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"use strict";
module.exports = verifier;
var Enum = require("./enum"),
util = require("./util");
function invalid(field, expected) {
return field.name + ": " + expected + (field.repeated && expected !== "array" ? "[]" : field.map && expected !== "object" ? "{k:"+field.keyType+"}" : "") + " expected";
}
/**
* Generates a partial value verifier.
* @param {Codegen} gen Codegen instance
* @param {Field} field Reflected field
* @param {number} fieldIndex Field index
* @param {string} ref Variable reference
* @returns {Codegen} Codegen instance
* @ignore
*/
function genVerifyValue(gen, field, fieldIndex, ref) {
/* eslint-disable no-unexpected-multiline */
if (field.resolvedType) {
if (field.resolvedType instanceof Enum) { gen
("switch(%s){", ref)
("default:")
("return%j", invalid(field, "enum value"));
for (var keys = Object.keys(field.resolvedType.values), j = 0; j < keys.length; ++j) gen
("case %i:", field.resolvedType.values[keys[j]]);
gen
("break")
("}");
} else {
gen
("{")
("var e=types[%i].verify(%s);", fieldIndex, ref)
("if(e)")
("return%j+e", field.name + ".")
("}");
}
} else {
switch (field.type) {
case "int32":
case "uint32":
case "sint32":
case "fixed32":
case "sfixed32": gen
("if(!util.isInteger(%s))", ref)
("return%j", invalid(field, "integer"));
break;
case "int64":
case "uint64":
case "sint64":
case "fixed64":
case "sfixed64": gen
("if(!util.isInteger(%s)&&!(%s&&util.isInteger(%s.low)&&util.isInteger(%s.high)))", ref, ref, ref, ref)
("return%j", invalid(field, "integer|Long"));
break;
case "float":
case "double": gen
("if(typeof %s!==\"number\")", ref)
("return%j", invalid(field, "number"));
break;
case "bool": gen
("if(typeof %s!==\"boolean\")", ref)
("return%j", invalid(field, "boolean"));
break;
case "string": gen
("if(!util.isString(%s))", ref)
("return%j", invalid(field, "string"));
break;
case "bytes": gen
("if(!(%s&&typeof %s.length===\"number\"||util.isString(%s)))", ref, ref, ref)
("return%j", invalid(field, "buffer"));
break;
}
}
return gen;
/* eslint-enable no-unexpected-multiline */
}
/**
* Generates a partial key verifier.
* @param {Codegen} gen Codegen instance
* @param {Field} field Reflected field
* @param {string} ref Variable reference
* @returns {Codegen} Codegen instance
* @ignore
*/
function genVerifyKey(gen, field, ref) {
/* eslint-disable no-unexpected-multiline */
switch (field.keyType) {
case "int32":
case "uint32":
case "sint32":
case "fixed32":
case "sfixed32": gen
("if(!util.key32Re.test(%s))", ref)
("return%j", invalid(field, "integer key"));
break;
case "int64":
case "uint64":
case "sint64":
case "fixed64":
case "sfixed64": gen
("if(!util.key64Re.test(%s))", ref) // see comment above: x is ok, d is not
("return%j", invalid(field, "integer|Long key"));
break;
case "bool": gen
("if(!util.key2Re.test(%s))", ref)
("return%j", invalid(field, "boolean key"));
break;
}
return gen;
/* eslint-enable no-unexpected-multiline */
}
/**
* Generates a verifier specific to the specified message type.
* @param {Type} mtype Message type
* @returns {Codegen} Codegen instance
*/
function verifier(mtype) {
/* eslint-disable no-unexpected-multiline */
var gen = util.codegen(["m"], mtype.name + "$verify")
("if(typeof m!==\"object\"||m===null)")
("return%j", "object expected");
var oneofs = mtype.oneofsArray,
seenFirstField = {};
if (oneofs.length) gen
("var p={}");
for (var i = 0; i < /* initializes */ mtype.fieldsArray.length; ++i) {
var field = mtype._fieldsArray[i].resolve(),
ref = "m" + util.safeProp(field.name);
if (field.optional) gen
("if(%s!=null&&m.hasOwnProperty(%j)){", ref, field.name); // !== undefined && !== null
// map fields
if (field.map) { gen
("if(!util.isObject(%s))", ref)
("return%j", invalid(field, "object"))
("var k=Object.keys(%s)", ref)
("for(var i=0;i<k.length;++i){");
genVerifyKey(gen, field, "k[i]");
genVerifyValue(gen, field, i, ref + "[k[i]]")
("}");
// repeated fields
} else if (field.repeated) { gen
("if(!Array.isArray(%s))", ref)
("return%j", invalid(field, "array"))
("for(var i=0;i<%s.length;++i){", ref);
genVerifyValue(gen, field, i, ref + "[i]")
("}");
// required or present fields
} else {
if (field.partOf) {
var oneofProp = util.safeProp(field.partOf.name);
if (seenFirstField[field.partOf.name] === 1) gen
("if(p%s===1)", oneofProp)
("return%j", field.partOf.name + ": multiple values");
seenFirstField[field.partOf.name] = 1;
gen
("p%s=1", oneofProp);
}
genVerifyValue(gen, field, i, ref);
}
if (field.optional) gen
("}");
}
return gen
("return null");
/* eslint-enable no-unexpected-multiline */
} |