1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
# Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
# Copyright (c) 2009 The Hewlett-Packard Development Company
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met: redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer;
# redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution;
# neither the name of the copyright holders nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
from m5.util import code_formatter
from slicc.ast.ExprAST import ExprAST
class MethodCallExprAST(ExprAST):
def __init__(self, slicc, proc_name, expr_ast_vec):
super(MethodCallExprAST, self).__init__(slicc)
self.proc_name = proc_name
self.expr_ast_vec = expr_ast_vec
def generate(self, code):
tmp = code_formatter()
paramTypes = []
for expr_ast in self.expr_ast_vec:
return_type = expr_ast.generate(tmp)
paramTypes.append(return_type)
obj_type, methodId, prefix = self.generate_prefix(paramTypes)
# generate code
params = []
for expr_ast in self.expr_ast_vec:
return_type,tcode = expr_ast.inline(True)
params.append(str(tcode))
fix = code.nofix()
code("$prefix${{self.proc_name}}(${{', '.join(params)}}))")
code.fix(fix)
# Verify that this is a method of the object
if methodId not in obj_type.methods:
self.error("Invalid method call: Type '%s' does not have a method '%s'",
obj_type, methodId)
if len(self.expr_ast_vec) != \
len(obj_type.methods[methodId].param_types):
# Right number of parameters
self.error("Wrong number of parameters for function name: '%s', " + \
"expected: , actual: ", proc_name,
len(obj_type.methods[methodId].param_types),
len(self.expr_ast_vec))
for actual_type, expected_type in \
zip(paramTypes, obj_type.methods[methodId].param_types):
if actual_type != expected_type:
self.error("Type mismatch: expected: %s actual: %s",
expected_type, actual_type)
# Return the return type of the method
return obj_type.methods[methodId].return_type
def findResources(self, resources):
pass
class MemberMethodCallExprAST(MethodCallExprAST):
def __init__(self, slicc, obj_expr_ast, proc_name, expr_ast_vec):
s = super(MemberMethodCallExprAST, self)
s.__init__(slicc, proc_name, expr_ast_vec)
self.obj_expr_ast = obj_expr_ast
def __repr__(self):
return "[MethodCallExpr: %r%r %r]" % (self.proc_name,
self.obj_expr_ast,
self.expr_ast_vec)
def generate_prefix(self, paramTypes):
code = code_formatter()
# member method call
obj_type = self.obj_expr_ast.generate(code)
methodId = obj_type.methodId(self.proc_name, paramTypes)
prefix = ""
if methodId not in obj_type.methods:
self.error("Invalid method call: Type '%s' does not have a method '%s'",
obj_type, methodId)
return_type = obj_type.methods[methodId].return_type
if return_type.isInterface:
prefix = "static_cast<%s &>" % return_type.c_ident
prefix = "%s((%s)." % (prefix, code)
return obj_type, methodId, prefix
class ClassMethodCallExprAST(MethodCallExprAST):
def __init__(self, slicc, type_ast, proc_name, expr_ast_vec):
s = super(ClassMethodCallExprAST, self)
s.__init__(slicc, proc_name, expr_ast_vec)
self.type_ast = type_ast
def __repr__(self):
return "[MethodCallExpr: %r %r]" % (self.proc_name, self.expr_ast_vec)
def generate_prefix(self, paramTypes):
# class method call
prefix = "(%s::" % self.type_ast
obj_type = self.type_ast.type
methodId = obj_type.methodId(self.proc_name, paramTypes)
return obj_type, methodId, prefix
__all__ = [ "MemberMethodCallExprAST", "ClassMethodCallExprAST" ]
|
