void AddLocalVariables(AST ast, VariableDefinition[] variableDefinitions)
{
AST nodeForDefiningGlobalVariables = ast.getChild(0).getChild(0);
if (variableDefinitions == null)
{
return;
}
foreach (VariableDefinition vd in variableDefinitions)
{
Token token = new Token(Token.TokenType.VAR_DECLARATION, "<VAR_DECL>", ast.getToken().LineNr, ast.getToken().LinePosition);
AST_VariableDeclaration declarationTree =
new AST_VariableDeclaration(token,
ReturnValueConversions.SystemTypeToReturnValueType(vd.initValue.GetType()),
vd.variableName);
if (vd.initValue != null)
{
AST assignmentTree = CreateAssignmentTreeFromInitValue(vd.variableName, vd.initValue);
AST declarationAndAssignmentTree = new AST(new Token(Token.TokenType.STATEMENT_LIST, "<DECLARATION_AND_ASSIGNMENT>", declarationTree.getToken().LineNr, declarationTree.getToken().LinePosition));
declarationAndAssignmentTree.addChild(declarationTree);
declarationAndAssignmentTree.addChild(assignmentTree);
nodeForDefiningGlobalVariables.addChild(declarationAndAssignmentTree);
}
else
{
nodeForDefiningGlobalVariables.addChild(declarationTree);
}
}
}
void AddLocalVariables(AST ast, VariableDefinition[] variableDefinitions)
{
AST nodeForDefiningGlobalVariables = ast.getChild(0).getChild(0);
if(variableDefinitions == null) { return; }
foreach(VariableDefinition vd in variableDefinitions) {
Token token = new Token(Token.TokenType.VAR_DECLARATION,"<VAR_DECL>", ast.getToken().LineNr, ast.getToken().LinePosition);
AST_VariableDeclaration declarationTree =
new AST_VariableDeclaration(token,
vd.initValue.getReturnValueType(),
vd.variableName);
if(vd.initValue != null)
{
AST assignmentTree = CreateAssignmentTreeFromInitValue(vd.variableName, vd.initValue);
AST declarationAndAssignmentTree = new AST(new Token(Token.TokenType.STATEMENT_LIST, "<DECLARATION_AND_ASSIGNMENT>", declarationTree.getToken().LineNr, declarationTree.getToken().LinePosition));
declarationAndAssignmentTree.addChild(declarationTree);
declarationAndAssignmentTree.addChild(assignmentTree);
nodeForDefiningGlobalVariables.addChild(declarationAndAssignmentTree);
}
else
{
nodeForDefiningGlobalVariables.addChild(declarationTree);
}
}
}
private AST declarationAndAssignment()
{
#if WRITE_DEBUG_INFO
Console.WriteLine("declaration and assignment");
#endif
AST_VariableDeclaration declarationTree = declaration();
Token assignmentToken = match(Token.TokenType.ASSIGNMENT);
AST expressionTree = expression();
if (expressionTree != null)
{
AST_Assignment assignmentTree = new AST_Assignment(assignmentToken, declarationTree.Name);
assignmentTree.addChild(expressionTree);
AST declarationAndAssignmentTree =
new AST(new Token(Token.TokenType.STATEMENT_LIST, "<DECLARATION_AND_ASSIGNMENT>", declarationTree.getToken().LineNr, declarationTree.getToken().LinePosition));
declarationAndAssignmentTree.addChild(declarationTree);
declarationAndAssignmentTree.addChild(assignmentTree);
return(declarationAndAssignmentTree);
}
else
{
throw new Error("The expression after = makes no sense", Error.ErrorType.SYNTAX,
lookAhead(1).LineNr, lookAhead(1).LinePosition);
}
}