# 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,
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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from slicc.ast.ExprAST import ExprAST
from slicc.symbols import Type

class LiteralExprAST(ExprAST):
    def __init__(self, slicc, literal, type):
        super(LiteralExprAST, self).__init__(slicc)
        self.literal = literal
        self.type = type

    def __repr__(self):
        return "[Literal: %s]" % self.literal

    def generate(self, code):
        fix = code.nofix()
        if self.type == "std::string":
            code('("${{self.literal}}")')
        elif self.type == "bool":
            code('(${{str(self.literal).lower()}})')
        else:
            code('(${{self.literal}})')
        code.fix(fix)

        type = self.symtab.find(self.type, Type)
        if type is None:
            # Can't find the type
            self.error("Internal: can't primitive type '%s'" % self.type)

        return type
