java.lang.Object
- org.antlr.v4.runtime.tree.AbstractParseTreeVisitor<T>
- - org.linuxforhealth.fhir.path.FHIRPathBaseVisitor<java.lang.Object>
  - - org.linuxforhealth.fhir.path.util.PrintingVisitor

All Implemented Interfaces:

org.antlr.v4.runtime.tree.ParseTreeVisitor<java.lang.Object>, FHIRPathVisitor<java.lang.Object>
```
public class PrintingVisitor
extends FHIRPathBaseVisitor<java.lang.Object>
```

Field Summary

Fields
Modifier and Type Field Description

(package private) int indentLevel

Constructor Summary

Constructors
Constructor Description

PrintingVisitor(java.io.OutputStream out)

PrintingVisitor(java.io.Writer writer)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.Object`	`visitAdditiveExpression(FHIRPathParser.AdditiveExpressionContext ctx)`	Visit a parse tree produced by the `additiveExpression` labeled alternative in `FHIRPathParser.expression()`.
`java.lang.Object`	`visitAndExpression(FHIRPathParser.AndExpressionContext ctx)`	Visit a parse tree produced by the `andExpression` labeled alternative in `FHIRPathParser.expression()`.
`java.lang.Object`	`visitBooleanLiteral(FHIRPathParser.BooleanLiteralContext ctx)`	Visit a parse tree produced by the `booleanLiteral` labeled alternative in `FHIRPathParser.literal()`.
`java.lang.Object`	`visitDateTimeLiteral(FHIRPathParser.DateTimeLiteralContext ctx)`	Visit a parse tree produced by the `dateTimeLiteral` labeled alternative in `FHIRPathParser.literal()`.
`java.lang.Object`	`visitDateTimePrecision(FHIRPathParser.DateTimePrecisionContext ctx)`	Visit a parse tree produced by `FHIRPathParser.dateTimePrecision()`.
`java.lang.Object`	`visitEqualityExpression(FHIRPathParser.EqualityExpressionContext ctx)`	Visit a parse tree produced by the `equalityExpression` labeled alternative in `FHIRPathParser.expression()`.
`java.lang.Object`	`visitExternalConstant(FHIRPathParser.ExternalConstantContext ctx)`	Visit a parse tree produced by `FHIRPathParser.externalConstant()`.
`java.lang.Object`	`visitExternalConstantTerm(FHIRPathParser.ExternalConstantTermContext ctx)`	Visit a parse tree produced by the `externalConstantTerm` labeled alternative in `FHIRPathParser.term()`.
`java.lang.Object`	`visitFunction(FHIRPathParser.FunctionContext ctx)`	Visit a parse tree produced by `FHIRPathParser.function()`.
`java.lang.Object`	`visitFunctionInvocation(FHIRPathParser.FunctionInvocationContext ctx)`	Visit a parse tree produced by the `functionInvocation` labeled alternative in `FHIRPathParser.invocation()`.
`java.lang.Object`	`visitIdentifier(FHIRPathParser.IdentifierContext ctx)`	Visit a parse tree produced by `FHIRPathParser.identifier()`.
`java.lang.Object`	`visitImpliesExpression(FHIRPathParser.ImpliesExpressionContext ctx)`	Visit a parse tree produced by the `impliesExpression` labeled alternative in `FHIRPathParser.expression()`.
`java.lang.Object`	`visitIndexerExpression(FHIRPathParser.IndexerExpressionContext ctx)`	Visit a parse tree produced by the `indexerExpression` labeled alternative in `FHIRPathParser.expression()`.
`java.lang.Object`	`visitIndexInvocation(FHIRPathParser.IndexInvocationContext ctx)`	Visit a parse tree produced by the `indexInvocation` labeled alternative in `FHIRPathParser.invocation()`.
`java.lang.Object`	`visitInequalityExpression(FHIRPathParser.InequalityExpressionContext ctx)`	Visit a parse tree produced by the `inequalityExpression` labeled alternative in `FHIRPathParser.expression()`.
`java.lang.Object`	`visitInvocationExpression(FHIRPathParser.InvocationExpressionContext ctx)`	Visit a parse tree produced by the `invocationExpression` labeled alternative in `FHIRPathParser.expression()`.
`java.lang.Object`	`visitInvocationTerm(FHIRPathParser.InvocationTermContext ctx)`	Visit a parse tree produced by the `invocationTerm` labeled alternative in `FHIRPathParser.term()`.
`java.lang.Object`	`visitLiteralTerm(FHIRPathParser.LiteralTermContext ctx)`	Visit a parse tree produced by the `literalTerm` labeled alternative in `FHIRPathParser.term()`.
`java.lang.Object`	`visitMemberInvocation(FHIRPathParser.MemberInvocationContext ctx)`	Visit a parse tree produced by the `memberInvocation` labeled alternative in `FHIRPathParser.invocation()`.
`java.lang.Object`	`visitMembershipExpression(FHIRPathParser.MembershipExpressionContext ctx)`	Visit a parse tree produced by the `membershipExpression` labeled alternative in `FHIRPathParser.expression()`.
`java.lang.Object`	`visitMultiplicativeExpression(FHIRPathParser.MultiplicativeExpressionContext ctx)`	Visit a parse tree produced by the `multiplicativeExpression` labeled alternative in `FHIRPathParser.expression()`.
`java.lang.Object`	`visitNullLiteral(FHIRPathParser.NullLiteralContext ctx)`	Visit a parse tree produced by the `nullLiteral` labeled alternative in `FHIRPathParser.literal()`.
`java.lang.Object`	`visitNumberLiteral(FHIRPathParser.NumberLiteralContext ctx)`	Visit a parse tree produced by the `numberLiteral` labeled alternative in `FHIRPathParser.literal()`.
`java.lang.Object`	`visitOrExpression(FHIRPathParser.OrExpressionContext ctx)`	Visit a parse tree produced by the `orExpression` labeled alternative in `FHIRPathParser.expression()`.
`java.lang.Object`	`visitParamList(FHIRPathParser.ParamListContext ctx)`	Visit a parse tree produced by `FHIRPathParser.paramList()`.
`java.lang.Object`	`visitParenthesizedTerm(FHIRPathParser.ParenthesizedTermContext ctx)`	Visit a parse tree produced by the `parenthesizedTerm` labeled alternative in `FHIRPathParser.term()`.
`java.lang.Object`	`visitPluralDateTimePrecision(FHIRPathParser.PluralDateTimePrecisionContext ctx)`	Visit a parse tree produced by `FHIRPathParser.pluralDateTimePrecision()`.
`java.lang.Object`	`visitPolarityExpression(FHIRPathParser.PolarityExpressionContext ctx)`	Visit a parse tree produced by the `polarityExpression` labeled alternative in `FHIRPathParser.expression()`.
`java.lang.Object`	`visitQualifiedIdentifier(FHIRPathParser.QualifiedIdentifierContext ctx)`	Visit a parse tree produced by `FHIRPathParser.qualifiedIdentifier()`.
`java.lang.Object`	`visitQuantity(FHIRPathParser.QuantityContext ctx)`	Visit a parse tree produced by `FHIRPathParser.quantity()`.
`java.lang.Object`	`visitQuantityLiteral(FHIRPathParser.QuantityLiteralContext ctx)`	Visit a parse tree produced by the `quantityLiteral` labeled alternative in `FHIRPathParser.literal()`.
`java.lang.Object`	`visitStringLiteral(FHIRPathParser.StringLiteralContext ctx)`	Visit a parse tree produced by the `stringLiteral` labeled alternative in `FHIRPathParser.literal()`.
`java.lang.Object`	`visitTermExpression(FHIRPathParser.TermExpressionContext ctx)`	Visit a parse tree produced by the `termExpression` labeled alternative in `FHIRPathParser.expression()`.
`java.lang.Object`	`visitThisInvocation(FHIRPathParser.ThisInvocationContext ctx)`	Visit a parse tree produced by the `thisInvocation` labeled alternative in `FHIRPathParser.invocation()`.
`java.lang.Object`	`visitTimeLiteral(FHIRPathParser.TimeLiteralContext ctx)`	Visit a parse tree produced by the `timeLiteral` labeled alternative in `FHIRPathParser.literal()`.
`java.lang.Object`	`visitTotalInvocation(FHIRPathParser.TotalInvocationContext ctx)`	Visit a parse tree produced by the `totalInvocation` labeled alternative in `FHIRPathParser.invocation()`.
`java.lang.Object`	`visitTypeExpression(FHIRPathParser.TypeExpressionContext ctx)`	Visit a parse tree produced by the `typeExpression` labeled alternative in `FHIRPathParser.expression()`.
`java.lang.Object`	`visitTypeSpecifier(FHIRPathParser.TypeSpecifierContext ctx)`	Visit a parse tree produced by `FHIRPathParser.typeSpecifier()`.
`java.lang.Object`	`visitUnionExpression(FHIRPathParser.UnionExpressionContext ctx)`	Visit a parse tree produced by the `unionExpression` labeled alternative in `FHIRPathParser.expression()`.
`java.lang.Object`	`visitUnit(FHIRPathParser.UnitContext ctx)`	Visit a parse tree produced by `FHIRPathParser.unit()`.

Methods inherited from class org.linuxforhealth.fhir.path.FHIRPathBaseVisitor
visitDateLiteral

Methods inherited from class org.antlr.v4.runtime.tree.AbstractParseTreeVisitor
aggregateResult, defaultResult, shouldVisitNextChild, visit, visitChildren, visitErrorNode, visitTerminal

Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.antlr.v4.runtime.tree.ParseTreeVisitor
visit, visitChildren, visitErrorNode, visitTerminal

- Field Detail
  - indentLevel
```
int indentLevel
```
- Constructor Detail
  - PrintingVisitor
```
public PrintingVisitor(java.io.OutputStream out)
```
  - PrintingVisitor
```
public PrintingVisitor(java.io.Writer writer)
```
- Method Detail
  - visitIndexerExpression
```
public java.lang.Object visitIndexerExpression(FHIRPathParser.IndexerExpressionContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the indexerExpression labeled alternative in FHIRPathParser.expression().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitIndexerExpression in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitIndexerExpression in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitPolarityExpression
```
public java.lang.Object visitPolarityExpression(FHIRPathParser.PolarityExpressionContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the polarityExpression labeled alternative in FHIRPathParser.expression().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitPolarityExpression in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitPolarityExpression in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitAdditiveExpression
```
public java.lang.Object visitAdditiveExpression(FHIRPathParser.AdditiveExpressionContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the additiveExpression labeled alternative in FHIRPathParser.expression().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitAdditiveExpression in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitAdditiveExpression in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitMultiplicativeExpression
```
public java.lang.Object visitMultiplicativeExpression(FHIRPathParser.MultiplicativeExpressionContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the multiplicativeExpression labeled alternative in FHIRPathParser.expression().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitMultiplicativeExpression in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitMultiplicativeExpression in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitUnionExpression
```
public java.lang.Object visitUnionExpression(FHIRPathParser.UnionExpressionContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the unionExpression labeled alternative in FHIRPathParser.expression().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitUnionExpression in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitUnionExpression in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitOrExpression
```
public java.lang.Object visitOrExpression(FHIRPathParser.OrExpressionContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the orExpression labeled alternative in FHIRPathParser.expression().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitOrExpression in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitOrExpression in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitAndExpression
```
public java.lang.Object visitAndExpression(FHIRPathParser.AndExpressionContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the andExpression labeled alternative in FHIRPathParser.expression().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitAndExpression in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitAndExpression in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitMembershipExpression
```
public java.lang.Object visitMembershipExpression(FHIRPathParser.MembershipExpressionContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the membershipExpression labeled alternative in FHIRPathParser.expression().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitMembershipExpression in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitMembershipExpression in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitInequalityExpression
```
public java.lang.Object visitInequalityExpression(FHIRPathParser.InequalityExpressionContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the inequalityExpression labeled alternative in FHIRPathParser.expression().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitInequalityExpression in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitInequalityExpression in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitInvocationExpression
```
public java.lang.Object visitInvocationExpression(FHIRPathParser.InvocationExpressionContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the invocationExpression labeled alternative in FHIRPathParser.expression().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitInvocationExpression in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitInvocationExpression in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitEqualityExpression
```
public java.lang.Object visitEqualityExpression(FHIRPathParser.EqualityExpressionContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the equalityExpression labeled alternative in FHIRPathParser.expression().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitEqualityExpression in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitEqualityExpression in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitImpliesExpression
```
public java.lang.Object visitImpliesExpression(FHIRPathParser.ImpliesExpressionContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the impliesExpression labeled alternative in FHIRPathParser.expression().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitImpliesExpression in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitImpliesExpression in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitTermExpression
```
public java.lang.Object visitTermExpression(FHIRPathParser.TermExpressionContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the termExpression labeled alternative in FHIRPathParser.expression().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitTermExpression in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitTermExpression in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitTypeExpression
```
public java.lang.Object visitTypeExpression(FHIRPathParser.TypeExpressionContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the typeExpression labeled alternative in FHIRPathParser.expression().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitTypeExpression in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitTypeExpression in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitInvocationTerm
```
public java.lang.Object visitInvocationTerm(FHIRPathParser.InvocationTermContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the invocationTerm labeled alternative in FHIRPathParser.term().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitInvocationTerm in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitInvocationTerm in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitLiteralTerm
```
public java.lang.Object visitLiteralTerm(FHIRPathParser.LiteralTermContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the literalTerm labeled alternative in FHIRPathParser.term().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitLiteralTerm in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitLiteralTerm in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitExternalConstantTerm
```
public java.lang.Object visitExternalConstantTerm(FHIRPathParser.ExternalConstantTermContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the externalConstantTerm labeled alternative in FHIRPathParser.term().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitExternalConstantTerm in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitExternalConstantTerm in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitParenthesizedTerm
```
public java.lang.Object visitParenthesizedTerm(FHIRPathParser.ParenthesizedTermContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the parenthesizedTerm labeled alternative in FHIRPathParser.term().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitParenthesizedTerm in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitParenthesizedTerm in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitNullLiteral
```
public java.lang.Object visitNullLiteral(FHIRPathParser.NullLiteralContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the nullLiteral labeled alternative in FHIRPathParser.literal().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitNullLiteral in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitNullLiteral in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitBooleanLiteral
```
public java.lang.Object visitBooleanLiteral(FHIRPathParser.BooleanLiteralContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the booleanLiteral labeled alternative in FHIRPathParser.literal().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitBooleanLiteral in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitBooleanLiteral in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitStringLiteral
```
public java.lang.Object visitStringLiteral(FHIRPathParser.StringLiteralContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the stringLiteral labeled alternative in FHIRPathParser.literal().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitStringLiteral in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitStringLiteral in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitNumberLiteral
```
public java.lang.Object visitNumberLiteral(FHIRPathParser.NumberLiteralContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the numberLiteral labeled alternative in FHIRPathParser.literal().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitNumberLiteral in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitNumberLiteral in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitDateTimeLiteral
```
public java.lang.Object visitDateTimeLiteral(FHIRPathParser.DateTimeLiteralContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the dateTimeLiteral labeled alternative in FHIRPathParser.literal().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitDateTimeLiteral in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitDateTimeLiteral in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitTimeLiteral
```
public java.lang.Object visitTimeLiteral(FHIRPathParser.TimeLiteralContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the timeLiteral labeled alternative in FHIRPathParser.literal().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitTimeLiteral in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitTimeLiteral in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitQuantityLiteral
```
public java.lang.Object visitQuantityLiteral(FHIRPathParser.QuantityLiteralContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the quantityLiteral labeled alternative in FHIRPathParser.literal().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitQuantityLiteral in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitQuantityLiteral in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitExternalConstant
```
public java.lang.Object visitExternalConstant(FHIRPathParser.ExternalConstantContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by FHIRPathParser.externalConstant().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitExternalConstant in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitExternalConstant in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitMemberInvocation
```
public java.lang.Object visitMemberInvocation(FHIRPathParser.MemberInvocationContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the memberInvocation labeled alternative in FHIRPathParser.invocation().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitMemberInvocation in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitMemberInvocation in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitFunctionInvocation
```
public java.lang.Object visitFunctionInvocation(FHIRPathParser.FunctionInvocationContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the functionInvocation labeled alternative in FHIRPathParser.invocation().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitFunctionInvocation in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitFunctionInvocation in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitThisInvocation
```
public java.lang.Object visitThisInvocation(FHIRPathParser.ThisInvocationContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the thisInvocation labeled alternative in FHIRPathParser.invocation().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitThisInvocation in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitThisInvocation in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitIndexInvocation
```
public java.lang.Object visitIndexInvocation(FHIRPathParser.IndexInvocationContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the indexInvocation labeled alternative in FHIRPathParser.invocation().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitIndexInvocation in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitIndexInvocation in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitTotalInvocation
```
public java.lang.Object visitTotalInvocation(FHIRPathParser.TotalInvocationContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by the totalInvocation labeled alternative in FHIRPathParser.invocation().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitTotalInvocation in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitTotalInvocation in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitFunction
```
public java.lang.Object visitFunction(FHIRPathParser.FunctionContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by FHIRPathParser.function().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitFunction in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitFunction in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitParamList
```
public java.lang.Object visitParamList(FHIRPathParser.ParamListContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by FHIRPathParser.paramList().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitParamList in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitParamList in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitQuantity
```
public java.lang.Object visitQuantity(FHIRPathParser.QuantityContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by FHIRPathParser.quantity().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitQuantity in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitQuantity in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitUnit
```
public java.lang.Object visitUnit(FHIRPathParser.UnitContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by FHIRPathParser.unit().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitUnit in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitUnit in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitDateTimePrecision
```
public java.lang.Object visitDateTimePrecision(FHIRPathParser.DateTimePrecisionContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by FHIRPathParser.dateTimePrecision().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitDateTimePrecision in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitDateTimePrecision in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitPluralDateTimePrecision
```
public java.lang.Object visitPluralDateTimePrecision(FHIRPathParser.PluralDateTimePrecisionContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by FHIRPathParser.pluralDateTimePrecision().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitPluralDateTimePrecision in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitPluralDateTimePrecision in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitTypeSpecifier
```
public java.lang.Object visitTypeSpecifier(FHIRPathParser.TypeSpecifierContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by FHIRPathParser.typeSpecifier().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitTypeSpecifier in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitTypeSpecifier in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitQualifiedIdentifier
```
public java.lang.Object visitQualifiedIdentifier(FHIRPathParser.QualifiedIdentifierContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by FHIRPathParser.qualifiedIdentifier().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitQualifiedIdentifier in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitQualifiedIdentifier in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitIdentifier
```
public java.lang.Object visitIdentifier(FHIRPathParser.IdentifierContext ctx)
```
    Description copied from class: FHIRPathBaseVisitor
    
    Visit a parse tree produced by FHIRPathParser.identifier().
    The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.
    
    Specified by:
    
    visitIdentifier in interface FHIRPathVisitor<java.lang.Object>
    
    Overrides:
    
    visitIdentifier in class FHIRPathBaseVisitor<java.lang.Object>
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result

Constructor	Description
`PrintingVisitor(java.io.OutputStream out)`
`PrintingVisitor(java.io.Writer writer)`

Class PrintingVisitor

Field Summary

Constructor Summary

Method Summary

Methods inherited from class org.linuxforhealth.fhir.path.FHIRPathBaseVisitor

Methods inherited from class org.antlr.v4.runtime.tree.AbstractParseTreeVisitor

Methods inherited from class java.lang.Object

Methods inherited from interface org.antlr.v4.runtime.tree.ParseTreeVisitor

Field Detail

indentLevel

Constructor Detail

PrintingVisitor

PrintingVisitor

Method Detail

visitIndexerExpression

visitPolarityExpression

visitAdditiveExpression

visitMultiplicativeExpression

visitUnionExpression

visitOrExpression

visitAndExpression

visitMembershipExpression

visitInequalityExpression

visitInvocationExpression

visitEqualityExpression

visitImpliesExpression

visitTermExpression

visitTypeExpression

visitInvocationTerm

visitLiteralTerm

visitExternalConstantTerm

visitParenthesizedTerm

visitNullLiteral

visitBooleanLiteral

visitStringLiteral

visitNumberLiteral

visitDateTimeLiteral

visitTimeLiteral

visitQuantityLiteral

visitExternalConstant

visitMemberInvocation

visitFunctionInvocation

visitThisInvocation

visitIndexInvocation

visitTotalInvocation

visitFunction

visitParamList

visitQuantity

visitUnit

visitDateTimePrecision

visitPluralDateTimePrecision

visitTypeSpecifier

visitQualifiedIdentifier

visitIdentifier