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compiler: allow to split main package across multiple files

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This commit is contained in:
Evgenii Stratonikov 2020-08-10 18:23:45 +03:00
parent 553e57c2c4
commit a34ba92d46
6 changed files with 63 additions and 33 deletions
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51
pkg/compiler/compiler.go
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@ -1,8 +1,8 @@
package compiler
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"go/ast"
"go/parser"
@ -10,6 +10,7 @@ import (
"io"
"io/ioutil"
"os"
"path"
"strings"
"github.com/nspcc-dev/neo-go/pkg/smartcontract"
@ -85,11 +86,32 @@ func (c *codegen) fillImportMap(f *ast.File, pkg *types.Package) {
func getBuildInfo(name string, src interface{}) (*buildInfo, error) {
conf := loader.Config{ParserMode: parser.ParseComments}
f, err := conf.ParseFile(name, src)
if err != nil {
return nil, err
if src != nil {
f, err := conf.ParseFile(name, src)
if err != nil {
return nil, err
}
conf.CreateFromFiles("", f)
} else {
var names []string
if strings.HasSuffix(name, ".go") {
names = append(names, name)
} else {
ds, err := ioutil.ReadDir(name)
if err != nil {
return nil, fmt.Errorf("'%s' is neither Go source nor a directory", name)
}
for i := range ds {
if !ds[i].IsDir() && strings.HasSuffix(ds[i].Name(), ".go") {
names = append(names, path.Join(name, ds[i].Name()))
}
}
}
if len(names) == 0 {
return nil, errors.New("no files provided")
}
conf.CreateFromFilenames("", names...)
}
conf.CreateFromFiles("", f)
prog, err := conf.Load()
if err != nil {
@ -97,12 +119,14 @@ func getBuildInfo(name string, src interface{}) (*buildInfo, error) {
}
return &buildInfo{
initialPackage: f.Name.Name,
initialPackage: prog.InitialPackages()[0].Pkg.Name(),
program: prog,
}, nil
}
// Compile compiles a Go program into bytecode that can run on the NEO virtual machine.
// If `r != nil`, `name` is interpreted as a filename, and `r` as file contents.
// Otherwise `name` is either file name or name of the directory containing source files.
func Compile(name string, r io.Reader) ([]byte, error) {
buf, _, err := CompileWithDebugInfo(name, r)
if err != nil {
@ -123,21 +147,18 @@ func CompileWithDebugInfo(name string, r io.Reader) ([]byte, *DebugInfo, error)
// CompileAndSave will compile and save the file to disk in the NEF format.
func CompileAndSave(src string, o *Options) ([]byte, error) {
if !strings.HasSuffix(src, ".go") {
return nil, fmt.Errorf("%s is not a Go file", src)
}
o.Outfile = strings.TrimSuffix(o.Outfile, fmt.Sprintf(".%s", fileExt))
if len(o.Outfile) == 0 {
o.Outfile = strings.TrimSuffix(src, ".go")
if strings.HasSuffix(src, ".go") {
o.Outfile = strings.TrimSuffix(src, ".go")
} else {
o.Outfile = "out"
}
}
if len(o.Ext) == 0 {
o.Ext = fileExt
}
b, err := ioutil.ReadFile(src)
if err != nil {
return nil, err
}
b, di, err := CompileWithDebugInfo(src, bytes.NewReader(b))
b, di, err := CompileWithDebugInfo(src, nil)
if err != nil {
return nil, fmt.Errorf("error while trying to compile smart contract file: %w", err)
}