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//===- parser.go - parser wrapper -----------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains functions for calling the parser in an appropriate way for
// llgo.
//
//===----------------------------------------------------------------------===//
package driver
import (
"fmt"
"go/ast"
"go/parser"
"go/scanner"
"go/token"
)
func parseFile(fset *token.FileSet, filename string) (*ast.File, error) {
// Retain comments; this is important for annotation processing.
mode := parser.DeclarationErrors | parser.ParseComments
return parser.ParseFile(fset, filename, nil, mode)
}
func ParseFiles(fset *token.FileSet, filenames []string) ([]*ast.File, error) {
files := make([]*ast.File, len(filenames))
for i, filename := range filenames {
file, err := parseFile(fset, filename)
if _, ok := err.(scanner.ErrorList); ok {
return nil, err
} else if err != nil {
return nil, fmt.Errorf("%q: %v", filename, err)
}
files[i] = file
}
return files, nil
}
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