mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
Richard Smith
fea6cf88fc
Combine the initialization, implicit conversion, and value category conversion functions into a single function. This substantially reduces the duplication between these steps, and ensures that we support the same set of conversions in all these contexts. This also fixes some issues where we would not use the proper value representation for tuples and structs after performing implicit conversions.
58 lines
2.2 KiB
C++
58 lines
2.2 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 "toolchain/check/context.h"
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#include "toolchain/check/convert.h"
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#include "toolchain/parse/node_kind.h"
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#include "toolchain/sem_ir/node.h"
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#include "toolchain/sem_ir/node_kind.h"
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namespace Carbon::Check {
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auto HandleArrayExpressionStart(Context& /*context*/,
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Parse::Node /*parse_node*/) -> bool {
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return true;
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}
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auto HandleArrayExpressionSemi(Context& context, Parse::Node parse_node)
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-> bool {
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context.node_stack().Push(parse_node);
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return true;
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}
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auto HandleArrayExpression(Context& context, Parse::Node parse_node) -> bool {
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// TODO: Handle array type with undefined bound.
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if (context.parse_tree().node_kind(context.node_stack().PeekParseNode()) ==
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Parse::NodeKind::ArrayExpressionSemi) {
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context.node_stack().PopAndIgnore();
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context.node_stack().PopAndIgnore();
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return context.TODO(parse_node, "HandleArrayExpressionWithoutBounds");
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}
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auto bound_node_id = context.node_stack().PopExpression();
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context.node_stack()
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.PopAndDiscardSoloParseNode<Parse::NodeKind::ArrayExpressionSemi>();
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auto element_type_node_id = context.node_stack().PopExpression();
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auto bound_node = context.semantics_ir().GetNode(bound_node_id);
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if (bound_node.kind() == SemIR::NodeKind::IntegerLiteral) {
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auto bound_value = context.semantics_ir().GetIntegerLiteral(
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bound_node.GetAsIntegerLiteral());
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// TODO: Produce an error if the array type is too large.
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if (bound_value.getActiveBits() <= 64) {
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context.AddNodeAndPush(
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parse_node,
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SemIR::Node::ArrayType::Make(
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parse_node, SemIR::TypeId::TypeType, bound_node_id,
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ExpressionAsType(context, parse_node, element_type_node_id)));
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return true;
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}
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}
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CARBON_DIAGNOSTIC(InvalidArrayExpression, Error, "Invalid array expression.");
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context.emitter().Emit(parse_node, InvalidArrayExpression);
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context.node_stack().Push(parse_node, SemIR::NodeId::BuiltinError);
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return true;
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}
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} // namespace Carbon::Check
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