Class SourceText

java.lang.Object

org.ek9lang.compiler.support.SourceText

All Implemented Interfaces:

Function<org.antlr.v4.runtime.ParserRuleContext, String>

public final class SourceText
extends Object
implements Function<org.antlr.v4.runtime.ParserRuleContext, String>

THE source of a parse rule as the developer wrote it: the characters it spans in the char stream, spaces kept. Use it wherever source text is shown to a person or embedded in a message - ctx.getText() joins the tokens with nothing between them, so name? and age? becomes name?andage?. Falls back to getText() only when the char stream is unavailable.

Hold one and apply it. On one line it is SourceTextOnOneLine; in a run-time message it is SourceTextForMessage.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	MESSAGE_LENGTH	The longest source text embedded in a run-time message (an assert or require failure).

Constructor Summary

Constructors

Constructor	Description
SourceText()

Method Summary

Modifier and Type	Method	Description
String	apply(org.antlr.v4.runtime.ParserRuleContext ctx)	The characters ctx spans, as written.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface Function

andThen, compose

Field Details

MESSAGE_LENGTH

public static final int MESSAGE_LENGTH

The longest source text embedded in a run-time message (an assert or require failure).

See Also:

• Constant Field Values

Constructor Details

SourceText

public SourceText()

Method Details

apply

public String apply(org.antlr.v4.runtime.ParserRuleContext ctx)

The characters ctx spans, as written.

Specified by:

apply in interface Function<org.antlr.v4.runtime.ParserRuleContext, String>