@Override
public void visit(Tree.WhileStatement that) {
Tree.WhileClause whileClause = that.getWhileClause();
Tree.ConditionList conditionList = whileClause.getConditionList();
Tree.ConditionList cl = conditionList;
if (cl != null) {
cl.visit(this);
}
boolean d = beginDeclarationScope();
SpecificationState as = beginSpecificationScope();
Tree.Block block = whileClause.getBlock();
if (block != null) {
if (isVariable() || isLate()) {
block.visit(this);
} else {
boolean c = inLoop;
inLoop = true;
block.visit(this);
inLoop = c;
}
}
boolean possiblyAssignedByWhileClause = specified.possibly;
boolean definitelyAssignedByWhileClause = specified.definitely;
endDeclarationScope(d);
endSpecificationScope(as);
specified.definitely =
specified.definitely
|| (definitelyAssignedByWhileClause && isAlwaysSatisfied(conditionList));
specified.possibly =
specified.possibly || (possiblyAssignedByWhileClause && !isNeverSatisfied(conditionList));
checkDeclarationSection(that);
}
@Override
public void visit(Tree.IfStatement that) {
if (that == lastContinueStatement) {
lastContinueStatement = null;
}
Tree.IfClause ifClause = that.getIfClause();
Tree.ConditionList conditionList = ifClause.getConditionList();
if (ifClause != null) {
Tree.ConditionList cl = conditionList;
if (cl != null) {
cl.visit(this);
}
}
boolean d = beginDeclarationScope();
SpecificationState as = beginSpecificationScope();
if (ifClause != null) {
Tree.Block block = ifClause.getBlock();
if (block != null) {
block.visit(this);
}
}
boolean definitelyAssignedByIfClause = specified.definitely || specified.exited;
boolean possiblyAssignedByIfClause = specified.possibly;
boolean possiblyExitedFromIfClause = specified.exited;
boolean specifiedByExitsFromIfClause = specified.byExits;
endDeclarationScope(d);
endSpecificationScope(as);
boolean definitelyAssignedByElseClause;
boolean possiblyAssignedByElseClause;
boolean possiblyExitedFromElseClause;
boolean specifiedByExitsFromElseClause;
Tree.ElseClause elseClause = that.getElseClause();
if (elseClause != null) {
d = beginDeclarationScope();
as = beginSpecificationScope();
elseClause.visit(this);
definitelyAssignedByElseClause = specified.definitely || specified.exited;
possiblyAssignedByElseClause = specified.possibly;
possiblyExitedFromElseClause = specified.exited;
specifiedByExitsFromElseClause = specified.byExits;
endDeclarationScope(d);
endSpecificationScope(as);
} else {
definitelyAssignedByElseClause = false;
possiblyAssignedByElseClause = false;
possiblyExitedFromElseClause = false;
specifiedByExitsFromElseClause = true;
}
if (isAlwaysSatisfied(conditionList)) {
specified.definitely = specified.definitely || definitelyAssignedByIfClause;
specified.possibly = specified.possibly || possiblyAssignedByIfClause;
specified.exited = specified.exited || possiblyExitedFromIfClause;
specified.byExits = specified.byExits && specifiedByExitsFromIfClause;
} else if (isNeverSatisfied(conditionList)) {
specified.definitely = specified.definitely || definitelyAssignedByElseClause;
specified.possibly = specified.possibly || possiblyAssignedByElseClause;
specified.exited = specified.exited || possiblyExitedFromElseClause;
specified.byExits = specified.byExits && specifiedByExitsFromElseClause;
} else {
specified.definitely =
specified.definitely || definitelyAssignedByIfClause && definitelyAssignedByElseClause;
specified.possibly =
specified.possibly || possiblyAssignedByIfClause || possiblyAssignedByElseClause;
specified.exited =
specified.exited || possiblyExitedFromIfClause || possiblyExitedFromElseClause;
specified.byExits =
specified.byExits && specifiedByExitsFromIfClause && specifiedByExitsFromElseClause;
}
checkDeclarationSection(that);
}
