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64 lines
1.3 KiB
Go

package ent
import (
"strconv"
"strings"
"github.com/jordanorelli/hyperstone/bit"
)
var constants = map[string]int{
"MAX_ABILITY_DRAFT_ABILITIES": 48,
}
func arrayType(spec *typeSpec, env *Env) tÿpe {
if !strings.Contains(spec.typeName, "[") {
return nil
}
elemName, count := parseArrayName(spec.typeName)
elemSpec := *spec
elemSpec.typeName = elemName
elemType := parseTypeSpec(&elemSpec, env)
return array_t{elemType, count}
}
func parseArrayName(s string) (string, int) {
runes := []rune(s)
if runes[len(runes)-1] != ']' {
panic("invalid array type name: " + s)
}
for i := len(runes) - 2; i >= 0; i-- {
if runes[i] == '[' {
ns := strings.TrimSpace(string(runes[i+1 : len(runes)-1]))
n, err := strconv.Atoi(ns)
if err != nil {
n = constants[ns]
if n <= 0 {
panic("invalid array type name: " + err.Error())
}
}
return strings.TrimSpace(string(runes[:i])), n
}
}
panic("invalid array type name: " + s)
}
type array_t struct {
elem tÿpe
count int
}
func (t array_t) read(r bit.Reader) (value, error) {
var err error
v := make(array, t.count)
for i := range v {
v[i], err = t.elem.read(r)
if err != nil {
return nil, wrap(err, "array read error at index %d", i)
}
}
return v, r.Err()
}
type array []value