forked from OSchip/llvm-project
91 lines
2.6 KiB
C++
91 lines
2.6 KiB
C++
//===-- lib/Parser/user-state.cpp -----------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "flang/Parser/user-state.h"
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#include "stmt-parser.h"
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#include "type-parsers.h"
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#include "flang/Parser/parse-state.h"
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#include <optional>
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namespace Fortran::parser {
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std::optional<Success> StartNewSubprogram::Parse(ParseState &state) {
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if (auto *ustate{state.userState()}) {
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ustate->NewSubprogram();
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}
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return Success{};
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}
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std::optional<CapturedLabelDoStmt::resultType> CapturedLabelDoStmt::Parse(
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ParseState &state) {
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static constexpr auto parser{statement(indirect(Parser<LabelDoStmt>{}))};
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auto result{parser.Parse(state)};
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if (result) {
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if (auto *ustate{state.userState()}) {
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ustate->NewDoLabel(std::get<Label>(result->statement.value().t));
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}
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}
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return result;
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}
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std::optional<EndDoStmtForCapturedLabelDoStmt::resultType>
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EndDoStmtForCapturedLabelDoStmt::Parse(ParseState &state) {
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static constexpr auto parser{
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statement(indirect(construct<EndDoStmt>("END DO" >> maybe(name))))};
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if (auto enddo{parser.Parse(state)}) {
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if (enddo->label) {
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if (const auto *ustate{state.userState()}) {
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if (ustate->IsDoLabel(enddo->label.value())) {
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return enddo;
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}
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}
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}
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}
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return std::nullopt;
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}
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std::optional<Success> EnterNonlabelDoConstruct::Parse(ParseState &state) {
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if (auto *ustate{state.userState()}) {
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ustate->EnterNonlabelDoConstruct();
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}
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return {Success{}};
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}
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std::optional<Success> LeaveDoConstruct::Parse(ParseState &state) {
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if (auto ustate{state.userState()}) {
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ustate->LeaveDoConstruct();
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}
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return {Success{}};
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}
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std::optional<Name> OldStructureComponentName::Parse(ParseState &state) {
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if (std::optional<Name> n{name.Parse(state)}) {
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if (const auto *ustate{state.userState()}) {
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if (ustate->IsOldStructureComponent(n->source)) {
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return n;
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}
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}
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}
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return std::nullopt;
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}
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std::optional<DataComponentDefStmt> StructureComponents::Parse(
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ParseState &state) {
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static constexpr auto stmt{Parser<DataComponentDefStmt>{}};
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std::optional<DataComponentDefStmt> defs{stmt.Parse(state)};
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if (defs) {
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if (auto *ustate{state.userState()}) {
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for (const auto &decl : std::get<std::list<ComponentDecl>>(defs->t)) {
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ustate->NoteOldStructureComponent(std::get<Name>(decl.t).source);
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}
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}
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}
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return defs;
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}
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} // namespace Fortran::parser
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