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https://github.com/ton-blockchain/ton
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5a3e3595d6
Since I've implemented AST, now I can drop forward declarations. Instead, I traverse AST of all files and register global symbols (functions, constants, global vars) as a separate step, in advance. That's why, while converting AST to Expr/Op, all available symbols are already registered. This greatly simplifies "intermediate state" of yet unknown functions and checking them afterward. Redeclaration of local variables (inside the same scope) is now also prohibited.
90 lines
3 KiB
C++
90 lines
3 KiB
C++
/*
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This file is part of TON Blockchain Library.
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TON Blockchain Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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TON Blockchain Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "src-file.h"
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#include "symtable.h"
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#include "td/utils/Status.h"
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#include <set>
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#include <string>
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namespace tolk {
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extern std::string tolk_version;
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class GlobalPragma {
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std::string name_;
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bool enabled_ = false;
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const char* deprecated_from_v_ = nullptr;
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public:
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explicit GlobalPragma(std::string name) : name_(std::move(name)) { }
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const std::string& name() const { return name_; }
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bool enabled() const { return enabled_; }
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void enable(SrcLocation loc);
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void always_on_and_deprecated(const char* deprecated_from_v);
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};
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// CompilerSettings contains settings that can be passed via cmd line or (partially) wasm envelope.
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// They are filled once at start and are immutable since the compilation started.
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struct CompilerSettings {
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enum class FsReadCallbackKind { Realpath, ReadFile };
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using FsReadCallback = std::function<td::Result<std::string>(FsReadCallbackKind, const char*)>;
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int verbosity = 0;
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int optimization_level = 2;
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bool stack_layout_comments = true;
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std::string entrypoint_filename;
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std::string output_filename;
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std::string boc_output_filename;
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std::string stdlib_filename;
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FsReadCallback read_callback;
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};
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// CompilerState contains a mutable state that is changed while the compilation is going on.
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// It's a "global state" of all compilation.
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// Historically, in FunC, this global state was spread along many global C++ variables.
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// Now, no global C++ variables except `CompilerState G` are present.
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struct CompilerState {
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CompilerSettings settings;
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SymTable symbols;
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int scope_level = 0;
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SymDef* sym_def[SymTable::SIZE_PRIME + 1]{};
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SymDef* global_sym_def[SymTable::SIZE_PRIME + 1]{};
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std::vector<std::pair<int, SymDef>> symbol_stack;
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std::vector<SrcLocation> scope_opened_at;
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std::vector<SymDef*> all_code_functions, all_global_vars, all_get_methods, all_constants;
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AllRegisteredSrcFiles all_src_files;
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std::string generated_from;
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GlobalPragma pragma_allow_post_modification{"allow-post-modification"};
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GlobalPragma pragma_compute_asm_ltr{"compute-asm-ltr"};
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GlobalPragma pragma_remove_unused_functions{"remove-unused-functions"};
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bool is_verbosity(int gt_eq) const { return settings.verbosity >= gt_eq; }
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};
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extern CompilerState G;
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} // namespace tolk
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