Files
carbon-lang/executable_semantics/syntax/parse.h
T
Jon Meow b87747306f Add the ability to pipe trace output to a file. (#1183)
Breaks `--trace` into two flags:

- `--parser_debug`, which sets the parser debug level (which I haven't dug into piping with `--trace`, but seemed likely to be troublesome)
- `--trace_file`, which now the type checker and interpreter will use for trace information (note compile errors should use a different channel)

Most of the file edits are just mechanical testdata flag updates: `sed -i 's/--trace/--parser_debug --trace_file=-/' testdata/**/*.carbon`

To explain the output paths:

- parse/compile errors: stderr
- print() calls: stdout
- parser tracing: `--parser_debug` option, stdout (formerly stdout if `--trace`)
- type check/compile tracing: `--trace_file=<file>`, giving `-` uses stdout (formerly stdout if `--trace`)
- return code of executed Carbon code: `--trace_file` if set, stdout if not (formerly stdout always)
2022-04-14 11:20:56 -07:00

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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_SYNTAX_PARSE_H_
#define EXECUTABLE_SEMANTICS_SYNTAX_PARSE_H_
#include <string>
#include <variant>
#include "executable_semantics/ast/ast.h"
#include "executable_semantics/common/arena.h"
namespace Carbon {
// Returns the AST representing the contents of the named file, or an error code
// if parsing fails. Allocations go into the provided arena.
auto Parse(Nonnull<Arena*> arena, std::string_view input_file_name,
bool parser_debug) -> ErrorOr<Carbon::AST>;
// Equivalent to `Parse`, but parses the contents of `file_contents`.
// `input_file_name` is used only for reporting source locations, and does
// not need to name a real file.
auto ParseFromString(Nonnull<Arena*> arena, std::string_view input_file_name,
std::string_view file_contents, bool parser_debug)
-> ErrorOr<Carbon::AST>;
} // namespace Carbon
#endif // EXECUTABLE_SEMANTICS_SYNTAX_PARSE_H_