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distillertest.go
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/
distillertest.go
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package distiller
import (
"go/ast"
"golang.org/x/tools/go/packages"
"testing"
)
func LoadPackage(t *testing.T, patterns ...string) []*packages.Package {
cfg := &packages.Config{
Mode: packages.NeedName | packages.NeedFiles |
packages.NeedImports | packages.NeedDeps | packages.NeedSyntax |
packages.NeedTypes | packages.NeedTypesInfo,
}
pkgs, err := packages.Load(cfg, patterns...)
if err != nil {
t.Fatal(err)
}
if len(pkgs) == 0 {
t.Fatalf("Expected at least one package reading: %v", patterns)
}
return pkgs
}
func GetFieldsInfo(t *testing.T, patterns []string) []*FieldInfo {
pkgs := LoadPackage(t, patterns...)
var fields []*FieldInfo
for _, pattern := range patterns {
_, err := NewPackageInfo(pattern, "")
if err != nil {
t.Fatalf("Error loading package %s: %v", pattern, err)
}
}
for _, pkg := range pkgs {
for _, astFile := range pkg.Syntax {
for _, decl := range astFile.Decls {
genDecl, ok := decl.(*ast.GenDecl)
if !ok {
continue
}
ast.Inspect(genDecl, func(node ast.Node) bool {
var field *ast.Field
field, ok = node.(*ast.Field)
if !ok {
return true
}
fields = append(fields, NewFieldInfo(field, pkg))
return true
})
}
}
}
return fields
}