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c.go
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c.go
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/*
* 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 cl
import (
"strings"
"github.com/goplus/gop/ast"
"github.com/goplus/gox"
)
const (
c2goInvalid = iota
c2goStandard
c2goUserDef
)
func checkC2go(pkgPath string) (realPkgPath string, kind int) {
if strings.HasPrefix(pkgPath, "C") {
if len(pkgPath) == 1 {
return "libc", c2goStandard
}
if pkgPath[1] == '/' {
realPkgPath = pkgPath[2:]
if strings.IndexByte(realPkgPath, '/') < 0 {
kind = c2goStandard
} else {
kind = c2goUserDef
}
}
}
return
}
func c2goBase(base string) string {
if base == "" {
base = "github.com/goplus/"
} else if !strings.HasSuffix(base, "/") {
base += "/"
}
return base
}
// -----------------------------------------------------------------------------
func loadC2goPkg(ctx *blockCtx, realPath string, src *ast.BasicLit) *gox.PkgRef {
cpkg, err := ctx.cpkgs.Import(realPath)
if err != nil {
pos := ctx.Position(src.Pos())
ctx.handleCodeErrorf(&pos,
"%v not found or not a valid C package (c2go.a.pub file not found).\n", realPath)
return nil
}
ctx.clookups = append(ctx.clookups, cpkg)
return cpkg.Pkg()
}
// -----------------------------------------------------------------------------