def emitICONST(self, i):
# i: Int
if i == -1:
return JasminCode.INDENT + "iconst_ml" + JasminCode.END
elif i >= 0 or i <= 5:
return JasminCode.INDENT + "iconst_" + str(i) + JasminCode.END
else:
raise IllegalOperandException(str(i))
def emitWRITEVAR2(self, name, typ, frame):
# name: String
# typ: Type
# frame: Frame
# ..., value -> ...
# frame.push()
raise IllegalOperandException(name)
def emitFCONST(self, i):
# i: String
if i == "0.0":
return JasminCode.INDENT + "fconst_0" + JasminCode.END
elif i == "1.0":
return JasminCode.INDENT + "fconst_1" + JasminCode.END
elif i == "2.0":
return JasminCode.INDENT + "fconst_2" + JasminCode.END
else:
raise IllegalOperandException(i)
def emitALOAD(self, in_, frame):
# in_: Type
# frame: Frame
# ..., arrayref, index, value -> ...
frame.pop()
if isinstance(in_, IntType):
return self.jvm.emitIALOAD()
elif isinstance(in_, ArrayPointerType) or\
isinstance(in_, ClassType) or\
isinstance(in_, StringType):
return self.jvm.emitAALOAD()
else:
raise IllegalOperandException(str(in_))
def emitPUSHCONST(self, in_, typ, frame):
# in_: String
# typ: Type
# frame: Frame
if isinstance(typ, IntType):
return self.emitPUSHICONST(in_, frame)
elif isinstance(typ, BoolType):
return self.emitPUSHICONST(in_, frame)
elif isinstance(typ, StringType):
frame.push()
return self.jvm.emitLDC(in_)
else:
raise IllegalOperandException(in_)
def emitREADVAR(self, name, inType, index, frame):
# name: String
# inType: Type
# index: Int
# frame: Frame
# ... -> ..., value
frame.push()
if isinstance(inType, (IntType, BoolType)):
return self.jvm.emitILOAD(index)
elif isinstance(inType, FloatType):
return self.jvm.emitFLOAD(index)
elif isinstance(inType, ArrayPointerType) or\
isinstance(inType, ClassType) or\
isinstance(inType, StringType):
return self.jvm.emitALOAD(index)
else:
raise IllegalOperandException(name)
def emitWRITEVAR(self, name, inType, index, frame):
# name: String
# inType: Type
# index: Int
# frame: Frame
# ..., value -> ...
frame.pop()
if isinstance(inType, (IntType, BoolType)):
return self.jvm.emitISTORE(index)
elif isinstance(inType, FloatType):
return self.jvm.emitFSTORE(index)
elif isinstance(inType, ArrayPointerType) or\
isinstance(inType, ClassType) or\
isinstance(inType, StringType):
return self.jvm.emitASTORE(index)
else:
raise IllegalOperandException(name)
def emitSIPUSH(self, i):
# i: Int
if (i >= -32768 and i < -128) or (i > 127 and i <= 32767):
return JasminCode.INDENT + "sipush " + str(i) + JasminCode.END
else:
raise IllegalOperandException(str(i))
def emitBIPUSH(self, i):
# i: Int
if (i >= -128 and i < -1) or (i > 5 and i <= 127):
return JasminCode.INDENT + "bipush " + str(i) + JasminCode.END
else:
raise IllegalOperandException(str(i))