public void visitAssignmentExpression(GrAssignmentExpression expression) {
GrExpression rValue = expression.getRValue();
GrExpression lValue = expression.getLValue();
if (myExpression.equals(rValue)) {
PsiType lType = lValue.getNominalType();
if (lType != null) {
myResult = new TypeConstraint[] {SubtypeConstraint.create(lType)};
} else if (lValue instanceof GrReferenceExpression) {
GroovyResolveResult result = ((GrReferenceExpression) lValue).advancedResolve();
PsiElement resolved = result.getElement();
if (resolved instanceof GrVariable) {
PsiType type = ((GrVariable) resolved).getTypeGroovy();
if (type != null) {
myResult =
new TypeConstraint[] {
SubtypeConstraint.create(result.getSubstitutor().substitute(type))
};
}
}
}
} else if (myExpression.equals(lValue)) {
if (rValue != null) {
PsiType rType = rValue.getType();
if (rType != null) {
myResult = new TypeConstraint[] {SupertypeConstraint.create(rType)};
}
}
}
}
public void visitAssignmentExpression(GrAssignmentExpression expression) {
GrExpression lValue = expression.getLValue();
if (expression.getOperationTokenType() != mASSIGN) {
if (lValue instanceof GrReferenceExpression
&& myPolicy.isReferenceAccepted((GrReferenceExpression) lValue)) {
String referenceName = ((GrReferenceExpression) lValue).getReferenceName();
if (referenceName != null) {
addNodeAndCheckPending(new ReadWriteVariableInstruction(referenceName, lValue, READ));
}
}
}
GrExpression rValue = expression.getRValue();
if (rValue != null) {
rValue.accept(this);
lValue.accept(this);
}
}
private static boolean assignmentExpressionsAreEquivalent(
@NotNull GrAssignmentExpression assignExp1, @NotNull GrAssignmentExpression assignExp2) {
final IElementType sign1 = assignExp1.getOperationToken();
final IElementType sign2 = assignExp2.getOperationToken();
if (!sign1.equals(sign2)) {
return false;
}
final GrExpression lhs1 = assignExp1.getLValue();
final GrExpression lhs2 = assignExp2.getLValue();
final GrExpression rhs1 = assignExp1.getRValue();
final GrExpression rhs2 = assignExp2.getRValue();
return expressionsAreEquivalent(lhs1, lhs2) && expressionsAreEquivalent(rhs1, rhs2);
}