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aa8a5f174d
* Replaced std::exit() with return llvm::Expected/llvm::Error<T> for expected errors like invalid syntax. * Use llvm::formatv() for formatting lexer error messages. x * 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>
59 lines
2.0 KiB
C++
59 lines
2.0 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 "executable_semantics/interpreter/exec_program.h"
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#include <variant>
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#include "common/check.h"
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#include "common/ostream.h"
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#include "executable_semantics/common/arena.h"
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#include "executable_semantics/interpreter/interpreter.h"
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#include "executable_semantics/interpreter/resolve_control_flow.h"
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#include "executable_semantics/interpreter/resolve_names.h"
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#include "executable_semantics/interpreter/type_checker.h"
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#include "llvm/Support/Error.h"
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namespace Carbon {
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auto ExecProgram(Nonnull<Arena*> arena, AST ast, bool trace) -> ErrorOr<int> {
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if (trace) {
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llvm::outs() << "********** source program **********\n";
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for (const auto decl : ast.declarations) {
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llvm::outs() << *decl;
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}
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}
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SourceLocation source_loc("<Main()>", 0);
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ast.main_call = arena->New<CallExpression>(
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source_loc, arena->New<IdentifierExpression>(source_loc, "Main"),
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arena->New<TupleLiteral>(source_loc));
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// Although name resolution is currently done once, generic programming
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// (particularly templates) may require more passes.
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if (trace) {
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llvm::outs() << "********** resolving names **********\n";
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}
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RETURN_IF_ERROR(ResolveNames(ast));
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if (trace) {
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llvm::outs() << "********** resolving control flow **********\n";
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}
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RETURN_IF_ERROR(ResolveControlFlow(ast));
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if (trace) {
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llvm::outs() << "********** type checking **********\n";
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}
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RETURN_IF_ERROR(TypeChecker(arena, trace).TypeCheck(ast));
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if (trace) {
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llvm::outs() << "\n";
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llvm::outs() << "********** type checking complete **********\n";
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for (const auto decl : ast.declarations) {
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llvm::outs() << *decl;
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}
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llvm::outs() << "********** starting execution **********\n";
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}
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ASSIGN_OR_RETURN(const int result, InterpProgram(ast, arena, trace));
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llvm::outs() << "result: " << result << "\n";
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return result;
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}
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} // namespace Carbon
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