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Copy pathJavascriptFormatter.cs
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1400 lines (1163 loc) · 44.7 KB
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using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;
using ICSharpCode.Decompiler.ILAst;
using JSIL.Ast;
using JSIL.Internal;
using JSIL.Translator;
using Mono.Cecil;
using System.Globalization;
using JSIL;
namespace JSIL.Internal {
public enum ListValueType {
Primitive,
Identifier,
Raw,
TypeReference,
TypeIdentifier
}
public class TypeReferenceContext {
private struct _State {
public bool EnclosingTypeSkipped;
public TypeReference EnclosingType;
public TypeReference DefiningType;
public MethodReference EnclosingMethod;
public MethodReference DefiningMethod;
public MethodReference InvokingMethod;
public MethodReference SignatureMethod;
public MethodReference AttributesMethod;
}
private readonly Stack<_State> Stack = new Stack<_State>();
private _State State;
public void Push () {
Stack.Push(State);
}
public void Pop () {
State = Stack.Pop();
}
public TypeReference EnclosingType {
get {
return State.EnclosingType;
}
set {
State.EnclosingTypeSkipped = false;
State.EnclosingType = value;
}
}
public bool EnclosingTypeSkipped
{
get
{
return State.EnclosingTypeSkipped;
}
set
{
State.EnclosingTypeSkipped = value;
}
}
public TypeReference DefiningType {
get {
return State.DefiningType;
}
set {
State.DefiningType = value;
}
}
public MethodReference EnclosingMethod {
get {
return State.EnclosingMethod;
}
set {
State.EnclosingMethod = value;
}
}
public MethodReference DefiningMethod {
get {
return State.DefiningMethod;
}
set {
State.DefiningMethod = value;
}
}
public MethodReference InvokingMethod {
get {
return State.InvokingMethod;
}
set {
State.InvokingMethod = value;
}
}
public MethodReference SignatureMethod {
get {
return State.SignatureMethod;
}
set {
State.SignatureMethod = value;
}
}
public MethodReference AttributesMethod {
get {
return State.AttributesMethod;
}
set {
State.AttributesMethod = value;
}
}
public TypeReference EnclosingMethodType {
get {
if (EnclosingMethod != null)
return EnclosingMethod.DeclaringType;
else
return null;
}
}
public TypeReference DefiningMethodType {
get {
if (DefiningMethod != null)
return DefiningMethod.DeclaringType;
else
return null;
}
}
public TypeReference InvokingMethodType {
get {
if (InvokingMethod != null)
return InvokingMethod.DeclaringType;
else
return null;
}
}
public TypeReference SignatureMethodType {
get {
if (SignatureMethod != null)
return SignatureMethod.DeclaringType;
else
return null;
}
}
public TypeReference AttributesMethodType {
get {
if (AttributesMethod != null)
return AttributesMethod.DeclaringType;
else
return null;
}
}
}
public class JavascriptFormatter {
public readonly PositionInfoTextWriter OutputWithPositionInfo;
public readonly TextWriter Output;
public readonly AssemblyManifest Manifest;
public readonly ITypeInfoSource TypeInfo;
public readonly AssemblyDefinition Assembly;
public readonly AssemblyManifest.Token PrivateToken;
public readonly Configuration Configuration;
public readonly SourceMapBuilder SourceMapBuilder;
public MethodReference CurrentMethod = null;
protected readonly HashSet<string> DeclaredNamespaces = new HashSet<string>();
protected readonly bool Stubbed;
protected readonly string AssemblyDeclarationReplacement;
protected uint _IndentLevel = 0;
protected bool _IndentNeeded = false;
protected readonly static HashSet<string> CorlibTypes = new HashSet<string> {
"System.Byte", "System.UInt16", "System.UInt32", "System.UInt64",
"System.SByte", "System.Int16", "System.Int32", "System.Int64",
"System.Single", "System.Double", "System.String", "System.Object",
"System.Boolean", "System.Char", "System.IntPtr", "System.UIntPtr"
};
public JavascriptFormatter (
TextWriter output, SourceMapBuilder sourceMapBuilder, ITypeInfoSource typeInfo,
AssemblyManifest manifest, AssemblyDefinition assembly,
Configuration configuration,
string assemblyDeclarationReplacement,
bool stubbed
) {
if (sourceMapBuilder != null)
{
OutputWithPositionInfo = new PositionInfoTextWriter(output);
Output = OutputWithPositionInfo;
}
else
{
Output = output;
}
SourceMapBuilder = sourceMapBuilder;
TypeInfo = typeInfo;
Manifest = manifest;
Assembly = assembly;
Configuration = configuration;
Stubbed = stubbed;
AssemblyDeclarationReplacement = assemblyDeclarationReplacement;
PrivateToken = Manifest.GetPrivateToken(assembly);
Manifest.AssignIdentifiers();
}
public bool PreviousWasLineBreak {
get {
return _IndentNeeded;
}
}
protected void WriteToken (AssemblyManifest.Token token) {
if (Stubbed && Configuration.GenerateSkeletonsForStubbedAssemblies.GetValueOrDefault(false)) {
int id = int.Parse(token.IDString.Replace("$asm", ""), NumberStyles.HexNumber);
WriteRaw("${1}[{0}]", id, Configuration.AssemblyCollectionName ?? "asms");
} else {
WriteRaw(token.IDString);
}
}
public void AssemblyReference (AssemblyDefinition assembly) {
string key = assembly.FullName;
var token = Manifest.GetPrivateToken(key);
Manifest.AssignIdentifiers();
WriteToken(token);
}
public void AssemblyReference (TypeReference type) {
string key = GetContainingAssemblyName(type);
var token = Manifest.GetPrivateToken(key);
Manifest.AssignIdentifiers();
WriteToken(token);
}
public void Indent () {
_IndentLevel += 1;
}
public void Unindent () {
if (_IndentLevel == 0)
throw new InvalidOperationException("Indent level is already 0");
_IndentLevel -= 1;
}
public void NewLine () {
Output.Write(Environment.NewLine);
_IndentNeeded = true;
}
protected void WriteIndentIfNeeded () {
if (!_IndentNeeded)
return;
_IndentNeeded = false;
var tabs = _IndentLevel;
for (var i = 0; i < tabs; i++)
Output.Write(" ");
}
public void WriteRaw (string characters) {
WriteIndentIfNeeded();
Output.Write(characters);
}
public void WriteRaw (string format, params object[] arguments) {
WriteIndentIfNeeded();
if (arguments == null)
Output.Write(format);
else
Output.Write(String.Format(format, arguments));
}
public void LPar () {
WriteRaw("(");
Indent();
}
public void RPar () {
Unindent();
WriteRaw(")");
}
public void Space () {
WriteRaw(" ");
}
public void Comma () {
WriteRaw(", ");
}
protected void CommaSeparatedListCore<T> (IEnumerable<T> _values, Action<T> writeValue, int lineSizeLimit = 2) {
var values = _values.ToArray();
var indentIt = values.Length > lineSizeLimit;
if (indentIt) {
Indent();
NewLine();
}
int i = 0;
foreach (var value in values) {
if (i > 0) {
Comma();
if (indentIt && (i % lineSizeLimit) == 0)
NewLine();
}
writeValue(value);
i++;
}
if (indentIt) {
Unindent();
NewLine();
}
}
public void CommaSeparatedList (IEnumerable<object> values, TypeReferenceContext context, ListValueType valueType = ListValueType.Primitive) {
CommaSeparatedListCore(
values, (value) => {
if (valueType == ListValueType.Primitive)
Value(value as dynamic);
else if (valueType == ListValueType.Identifier)
Identifier(value as dynamic, context);
else if (valueType == ListValueType.TypeIdentifier)
TypeIdentifier(value as dynamic, context, false);
else if (valueType == ListValueType.TypeReference)
TypeReference((TypeReference)value, context);
else
WriteRaw(value.ToString());
},
((valueType == ListValueType.TypeIdentifier) || (valueType == ListValueType.TypeReference)) ?
2 : 4
);
}
public void CommaSeparatedList (IEnumerable<TypeReference> types, TypeReferenceContext context) {
CommaSeparatedListCore(
types, (type) => TypeReference(type, context)
);
}
public void OpenBracket (bool indent = false) {
WriteRaw("[");
if (indent) {
Indent();
NewLine();
}
}
public void CloseBracket (bool indent = false, Action newline = null) {
if (indent) {
Unindent();
NewLine();
}
WriteRaw("]");
if (indent) {
if (newline != null)
newline();
else
NewLine();
}
}
public void OpenBrace () {
WriteRaw("{");
Indent();
NewLine();
}
public void CloseBrace (bool newLine = true) {
Unindent();
WriteRaw("}");
if (newLine)
NewLine();
}
public void CloseAndReopenBrace (Action<JavascriptFormatter> midtext) {
Unindent();
WriteRaw("} ");
midtext(this);
WriteRaw(" {");
NewLine();
Indent();
}
public void CloseAndReopenBrace (string midtext) {
Unindent();
WriteRaw("}} {0} {{", midtext);
NewLine();
Indent();
}
public void WriteParameterList (IEnumerable<JSVariable> parameters) {
bool isFirst = true;
foreach (var p in parameters) {
if (!isFirst)
Comma();
if (p.IsReference)
Comment("ref");
Identifier(p.Identifier);
isFirst = false;
}
}
public void OpenFunction (string functionName, Action<JavascriptFormatter> emitParameters) {
WriteRaw("function ");
if (functionName != null) {
WriteRaw(Util.EscapeIdentifier(functionName));
Space();
}
LPar();
if (emitParameters != null)
emitParameters(this);
RPar();
Space();
OpenBrace();
}
public static string GetContainingAssemblyName (TypeReference tr) {
var resolved = tr.Resolve();
IMetadataScope scope;
if (resolved != null)
scope = resolved.Scope;
else
scope = tr.Scope;
switch (scope.MetadataScopeType) {
case MetadataScopeType.AssemblyNameReference:
return ((AssemblyNameReference)scope).FullName;
case MetadataScopeType.ModuleReference:
throw new NotImplementedException("Module references not implemented");
case MetadataScopeType.ModuleDefinition:
var assembly = ((ModuleDefinition)scope).Assembly;
if (assembly != null)
return assembly.FullName;
else
return "<Assembly Not Loaded>";
}
if (resolved != null)
return resolved.Module.Assembly.FullName;
else
return tr.Module.Assembly.FullName;
}
protected void LocalOpenGenericParameter (GenericParameter gp) {
WriteRaw("$.GenericParameter");
LPar();
Value(gp.Name);
RPar();
WriteGenericParameterAttributes(gp);
}
protected void OpenGenericParameter (GenericParameter gp, string context) {
WriteRaw("new");
Space();
WriteRaw("JSIL.GenericParameter", null);
LPar();
Value(gp.Name);
Comma();
Value(context);
RPar();
WriteGenericParameterAttributes(gp);
}
protected void WriteGenericParameterAttributes (GenericParameter gp) {
if ((gp.Attributes & GenericParameterAttributes.Covariant) == GenericParameterAttributes.Covariant)
WriteRaw(".out()");
if ((gp.Attributes & GenericParameterAttributes.Contravariant) == GenericParameterAttributes.Contravariant)
WriteRaw(".in()");
}
protected void TypeReferenceInternal (GenericParameter gp, TypeReferenceContext context) {
var ownerType = gp.Owner as TypeReference;
var ownerMethod = gp.Owner as MethodReference;
if (context != null) {
if (ownerType != null) {
if (TypeUtil.TypesAreAssignable(TypeInfo, ownerType, context.SignatureMethodType)) {
var resolved = JSIL.Internal.MethodSignature.ResolveGenericParameter(gp, context.SignatureMethodType);
if (resolved != null) {
if (resolved != gp) {
context.Push();
context.SignatureMethod = null;
try {
TypeReference(resolved, context);
} finally {
context.Pop();
}
return;
} else {
TypeIdentifier(resolved, context, false);
return;
}
}
}
if (TypeUtil.TypesAreEqual(ownerType, context.EnclosingMethodType)) {
TypeIdentifier(gp, context, false);
return;
}
if (TypeUtil.TypesAreEqual(ownerType, context.EnclosingType)) {
LocalOpenGenericParameter(gp);
return;
}
var ownerTypeResolved = ownerType.Resolve();
if (ownerTypeResolved != null) {
// Is it a generic parameter of a compiler-generated class (i.e. enumerator function, delegate, etc)
// nested inside our EnclosingType? If so, uhhhh, shit.
if (
TypeUtil.TypesAreEqual(context.EnclosingType, ownerTypeResolved.DeclaringType) &&
ownerTypeResolved.CustomAttributes.Any(
(ca) => ca.AttributeType.FullName == "System.Runtime.CompilerServices.CompilerGeneratedAttribute"
)
) {
// FIXME: I HAVE NO IDEA WHAT I AM DOING
OpenGenericParameter(gp, Util.DemangleCecilTypeName(ownerTypeResolved.FullName));
return;
}
}
if (TypeUtil.TypesAreEqual(ownerType, context.AttributesMethodType)) {
LocalOpenGenericParameter(gp);
return;
}
if (TypeUtil.TypesAreEqual(ownerType, context.DefiningMethodType)) {
OpenGenericParameter(gp, Util.DemangleCecilTypeName(context.DefiningMethodType.FullName));
return;
}
if (TypeUtil.TypesAreEqual(ownerType, context.DefiningType)) {
OpenGenericParameter(gp, Util.DemangleCecilTypeName(context.DefiningType.FullName));
return;
}
throw new NotImplementedException(String.Format(
"Unimplemented form of generic type parameter: '{0}'.",
gp
));
} else if (ownerMethod != null) {
Func<MethodReference, int> getPosition = (mr) => {
for (var i = 0; i < mr.GenericParameters.Count; i++)
if (mr.GenericParameters[i].Name == gp.Name)
return i;
throw new NotImplementedException(String.Format(
"Generic parameter '{0}' not found in method '{1}' parameter list",
gp, ownerMethod
));
};
var ownerMethodIdentifier = new QualifiedMemberIdentifier(
new TypeIdentifier(ownerMethod.DeclaringType.Resolve()),
new MemberIdentifier(TypeInfo, ownerMethod)
);
if (ownerMethodIdentifier.Equals(ownerMethod, context.InvokingMethod, TypeInfo)) {
var gim = (GenericInstanceMethod)context.InvokingMethod;
TypeReference(gim.GenericArguments[getPosition(ownerMethod)], context);
return;
}
if (ownerMethodIdentifier.Equals(ownerMethod, context.EnclosingMethod, TypeInfo)) {
Identifier(gp.Name);
return;
}
if (
ownerMethodIdentifier.Equals(ownerMethod, context.DefiningMethod, TypeInfo) ||
ownerMethodIdentifier.Equals(ownerMethod, context.SignatureMethod, TypeInfo)
) {
Value(String.Format("!!{0}", getPosition(ownerMethod)));
return;
}
throw new NotImplementedException(String.Format(
"Unimplemented form of generic method parameter: '{0}'.",
gp
));
}
} else {
throw new NotImplementedException("Cannot resolve generic parameter without a TypeReferenceContext.");
}
throw new NotImplementedException(String.Format(
"Unimplemented form of generic parameter: '{0}'.",
gp
));
}
protected void TypeReferenceInternal (ByReferenceType byref, TypeReferenceContext context) {
WriteRaw("$jsilcore");
Dot();
WriteRaw("TypeRef");
LPar();
Value("JSIL.Reference");
Comma();
OpenBracket(false);
TypeReference(byref.ElementType, context);
CloseBracket(false);
RPar();
}
protected void TypeReferenceInternal (PointerType pt, TypeReferenceContext context) {
WriteRaw("$jsilcore");
Dot();
WriteRaw("TypeRef");
LPar();
Value("JSIL.Pointer");
Comma();
OpenBracket(false);
TypeReference(pt.ElementType, context);
CloseBracket(false);
RPar();
}
protected void TypeReferenceInternal (TypeReference tr, TypeReferenceContext context) {
var type = TypeUtil.DereferenceType(tr);
var typeDef = TypeUtil.GetTypeDefinition(type, false);
var typeInfo = TypeInfo.Get(type);
var fullName = (typeInfo != null) ? typeInfo.FullName
: (typeDef != null) ? typeDef.FullName
: type.FullName;
AssemblyReference(type);
Dot();
WriteRaw("TypeRef");
LPar();
Value(fullName);
var git = tr as GenericInstanceType;
if (git != null)
EmitGenericTypeReferenceArguments(git, context);
RPar();
}
protected void EmitGenericTypeReferenceArguments (GenericInstanceType git, TypeReferenceContext context) {
Comma();
OpenBracket();
CommaSeparatedList(git.GenericArguments, context);
CloseBracket();
}
protected void TypeReferenceInternal (ArrayType at, TypeReferenceContext context) {
WriteRaw("$jsilcore");
Dot();
WriteRaw("TypeRef");
LPar();
Value("System.Array");
Comma();
OpenBracket();
TypeReference(at.ElementType, context);
CloseBracket();
RPar();
}
public void TypeReference (TypeReference type, TypeReferenceContext context) {
if (
(context != null) &&
(context.EnclosingType != null) &&
!context.EnclosingTypeSkipped
) {
if (TypeUtil.TypesAreEqual(type, context.EnclosingType, true)) {
// Types can reference themselves, so this prevents recursive initialization.
if (Stubbed && Configuration.GenerateSkeletonsForStubbedAssemblies.GetValueOrDefault(false)) {
} else {
if (context.EnclosingMethod != null) {
// $.Type is incorrect for generics because it will be the open form.
// FIXME: Will this work for static methods?
WriteRaw("this.__Type__");
} else {
WriteRaw("$.Type");
}
return;
}
}
// The interface builder provides helpful shorthand for corlib type references.
if (type.Scope.Name == "mscorlib" || type.Scope.Name == "CommonLanguageRuntimeLibrary") {
if (CorlibTypes.Contains(type.FullName)) {
WriteRaw("$.");
WriteRaw(type.Name);
return;
}
}
}
if (type.FullName == "JSIL.Proxy.AnyType") {
Value("JSIL.AnyType");
return;
} else if (type.FullName == "JSIL.Proxy.AnyType[]") {
TypeReference(TypeUtil.GetTypeDefinition(type), context);
Space();
Comment("AnyType[]");
return;
}
var byref = type as ByReferenceType;
var gp = type as GenericParameter;
var at = type as ArrayType;
var pt = type as PointerType;
if (byref != null)
TypeReferenceInternal(byref, context);
else if (gp != null)
TypeReferenceInternal(gp, context);
else if (at != null)
TypeReferenceInternal(at, context);
else if (pt != null)
TypeReferenceInternal(pt, context);
else
TypeReferenceInternal(type, context);
}
public void TypeReference (TypeInfo type, TypeReferenceContext context) {
TypeReference(type.Definition, context);
}
public void MemberDescriptor (
bool isPublic, bool isStatic,
bool isVirtual = false, bool isReadonly = false,
int? offset = null
) {
WriteRaw("{");
WriteRaw("Static");
WriteRaw(":");
Value(isStatic);
if (isStatic)
WriteRaw(" ");
Comma();
WriteRaw("Public");
WriteRaw(":");
Value(isPublic);
if (isPublic)
WriteRaw(" ");
if (isVirtual) {
Comma();
WriteRaw("Virtual");
WriteRaw(":");
WriteRaw("true ");
}
if (isReadonly) {
Comma();
WriteRaw("ReadOnly");
WriteRaw(":");
WriteRaw("true ");
}
if (offset.HasValue) {
Comma();
WriteRaw("Offset: ");
Value(offset.Value);
}
WriteRaw("}");
}
public void Identifier (string name, EscapingMode escapingMode = EscapingMode.MemberIdentifier) {
WriteRaw(Util.EscapeIdentifier(
name, escapingMode
));
}
internal void Identifier (string name, TypeReferenceContext context, bool includeParens = false) {
if (context == null)
throw new ArgumentNullException("context");
Identifier(name);
}
public void Identifier (ILVariable variable, TypeReferenceContext context, bool includeParens = false) {
if (variable.Type.IsByReference) {
throw new NotImplementedException("Old-style use of JavascriptFormatter.Identifier on a ref variable");
} else {
Identifier(variable.Name);
}
}
public void Identifier (TypeReference type, TypeReferenceContext context, bool includeParens = false) {
if (type.FullName == "JSIL.Proxy.AnyType")
WriteRaw("JSIL.AnyType");
else
TypeIdentifier(type as dynamic, context, includeParens);
}
protected void TypeIdentifier (TypeInfo type, TypeReferenceContext context, bool includeParens) {
TypeIdentifier(type.Definition as dynamic, context, includeParens);
}
protected bool EmitThisForParameter (GenericParameter gp) {
var tr = gp.Owner as TypeReference;
if (tr != null
&& (CurrentMethod == null
|| (CurrentMethod.DeclaringType.GenericParameters != null
&& CurrentMethod.DeclaringType.GenericParameters.Any(p => p.Name == gp.Name))))
{
return true;
}
return false;
}
protected void TypeIdentifier (TypeReference type, TypeReferenceContext context, bool includeParens) {
if (type.FullName == "JSIL.Proxy.AnyType") {
WriteRaw("JSIL.AnyType");
return;
}
if (TypeUtil.TypesAreEqual(context.EnclosingType, type, true)) {
WriteRaw("$thisType");
return;
}
if (type.IsGenericParameter) {
var gp = (GenericParameter)type;
var ownerType = gp.Owner as TypeReference;
if (gp.Owner == null) {
Value(gp.Name);
} else if (
(CurrentMethod != null) &&
((CurrentMethod.Equals(gp.Owner)) ||
(CurrentMethod.DeclaringType.Equals(gp.Owner))
)
) {
if (ownerType != null) {
Identifier(ownerType, context);
Dot();
Identifier(gp.Name);
Dot();
Identifier("get");
LPar();
WriteRaw("this");
RPar();
} else {
Identifier(gp.Name);
}
} else {
if (EmitThisForParameter(gp)) {
WriteRaw("this");
Dot();
}
Identifier(type.FullName);
}
} else {
var info = TypeInfo.Get(type);
if ((info != null) && (info.Replacement != null)) {
WriteRaw(info.Replacement);
return;
}
var typedef = type.Resolve();
if (typedef != null) {
if (GetContainingAssemblyName(typedef) == Assembly.FullName) {
WriteToken(PrivateToken);
WriteRaw(".");
} else {
AssemblyReference(typedef);
WriteRaw(".");
}
}
if (info != null) {
WriteRaw(Util.EscapeIdentifier(
info.FullName, EscapingMode.TypeIdentifier
));
} else {
// FIXME: Is this right?
WriteRaw(Util.EscapeIdentifier(
type.FullName, EscapingMode.TypeIdentifier
));
}
}
}
protected void TypeIdentifier (ByReferenceType type, TypeReferenceContext context, bool includeParens) {
if (includeParens)
LPar();
WriteRaw("JSIL.Reference.Of");
LPar();
TypeIdentifier(type.ElementType as dynamic, context, false);
RPar();
if (includeParens) {
RPar();
Space();
}
}
protected void TypeIdentifier (ArrayType type, TypeReferenceContext context, bool includeParens) {
if (includeParens)
LPar();
WriteRaw("System.Array.Of");
LPar();
TypeIdentifier(type.ElementType as dynamic, context, false);
RPar();
if (includeParens) {
RPar();
Space();
}
}
protected void TypeIdentifier (OptionalModifierType modopt, TypeReferenceContext context, bool includeParens) {
Identifier(modopt.ElementType as dynamic, context, includeParens);
}
protected void TypeIdentifier (RequiredModifierType modreq, TypeReferenceContext context, bool includeParens) {
Identifier(modreq.ElementType as dynamic, context, includeParens);
}
protected void TypeIdentifier (PointerType ptr, TypeReferenceContext context, bool includeParens) {
WriteRaw("JSIL.Pointer.Of");
LPar();
Identifier(ptr.ElementType as dynamic, context, includeParens);
RPar();
}
protected void TypeIdentifier (GenericInstanceType type, TypeReferenceContext context, bool includeParens) {
if (includeParens)
LPar();
Identifier(type.ElementType as dynamic, context, includeParens);