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v/examples/compiletime/methods.v

39 lines
897 B
V

struct App {}
fn (mut app App) method_one() {}
fn (mut app App) method_two() int {
return 0
}
fn (mut app App) method_three(s string) string {
return s
}
fn main() {
$for method in App.methods {
$if method.typ is fn (string) string {
println('${method.name} IS `fn(string) string`')
} $else {
println('${method.name} is NOT `fn(string) string`')
}
$if method.return_type !is int {
println('${method.name} does NOT return `int`')
} $else {
println('${method.name} DOES return `int`')
}
$if method.args[0].typ !is string {
println("${method.name}'s first arg is NOT `string`")
} $else {
println("${method.name}'s first arg IS `string`")
}
// TODO: Double inversion, should this even be allowed?
$if method.typ is fn () {
println('${method.name} IS a void method')
} $else {
println('${method.name} is NOT a void method')
}
println('')
}
}