// The variable_value_resolver is used only to find the unused variables, the variable values aren't used.
// variable_value_resolver can be null, in that case unused variables aren't explored.
// cache can be null.
public ExpressionCompilerJob(Parser parser, IEvalContext eval_ctx, bool collect_unresolved_variables, CompiledExpressionCache cache)
{
m_Parser = parser;
m_EvalContext = eval_ctx;
m_CollectUnresolvedVariables = collect_unresolved_variables;
m_Cache = cache;
}
public override Value Evaluate(IEvalContext ctx)
{
string s0 = SubExpressions[0].Evaluate(ctx).ToString();
string s1 = SubExpressions[1].Evaluate(ctx).ToString();
return(new BoolValue(s0.EndsWith(s1, StringComparison.OrdinalIgnoreCase)));
}
public override Value Evaluate(IEvalContext ctx)
{
string s0 = SubExpressions[0].Evaluate(ctx).ToString();
string s1 = SubExpressions[1].Evaluate(ctx).ToString();
int idx = s0.IndexOf(s1, StringComparison.OrdinalIgnoreCase);
return(new BoolValue(idx >= 0));
}
protected internal virtual Value RecursiveCollectUnresolvedVariables(IEvalContext ctx)
{
for (int i = 0; i < SubExpressions.Length; ++i)
{
SubExpressions[i].RecursiveCollectUnresolvedVariables(ctx);
}
return(m_CollectUnresolvedVariableDefaultRetVal);
}
protected internal override Value RecursiveCollectUnresolvedVariables(IEvalContext ctx)
{
SubExpressions[0].RecursiveCollectUnresolvedVariables(ctx);
SubExpressions[1].RecursiveCollectUnresolvedVariables(ctx);
Match m = m_Regex.Match("");
m_LocalContext = new RegexMatchLocalContext(m_Regex.GetGroupNumbers(), m_Regex.GetGroupNames(), m.Groups);
return(new BoolValue(!m_InvertResultValue));
}
public List <Variable> CollectUnresolvedVariables(IEvalContext ctx)
{
Debug.Assert(!(ctx is SafeEvalContext));
Private.UnresolvedVariableCollectorEvalContext uvc_ctx = new Private.UnresolvedVariableCollectorEvalContext(ctx);
SafeEvalContext safe_ctx = new SafeEvalContext(uvc_ctx);
RecursiveCollectUnresolvedVariables(safe_ctx);
return(uvc_ctx.UnresolvedVariables);
}
public async override Task <Token> EvalAsync(IEvalContext ctx)
{
StringBuilder sb = new StringBuilder();
foreach (var expr in this.Expressions)
{
sb.Append((string)await expr.EvalAsync(ctx));
}
return(new StringToken(sb.ToString()));
}
public override Value Evaluate(IEvalContext ctx)
{
Value v = ctx.GetVariableValue(this);
if (v != null)
{
return(v);
}
throw new ExpressionEvaluatorException(string.Format("Error retrieving the value of variable '{0}' during expression evaluation!", m_Name));
}
public override Value Evaluate(IEvalContext ctx)
{
Value val0 = SubExpressions[0].Evaluate(ctx);
Value val1 = SubExpressions[1].Evaluate(ctx);
if (val0.GetType() == Type.String && val1.GetType() == Type.String)
{
return(new BoolValue(!val0.ToString().Equals(val1.ToString(), StringComparison.OrdinalIgnoreCase)));
}
return(new BoolValue(val0.ToBool() != val1.ToBool()));
}
protected internal override Value RecursiveCollectUnresolvedVariables(IEvalContext ctx)
{
SubExpressions[0].RecursiveCollectUnresolvedVariables(ctx);
SubExpressions[1].RecursiveCollectUnresolvedVariables(ctx);
string output = "X";
if (m_VariableName != null)
{
m_LocalContext = new VariableValueResolver();
m_LocalContext.SetVariable(m_VariableName, output);
}
return new StringValue(output);
}
public async override Task <Token> EvalAsync(IEvalContext ctx)
{
if (this.Left == this.Right)
{
return(Token.True);
}
var leftToken = await this.Left.EvalAsync(ctx);
var rightToken = await this.Right.EvalAsync(ctx);
return(new BooleanToken(leftToken < rightToken));
}
protected internal override Value RecursiveCollectUnresolvedVariables(IEvalContext ctx)
{
SubExpressions[0].RecursiveCollectUnresolvedVariables(ctx);
SubExpressions[1].RecursiveCollectUnresolvedVariables(ctx);
string output = "X";
if (m_VariableName != null)
{
m_LocalContext = new VariableValueResolver();
m_LocalContext.SetVariable(m_VariableName, output);
}
return(new StringValue(output));
}
public override Value Evaluate(IEvalContext ctx)
{
Match match = m_Regex.Match(SubExpressions[0].Evaluate(ctx).ToString());
if (!match.Success)
{
m_LocalContext = null;
return(new BoolValue(m_InvertResultValue));
}
m_LocalContext = new RegexMatchLocalContext(m_Regex.GetGroupNumbers(), m_Regex.GetGroupNames(), match.Groups);
return(new BoolValue(!m_InvertResultValue));
}
public override Value Evaluate(IEvalContext ctx)
{
string dir = SubExpressions[0].Evaluate(ctx).ToString();
string path = SubExpressions[1].Evaluate(ctx).ToString();
bool rooted_dir = System.IO.Path.IsPathRooted(dir);
bool rooted_path = System.IO.Path.IsPathRooted(path);
if (rooted_dir ^ rooted_path)
{
return(GetErrorReturnValue(path));
}
string[] dir_components = dir.Split(PATH_SEPARATORS, StringSplitOptions.RemoveEmptyEntries);
string[] path_components = path.Split(PATH_SEPARATORS, StringSplitOptions.RemoveEmptyEntries);
int max_cmp_count = Math.Min(dir_components.Length, path_components.Length);
int same;
for (same = 0; same < max_cmp_count; ++same)
{
if (dir_components[same].ToLower() != path_components[same].ToLower())
{
break;
}
}
if (same == 0 && rooted_dir && !dir.StartsWith("\\") && !dir.StartsWith("/"))
{
return(GetErrorReturnValue(path));
}
StringBuilder sb = new StringBuilder();
for (int i = 0, e = dir_components.Length - same; i < e; ++i)
{
sb.Append(i > 0 ? "/.." : "..");
}
for (int i = same; i < path_components.Length; ++i)
{
if (sb.Length > 0)
{
sb.Append('/');
}
sb.Append(path_components[i]);
}
return(new StringValue(sb.ToString()));
}
public override Value Evaluate(IEvalContext ctx)
{
string path = SubExpressions[0].Evaluate(ctx).ToString();
string owner = "";
if (path.Length > 0)
{
PackageGlobals.InvokeOnUIThread(delegate()
{
owner = WorkspaceInfoGetter.Instance().GetOwner(path);
});
}
return(new StringValue(owner));
}
public override Value Evaluate(IEvalContext ctx)
{
string command = SubExpressions[0].Evaluate(ctx).ToString();
string workdir = SubExpressions[1].Evaluate(ctx).ToString();
string exec_output = m_Evaluator.Evaluate(m_ExecPeriodSecs, command, workdir);
if (m_VariableName != null)
{
m_LocalContext = new VariableValueResolver();
m_LocalContext.SetVariable(m_VariableName, exec_output);
}
return(new StringValue(exec_output));
}
public override Value Evaluate(IEvalContext ctx)
{
string command = SubExpressions[0].Evaluate(ctx).ToString();
string workdir = SubExpressions[1].Evaluate(ctx).ToString();
string exec_output = m_Evaluator.Evaluate(m_ExecPeriodSecs, command, workdir);
if (m_VariableName != null)
{
m_LocalContext = new VariableValueResolver();
m_LocalContext.SetVariable(m_VariableName, exec_output);
}
return new StringValue(exec_output);
}
public override async Task <Token> EvalAsync(IEvalContext ctx)
{
var leftValue = await this.Left.EvalAsync(ctx);
if (!leftValue)
{
return(BooleanToken.False);
}
var rightValue = await this.Right.EvalAsync(ctx);
if (!rightValue)
{
return(BooleanToken.False);
}
return(BooleanToken.True);
}
private ExpressionLanguageEngine(IEvalContext ctx, IEvalExceptionHandlingPolicy policy, object fallbackValue, ICache <string, ExpressionLanguageAST> cache)
{
_i = new Interpreter();
if (ctx != null)
{
_ctx = ctx;
}
else
{
_ctx = new EvalContext();
}
_ctx.Assign(NULL, null);//Note:null works as keyword
_policy = policy;
_fallbackValue = fallbackValue;
_cache = cache;
}
public async override Task <Token> EvalAsync(IEvalContext ctx)
{
Token value = await ctx.ResolveTargetAsync(this.Target);
if (value == null)
{
return(Token.Empty);
}
foreach (var member in Members)
{
value = value[member];
if (value == null)
{
return(Token.Empty);
}
}
return(value);
}
protected internal override Value RecursiveCollectUnresolvedVariables(IEvalContext ctx)
{
Expression expr_ctx, expr_no_ctx;
if (SubExpressions[0].RecursiveCollectUnresolvedVariables(ctx).ToBool())
{
expr_ctx = SubExpressions[1];
expr_no_ctx = SubExpressions[2];
}
else
{
expr_ctx = SubExpressions[2];
expr_no_ctx = SubExpressions[1];
}
if (expr_ctx != null)
{
IVariableValueResolver local_ctx = SubExpressions[0].GetLocalContext();
if (local_ctx == null)
{
expr_ctx.RecursiveCollectUnresolvedVariables(ctx);
}
else
{
ctx.PushLocalContext(local_ctx);
try
{
expr_ctx.RecursiveCollectUnresolvedVariables(ctx);
}
finally
{
ctx.PopLocalContext();
}
}
}
if (expr_no_ctx != null)
{
expr_no_ctx.RecursiveCollectUnresolvedVariables(ctx);
}
return(new BoolValue(false));
}
public async override Task <Token> EvalAsync(IEvalContext ctx)
{
var strs = this.Expressions;
if (strs.Count == 0)
{
return(Token.Empty);
}
if (strs.Count == 1)
{
return(await strs[0].EvalAsync(ctx));
}
StringBuilder sb = new StringBuilder();
foreach (var expr in strs)
{
sb.Append((string)(await expr.EvalAsync(ctx)));
}
return(new StringToken(sb.ToString()));
}
public override Value Evaluate(IEvalContext ctx)
{
Expression expr = SubExpressions[0].Evaluate(ctx).ToBool() ? SubExpressions[1] : SubExpressions[2];
IVariableValueResolver local_ctx = SubExpressions[0].GetLocalContext();
if (local_ctx == null)
{
return(expr.Evaluate(ctx));
}
else
{
ctx.PushLocalContext(local_ctx);
try
{
Value res = expr.Evaluate(ctx);
return(res);
}
finally
{
ctx.PopLocalContext();
}
}
}
public abstract Task <Token> EvalAsync(IEvalContext ctx);
public abstract Value Evaluate(IEvalContext ctx);
public UnresolvedVariableCollectorEvalContext(IEvalContext ctx) : base(ctx)
{
}
public EvalVisitor(IEvalContext ctx)
{
_ctx = ctx;
}
public UnitOfWork(IEvalContext context)
{
_context = context;
}
public override Value Evaluate(IEvalContext ctx)
{
string dir = SubExpressions[0].Evaluate(ctx).ToString();
string path = SubExpressions[1].Evaluate(ctx).ToString();
bool rooted_dir = System.IO.Path.IsPathRooted(dir);
bool rooted_path = System.IO.Path.IsPathRooted(path);
if (rooted_dir ^ rooted_path)
return GetErrorReturnValue(path);
string[] dir_components = dir.Split(PATH_SEPARATORS, StringSplitOptions.RemoveEmptyEntries);
string[] path_components = path.Split(PATH_SEPARATORS, StringSplitOptions.RemoveEmptyEntries);
int max_cmp_count = Math.Min(dir_components.Length, path_components.Length);
int same;
for (same = 0; same < max_cmp_count; ++same)
{
if (dir_components[same].ToLower() != path_components[same].ToLower())
break;
}
if (same == 0 && rooted_dir && !dir.StartsWith("\\") && !dir.StartsWith("/"))
return GetErrorReturnValue(path);
StringBuilder sb = new StringBuilder();
for (int i=0,e=dir_components.Length-same; i<e; ++i)
sb.Append(i > 0 ? "/.." : "..");
for (int i = same; i < path_components.Length; ++i)
{
if (sb.Length > 0)
sb.Append('/');
sb.Append(path_components[i]);
}
return new StringValue(sb.ToString());
}
public override Value Evaluate(IEvalContext ctx)
{
return(new StringValue(SubExpressions[0].Evaluate(ctx).ToString() + SubExpressions[1].Evaluate(ctx).ToString()));
}
public async override Task <Token> EvalAsync(IEvalContext ctx)
{
return(new StringToken(this.Value));
}
public override Value Evaluate(IEvalContext ctx)
{
string path = SubExpressions[0].Evaluate(ctx).ToString();
string owner = "";
if (path.Length > 0)
{
PackageGlobals.InvokeOnUIThread(delegate()
{
owner = WorkspaceInfoGetter.Instance().GetOwner(path);
});
}
return new StringValue(owner);
}
public override Value Evaluate(IEvalContext ctx)
{
return(new BoolValue(SubExpressions[0].Evaluate(ctx).ToBool() ^ SubExpressions[1].Evaluate(ctx).ToBool()));
}
public override Value Evaluate(IEvalContext ctx)
{
return(this);
}