// switch
private static void rule_switch(DefaultMutableTreeNode parent) {
DefaultMutableTreeNode node = null;
DefaultMutableTreeNode parentS = parent;
node = new DefaultMutableTreeNode("switch");
parent.add(node);
String id = "";
if (tokens.get(currentToken).getWord().equals("(")) {
node = new DefaultMutableTreeNode("(");
parent.add(node);
currentToken++;
}
if (tokens.get(currentToken).getToken().equals("IDENTIFIER")) {
node = new DefaultMutableTreeNode("identifier(" + tokens.get(currentToken).getWord() + ")");
parent.add(node);
int line = tokens.get(currentToken).getLine();
id = tokens.get(currentToken).getWord();
String type = SemanticAnalyzer.doesExist(id);
String value = SemanticAnalyzer.getValue(id);
if (type.equals("error")) SemanticAnalyzer.error(gui, 0, line, id);
currentToken++;
}
if (tokens.get(currentToken).getWord().equals(")")) {
node = new DefaultMutableTreeNode(")");
parent.add(node);
currentToken++;
}
if (tokens.get(currentToken).getWord().equals("{")) {
node = new DefaultMutableTreeNode("{");
parent.add(node);
currentToken++;
}
if (tokens.get(currentToken).getWord().equals("case")) {
node = new DefaultMutableTreeNode("case");
parentS.add(node);
currentToken++;
}
rule_cases(parentS, node, id);
if (tokens.get(currentToken).getWord().equals("default")) {
node = new DefaultMutableTreeNode("default");
parent.add(node);
currentToken++;
CodeGenerator.addInstruction("JMP", "#labelD", "0");
codeLine++;
rule_default(node);
}
if (tokens.get(currentToken).getWord().equals("}")) {
node = new DefaultMutableTreeNode("}");
parent.add(node);
currentToken++;
}
// codeLine++;
// codeLine++;
CodeGenerator.addLabel("labelES", codeLine);
}
// cases
private static void rule_cases(
DefaultMutableTreeNode parent, DefaultMutableTreeNode caseParent, String id) {
DefaultMutableTreeNode node = null;
DefaultMutableTreeNode nodeP = caseParent;
node = new DefaultMutableTreeNode("case");
caseParent.add(node);
// int labelNum = 2;
// int num = lNum;
do {
if (tokens.get(currentToken).getWord().equals("case")) {
nodeP = new DefaultMutableTreeNode("case");
parent.add(nodeP);
currentToken++;
node = new DefaultMutableTreeNode("case");
nodeP.add(node);
}
String name = tokens.get(currentToken).getWord();
String type = tokens.get(currentToken).getToken();
String value = SemanticAnalyzer.getValue(name);
if (type.equals("INTEGER")) {
node = new DefaultMutableTreeNode("integer(" + name + ")");
nodeP.add(node);
currentToken++;
CodeGenerator.addInstruction("LOD", id, "0");
codeLine++;
CodeGenerator.addInstruction("LIT", name, "0");
codeLine++;
CodeGenerator.addInstruction("OPR", "15", "0");
codeLine++;
CodeGenerator.addInstruction("JMC", "#label" + lNum, "false");
codeLine++;
} else if (type.equals("OCTAL")) {
node = new DefaultMutableTreeNode("octal(" + name + ")");
nodeP.add(node);
currentToken++;
CodeGenerator.addInstruction("LOD", id, "0");
codeLine++;
CodeGenerator.addInstruction("LIT", name, "0");
codeLine++;
CodeGenerator.addInstruction("OPR", "15", "0");
codeLine++;
CodeGenerator.addInstruction("JMC", "#label" + lNum, "false");
codeLine++;
} else if (type.equals("HEXIDECIMAL")) {
node = new DefaultMutableTreeNode("hexidecimal(" + name + ")");
nodeP.add(node);
currentToken++;
CodeGenerator.addInstruction("LOD", id, "0");
codeLine++;
CodeGenerator.addInstruction("LIT", name, "0");
codeLine++;
CodeGenerator.addInstruction("OPR", "15", "0");
codeLine++;
CodeGenerator.addInstruction("JMC", "#label" + lNum, "false");
codeLine++;
} else if (type.equals("BINARY")) {
node = new DefaultMutableTreeNode("binary(" + name + ")");
nodeP.add(node);
currentToken++;
CodeGenerator.addInstruction("LOD", id, "0");
codeLine++;
CodeGenerator.addInstruction("LIT", name, "0");
codeLine++;
CodeGenerator.addInstruction("OPR", "15", "0");
codeLine++;
CodeGenerator.addInstruction("JMC", "#label" + lNum, "false");
codeLine++;
}
// else error
if (tokens.get(currentToken).getWord().equals(":")) {
node = new DefaultMutableTreeNode(":");
nodeP.add(node);
currentToken++;
}
rule_program(nodeP);
CodeGenerator.addInstruction("JMP", "#labelES", "0");
codeLine++;
CodeGenerator.addLabel("label" + lNum, codeLine);
lNum++;
} while (tokens.get(currentToken).getWord().equals("case"));
}