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genstructs.py: refactor; use match/case statement
- lol, i had no idea python *FINALLY* added a switch/case equivalent.
sadly though, it looks like the generated python bytecode is
nearly identical in performance.
there's no lookup table magic for match/case, and is almost
identical to if/else if/else. it amounts to syntax sugar 😭
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7eece044c5
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@ -32,10 +32,10 @@ WARN_INVALID = False
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class StructTranspiler:
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class StructField:
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def __init__(self, name: str, type: str, marshal: str) -> None:
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def __init__(self, name: str, csType: str, marshal: str) -> None:
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self.marshal = marshal
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self.type = type
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self.ctype = type # for transpilation to c
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self.type = csType
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self.ctype = csType # for transpilation to c
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self.tags = ""
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self.size = 0
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self.padding = 0
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@ -43,87 +43,88 @@ class StructTranspiler:
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self.cname = self.name
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self.needsPatching = False
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if type == "byte":
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self.type = "uint8"
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self.ctype = "char"
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self.size = 1
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elif type == "sbyte":
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self.type = "int8"
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self.ctype = "char"
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self.size = 1
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elif type == "short":
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self.type = "int16"
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self.ctype = "short"
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self.size = 2
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elif type == "int":
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self.type = "int32"
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self.ctype = "int"
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self.size = 4
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elif type == "uint":
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self.type = "uint32"
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self.ctype = "int"
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self.size = 4
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elif type == "float":
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self.type = "float32"
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self.ctype = "float"
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self.size = 4
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elif type == "long":
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self.type = "int64"
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self.ctype = "long"
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self.size = 8
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elif type == "ulong":
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self.type = "uint64"
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self.ctype = "long"
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self.size = 8
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elif type == "byte[]":
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self.size = int(marshal[(marshal.find("SizeConst = ") + len("SizeConst = ")):marshal.find(")]")])
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self.type = "[%d]byte" % self.size
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self.ctype = "char"
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self.cname += "[%d]" % self.size
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elif type == "short[]":
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self.size = int(marshal[(marshal.find("SizeConst = ") + len("SizeConst = ")):marshal.find(")]")])
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self.type = "[%d]int16" % self.size
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self.ctype = "short"
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self.cname += "[%d]" % self.size
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self.size *= 2
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elif type == "string":
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# all strings in fusionfall are utf16, in a uint16 array
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self.size = int(marshal[(marshal.find("SizeConst = ") + len("SizeConst = ")):marshal.find(")]")])
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self.type = "string"
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self.addTag("size:\"%d\"" % self.size) # special tag to tell our decoder/encoder the size of the uint16[] array
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self.ctype = "short"
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self.cname += "[%d]" % self.size
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self.size *= 2
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elif type == "int[]":
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self.size = int(marshal[(marshal.find("SizeConst = ") + len("SizeConst = ")):marshal.find(")]")])
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self.type = "[%d]int32" % self.size
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self.ctype = "int"
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self.cname += "[%d]" % self.size
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self.size *= 4
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elif type == "float[]":
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self.size = int(marshal[(marshal.find("SizeConst = ") + len("SizeConst = ")):marshal.find(")]")])
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self.type = "[%d]float32" % self.size
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self.ctype = "float"
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self.cname += "[%d]" % self.size
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self.size *= 4
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elif type == "long[]":
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self.size = int(marshal[(marshal.find("SizeConst = ") + len("SizeConst = ")):marshal.find(")]")])
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self.type = "[%d]int64" % self.size
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self.ctype = "long"
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self.cname += "[%d]" % self.size
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self.size *= 8
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else:
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# assume it's a structure that will be defined later
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if type.find("[]") != -1: # it's an array!
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type = type.replace("[]", "")
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self.size = int(marshal[(marshal.find("SizeConst = ") + len("SizeConst = ")):marshal.find(")]")])
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self.cname = self.name + "[%d]" % self.size
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else:
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self.cname = self.name
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match csType:
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case "byte":
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self.type = "uint8"
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self.ctype = "char"
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self.size = 1
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self.type = sanitizeName(type)
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self.ctype = sanitizeName(type)
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self.needsPatching = True
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case "sbyte":
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self.type = "int8"
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self.ctype = "char"
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self.size = 1
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case "short":
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self.type = "int16"
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self.ctype = "short"
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self.size = 2
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case "int":
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self.type = "int32"
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self.ctype = "int"
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self.size = 4
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case "uint":
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self.type = "uint32"
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self.ctype = "int"
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self.size = 4
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case "float":
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self.type = "float32"
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self.ctype = "float"
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self.size = 4
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case "long":
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self.type = "int64"
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self.ctype = "long"
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self.size = 8
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case "ulong":
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self.type = "uint64"
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self.ctype = "long"
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self.size = 8
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case "byte[]":
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self.size = int(marshal[(marshal.find("SizeConst = ") + len("SizeConst = ")):marshal.find(")]")])
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self.type = "[%d]byte" % self.size
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self.ctype = "char"
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self.cname += "[%d]" % self.size
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case "short[]":
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self.size = int(marshal[(marshal.find("SizeConst = ") + len("SizeConst = ")):marshal.find(")]")])
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self.type = "[%d]int16" % self.size
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self.ctype = "short"
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self.cname += "[%d]" % self.size
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self.size *= 2
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case "string":
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# all strings in fusionfall are utf16, in a uint16 array
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self.size = int(marshal[(marshal.find("SizeConst = ") + len("SizeConst = ")):marshal.find(")]")])
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self.type = "string"
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self.addTag("size:\"%d\"" % self.size) # special tag to tell our decoder/encoder the size of the uint16[] array
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self.ctype = "short"
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self.cname += "[%d]" % self.size
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self.size *= 2
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case "int[]":
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self.size = int(marshal[(marshal.find("SizeConst = ") + len("SizeConst = ")):marshal.find(")]")])
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self.type = "[%d]int32" % self.size
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self.ctype = "int"
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self.cname += "[%d]" % self.size
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self.size *= 4
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case "float[]":
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self.size = int(marshal[(marshal.find("SizeConst = ") + len("SizeConst = ")):marshal.find(")]")])
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self.type = "[%d]float32" % self.size
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self.ctype = "float"
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self.cname += "[%d]" % self.size
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self.size *= 4
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case "long[]":
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self.size = int(marshal[(marshal.find("SizeConst = ") + len("SizeConst = ")):marshal.find(")]")])
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self.type = "[%d]int64" % self.size
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self.ctype = "long"
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self.cname += "[%d]" % self.size
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self.size *= 8
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case _:
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# assume it's a structure that will be defined later
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if csType.find("[]") != -1: # it's an array!
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csType = csType.replace("[]", "")
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self.size = int(marshal[(marshal.find("SizeConst = ") + len("SizeConst = ")):marshal.find(")]")])
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self.cname = self.name + "[%d]" % self.size
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else:
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self.cname = self.name
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self.size = 1
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self.type = sanitizeName(csType)
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self.ctype = sanitizeName(csType)
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self.needsPatching = True
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def addTag(self, tag: str) -> None:
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if len(self.tags) > 0: # if there's already a tag defined, make sure there's a space separating them
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