NodePointer Parser::statement()
{
NodePointer result;
switch (currentSymbol_.symbolType_)
{
case IF:
return ifStatement();
case WHILE:
return whileStatement();
case IDENTIFIER:
case GLOBAL:
case ARGUMENT:
case CALL:
case CONSTANT:
result = expression();
accept(SEMICOLON);
return result;
case MY:
return localVariable();
case PRINT:
return printStatement();
case SUBROUTINE:
return procedureDefinition();
case RETURN:
return returnStatement();
case LEFT_BRACE:
return blockStatement();
default:
throw ErrorMessage("Unexpected symbol " + symbolToString(currentSymbol_), getLineNumber());
}
}
dScriptCompiler::dUserVariable dScriptCompiler::ConcatenateExpressions(const dUserVariable& expressionA, const dUserVariable& expressionB)
{
dUserVariable returnNode;
dDAGExpressionNode* const nodeA = (dDAGExpressionNode*)expressionA.m_node;
dDAGExpressionNode* const nodeB = (dDAGExpressionNode*)expressionB.m_node;
dAssert (nodeA->IsType(dDAGExpressionNode::GetRttiType()));
dAssert (nodeB->IsType(dDAGExpressionNode::GetRttiType()));
dDAGExpressionNode* nextNode = nodeA;
for (; nextNode->m_next; nextNode = (dDAGExpressionNode*) nextNode->m_next);
nextNode->m_next = nodeB;
dDAGExpressionNodeVariable* const leftVarListA = nodeA->FindLeftVariable();
if (leftVarListA && leftVarListA->m_type) {
dDAGExpressionNodeVariable* const leftVarListB = nodeB->FindLeftVariable();
if (leftVarListB && !leftVarListB->m_type) {
dUserVariable localVariable(NewVariableStatement (leftVarListB->m_name, ""));
dDAGParameterNode* const variableNode = (dDAGParameterNode*)localVariable.m_node;
dAssert (variableNode->IsType(dDAGParameterNode::GetRttiType()));
variableNode->SetType((dDAGTypeNode*) leftVarListA->m_type->Clone(m_allNodes));
leftVarListB->SetType((dDAGTypeNode*) leftVarListA->m_type->Clone(m_allNodes));
if (m_scopeStack.GetCount()) {
dDAGScopeBlockNode* const block = GetCurrentScope();
block->AddStatement(variableNode);
} else {
dAssert (0);
//dDAGClassNode* const curClass = GetCurrentClass();
//curClass->AddVariable(variableNode);
}
}
}
returnNode.m_node = nodeA;
return returnNode;
}