1 files changed, 96 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/wasm/generateWasm.py b/Source/JavaScriptCore/wasm/generateWasm.py
new file mode 100755
index 000000000..6e1ddc24b
--- /dev/null
+++ b/Source/JavaScriptCore/wasm/generateWasm.py
@@ -0,0 +1,96 @@
+#! /usr/bin/python
+
+# Copyright (C) 2016 Apple Inc. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1.  Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer.
+# 2.  Redistributions in binary form must reproduce the above copyright
+#     notice, this list of conditions and the following disclaimer in the
+#     documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# This tool has a couple of helpful macros to process Wasm files from the wasm.json.
+
+import json
+import re
+
+class Wasm:
+    def __init__(self, scriptName, jsonPath):
+        wasmFile = open(jsonPath, "r")
+        wasm = json.load(open(jsonPath, "r"))
+        wasmFile.close()
+        for pre in wasm["preamble"]:
+            if pre["name"] == "version":
+                self.expectedVersionNumber = str(pre["value"])
+        self.preamble = wasm["preamble"]
+        self.types = wasm["type"]
+        self.opcodes = wasm["opcode"]
+        self.header = """/*
+ * Copyright (C) 2016 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+// DO NO EDIT! - This file was generated by """ + scriptName
+
+    def opcodeIterator(self, filter, ret=None):
+        # We need to do this because python is dumb and won't let me use self in the lambda, which is ridiculous.
+        if ret == None:
+            ret = lambda op: {"name": op, "opcode": self.opcodes[op]}
+        for op in self.opcodes.iterkeys():
+            if filter(self.opcodes[op]):
+                yield ret(op)
+
+    def toCpp(self, name):
+        camelCase = re.sub(r'([^a-z0-9].)', lambda c: c.group(0)[1].upper(), name)
+        CamelCase = camelCase[:1].upper() + camelCase[1:]
+        return CamelCase
+
+
+def isNormal(op):
+    return op["category"] == "arithmetic" or op["category"] == "comparison" or op["category"] == "conversion"
+
+
+def isUnary(op):
+    return isNormal(op) and len(op["parameter"]) == 1
+
+
+def isBinary(op):
+    return isNormal(op) and len(op["parameter"]) == 2
+
+
+def isSimple(op):
+    return "b3op" in op