def p_value_parameter(p):
'''value_parameter : identifiers COLON type_identifier
| IDENTIFIER COLON type_identifier
| identifiers COLON KEYWORD_ARRAY KEYWORD_OF type_identifier
| IDENTIFIER COLON KEYWORD_ARRAY KEYWORD_OF type_identifier'''
p[0] = IG.Node()
if len(p) == 4:
if type(p[1]) == IG.Node:
p[0].items = p[1].items
for item in p[1].items:
ST.currSymTab.addVar(item, p[3].type, isParameter=True)
else:
p[0].items.append(p[1])
ST.currSymTab.addVar(p[1], p[3].type, isParameter=True)
elif len(p) == 5:
if type(p[1]) == IG.Node:
p[0].items = p[1].items
for item in p[1].items:
ST.currSymTab.addVar(item,
ST.Type('array',
ST.Type.ARRAY,
arrayBaseType=p[5].type),
isParameter=True)
else:
p[0].items.append(p[1])
ST.currSymTab.addVar(p[1],
ST.Type('array',
ST.Type.ARRAY,
arrayBaseType=p[5].type),
isParameter=True)
def p_type_statement(p):
'''type_statement : identifiers EQUAL type SEMICOLON
| IDENTIFIER EQUAL type SEMICOLON'''
if type(p[1]) == IG.Node:
for item in p[1].items:
ST.currSymTab.addVar(
item, ST.Type(item, ST.Type.TYPE, baseType=p[3].type))
else:
ST.currSymTab.addVar(p[1],
ST.Type(p[1], ST.Type.TYPE, baseType=p[3].type))
def p_program_statement(p):
'''program_statement : KEYWORD_PROGRAM IDENTIFIER SEMICOLON
| empty'''
if len(p) == 4:
ST.currSymTab.addVar(p[2], ST.Type('program', ST.Type.PROGRAM))
else:
pass
def newTempArray():
global tempCount
tempVar = ST.currSymTab.addVar('.t' + str(tempCount),
ST.Type('array', ST.Type.ARRAY),
isTemp=True)
tempCount += 1
return tempVar
def newTempString():
global tempCount
tempVar = ST.currSymTab.addVar('.t' + str(tempCount),
ST.Type('string', ST.Type.STRING),
isTemp=True)
tempCount += 1
return tempVar
def newTempChar():
global tempCount
tempVar = ST.currSymTab.addVar('.t' + str(tempCount),
ST.Type('char', ST.Type.CHAR),
isTemp=True)
tempCount += 1
return tempVar
def newTempBool():
global tempCount
tempVar = ST.currSymTab.addVar('.t' + str(tempCount),
ST.Type('boolean', ST.Type.BOOL),
isTemp=True)
tempCount += 1
return tempVar
def newTempInt():
global tempCount
tempVar = ST.currSymTab.addVar('.t' + str(tempCount),
ST.Type('integer', ST.Type.INT),
isTemp=True)
tempCount += 1
return tempVar
def p_array_declaration(p):
'''array_declaration : KEYWORD_ARRAY LEFT_SQUARE_BRACKETS array_ranges RIGHT_SQUARE_BRACKETS KEYWORD_OF type'''
p[0] = IG.Node()
p[0].type = ST.Type('array',
ST.Type.ARRAY,
arrayBeginList=p[3].arrayBeginList,
arrayEndList=p[3].arrayEndList,
arrayBaseType=p[6].type)
def p_unsigned_constant(p):
'''unsigned_constant : CONSTANT_INTEGER
| CONSTANT_HEX
| CONSTANT_BINARY
| CONSTANT_OCTAL
| CONSTANT_NIL
| CONSTANT_BOOLEAN_TRUE
| CONSTANT_BOOLEAN_FALSE
| string'''
p[0] = IG.Node()
p[0].place = p[1]
if type(p[1]) == int:
p[0].type = ST.Type('integer', ST.Type.INT)
elif type(p[1]) == str:
if p[1] == 'true' or p[1] == 'false':
p[0].type = ST.Type('boolean', ST.Type.BOOL)
else: # TODO Nil is string FIXME
p[0].type = ST.Type('string', ST.Type.STRING)
def p_string_declaration(p):
'''string_declaration : KEYWORD_STRING LEFT_SQUARE_BRACKETS CONSTANT_INTEGER RIGHT_SQUARE_BRACKETS'''
p[0] = IG.Node()
p[0].type = ST.Type('string', ST.Type.TYPE, strLen=p[3])
def p_type_identifier(p):
'''type_identifier : IDENTIFIER
| KEYWORD_STRING'''
p[0] = IG.Node()
p[0].type = ST.Type(p[1], ST.Type.TYPE)
