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Switch types to a SemanticsTypeId. (#2854)

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This switches types to using SemanticsTypeId instead of SemanticsNodeId, and lowering pre-builds its list of types. The empty tuple type is special-cased because we don't want to emit it unless it's in-use, but as the implicit return for functions, it's frequently used. Callables use invalid to indicate the implicit return, and that seems undesirable to change due to the size increase.
This commit is contained in:
Jon Ross-Perkins
2023-05-26 11:19:49 -07:00
committed by GitHub
parent a2156f5a4b
commit 1497e1333d
71 changed files with 645 additions and 523 deletions
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toolchain/semantics/semantics_handle.cpp
+6 -6
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@@ -75,7 +75,8 @@ auto SemanticsHandleDesignatorExpression(SemanticsContext& context,
auto base_id = context.node_stack().PopForNodeId();
auto base = context.semantics().GetNode(base_id);
auto base_type = context.semantics().GetNode(base.type_id());
auto base_type =
context.semantics().GetNode(context.semantics().GetType(base.type_id()));
switch (base_type.kind()) {
case SemanticsNodeKind::StructType: {
@@ -95,7 +96,7 @@ auto SemanticsHandleDesignatorExpression(SemanticsContext& context,
"Type `{0}` does not have a member `{1}`.", std::string,
llvm::StringRef);
context.emitter().Emit(parse_node, DesignatorExpressionNameNotFound,
context.semantics().StringifyNode(base.type_id()),
context.semantics().StringifyType(base.type_id()),
context.semantics().GetString(name_id));
break;
}
@@ -104,7 +105,7 @@ auto SemanticsHandleDesignatorExpression(SemanticsContext& context,
"Type `{0}` does not support designator expressions.",
std::string);
context.emitter().Emit(parse_node, DesignatorExpressionUnsupported,
context.semantics().StringifyNode(base.type_id()));
context.semantics().StringifyType(base.type_id()));
break;
}
}
@@ -364,8 +365,7 @@ auto SemanticsHandlePatternBinding(SemanticsContext& context,
ParseTree::Node parse_node) -> bool {
auto [type_node, parsed_type_id] =
context.node_stack().PopForParseNodeAndNodeId();
SemanticsNodeId cast_type_id =
context.ExpressionAsType(type_node, parsed_type_id);
auto cast_type_id = context.ExpressionAsType(type_node, parsed_type_id);
// Get the name.
auto name_node = context.node_stack().PopForSoloParseNode();
@@ -414,7 +414,7 @@ auto SemanticsHandleReturnStatement(SemanticsContext& context,
"Must return a {0}.", std::string);
context.emitter()
.Build(parse_node, ReturnStatementMissingExpression,
context.semantics().StringifyNode(callable.return_type_id))
context.semantics().StringifyType(callable.return_type_id))
.Emit();
}