Merge remote-tracking branch 'aosp/upstream'
am: e2f3158478
Change-Id: I922e5c2661b439c6a890a35a20ba7a72f834ffd2
This commit is contained in:
Jaewoong Jung
android-build-merger
commit
676fb278d8
7 changed files with 760 additions and 435 deletions
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@ -119,6 +119,11 @@ bootstrap_go_package {
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pkgPath: "github.com/google/blueprint/bootstrap/bpdoc",
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srcs: [
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"bootstrap/bpdoc/bpdoc.go",
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"bootstrap/bpdoc/properties.go",
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"bootstrap/bpdoc/reader.go",
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],
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testSrcs: [
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"bootstrap/bpdoc/reader_test.go",
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],
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}
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@ -2,92 +2,46 @@ package bpdoc
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import (
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"fmt"
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"go/ast"
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"go/doc"
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"go/parser"
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"go/token"
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"html/template"
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"reflect"
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"sort"
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"strconv"
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"strings"
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"sync"
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"unicode"
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"unicode/utf8"
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"github.com/google/blueprint"
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"github.com/google/blueprint/proptools"
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)
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type Context struct {
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pkgFiles map[string][]string // Map of package name to source files, provided by constructor
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// Package contains the information about a package relevant to generating documentation.
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type Package struct {
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// Name is the name of the package.
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Name string
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mutex sync.Mutex
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pkgs map[string]*doc.Package // Map of package name to parsed Go AST, protected by mutex
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ps map[string]*PropertyStruct // Map of type name to property struct, protected by mutex
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// Path is the full package path of the package as used in the primary builder.
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Path string
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// Text is the contents of the package comment documenting the module types in the package.
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Text string
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// ModuleTypes is a list of ModuleType objects that contain information about each module type that is
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// defined by the package.
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ModuleTypes []*ModuleType
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}
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func NewContext(pkgFiles map[string][]string) *Context {
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return &Context{
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pkgFiles: pkgFiles,
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pkgs: make(map[string]*doc.Package),
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ps: make(map[string]*PropertyStruct),
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}
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}
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// ModuleType contains the information about a module type that is relevant to generating documentation.
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type ModuleType struct {
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// Name is the string that will appear in Blueprints files when defining a new module of
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// this type.
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Name string
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// Return the PropertyStruct associated with a property struct type. The type should be in the
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// format <package path>.<type name>
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func (c *Context) PropertyStruct(pkgPath, name string, defaults reflect.Value) (*PropertyStruct, error) {
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ps := c.getPropertyStruct(pkgPath, name)
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// PkgPath is the full package path of the package that contains the module type factory.
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PkgPath string
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if ps == nil {
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pkg, err := c.pkg(pkgPath)
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if err != nil {
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return nil, err
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}
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// Text is the contents of the comment documenting the module type.
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Text string
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for _, t := range pkg.Types {
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if t.Name == name {
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ps, err = newPropertyStruct(t)
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if err != nil {
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return nil, err
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}
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ps = c.putPropertyStruct(pkgPath, name, ps)
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}
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}
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}
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if ps == nil {
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return nil, fmt.Errorf("package %q type %q not found", pkgPath, name)
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}
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ps = ps.Clone()
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ps.SetDefaults(defaults)
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return ps, nil
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}
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func (c *Context) getPropertyStruct(pkgPath, name string) *PropertyStruct {
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c.mutex.Lock()
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defer c.mutex.Unlock()
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name = pkgPath + "." + name
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return c.ps[name]
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}
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func (c *Context) putPropertyStruct(pkgPath, name string, ps *PropertyStruct) *PropertyStruct {
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c.mutex.Lock()
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defer c.mutex.Unlock()
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name = pkgPath + "." + name
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if c.ps[name] != nil {
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return c.ps[name]
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} else {
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c.ps[name] = ps
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return ps
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}
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// PropertyStructs is a list of PropertyStruct objects that contain information about each
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// property struct that is used by the module type, containing all properties that are valid
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// for the module type.
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PropertyStructs []*PropertyStruct
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}
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type PropertyStruct struct {
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@ -107,338 +61,60 @@ type Property struct {
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Default string
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}
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func (ps *PropertyStruct) Clone() *PropertyStruct {
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ret := *ps
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ret.Properties = append([]Property(nil), ret.Properties...)
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for i, prop := range ret.Properties {
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ret.Properties[i] = prop.Clone()
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}
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func AllPackages(pkgFiles map[string][]string, moduleTypeNameFactories map[string]reflect.Value,
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moduleTypeNamePropertyStructs map[string][]interface{}) ([]*Package, error) {
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// Read basic info from the files to construct a Reader instance.
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r := NewReader(pkgFiles)
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return &ret
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}
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func (p *Property) Clone() Property {
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ret := *p
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ret.Properties = append([]Property(nil), ret.Properties...)
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for i, prop := range ret.Properties {
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ret.Properties[i] = prop.Clone()
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}
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return ret
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}
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func (p *Property) Equal(other Property) bool {
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return p.Name == other.Name && p.Type == other.Type && p.Tag == other.Tag &&
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p.Text == other.Text && p.Default == other.Default &&
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stringArrayEqual(p.OtherNames, other.OtherNames) &&
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htmlArrayEqual(p.OtherTexts, other.OtherTexts) &&
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p.SameSubProperties(other)
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}
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func (ps *PropertyStruct) SetDefaults(defaults reflect.Value) {
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setDefaults(ps.Properties, defaults)
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}
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func setDefaults(properties []Property, defaults reflect.Value) {
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for i := range properties {
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prop := &properties[i]
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fieldName := proptools.FieldNameForProperty(prop.Name)
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f := defaults.FieldByName(fieldName)
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if (f == reflect.Value{}) {
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panic(fmt.Errorf("property %q does not exist in %q", fieldName, defaults.Type()))
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pkgMap := map[string]*Package{}
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var pkgs []*Package
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// Scan through per-module-type property structs map.
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for mtName, propertyStructs := range moduleTypeNamePropertyStructs {
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// Construct ModuleType with the given info.
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mtInfo, err := assembleModuleTypeInfo(r, mtName, moduleTypeNameFactories[mtName], propertyStructs)
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if err != nil {
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return nil, err
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}
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// Some pruning work
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removeEmptyPropertyStructs(mtInfo)
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collapseDuplicatePropertyStructs(mtInfo)
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collapseNestedPropertyStructs(mtInfo)
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combineDuplicateProperties(mtInfo)
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if reflect.DeepEqual(f.Interface(), reflect.Zero(f.Type()).Interface()) {
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continue
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}
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if f.Kind() == reflect.Interface {
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f = f.Elem()
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}
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if f.Kind() == reflect.Ptr {
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if f.IsNil() {
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continue
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// Add the ModuleInfo to the corresponding Package map/slice entries.
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pkg := pkgMap[mtInfo.PkgPath]
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if pkg == nil {
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var err error
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pkg, err = r.Package(mtInfo.PkgPath)
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if err != nil {
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return nil, err
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}
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f = f.Elem()
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}
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if f.Kind() == reflect.Struct {
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setDefaults(prop.Properties, f)
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} else {
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prop.Default = fmt.Sprintf("%v", f.Interface())
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pkgMap[mtInfo.PkgPath] = pkg
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pkgs = append(pkgs, pkg)
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}
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pkg.ModuleTypes = append(pkg.ModuleTypes, mtInfo)
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}
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// Sort ModuleTypes within each package.
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for _, pkg := range pkgs {
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sort.Slice(pkg.ModuleTypes, func(i, j int) bool { return pkg.ModuleTypes[i].Name < pkg.ModuleTypes[j].Name })
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}
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// Sort packages.
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sort.Slice(pkgs, func(i, j int) bool { return pkgs[i].Path < pkgs[j].Path })
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return pkgs, nil
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}
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func stringArrayEqual(a, b []string) bool {
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if len(a) != len(b) {
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return false
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}
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func assembleModuleTypeInfo(r *Reader, name string, factory reflect.Value,
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propertyStructs []interface{}) (*ModuleType, error) {
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for i := range a {
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if a[i] != b[i] {
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return false
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}
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}
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return true
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}
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func htmlArrayEqual(a, b []template.HTML) bool {
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if len(a) != len(b) {
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return false
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}
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for i := range a {
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if a[i] != b[i] {
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return false
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}
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}
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return true
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}
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func (p *Property) SameSubProperties(other Property) bool {
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if len(p.Properties) != len(other.Properties) {
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return false
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}
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for i := range p.Properties {
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if !p.Properties[i].Equal(other.Properties[i]) {
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return false
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}
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}
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return true
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}
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func (ps *PropertyStruct) GetByName(name string) *Property {
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return getByName(name, "", &ps.Properties)
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}
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func getByName(name string, prefix string, props *[]Property) *Property {
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for i := range *props {
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if prefix+(*props)[i].Name == name {
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return &(*props)[i]
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} else if strings.HasPrefix(name, prefix+(*props)[i].Name+".") {
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return getByName(name, prefix+(*props)[i].Name+".", &(*props)[i].Properties)
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}
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}
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return nil
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}
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func (p *Property) Nest(nested *PropertyStruct) {
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//p.Name += "(" + nested.Name + ")"
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//p.Text += "(" + nested.Text + ")"
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p.Properties = append(p.Properties, nested.Properties...)
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}
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func newPropertyStruct(t *doc.Type) (*PropertyStruct, error) {
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typeSpec := t.Decl.Specs[0].(*ast.TypeSpec)
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ps := PropertyStruct{
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Name: t.Name,
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Text: t.Doc,
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}
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structType, ok := typeSpec.Type.(*ast.StructType)
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if !ok {
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return nil, fmt.Errorf("type of %q is not a struct", t.Name)
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}
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var err error
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ps.Properties, err = structProperties(structType)
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mt, err := r.ModuleType(name, factory)
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if err != nil {
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return nil, err
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}
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return &ps, nil
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}
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func structProperties(structType *ast.StructType) (props []Property, err error) {
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for _, f := range structType.Fields.List {
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names := f.Names
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if names == nil {
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// Anonymous fields have no name, use the type as the name
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// TODO: hide the name and make the properties show up in the embedding struct
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if t, ok := f.Type.(*ast.Ident); ok {
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names = append(names, t)
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}
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}
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for _, n := range names {
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var name, typ, tag, text string
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var innerProps []Property
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if n != nil {
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name = proptools.PropertyNameForField(n.Name)
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}
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if f.Doc != nil {
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text = f.Doc.Text()
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}
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if f.Tag != nil {
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tag, err = strconv.Unquote(f.Tag.Value)
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if err != nil {
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return nil, err
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}
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}
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t := f.Type
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if star, ok := t.(*ast.StarExpr); ok {
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t = star.X
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}
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switch a := t.(type) {
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case *ast.ArrayType:
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typ = "list of strings"
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case *ast.InterfaceType:
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typ = "interface"
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case *ast.Ident:
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typ = a.Name
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case *ast.StructType:
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innerProps, err = structProperties(a)
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if err != nil {
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return nil, err
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}
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default:
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typ = fmt.Sprintf("%T", f.Type)
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}
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var html template.HTML
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lines := strings.Split(text, "\n")
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preformatted := false
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for _, line := range lines {
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r, _ := utf8.DecodeRuneInString(line)
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indent := unicode.IsSpace(r)
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if indent && !preformatted {
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html += "<pre>\n"
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} else if !indent && preformatted {
|
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html += "</pre>\n"
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}
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preformatted = indent
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html += template.HTML(template.HTMLEscapeString(line)) + "\n"
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}
|
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if preformatted {
|
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html += "</pre>\n"
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}
|
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|
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props = append(props, Property{
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Name: name,
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Type: typ,
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Tag: reflect.StructTag(tag),
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Text: html,
|
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Properties: innerProps,
|
||||
})
|
||||
}
|
||||
}
|
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|
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return props, nil
|
||||
}
|
||||
|
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func (ps *PropertyStruct) ExcludeByTag(key, value string) {
|
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filterPropsByTag(&ps.Properties, key, value, true)
|
||||
}
|
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|
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func (ps *PropertyStruct) IncludeByTag(key, value string) {
|
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filterPropsByTag(&ps.Properties, key, value, false)
|
||||
}
|
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|
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func filterPropsByTag(props *[]Property, key, value string, exclude bool) {
|
||||
// Create a slice that shares the storage of props but has 0 length. Appending up to
|
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// len(props) times to this slice will overwrite the original slice contents
|
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filtered := (*props)[:0]
|
||||
for _, x := range *props {
|
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tag := x.Tag.Get(key)
|
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for _, entry := range strings.Split(tag, ",") {
|
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if (entry == value) == !exclude {
|
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filtered = append(filtered, x)
|
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}
|
||||
}
|
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}
|
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|
||||
*props = filtered
|
||||
}
|
||||
|
||||
// Package AST generation and storage
|
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func (c *Context) pkg(pkgPath string) (*doc.Package, error) {
|
||||
pkg := c.getPackage(pkgPath)
|
||||
if pkg == nil {
|
||||
if files, ok := c.pkgFiles[pkgPath]; ok {
|
||||
var err error
|
||||
pkgAST, err := NewPackageAST(files)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
pkg = doc.New(pkgAST, pkgPath, doc.AllDecls)
|
||||
pkg = c.putPackage(pkgPath, pkg)
|
||||
} else {
|
||||
return nil, fmt.Errorf("unknown package %q", pkgPath)
|
||||
}
|
||||
}
|
||||
return pkg, nil
|
||||
}
|
||||
|
||||
func (c *Context) getPackage(pkgPath string) *doc.Package {
|
||||
c.mutex.Lock()
|
||||
defer c.mutex.Unlock()
|
||||
|
||||
return c.pkgs[pkgPath]
|
||||
}
|
||||
|
||||
func (c *Context) putPackage(pkgPath string, pkg *doc.Package) *doc.Package {
|
||||
c.mutex.Lock()
|
||||
defer c.mutex.Unlock()
|
||||
|
||||
if c.pkgs[pkgPath] != nil {
|
||||
return c.pkgs[pkgPath]
|
||||
} else {
|
||||
c.pkgs[pkgPath] = pkg
|
||||
return pkg
|
||||
}
|
||||
}
|
||||
|
||||
func NewPackageAST(files []string) (*ast.Package, error) {
|
||||
asts := make(map[string]*ast.File)
|
||||
|
||||
fset := token.NewFileSet()
|
||||
for _, file := range files {
|
||||
ast, err := parser.ParseFile(fset, file, nil, parser.ParseComments)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
asts[file] = ast
|
||||
}
|
||||
|
||||
pkg, _ := ast.NewPackage(fset, asts, nil, nil)
|
||||
return pkg, nil
|
||||
}
|
||||
|
||||
func ModuleTypes(pkgFiles map[string][]string, moduleTypePropertyStructs map[string][]interface{}) ([]*ModuleType, error) {
|
||||
c := NewContext(pkgFiles)
|
||||
|
||||
var moduleTypeList []*ModuleType
|
||||
for moduleType, propertyStructs := range moduleTypePropertyStructs {
|
||||
mt, err := getModuleType(c, moduleType, propertyStructs)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
removeEmptyPropertyStructs(mt)
|
||||
collapseDuplicatePropertyStructs(mt)
|
||||
collapseNestedPropertyStructs(mt)
|
||||
combineDuplicateProperties(mt)
|
||||
moduleTypeList = append(moduleTypeList, mt)
|
||||
}
|
||||
|
||||
sort.Sort(moduleTypeByName(moduleTypeList))
|
||||
|
||||
return moduleTypeList, nil
|
||||
}
|
||||
|
||||
func getModuleType(c *Context, moduleTypeName string,
|
||||
propertyStructs []interface{}) (*ModuleType, error) {
|
||||
mt := &ModuleType{
|
||||
Name: moduleTypeName,
|
||||
//Text: c.ModuleTypeDocs(moduleType),
|
||||
}
|
||||
|
||||
// Reader.ModuleType only fills basic information such as name and package path. Collect more info
|
||||
// from property struct data.
|
||||
for _, s := range propertyStructs {
|
||||
v := reflect.ValueOf(s).Elem()
|
||||
t := v.Type()
|
||||
|
|
@ -447,7 +123,7 @@ func getModuleType(c *Context, moduleTypeName string,
|
|||
if t.PkgPath() == "" {
|
||||
continue
|
||||
}
|
||||
ps, err := c.PropertyStruct(t.PkgPath(), t.Name(), v)
|
||||
ps, err := r.PropertyStruct(t.PkgPath(), t.Name(), v)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
|
@ -460,7 +136,7 @@ func getModuleType(c *Context, moduleTypeName string,
|
|||
if nestedType.PkgPath() == "" {
|
||||
continue
|
||||
}
|
||||
nested, err := c.PropertyStruct(nestedType.PkgPath(), nestedType.Name(), nestedValue)
|
||||
nested, err := r.PropertyStruct(nestedType.PkgPath(), nestedType.Name(), nestedValue)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
|
@ -528,7 +204,6 @@ func nestedPropertyStructs(s reflect.Value) map[string]reflect.Value {
|
|||
field.Name, fieldValue.Kind()))
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
walk(s, "")
|
||||
|
|
@ -633,27 +308,5 @@ propertyLoop:
|
|||
}
|
||||
n = append(n, child)
|
||||
}
|
||||
|
||||
*p = n
|
||||
}
|
||||
|
||||
type moduleTypeByName []*ModuleType
|
||||
|
||||
func (l moduleTypeByName) Len() int { return len(l) }
|
||||
func (l moduleTypeByName) Less(i, j int) bool { return l[i].Name < l[j].Name }
|
||||
func (l moduleTypeByName) Swap(i, j int) { l[i], l[j] = l[j], l[i] }
|
||||
|
||||
// ModuleType contains the info about a module type that is relevant to generating documentation.
|
||||
type ModuleType struct {
|
||||
// Name is the string that will appear in Blueprints files when defining a new module of
|
||||
// this type.
|
||||
Name string
|
||||
|
||||
// Text is the contents of the comment documenting the module type
|
||||
Text string
|
||||
|
||||
// PropertyStructs is a list of PropertyStruct objects that contain information about each
|
||||
// property struct that is used by the module type, containing all properties that are valid
|
||||
// for the module type.
|
||||
PropertyStructs []*PropertyStruct
|
||||
}
|
||||
|
|
|
|||
281
bootstrap/bpdoc/properties.go
Normal file
281
bootstrap/bpdoc/properties.go
Normal file
|
|
@ -0,0 +1,281 @@
|
|||
// Copyright 2019 Google Inc. 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 bpdoc
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"go/ast"
|
||||
"go/doc"
|
||||
"html/template"
|
||||
"reflect"
|
||||
"strconv"
|
||||
"strings"
|
||||
"unicode"
|
||||
"unicode/utf8"
|
||||
|
||||
"github.com/google/blueprint/proptools"
|
||||
)
|
||||
|
||||
//
|
||||
// Utility functions for PropertyStruct and Property
|
||||
//
|
||||
|
||||
func (ps *PropertyStruct) Clone() *PropertyStruct {
|
||||
ret := *ps
|
||||
ret.Properties = append([]Property(nil), ret.Properties...)
|
||||
for i, prop := range ret.Properties {
|
||||
ret.Properties[i] = prop.Clone()
|
||||
}
|
||||
|
||||
return &ret
|
||||
}
|
||||
|
||||
func (p *Property) Clone() Property {
|
||||
ret := *p
|
||||
ret.Properties = append([]Property(nil), ret.Properties...)
|
||||
for i, prop := range ret.Properties {
|
||||
ret.Properties[i] = prop.Clone()
|
||||
}
|
||||
|
||||
return ret
|
||||
}
|
||||
|
||||
func (p *Property) Equal(other Property) bool {
|
||||
return p.Name == other.Name && p.Type == other.Type && p.Tag == other.Tag &&
|
||||
p.Text == other.Text && p.Default == other.Default &&
|
||||
stringArrayEqual(p.OtherNames, other.OtherNames) &&
|
||||
htmlArrayEqual(p.OtherTexts, other.OtherTexts) &&
|
||||
p.SameSubProperties(other)
|
||||
}
|
||||
|
||||
func (ps *PropertyStruct) SetDefaults(defaults reflect.Value) {
|
||||
setDefaults(ps.Properties, defaults)
|
||||
}
|
||||
|
||||
func setDefaults(properties []Property, defaults reflect.Value) {
|
||||
for i := range properties {
|
||||
prop := &properties[i]
|
||||
fieldName := proptools.FieldNameForProperty(prop.Name)
|
||||
f := defaults.FieldByName(fieldName)
|
||||
if (f == reflect.Value{}) {
|
||||
panic(fmt.Errorf("property %q does not exist in %q", fieldName, defaults.Type()))
|
||||
}
|
||||
|
||||
if reflect.DeepEqual(f.Interface(), reflect.Zero(f.Type()).Interface()) {
|
||||
continue
|
||||
}
|
||||
|
||||
if f.Kind() == reflect.Interface {
|
||||
f = f.Elem()
|
||||
}
|
||||
|
||||
if f.Kind() == reflect.Ptr {
|
||||
if f.IsNil() {
|
||||
continue
|
||||
}
|
||||
f = f.Elem()
|
||||
}
|
||||
|
||||
if f.Kind() == reflect.Struct {
|
||||
setDefaults(prop.Properties, f)
|
||||
} else {
|
||||
prop.Default = fmt.Sprintf("%v", f.Interface())
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func stringArrayEqual(a, b []string) bool {
|
||||
if len(a) != len(b) {
|
||||
return false
|
||||
}
|
||||
|
||||
for i := range a {
|
||||
if a[i] != b[i] {
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
return true
|
||||
}
|
||||
|
||||
func htmlArrayEqual(a, b []template.HTML) bool {
|
||||
if len(a) != len(b) {
|
||||
return false
|
||||
}
|
||||
|
||||
for i := range a {
|
||||
if a[i] != b[i] {
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
return true
|
||||
}
|
||||
|
||||
func (p *Property) SameSubProperties(other Property) bool {
|
||||
if len(p.Properties) != len(other.Properties) {
|
||||
return false
|
||||
}
|
||||
|
||||
for i := range p.Properties {
|
||||
if !p.Properties[i].Equal(other.Properties[i]) {
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
return true
|
||||
}
|
||||
|
||||
func (ps *PropertyStruct) GetByName(name string) *Property {
|
||||
return getByName(name, "", &ps.Properties)
|
||||
}
|
||||
|
||||
func getByName(name string, prefix string, props *[]Property) *Property {
|
||||
for i := range *props {
|
||||
if prefix+(*props)[i].Name == name {
|
||||
return &(*props)[i]
|
||||
} else if strings.HasPrefix(name, prefix+(*props)[i].Name+".") {
|
||||
return getByName(name, prefix+(*props)[i].Name+".", &(*props)[i].Properties)
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (p *Property) Nest(nested *PropertyStruct) {
|
||||
p.Properties = append(p.Properties, nested.Properties...)
|
||||
}
|
||||
|
||||
func newPropertyStruct(t *doc.Type) (*PropertyStruct, error) {
|
||||
typeSpec := t.Decl.Specs[0].(*ast.TypeSpec)
|
||||
ps := PropertyStruct{
|
||||
Name: t.Name,
|
||||
Text: t.Doc,
|
||||
}
|
||||
|
||||
structType, ok := typeSpec.Type.(*ast.StructType)
|
||||
if !ok {
|
||||
return nil, fmt.Errorf("type of %q is not a struct", t.Name)
|
||||
}
|
||||
|
||||
var err error
|
||||
ps.Properties, err = structProperties(structType)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return &ps, nil
|
||||
}
|
||||
|
||||
func structProperties(structType *ast.StructType) (props []Property, err error) {
|
||||
for _, f := range structType.Fields.List {
|
||||
names := f.Names
|
||||
if names == nil {
|
||||
// Anonymous fields have no name, use the type as the name
|
||||
// TODO: hide the name and make the properties show up in the embedding struct
|
||||
if t, ok := f.Type.(*ast.Ident); ok {
|
||||
names = append(names, t)
|
||||
}
|
||||
}
|
||||
for _, n := range names {
|
||||
var name, typ, tag, text string
|
||||
var innerProps []Property
|
||||
if n != nil {
|
||||
name = proptools.PropertyNameForField(n.Name)
|
||||
}
|
||||
if f.Doc != nil {
|
||||
text = f.Doc.Text()
|
||||
}
|
||||
if f.Tag != nil {
|
||||
tag, err = strconv.Unquote(f.Tag.Value)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
|
||||
t := f.Type
|
||||
if star, ok := t.(*ast.StarExpr); ok {
|
||||
t = star.X
|
||||
}
|
||||
switch a := t.(type) {
|
||||
case *ast.ArrayType:
|
||||
typ = "list of strings"
|
||||
case *ast.InterfaceType:
|
||||
typ = "interface"
|
||||
case *ast.Ident:
|
||||
typ = a.Name
|
||||
case *ast.StructType:
|
||||
innerProps, err = structProperties(a)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
default:
|
||||
typ = fmt.Sprintf("%T", f.Type)
|
||||
}
|
||||
|
||||
var html template.HTML
|
||||
|
||||
lines := strings.Split(text, "\n")
|
||||
preformatted := false
|
||||
for _, line := range lines {
|
||||
r, _ := utf8.DecodeRuneInString(line)
|
||||
indent := unicode.IsSpace(r)
|
||||
if indent && !preformatted {
|
||||
html += "<pre>\n"
|
||||
} else if !indent && preformatted {
|
||||
html += "</pre>\n"
|
||||
}
|
||||
preformatted = indent
|
||||
html += template.HTML(template.HTMLEscapeString(line)) + "\n"
|
||||
}
|
||||
if preformatted {
|
||||
html += "</pre>\n"
|
||||
}
|
||||
|
||||
props = append(props, Property{
|
||||
Name: name,
|
||||
Type: typ,
|
||||
Tag: reflect.StructTag(tag),
|
||||
Text: html,
|
||||
Properties: innerProps,
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
return props, nil
|
||||
}
|
||||
|
||||
func (ps *PropertyStruct) ExcludeByTag(key, value string) {
|
||||
filterPropsByTag(&ps.Properties, key, value, true)
|
||||
}
|
||||
|
||||
func (ps *PropertyStruct) IncludeByTag(key, value string) {
|
||||
filterPropsByTag(&ps.Properties, key, value, false)
|
||||
}
|
||||
|
||||
func filterPropsByTag(props *[]Property, key, value string, exclude bool) {
|
||||
// Create a slice that shares the storage of props but has 0 length. Appending up to
|
||||
// len(props) times to this slice will overwrite the original slice contents
|
||||
filtered := (*props)[:0]
|
||||
for _, x := range *props {
|
||||
tag := x.Tag.Get(key)
|
||||
for _, entry := range strings.Split(tag, ",") {
|
||||
if (entry == value) == !exclude {
|
||||
filtered = append(filtered, x)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
*props = filtered
|
||||
}
|
||||
227
bootstrap/bpdoc/reader.go
Normal file
227
bootstrap/bpdoc/reader.go
Normal file
|
|
@ -0,0 +1,227 @@
|
|||
// Copyright 2019 Google Inc. 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 bpdoc
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"go/ast"
|
||||
"go/doc"
|
||||
"go/parser"
|
||||
"go/token"
|
||||
"reflect"
|
||||
"regexp"
|
||||
"runtime"
|
||||
"strings"
|
||||
"sync"
|
||||
)
|
||||
|
||||
// Handles parsing and low-level processing of Blueprint module source files. Note that most getter
|
||||
// functions associated with Reader only fill basic information that can be simply extracted from
|
||||
// AST parsing results. More sophisticated processing is performed in bpdoc.go
|
||||
type Reader struct {
|
||||
pkgFiles map[string][]string // Map of package name to source files, provided by constructor
|
||||
|
||||
mutex sync.Mutex
|
||||
goPkgs map[string]*doc.Package // Map of package name to parsed Go AST, protected by mutex
|
||||
ps map[string]*PropertyStruct // Map of module type name to property struct, protected by mutex
|
||||
}
|
||||
|
||||
func NewReader(pkgFiles map[string][]string) *Reader {
|
||||
return &Reader{
|
||||
pkgFiles: pkgFiles,
|
||||
goPkgs: make(map[string]*doc.Package),
|
||||
ps: make(map[string]*PropertyStruct),
|
||||
}
|
||||
}
|
||||
|
||||
func (r *Reader) Package(path string) (*Package, error) {
|
||||
goPkg, err := r.goPkg(path)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return &Package{
|
||||
Name: goPkg.Name,
|
||||
Path: path,
|
||||
Text: goPkg.Doc,
|
||||
}, nil
|
||||
}
|
||||
|
||||
func (r *Reader) ModuleType(name string, factory reflect.Value) (*ModuleType, error) {
|
||||
f := runtime.FuncForPC(factory.Pointer())
|
||||
|
||||
pkgPath, err := funcNameToPkgPath(f.Name())
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
factoryName := strings.TrimPrefix(f.Name(), pkgPath+".")
|
||||
|
||||
text, err := r.getModuleTypeDoc(pkgPath, factoryName)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return &ModuleType{
|
||||
Name: name,
|
||||
PkgPath: pkgPath,
|
||||
Text: text,
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Return the PropertyStruct associated with a property struct type. The type should be in the
|
||||
// format <package path>.<type name>
|
||||
func (r *Reader) PropertyStruct(pkgPath, name string, defaults reflect.Value) (*PropertyStruct, error) {
|
||||
ps := r.getPropertyStruct(pkgPath, name)
|
||||
|
||||
if ps == nil {
|
||||
pkg, err := r.goPkg(pkgPath)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
for _, t := range pkg.Types {
|
||||
if t.Name == name {
|
||||
ps, err = newPropertyStruct(t)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
ps = r.putPropertyStruct(pkgPath, name, ps)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if ps == nil {
|
||||
return nil, fmt.Errorf("package %q type %q not found", pkgPath, name)
|
||||
}
|
||||
|
||||
ps = ps.Clone()
|
||||
ps.SetDefaults(defaults)
|
||||
|
||||
return ps, nil
|
||||
}
|
||||
|
||||
func (r *Reader) getModuleTypeDoc(pkgPath, factoryFuncName string) (string, error) {
|
||||
goPkg, err := r.goPkg(pkgPath)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
for _, fn := range goPkg.Funcs {
|
||||
if fn.Name == factoryFuncName {
|
||||
return fn.Doc, nil
|
||||
}
|
||||
}
|
||||
|
||||
// The doc package may associate the method with the type it returns, so iterate through those too
|
||||
for _, typ := range goPkg.Types {
|
||||
for _, fn := range typ.Funcs {
|
||||
if fn.Name == factoryFuncName {
|
||||
return fn.Doc, nil
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return "", nil
|
||||
}
|
||||
|
||||
func (r *Reader) getPropertyStruct(pkgPath, name string) *PropertyStruct {
|
||||
r.mutex.Lock()
|
||||
defer r.mutex.Unlock()
|
||||
|
||||
name = pkgPath + "." + name
|
||||
|
||||
return r.ps[name]
|
||||
}
|
||||
|
||||
func (r *Reader) putPropertyStruct(pkgPath, name string, ps *PropertyStruct) *PropertyStruct {
|
||||
r.mutex.Lock()
|
||||
defer r.mutex.Unlock()
|
||||
|
||||
name = pkgPath + "." + name
|
||||
|
||||
if r.ps[name] != nil {
|
||||
return r.ps[name]
|
||||
} else {
|
||||
r.ps[name] = ps
|
||||
return ps
|
||||
}
|
||||
}
|
||||
|
||||
// Package AST generation and storage
|
||||
func (r *Reader) goPkg(pkgPath string) (*doc.Package, error) {
|
||||
pkg := r.getGoPkg(pkgPath)
|
||||
if pkg == nil {
|
||||
if files, ok := r.pkgFiles[pkgPath]; ok {
|
||||
var err error
|
||||
pkgAST, err := packageAST(files)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
pkg = doc.New(pkgAST, pkgPath, doc.AllDecls)
|
||||
pkg = r.putGoPkg(pkgPath, pkg)
|
||||
} else {
|
||||
return nil, fmt.Errorf("unknown package %q", pkgPath)
|
||||
}
|
||||
}
|
||||
return pkg, nil
|
||||
}
|
||||
|
||||
func (r *Reader) getGoPkg(pkgPath string) *doc.Package {
|
||||
r.mutex.Lock()
|
||||
defer r.mutex.Unlock()
|
||||
|
||||
return r.goPkgs[pkgPath]
|
||||
}
|
||||
|
||||
func (r *Reader) putGoPkg(pkgPath string, pkg *doc.Package) *doc.Package {
|
||||
r.mutex.Lock()
|
||||
defer r.mutex.Unlock()
|
||||
|
||||
if r.goPkgs[pkgPath] != nil {
|
||||
return r.goPkgs[pkgPath]
|
||||
} else {
|
||||
r.goPkgs[pkgPath] = pkg
|
||||
return pkg
|
||||
}
|
||||
}
|
||||
|
||||
// A regex to find a package path within a function name. It finds the shortest string that is
|
||||
// followed by '.' and doesn't have any '/'s left.
|
||||
var pkgPathRe = regexp.MustCompile("^(.*?)\\.[^/]+$")
|
||||
|
||||
func funcNameToPkgPath(f string) (string, error) {
|
||||
s := pkgPathRe.FindStringSubmatch(f)
|
||||
if len(s) < 2 {
|
||||
return "", fmt.Errorf("failed to extract package path from %q", f)
|
||||
}
|
||||
return s[1], nil
|
||||
}
|
||||
|
||||
func packageAST(files []string) (*ast.Package, error) {
|
||||
asts := make(map[string]*ast.File)
|
||||
|
||||
fset := token.NewFileSet()
|
||||
for _, file := range files {
|
||||
ast, err := parser.ParseFile(fset, file, nil, parser.ParseComments)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
asts[file] = ast
|
||||
}
|
||||
|
||||
pkg, _ := ast.NewPackage(fset, asts, nil, nil)
|
||||
return pkg, nil
|
||||
}
|
||||
136
bootstrap/bpdoc/reader_test.go
Normal file
136
bootstrap/bpdoc/reader_test.go
Normal file
|
|
@ -0,0 +1,136 @@
|
|||
// Copyright 2019 Google Inc. 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.
|
||||
|
||||
// bpdoc docs.
|
||||
package bpdoc
|
||||
|
||||
import (
|
||||
"reflect"
|
||||
"runtime"
|
||||
"testing"
|
||||
|
||||
"github.com/google/blueprint"
|
||||
)
|
||||
|
||||
// foo docs.
|
||||
func fooFactory() (blueprint.Module, []interface{}) {
|
||||
return nil, []interface{}{&props{}}
|
||||
}
|
||||
|
||||
// props docs.
|
||||
type props struct {
|
||||
// A docs.
|
||||
A string
|
||||
}
|
||||
|
||||
var pkgPath string
|
||||
var pkgFiles map[string][]string
|
||||
|
||||
func init() {
|
||||
pc, filename, _, _ := runtime.Caller(0)
|
||||
fn := runtime.FuncForPC(pc)
|
||||
|
||||
var err error
|
||||
pkgPath, err = funcNameToPkgPath(fn.Name())
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
pkgFiles = map[string][]string{
|
||||
pkgPath: {filename},
|
||||
}
|
||||
}
|
||||
|
||||
func TestModuleTypeDocs(t *testing.T) {
|
||||
r := NewReader(pkgFiles)
|
||||
mt, err := r.ModuleType("foo_module", reflect.ValueOf(fooFactory))
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
if mt.Text != "foo docs.\n" {
|
||||
t.Errorf("unexpected docs %q", mt.Text)
|
||||
}
|
||||
|
||||
if mt.PkgPath != pkgPath {
|
||||
t.Errorf("expected pkgpath %q, got %q", pkgPath, mt.PkgPath)
|
||||
}
|
||||
}
|
||||
|
||||
func TestPropertyStruct(t *testing.T) {
|
||||
r := NewReader(pkgFiles)
|
||||
ps, err := r.PropertyStruct(pkgPath, "props", reflect.ValueOf(props{A: "B"}))
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
if ps.Text != "props docs.\n" {
|
||||
t.Errorf("unexpected docs %q", ps.Text)
|
||||
}
|
||||
if len(ps.Properties) != 1 {
|
||||
t.Fatalf("want 1 property, got %d", len(ps.Properties))
|
||||
}
|
||||
|
||||
if ps.Properties[0].Name != "a" || ps.Properties[0].Text != "A docs.\n\n" || ps.Properties[0].Default != "B" {
|
||||
t.Errorf("unexpected property docs %q %q %q",
|
||||
ps.Properties[0].Name, ps.Properties[0].Text, ps.Properties[0].Default)
|
||||
}
|
||||
}
|
||||
|
||||
func TestPackage(t *testing.T) {
|
||||
r := NewReader(pkgFiles)
|
||||
pkg, err := r.Package(pkgPath)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
if pkg.Text != "bpdoc docs.\n" {
|
||||
t.Errorf("unexpected docs %q", pkg.Text)
|
||||
}
|
||||
}
|
||||
|
||||
func TestFuncToPkgPath(t *testing.T) {
|
||||
tests := []struct {
|
||||
f string
|
||||
want string
|
||||
}{
|
||||
{
|
||||
f: "github.com/google/blueprint/bootstrap.Main",
|
||||
want: "github.com/google/blueprint/bootstrap",
|
||||
},
|
||||
{
|
||||
f: "android/soong/android.GenruleFactory",
|
||||
want: "android/soong/android",
|
||||
},
|
||||
{
|
||||
f: "android/soong/android.ModuleFactoryAdapter.func1",
|
||||
want: "android/soong/android",
|
||||
},
|
||||
{
|
||||
f: "main.Main",
|
||||
want: "main",
|
||||
},
|
||||
}
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.f, func(t *testing.T) {
|
||||
got, err := funcNameToPkgPath(tt.f)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if got != tt.want {
|
||||
t.Errorf("funcNameToPkgPath(%v) = %v, want %v", tt.f, got, tt.want)
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
|
@ -6,6 +6,7 @@ import (
|
|||
"html/template"
|
||||
"io/ioutil"
|
||||
"path/filepath"
|
||||
"reflect"
|
||||
|
||||
"github.com/google/blueprint"
|
||||
"github.com/google/blueprint/bootstrap/bpdoc"
|
||||
|
|
@ -14,7 +15,7 @@ import (
|
|||
|
||||
// ModuleTypeDocs returns a list of bpdoc.ModuleType objects that contain information relevant
|
||||
// to generating documentation for module types supported by the primary builder.
|
||||
func ModuleTypeDocs(ctx *blueprint.Context) ([]*bpdoc.ModuleType, error) {
|
||||
func ModuleTypeDocs(ctx *blueprint.Context, factories map[string]reflect.Value) ([]*bpdoc.Package, error) {
|
||||
// Find the module that's marked as the "primary builder", which means it's
|
||||
// creating the binary that we'll use to generate the non-bootstrap
|
||||
// build.ninja file.
|
||||
|
|
@ -60,11 +61,22 @@ func ModuleTypeDocs(ctx *blueprint.Context) ([]*bpdoc.ModuleType, error) {
|
|||
}
|
||||
})
|
||||
|
||||
return bpdoc.ModuleTypes(pkgFiles, ctx.ModuleTypePropertyStructs())
|
||||
mergedFactories := make(map[string]reflect.Value)
|
||||
for moduleType, factory := range factories {
|
||||
mergedFactories[moduleType] = factory
|
||||
}
|
||||
|
||||
for moduleType, factory := range ctx.ModuleTypeFactories() {
|
||||
if _, exists := mergedFactories[moduleType]; !exists {
|
||||
mergedFactories[moduleType] = reflect.ValueOf(factory)
|
||||
}
|
||||
}
|
||||
|
||||
return bpdoc.AllPackages(pkgFiles, mergedFactories, ctx.ModuleTypePropertyStructs())
|
||||
}
|
||||
|
||||
func writeDocs(ctx *blueprint.Context, filename string) error {
|
||||
moduleTypeList, err := ModuleTypeDocs(ctx)
|
||||
moduleTypeList, err := ModuleTypeDocs(ctx, nil)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
|
@ -108,25 +120,28 @@ const (
|
|||
<h1>Build Docs</h1>
|
||||
<div class="panel-group" id="accordion" role="tablist" aria-multiselectable="true">
|
||||
{{range .}}
|
||||
{{ $collapseIndex := unique }}
|
||||
<div class="panel panel-default">
|
||||
<div class="panel-heading" role="tab" id="heading{{$collapseIndex}}">
|
||||
<h2 class="panel-title">
|
||||
<a class="collapsed" role="button" data-toggle="collapse" data-parent="#accordion" href="#collapse{{$collapseIndex}}" aria-expanded="false" aria-controls="collapse{{$collapseIndex}}">
|
||||
{{.Name}}
|
||||
</a>
|
||||
</h2>
|
||||
<p>{{.Text}}</p>
|
||||
{{range .ModuleTypes}}
|
||||
{{ $collapseIndex := unique }}
|
||||
<div class="panel panel-default">
|
||||
<div class="panel-heading" role="tab" id="heading{{$collapseIndex}}">
|
||||
<h2 class="panel-title">
|
||||
<a class="collapsed" role="button" data-toggle="collapse" data-parent="#accordion" href="#collapse{{$collapseIndex}}" aria-expanded="false" aria-controls="collapse{{$collapseIndex}}">
|
||||
{{.Name}}
|
||||
</a>
|
||||
</h2>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div id="collapse{{$collapseIndex}}" class="panel-collapse collapse" role="tabpanel" aria-labelledby="heading{{$collapseIndex}}">
|
||||
<div class="panel-body">
|
||||
<p>{{.Text}}</p>
|
||||
{{range .PropertyStructs}}
|
||||
<div id="collapse{{$collapseIndex}}" class="panel-collapse collapse" role="tabpanel" aria-labelledby="heading{{$collapseIndex}}">
|
||||
<div class="panel-body">
|
||||
<p>{{.Text}}</p>
|
||||
{{template "properties" .Properties}}
|
||||
{{end}}
|
||||
{{range .PropertyStructs}}
|
||||
<p>{{.Text}}</p>
|
||||
{{template "properties" .Properties}}
|
||||
{{end}}
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
{{end}}
|
||||
{{end}}
|
||||
</div>
|
||||
</body>
|
||||
|
|
|
|||
|
|
@ -2829,6 +2829,14 @@ func (c *Context) ModuleTypePropertyStructs() map[string][]interface{} {
|
|||
return ret
|
||||
}
|
||||
|
||||
func (c *Context) ModuleTypeFactories() map[string]ModuleFactory {
|
||||
ret := make(map[string]ModuleFactory)
|
||||
for k, v := range c.moduleFactories {
|
||||
ret[k] = v
|
||||
}
|
||||
return ret
|
||||
}
|
||||
|
||||
func (c *Context) ModuleName(logicModule Module) string {
|
||||
module := c.moduleInfo[logicModule]
|
||||
return module.Name()
|
||||
|
|
|
|||
Loading…
Reference in a new issue