func compilePackage(compiler llgo.Compiler, fset *token.FileSet, files map[string]*ast.File, importpath string) (*llgo.Module, error) {
// make a package (resolve all identifiers)
pkg, err := ast.NewPackage(fset, files, types.GcImport, types.Universe)
if err != nil {
report(err)
return nil, err
}
// an empty importpath means the same as the package name
if importpath == "" {
importpath = pkg.Name
}
exprTypes, err := types.Check(importpath, compiler, fset, pkg)
if err != nil {
report(err)
return nil, err
}
if *dumpast {
ast.Fprint(os.Stderr, fset, pkg, nil)
os.Exit(0)
}
return compiler.Compile(fset, pkg, importpath, exprTypes)
}
func compileFiles(compiler llgo.Compiler, filenames []string, importpath string) (*llgo.Module, error) {
i := 0
for _, filename := range filenames {
switch _, err := os.Stat(filename); {
case err != nil:
report(err)
default:
filenames[i] = filename
i++
}
}
if i == 0 {
return nil, errors.New("No Go source files were specified")
}
fset := token.NewFileSet()
files := parseFiles(fset, filenames[0:i])
return compiler.Compile(fset, files, importpath)
}