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Start adding builtins to SemanticsIR (#2356)

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This starts adding builtins with TypeType and IntegerLiteralType. Note, structurally that's all they are, and not directly accessible in any way.

Adds a type field to SemanticsNode. Now, IntegerLiteralType can be identified as having type=TypeType, and IntegerLiteral as type=IntegerLiteralType. The current iteration doesn't do anything for type propagation, because I wanted to avoid making this too big.

This also switches the Identifier IR to instead BindName, with some side-effects. I'd been trying to think how to provide a name for TypeType, and switching around how things worked seemed like a better approach. And while I think it's the right direction (e.g., alias should just be a BindName), I also realized I don't need to name TypeType: there's probably a keyword to refer to the builtin, so it shouldn't use regular name lookup.
This commit is contained in:
Jon Ross-Perkins
2022-10-28 14:16:51 -07:00
committed by GitHub
parent 0219218b01
commit 57090142e8
18 changed files with 410 additions and 81 deletions
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toolchain/semantics/testdata/function/basic.carbon
Vendored
+8 -3
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@@ -4,6 +4,11 @@
//
// AUTOUPDATE
// RUN: %{carbon-run-semantics}
// CHECK:STDOUT: cross_reference_irs.size == 2,
// CHECK:STDOUT: cross_references = {
// CHECK:STDOUT: node_xref0 = "xref(ir0, block0, node0)";
// CHECK:STDOUT: node_xref1 = "xref(ir0, block0, node1)";
// CHECK:STDOUT: },
// CHECK:STDOUT: identifiers = {
// CHECK:STDOUT: ident0 = "Foo";
// CHECK:STDOUT: },
@@ -11,9 +16,9 @@
// CHECK:STDOUT: },
// CHECK:STDOUT: node_blocks = {
// CHECK:STDOUT: block0 = {
// CHECK:STDOUT: node0 = Identifier(ident0);
// CHECK:STDOUT: node1 = FunctionDeclaration(node0);
// CHECK:STDOUT: node2 = FunctionDefinition(node1, block1);
// CHECK:STDOUT: node0 = FunctionDeclaration();
// CHECK:STDOUT: node1 = BindName(ident0, node0);
// CHECK:STDOUT: node2 = FunctionDefinition(node0, block1);
// CHECK:STDOUT: },
// CHECK:STDOUT: block1 = {
// CHECK:STDOUT: },