Files
carbon-lang/executable_semantics/syntax/parse_and_lex_context.cpp
T
Dave AbrahamsandGeoff Romer 07a37933c6 [executable semantics] Add Syntax driver (#362)
Slowly bringing this into line with Bison's C++ example parser
so we can use strong semantic values for symbols rather than
leaking pointers.  First step is to thread a `ParseAndLexContext` 
object through the whole syntactic analysis state, like the 
example has.  In the example, it's called `driver`.

Co-authored-by: Geoff Romer <gromer@google.com>
2021-03-09 19:46:30 -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
#include "executable_semantics/syntax/parse_and_lex_context.h"
#include <cstring>
#include <iostream>
#include "executable_semantics/tracing_flag.h"
// Writes a syntax error diagnostic, containing message, for the input file at
// the given line, to standard error.
auto Carbon::ParseAndLexContext::PrintDiagnostic(const char* message,
int line_num) -> void {
std::cerr << inputFileName << ":" << line_num << ": " << message << std::endl;
exit(-1); // TODO: do we really want this here? It makes the comment and the
// name a lie, and renders some of the other yyparse() result
// propagation code moot.
}