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Adds support for arithmetic and comparison operators on `Core.CharLiteral`s, as well as conversions between `CharLiteral` and integer types. Make some minor tweaks to fix skill issues encountered while making this change. Assisted-by: Gemini via Antigravity
155 lines
5.7 KiB
C++
155 lines
5.7 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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#include <cmath>
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#include "toolchain/check/call.h"
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#include "toolchain/check/context.h"
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#include "toolchain/check/convert.h"
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#include "toolchain/check/handle.h"
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#include "toolchain/check/inst.h"
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#include "toolchain/check/literal.h"
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#include "toolchain/check/name_lookup.h"
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#include "toolchain/check/type.h"
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#include "toolchain/diagnostics/format_providers.h"
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#include "toolchain/sem_ir/ids.h"
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#include "toolchain/sem_ir/typed_insts.h"
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namespace Carbon::Check {
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auto HandleParseNode(Context& context, Parse::BoolLiteralFalseId node_id)
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-> bool {
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context.node_stack().Push(
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node_id, MakeBoolLiteral(context, node_id, SemIR::BoolValue::False));
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return true;
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}
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auto HandleParseNode(Context& context, Parse::BoolLiteralTrueId node_id)
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-> bool {
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context.node_stack().Push(
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node_id, MakeBoolLiteral(context, node_id, SemIR::BoolValue::True));
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return true;
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}
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auto HandleParseNode(Context& context, Parse::CharLiteralId node_id) -> bool {
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auto value = context.tokens().GetCharLiteralValue(
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context.parse_tree().node_token(node_id));
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auto char_id = SemIR::CharId::ForCodePoint(llvm::APInt(32, value.value));
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CARBON_CHECK(char_id.has_value(), "Invalid character literal parsed: {0}",
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value.value);
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auto inst_id = AddInst<SemIR::CharLiteralValue>(
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context, node_id,
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{.type_id = GetSingletonType(context, SemIR::CharLiteralType::TypeInstId),
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.value = *char_id});
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context.node_stack().Push(node_id, inst_id);
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return true;
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}
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auto HandleParseNode(Context& context, Parse::IntLiteralId node_id) -> bool {
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auto int_literal_id = MakeIntLiteral(
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context, node_id,
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context.tokens().GetIntLiteral(context.parse_tree().node_token(node_id)));
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context.node_stack().Push(node_id, int_literal_id);
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return true;
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}
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auto HandleParseNode(Context& context, Parse::RealLiteralId node_id) -> bool {
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auto real_id =
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context.tokens().GetRealLiteral(context.parse_tree().node_token(node_id));
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AddInstAndPush<SemIR::FloatLiteralValue>(
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context, node_id,
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{.type_id =
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GetSingletonType(context, SemIR::FloatLiteralType::TypeInstId),
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.real_id = real_id});
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return true;
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}
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auto HandleParseNode(Context& context, Parse::StringLiteralId node_id) -> bool {
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auto str_literal_id =
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MakeStringLiteral(context, node_id,
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context.tokens().GetStringLiteralValue(
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context.parse_tree().node_token(node_id)));
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context.node_stack().Push(node_id, str_literal_id);
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return true;
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}
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auto HandleParseNode(Context& context, Parse::BoolTypeLiteralId node_id)
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-> bool {
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auto type_inst_id = MakeBoolTypeLiteral(context, node_id);
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context.node_stack().Push(node_id, type_inst_id);
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return true;
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}
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auto HandleParseNode(Context& context, Parse::CharTypeLiteralId node_id)
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-> bool {
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auto type_inst_id = MakeCharTypeLiteral(context, node_id);
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context.node_stack().Push(node_id, type_inst_id);
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return true;
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}
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// Shared implementation for handling `iN` and `uN` literals.
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static auto HandleIntOrUnsignedIntTypeLiteral(Context& context,
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Parse::NodeId node_id,
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SemIR::IntKind int_kind,
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IntId size_id) -> bool {
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if (!(context.ints().Get(size_id) & 7).isZero()) {
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CARBON_DIAGNOSTIC(IntWidthNotMultipleOf8, Error,
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"bit width of integer type literal must be a multiple of "
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"8; use `Core.{0:Int|UInt}({1})` instead",
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Diagnostics::BoolAsSelect, llvm::APSInt);
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context.emitter().Emit(
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node_id, IntWidthNotMultipleOf8, int_kind.is_signed(),
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llvm::APSInt(context.ints().Get(size_id), /*isUnsigned=*/true));
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}
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auto type_inst_id = MakeIntTypeLiteral(context, node_id, int_kind, size_id);
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context.node_stack().Push(node_id, type_inst_id);
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return true;
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}
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auto HandleParseNode(Context& context, Parse::IntTypeLiteralId node_id)
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-> bool {
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auto tok_id = context.parse_tree().node_token(node_id);
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auto size_id = context.tokens().GetTypeLiteralSize(tok_id);
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return HandleIntOrUnsignedIntTypeLiteral(context, node_id,
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SemIR::IntKind::Signed, size_id);
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}
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auto HandleParseNode(Context& context, Parse::UnsignedIntTypeLiteralId node_id)
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-> bool {
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auto tok_id = context.parse_tree().node_token(node_id);
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auto size_id = context.tokens().GetTypeLiteralSize(tok_id);
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return HandleIntOrUnsignedIntTypeLiteral(context, node_id,
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SemIR::IntKind::Unsigned, size_id);
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}
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auto HandleParseNode(Context& context, Parse::FloatTypeLiteralId node_id)
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-> bool {
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auto tok_id = context.parse_tree().node_token(node_id);
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auto size_id = context.tokens().GetTypeLiteralSize(tok_id);
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auto type_inst_id = MakeFloatTypeLiteral(context, node_id, size_id);
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context.node_stack().Push(node_id, type_inst_id);
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return true;
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}
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auto HandleParseNode(Context& context, Parse::StringTypeLiteralId node_id)
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-> bool {
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auto type_inst_id = MakeStringTypeLiteral(context, node_id);
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context.node_stack().Push(node_id, type_inst_id);
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return true;
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}
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auto HandleParseNode(Context& context, Parse::TypeTypeLiteralId node_id)
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-> bool {
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auto type_inst_id = MakeTypeTypeLiteral(context, node_id);
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context.node_stack().Push(node_id, type_inst_id);
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return true;
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}
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auto HandleParseNode(Context& context, Parse::AutoTypeLiteralId node_id)
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-> bool {
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return context.TODO(node_id, "HandleAutoTypeLiteral");
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}
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} // namespace Carbon::Check
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