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create tag maps only when needed

master
Oliver Tonnhofer 2013-06-03 11:03:19 +02:00
parent 767e4f7ce8
commit f1623d1432
1 changed files with 8 additions and 1 deletions
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9
parser/pbf.go
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@ -101,7 +101,8 @@ func ReadDenseNodes(
}
func ParseDenseNodeTags(stringtable StringTable, keysVals *[]int32, pos *int) map[string]string {
result := make(map[string]string)
// make map later if needed
var result map[string]string
for {
if *pos >= len(*keysVals) {
return result
@ -113,11 +114,17 @@ func ParseDenseNodeTags(stringtable StringTable, keysVals *[]int32, pos *int) ma
}
val := (*keysVals)[*pos]
*pos += 1
if result == nil {
result = make(map[string]string)
}
result[stringtable[key]] = stringtable[val]
}
}
func ParseTags(stringtable StringTable, keys []uint32, vals []uint32) map[string]string {
if len(keys) == 0 {
return nil
}
tags := make(map[string]string)
for i := 0; i < len(keys); i++ {
key := stringtable[keys[i]]