def p_fdef(p):
'''fdef : DEF IDENTIFIER tuple block
'''
p[0] = Node('FuncDef')
p[0].name = p[2].value
p[0].args = Node('Arguments')
p[0].args.args = p[3].elems
p[0].body = p[4].body
def p_struct_start(p):
"""struct_start : STRUCT NAME LCURLY"""
p[0] = Node("struct")
p[0].name = p[2].value
p[0].elems = []
