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carbon-lang/executable_semantics/syntax/parse_and_lex_context.cpp
T
Jon MeowandGeoff Romer 250ce4ab00 Add string parsing and a print builtin (#721)
It was in my mind to add String in order to support libraries in `package`.  `print` is added in order to have a String go to stdout. I've tried to do `print` in a way that won't be too hard to add other printable types, but it's probably also somewhat optional here -- that is, if desired, I could remove it. But it was a lot easier to doublecheck `\n` behavior with it, and I suspect it'll be helpful in other tests if it supports more value types.

On the side, this also fixes dereferencing in Pattern/Expression Print() calls, which I was noticing printing pointers instead of values. This may be another argument for moving away from passing pointers, since this seems to be a difficult-to-catch error.

Co-authored-by: Geoff Romer <gromer@google.com>
2021-08-11 13:14:05 -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
#include "executable_semantics/syntax/parse_and_lex_context.h"
namespace Carbon {
// Writes a syntax error diagnostic, containing message, for the input file at
// the given line, to standard error.
auto ParseAndLexContext::PrintDiagnostic(const std::string& message,
int line_num) -> void {
// TODO: Do we really want this to be fatal? It makes the comment and the
// name a lie, and renders some of the other yyparse() result propagation code
// moot.
FATAL_COMPILATION_ERROR(line_num) << message;
}
} // namespace Carbon