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Diffstat (limited to 'usr/r/reflect/main.go')
-rw-r--r--usr/r/reflect/main.go102
1 files changed, 72 insertions, 30 deletions
diff --git a/usr/r/reflect/main.go b/usr/r/reflect/main.go
index 0348cef9f..1967ed7c3 100644
--- a/usr/r/reflect/main.go
+++ b/usr/r/reflect/main.go
@@ -8,37 +8,79 @@ import (
"reflect"
)
+func typedump(s string) {
+ t := reflect.ParseTypeString(s);
+ print(reflect.TypeToString(t),"; size = ", t.Size(), "\n");
+}
+
+func valuedump(s string) {
+ t := reflect.ParseTypeString(s);
+ v := reflect.NewInitValue(t);
+ switch v.Kind() {
+ case reflect.Int8Kind:
+ v.(reflect.Int8Value).Put(8);
+ case reflect.Int16Kind:
+ v.(reflect.Int16Value).Put(16);
+ case reflect.Int32Kind:
+ v.(reflect.Int32Value).Put(32);
+ case reflect.Int64Kind:
+ v.(reflect.Int64Value).Put(64);
+ case reflect.Uint8Kind:
+ v.(reflect.Uint8Value).Put(8);
+ case reflect.Uint16Kind:
+ v.(reflect.Uint16Value).Put(16);
+ case reflect.Uint32Kind:
+ v.(reflect.Uint32Value).Put(32);
+ case reflect.Uint64Kind:
+ v.(reflect.Uint64Value).Put(64);
+ case reflect.Float32Kind:
+ v.(reflect.Float32Value).Put(320.0);
+ case reflect.Float64Kind:
+ v.(reflect.Float32Value).Put(640.0);
+ case reflect.StringKind:
+ v.(reflect.StringValue).Put("stringy cheese");
+ }
+ print(s, " value = ", reflect.ValueToString(v), "\n");
+}
+
func main() {
var s string;
var t reflect.Type;
-
- t = reflect.ParseTypeString("int8");
- s = reflect.ToString(t); print(s, "\n");
-
- t = reflect.ParseTypeString("**int8");
- s = reflect.ToString(t); print(s, "\n");
-
- t = reflect.ParseTypeString("**P.integer");
- s = reflect.ToString(t); print(s, "\n");
-
- t = reflect.ParseTypeString("[32]int32");
- s = reflect.ToString(t); print(s, "\n");
-
- t = reflect.ParseTypeString("[]int8");
- s = reflect.ToString(t); print(s, "\n");
-
- t = reflect.ParseTypeString("map[string]int32");
- s = reflect.ToString(t); print(s, "\n");
-
- t = reflect.ParseTypeString("*chan<-string");
- s = reflect.ToString(t); print(s, "\n");
-
- t = reflect.ParseTypeString("struct {c *chan *int32; d float32}");
- s = reflect.ToString(t); print(s, "\n");
-
- t = reflect.ParseTypeString("*(a int8, b int32)");
- s = reflect.ToString(t); print(s, "\n");
-
- t = reflect.ParseTypeString("struct {c *(? *chan *P.integer, ? *int8)}");
- s = reflect.ToString(t); print(s, "\n");
+
+ typedump("int8");
+ typedump("int16");
+ typedump("int32");
+ typedump("int64");
+ typedump("uint8");
+ typedump("uint16");
+ typedump("uint32");
+ typedump("uint64");
+ typedump("float32");
+ typedump("float64");
+ typedump("float80");
+ typedump("int8");
+ typedump("**int8");
+ typedump("**P.integer");
+ typedump("[32]int32");
+ typedump("[]int8");
+ typedump("*map[string]int32");
+ typedump("*chan<-string");
+ typedump("struct {c *chan *int32; d float32}");
+ typedump("*(a int8, b int32)");
+ typedump("struct {c *(? *chan *P.integer, ? *int8)}");
+ typedump("struct {a int8; b int32}");
+ typedump("struct {a int8; b int8; b int32}");
+ typedump("struct {a int8; b int8; c int8; b int32}");
+ typedump("struct {a int8; b int8; c int8; d int8; b int32}");
+ typedump("struct {a int8; b int8; c int8; d int8; e int8; b int32}");
+
+ valuedump("int8");
+ valuedump("int16");
+ valuedump("int32");
+ valuedump("int64");
+ valuedump("uint8");
+ valuedump("uint16");
+ valuedump("uint32");
+ valuedump("uint64");
+ valuedump("string");
}