/// <summary>
/// Emit load of variable named <paramref name="varName"/>.
/// </summary>
internal static PhpTypeCode EmitLoad(CodeGenerator codeGenerator, VariableName varName)
{
ILEmitter il = codeGenerator.IL;
// Check if the variable is auto-global
if (codeGenerator.VariableIsAutoGlobal(varName))
{
codeGenerator.EmitAutoGlobalLoad(varName);
return PhpTypeCode.Object;
}
// Variable is local
if (codeGenerator.OptimizedLocals)
{
// Template:
// ldloc loc
// ***** // If the specidied variable is of type PhpReference
// ldfld PhpReference.value
// *****
VariablesTable.Entry entry = codeGenerator.CurrentVariablesTable[varName];
entry.Variable.EmitLoad(il);
if (entry.IsPhpReference)
il.Emit(OpCodes.Ldfld, Fields.PhpReference_Value);
return PhpTypeCode.Object;
}
// LOAD Operators.GetVariable[Unchecked](<script context>, <local variable table>, <name>);
codeGenerator.EmitLoadScriptContext();
codeGenerator.EmitLoadRTVariablesTable();
il.Emit(OpCodes.Ldstr, varName.Value);
if (codeGenerator.ChainBuilder.QuietRead)
il.Emit(OpCodes.Call, Methods.Operators.GetVariableUnchecked);
else
il.Emit(OpCodes.Call, Methods.Operators.GetVariable);
return PhpTypeCode.Object;
}