func (v *BreakAndNextCheck) Visit(s *SemanticAnalyzer, n ast.Node) {
switch n := n.(type) {
case *ast.NextStat, *ast.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 *ast.LoopStat:
v.nestedLoopCount[v.functions[len(v.functions)-1]]++
case *ast.FunctionDecl:
v.functions = append(v.functions, n.Function)
case *ast.LambdaExpr:
v.functions = append(v.functions, n.Function)
}
}
func (v *UnusedCheck) Visit(s *SemanticAnalyzer, n ast.Node) {
switch n := n.(type) {
case *ast.VariableDecl:
if !n.IsPublic() {
v.encountered = append(v.encountered, n.Variable)
v.encounteredDecl = append(v.encounteredDecl, n)
}
case *ast.DestructVarDecl:
if !n.IsPublic() {
for idx, vari := range n.Variables {
if !n.ShouldDiscard[idx] {
v.encountered = append(v.encountered, vari)
v.encounteredDecl = append(v.encounteredDecl, n)
}
}
}
case *ast.FunctionDecl:
if !n.IsPublic() {
v.encountered = append(v.encountered, n.Function)
v.encounteredDecl = append(v.encounteredDecl, n)
}
}
switch n := n.(type) {
case *ast.FunctionAccessExpr:
v.uses[n.Function]++
case *ast.VariableAccessExpr:
v.uses[n.Variable]++
}
}
func (v *UnreachableCheck) PostVisit(s *SemanticAnalyzer, n ast.Node) {
switch n := n.(type) {
case *ast.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 *ast.FunctionDecl:
v.visitFunction(s, n, n.Function)
case *ast.LambdaExpr:
v.visitFunction(s, n, n.Function)
}
}
func (v *MiscCheck) Visit(s *SemanticAnalyzer, n ast.Node) {
switch n.(type) {
case *ast.FunctionDecl, *ast.LambdaExpr:
v.InFunction++
}
if v.InFunction <= 0 {
switch n.(type) {
case *ast.ReturnStat:
s.Err(n, "%s must be in function", util.CapitalizeFirst(n.NodeName()))
}
} else {
switch n.(type) {
case *ast.TypeDecl:
s.Err(n, "%s must not be in function", util.CapitalizeFirst(n.NodeName()))
case *ast.FunctionDecl:
if v.InFunction > 1 {
s.Err(n, "%s must not be in function", util.CapitalizeFirst(n.NodeName()))
}
}
}
}