/*
* Parses Groovy-style 'in' clause
*/
private static boolean forInClauseParse(PsiBuilder builder, GroovyParser parser) {
PsiBuilder.Marker marker = builder.mark();
PsiBuilder.Marker declMarker = builder.mark();
if (ParserUtils.lookAhead(builder, mIDENT, kIN)) {
ParserUtils.eatElement(builder, PARAMETER);
declMarker.drop();
ParserUtils.getToken(builder, kIN);
if (!ShiftExpression.parse(builder, parser)) {
builder.error(GroovyBundle.message("expression.expected"));
}
marker.done(FOR_IN_CLAUSE);
return true;
}
if (DeclarationStart.parse(builder, parser)) {
if (Modifiers.parse(builder, parser)) {
TypeSpec.parse(builder);
return singleDeclNoInitParse(builder, marker, declMarker, parser);
}
}
if (TypeSpec.parse(builder)) {
return singleDeclNoInitParse(builder, marker, declMarker, parser);
}
declMarker.drop();
marker.drop();
return false;
}
private static boolean singleDeclNoInitParse(
PsiBuilder builder,
PsiBuilder.Marker marker,
PsiBuilder.Marker declMarker,
GroovyParser parser) {
if (ParserUtils.getToken(builder, mIDENT)) {
if (kIN.equals(builder.getTokenType()) || mCOLON.equals(builder.getTokenType())) {
declMarker.done(PARAMETER);
builder.advanceLexer();
if (!ShiftExpression.parse(builder, parser)) {
builder.error(GroovyBundle.message("expression.expected"));
}
marker.done(FOR_IN_CLAUSE);
return true;
} else {
marker.rollbackTo();
return false;
}
} else {
declMarker.drop();
marker.rollbackTo();
return false;
}
}