mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
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.
163 lines
5.2 KiB
C++
163 lines
5.2 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/semantics/semantics_ir_factory.h"
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#include <gmock/gmock.h>
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#include <gtest/gtest.h>
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#include "toolchain/diagnostics/mocks.h"
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#include "toolchain/lexer/tokenized_buffer.h"
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#include "toolchain/parser/parse_tree.h"
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#include "toolchain/semantics/semantics_ir_test_helpers.h"
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#include "toolchain/source/source_buffer.h"
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namespace Carbon::Testing {
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namespace {
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using ::testing::_;
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using ::testing::ElementsAre;
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using ::testing::IsEmpty;
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using ::testing::Optional;
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using ::testing::StrEq;
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class SemanticsIRFactoryTest : public ::testing::Test {
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protected:
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void Build(llvm::Twine t) {
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source_buffer.emplace(std::move(*SourceBuffer::CreateFromText(t)));
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tokenized_buffer = TokenizedBuffer::Lex(*source_buffer, consumer);
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EXPECT_FALSE(tokenized_buffer->has_errors());
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parse_tree = ParseTree::Parse(*tokenized_buffer, consumer);
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EXPECT_FALSE(parse_tree->has_errors());
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SemanticsIRForTest::set_semantics(
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SemanticsIRFactory::Build(*tokenized_buffer, *parse_tree));
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}
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~SemanticsIRFactoryTest() override { SemanticsIRForTest::clear(); }
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auto root_block() const -> llvm::ArrayRef<Semantics::NodeRef> {
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return SemanticsIRForTest::semantics().root_block();
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}
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llvm::Optional<SourceBuffer> source_buffer;
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llvm::Optional<TokenizedBuffer> tokenized_buffer;
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llvm::Optional<ParseTree> parse_tree;
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MockDiagnosticConsumer consumer;
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};
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/*
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TEST_F(SemanticsIRFactoryTest, SimpleProgram) {
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EXPECT_CALL(consumer, HandleDiagnostic(_)).Times(0);
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Build(R"(// package FactoryTest api;
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fn Add(x: i32, y: i32) -> i32 {
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return x + y;
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}
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fn Main() -> i32 {
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var x: i32 = Add(3, 10);
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x *= 5;
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return x;
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}
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)");
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EXPECT_THAT(
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SemanticsIRForTest::semantics().root_block(),
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ElementsAre(Function(Eq("Add"),
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ElementsAre(PatternBinding(Eq("x"), Literal("i32")),
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PatternBinding(Eq("y"), Literal("i32"))),
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Optional(Literal("i32"))),
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Function(Eq("Main"), IsEmpty(), Optional(Literal("i32")))));
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}
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*/
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TEST_F(SemanticsIRFactoryTest, Empty) {
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EXPECT_CALL(consumer, HandleDiagnostic(_)).Times(0);
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Build("");
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EXPECT_THAT(root_block(), IsEmpty());
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}
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TEST_F(SemanticsIRFactoryTest, FunctionBasic) {
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EXPECT_CALL(consumer, HandleDiagnostic(_)).Times(0);
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Build("fn Foo() {}");
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EXPECT_THAT(root_block(),
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ElementsAre(Function(0, IsEmpty()), SetName(StrEq("Foo"), 0)));
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}
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/*
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TEST_F(SemanticsIRFactoryTest, FunctionParams) {
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EXPECT_CALL(consumer, HandleDiagnostic(_)).Times(0);
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Build("fn Foo(x: i32, y: i64) {}");
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ExpectRootBlock(
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ElementsAre(Function(Eq("Foo"),
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ElementsAre(PatternBinding(Eq("x"), Literal("i32")),
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PatternBinding(Eq("y"), Literal("i64"))),
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IsNone(), StatementBlock(IsEmpty(), IsEmpty()))),
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UnorderedElementsAre(MappedNode("Foo", FunctionName("Foo"))));
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}
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*/
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/*
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TEST_F(SemanticsIRFactoryTest, FunctionReturnType) {
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EXPECT_CALL(consumer, HandleDiagnostic(_)).Times(0);
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Build("fn Foo() -> i32 {}");
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EXPECT_THAT(root_block(), ElementsAre(Function(0, IsEmpty()),
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SetName(StrEq("Foo"), 0)));
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}
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*/
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TEST_F(SemanticsIRFactoryTest, FunctionOrder) {
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EXPECT_CALL(consumer, HandleDiagnostic(_)).Times(0);
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Build(R"(fn Foo() {}
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fn Bar() {}
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fn Bar() {}
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)");
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EXPECT_THAT(root_block(),
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ElementsAre(Function(2, IsEmpty()), SetName(StrEq("Foo"), 2),
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Function(1, IsEmpty()), SetName(StrEq("Bar"), 1),
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Function(0, IsEmpty()), SetName(StrEq("Bar"), 0)));
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}
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TEST_F(SemanticsIRFactoryTest, TrivialReturn) {
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EXPECT_CALL(consumer, HandleDiagnostic(_)).Times(0);
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Build(R"(fn Main() {
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return;
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}
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)");
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EXPECT_THAT(root_block(),
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ElementsAre(Function(0, ElementsAre(Return(IsNone()))),
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SetName(StrEq("Main"), 0)));
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}
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TEST_F(SemanticsIRFactoryTest, ReturnLiteral) {
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EXPECT_CALL(consumer, HandleDiagnostic(_)).Times(0);
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Build(R"(fn Main() {
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return 12;
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}
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)");
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EXPECT_THAT(root_block(),
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ElementsAre(Function(0, ElementsAre(IntegerLiteral(1, 12),
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Return(Optional(1)))),
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SetName(StrEq("Main"), 0)));
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}
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TEST_F(SemanticsIRFactoryTest, ReturnArithmetic) {
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EXPECT_CALL(consumer, HandleDiagnostic(_)).Times(0);
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Build(R"(fn Main() {
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return 12 + 34;
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}
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)");
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EXPECT_THAT(
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root_block(),
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ElementsAre(
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Function(0,
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ElementsAre(IntegerLiteral(3, 12), IntegerLiteral(2, 34),
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BinaryOperator(
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1, Semantics::BinaryOperator::Op::Add, 3, 2),
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Return(Optional(1)))),
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SetName(StrEq("Main"), 0)));
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}
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} // namespace
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} // namespace Carbon::Testing
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