Built motion from commit 6a09e18b.|2.6.11

[motion2.git] / legacy-libs / protobufjs / src / verifier.js

diff --git a/legacy-libs/protobufjs/src/verifier.js b/legacy-libs/protobufjs/src/verifier.js
new file mode 100644 (file)
index 0000000..d58e27a
--- /dev/null
+++ b/legacy-libs/protobufjs/src/verifier.js
@@ -0,0 +1,177 @@
+"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 */
+}
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