kmillikin@google.com
e9eec70cad
The print-ast output is useful for debugging front end issues. It is a mix of fully-parenthesized prefix notation (i.e., Lisp S-expressions) with some infix. It is not valid S-expressions for various other reasons. Most obviously, it uses ' (single quote) instead of " (double quote) to delimit strings. This change makes the print-ast output a valid Scheme S-expression. It can be pretty printed by copying it, quoting it (by preceding it with a single quote), and evaluating it at the REPL of a Scheme implementation. Also, the AST node pretty names are changed to predictably match the class name. It doesn't seem helpful to have them be arbitrary. BUG= R=regis@google.com Review URL: https://codereview.chromium.org//23923005 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@27282 260f80e4-7a28-3924-810f-c04153c831b5
44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#ifndef VM_AST_PRINTER_H_
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#define VM_AST_PRINTER_H_
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#include "vm/ast.h"
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#include "vm/growable_array.h"
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namespace dart {
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// Forward declaration.
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class ParsedFunction;
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class AstPrinter : public AstNodeVisitor {
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public:
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static void PrintNode(AstNode* node);
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static void PrintFunctionScope(const ParsedFunction& parsed_function);
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static void PrintFunctionNodes(const ParsedFunction& parsed_function);
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static void PrintLocalScope(const LocalScope* scope, int variable_index);
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#define DECLARE_VISITOR_FUNCTION(BaseName) \
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virtual void Visit##BaseName##Node(BaseName##Node* node);
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FOR_EACH_NODE(DECLARE_VISITOR_FUNCTION)
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#undef DECLARE_VISITOR_FUNCTION
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private:
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AstPrinter();
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~AstPrinter();
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void VisitGenericAstNode(AstNode* node);
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void VisitGenericLocalNode(AstNode* node, const LocalVariable& local);
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void VisitGenericFieldNode(AstNode* node, const Field& field);
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DISALLOW_COPY_AND_ASSIGN(AstPrinter);
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};
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} // namespace dart
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#endif // VM_AST_PRINTER_H_
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