mirror of
https://github.com/golang/go
synced 2024-10-04 05:21:22 -06:00
be2edb5761
plus significant hand editing.
Back to T{x} for composite literals.
R=r
OCL=25612
CL=25632
354 lines
11 KiB
Go
354 lines
11 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package reflect
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import (
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"reflect";
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"testing"
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)
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var doprint bool = false
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func is_digit(c uint8) bool {
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return '0' <= c && c <= '9'
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}
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// streq, but '@' in t matches a string of digits
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func match(s, t string) bool {
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for i, j := 0, 0; i < len(s) && j < len(t); i, j = i+1, j+1 {
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if s[i] == t[j] {
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continue
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}
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if is_digit(s[i]) && t[j] == '@' {
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for is_digit(s[i+1]) {
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i++
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}
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} else {
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return false
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}
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}
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return true;
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}
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func assert(s, t string) {
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if doprint {
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println(t)
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}
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if !match(s, t) {
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panicln(s, t)
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}
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}
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func typedump(s, t string) {
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typ := reflect.ParseTypeString("", s);
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assert(reflect.TypeToString(typ, true), t);
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}
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func valuedump(s, t string) {
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typ := reflect.ParseTypeString("", s);
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v := reflect.NewInitValue(typ);
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if v == nil {
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panicln("valuedump", s);
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}
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switch v.Kind() {
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case reflect.IntKind:
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v.(reflect.IntValue).Set(132);
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case reflect.Int8Kind:
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v.(reflect.Int8Value).Set(8);
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case reflect.Int16Kind:
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v.(reflect.Int16Value).Set(16);
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case reflect.Int32Kind:
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v.(reflect.Int32Value).Set(32);
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case reflect.Int64Kind:
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v.(reflect.Int64Value).Set(64);
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case reflect.UintKind:
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v.(reflect.UintValue).Set(132);
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case reflect.Uint8Kind:
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v.(reflect.Uint8Value).Set(8);
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case reflect.Uint16Kind:
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v.(reflect.Uint16Value).Set(16);
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case reflect.Uint32Kind:
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v.(reflect.Uint32Value).Set(32);
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case reflect.Uint64Kind:
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v.(reflect.Uint64Value).Set(64);
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case reflect.FloatKind:
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v.(reflect.FloatValue).Set(3200.0);
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case reflect.Float32Kind:
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v.(reflect.Float32Value).Set(32.1);
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case reflect.Float64Kind:
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v.(reflect.Float64Value).Set(64.2);
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case reflect.StringKind:
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v.(reflect.StringValue).Set("stringy cheese");
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case reflect.BoolKind:
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v.(reflect.BoolValue).Set(true);
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}
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assert(reflect.ValueToString(v), t);
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}
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type T struct { a int; b float64; c string; d *int }
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func TestAll(tt *testing.T) { // TODO(r): wrap up better
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var s string;
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var t reflect.Type;
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// Types
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typedump("missing", "$missing$");
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typedump("int", "int");
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typedump("int8", "int8");
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typedump("int16", "int16");
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typedump("int32", "int32");
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typedump("int64", "int64");
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typedump("uint", "uint");
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typedump("uint8", "uint8");
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typedump("uint16", "uint16");
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typedump("uint32", "uint32");
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typedump("uint64", "uint64");
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typedump("float", "float");
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typedump("float32", "float32");
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typedump("float64", "float64");
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typedump("float80", "float80");
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typedump("int8", "int8");
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typedump("whoknows.whatsthis", "$missing$");
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typedump("**int8", "**int8");
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typedump("**P.integer", "**P.integer");
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typedump("[32]int32", "[32]int32");
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typedump("[]int8", "[]int8");
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typedump("map[string]int32", "map[string]int32");
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typedump("chan<-string", "chan<-string");
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typedump("struct {c chan *int32; d float32}", "struct{c chan*int32; d float32}");
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typedump("*(a int8, b int32)", "*(a int8, b int32)");
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typedump("struct {c *(? chan *P.integer, ? *int8)}", "struct{c *(chan*P.integer, *int8)}");
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typedump("struct {a int8; b int32}", "struct{a int8; b int32}");
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typedump("struct {a int8; b int8; b int32}", "struct{a int8; b int8; b int32}");
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typedump("struct {a int8; b int8; c int8; b int32}", "struct{a int8; b int8; c int8; b int32}");
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typedump("struct {a int8; b int8; c int8; d int8; b int32}", "struct{a int8; b int8; c int8; d int8; b int32}");
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typedump("struct {a int8; b int8; c int8; d int8; e int8; b int32}", "struct{a int8; b int8; c int8; d int8; e int8; b int32}");
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typedump("struct {a int8 \"hi there\"; }", "struct{a int8 \"hi there\"}");
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typedump("struct {a int8 \"hi \\x00there\\t\\n\\\"\\\\\"; }", "struct{a int8 \"hi \\x00there\\t\\n\\\"\\\\\"}");
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typedump("struct {f *(args ...)}", "struct{f *(args ...)}");
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// Values
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valuedump("int8", "8");
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valuedump("int16", "16");
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valuedump("int32", "32");
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valuedump("int64", "64");
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valuedump("uint8", "8");
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valuedump("uint16", "16");
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valuedump("uint32", "32");
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valuedump("uint64", "64");
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valuedump("float32", "32.1");
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valuedump("float64", "64.2");
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valuedump("string", "stringy cheese");
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valuedump("bool", "true");
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valuedump("*int8", "*int8(0)");
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valuedump("**int8", "**int8(0)");
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valuedump("[5]int32", "[5]int32{0, 0, 0, 0, 0}");
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valuedump("**P.integer", "**P.integer(0)");
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valuedump("map[string]int32", "map[string]int32{<can't iterate on maps>}");
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valuedump("chan<-string", "chan<-string");
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valuedump("struct {c chan *int32; d float32}", "struct{c chan*int32; d float32}{chan*int32, 0}");
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valuedump("*(a int8, b int32)", "*(a int8, b int32)(0)");
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valuedump("struct {c *(? chan *P.integer, ? *int8)}", "struct{c *(chan*P.integer, *int8)}{*(chan*P.integer, *int8)(0)}");
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valuedump("struct {a int8; b int32}", "struct{a int8; b int32}{0, 0}");
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valuedump("struct {a int8; b int8; b int32}", "struct{a int8; b int8; b int32}{0, 0, 0}");
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{ var tmp = 123;
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value := reflect.NewValue(tmp);
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assert(reflect.ValueToString(value), "123");
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}
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{ var tmp = 123.4;
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value := reflect.NewValue(tmp);
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assert(reflect.ValueToString(value), "123.4");
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}
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{ var tmp = "abc";
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value := reflect.NewValue(tmp);
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assert(reflect.ValueToString(value), "abc");
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}
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{
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var i int = 7;
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var tmp = &T{123, 456.75, "hello", &i};
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value := reflect.NewValue(tmp);
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assert(reflect.ValueToString(value.(reflect.PtrValue).Sub()), "reflect.T{123, 456.75, hello, *int(@)}");
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}
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{
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type C chan *T; // TODO: should not be necessary
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var tmp = new(C);
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value := reflect.NewValue(tmp);
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assert(reflect.ValueToString(value), "*reflect.C·all_test(@)");
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}
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// {
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// type A [10]int;
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// var tmp A = A{1,2,3,4,5,6,7,8,9,10};
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// value := reflect.NewValue(&tmp);
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// assert(reflect.ValueToString(value.(reflect.PtrValue).Sub()), "reflect.A·all_test{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}");
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// value.(reflect.PtrValue).Sub().(reflect.ArrayValue).Elem(4).(reflect.IntValue).Set(123);
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// assert(reflect.ValueToString(value.(reflect.PtrValue).Sub()), "reflect.A·all_test{1, 2, 3, 4, 123, 6, 7, 8, 9, 10}");
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// }
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{
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type AA []int;
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var tmp = AA{1,2,3,4,5,6,7,8,9,10};
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value := reflect.NewValue(&tmp); // TODO: NewValue(tmp) too
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assert(reflect.ValueToString(value.(reflect.PtrValue).Sub()), "reflect.AA·all_test{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}");
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value.(reflect.PtrValue).Sub().(reflect.ArrayValue).Elem(4).(reflect.IntValue).Set(123);
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assert(reflect.ValueToString(value.(reflect.PtrValue).Sub()), "reflect.AA·all_test{1, 2, 3, 4, 123, 6, 7, 8, 9, 10}");
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}
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{
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var ip *int32;
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var i int32 = 1234;
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vip := reflect.NewValue(&ip);
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vi := reflect.NewValue(i);
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vip.(reflect.PtrValue).Sub().(reflect.PtrValue).SetSub(vi);
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if *ip != 1234 {
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panicln("SetSub failure", *ip);
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}
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}
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var pt reflect.PtrType;
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var st reflect.StructType;
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var mt reflect.MapType;
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var at reflect.ArrayType;
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var ct reflect.ChanType;
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var name string;
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var typ reflect.Type;
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var tag string;
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var offset int;
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// Type strings
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t = reflect.ParseTypeString("", "int8");
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assert(t.String(), "int8");
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t = reflect.ParseTypeString("", "*int8");
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assert(t.String(), "*int8");
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pt = t.(reflect.PtrType);
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assert(pt.Sub().String(), "int8");
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t = reflect.ParseTypeString("", "*struct {c chan *int32; d float32}");
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assert(t.String(), "*struct {c chan *int32; d float32}");
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pt = t.(reflect.PtrType);
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assert(pt.Sub().String(), "struct {c chan *int32; d float32}");
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st = pt.Sub().(reflect.StructType);
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name, typ, tag, offset = st.Field(0);
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assert(typ.String(), "chan *int32");
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name, typ, tag, offset = st.Field(1);
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assert(typ.String(), "float32");
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t = reflect.ParseTypeString("", "interface {a() *int}");
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assert(t.String(), "interface {a() *int}");
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t = reflect.ParseTypeString("", "*(a int8, b int32)");
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assert(t.String(), "*(a int8, b int32)");
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t = reflect.ParseTypeString("", "*(a int8, b int32) float");
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assert(t.String(), "*(a int8, b int32) float");
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t = reflect.ParseTypeString("", "*(a int8, b int32) (a float, b float)");
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assert(t.String(), "*(a int8, b int32) (a float, b float)");
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t = reflect.ParseTypeString("", "[32]int32");
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assert(t.String(), "[32]int32");
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at = t.(reflect.ArrayType);
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assert(at.Elem().String(), "int32");
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t = reflect.ParseTypeString("", "map[string]*int32");
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assert(t.String(), "map[string]*int32");
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mt = t.(reflect.MapType);
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assert(mt.Key().String(), "string");
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assert(mt.Elem().String(), "*int32");
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t = reflect.ParseTypeString("", "chan<-string");
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assert(t.String(), "chan<-string");
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ct = t.(reflect.ChanType);
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assert(ct.Elem().String(), "string");
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// make sure tag strings are not part of element type
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t = reflect.ParseTypeString("", "struct{d []uint32 \"TAG\"}");
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st = t.(reflect.StructType);
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name, typ, tag, offset = st.Field(0);
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assert(typ.String(), "[]uint32");
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t = reflect.ParseTypeString("", "[]int32");
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v := reflect.NewSliceValue(t.(ArrayType), 5, 10);
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t1 := reflect.ParseTypeString("", "*[]int32");
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v1 := reflect.NewInitValue(t1);
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if v1 == nil { panic("V1 is nil"); }
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v1.(reflect.PtrValue).SetSub(v);
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a := v1.Interface().(*[]int32);
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println(&a, len(a), cap(a));
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for i := 0; i < len(a); i++ {
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v.Elem(i).(reflect.Int32Value).Set(int32(i));
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}
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for i := 0; i < len(a); i++ {
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println(a[i]);
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}
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}
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func TestInterfaceGet(t *testing.T) {
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var inter struct { e interface{ } };
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inter.e = 123.456;
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v1 := reflect.NewValue(&inter);
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v2 := v1.(reflect.PtrValue).Sub().(reflect.StructValue).Field(0);
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assert(v2.Type().String(), "interface { }");
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i2 := v2.(reflect.InterfaceValue).Get();
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v3 := reflect.NewValue(i2);
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assert(v3.Type().String(), "float");
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}
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func TestCopyArray(t *testing.T) {
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a := []int{ 1, 2, 3, 4, 10, 9, 8, 7 };
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b := []int{ 11, 22, 33, 44, 1010, 99, 88, 77, 66, 55, 44 };
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c := []int{ 11, 22, 33, 44, 1010, 99, 88, 77, 66, 55, 44 };
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va := NewValue(&a);
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vb := NewValue(&b);
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for i := 0; i < len(b); i++ {
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if b[i] != c[i] {
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t.Fatalf("b != c before test");
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}
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}
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for tocopy := 1; tocopy <= 7; tocopy++ {
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vb.(PtrValue).Sub().(ArrayValue).CopyFrom(va.(PtrValue).Sub().(ArrayValue), tocopy);
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for i := 0; i < tocopy; i++ {
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if a[i] != b[i] {
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t.Errorf("1 tocopy=%d a[%d]=%d, b[%d]=%d",
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tocopy, i, a[i], i, b[i]);
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}
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}
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for i := tocopy; i < len(b); i++ {
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if b[i] != c[i] {
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if i < len(a) {
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t.Errorf("2 tocopy=%d a[%d]=%d, b[%d]=%d, c[%d]=%d",
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tocopy, i, a[i], i, b[i], i, c[i]);
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} else {
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t.Errorf("3 tocopy=%d b[%d]=%d, c[%d]=%d",
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tocopy, i, b[i], i, c[i]);
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}
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} else {
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t.Logf("tocopy=%d elem %d is okay\n", tocopy, i);
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}
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}
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}
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}
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func TestBigUnnamedStruct(t *testing.T) {
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b := struct{a,b,c,d int64}{1, 2, 3, 4};
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v := NewValue(b);
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b1 := v.Interface().(struct{a,b,c,d int64});
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if b1.a != b.a || b1.b != b.b || b1.c != b.c || b1.d != b.d {
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t.Errorf("NewValue(%v).Interface().(Big) = %v", b, b1);
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}
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}
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type big struct {
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a, b, c, d, e int64
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}
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func TestBigStruct(t *testing.T) {
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b := big{1, 2, 3, 4, 5};
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v := NewValue(b);
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b1 := v.Interface().(big);
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if b1.a != b.a || b1.b != b.b || b1.c != b.c || b1.d != b.d || b1.e != b.e {
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t.Errorf("NewValue(%v).Interface().(big) = %v", b, b1);
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}
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}
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