//Initialized a new CodeGenerator for generation of SourceGeneratorSymbol (state machine's next method)
private void GenerateStateMachinesNextMethod(CodeGenerator cg, Microsoft.CodeAnalysis.CodeGen.ILBuilder _il, SourceGeneratorSymbol genSymbol)
{
// TODO: get correct ThisPlace, ReturnType etc. resolution & binding out of the box without GN_SGS hacks
// using SourceGeneratorSymbol
//Refactor parameters references to proper fields
using (var stateMachineNextCg = new CodeGenerator(
_il, cg.Module, cg.Diagnostics,
cg.DeclaringCompilation.Options.OptimizationLevel,
cg.EmitPdbSequencePoints,
this.ContainingType,
contextPlace: new ParamPlace(genSymbol.ContextParameter),
thisPlace: new ParamPlace(genSymbol.ThisParameter),
routine: this,
locals: new ParamPlace(genSymbol.LocalsParameter),
localsInitialized: true,
tempLocals: new ParamPlace(genSymbol.TmpLocalsParameter)
)
{
GeneratorStateMachineMethod = genSymbol, // Pass SourceGeneratorSymbol to CG for additional yield and StartBlock emit
})
{
stateMachineNextCg.GenerateScope(this.ControlFlowGraph.Start, int.MaxValue);
}
}
private void InitializeParametersForGeneratorMethod(CodeGenerator cg, Microsoft.CodeAnalysis.CodeGen.ILBuilder il, Microsoft.CodeAnalysis.CodeGen.LocalDefinition generatorsLocals)
{
// Emit init of unoptimized BoundParameters using separate CodeGenerator that has locals place pointing to our generator's locals array
using (var localsArrayCg = new CodeGenerator(
il, cg.Module, cg.Diagnostics,
cg.DeclaringCompilation.Options.OptimizationLevel,
cg.EmitPdbSequencePoints,
this.ContainingType,
contextPlace: null,
thisPlace: null,
routine: this, // needed to support static variables (they need enclosing routine while binding)
locals: new LocalPlace(generatorsLocals),
localsInitialized: false
))
{
// EmitInit (for UnoptimizedLocals) copies arguments to locals array, does nothing for normal variables, handles local statics, global variables ...
LocalsTable.Variables.ForEach(v => v.EmitInit(localsArrayCg));
}
}
//Initialized a new CodeGenerator for generation of SourceGeneratorSymbol (state machine's next method)
private void generateStateMachinesNextMethod(CodeGenerator cg, Microsoft.CodeAnalysis.CodeGen.ILBuilder _il, SourceGeneratorSymbol genSymbol)
{
// TODO: Pass SourceGeneratorSymbol to CG instead of this to get correct ThisPlace, ReturnType etc. resolution & binding out of the box without GN_SGS hacks
// ..can't do that easily beacuse CodeGenerator accepts only SourceRoutineSymbol and SGS derives from SynthesizedMethodSymbol (shim over too general MethodSymbol)
//Refactor parameters references to proper fields
using (var stateMachineNextCg = new CodeGenerator(
_il, cg.Module, cg.Diagnostics,
cg.DeclaringCompilation.Options.OptimizationLevel,
cg.EmitPdbSequencePoints,
this.ContainingType,
contextPlace: new ParamPlace(genSymbol.Parameters[0]),
thisPlace: new ParamPlace(genSymbol.Parameters[1]),
routine: this,
locals: new ParamPlace(genSymbol.Parameters[2]),
localsInitialized: true
))
{
stateMachineNextCg.GenerateScope(this.ControlFlowGraph.Start, int.MaxValue);
}
}
