func (p *Parser) consumeFunc() *ast.Func {
t := p.next()
if !p.isExpected(t, token.Func) {
return nil
}
f := ast.Func{
Name: t.String(),
}
f.File = p.name
f.Line = t.Line
f.Position = t.Start
t = p.next()
if !p.isExpected(t, token.LeftParen) {
return nil
}
p.consumeParams(&f)
return &f
}
func (p *Parser) consumeParams(f *ast.Func) {
for {
switch p.peek().Type {
case token.Quote, token.LeftBrac, token.Func:
f.AnonParams = append(f.AnonParams, p.consumeNode())
case token.String:
t := p.next()
if f.Params == nil {
f.Params = make(map[string]interface{})
}
if p.expects(p.peek(), []token.Type{token.Colon, token.Equal}) {
switch p.next().Type {
case token.Colon:
case token.Equal:
f.Params[t.String()] = p.consumeNode()
}
} else {
return
}
default:
return
}
if p.expects(p.peek(), []token.Type{token.RightParen, token.Comma}) {
DANGLING_COMMA:
switch p.peek().Type {
case token.RightParen:
p.next()
return
case token.Comma:
p.next()
if p.peek().Type == token.RightParen {
goto DANGLING_COMMA
}
continue
}
}
}
}