public void Visit(IfStatementNode statement)
{
int labelIndex = _labelCount++;
string falseLabel = "if_false_" + labelIndex;
string endLabel = "if_end_" + labelIndex;
EmitComment("If: condition");
statement.Condition.Accept(this);
EmitComment("If: jump");
Emit("brfalse", falseLabel);
EmitComment("If: begin true part");
statement.ThenBody.Accept(this);
if (statement.ElseBody != null)
{
Emit("br", endLabel);
}
EmitComment("If: end true part");
EmitLabel(falseLabel);
if (statement.ElseBody != null)
{
EmitComment("If: begin false part");
statement.ElseBody.Accept(this);
EmitComment("If: end false part");
EmitLabel(endLabel);
}
}
public void Visit(IfStatementNode statement)
{
statement.Condition.Accept(this);
Emit("if (stack.pop()) {");
++_indentationLevel;
statement.ThenBody.Accept(this);
--_indentationLevel;
Emit("}");
if (statement.ElseBody != null)
{
Emit("else {");
++_indentationLevel;
statement.ElseBody.Accept(this);
--_indentationLevel;
Emit("}");
}
}
public void Visit(IfStatementNode statement)
{
int labelIndex = _labelCount++;
string falseLabel = "if_false_" + labelIndex;
string endLabel = "if_end_" + labelIndex;
EmitComment("If: condition");
statement.Condition.Accept(this);
EmitComment("If: jump");
Emit("ifeq", falseLabel);
EmitComment("If: begin true part");
statement.ThenBody.Accept(this);
if (statement.ElseBody != null)
Emit("goto", endLabel);
EmitComment("If: end true part");
EmitLabel(falseLabel);
if (statement.ElseBody != null)
{
EmitComment("If: begin false part");
statement.ElseBody.Accept(this);
EmitComment("If: end false part");
EmitLabel(endLabel);
}
}
public void Visit(IfStatementNode statement)
{
statement.Condition.Accept(this);
Emit("if (stack.pop()) {");
++_indentationLevel;
statement.ThenBody.Accept(this);
--_indentationLevel;
Emit("}");
if (statement.ElseBody != null)
{
Emit("else {");
++_indentationLevel;
statement.ElseBody.Accept(this);
--_indentationLevel;
Emit("}");
}
}