mirror of
https://github.com/carbon-language/carbon-lang.git
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Jeremy G. Siek
bf6bb800c4
* improve abstraction for AssocList, fix bug in optional else * add flag for tracing output, clean up code for output * turned off tracing by default, updated goldens, removed two examples that use pointers, shouldn't have been there yet
50 lines
1.4 KiB
C++
50 lines
1.4 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/syntax_helpers.h"
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#include <iostream>
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#include "executable_semantics/interpreter/interpreter.h"
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#include "executable_semantics/interpreter/typecheck.h"
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namespace Carbon {
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bool tracing_output = false;
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char* input_filename = nullptr;
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void PrintSyntaxError(char* error, int line_num) {
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std::cerr << input_filename << ":" << line_num << ": " << error << std::endl;
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exit(-1);
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}
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void ExecProgram(std::list<Declaration>* fs) {
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if (tracing_output) {
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std::cout << "********** source program **********" << std::endl;
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for (const auto& decl : *fs) {
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decl.Print();
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std::cout << "********** type checking **********" << std::endl;
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}
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state = new State(); // Compile-time state.
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std::pair<TypeEnv, Env> p = TopLevel(fs);
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TypeEnv top = p.first;
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Env ct_top = p.second;
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std::list<Declaration> new_decls;
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for (const auto& decl : *fs) {
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new_decls.push_back(decl.TypeChecked(top, ct_top));
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}
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if (tracing_output) {
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std::cout << std::endl;
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std::cout << "********** type checking complete **********" << std::endl;
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for (const auto& decl : new_decls) {
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decl.Print();
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}
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}
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int result = InterpProgram(&new_decls);
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std::cout << "result: " << result << std::endl;
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}
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} // namespace Carbon
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