clang

type Argument struct {
	Type Type   `parser:" @@                               " json:",omitempty"`
	Name string `parser:" ( @Ident | '(' '*' @Ident ')' )? " json:",omitempty"`
}

type CHeaderFileAST struct {
	Expr []Expr `parser:" @@* " json:",omitempty"`
}

type EnumValue struct {
	Name          string  `parser:" @Ident                     " json:",omitempty"`
	IntValue      *int    `parser:" ( '=' ( @Int               " json:",omitempty"`
	ConstRefValue *string `parser:"              | @Ident ) )? " json:",omitempty"`
}

type Expr struct {
	Comment  string           `parser:"   @Comment " json:",omitempty"`
	Enum     *TypedefEnum     `parser:" | @@ ';'   " json:",omitempty"`
	Alias    *TypedefAlias    `parser:" | @@ ';'   " json:",omitempty"`
	Function *TypedefFunction `parser:" | @@ ';'   " json:",omitempty"`
	Struct   *TypedefStruct   `parser:" | @@ ';'   " json:",omitempty"`
}

type FunctionType struct {
	ReturnType PrimativeType `parser:" @@                          " json:",omitempty"`
	Name       string        `parser:" '(' '*' @Ident ')'          " json:",omitempty"`
	Arguments  []Argument    `parser:" '(' ( @@ ( ',' @@ )* )? ')' " json:",omitempty"`
}

type PrimativeType struct {
	IsConst   bool   `parser:" @'const'? " json:",omitempty"`
	Name      string `parser:" @Ident    " json:",omitempty"`
	IsPointer bool   `parser:" @'*'?     " json:",omitempty"`
}

type StructField struct {
	Variable *StructVariable `parser:" ( @@       " json:",omitempty"`
	Function *StructFunction `parser:" | @@ ) ';' " json:",omitempty"`
}

type StructFunction struct {
	ReturnType PrimativeType `parser:" @@                     " json:",omitempty"`
	Name       string        `parser:" '(' '*' @Ident ')'     " json:",omitempty"`
	Arguments  []Argument    `parser:" '(' @@ ( ',' @@ )* ')' " json:",omitempty"`
	Comment    string        `parser:" @Comment?              " json:",omitempty"`
}

type StructVariable struct {
	Type PrimativeType `parser:" @@     " json:",omitempty"`
	Name string        `parser:" @Ident " json:",omitempty"`
}

type Type struct {
	Function  *FunctionType  `parser:" ( @@   " json:",omitempty"`
	Primative *PrimativeType `parser:" | @@ ) " json:",omitempty"`
}

type TypedefAlias struct {
	Type PrimativeType `parser:" 'typedef' @@ " json:",omitempty"`
	Name string        `parser:" @Ident       " json:",omitempty"`
}

type TypedefEnum struct {
	Values []EnumValue `parser:" 'typedef' 'enum' '{' ( @@ ( ',' Comment? @@ Comment? )* ','? Comment? )? '}' " json:",omitempty"`
	Name   *string     `parser:" @Ident                                                                       " json:",omitempty"`
}

type TypedefFunction struct {
	ReturnType PrimativeType `parser:" 'typedef' @@                " json:",omitempty"`
	Name       string        `parser:" '(' '*' @Ident ')'          " json:",omitempty"`
	Arguments  []Argument    `parser:" '(' ( @@ ( ',' @@ )* )? ')' " json:",omitempty"`
}

type TypedefStruct struct {
	Fields []StructField `parser:" 'typedef' 'struct' '{' @@* '}' " json:",omitempty"`
	Name   string        `parser:" @Ident                         " json:",omitempty"`
}