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carbon-lang/executable_semantics/ast/function_definition.h
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Jon Meow 6e5070de18 Adapting jsiek's executable semantics tooling for commit. (#237)
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.
2021-02-19 15:25:43 -08:00

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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#ifndef EXECUTABLE_SEMANTICS_AST_FUNCTION_DEFINITION_H_
#define EXECUTABLE_SEMANTICS_AST_FUNCTION_DEFINITION_H_
#include "executable_semantics/ast/expression.h"
#include "executable_semantics/ast/statement.h"
namespace Carbon {
struct FunctionDefinition {
int line_num;
std::string name;
Expression* param_pattern;
Expression* return_type;
Statement* body;
};
auto MakeFunDef(int line_num, std::string name, Expression* ret_type,
Expression* param, Statement* body)
-> struct FunctionDefinition*;
void PrintFunDef(struct FunctionDefinition*);
void PrintFunDefDepth(struct FunctionDefinition*, int);
} // namespace Carbon
#endif // EXECUTABLE_SEMANTICS_AST_FUNCTION_DEFINITION_H_