Statement (QDL root module 1.6.2.3 API)

All Superinterfaces:

Serializable

All Known Subinterfaces:

ExpressionInterface, ExpressionNode

All Known Implementing Classes:

AllIndices, AltIfExpressionNode, ANode2, AssertStatement, AxisExpression, BlockStatement, ClosedSliceNode, ComparisonDyad, ConditionalStatement, ConstantNode, Dyad, DyadicFunctionReferenceNode, ESN2, ExpressionImpl, ExpressionStemNode, FunctionDefinitionStatement, FunctionReferenceNode, LambdaDefinitionNode, LocalBlockStatement, ModuleExpression, ModuleStatement, Monad, Nilad, OpenSliceNode, ParenthesizedExpression, ParseExpressionBlockNode, ParseStatementBlock, Polyad, QDLNull, QDLSetNode, SelectExpressionNode, StemEntryNode, StemExtractionNode, StemListNode, StemVariableNode, SwitchStatement, TryCatch, UserFunction, VariableNode, WhileLoop
```
public interface Statement
extends Serializable
```
Top-level interface for all statements and expressions. Note that in QDL a statement has no result and an expression does. However, due to historical reasons, everything in the implementation is a "statement". So in reality, statements (such as if[]then[]) implement this but expressions implement ExpressionInterface. This mostly has parser-related generic stuff in it. It, like the source code, token position in parsing etc.
Created by Jeff Gaynor
on 1/14/20 at 9:11 AM

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`QDLValue`	`evaluate(State state)`
`List<String>`	`getSourceCode()`
`TokenPosition`	`getTokenPosition()`
`boolean`	`hasTokenPosition()`
`void`	`setSourceCode(List<String> sourceCode)`
`void`	`setTokenPosition(TokenPosition tokenPosition)`	Set the location of this token from the parser.

Method Detail

evaluate
```
QDLValue evaluate(State state)
```

getSourceCode
```
List<String> getSourceCode()
```

setSourceCode

void setSourceCode(List<String> sourceCode)

setTokenPosition
```
void setTokenPosition(TokenPosition tokenPosition)
```
Set the location of this token from the parser. This is used for error notifications later.

Parameters:

tokenPosition -

getTokenPosition
```
TokenPosition getTokenPosition()
```

hasTokenPosition
```
boolean hasTokenPosition()
```