mirror of
https://github.com/SerenityOS/serenity
synced 2024-07-22 02:26:11 +00:00
3048274f5e
Closes #4283. Heredocs are implemented in a way that makes them feel more like a string (and not a weird redirection, a la bash). There are two tunables, whether the string is dedented (`<<-` vs `<<~`) and whether it allows interpolation (quoted key vs not). To the familiar people, this is how Ruby handles them, and I feel is the most elegant heredoc syntax. Unlike the oddjob that is bash, heredocs are treated exactly as normal strings, and can be used _anywhere_ where a string can be used. They are *required* to appear in the same order as used after a newline is seen when parsing the sequence that the heredoc is used in. For instance: ```sh echo <<-doc1 <<-doc2 | blah blah contents for doc1 doc1 contents for doc2 doc2 ``` The typical nice errors are also implemented :^)
65 lines
2.4 KiB
C++
65 lines
2.4 KiB
C++
/*
|
|
* Copyright (c) 2020, the SerenityOS developers.
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "Forward.h"
|
|
|
|
namespace Shell::AST {
|
|
|
|
class NodeVisitor {
|
|
public:
|
|
virtual void visit(const AST::PathRedirectionNode*);
|
|
virtual void visit(const AST::And*);
|
|
virtual void visit(const AST::ListConcatenate*);
|
|
virtual void visit(const AST::Background*);
|
|
virtual void visit(const AST::BarewordLiteral*);
|
|
virtual void visit(const AST::BraceExpansion*);
|
|
virtual void visit(const AST::CastToCommand*);
|
|
virtual void visit(const AST::CastToList*);
|
|
virtual void visit(const AST::CloseFdRedirection*);
|
|
virtual void visit(const AST::CommandLiteral*);
|
|
virtual void visit(const AST::Comment*);
|
|
virtual void visit(const AST::ContinuationControl*);
|
|
virtual void visit(const AST::DynamicEvaluate*);
|
|
virtual void visit(const AST::DoubleQuotedString*);
|
|
virtual void visit(const AST::Fd2FdRedirection*);
|
|
virtual void visit(const AST::FunctionDeclaration*);
|
|
virtual void visit(const AST::ForLoop*);
|
|
virtual void visit(const AST::Glob*);
|
|
virtual void visit(const AST::Heredoc*);
|
|
virtual void visit(const AST::HistoryEvent*);
|
|
virtual void visit(const AST::Execute*);
|
|
virtual void visit(const AST::IfCond*);
|
|
virtual void visit(const AST::ImmediateExpression*);
|
|
virtual void visit(const AST::Join*);
|
|
virtual void visit(const AST::MatchExpr*);
|
|
virtual void visit(const AST::Or*);
|
|
virtual void visit(const AST::Pipe*);
|
|
virtual void visit(const AST::Range*);
|
|
virtual void visit(const AST::ReadRedirection*);
|
|
virtual void visit(const AST::ReadWriteRedirection*);
|
|
virtual void visit(const AST::Sequence*);
|
|
virtual void visit(const AST::Subshell*);
|
|
virtual void visit(const AST::Slice*);
|
|
virtual void visit(const AST::SimpleVariable*);
|
|
virtual void visit(const AST::SpecialVariable*);
|
|
virtual void visit(const AST::Juxtaposition*);
|
|
virtual void visit(const AST::StringLiteral*);
|
|
virtual void visit(const AST::StringPartCompose*);
|
|
virtual void visit(const AST::SyntaxError*);
|
|
virtual void visit(const AST::SyntheticNode*);
|
|
virtual void visit(const AST::Tilde*);
|
|
virtual void visit(const AST::VariableDeclarations*);
|
|
virtual void visit(const AST::WriteAppendRedirection*);
|
|
virtual void visit(const AST::WriteRedirection*);
|
|
|
|
protected:
|
|
virtual ~NodeVisitor() = default;
|
|
};
|
|
|
|
}
|