public BoundExpression GetOrCreateBoundExpression(IBindingContext binder, BoundExpressionOptions options)
{
Require.NotNull(binder, "binder");
Require.NotNull(options, "options");
var key = new CacheKey(
_dynamicExpression.ParseResult.Identifiers,
!DynamicExpression.IsLanguageCaseSensitive(_dynamicExpression.Language),
binder,
options
);
lock (_syncRoot)
{
if (!_cache.TryGetValue(key, out var boundExpression))
{
boundExpression = new BoundExpression(
_dynamicExpression,
key.OwnerType,
key.Imports,
key.IdentifierTypes,
key.Options
);
_cache.Add(key, boundExpression);
}
return(boundExpression);
}
}
public BoundExpression GetOrCreateBoundExpression(IBindingContext binder, BoundExpressionOptions options)
{
Require.NotNull(binder, "binder");
Require.NotNull(options, "options");
var key = new CacheKey(
_dynamicExpression.ParseResult.Identifiers,
!DynamicExpression.IsLanguageCaseSensitive(_dynamicExpression.Language),
binder,
options
);
lock (_syncRoot)
{
BoundExpression boundExpression;
if (!_cache.TryGetValue(key, out boundExpression))
{
boundExpression = new BoundExpression(
_dynamicExpression,
key.OwnerType,
key.Imports,
key.IdentifierTypes,
key.Options
);
_cache.Add(key, boundExpression);
}
return boundExpression;
}
}
public CacheKey(IdentifierCollection identifiers, bool ignoreCase, IBindingContext bindingContext, BoundExpressionOptions options)
{
Options = options;
OwnerType = bindingContext.OwnerType;
var imports = bindingContext.Imports;
Imports = new Import[imports == null ? 0 : imports.Count];
if (Imports.Length > 0)
{
imports.CopyTo(Imports, 0);
}
IdentifierTypes = new Type[identifiers.Count];
for (int i = 0; i < identifiers.Count; i++)
{
IdentifierTypes[i] = bindingContext.GetVariableType(
identifiers[i].Name,
ignoreCase
);
}
}
/// <summary>
/// Invokes the expression with the specified expression context and
/// binding options.
/// </summary>
/// <param name="expressionContext">The expression context used to
/// bind and execute the expression.</param>
/// <param name="options">The options used to bind the expression.</param>
/// <returns>The result of the expression.</returns>
public object Invoke(IExpressionContext expressionContext, BoundExpressionOptions options)
{
if (expressionContext == null)
{
expressionContext = new ExpressionContext();
}
return(Bind(expressionContext, options).Invoke(expressionContext));
}
internal BoundExpressionOptions(BoundExpressionOptions other)
{
Require.NotNull(other, "other");
AllowPrivateAccess = other.AllowPrivateAccess;
Checked = other.Checked;
ResultType = other.ResultType;
RestrictedSkipVisibility = other.RestrictedSkipVisibility;
}
internal BoundExpressionOptions(BoundExpressionOptions other)
{
Require.NotNull(other, "other");
AllowPrivateAccess = other.AllowPrivateAccess;
Checked = other.Checked;
ResultType = other.ResultType;
RestrictedSkipVisibility = other.RestrictedSkipVisibility;
}
/// <summary>
/// Binds the compiled expression with the specified binding context and options.
/// </summary>
/// <param name="binder">The binding context used to bind the expression.</param>
/// <param name="options">The options used to bind the expression.</param>
/// <returns>The bound expression.</returns>
public IBoundExpression Bind(IBindingContext binder, BoundExpressionOptions options)
{
if (binder == null)
{
binder = new ExpressionContext();
}
if (options == null)
{
options = new BoundExpressionOptions();
}
options.Freeze();
return(Cached.GetOrCreateBoundExpression(binder, options));
}
private DynamicSignature CompileExpression(IExpression expression, Type ownerType, Import[] imports, Type[] identifierTypes, BoundExpressionOptions options, Resolver resolver)
{
var method = new DynamicMethod(
"DynamicMethod",
typeof(object),
new[] { typeof(object[]) },
options.RestrictedSkipVisibility
);
var il = method.GetILGenerator();
new Compiler(il, resolver).Compile(expression);
#if DEBUG
//WriteToDisk(expression, resolver);
#endif
return (DynamicSignature)method.CreateDelegate(typeof(DynamicSignature));
}
internal BoundExpression(CachedDynamicExpression dynamicExpression, Type ownerType, Import[] imports, Type[] identifierTypes, BoundExpressionOptions options)
{
Require.NotNull(dynamicExpression, "dynamicExpression");
Require.NotNull(imports, "imports");
Require.NotNull(identifierTypes, "identifierTypes");
_dynamicExpression = dynamicExpression;
_parameterMap = BuildParameterMap(ownerType, identifierTypes);
var resolver = new Resolver(_dynamicExpression, ownerType, imports, identifierTypes, _parameterMap, options);
var resolvedTree = resolver.Resolve(_dynamicExpression.ParseResult.RootNode);
#if DEBUG
ResolvedExpression = resolvedTree;
#endif
_compiledMethod = CompileExpression(resolvedTree, ownerType, imports, identifierTypes, options, resolver);
}
public Resolver(CachedDynamicExpression dynamicExpression, Type ownerType, Import[] imports, Type[] identifierTypes, int[] parameterMap, BoundExpressionOptions options)
{
Require.NotNull(dynamicExpression, "dynamicExpression");
Require.NotNull(imports, "imports");
Require.NotNull(identifierTypes, "identifierTypes");
Require.NotNull(parameterMap, "parameterMap");
DynamicExpression = dynamicExpression;
OwnerType = ownerType;
Imports = imports;
IdentifierTypes = identifierTypes;
Options = options;
// Inverse the parameter map.
IdentifierIndexes = new int[IdentifierTypes.Length];
for (int i = 0; i < IdentifierTypes.Length; i++)
{
IdentifierIndexes[i] = -1;
if (IdentifierTypes[i] != null)
{
for (int j = 0; j < parameterMap.Length; j++)
{
if (parameterMap[j] == i)
{
IdentifierIndexes[i] = j;
break;
}
}
Debug.Assert(IdentifierIndexes[i] != -1);
}
}
IgnoreCase = !global::Expressions.DynamicExpression.IsLanguageCaseSensitive(DynamicExpression.Language);
}
public Resolver(CachedDynamicExpression dynamicExpression, Type ownerType, Import[] imports, Type[] identifierTypes, int[] parameterMap, BoundExpressionOptions options)
{
Require.NotNull(dynamicExpression, "dynamicExpression");
Require.NotNull(imports, "imports");
Require.NotNull(identifierTypes, "identifierTypes");
Require.NotNull(parameterMap, "parameterMap");
DynamicExpression = dynamicExpression;
OwnerType = ownerType;
Imports = imports;
IdentifierTypes = identifierTypes;
Options = options;
// Inverse the parameter map.
IdentifierIndexes = new int[IdentifierTypes.Length];
for (int i = 0; i < IdentifierTypes.Length; i++)
{
IdentifierIndexes[i] = -1;
if (IdentifierTypes[i] != null)
{
for (int j = 0; j < parameterMap.Length; j++)
{
if (parameterMap[j] == i)
{
IdentifierIndexes[i] = j;
break;
}
}
Debug.Assert(IdentifierIndexes[i] != -1);
}
}
IgnoreCase = !global::Expressions.DynamicExpression.IsLanguageCaseSensitive(DynamicExpression.Language);
}
public CacheKey(IdentifierCollection identifiers, bool ignoreCase, IBindingContext bindingContext, BoundExpressionOptions options)
{
Options = options;
OwnerType = bindingContext.OwnerType;
var imports = bindingContext.Imports;
Imports = new Import[imports == null ? 0 : imports.Count];
if (Imports.Length > 0)
imports.CopyTo(Imports, 0);
IdentifierTypes = new Type[identifiers.Count];
for (int i = 0; i < identifiers.Count; i++)
{
IdentifierTypes[i] = bindingContext.GetVariableType(
identifiers[i].Name,
ignoreCase
);
}
}
/// <summary>
/// Invokes the expression with the specified expression context and
/// binding options.
/// </summary>
/// <param name="expressionContext">The expression context used to
/// bind and execute the expression.</param>
/// <param name="options">The options used to bind the expression.</param>
/// <returns>The result of the expression.</returns>
public object Invoke(IExpressionContext expressionContext, BoundExpressionOptions options)
{
var boundExpression = Bind(expressionContext ?? new ExpressionContext(), options);
return(boundExpression.Invoke(expressionContext));
}
/// <summary>
/// Binds the compiled expression with the specified binding context and options.
/// </summary>
/// <param name="binder">The binding context used to bind the expression.</param>
/// <param name="options">The options used to bind the expression.</param>
/// <returns>The bound expression.</returns>
public IBoundExpression Bind(IBindingContext binder, BoundExpressionOptions options)
{
if (binder == null)
binder = new ExpressionContext();
if (options == null)
options = new BoundExpressionOptions();
options.Freeze();
return Cached.GetOrCreateBoundExpression(binder, options);
}
private DynamicSignature CompileExpression(IExpression expression, Type ownerType, Import[] imports, Type[] identifierTypes, BoundExpressionOptions options, Resolver resolver)
{
var method = new DynamicMethod(
"DynamicMethod",
typeof(object),
new[] { typeof(object[]) },
options.RestrictedSkipVisibility
);
var il = method.GetILGenerator();
new Compiler(il, resolver).Compile(expression);
#if DEBUG
//WriteToDisk(expression, resolver);
#endif
return((DynamicSignature)method.CreateDelegate(typeof(DynamicSignature)));
}
internal BoundExpression(CachedDynamicExpression dynamicExpression, Type ownerType, Import[] imports, Type[] identifierTypes, BoundExpressionOptions options)
{
Require.NotNull(dynamicExpression, "dynamicExpression");
Require.NotNull(imports, "imports");
Require.NotNull(identifierTypes, "identifierTypes");
_dynamicExpression = dynamicExpression;
_parameterMap = BuildParameterMap(ownerType, identifierTypes);
var resolver = new Resolver(_dynamicExpression, ownerType, imports, identifierTypes, _parameterMap, options);
var resolvedTree = resolver.Resolve(_dynamicExpression.ParseResult.RootNode);
#if DEBUG
ResolvedExpression = resolvedTree;
#endif
_compiledMethod = CompileExpression(resolvedTree, ownerType, imports, identifierTypes, options, resolver);
}
public BoundExpression GetOrCreateBoundExpression(IBindingContext binder, BoundExpressionOptions options)
{
return(_boundExpressionCache.GetOrCreateBoundExpression(binder, options));
}
/// <summary>
/// Invokes the expression with the specified expression context and
/// binding options.
/// </summary>
/// <param name="expressionContext">The expression context used to
/// bind and execute the expression.</param>
/// <param name="options">The options used to bind the expression.</param>
/// <returns>The result of the expression.</returns>
public object Invoke(IExpressionContext expressionContext, BoundExpressionOptions options)
{
if (expressionContext == null)
expressionContext = new ExpressionContext();
return Bind(expressionContext, options).Invoke(expressionContext);
}
private Func <object[], object> CompileExpression(IExpression expression, Type ownerType, Import[] imports, Type[] identifierTypes, BoundExpressionOptions options, Resolver resolver)
{
var method = new DynamicMethod(
"DynamicMethod",
typeof(object),
new[] { typeof(object) },
typeof(BoundExpression).Module,
options.RestrictedSkipVisibility
);
var generator = method.GetILGenerator();
new Compiler(generator, resolver).Compile(expression);
return((Func <object[], object>)method.CreateDelegate(typeof(Func <object[], object>)));
}
public BoundExpression GetOrCreateBoundExpression(IBindingContext binder, BoundExpressionOptions options)
{
return _boundExpressionCache.GetOrCreateBoundExpression(binder, options);
}