Files
carbon-lang/executable_semantics/interpreter/exec_program.h
T
aa8a5f174d Replaced std::exit() with return Carbon::ErrorOr for expected errors like invalid syntax (#1120)
* Replaced std::exit() with return llvm::Expected/llvm::Error<T> for expected errors like invalid syntax.

* Use llvm::formatv() for formatting lexer error messages.
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* Addresed merge errors.

* Fixed impl scope.

* Made ErrorBuilder::operator<< nodiscard, to catch code forgetting 'return' in 'return FATAL_COMPILATION_ERROR()'.

* FatalComplationError() -> ParseAndLexContext::RecordLexerError().
Other usages of ERROR_TOKEN in lexer.lpp were actually supposed to be END_OF_FILE.

* Update executable_semantics/syntax/parse_and_lex_context.h

Co-authored-by: Jon Meow <jperkins@google.com>

* Code review fixes.

* Update executable_semantics/syntax/parser.ypp

Co-authored-by: Jon Meow <jperkins@google.com>

* More code review fixes.

* Update executable_semantics/interpreter/type_checker.h

Co-authored-by: Jon Meow <jperkins@google.com>

* Yet more code review fixes...

* Update executable_semantics/syntax/lexer.lpp

Co-authored-by: Jon Meow <jperkins@google.com>

* code review comments

* Update executable_semantics/interpreter/interpreter.cpp

Co-authored-by: Geoff Romer <gromer@google.com>

* Apply suggestions from code review

Co-authored-by: Jon Meow <jperkins@google.com>

* Update executable_semantics/syntax/lexer.lpp

Co-authored-by: Jon Meow <jperkins@google.com>

* code review

* code review

* Apply suggestions from code review

Co-authored-by: Jon Meow <jperkins@google.com>

* formatted code

* review comments

* Switched to the new ErrorOr<V> error implementation

* code review comments

* fixed comment

* restored ostream.h as #976 makes the change unnecesary

* review comments

Co-authored-by: Jon Meow <jperkins@google.com>
Co-authored-by: Geoff Romer <gromer@google.com>
2022-03-22 16:17:04 -04:00

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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
// Helpers should be added here when logic in syntax.ypp is more than a single
// statement. The intent is to minimize the amount of C++ in the .ypp file, to
// improve ease of maintenance.
#ifndef EXECUTABLE_SEMANTICS_INTERPRETER_EXEC_PROGRAM_H_
#define EXECUTABLE_SEMANTICS_INTERPRETER_EXEC_PROGRAM_H_
#include "executable_semantics/ast/ast.h"
namespace Carbon {
// Runs the top-level declaration list.
auto ExecProgram(Nonnull<Arena*> arena, AST ast, bool trace) -> ErrorOr<int>;
} // namespace Carbon
#endif // EXECUTABLE_SEMANTICS_INTERPRETER_EXEC_PROGRAM_H_