internal static string MakeTemporaryName(TempKind kind, int uniqueId)
{
Debug.Assert((int)kind >= 0); // Negative kinds should not be named.
// Matches names generated by Dev11.
return(string.Format(TemporaryNamePrefix + "{0}${1:0000}", (int)kind, uniqueId));
}
internal SynthesizedLocal(
MethodSymbol containingMethod,
TypeSymbol type,
string name = null,
CSharpSyntaxNode syntax = null,
bool isPinned = false,
RefKind refKind = RefKind.None,
LocalDeclarationKind declarationKind = LocalDeclarationKind.CompilerGenerated,
TempKind tempKind = TempKind.None)
{
this.containingMethod = containingMethod;
Debug.Assert(type.SpecialType != SpecialType.System_Void);
Debug.Assert((tempKind == TempKind.None) == (syntax == null));
#if NAME_TEMPS
if (string.IsNullOrEmpty(name))
{
name = "temp_" + Interlocked.Increment(ref nextDebugTempNumber);
}
#endif
this.name = name;
this.type = type;
this.syntax = syntax;
this.isPinned = isPinned;
this.declarationKind = declarationKind;
this.refKind = refKind;
this.tempKind = tempKind;
}
private void AddLocal(TempKind tempKind)
{
var info = this.localInfo[this.slotIndex];
// We do not emit custom modifiers on locals so ignore the
// previous version of the local if it had custom modifiers.
if (info.CustomModifiers.IsDefaultOrEmpty)
{
var constraints = GetConstraints(info);
var local = new EncLocalInfo(this.offset, (Cci.ITypeReference)info.Type, constraints, (int)tempKind);
this.locals.Add(local, this.slotIndex);
}
this.slotIndex++;
}
internal static bool TryParseTemporaryName(string name, out TempKind kind, out int uniqueId)
{
if (name.StartsWith(TemporaryNamePrefix, StringComparison.Ordinal))
{
name = name.Substring(TemporaryNamePrefix.Length);
int separator = name.IndexOf('$');
if (separator > 0)
{
int k;
int n;
if (int.TryParse(name.Substring(0, separator), out k) && int.TryParse(name.Substring(separator + 1), out n))
{
kind = (TempKind)k;
uniqueId = n;
return(true);
}
}
}
kind = TempKind.None;
uniqueId = 0;
return(false);
}
internal SynthesizedLocal(
MethodSymbol containingMethod,
TypeSymbol type,
string name = null,
CSharpSyntaxNode syntax = null,
bool isPinned = false,
RefKind refKind = RefKind.None,
LocalDeclarationKind declarationKind = LocalDeclarationKind.CompilerGenerated,
TempKind tempKind = TempKind.None)
{
this.containingMethod = containingMethod;
Debug.Assert(type.SpecialType != SpecialType.System_Void);
Debug.Assert((tempKind == TempKind.None) == (syntax == null));
#if NAME_TEMPS
if (string.IsNullOrEmpty(name)) name = "temp_" + Interlocked.Increment(ref nextDebugTempNumber);
#endif
this.name = name;
this.type = type;
this.syntax = syntax;
this.isPinned = isPinned;
this.declarationKind = declarationKind;
this.refKind = refKind;
this.tempKind = tempKind;
}
public LocalSymbol SynthesizedLocal(TypeSymbol type, string name = null, CSharpSyntaxNode syntax = null, bool isPinned = false, RefKind refKind = RefKind.None, TempKind tempKind = TempKind.None)
{
return new SynthesizedLocal(CurrentMethod, type, name, syntax, isPinned: isPinned, refKind: refKind, tempKind: tempKind);
}
/// <summary>
/// Takes an expression and returns the bound local expression "temp"
/// and the bound assignment expression "temp = expr".
/// </summary>
public BoundLocal StoreToTemp(BoundExpression argument, out BoundAssignmentOperator store, RefKind refKind = RefKind.None, TempKind tempKind = TempKind.None)
{
MethodSymbol containingMethod = this.CurrentMethod;
var syntax = argument.Syntax;
var type = argument.Type;
var local = new BoundLocal(
syntax,
new SynthesizedLocal(containingMethod, type, syntax: (tempKind == TempKind.None) ? null : syntax, refKind: refKind, tempKind: tempKind),
null,
type);
store = new BoundAssignmentOperator(
syntax,
local,
argument,
refKind,
type);
return local;
}
public LocalName(string name, TempKind kind, int uniqueId)
{
this.Name = name;
this.Kind = kind;
this.UniqueId = uniqueId;
}
internal static bool TryParseTemporaryName(string name, out TempKind kind, out int uniqueId)
{
if (name.StartsWith(TemporaryNamePrefix, StringComparison.Ordinal))
{
name = name.Substring(TemporaryNamePrefix.Length);
int separator = name.IndexOf('$');
if (separator > 0)
{
int k;
int n;
if (int.TryParse(name.Substring(0, separator), out k) && int.TryParse(name.Substring(separator + 1), out n))
{
kind = (TempKind)k;
uniqueId = n;
return true;
}
}
}
kind = TempKind.None;
uniqueId = 0;
return false;
}
internal static string MakeTemporaryName(TempKind kind, int uniqueId)
{
Debug.Assert((int)kind >= 0); // Negative kinds should not be named.
// Matches names generated by Dev11.
return string.Format(TemporaryNamePrefix + "{0}${1:0000}", (int)kind, uniqueId);
}
public LocalName(string name, TempKind kind, int uniqueId)
{
this.Name = name;
this.Kind = kind;
this.UniqueId = uniqueId;
}
private void AddLocal(TempKind tempKind)
{
var info = this.localInfo[this.slotIndex];
// We do not emit custom modifiers on locals so ignore the
// previous version of the local if it had custom modifiers.
if (info.CustomModifiers.IsDefaultOrEmpty)
{
var constraints = GetConstraints(info);
var local = new EncLocalInfo(this.offset, (Cci.ITypeReference)info.Type, constraints, (int)tempKind);
this.locals.Add(local, this.slotIndex);
}
this.slotIndex++;
}
public LocalSymbol SynthesizedLocal(TypeSymbol type, string name = null, CSharpSyntaxNode syntax = null, bool isPinned = false, RefKind refKind = RefKind.None, TempKind tempKind = TempKind.None)
{
return(new SynthesizedLocal(CurrentMethod, type, name, syntax, isPinned: isPinned, refKind: refKind, tempKind: tempKind));
}
/// <summary>
/// Takes an expression and returns the bound local expression "temp"
/// and the bound assignment expression "temp = expr".
/// </summary>
public BoundLocal StoreToTemp(BoundExpression argument, out BoundAssignmentOperator store, RefKind refKind = RefKind.None, TempKind tempKind = TempKind.None)
{
MethodSymbol containingMethod = this.CurrentMethod;
var syntax = argument.Syntax;
var type = argument.Type;
var local = new BoundLocal(
syntax,
new SynthesizedLocal(containingMethod, type, syntax: (tempKind == TempKind.None) ? null : syntax, refKind: refKind, tempKind: tempKind),
null,
type);
store = new BoundAssignmentOperator(
syntax,
local,
argument,
refKind,
type);
return(local);
}
