tv4: add support boolean schema

jsonform/tv4.js

@@ -535,7 +535,7 @@ ValidatorContext.prototype.reset = function () {
 
 ValidatorContext.prototype.validateAll = function (data, schema, dataPathParts, schemaPathParts, dataPointerPath) {
 	var topLevel;
-	if (!schema) {
+	if (schema === undefined || schema === true) {
 		return null;
 	} else if (schema instanceof ValidationError) {
 		this.errors.push(schema);
@@ -718,6 +718,9 @@ function recursiveCompare(A, B) {
 }
 
 ValidatorContext.prototype.validateBasic = function validateBasic(data, schema, dataPointerPath) {
+	if (schema === false && data !== undefined) {
+		return this.createError(ErrorCodes.BOOLEAN_SCHEMA_FALSE, {}, '', '', null, data, schema);
+	}
 	var error;
 	if (error = this.validateType(data, schema, dataPointerPath)) {
 		return error.prefixWith(null, "type");
@@ -1375,6 +1378,7 @@ var ErrorCodes = {
 	ONE_OF_MISSING: 11,
 	ONE_OF_MULTIPLE: 12,
 	NOT_PASSED: 13,
+	BOOLEAN_SCHEMA_FALSE: 14,
 	// Numeric errors
 	NUMBER_MULTIPLE_OF: 100,
 	NUMBER_MINIMUM: 101,
@@ -1416,6 +1420,7 @@ var ErrorMessagesDefault = {
 	ONE_OF_MISSING: "Data does not match any schemas from \"oneOf\"",
 	ONE_OF_MULTIPLE: "Data is valid against more than one schema from \"oneOf\": indices {index1} and {index2}",
 	NOT_PASSED: "Data matches schema from \"not\"",
+	BOOLEAN_SCHEMA_FALSE: "Schema does not allow any data",
 	// Numeric errors
 	NUMBER_MULTIPLE_OF: "Value {value} is not a multiple of {multipleOf}",
 	NUMBER_MINIMUM: "Value {value} is less than minimum {minimum}",