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enhancement: record token.FileSet for every file #1393

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merged 1 commit into from
Nov 26, 2022
Merged

enhancement: record token.FileSet for every file #1393

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32 changes: 27 additions & 5 deletions packages.go
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
package swag

import (
"fmt"
"go/ast"
goparser "go/parser"
"go/token"
Expand All @@ -19,6 +20,7 @@ type PackagesDefinitions struct {
packages map[string]*PackageDefinitions
uniqueDefinitions map[string]*TypeSpecDef
parseDependency bool
debug Debugger
}

// NewPackagesDefinitions create object PackagesDefinitions.
Expand All @@ -30,8 +32,19 @@ func NewPackagesDefinitions() *PackagesDefinitions {
}
}

// CollectAstFile collect ast.file.
func (pkgDefs *PackagesDefinitions) CollectAstFile(packageDir, path string, astFile *ast.File) error {
// ParseFile parse a source file.
func (pkgDefs *PackagesDefinitions) ParseFile(packageDir, path string, src interface{}) error {
// positions are relative to FileSet
fileSet := token.NewFileSet()
astFile, err := goparser.ParseFile(fileSet, path, src, goparser.ParseComments)
if err != nil {
return fmt.Errorf("failed to parse file %s, error:%+v", path, err)
}
return pkgDefs.collectAstFile(fileSet, packageDir, path, astFile)
}

// collectAstFile collect ast.file.
func (pkgDefs *PackagesDefinitions) collectAstFile(fileSet *token.FileSet, packageDir, path string, astFile *ast.File) error {
if pkgDefs.files == nil {
pkgDefs.files = make(map[*ast.File]*AstFileInfo)
}
Expand Down Expand Up @@ -64,6 +77,7 @@ func (pkgDefs *PackagesDefinitions) CollectAstFile(packageDir, path string, astF
}

pkgDefs.files[astFile] = &AstFileInfo{
FileSet: fileSet,
File: astFile,
Path: path,
PackagePath: packageDir,
Expand All @@ -73,9 +87,9 @@ func (pkgDefs *PackagesDefinitions) CollectAstFile(packageDir, path string, astF
}

// RangeFiles for range the collection of ast.File in alphabetic order.
func rangeFiles(files map[*ast.File]*AstFileInfo, handle func(filename string, file *ast.File) error) error {
sortedFiles := make([]*AstFileInfo, 0, len(files))
for _, info := range files {
func (pkgDefs *PackagesDefinitions) RangeFiles(handle func(filename string, file *ast.File) error) error {
sortedFiles := make([]*AstFileInfo, 0, len(pkgDefs.files))
for _, info := range pkgDefs.files {
// ignore package path prefix with 'vendor' or $GOROOT,
// because the router info of api will not be included these files.
if strings.HasPrefix(info.PackagePath, "vendor") || strings.HasPrefix(info.Path, runtime.GOROOT()) {
Expand Down Expand Up @@ -270,6 +284,14 @@ func (pkgDefs *PackagesDefinitions) evaluateAllConstVariables() {
// EvaluateConstValue evaluate a const variable.
func (pkgDefs *PackagesDefinitions) EvaluateConstValue(pkg *PackageDefinitions, cv *ConstVariable, recursiveStack map[string]struct{}) (interface{}, ast.Expr) {
if expr, ok := cv.Value.(ast.Expr); ok {
defer func() {
if err := recover(); err != nil {
if fi, ok := pkgDefs.files[cv.File]; ok {
pos := fi.FileSet.Position(cv.Name.NamePos)
pkgDefs.debug.Printf("warning: failed to evaluate const %s at %s:%d:%d, %v", cv.Name.Name, fi.Path, pos.Line, pos.Column, err)
}
}
}()
if recursiveStack == nil {
recursiveStack = make(map[string]struct{})
}
Expand Down
29 changes: 20 additions & 9 deletions packages_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -10,35 +10,45 @@ import (
"github.com/stretchr/testify/assert"
)

func TestPackagesDefinitions_CollectAstFile(t *testing.T) {
func TestPackagesDefinitions_ParseFile(t *testing.T) {
pd := PackagesDefinitions{}
assert.NoError(t, pd.CollectAstFile("", "", nil))
packageDir := "github.com/swaggo/swag/testdata/simple"
assert.NoError(t, pd.ParseFile(packageDir, "testdata/simple/main.go", nil))
assert.Equal(t, 1, len(pd.packages))
assert.Equal(t, 1, len(pd.files))
}

func TestPackagesDefinitions_collectAstFile(t *testing.T) {
pd := PackagesDefinitions{}
fileSet := token.NewFileSet()
assert.NoError(t, pd.collectAstFile(fileSet, "", "", nil))

firstFile := &ast.File{
Name: &ast.Ident{Name: "main.go"},
}

packageDir := "github.com/swaggo/swag/testdata/simple"
assert.NoError(t, pd.CollectAstFile(packageDir, "testdata/simple/"+firstFile.Name.String(), firstFile))
assert.NoError(t, pd.collectAstFile(fileSet, packageDir, "testdata/simple/"+firstFile.Name.String(), firstFile))
assert.NotEmpty(t, pd.packages[packageDir])

absPath, _ := filepath.Abs("testdata/simple/" + firstFile.Name.String())
astFileInfo := &AstFileInfo{
FileSet: fileSet,
File: firstFile,
Path: absPath,
PackagePath: packageDir,
}
assert.Equal(t, pd.files[firstFile], astFileInfo)

// Override
assert.NoError(t, pd.CollectAstFile(packageDir, "testdata/simple/"+firstFile.Name.String(), firstFile))
assert.NoError(t, pd.collectAstFile(fileSet, packageDir, "testdata/simple/"+firstFile.Name.String(), firstFile))
assert.Equal(t, pd.files[firstFile], astFileInfo)

// Another file
secondFile := &ast.File{
Name: &ast.Ident{Name: "api.go"},
}
assert.NoError(t, pd.CollectAstFile(packageDir, "testdata/simple/"+secondFile.Name.String(), secondFile))
assert.NoError(t, pd.collectAstFile(fileSet, packageDir, "testdata/simple/"+secondFile.Name.String(), secondFile))
}

func TestPackagesDefinitions_rangeFiles(t *testing.T) {
Expand All @@ -62,7 +72,7 @@ func TestPackagesDefinitions_rangeFiles(t *testing.T) {
}

i, expect := 0, []string{"testdata/simple/api/api.go", "testdata/simple/main.go"}
_ = rangeFiles(pd.files, func(filename string, file *ast.File) error {
_ = pd.RangeFiles(func(filename string, file *ast.File) error {
assert.Equal(t, expect[i], filename)
i++
return nil
Expand Down Expand Up @@ -182,7 +192,8 @@ func TestPackagesDefinitions_FindTypeSpec(t *testing.T) {
}

func TestPackage_rangeFiles(t *testing.T) {
files := map[*ast.File]*AstFileInfo{
pd := NewPackagesDefinitions()
pd.files = map[*ast.File]*AstFileInfo{
{
Name: &ast.Ident{Name: "main.go"},
}: {
Expand Down Expand Up @@ -218,10 +229,10 @@ func TestPackage_rangeFiles(t *testing.T) {
sorted = append(sorted, filename)
return nil
}
assert.NoError(t, rangeFiles(files, processor))
assert.NoError(t, pd.RangeFiles(processor))
assert.Equal(t, []string{"testdata/simple/api/api.go", "testdata/simple/main.go"}, sorted)

assert.Error(t, rangeFiles(files, func(filename string, file *ast.File) error {
assert.Error(t, pd.RangeFiles(func(filename string, file *ast.File) error {
return ErrFuncTypeField
}))

Expand Down
19 changes: 4 additions & 15 deletions parser.go
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Original file line number Diff line number Diff line change
Expand Up @@ -211,6 +211,8 @@ func New(options ...func(*Parser)) *Parser {
option(parser)
}

parser.packages.debug = parser.debug

return parser
}

Expand Down Expand Up @@ -276,7 +278,6 @@ func SetDebugger(logger Debugger) func(parser *Parser) {
if logger != nil {
p.debug = logger
}

}
}

Expand Down Expand Up @@ -377,7 +378,7 @@ func (parser *Parser) ParseAPIMultiSearchDir(searchDirs []string, mainAPIFile st
return err
}

err = rangeFiles(parser.packages.files, parser.ParseRouterAPIInfo)
err = parser.packages.RangeFiles(parser.ParseRouterAPIInfo)
if err != nil {
return err
}
Expand Down Expand Up @@ -969,7 +970,6 @@ func (parser *Parser) getTypeSchema(typeName string, file *ast.File, ref bool) (
if err == ErrRecursiveParseStruct && ref {
return parser.getRefTypeSchema(typeSpecDef, schema), nil
}

return nil, err
}
}
Expand Down Expand Up @@ -1520,18 +1520,7 @@ func (parser *Parser) parseFile(packageDir, path string, src interface{}) error
return nil
}

// positions are relative to FileSet
astFile, err := goparser.ParseFile(token.NewFileSet(), path, src, goparser.ParseComments)
if err != nil {
return fmt.Errorf("ParseFile error:%+v", err)
}

err = parser.packages.CollectAstFile(packageDir, path, astFile)
if err != nil {
return err
}

return nil
return parser.packages.ParseFile(packageDir, path, src)
}

func (parser *Parser) checkOperationIDUniqueness() error {
Expand Down
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