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|
package compiler
import (
"strings"
)
var basicTypes = map[string]uint64{
"bool": 1,
"int": 2,
"int8": 3,
"int16": 4,
"int32": 5,
"int64": 6,
"uint": 7,
"uint8": 8,
"uint16": 9,
"uint32": 10,
"uint64": 11,
"uintptr": 12,
"float32": 13,
"float64": 14,
"complex64": 15,
"complex128": 16,
"string": 17,
"unsafeptr": 18,
}
func (c *Compiler) assignTypeCodes(typeSlice typeInfoSlice) {
fn := c.mod.NamedFunction("reflect.ValueOf")
if fn.IsNil() {
// reflect.ValueOf is never used, so we can use the most efficient
// encoding possible.
for i, t := range typeSlice {
t.num = uint64(i + 1)
}
return
}
// Assign typecodes the way the reflect package expects.
fallbackIndex := 1
for _, t := range typeSlice {
if strings.HasPrefix(t.name, "type:basic:") {
// Basic types have a typecode with the lowest bit set to 0.
num, ok := basicTypes[t.name[len("type:basic:"):]]
if !ok {
panic("invalid basic type: " + t.name)
}
t.num = num<<1 | 0
} else {
// Fallback types have a typecode with the lowest bit set to 1.
t.num = uint64(fallbackIndex<<1 | 1)
fallbackIndex++
}
}
}
|
