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MonoFunctionType.cs
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MonoFunctionType.cs
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using System;
using System.Collections;
using System.Runtime.Serialization;
using C = Mono.CompilerServices.SymbolWriter;
using Cecil = Mono.Cecil;
using Mono.Debugger;
using Mono.Debugger.Backends;
namespace Mono.Debugger.Languages.Mono
{
internal class MonoFunctionType : TargetFunctionType
{
MonoClassType klass;
SourceFile file;
int start_row, end_row;
Cecil.MethodDefinition method_info;
TargetType return_type;
TargetType[] parameter_types;
bool has_return_type;
string name;
int token;
int load_handler;
internal MonoFunctionType (MonoClassType klass, Cecil.MethodDefinition mdef)
: base (klass.File.MonoLanguage)
{
this.klass = klass;
this.method_info = mdef;
this.token = MonoDebuggerSupport.GetMethodToken (mdef);
this.name = GetMethodName (mdef) + MonoSymbolFile.GetMethodSignature (mdef);
Cecil.TypeReference rtype;
if (mdef.IsConstructor) {
rtype = mdef.DeclaringType;
has_return_type = true;
} else {
rtype = mdef.ReturnType.ReturnType;
has_return_type = rtype.FullName != "System.Void";
}
return_type = klass.File.MonoLanguage.LookupMonoType (rtype);
parameter_types = new TargetType [mdef.Parameters.Count];
for (int i = 0; i < mdef.Parameters.Count; i++)
parameter_types [i] = klass.File.MonoLanguage.LookupMonoType (
mdef.Parameters[i].ParameterType);
}
internal MonoFunctionType (MonoClassType klass, Cecil.MethodDefinition mdef,
SourceFile file, int start_row, int end_row)
: this (klass, mdef)
{
this.file = file;
this.start_row = start_row;
this.end_row = end_row;
}
internal static string GetMethodName (Cecil.MethodDefinition mdef)
{
Cecil.GenericParameterCollection gen_params = mdef.GenericParameters;
if ((gen_params == null) || (gen_params.Count == 0))
return mdef.Name;
else
return mdef.Name + "`" + gen_params.Count;
}
public override bool HasClassType {
get { return false; }
}
public override TargetClassType ClassType {
get { throw new InvalidOperationException (); }
}
public override string Name {
get { return name; }
}
public override string FullName {
get { return klass.Name + '.' + name; }
}
public override bool IsByRef {
get { return true; }
}
public override bool IsStatic {
get { return method_info.IsStatic; }
}
public override bool IsConstructor {
get { return method_info.IsConstructor; }
}
public override TargetType ReturnType {
get { return return_type; }
}
public override bool HasReturnValue {
get { return has_return_type; }
}
public override TargetType[] ParameterTypes {
get { return parameter_types; }
}
public int Token {
get { return token; }
}
public override TargetClassType DeclaringType {
get { return klass; }
}
internal MonoClassType MonoClass {
get { return klass; }
}
internal Cecil.MethodDefinition MethodInfo {
get { return method_info; }
}
public override object MethodHandle {
get { return method_info; }
}
public override bool HasFixedSize {
get { return true; }
}
public override int Size {
get { return klass.File.TargetMemoryInfo.TargetAddressSize; }
}
public override bool HasSourceCode {
get { return file != null; }
}
public override SourceFile SourceFile {
get {
if (!HasSourceCode)
throw new InvalidOperationException ();
return file;
}
}
public override int StartRow {
get {
if (!HasSourceCode)
throw new InvalidOperationException ();
return start_row;
}
}
public override int EndRow {
get {
if (!HasSourceCode)
throw new InvalidOperationException ();
return end_row;
}
}
public override TargetAddress GetMethodAddress (Thread thread)
{
MonoClassInfo info = klass.HardResolveClass (thread);
return (TargetAddress) thread.ThreadServant.DoTargetAccess (
delegate (TargetMemoryAccess target) {
return info.GetMethodAddress (target, Token);
});
}
protected override TargetObject DoGetObject (TargetMemoryAccess target,
TargetLocation location)
{
throw new InvalidOperationException ();
}
public override bool IsManaged {
get { return true; }
}
internal override bool InsertBreakpoint (Thread target,
FunctionBreakpointHandle handle)
{
load_handler = klass.File.MonoLanguage.RegisterMethodLoadHandler (
target, this, handle);
return load_handler > 0;
}
internal override void RemoveBreakpoint (Thread target)
{
if (load_handler > 0) {
klass.File.MonoLanguage.RemoveMethodLoadHandler (target, load_handler);
load_handler = -1;
}
}
}
}