ParseTreeWalker

Undocumented in source.

class ParseTreeWalker {

static immutable

ParseTreeWalker DEFAULT;

void walk(ParseTreeListener listener, ParseTree t);

void enterRule(ParseTreeListener listener, RuleNode r);

void exitRule(ParseTreeListener listener, RuleNode r);

}

Members

Functions

enterRule void enterRule(ParseTreeListener listener, RuleNode r): Enters a grammar rule by first triggering the generic event {@link ParseTreeListener#enterEveryRule} then by triggering the event specific to the given parse tree node @param listener The listener responding to the trigger events @param r The grammar rule containing the rule context
exitRule void exitRule(ParseTreeListener listener, RuleNode r): Exits a grammar rule by first triggering the event specific to the given parse tree node then by triggering the generic event {@link ParseTreeListener#exitEveryRule} @param listener The listener responding to the trigger events @param r The grammar rule containing the rule context
walk void walk(ParseTreeListener listener, ParseTree t): Performs a walk on the given parse tree starting at the root and going down recursively with depth-first search. On each node, {@link ParseTreeWalker#enterRule} is called before recursively walking down into child nodes, then {@link ParseTreeWalker#exitRule} is called after the recursive call to wind up. @param listener The listener used by the walker to process grammar rules @param t The parse tree to be walked on

Static variables

DEFAULT ParseTreeWalker DEFAULT;: Undocumented in source.

Meta

Source

See Implementation