feat: references check

... and fixes: parse fields without tags and other logical errors

tests/reference_check_test.go

@@ -0,0 +1,12 @@
+package tests
+
+import (
+	"golang.org/x/tools/go/analysis/analysistest"
+	"gormlint/referencesCheck"
+	"testing"
+)
+
+func TestReferenceCheck(t *testing.T) {
+	t.Parallel()
+	analysistest.Run(t, analysistest.TestData(), referencesCheck.ReferenceAnalyzer, "references_check")
+}

tests/testdata/src/references_check/negative.go

@@ -0,0 +1,24 @@
+package references_check
+
+type WorkArea struct {
+	Id         uint     `gorm:"primaryKey"`
+	Workshop   Workshop `gorm:"foreignKey:WorkshopId;references:Id;"`
+	WorkshopId uint
+}
+
+type Workshop struct {
+	Id        uint `gorm:"primaryKey"`
+	Name      string
+	WorkAreas []WorkArea `gorm:"constraint:OnDelete:CASCADE;"`
+}
+
+type TeamType struct {
+	Code uint   `gorm:"primaryKey"`
+	Name string `gorm:"not null"`
+}
+
+type TeamTask struct {
+	Id         uint `gorm:"primaryKey"`
+	TeamTypeId uint
+	TeamType   TeamType `gorm:"references:Code;"`
+}

tests/testdata/src/references_check/positive.go

@@ -0,0 +1,19 @@
+package references_check
+
+type User struct {
+	Name      string
+	CompanyID string
+	Company   Company `gorm:"references:code"` // want "Related field \"code\" doesn't exist on model \"Company\""
+}
+
+type Company struct {
+	ID   int
+	Code string
+	Name string
+}
+
+type Order struct {
+	Id        uint   `gorm:"primaryKey"`
+	CompanyID string `gorm:"references:Code"` // want "Related model \"string\" doesn't exist"
+	Company   Company
+}