def p_assignment_leftpointer(p):
"""
assignment : startwithstar ASSIGN arithmeticexpr
"""
if(not utils.assignmentTypeCheck(p[1], p[3], "assignment")):
print("Type mismatch at assignment")
sys.exit()
p[0] = ASTNode('ASGN', p[1].dtype, p[1].pointerdepth, [p[1], p[3]])
def p_returnstmtforfunc(p):
"""
returnstmtforfunc : returnstmt
"""
(funcRet, funcDerive, _) = funcSymDict[currentScope]
temp = ASTNode('RETURN',funcRet ,funcDerive, [])
if not utils.assignmentTypeCheck(temp, p[1], "return"):
sys.exit()
p[0] = ASTNode('RETURN', p[1].dtype, p[1].pointerdepth, [p[1]])
def p_assignment_leftvar(p):
"""
assignment : NAME ASSIGN arithmeticexpr
"""
global currentScope, varSymDict
(dtype, pointerdepth) = utils.giveVarSymOutput(p[1], currentScope, varSymDict)
nodeL = ASTNode('VAR', dtype, pointerdepth, [p[1]])
if(not utils.assignmentTypeCheck(nodeL, p[3], "assignment")):
print("Type mismatch at assignment")
sys.exit()
p[0] = ASTNode('ASGN', nodeL.dtype, nodeL.pointerdepth, [nodeL, p[3]])
def p_boolfromarith_def(p):
"""
boolfromarith : arithmeticexpr LTE arithmeticexpr
| arithmeticexpr GTE arithmeticexpr
| arithmeticexpr LT arithmeticexpr
| arithmeticexpr GT arithmeticexpr
| arithmeticexpr COMPARENOTEQUAL arithmeticexpr
| arithmeticexpr COMPAREEQUAL arithmeticexpr
"""
if not utils.assignmentTypeCheck(p[1], p[3], "comparison"):
sys.exit()
if(p[2] == '<='):
p[0] = ASTNode('LE', None, None, [p[1], p[3]])
elif(p[2] == '>='):
p[0] = ASTNode('GE', None, None, [p[1], p[3]])
elif(p[2] == '<'):
p[0] = ASTNode('LT', None, None, [p[1], p[3]])
elif(p[2] == '>'):
p[0] = ASTNode('GT', None, None, [p[1], p[3]])
elif(p[2] == '!='):
p[0] = ASTNode('NE', None, None, [p[1], p[3]])
else:
p[0] = ASTNode('EQ', None, None, [p[1], p[3]])