diff options
Diffstat (limited to 'vendor/github.com/vektah/gqlparser/validator/rules/no_unused_variables.go')
-rw-r--r-- | vendor/github.com/vektah/gqlparser/validator/rules/no_unused_variables.go | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/vendor/github.com/vektah/gqlparser/validator/rules/no_unused_variables.go b/vendor/github.com/vektah/gqlparser/validator/rules/no_unused_variables.go new file mode 100644 index 00000000..28cf7736 --- /dev/null +++ b/vendor/github.com/vektah/gqlparser/validator/rules/no_unused_variables.go @@ -0,0 +1,30 @@ +package validator + +import ( + "github.com/vektah/gqlparser/ast" + . "github.com/vektah/gqlparser/validator" +) + +func init() { + AddRule("NoUnusedVariables", func(observers *Events, addError AddErrFunc) { + observers.OnOperation(func(walker *Walker, operation *ast.OperationDefinition) { + for _, varDef := range operation.VariableDefinitions { + if varDef.Used { + continue + } + + if operation.Name != "" { + addError( + Message(`Variable "$%s" is never used in operation "%s".`, varDef.Variable, operation.Name), + At(varDef.Position), + ) + } else { + addError( + Message(`Variable "$%s" is never used.`, varDef.Variable), + At(varDef.Position), + ) + } + } + }) + }) +} |