Java Doc for Expression.java in  » Scripting » Nice » gnu » expr » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Scripting » Nice » gnu.expr   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    gnu.expr.Expression All known Subclasses:   gnu.expr.BeginExp,  gnu.expr.ReferenceExp,  gnu.expr.SynchronizedExp,  gnu.expr.Package,  gnu.expr.SetExp,  gnu.expr.BlockExp,  gnu.expr.QuoteExp,  gnu.expr.ExitExp,  gnu.expr.IncrementExp,  gnu.expr.LoopExp,  gnu.expr.ErrorExp,  gnu.expr.IfExp,  gnu.expr.CopyArgument,  gnu.expr.CheckContract,  gnu.expr.TryExp,  gnu.expr.ScopeExp,  gnu.expr.ApplyExp, Expression abstract public class Expression implements Printable(Code) Abstract class for syntactic forms that evaluate to a value. Scheme S-expressions get re-written to these before evaluation. author:    Per Bothner Field Summary final protected static  int NEXT_AVAIL_FLAG       String filename      protected  int flags      final public static  Expression[] noExpressions       int position      Method Summary abstract public  void compile(Compilation comp, Target target)      final public  void compile(Compilation comp, Type type)      final public  void compileNotePosition(Compilation comp, Target target)      Compile, but take note of line number. final public  void compileWithPosition(Compilation comp, Target target)      Same as compile, but emit line number beforehard. public  Object eval(Environment env)      public  void eval(Environment env, CallContext ctx)      public  Branchable getBranchable()      final public  int getColumn()      final public  String getFile()      public  boolean getFlag(int flag)      public  int getFlags()      final public  int getLine()      Get the line number of (the start of) this Expression. The "first" line is line 1. public  Type getType()      Return the Type used to represent the values of this Expression. public  boolean hasLocation()      public static  Expression makeWhile(Object cond, Object body, Parser parser)      Helper method to create a `while' statement. final public  void print(java.io.PrintWriter ps)      abstract public  void print(OutPort ps)      public  void printLineColumn(OutPort out)      Print line and column number if specified. final public  void setFile(String filename)      public  void setFlag(boolean setting, int flag)      public  void setFlag(int flag)      final public  Expression setLine(Expression old)      final public  void setLine(int lineno, int colno)      final public  void setLine(int lineno)      protected  Expression walk(ExpWalker walker)      protected  void walkChildren(ExpWalker walker)      Field Detail NEXT_AVAIL_FLAG final protected static int NEXT_AVAIL_FLAG(Code) filename String filename(Code) flags protected int flags(Code) noExpressions final public static Expression[] noExpressions(Code) position int position(Code) Method Detail compile abstract public void compile(Compilation comp, Target target)(Code) compile final public void compile(Compilation comp, Type type)(Code) compileNotePosition final public void compileNotePosition(Compilation comp, Target target)(Code) Compile, but take note of line number. compileWithPosition final public void compileWithPosition(Compilation comp, Target target)(Code) Same as compile, but emit line number beforehard. eval public Object eval(Environment env) throws Throwable(Code) eval public void eval(Environment env, CallContext ctx) throws Throwable(Code) getBranchable public Branchable getBranchable()(Code) getColumn final public int getColumn()(Code) getFile final public String getFile()(Code) getFlag public boolean getFlag(int flag)(Code) getFlags public int getFlags()(Code) getLine final public int getLine()(Code) Get the line number of (the start of) this Expression. The "first" line is line 1. getType public Type getType()(Code) Return the Type used to represent the values of this Expression. hasLocation public boolean hasLocation()(Code) makeWhile public static Expression makeWhile(Object cond, Object body, Parser parser)(Code) Helper method to create a `while' statement. print final public void print(java.io.PrintWriter ps)(Code) print abstract public void print(OutPort ps)(Code) printLineColumn public void printLineColumn(OutPort out)(Code) Print line and column number if specified. This is a helper routineintended for use by print(OutPort). setFile final public void setFile(String filename)(Code) setFlag public void setFlag(boolean setting, int flag)(Code) setFlag public void setFlag(int flag)(Code) setLine final public Expression setLine(Expression old)(Code) setLine final public void setLine(int lineno, int colno)(Code) setLine final public void setLine(int lineno)(Code) walk protected Expression walk(ExpWalker walker)(Code) walkChildren protected void walkChildren(ExpWalker walker)(Code) Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)