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Refactored cli targets; added 'defaults' option to Prototype#asJSON, …
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…see #521
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@dcodeIO
dcodeIO committed Dec 7, 2016
1 parent 046fc9f commit 090d8ea
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Showing 7 changed files with 367 additions and 339 deletions.
2 changes: 1 addition & 1 deletion cli/targets/json-module.js
View file
Original file line number Diff line number Diff line change
Expand Up @@ -14,5 +14,5 @@ function json_modulee(root, options, callback) {
else
options.wrap = path.join(__dirname, "json-module.tpl");
var wrap = fs.readFileSync(options.wrap).toString("utf8");
callback(null, wrap.replace(/%OUTPUT%/, JSON.stringify(root, null, 2)));
callback(null, wrap.replace(/%OUTPUT%/, JSON.stringify(root, null, 2).replace(/^(?!$)/mg, " ").trim()));
}
8 changes: 3 additions & 5 deletions cli/targets/json-module.tpl
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Original file line number Diff line number Diff line change
Expand Up @@ -9,8 +9,6 @@
/* Global */ else
global.root = factory(global.protobuf);
})(this, function(protobuf) { return protobuf.Root.fromJSON(
%OUTPUT%
);});
})(this, function(protobuf) {
return protobuf.Root.fromJSON(%OUTPUT%);
});
3 changes: 1 addition & 2 deletions cli/targets/proto.js
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Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,6 @@ var first = false;
var syntax = 3;

function proto_target(root, options, callback) {

if (options) {
switch (options.syntax) {
case undefined:
Expand All @@ -46,8 +45,8 @@ function proto_target(root, options, callback) {
callback(err);
} finally {
out = [];
syntax = 3;
}

}

function push(line) {
Expand Down
319 changes: 8 additions & 311 deletions cli/targets/static-module.js
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Original file line number Diff line number Diff line change
@@ -1,7 +1,6 @@
"use strict";
module.exports = static_target;
module.exports = static_module_target;

// - Static code does not have any reflection or JSON features.
// - The default wrapper supports AMD, CommonJS and the global scope (as window.root), in this order.
// - You can specify a custom wrapper with the --wrap argument.
// - CommonJS modules depend on the minimal static runtime for reduced package size with browserify.
Expand All @@ -12,323 +11,21 @@ var path = require("path"),

var protobuf = require("../..");

var Type = protobuf.Type,
Service = protobuf.Service,
Enum = protobuf.Enum,
Namespace = protobuf.Namespace,
encoder = protobuf.encoder,
decoder = protobuf.decoder,
verifier = protobuf.verifier,
util = protobuf.util;
static_module_target.description = "Static code without reflection as a module (AMD, CommonJS, global)";

var out = [];
var indent = 0;

static_target.description = "Static code without reflection as a module (AMD, CommonJS, global)";

function static_target(root, options, callback) {
function static_module_target(root, options, callback) {
if (options.wrap)
options.wrap = path.resolve(process.cwd(), options.wrap);
else
options.wrap = path.join(__dirname, "static-module.tpl");
try {
var wrap = fs.readFileSync(options.wrap).toString("utf8");
++indent;
buildNamespace(null, root);
--indent;
callback(null, wrap.replace(/\r?\n%OUTPUT%/, out.join('\n')));
require("./static")(root, options, function(err, output) {
if (err)
return callback(err);
callback(null, wrap.replace(/%OUTPUT%/, output.replace(/^(?!$)/mg, " ")));
});
} catch (err) {
callback(err);
} finally {
out = [];
indent = 0;
}
}

function push(line) {
if (line === "")
return out.push("");
var ind = "";
for (var i = 0; i < indent; ++i)
ind += " ";
out.push(ind + line);
}

function pushComment(lines) {
push("/**");
lines.forEach(function(line, i) {
push(" * " + line);
});
push(" */");
}

function name(name) {
if (!name)
return "$root";
return name;
}

function buildNamespace(ref, ns) {
if (!ns)
return;
if (ns.name !== "") {
push("");
push("/** @alias " + ns.fullName.substring(1) + " */");
push(name(ref) + "." + name(ns.name) + " = (function() {");
++indent;
}

if (ns instanceof Type) {
buildType(undefined, ns);
} else if (ns instanceof Service)
buildService(undefined, ns);
else if (ns.name !== "") {
push("");
push("/** @alias " + (ns.name && ns.fullName.substring(1) || "exports") + " */");
push("var " + name(ns.name) + " = {};");
}

ns.nestedArray.forEach(function(nested) {
if (nested instanceof Enum)
buildEnum(ns.name, nested);
else if (nested instanceof Namespace)
buildNamespace(ns.name, nested);
});
if (ns.name !== "") {
push("");
push("return " + name(ns.name) + ";");
--indent;
push("})();");
}
}

function buildFunction(type, functionName, gen, scope) {
var lines = gen.str(functionName)
.replace("(this.getCtor())", " $root" + type.fullName)
.split(/\n/g);
push(name(type.name) + "." + functionName + " = (function() {");
++indent;
push("/* eslint-disable */");
Object.keys(scope).forEach(function(key) {
push("var " + key + " = " + scope[key] + ";");
});
push("var types; $lazyTypes.push(types = [" + type.fieldsArray.map(function(field) {
return field.resolve().resolvedType
? JSON.stringify(field.resolvedType.fullName.substring(1))
: "null";
}).join(',') + "]);");
push("return " + lines[0]);
lines.slice(1).forEach(function(line) {
if (line === '\t"use strict"')
return;
var prev = indent;
var i = 0;
while (line.charAt(i++) === "\t")
++indent;
push(line.trim());
indent = prev;
});
push("/* eslint-enable */");
--indent;
push("})();");
}

function buildType(ref, type) {
var fullName = type.fullName.substring(1);

push("");
pushComment([
"Constructs a new " + type.name + ".",
"@exports " + fullName,
"@constructor",
"@param {Object} [properties] Properties to set"
]);
push("function " + name(type.name) + "(properties) {");
++indent;
push("if (properties) {");
++indent;
push("var keys = Object.keys(properties);");
push("for (var i = 0; i < keys.length; ++i)");
++indent;
push("this[keys[i]] = properties[keys[i]];");
--indent;
--indent;
push("}");
--indent;
push("}");
push("");
type.fieldsArray.forEach(function(field) {
field.resolve();
if (typeof field.defaultValue === 'object' && field.defaultValue)
return;
push(name(type.name) + ".prototype." + name(field.name) + " = " +JSON.stringify(field.defaultValue) + ";");
});

// #encode
push("");
pushComment([
"Encodes the specified " + type.name + ".",
"@function",
"@param {" + fullName + "|Object} message " + type.name + " or plain object to encode",
"@param {Writer} [writer] Writer to encode to",
"@returns {Writer} Writer"
]);
buildFunction(type, "encode", encoder.generate(type), {
Writer : "$runtime.Writer",
util : "$runtime.util"
});

// #encodeDelimited
push("");
pushComment([
"Encodes the specified " + type.name + ", length delimited.",
"@param {" + fullName + "|Object} message " + type.name + " or plain object to encode",
"@param {Writer} [writer] Writer to encode to",
"@returns {Writer} Writer"
]);
push(name(type.name) + ".encodeDelimited = function encodeDelimited(message, writer) {");
++indent;
push("return this.encode(message, writer).ldelim();");
--indent;
push("};");

// #decode
push("");
pushComment([
"Decodes a " + type.name + " from the specified reader or buffer.",
"@function",
"@param {Reader|Uint8Array} readerOrBuffer Reader or buffer to decode from",
"@param {number} [length] Message length if known beforehand",
"@returns {" + fullName + "} " + type.name
]);
buildFunction(type, "decode", decoder.generate(type), {
Reader : "$runtime.Reader",
util : "$runtime.util"
});

// #decodeDelimited
push("");
pushComment([
"Decodes a " + type.name + " from the specified reader or buffer, length delimited.",
"@param {Reader|Uint8Array} readerOrBuffer Reader or buffer to decode from",
"@returns {" + fullName + "} " + type.name
]);
push(name(type.name) + ".decodeDelimited = function decodeDelimited(readerOrBuffer) {");
++indent;
push("readerOrBuffer = readerOrBuffer instanceof Reader ? readerOrBuffer : Reader(readerOrBuffer);");
push("return this.decode(readerOrBuffer, readerOrBuffer.uint32());");
--indent;
push("};");

// #verify
push("");
pushComment([
"Verifies a " + type.name + ".",
"@param {" + fullName + "|Object} message " + type.name + " or plain object to verify",
"@returns {?string} `null` if valid, otherwise the reason why it is not"
]);
buildFunction(type, "verify", verifier.generate(type), {});
}

function buildService(ref, service) {
var fullName = service.fullName.substring(1);

push("");
pushComment([
"Constructs a new " + service.name + ".",
"@exports " + fullName,
"@constructor",
"@param {function(function, Uint8Array, function)} rpc RPC implementation",
"@param {boolean} [requestDelimited=false] Whether requests are length-delimited",
"@param {boolean} [responseDelimited=false] Whether responses are length-delimited"
]);
push("function " + name(service.name) + "(rpc, requestDelimited, responseDelimited) {");
++indent;
push("");
pushComment([
"RPC implementation.",
"@type {function(function, Uint8Array, function)}"
]);
push("this.rpc = rpc;");
push("");
pushComment([
"Whether requests are length-delimited.",
"@type {boolean}"
]);
push("this.requestDelimited = Boolean(requestDelimited);");
push("");
pushComment([
"Whether responses are length-delimited.",
"@type {boolean}"
]);
push("this.responseDelimited = Boolean(responseDelimited);");
--indent;
push("};");
service.getMethodsArray().forEach(function(method) {
method.resolve();
var lcName = method.name.substring(0, 1).toLowerCase() + method.name.substring(1);
push("");
pushComment([
"Calls " + method.name + ".",
"@param {" + method.resolvedRequestType.fullName.substring(1) + "|Object} request " + method.resolvedRequestType.name + " or plain object",
"@param {function(?Error, " + method.resolvedResponseType.fullName.substring(1) + "=)} callback Node-style callback called with the error, if any, and " + method.resolvedResponseType.name,
"@returns {undefined}"
]);
push(name(service.name) + ".prototype." + name(lcName) + " = function " + name(lcName) + "(request, callback) {");
++indent;
push("var requestData;");
push("try {");
++indent;
push("requestData = (this.requestDelimited && $root" + name(method.resolvedRequestType.fullName) + ".encodeDelimited(request) || $root" + name(method.resolvedRequestType.fullName) + ".encode(request)).finish();");
--indent;
push("} catch (err) {");
++indent;
push("(typeof setImmediate === 'function' && setImmediate || setTimeout)(function() { callback(err); });");
push("return;");
--indent;
push("}");
push("var self = this;");
push("this.rpc(" + name(lcName) + ", requestData, function(err, responseData) {");
++indent;
push("if (err) {");
++indent;
push("callback(err);");
push("return;");
--indent;
push("}");
push("var response;");
push("try {");
++indent;
push("response = self.responseDelimited && $root" + name(method.resolvedResponseType.fullName) + ".decodeDelimited(responseData) || $root" + name(method.resolvedResponseType.fullName) + ".decode(responseData);");
--indent;
push("} catch (err2) {");
++indent;
push("callback(err2);");
push("return;");
--indent;
push("}");
push("callback(null, response);");
--indent;
push("});");
--indent;
push("};");
});
}

function buildEnum(ref, enm) {
push("");
pushComment([
enm.name + " values.",
"@exports " + enm.fullName.substring(1),
"@type {Object.<string,number>}"
]);
push(name(ref) + "." + name(enm.name) + " = {");
++indent;
push("");
var keys = Object.keys(enm.values);
for (var i = 0; i < keys.length; ++i) {
push(name(keys[i]) + ": " + enm.values[keys[i]].toString(10) + (i < keys.length - 1 ? "," : ""));
}
--indent;
push("};");
}
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