a name scope.
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class Node {
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public:
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Node() : Node(Kind::Invalid, -1) {}
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private:
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friend class SemanticsIR;
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// The kind of token. These correspond to the lists on SemanticsIR which
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// will be indexed into.
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enum class Kind {
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Invalid,
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Function,
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};
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Node(Kind kind, int32_t index) : kind_(kind), index_(index) {
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// TODO: kind_ and index_ are currently unused, this suppresses the
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// warning.
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kind_ = kind;
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index_ = index;
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}
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Kind kind_;
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// The index of the named entity within its list.
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int32_t index_;
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};
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struct Block {
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public:
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void Add(llvm::StringRef name, Node named_entity);
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private:
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llvm::SmallVector<Node> ordering_;
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llvm::StringMap<Node> name_lookup_;
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};
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private:
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friend class SemanticsIRFactory;
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explicit SemanticsIR(const ParseTree& parse_tree)
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: parse_tree_(&parse_tree) {}
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// Creates a function, adds it to the enclosing scope, and returns a reference
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// for further mutations. On a name collision, it will not be added to the
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// scope, but will still be returned.
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auto AddFunction(Block& block, ParseTree::Node decl_node,
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ParseTree::Node name_node) -> Semantics::Function&;
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// Indexed by Token::Function.
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llvm::SmallVector<Semantics::Function, 0> functions_;
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// The file-level block.
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Block root_block_;
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const ParseTree* parse_tree_;
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};
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} // namespace Carbon
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#endif // CARBON_TOOLCHAIN_SEMANTICS_SEMANTICS_IR_H_
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