protected void processUses(FunctionStmtToken result, ListIterator<Token> iterator) {
Token next = nextToken(iterator);
if (next instanceof NamespaceUseStmtToken) {
next = nextToken(iterator);
if (!isOpenedBrace(next, BraceExprToken.Kind.SIMPLE)) unexpectedToken(next, "(");
List<ArgumentStmtToken> arguments = new ArrayList<ArgumentStmtToken>();
while (iterator.hasNext()) {
ArgumentStmtToken argument = processArgument(iterator);
if (argument == null) break;
if (argument.getValue() != null) unexpectedToken(argument.getValue().getSingle());
arguments.add(argument);
FunctionStmtToken parent = analyzer.getFunction(true);
if (parent != null) {
parent.variable(argument.getName()).setUsed(true);
if (argument.isReference()) {
parent.variable(argument.getName()).setPassed(true).setUnstable(true);
}
parent = analyzer.peekClosure();
if (parent != null) {
parent.variable(argument.getName()).setUnstable(true);
}
}
}
result.setUses(arguments);
} else {
result.setUses(new ArrayList<ArgumentStmtToken>());
iterator.previous();
}
}
@SuppressWarnings("unchecked")
protected ArgumentStmtToken processArgument(ListIterator<Token> iterator) {
boolean isReference = false;
boolean isVariadic = false;
VariableExprToken variable = null;
ExprStmtToken value = null;
Token next = nextToken(iterator);
if (next instanceof CommaToken || isClosedBrace(next, BraceExprToken.Kind.SIMPLE)) return null;
NameToken hintTypeClass = null;
HintType hintType = null;
if (next instanceof NameToken) {
String word = ((NameToken) next).getName().toLowerCase();
if (scalarTypeHints.contains(word)) hintType = HintType.of(word);
else {
hintType = jphp_scalarTypeHints.contains(word) ? null : HintType.of(word);
if (hintType == null) hintTypeClass = analyzer.getRealName((NameToken) next);
}
next = nextToken(iterator);
}
if (next instanceof AmpersandRefToken) {
isReference = true;
next = nextToken(iterator);
}
if (next instanceof ArgumentUnpackExprToken) {
isVariadic = true;
next = nextToken(iterator);
}
if (next instanceof VariableExprToken) {
variable = (VariableExprToken) next;
} else unexpectedToken(next);
next = nextToken(iterator);
if (next instanceof AssignExprToken) {
if (isVariadic) {
unexpectedToken(next);
}
value =
analyzer
.generator(SimpleExprGenerator.class)
.getToken(nextToken(iterator), iterator, true, BraceExprToken.Kind.SIMPLE);
} else {
if (next instanceof CommaToken || isClosedBrace(next, BraceExprToken.Kind.SIMPLE)) {
if (next instanceof BraceExprToken) {
iterator.previous();
} else {
if (isVariadic) {
unexpectedToken(next);
}
}
} else unexpectedToken(next);
}
ArgumentStmtToken argument = new ArgumentStmtToken(variable.getMeta());
argument.setName(variable);
argument.setHintType(hintType);
argument.setHintTypeClass(hintTypeClass);
argument.setReference(isReference);
argument.setVariadic(isVariadic);
argument.setValue(value);
if (argument.isReference() && argument.getValue() != null)
analyzer.getFunction().variable(argument.getName()).setUsed(true);
return argument;
}
@SuppressWarnings("unchecked")
public FunctionStmtToken getToken(
Token current, ListIterator<Token> iterator, boolean closureAllowed) {
if (current instanceof FunctionStmtToken) {
FunctionStmtToken result = (FunctionStmtToken) current;
result.setStatic(analyzer.getFunction() == null);
Class<? extends Token>[] excludes = new Class[] {EchoStmtToken.class, ImportExprToken.class};
if (analyzer.getClazz() != null) {
excludes = new Class[0];
}
Token next = nextTokenSensitive(iterator, excludes);
if (next instanceof AmpersandRefToken) {
result.setReturnReference(true);
next = nextTokenSensitive(iterator, excludes);
}
if (next instanceof NameToken) {
/*if (analyzer.getFunction() != null)
unexpectedToken(current);*/
analyzer.addScope(true);
FunctionStmtToken oldFunction = analyzer.getFunction();
analyzer.setFunction(result);
BraceExprToken brace = nextAndExpected(iterator, BraceExprToken.class);
if (!brace.isSimpleOpened()) unexpectedToken(brace, "(");
result.setNamespace(analyzer.getNamespace());
result.setName((NameToken) next);
processArguments(result, iterator);
processBody(result, iterator);
result.setLabels(analyzer.getScope().getLabels());
result.setLocal(analyzer.removeScope().getVariables());
analyzer.setFunction(oldFunction);
return result;
} else if (next instanceof BraceExprToken) {
// xClosure
if (((BraceExprToken) next).isSimpleOpened()) {
if (closureAllowed) {
analyzer.pushClosure(result);
analyzer.addScope(true);
processArguments(result, iterator);
processUses(result, iterator);
processBody(result, iterator);
// boolean thisExists = result.isThisExists();
result.setLabels(analyzer.getScope().getLabels());
result.setStaticExists(analyzer.getScope().isStaticExists());
result.setLocal(analyzer.removeScope().getVariables());
// result.setThisExists(thisExists);
analyzer.popClosure();
FunctionStmtToken prevClosure = analyzer.peekClosure();
if (prevClosure != null) {
if (result.isThisExists()) {
analyzer.getScope().addVariable(FunctionStmtToken.thisVariable);
// prevClosure.variable(FunctionStmtToken.thisVariable).setUsed(true);
// prevClosure.setThisExists(true);
}
}
List<VariableExprToken> uses = new ArrayList<VariableExprToken>();
for (ArgumentStmtToken argument : result.getUses()) {
if (argument.isReference()) {
if (analyzer.getFunction() != null) {
analyzer.getFunction().variable(argument.getName()).setReference(true);
}
}
uses.add(argument.getName());
}
analyzer.getScope().addVariables(uses);
return result;
}
iterator.previous();
return null;
}
}
unexpectedToken(next);
}
return null;
}