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Fixed handling of boolean attributes (frontends)

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This commit is contained in:
Clifford Wolf 2013-10-24 11:20:13 +02:00
parent eae43e2db4
commit 23cf23418c
5 changed files with 29 additions and 14 deletions
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16
frontends/ast/ast.cc
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@ -145,6 +145,20 @@ std::string AST::type2str(AstNodeType type)
}
}
// check if attribute exists and has non-zero value
bool AstNode::get_bool_attribute(RTLIL::IdString id)
{
if (attributes.count(id) == 0)
return false;
AstNode *attr = attributes.at(id);
if (attr->type != AST_CONSTANT)
log_error("Attribute `%s' with non-constant value at %s:%d!\n",
id.c_str(), attr->filename.c_str(), attr->linenum);
return attr->integer != 0;
}
// create new node (AstNode constructor)
// (the optional child arguments make it easier to create AST trees)
AstNode::AstNode(AstNodeType type, AstNode *child1, AstNode *child2)
@ -670,7 +684,7 @@ static AstModule* process_module(AstNode *ast)
delete child;
}
ast->children.swap(new_children);
ast->attributes["\\placeholder"] = AstNode::mkconst_int(0, false, 0);
ast->attributes["\\placeholder"] = AstNode::mkconst_int(1, false);
}
current_module = new AstModule;