private Compiler(Context context)
{
context.put(CONTEX_KEY, this);
options = CommandLineOptions.instance(context);
parser = ParserRunner.instance(context);
declarationAnalysis = DeclarationAnalysis.instance(context);
codeTypeAnalysis = CodeTypeAnalysis.instance(context);
flowAnalysis = FlowAnalysis.instance(context);
codeGeneration = CodeGeneration.instance(context);
log = Log.instance(context);
}
internal static TypeSymbol EmitPow(CodeGenerator cg, TypeSymbol xtype, FlowAnalysis.TypeRefMask xtype_hint, BoundExpression right)
{
var il = cg.Builder;
TypeSymbol ytype;
xtype = cg.EmitConvertIntToLong(xtype); // int|bool -> long
switch (xtype.SpecialType)
{
case SpecialType.System_Int64:
ytype = cg.EmitConvertIntToLong(cg.Emit(right)); // int|bool -> long
if (ytype.SpecialType == SpecialType.System_Int64)
{
// i8 ** i8 : number
return cg.EmitCall(ILOpCode.Call, cg.CoreMethods.PhpNumber.Pow_long_long);
}
else if (ytype.SpecialType == SpecialType.System_Double)
{
// i8 ** r8 : r8
return cg.EmitCall(ILOpCode.Call, cg.CoreMethods.PhpNumber.Pow_long_double);
}
else if (ytype == cg.CoreTypes.PhpNumber)
{
// i8 ** number : number
return cg.EmitCall(ILOpCode.Call, cg.CoreMethods.PhpNumber.Pow_long_number);
}
// y -> PhpValue
cg.EmitConvert(ytype, right.TypeRefMask, cg.CoreTypes.PhpValue);
ytype = cg.CoreTypes.PhpValue;
// i8 ** value : number
return cg.EmitCall(ILOpCode.Call, cg.CoreMethods.PhpNumber.Pow_long_value);
case SpecialType.System_Double:
ytype = cg.EmitConvertNumberToDouble(right); // int|bool|long|number -> double
if (ytype.SpecialType == SpecialType.System_Double)
{
// r8 ** r8 : r8
return cg.EmitCall(ILOpCode.Call, cg.CoreMethods.PhpNumber.Pow_double_double);
}
// y -> PhpValue
cg.EmitConvert(ytype, right.TypeRefMask, cg.CoreTypes.PhpValue);
ytype = cg.CoreTypes.PhpValue;
// r8 ** value : r8
return cg.EmitCall(ILOpCode.Call, cg.CoreMethods.PhpNumber.Pow_double_value);
default:
if (xtype == cg.CoreTypes.PhpNumber)
{
ytype = cg.EmitConvertIntToLong(cg.Emit(right)); // int|bool -> long
if (ytype == cg.CoreTypes.Double)
{
// number ** r8 : r8
return cg.EmitCall(ILOpCode.Call, cg.CoreMethods.PhpNumber.Pow_number_double);
}
if (ytype.SpecialType == SpecialType.System_Int64)
{
// y -> number
ytype = cg.EmitCall(ILOpCode.Call, cg.CoreMethods.PhpNumber.Create_Long);
}
if (ytype == cg.CoreTypes.PhpNumber)
{
// number ** number : number
return cg.EmitCall(ILOpCode.Call, cg.CoreMethods.PhpNumber.Pow_number_number);
}
// y -> PhpValue
ytype = cg.EmitConvertToPhpValue(ytype, right.TypeRefMask);
// number ** value : number
return cg.EmitCall(ILOpCode.Call, cg.CoreMethods.PhpNumber.Pow_number_value);
}
// x -> PhpValue
xtype = cg.EmitConvertToPhpValue(xtype, xtype_hint);
cg.EmitConvert(right, cg.CoreTypes.PhpValue);
ytype = cg.CoreTypes.PhpValue;
// value ** value : number
return cg.EmitCall(ILOpCode.Call, cg.CoreMethods.PhpNumber.Pow_value_value);
}
}
public void Analyze(SyntaxNode node)
{
// do null flow analysis
var flowAnalzyer = new FlowAnalyzer<NullFlowState>(this.context.SemanticModel, new NullFlowState(this.context.SemanticModel));
this.flowAnalysis = flowAnalzyer.Analyze(node);
// check assignments and dereferences and report diagnostics
this.Visit(node);
}