func declareSymbol(b *builder, sym *sym8.Symbol) bool {
// declare in the scope
exists := b.scope.Declare(sym)
if exists != nil {
b.Errorf(sym.Pos, "%q already declared", sym.Name())
b.Errorf(exists.Pos, " previously declared here")
return false
}
return true
}
func (b *builder) refSym(sym *sym8.Symbol, pos *lex8.Pos) {
// track file dependencies inside a package
if b.deps == nil {
return // no need to track deps
}
symPos := sym.Pos
if symPos == nil {
return // builtin
}
if sym.Pkg() != b.path {
return // cross package reference
}
if pos.File == symPos.File {
return
}
b.deps.add(pos.File, symPos.File)
}
func (lib *lib) declare(s *sym8.Symbol) {
_, found := lib.symbols[s.Name()]
if found {
panic("redeclare")
}
lib.symbols[s.Name()] = s
switch s.Type {
case SymConst:
panic("todo")
case SymFunc:
lib.Pkg.DeclareFunc(s.Name())
case SymVar:
lib.Pkg.DeclareVar(s.Name())
default:
panic("declare with invalid sym type")
}
}