Examples of AST

• antlr.collections.AST
  Minimal AST node interface used by ANTLR AST generation and tree-walker.
• com.foundationdb.sql.optimizer.plan.AST
  A parsed (and type-bound, normalized, etc.) SQL query.
• com.google.gwt.dev.jjs.UnifiedAst.AST
• com.orange.wink.ast.Ast
  @author Sylvain Lalande
• net.sf.jcontracts.antlr.collections.AST
• org.aspectj.org.eclipse.jdt.core.dom.AST
  import declaration at end TextEdit edits = cu.rewrite(document, null); UndoEdit undo = edits.apply(document); See also {@link org.aspectj.org.eclipse.jdt.core.dom.rewrite.ASTRewrite} foran alternative way to describe and serialize changes to a read-only AST.

  Clients may create instances of this class using {@link #newAST(int)}, but this class is not intended to be subclassed.

  @see ASTParser @see ASTNode @since 2.0
• org.eclipse.jdt.core.dom.AST
  import declaration at end TextEdit edits = cu.rewrite(document, null); UndoEdit undo = edits.apply(document); See also {@link org.eclipse.jdt.core.dom.rewrite.ASTRewrite} foran alternative way to describe and serialize changes to a read-only AST.

  Clients may create instances of this class using {@link #newAST(int)}, but this class is not intended to be subclassed.

  @see ASTParser @see ASTNode @since 2.0 @noinstantiate This class is not intended to be instantiated by clients.
• org.eclipse.php.internal.core.ast.nodes.AST
  Umbrella owner and abstract syntax tree node factory. An AST instance serves as the common owner of any number of AST nodes, and as the factory for creating new AST nodes owned by that instance.

  Abstract syntax trees may be hand constructed by clients, using the newTYPE factory methods to create new nodes, and the various setCHILD methods (see {@link org.eclipse.php.internal.core.ast.nodes.ASTNode} and its subclasses)to connect them together.

  Each AST node belongs to a unique AST instance, called the owning AST. The children of an AST node always have the same owner as their parent node. If a node from one AST is to be added to a different AST, the subtree must be cloned first to ensures that the added nodes have the correct owning AST.

  There can be any number of AST nodes owned by a single AST instance that are unparented. Each of these nodes is the root of a separate little tree of nodes. The method ASTNode.getProgramRoot() navigates from any node to the root of the tree that it is contained in. Ordinarily, an AST instance has one main tree (rooted at a Program), with newly-created nodes appearing as additional roots until they are parented somewhere under the main tree. One can navigate from any node to its AST instance, but not conversely.

  The class {@link ASTParser} parses a string containing a PHP source code andreturns an abstract syntax tree for it. The resulting nodes carry source ranges relating the node back to the original source characters.

  Programs created by ASTParser from a source document can be serialized after arbitrary modifications with minimal loss of original formatting. Here is an example:

   Document doc = new Document(""); ASTParser parser = ASTParser.newParser(AST.PHP5); parser.setSource(doc.get().toCharArray()); Program program = parser.createAST(null); program.recordModifications(); AST ast = program.getAST(); EchoStatement echo = ast.newEchoStatement(); echo.setExpression(ast.newScalar("hello world"); program.statements().add(echo); TextEdit edits = program.rewrite(document, null); UndoEdit undo = edits.apply(document); 

  See also {@link ASTRewrite} for an alternative way to describe and serializechanges to a read-only AST.

  Clients may create instances of this class using {@link #newAST(int)}, but this class is not intended to be subclassed.

  @see ASTParser @see ASTNode @since 2.0
• org.jostraca.comp.antlr.collections.AST
  Minimal AST node interface used by ANTLR AST generation and tree-walker.
• org.locationtech.udig.catalog.util.AST
  Use the visitor pattern to traverse the AST @author David Zwiers, Refractions Research @since 0.6
• persistence.antlr.collections.AST
  Minimal AST node interface used by ANTLR AST generation and tree-walker.
• xtc.type.AST
  Common type operations for Rats! ASTs.

  This class supports two views on a grammar's generic AST. The first view is dynamically typed, with all generic AST nodes represented by the canonical node type. The second view is statically typed, with all generic AST nodes represented by tuples organized into variants. Either way, this class supports the following types:

  • The void type represented by {@link VoidT}.
  • The unit type represented by {@link UnitT}.
  • Characters represented by an {@link InternalT} with name"char".
  • Strings represented by an {@link InternalT} with name"string".
  • Tokens represented by an {@link InternalT} with name"token".
  • Dynamically typed nodes represented by an {@link InternalT}with name "node".
  • Statically typed nodes represented by a {@link VariantT} with{@link TupleT} elements.
  • Parse tree annotations represented by an {@link InternalT}with name "formatting".
  • Lists represented by an {@link InternalT} with name"list".
  • Actions represented by an {@link InternalT} with name"action".

  All node types have the {@link Constants#ATT_NODE} attribute; thedynamically typed node representing generic productions also has the {@link Constants#ATT_GENERIC} attribute.

  In addition to generic ASTs, this class also supports user-defined types, which must be represented by types that are not listed above.

  Concrete subclasses specify the mapping between strings and types. For mapping internal representations back to strings, the void type has name "void", the unit type has name "unit", and the wildcard has name "?". @author Robert Grimm @version $Revision: 1.39 $

Examples of xtc.type.AST