Example #1
0
func exprToName(e *ast.Expr) *ast.NameExpr {
	if e.GetBuiltIn() != nil {
		if e.GetBuiltIn().GetSymbol().String() == "==" {
			if e.GetBuiltIn().GetExpr().GetTerminal() != nil {
				t := e.GetBuiltIn().GetExpr().GetTerminal()
				if t.DoubleValue != nil {
					return ast.NewDoubleName(t.GetDoubleValue())
				}
				if t.IntValue != nil {
					return ast.NewIntName(t.GetIntValue())
				}
				if t.UintValue != nil {
					return ast.NewUintName(t.GetUintValue())
				}
				if t.BoolValue != nil {
					return ast.NewBoolName(t.GetBoolValue())
				}
				if t.StringValue != nil {
					return ast.NewStringName(t.GetStringValue())
				}
				if t.BytesValue != nil {
					return ast.NewBytesName(t.GetBytesValue())
				}
			} else {
				panic("todo")
			}
		} else {
			panic("todo")
		}
	}
	if e.GetFunction() != nil {
		if e.GetFunction().GetName() == "not" {
			return ast.NewAnyNameExcept(exprToName(e.GetFunction().GetParams()[0]))
		}
		if e.GetFunction().GetName() == "or" {
			return ast.NewNameChoice(
				exprToName(e.GetFunction().GetParams()[0]),
				exprToName(e.GetFunction().GetParams()[1]),
			)
		}
		panic("todo")
	}
	if e.GetTerminal() != nil {
		if e.GetTerminal().BoolValue != nil {
			if e.GetTerminal().GetBoolValue() {
				return ast.NewAnyName()
			} else {
				panic("todo")
			}
		} else {
			panic("todo")
		}
	}
	panic("todo")
}
Example #2
0
func (this *nameToNumber) translateName(current *context, name *ast.NameExpr, child *ast.Pattern) (*ast.Pattern, error) {
	switch n := name.GetValue().(type) {
	case *ast.Name:
		if current.index {
			if n.IntValue == nil {
				return nil, &errExpectedArray{name.String(), current}
			}
			c := &context{current.msg, false}
			newp, err := this.translate(c, child)
			if err != nil {
				return nil, err
			}
			return ast.NewTreeNode(name, newp), nil
		}
		if n.StringValue == nil {
			return nil, &errExpectedField{name.String(), current}
		}
		f := getField(this.descMap.LookupFields(current.msg), n.GetStringValue())
		if f == nil {
			return nil, &errUnknownField{name.String(), current}
		}
		msg := this.descMap.LookupMessage(f)
		c := &context{msg, f.IsRepeated()}
		newp, err := this.translate(c, child)
		if err != nil {
			return nil, err
		}
		newName := ast.NewUintName(uint64(f.GetNumber()))
		return ast.NewTreeNode(newName, newp), nil
	case *ast.AnyName:
		if current.index {
			c := &context{current.msg, false}
			newp, err := this.translate(c, child)
			if err != nil {
				return nil, err
			}
			return ast.NewTreeNode(name, newp), nil
		} else {
			return nil, &errAnyFieldNotSupported{name.String()}
		}
	case *ast.AnyNameExcept:
		return nil, &errAnyNameExceptNotSupported{name.String()}
	case *ast.NameChoice:
		l, err1 := this.translateName(current, n.GetLeft(), child)
		r, err2 := this.translateName(current, n.GetRight(), child)
		return ast.NewOr(l, r), anyErr(err1, err2)
	}
	panic(fmt.Sprintf("unknown name typ %T", name))
}