void visit_string_switch_statement(SwitchStatement stmt)
{
// we need a temporary variable to save the property value
var temp_value = create_temp_value(stmt.expression.value_type, false, stmt);
var ctemp = get_cvalue_(temp_value);
var cinit = new CCodeAssignment(ctemp, get_cvalue(stmt.expression));
var czero = new CCodeConstant("0");
var free_call = new CCodeFunctionCall(new CCodeIdentifier("g_free"));
free_call.add_argument(ctemp);
var cisnull = new CCodeBinaryExpression(CCodeBinaryOperator.EQUALITY, new CCodeConstant("NULL"), ctemp);
var cquark = new CCodeFunctionCall(new CCodeIdentifier("g_quark_from_string"));
cquark.add_argument(ctemp);
var ccond = new CCodeConditionalExpression(cisnull, new CCodeConstant("0"), cquark);
int label_temp_id = next_temp_var_id++;
temp_value = create_temp_value(gquark_type, true, stmt);
int label_count = 0;
foreach (SwitchSection section in stmt.get_sections())
{
if (section.has_default_label())
{
continue;
}
foreach (SwitchLabel label in section.get_labels())
{
label.expression.emit(this);
var cexpr = get_cvalue(label.expression);
if (is_constant_ccode_expression(cexpr))
{
var cname = "_tmp%d_label%d".printf(label_temp_id, label_count++);
ccode.add_declaration(get_ccode_name(gquark_type), new CCodeVariableDeclarator(cname, czero), CCodeModifiers.STATIC);
}
}
}
ccode.add_expression(cinit);
ctemp = get_cvalue_(temp_value);
cinit = new CCodeAssignment(ctemp, ccond);
ccode.add_expression(cinit);
if (stmt.expression.value_type.value_owned)
{
// free owned string
ccode.add_expression(free_call);
}
SwitchSection default_section = null;
label_count = 0;
int n = 0;
foreach (SwitchSection section in stmt.get_sections())
{
if (section.has_default_label())
{
default_section = section;
continue;
}
CCodeBinaryExpression cor = null;
foreach (SwitchLabel label in section.get_labels())
{
label.expression.emit(this);
var cexpr = get_cvalue(label.expression);
if (is_constant_ccode_expression(cexpr))
{
var cname = new CCodeIdentifier("_tmp%d_label%d".printf(label_temp_id, label_count++));
var ccondition = new CCodeBinaryExpression(CCodeBinaryOperator.INEQUALITY, czero, cname);
var ccall = new CCodeFunctionCall(new CCodeIdentifier("g_quark_from_static_string"));
cinit = new CCodeAssignment(cname, ccall);
ccall.add_argument(cexpr);
cexpr = new CCodeConditionalExpression(ccondition, cname, cinit);
}
else
{
var ccall = new CCodeFunctionCall(new CCodeIdentifier("g_quark_from_string"));
ccall.add_argument(cexpr);
cexpr = ccall;
}
var ccmp = new CCodeBinaryExpression(CCodeBinaryOperator.EQUALITY, ctemp, cexpr);
if (cor == null)
{
cor = ccmp;
}
else
{
cor = new CCodeBinaryExpression(CCodeBinaryOperator.OR, cor, ccmp);
}
}
if (n > 0)
{
ccode.else_if(cor);
}
else
{
ccode.open_if(cor);
}
ccode.open_switch(new CCodeConstant("0"));
ccode.add_default();
section.emit(this);
ccode.close();
n++;
}
if (default_section != null)
{
if (n > 0)
{
ccode.add_else();
}
ccode.open_switch(new CCodeConstant("0"));
ccode.add_default();
default_section.emit(this);
ccode.close();
}
if (n > 0)
{
ccode.close();
}
}
