func (v *BreakAndNextCheck) Visit(s *SemanticAnalyzer, n parser.Node) {
switch n := n.(type) {
case *parser.NextStat, *parser.BreakStat:
if v.nestedLoopCount[v.functions[len(v.functions)-1]] == 0 {
s.Err(n, "%s must be in a loop", util.CapitalizeFirst(n.NodeName()))
}
case *parser.LoopStat:
v.nestedLoopCount[v.functions[len(v.functions)-1]]++
case *parser.FunctionDecl:
v.functions = append(v.functions, n.Function)
case *parser.LambdaExpr:
v.functions = append(v.functions, n.Function)
}
}
func (v *MiscCheck) Visit(s *SemanticAnalyzer, n parser.Node) {
if _, ok := n.(*parser.FunctionDecl); ok {
v.InFunction++
}
if v.InFunction <= 0 {
switch n.(type) {
case *parser.ReturnStat:
s.Err(n, "%s must be in function", util.CapitalizeFirst(n.NodeName()))
}
} else {
switch n.(type) {
case *parser.TypeDecl:
s.Err(n, "%s must not be in function", util.CapitalizeFirst(n.NodeName()))
}
}
}
func (v *UnreachableCheck) PostVisit(s *SemanticAnalyzer, n parser.Node) {
switch n := n.(type) {
case *parser.Block:
for i, c := range n.Nodes {
if i < len(n.Nodes)-1 && IsNodeTerminating(c) {
s.Err(n.Nodes[i+1], "Unreachable code")
}
}
if len(n.Nodes) > 0 {
n.IsTerminating = IsNodeTerminating(n.Nodes[len(n.Nodes)-1])
}
case *parser.FunctionDecl:
v.visitFunction(s, n, n.Function)
case *parser.LambdaExpr:
v.visitFunction(s, n, n.Function)
}
}