/// <summary>
/// Generates a submission initialization part of a Script type constructor that represents an interactive submission.
/// </summary>
/// <remarks>
/// The constructor takes a parameter of type StarkPlatform.Compiler.Scripting.Session - the session reference.
/// It adds the object being constructed into the session by calling Microsoft.Stark.RuntimeHelpers.SessionHelpers.SetSubmission,
/// and retrieves strongly typed references on all previous submission script classes whose members are referenced by this submission.
/// The references are stored to fields of the submission (<paramref name="synthesizedFields"/>).
/// </remarks>
private static void MakeSubmissionInitialization(
ArrayBuilder <BoundStatement> statements,
SyntaxNode syntax,
MethodSymbol submissionConstructor,
SynthesizedSubmissionFields synthesizedFields,
CSharpCompilation compilation)
{
Debug.Assert(submissionConstructor.ParameterCount == 1);
var submissionArrayReference = new BoundParameter(syntax, submissionConstructor.Parameters[0])
{
WasCompilerGenerated = true
};
var intType = compilation.GetSpecialType(SpecialType.System_Int32);
var objectType = compilation.GetSpecialType(SpecialType.System_Object);
var thisReference = new BoundThisReference(syntax, submissionConstructor.ContainingType)
{
WasCompilerGenerated = true
};
var slotIndex = compilation.GetSubmissionSlotIndex();
Debug.Assert(slotIndex >= 0);
// <submission_array>[<slot_index] = this;
statements.Add(new BoundExpressionStatement(syntax,
new BoundAssignmentOperator(syntax,
new BoundArrayAccess(syntax,
submissionArrayReference,
new BoundLiteral(syntax, ConstantValue.Create(slotIndex), intType)
{
WasCompilerGenerated = true
},
objectType)
{
WasCompilerGenerated = true
},
thisReference,
false,
thisReference.Type)
{
WasCompilerGenerated = true
})
{
WasCompilerGenerated = true
});
var hostObjectField = synthesizedFields.GetHostObjectField();
if ((object)hostObjectField != null)
{
// <host_object> = (<host_object_type>)<submission_array>[0]
statements.Add(
new BoundExpressionStatement(syntax,
new BoundAssignmentOperator(syntax,
new BoundFieldAccess(syntax, thisReference, hostObjectField, ConstantValue.NotAvailable)
{
WasCompilerGenerated = true
},
BoundConversion.Synthesized(syntax,
new BoundArrayAccess(syntax,
submissionArrayReference,
new BoundLiteral(syntax, ConstantValue.Create(0), intType)
{
WasCompilerGenerated = true
},
objectType),
Conversion.ExplicitReference,
false,
explicitCastInCode: true,
conversionGroupOpt: null,
ConstantValue.NotAvailable,
hostObjectField.Type.TypeSymbol
),
hostObjectField.Type.TypeSymbol)
{
WasCompilerGenerated = true
})
{
WasCompilerGenerated = true
});
}
foreach (var field in synthesizedFields.FieldSymbols)
{
var targetScriptType = (ImplicitNamedTypeSymbol)field.Type.TypeSymbol;
var targetSubmissionIndex = targetScriptType.DeclaringCompilation.GetSubmissionSlotIndex();
Debug.Assert(targetSubmissionIndex >= 0);
// this.<field> = (<target_script_type>)<submission_array>[<target_submission_index>];
statements.Add(
new BoundExpressionStatement(syntax,
new BoundAssignmentOperator(syntax,
new BoundFieldAccess(syntax, thisReference, field, ConstantValue.NotAvailable)
{
WasCompilerGenerated = true
},
BoundConversion.Synthesized(syntax,
new BoundArrayAccess(syntax,
submissionArrayReference,
new BoundLiteral(syntax, ConstantValue.Create(targetSubmissionIndex), intType)
{
WasCompilerGenerated = true
},
objectType)
{
WasCompilerGenerated = true
},
Conversion.ExplicitReference,
false,
explicitCastInCode: true,
conversionGroupOpt: null,
ConstantValue.NotAvailable,
targetScriptType
),
targetScriptType
)
{
WasCompilerGenerated = true
})
{
WasCompilerGenerated = true
});
}
}
