Package iota

Class ILogicalNotOp


class ILogicalNotOp extends IUnaryExpression
The AST node for a logical NOT (!) expression.
  • Constructor Details

    • ILogicalNotOp

      public ILogicalNotOp(int line, IExpression arg)
      Constructs an AST for a logical NOT expression.
      Parameters:
      line - line in which the logical NOT expression occurs in the source file.
      arg - the operand.
  • Method Details

    • analyze

      public IExpression analyze(Context context)
      Analyzes and returns an IExpression.
      Specified by:
      analyze in class IExpression
      Parameters:
      context - context in which names are resolved.
      Returns:
      the analyzed (and possibly rewritten) AST subtree.
    • codegen

      public void codegen(CLEmitter output)
      Performs code generation for this AST.
      Specified by:
      codegen in class IAST
      Parameters:
      output - the code emitter.
    • codegen

      public void codegen(CLEmitter output, String targetLabel, boolean onTrue)
      Performs short-circuit code generation for a boolean expression, given the code emitter, a target label, and whether we branch to that label on true or on false.
      Overrides:
      codegen in class IExpression
      Parameters:
      output - the code emitter.
      targetLabel - the label to which we should branch.
      onTrue - do we branch on true?