mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
Richard Smith
06ce3b0161
Lowering for `and` and `or` is not yet complete because `Branch` lowering isn't done yet.
117 lines
3.5 KiB
C++
117 lines
3.5 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
|
|
// Exceptions. See /LICENSE for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
|
|
#include "toolchain/lexer/token_kind.h"
|
|
|
|
#include "common/check.h"
|
|
#include "llvm/ADT/StringRef.h"
|
|
|
|
namespace Carbon {
|
|
|
|
CARBON_DEFINE_ENUM_CLASS_NAMES(TokenKind) = {
|
|
#define CARBON_TOKEN(TokenName) CARBON_ENUM_CLASS_NAME_STRING(TokenName)
|
|
#include "toolchain/lexer/token_kind.def"
|
|
};
|
|
|
|
auto TokenKind::is_symbol() const -> bool {
|
|
static constexpr bool Table[] = {
|
|
#define CARBON_TOKEN(TokenName) false,
|
|
#define CARBON_SYMBOL_TOKEN(TokenName, Spelling) true,
|
|
#include "toolchain/lexer/token_kind.def"
|
|
};
|
|
return Table[AsInt()];
|
|
}
|
|
|
|
auto TokenKind::is_grouping_symbol() const -> bool {
|
|
static constexpr bool Table[] = {
|
|
#define CARBON_TOKEN(TokenName) false,
|
|
#define CARBON_OPENING_GROUP_SYMBOL_TOKEN(TokenName, Spelling, ClosingName) \
|
|
true,
|
|
#define CARBON_CLOSING_GROUP_SYMBOL_TOKEN(TokenName, Spelling, OpeningName) \
|
|
true,
|
|
#include "toolchain/lexer/token_kind.def"
|
|
};
|
|
return Table[AsInt()];
|
|
}
|
|
|
|
auto TokenKind::is_opening_symbol() const -> bool {
|
|
static constexpr bool Table[] = {
|
|
#define CARBON_TOKEN(TokenName) false,
|
|
#define CARBON_OPENING_GROUP_SYMBOL_TOKEN(TokenName, Spelling, ClosingName) \
|
|
true,
|
|
#include "toolchain/lexer/token_kind.def"
|
|
};
|
|
return Table[AsInt()];
|
|
}
|
|
|
|
auto TokenKind::closing_symbol() const -> TokenKind {
|
|
static constexpr TokenKind Table[] = {
|
|
#define CARBON_TOKEN(TokenName) Error,
|
|
#define CARBON_OPENING_GROUP_SYMBOL_TOKEN(TokenName, Spelling, ClosingName) \
|
|
ClosingName,
|
|
#include "toolchain/lexer/token_kind.def"
|
|
};
|
|
auto result = Table[AsInt()];
|
|
CARBON_CHECK(result != Error) << "Only opening symbols are valid!";
|
|
return result;
|
|
}
|
|
|
|
auto TokenKind::is_closing_symbol() const -> bool {
|
|
static constexpr bool Table[] = {
|
|
#define CARBON_TOKEN(TokenName) false,
|
|
#define CARBON_CLOSING_GROUP_SYMBOL_TOKEN(TokenName, Spelling, OpeningName) \
|
|
true,
|
|
#include "toolchain/lexer/token_kind.def"
|
|
};
|
|
return Table[AsInt()];
|
|
}
|
|
|
|
auto TokenKind::opening_symbol() const -> TokenKind {
|
|
static constexpr TokenKind Table[] = {
|
|
#define CARBON_TOKEN(TokenName) Error,
|
|
#define CARBON_CLOSING_GROUP_SYMBOL_TOKEN(TokenName, Spelling, OpeningName) \
|
|
OpeningName,
|
|
#include "toolchain/lexer/token_kind.def"
|
|
};
|
|
auto result = Table[AsInt()];
|
|
CARBON_CHECK(result != Error) << "Only closing symbols are valid!";
|
|
return result;
|
|
}
|
|
|
|
auto TokenKind::is_keyword() const -> bool {
|
|
static constexpr bool Table[] = {
|
|
#define CARBON_TOKEN(TokenName) false,
|
|
#define CARBON_KEYWORD_TOKEN(TokenName, Spelling) true,
|
|
#include "toolchain/lexer/token_kind.def"
|
|
};
|
|
return Table[AsInt()];
|
|
}
|
|
|
|
auto TokenKind::is_sized_type_literal() const -> bool {
|
|
return *this == TokenKind::IntegerTypeLiteral ||
|
|
*this == TokenKind::UnsignedIntegerTypeLiteral ||
|
|
*this == TokenKind::FloatingPointTypeLiteral;
|
|
}
|
|
|
|
auto TokenKind::fixed_spelling() const -> llvm::StringRef {
|
|
static constexpr llvm::StringLiteral Table[] = {
|
|
#define CARBON_TOKEN(TokenName) "",
|
|
#define CARBON_SYMBOL_TOKEN(TokenName, Spelling) Spelling,
|
|
#define CARBON_KEYWORD_TOKEN(TokenName, Spelling) Spelling,
|
|
#include "toolchain/lexer/token_kind.def"
|
|
};
|
|
return Table[AsInt()];
|
|
}
|
|
|
|
auto TokenKind::expected_parse_tree_size() const -> int {
|
|
static constexpr int8_t Table[] = {
|
|
#define CARBON_TOKEN(Name) 1,
|
|
#define CARBON_TOKEN_WITH_VIRTUAL_NODE(size) 1 + size
|
|
#include "toolchain/lexer/token_kind.def"
|
|
};
|
|
return Table[AsInt()];
|
|
}
|
|
|
|
} // namespace Carbon
|