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Copy pathunop_gen.go
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145 lines (129 loc) · 3.38 KB
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//go:build ignore
// +build ignore
/*
* Copyright (c) 2022 The GoPlus Authors (goplus.org). All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package main
import (
"bytes"
"fmt"
"go/format"
"io/ioutil"
"os"
"strings"
)
var (
ints = []string{"int", "int8", "int16", "int32", "int64",
"uint", "uint8", "uint16", "uint32", "uint64", "uintptr"}
floats = []string{"float32", "float64"}
comps = []string{"complex64", "complex128"}
)
func json(kinds ...[]string) (r []string) {
for _, kind := range kinds {
r = append(r, kind...)
}
return
}
func main() {
var buf bytes.Buffer
buf.WriteString(pkg_head)
makeFuncOp(&buf, "makeUnOpSUB", "-", "Neg", json(ints, floats, comps))
makeFuncOp(&buf, "makeUnOpXOR", "^", "Xor", json(ints))
data, err := format.Source(buf.Bytes())
if err != nil {
fmt.Println("format error", err)
os.Exit(2)
}
ioutil.WriteFile("./unop.go", data, 0666)
}
func makeFuncOp(buf *bytes.Buffer, fnname string, op string, neg string, kinds []string) {
buf.WriteString(strings.Replace(func_head_op, "$NAME", fnname, 1))
buf.WriteString(`if typ.PkgPath() == "" {
switch typ.Kind() {
`)
for _, kind := range kinds {
r := strings.NewReplacer(
"Int", strings.Title(kind),
"int", kind,
"-", op,
"Neg", neg)
r.WriteString(buf, func_case1)
}
buf.WriteString(`}
} else {
switch typ.Kind() {
`)
for _, kind := range kinds {
r := strings.NewReplacer(
"Int", strings.Title(kind),
"-", op,
"Neg", neg)
r.WriteString(buf, func_case2)
}
buf.WriteString(`}
}
panic("unreachable")
}`)
}
var pkg_head = `/*
* Copyright (c) 2022 The GoPlus Authors (goplus.org). All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package igop
import (
"reflect"
"github.com/visualfc/xtype"
"golang.org/x/tools/go/ssa"
)
`
var func_head_op = `
func $NAME(pfn *function, instr *ssa.UnOp) func(fr *frame) {
ir := pfn.regIndex(instr)
ix, kx, vx := pfn.regIndex3(instr.X)
typ := pfn.Interp.preToType(instr.Type())
`
var func_case1 = `case reflect.Int:
if kx == kindConst {
v := -vx.(int)
return func(fr *frame) { fr.setReg(ir, v) }
} else {
return func(fr *frame) {
v := -fr.reg(ix).(int)
fr.setReg(ir, v)
}
}
`
var func_case2 = `case reflect.Int:
if kx == kindConst {
v := xtype.NegInt(vx)
return func(fr *frame) { fr.setReg(ir, v) }
} else {
return func(fr *frame) {
v := xtype.NegInt(fr.reg(ix))
fr.setReg(ir, v)
}
}
`