Shell: Move to Userland/Shell/

1 files changed, 245 insertions, 0 deletions

diff --git a/Userland/Shell/NodeVisitor.cpp b/Userland/Shell/NodeVisitor.cpp
new file mode 100644
index 0000000000..af55be40d1
--- /dev/null
+++ b/Userland/Shell/NodeVisitor.cpp
@@ -0,0 +1,245 @@
+/*
+ * Copyright (c) 2020, the SerenityOS developers.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "NodeVisitor.h"
+#include "AST.h"
+
+namespace Shell::AST {
+
+void NodeVisitor::visit(const AST::PathRedirectionNode* node)
+{
+    node->path()->visit(*this);
+}
+
+void NodeVisitor::visit(const AST::And* node)
+{
+    node->left()->visit(*this);
+    node->right()->visit(*this);
+}
+
+void NodeVisitor::visit(const AST::ListConcatenate* node)
+{
+    for (auto& subnode : node->list())
+        subnode->visit(*this);
+}
+
+void NodeVisitor::visit(const AST::Background* node)
+{
+    node->command()->visit(*this);
+}
+
+void NodeVisitor::visit(const AST::BarewordLiteral*)
+{
+}
+
+void NodeVisitor::visit(const AST::BraceExpansion* node)
+{
+    for (auto& entry : node->entries())
+        entry.visit(*this);
+}
+
+void NodeVisitor::visit(const AST::CastToCommand* node)
+{
+    node->inner()->visit(*this);
+}
+
+void NodeVisitor::visit(const AST::CastToList* node)
+{
+    if (node->inner())
+        node->inner()->visit(*this);
+}
+
+void NodeVisitor::visit(const AST::CloseFdRedirection*)
+{
+}
+
+void NodeVisitor::visit(const AST::CommandLiteral*)
+{
+}
+
+void NodeVisitor::visit(const AST::Comment*)
+{
+}
+
+void NodeVisitor::visit(const AST::ContinuationControl*)
+{
+}
+
+void NodeVisitor::visit(const AST::DynamicEvaluate* node)
+{
+    node->inner()->visit(*this);
+}
+
+void NodeVisitor::visit(const AST::DoubleQuotedString* node)
+{
+    if (node->inner())
+        node->inner()->visit(*this);
+}
+
+void NodeVisitor::visit(const AST::Fd2FdRedirection*)
+{
+}
+
+void NodeVisitor::visit(const AST::FunctionDeclaration* node)
+{
+    if (node->block())
+        node->block()->visit(*this);
+}
+
+void NodeVisitor::visit(const AST::ForLoop* node)
+{
+    if (node->iterated_expression())
+        node->iterated_expression()->visit(*this);
+    if (node->block())
+        node->block()->visit(*this);
+}
+
+void NodeVisitor::visit(const AST::Glob*)
+{
+}
+
+void NodeVisitor::visit(const AST::Execute* node)
+{
+    node->command()->visit(*this);
+}
+
+void NodeVisitor::visit(const AST::IfCond* node)
+{
+    node->condition()->visit(*this);
+    if (node->true_branch())
+        node->true_branch()->visit(*this);
+    if (node->false_branch())
+        node->false_branch()->visit(*this);
+}
+
+void NodeVisitor::visit(const AST::Join* node)
+{
+    node->left()->visit(*this);
+    node->right()->visit(*this);
+}
+
+void NodeVisitor::visit(const AST::MatchExpr* node)
+{
+    node->matched_expr()->visit(*this);
+    for (auto& entry : node->entries()) {
+        for (auto& option : entry.options)
+            option.visit(*this);
+        if (entry.body)
+            entry.body->visit(*this);
+    }
+}
+
+void NodeVisitor::visit(const AST::Or* node)
+{
+    node->left()->visit(*this);
+    node->right()->visit(*this);
+}
+
+void NodeVisitor::visit(const AST::Pipe* node)
+{
+    node->left()->visit(*this);
+    node->right()->visit(*this);
+}
+
+void NodeVisitor::visit(const AST::Range* node)
+{
+    node->start()->visit(*this);
+    node->end()->visit(*this);
+}
+
+void NodeVisitor::visit(const AST::ReadRedirection* node)
+{
+    visit(static_cast<const AST::PathRedirectionNode*>(node));
+}
+
+void NodeVisitor::visit(const AST::ReadWriteRedirection* node)
+{
+    visit(static_cast<const AST::PathRedirectionNode*>(node));
+}
+
+void NodeVisitor::visit(const AST::Sequence* node)
+{
+    node->left()->visit(*this);
+    node->right()->visit(*this);
+}
+
+void NodeVisitor::visit(const AST::Subshell* node)
+{
+    if (node->block())
+        node->block()->visit(*this);
+}
+
+void NodeVisitor::visit(const AST::SimpleVariable*)
+{
+}
+
+void NodeVisitor::visit(const AST::SpecialVariable*)
+{
+}
+
+void NodeVisitor::visit(const AST::Juxtaposition* node)
+{
+    node->left()->visit(*this);
+    node->right()->visit(*this);
+}
+
+void NodeVisitor::visit(const AST::StringLiteral*)
+{
+}
+
+void NodeVisitor::visit(const AST::StringPartCompose* node)
+{
+    node->left()->visit(*this);
+    node->right()->visit(*this);
+}
+
+void NodeVisitor::visit(const AST::SyntaxError*)
+{
+}
+
+void NodeVisitor::visit(const AST::Tilde*)
+{
+}
+
+void NodeVisitor::visit(const AST::VariableDeclarations* node)
+{
+    for (auto& entry : node->variables()) {
+        entry.name->visit(*this);
+        entry.value->visit(*this);
+    }
+}
+
+void NodeVisitor::visit(const AST::WriteAppendRedirection* node)
+{
+    visit(static_cast<const AST::PathRedirectionNode*>(node));
+}
+
+void NodeVisitor::visit(const AST::WriteRedirection* node)
+{
+    visit(static_cast<const AST::PathRedirectionNode*>(node));
+}
+
+}