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fd96e0e630
* add command-line flag to enable/disable tracing output * adding missing exit for pattern variable in wrong context and a test case for it (#324) * Update executable_semantics/interpreter/interpreter.cpp comment on separate line as code Co-authored-by: Jon Meow <46229924+jonmeow@users.noreply.github.com> * fix interpreter's handling of optional else of if statement (#323) * Update pattern_variable_fail.golden due to error (#334) * Use llvm's CommandLine for parsing (#332) * GitHub testing action (#331) Co-authored-by: Chandler Carruth <chandlerc@gmail.com> * add copyright * Create a Dictionary abstraction over the raw Cons list. (#327) * Create a Dictionary abstraction over the raw Cons list. * renamed Cons and some methods of Dictionary, various other cleanup * Update executable_semantics/tracing_flag.cpp added namespace comment Co-authored-by: Jon Meow <46229924+jonmeow@users.noreply.github.com> * added a comment to cpp file Co-authored-by: Jon Meow <46229924+jonmeow@users.noreply.github.com> Co-authored-by: Dave Abrahams <dabrahams@google.com> Co-authored-by: Chandler Carruth <chandlerc@gmail.com>
39 lines
1.1 KiB
C++
39 lines
1.1 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#include <cstdio>
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#include <cstring>
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#include <iostream>
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#include "executable_semantics/syntax_helpers.h"
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#include "executable_semantics/tracing_flag.h"
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#include "llvm/Support/CommandLine.h"
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extern FILE* yyin;
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extern auto yyparse() -> int; // NOLINT(readability-identifier-naming)
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int main(int argc, char* argv[]) {
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// yydebug = 1;
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using llvm::cl::desc;
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using llvm::cl::opt;
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opt<bool> quiet_option("quiet", desc("Disable tracing"));
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opt<std::string> input_filename(llvm::cl::Positional, desc("<input file>"));
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llvm::cl::ParseCommandLineOptions(argc, argv);
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if (input_filename.getNumOccurrences() > 0) {
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Carbon::input_filename = input_filename.c_str();
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yyin = fopen(input_filename.c_str(), "r");
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if (yyin == nullptr) {
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std::cerr << "Error opening '" << input_filename
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<< "': " << strerror(errno) << std::endl;
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return 1;
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}
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}
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if (quiet_option) {
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Carbon::tracing_output = false;
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}
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return yyparse();
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}
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