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compile_java.py
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compile_java.py
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#! /usr/bin/python
# Written by Folkert van Heusden
# Released in the public domain
# www.vanheusden.com
import sys
from compile_c import CompileToC
class CompileToJava(CompileToC):
def header(self):
print('Brainfuck to Java compiler.', file=sys.stderr)
def get_name():
return ('java', None)
def addToData(self, n, dot, position):
ind = self.genindent(self.lindentlevel)
if n == 1:
print('%sdata_mem[data_ptr]++;' % ind)
else:
print('%sdata_mem[data_ptr] += %d;' % (ind, n))
print('%sdata_mem[data_ptr] &= 255;' % ind)
def subFromData(self, n, dot, position):
ind = self.genindent(self.lindentlevel)
if n == 1:
print('%sdata_mem[data_ptr]--;' % ind)
else:
print('%sdata_mem[data_ptr] -= %d;' % (ind, n))
print('%sdata_mem[data_ptr] &= 255;' % ind)
def emitCharacter(self, n, dot):
ind = self.genindent(self.lindentlevel)
for i in range(0, n):
print('%sSystem.out.print((char)data_mem[data_ptr]);' % ind)
print('%sSystem.out.flush();' % ind)
def emitProgramBootstrap(self, file):
print(f'// This is a translation of "{file}".')
for i in self.copyrightNotice:
print('// %s' % i)
print('')
print('class BrainfuckProgram {')
self.lindentlevel += 1
ind = self.genindent(self.lindentlevel)
print('%sint data_ptr = 0;' % ind)
print('%sint memory_size = 32768;' % ind)
print('%sshort [] data_mem = new short[memory_size];' % ind)
print('')
def emitMainFunction(self):
print('%spublic void run() {' % self.genindent(self.lindentlevel))
self.lindentlevel += 1
self.translate(0, len(self.allCode))
self.lindentlevel -= 1
print('%s}' % self.genindent(self.lindentlevel))
print('')
print('%spublic static void main(String [] args) {' % self.genindent(self.lindentlevel))
self.lindentlevel += 1
print('%sBrainfuckProgram bp = new BrainfuckProgram();' % self.genindent(self.lindentlevel))
print('%sbp.run();' % self.genindent(self.lindentlevel))
self.lindentlevel -= 1
print('%s}' % self.genindent(self.lindentlevel))
self.lindentlevel -= 1
print('%s}' % self.genindent(self.lindentlevel))