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https://github.com/carbon-language/carbon-lang.git
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Dave AbrahamsandGeoff Romer
07a37933c6
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>
44 lines
1.4 KiB
C++
44 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/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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#include "executable_semantics/tracing_flag.h"
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namespace Carbon {
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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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}
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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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std::cout << "********** starting execution **********" << std::endl;
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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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