parse

type BuildError struct {
	Line    int
	Element string
	Message string
}

type ComponentDef struct {
	Name       string
	Properties []*Property  // property declarations with defaults
	Signals    []SignalDecl // signal declarations
	Defaults   []*Property  // default attribute values
	Children   []*Node      // child element templates (future)
	Line       int
}

type Document struct {
	Imports    []ImportDecl
	Components []*ComponentDef
	Root       *Node // the root element (Window, VBox, etc.)
}

type ImportDecl struct {
	Path string
	Line int
}

type Node struct {
	TypeName   string
	Properties []*Property
	Children   []*Node
	Line       int
}

type ParseError struct {
	Line    int
	Column  int
	Message string
}

type Property struct {
	Name  string
	Value Value
	Line  int
}

type SignalDecl struct {
	Name string
	Line int
}

type Value struct {
	Kind  ValueKind
	Str   string
	Int   int64
	Float float64
	Bool  bool
}

type ValueKind int