/*
* whenCondition
* : expression
* : ("in" | "!in") expression
* : ("is" | "!is") isRHS
* ;
*/
private void parseWhenCondition() {
PsiBuilder.Marker condition = mark();
myBuilder.disableNewlines();
if (at(IN_KEYWORD) || at(NOT_IN)) {
PsiBuilder.Marker mark = mark();
advance(); // IN_KEYWORD or NOT_IN
mark.done(OPERATION_REFERENCE);
if (atSet(WHEN_CONDITION_RECOVERY_SET_WITH_ARROW)) {
error("Expecting an element");
} else {
parseExpression();
}
condition.done(WHEN_CONDITION_IN_RANGE);
} else if (at(IS_KEYWORD) || at(NOT_IS)) {
advance(); // IS_KEYWORD or NOT_IS
if (atSet(WHEN_CONDITION_RECOVERY_SET_WITH_ARROW)) {
error("Expecting a type");
} else {
myJetParsing.parseTypeRef();
}
condition.done(WHEN_CONDITION_IS_PATTERN);
} else {
if (atSet(WHEN_CONDITION_RECOVERY_SET_WITH_ARROW)) {
error("Expecting an expression, is-condition or in-condition");
} else {
parseExpression();
}
condition.done(WHEN_CONDITION_EXPRESSION);
}
myBuilder.restoreNewlinesState();
}
/*
* "this" ("<" type ">")? label?
*/
private void parseSuperExpression() {
assert _at(SUPER_KEYWORD);
PsiBuilder.Marker mark = mark();
PsiBuilder.Marker superReference = mark();
advance(); // SUPER_KEYWORD
superReference.done(REFERENCE_EXPRESSION);
if (at(LT)) {
// This may be "super < foo" or "super<foo>", thus the backtracking
PsiBuilder.Marker supertype = mark();
myBuilder.disableNewlines();
advance(); // LT
myJetParsing.parseTypeRef();
if (at(GT)) {
advance(); // GT
supertype.drop();
} else {
supertype.rollbackTo();
}
myBuilder.restoreNewlinesState();
}
parseLabelOnTheSameLine();
mark.done(SUPER_EXPRESSION);
}
/*
* SimpleName{,}
*/
private void parseFunctionLiteralShorthandParameterList() {
PsiBuilder.Marker parameterList = mark();
while (!eof()) {
PsiBuilder.Marker parameter = mark();
// int parameterNamePos = matchTokenStreamPredicate(new LastBefore(new
// At(IDENTIFIER), new AtOffset(doubleArrowPos)));
// createTruncatedBuilder(parameterNamePos).parseModifierList(MODIFIER_LIST,
// false);
expect(IDENTIFIER, "Expecting parameter name", TokenSet.create(ARROW));
parameter.done(VALUE_PARAMETER);
if (at(COLON)) {
PsiBuilder.Marker errorMarker = mark();
advance(); // COLON
myJetParsing.parseTypeRef();
errorMarker.error(
"To specify a type of a parameter or a return type, use the full notation: {(parameter : Type) : ReturnType -> ...}");
} else if (at(ARROW)) {
break;
} else if (at(COMMA)) {
advance(); // COMMA
} else {
error("Expecting '->' or ','");
break;
}
}
parameterList.done(VALUE_PARAMETER_LIST);
}
/*
* (":" type)?
*/
private void parseOptionalFunctionLiteralType() {
if (at(COLON)) {
advance(); // COLON
if (at(ARROW)) {
error("Expecting a type");
} else {
myJetParsing.parseTypeRef();
}
}
}
/**
* "(" (modifiers SimpleName (":" type)?){","} ")"
*
* @return true if at least one comma was found
*/
private boolean parseFunctionLiteralParameterList() {
PsiBuilder.Marker list = mark();
expect(LPAR, "Expecting a parameter list in parentheses (...)", TokenSet.create(ARROW, COLON));
boolean hasComma = false;
myBuilder.disableNewlines();
if (!at(RPAR)) {
while (true) {
if (at(COMMA)) errorAndAdvance("Expecting a parameter declaration");
PsiBuilder.Marker parameter = mark();
int parameterNamePos =
matchTokenStreamPredicate(
new LastBefore(
new At(IDENTIFIER), new AtSet(COMMA, RPAR, COLON, ARROW, RBRACE, LBRACE)));
createTruncatedBuilder(parameterNamePos)
.parseModifierList(MODIFIER_LIST, REGULAR_ANNOTATIONS_ONLY_WITH_BRACKETS);
expect(IDENTIFIER, "Expecting parameter declaration");
if (at(COLON)) {
advance(); // COLON
myJetParsing.parseTypeRef();
}
parameter.done(VALUE_PARAMETER);
if (!at(COMMA)) break;
advance(); // COMMA
hasComma = true;
if (at(RPAR)) {
error("Expecting a parameter declaration");
break;
}
}
}
myBuilder.restoreNewlinesState();
expect(RPAR, "Expecting ')'", TokenSet.create(ARROW, COLON));
list.done(VALUE_PARAMETER_LIST);
return hasComma;
}
/*
* for
* : "for" "(" annotations ("val" | "var")? (multipleVariableDeclarations | variableDeclarationEntry) "in" expression ")" expression
* ;
*
* TODO: empty loop body (at the end of the block)?
*/
private void parseFor() {
assert _at(FOR_KEYWORD);
PsiBuilder.Marker loop = mark();
advance(); // FOR_KEYWORD
if (expect(LPAR, "Expecting '(' to open a loop range", EXPRESSION_FIRST)) {
myBuilder.disableNewlines();
if (!at(RPAR)) {
PsiBuilder.Marker parameter = mark();
if (at(VAL_KEYWORD) || at(VAR_KEYWORD)) advance(); // VAL_KEYWORD or VAR_KEYWORD
if (at(LPAR)) {
myJetParsing.parseMultiDeclarationName(TokenSet.create(IN_KEYWORD, LBRACE));
parameter.done(MULTI_VARIABLE_DECLARATION);
} else {
expect(IDENTIFIER, "Expecting a variable name", TokenSet.create(COLON, IN_KEYWORD));
if (at(COLON)) {
advance(); // COLON
myJetParsing.parseTypeRef(TokenSet.create(IN_KEYWORD));
}
parameter.done(VALUE_PARAMETER);
}
if (expect(IN_KEYWORD, "Expecting 'in'", TokenSet.create(LPAR, LBRACE, RPAR))) {
PsiBuilder.Marker range = mark();
parseExpression();
range.done(LOOP_RANGE);
}
} else {
error("Expecting a variable name");
}
expectNoAdvance(RPAR, "Expecting ')'");
myBuilder.restoreNewlinesState();
}
parseControlStructureBody();
loop.done(FOR);
}