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Jon Ross-Perkins
a23f15e901
This is how I'm interpreting discussion:
- Basic elements are getting set to an ID.
- SetName exists to assign a name (which can then be referred to later with an identifier expression) to an ID.
- Expressions are broken down into a series of operations which operate on IDs.
So with something like the last test:
```
fn Main() { return 12 + 34; }
```
This becomes:
```
Function(%0,
{IntegerLiteral(%3, 12),
IntegerLiteral(%2, 34),
BinaryOperator(%1, +, %3, %2),
Return(%1),
})
SetName(`Main`, %0)
```
Note I'm treating blocks as fairly equal to the top of a file now, and basically eliminating boundaries between things. That's because we have discussed also supporting code like:
```
fn Foo() {
fn Bar() {}
Bar();
}
```
Here a declaration of a function is occurring inside a code block, so it felt like eliminating the difference was the best choice.
I know you'd commented on the separation of nodes to individual files before; I still think we're going to have a lot of different types of nodes, and so separating them out into individual files makes them easier to browse.
38 lines
1.3 KiB
C++
38 lines
1.3 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/semantics/semantics_ir.h"
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#include "common/check.h"
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#include "llvm/Support/FormatVariadic.h"
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#include "toolchain/lexer/tokenized_buffer.h"
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namespace Carbon {
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void SemanticsIR::Print(llvm::raw_ostream& out,
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Semantics::NodeRef node_ref) const {
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switch (node_ref.kind()) {
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case Semantics::NodeKind::BinaryOperator:
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nodes_.Get<Semantics::BinaryOperator>(node_ref).Print(out);
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return;
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case Semantics::NodeKind::Function:
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nodes_.Get<Semantics::Function>(node_ref).Print(
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out, [&](Semantics::NodeRef other) { Print(out, other); });
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return;
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case Semantics::NodeKind::IntegerLiteral:
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nodes_.Get<Semantics::IntegerLiteral>(node_ref).Print(out);
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return;
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case Semantics::NodeKind::Return:
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nodes_.Get<Semantics::Return>(node_ref).Print(out);
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return;
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case Semantics::NodeKind::SetName:
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nodes_.Get<Semantics::SetName>(node_ref).Print(out);
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return;
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case Semantics::NodeKind::Invalid:
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CARBON_FATAL() << "Invalid NodeRef kind";
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}
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}
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} // namespace Carbon
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