mirror of
https://github.com/carbon-language/carbon-lang.git
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Jon Meow
6e5070de18
Notes versus what jsiek wrote:
- This adopts Bazel for building.
- System-local versions of bison/flex are used. I found https://github.com/jmillikin/rules_bison, but those print a lot of warnings (things like -Wsign-compare IIRC) which makes builds hard to read. Plus I think the underlying bison_cc_library rule didn't work, so this would really only get a hermetic bison/flex build (helpful, but didn't seem worth more time).
- I'm adding in a .bazeliskrc to push a somewhat more standard choice of bazel versions. I noticed I was getting unstable versions by default, possible Google-specific, but seemed good to include.
- The `-lpthread` kludge.
- Turn all of the examples into golden tests.
- Including adding a golden test rule.
- Fixed various style guide issues. For example:
- Fixing function names to be CamelCase instead of snake_case (https://google.github.io/styleguide/cppguide.html#Function_Names)
- Removed exception use (https://google.github.io/styleguide/cppguide.html#Exceptions)
- File name fixes (https://github.com/carbon-language/carbon-lang/blob/trunk/docs/project/cpp_style_guide.md#file-names)
- Dropped `using` of `std` names -- I believe this is preferred (maybe we should be explicit about this in the Carbon style guide)
- Switched `enum` uses to `enum class` for ease-of-identification.
- Spent some time breaking out files to hopefully be easier to read/edit pieces, and understand relations between structs.
- Added `code requires` to `syntax.ypp` to address include issues
Possibly other things -- but the fundamental structure is, I believe, unchanged. I put in the golden tests pretty early to ensure I wasn't mutating output/results.
65 lines
2.0 KiB
C++
65 lines
2.0 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 "executable_semantics/ast/declaration.h"
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#include <iostream>
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namespace Carbon {
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auto MakeFunDecl(FunctionDefinition* f) -> Declaration* {
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auto* d = new Declaration();
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d->tag = DeclarationKind::FunctionDeclaration;
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d->u.fun_def = f;
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return d;
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}
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auto MakeStructDecl(int line_num, std::string name, std::list<Member*>* members)
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-> Declaration* {
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auto* d = new Declaration();
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d->tag = DeclarationKind::StructDeclaration;
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d->u.struct_def = new StructDefinition();
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d->u.struct_def->line_num = line_num;
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d->u.struct_def->name = new std::string(std::move(name));
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d->u.struct_def->members = members;
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return d;
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}
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auto MakeChoiceDecl(int line_num, std::string name,
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std::list<std::pair<std::string, Expression*>>* alts)
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-> Declaration* {
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auto* d = new Declaration();
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d->tag = DeclarationKind::ChoiceDeclaration;
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d->u.choice_def.line_num = line_num;
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d->u.choice_def.name = new std::string(std::move(name));
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d->u.choice_def.alternatives = alts;
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return d;
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}
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void PrintDecl(Declaration* d) {
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switch (d->tag) {
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case DeclarationKind::FunctionDeclaration:
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PrintFunDef(d->u.fun_def);
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break;
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case DeclarationKind::StructDeclaration:
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std::cout << "struct " << *d->u.struct_def->name << " {" << std::endl;
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for (auto& member : *d->u.struct_def->members) {
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PrintMember(member);
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}
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std::cout << "}" << std::endl;
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break;
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case DeclarationKind::ChoiceDeclaration:
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std::cout << "choice " << *d->u.choice_def.name << " {" << std::endl;
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for (auto& alternative : *d->u.choice_def.alternatives) {
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std::cout << "alt " << alternative.first << " ";
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PrintExp(alternative.second);
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std::cout << ";" << std::endl;
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}
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std::cout << "}" << std::endl;
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break;
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}
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}
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} // namespace Carbon
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