package lang

type Program struct {
	PackagePath string
	Imports     []ImportDecl
	Interfaces  []InterfaceDecl
	Enums       []EnumDecl
	Classes     []ClassDecl
	Functions   []FunctionDecl
	Embeds      []EmbedDecl
}

type EmbedDecl struct {
	Path, Name, Type string
	TypeRef          TypeRef
}

type EnumDecl struct {
	Name     string
	Variants []EnumVariant
	String   bool
}
type EnumVariant struct {
	Name         string
	PayloadTypes []string
	PayloadRefs  []TypeRef
	StringValue  string
}

type ImportDecl struct {
	Alias string
	Path  string
}

type InterfaceDecl struct {
	Name    string
	Methods []FunctionSignature
}

type ClassDecl struct {
	Name       string
	TypeParams []string
	Data       bool
	JSONNaming string
	Table      string
	Fields     []FieldDecl
	Parents    []string
	Methods    []FunctionDecl
}

type FieldDecl struct {
	Mutable   bool
	Private   bool
	Name      string
	Type      string
	TypeRef   TypeRef
	Column    string
	ID        bool
	Generated bool
}

type FunctionSignature struct {
	Name           string
	TypeParams     []string
	Params         []Param
	ReturnType     string
	ReturnRef      TypeRef
	ReturnExplicit bool
}

type FunctionDecl struct {
	Name           string
	TypeParams     []string
	Params         []Param
	ReturnType     string
	ReturnRef      TypeRef
	ReturnExplicit bool
	Body           []Stmt
	ExpressionBody Expr
	InferReturn    bool
}

type Param struct {
	Name    string
	Type    string
	TypeRef TypeRef
}

type Stmt interface {
	stmtNode()
}

type Expr interface {
	exprNode()
}

type VarDecl struct {
	Mutable bool
	Name    string
	Pos     int
	Type    string
	TypeRef TypeRef
	Value   Expr
}

func (VarDecl) stmtNode() {}

type MultiVarDecl struct {
	Mutable bool
	Names   []string
	Value   Expr
}

func (MultiVarDecl) stmtNode() {}

type AssignStmt struct {
	Name  string
	Pos   int
	Value Expr
}

func (AssignStmt) stmtNode() {}

type AddAssignStmt struct {
	Name  string
	Pos   int
	Value Expr
}

func (AddAssignStmt) stmtNode() {}

type MultiAssignStmt struct {
	Names     []string
	Positions []int
	Value     Expr
}

func (MultiAssignStmt) stmtNode() {}

type ReturnStmt struct {
	Value Expr
}

func (ReturnStmt) stmtNode() {}

type ThrowStmt struct {
	Value Expr
}

func (ThrowStmt) stmtNode() {}

type DeferStmt struct {
	Value Expr
}

func (DeferStmt) stmtNode() {}

type ExprStmt struct {
	Value Expr
}

func (ExprStmt) stmtNode() {}

type IfStmt struct {
	Cond Expr
	Then []Stmt
	Else []Stmt
}

func (IfStmt) stmtNode() {}

type WhileStmt struct {
	Cond Expr
	Body []Stmt
}

func (WhileStmt) stmtNode() {}

type ForEachStmt struct {
	Name   string
	Source Expr
	Body   []Stmt
}

func (ForEachStmt) stmtNode() {}

type TryCatchStmt struct {
	TryBody   []Stmt
	CatchName string
	CatchType string
	CatchRef  TypeRef
	CatchBody []Stmt
}

func (TryCatchStmt) stmtNode() {}

type MatchStmt struct {
	Value Expr
	Cases []MatchCase
}

func (MatchStmt) stmtNode() {}

type MatchCase struct {
	EnumName, VariantName string
	Bindings              []string
	Body                  []Stmt
}

type MatchExpr struct {
	Meta  ExprMeta
	Value Expr
	Cases []MatchExprCase
}

func (MatchExpr) exprNode() {}

type MatchExprCase struct {
	EnumName, VariantName string
	Bindings              []string
	Value                 Expr
}

type IdentExpr struct {
	Meta ExprMeta
	Name string
	Pos  int
}

func (IdentExpr) exprNode() {}

type IntExpr struct {
	Meta  ExprMeta
	Value string
}

func (IntExpr) exprNode() {}

type FloatExpr struct {
	Meta  ExprMeta
	Value string
}

func (FloatExpr) exprNode() {}

type StringExpr struct {
	Meta  ExprMeta
	Value string
}

func (StringExpr) exprNode() {}

type BoolExpr struct {
	Meta  ExprMeta
	Value bool
}

func (BoolExpr) exprNode() {}

type NullExpr struct{ Meta ExprMeta }

func (NullExpr) exprNode() {}

type UnaryExpr struct {
	Meta  ExprMeta
	Op    string
	Value Expr
}

func (UnaryExpr) exprNode() {}

type BinaryExpr struct {
	Meta  ExprMeta
	Left  Expr
	Op    string
	Right Expr
}

func (BinaryExpr) exprNode() {}

type CallExpr struct {
	Meta      ExprMeta
	Callee    Expr
	Args      []Expr
	TypeArgs  []string
	NamedArgs []NamedArg
}

type NamedArg struct {
	Name  string
	Value Expr
}

func (CallExpr) exprNode() {}

type SelectorExpr struct {
	Meta     ExprMeta
	Receiver Expr
	Name     string
	NamePos  int
}

func (SelectorExpr) exprNode() {}

type SafeSelectorExpr struct {
	Meta     ExprMeta
	Receiver Expr
	Name     string
	NamePos  int
}

func (SafeSelectorExpr) exprNode() {}

type NonNullExpr struct {
	Meta  ExprMeta
	Value Expr
}

func (NonNullExpr) exprNode() {}

type TryExpr struct {
	Meta  ExprMeta
	Value Expr
}

func (TryExpr) exprNode() {}

type IndexExpr struct {
	Meta     ExprMeta
	Receiver Expr
	Index    Expr
}

func (IndexExpr) exprNode() {}

type EnumVariantExpr struct {
	Meta                  ExprMeta
	EnumName, VariantName string
	Values                []Expr
}

func (EnumVariantExpr) exprNode() {}

type LambdaExpr struct {
	Meta       ExprMeta
	Params     []Param
	ImplicitIt bool
	Body       []Stmt
}

func (LambdaExpr) exprNode() {}