internal override Expression ResolveEntityNames(ParserContext parser)
{
this.Root = this.Root.ResolveEntityNames(parser);
this.Index = this.Index.ResolveEntityNames(parser);
if (this.Root is CompileTimeDictionary)
{
// Swap out this bracketed expression with a fixed constant.
CompileTimeDictionary root = (CompileTimeDictionary)this.Root;
if (root.Type == "var")
{
if (this.Index is StringConstant)
{
string index = ((StringConstant)this.Index).Value;
if (parser.BuildContext.TopLevelAssembly.BuildVariableLookup.ContainsKey(index))
{
BuildVarCanonicalized buildVar = parser.BuildContext.TopLevelAssembly.BuildVariableLookup[index];
switch (buildVar.Type)
{
case VarType.INT: return(new IntegerConstant(this.FirstToken, buildVar.IntValue, this.Owner));
case VarType.FLOAT: return(new FloatConstant(this.FirstToken, buildVar.FloatValue, this.Owner));
case VarType.STRING: return(new StringConstant(this.FirstToken, buildVar.StringValue, this.Owner));
case VarType.BOOLEAN: return(new BooleanConstant(this.FirstToken, buildVar.BoolValue, this.Owner));
default:
throw new System.Exception("This should not happen."); // invalid types filtered during build context construction.
}
}
else
{
return(new NullConstant(this.FirstToken, this.Owner));
// TODO: strict mode that enforces this. There are two ways this could be done:
// 1) $var['foo'] vs $optional['foo']
// 2) <strictvars>true</strictvars>
// I kind of prefer #1.
// throw new ParserException(this.Index, "The build variable with id '" + index + "' is not defined for this target.");
}
}
}
else
{
throw new System.Exception("Unknown compile time dictionary type.");
}
}
return(this);
}
private static Dictionary<string, BuildVarCanonicalized> GenerateBuildVars(BuildItem root, BuildItem target, string targetName)
{
Dictionary<string, BuildVar> firstPass = new Dictionary<string, BuildVar>();
if (root.Var != null)
{
foreach (BuildVar rootVar in root.Var)
{
if (rootVar.Id == null)
{
throw new InvalidOperationException("Build file contains a <var> without an id attribute.");
}
firstPass.Add(rootVar.Id, rootVar);
}
}
if (target.Var != null)
{
foreach (BuildVar targetVar in target.Var)
{
if (targetVar.Id == null)
{
throw new InvalidOperationException("Build file target contains a <var> without an id attribute.");
}
firstPass[targetVar.Id] = targetVar;
}
}
Dictionary<string, BuildVarCanonicalized> output = new Dictionary<string, BuildVarCanonicalized>();
foreach (BuildVar rawElement in firstPass.Values)
{
string id = rawElement.Id;
string value = rawElement.Value;
int intValue = 0;
double floatValue = 0;
bool boolValue = false;
VarType type = VarType.BOOLEAN;
switch ((rawElement.Type ?? "string").ToLowerInvariant())
{
case "int":
case "integer":
type = VarType.INT;
break;
case "float":
case "double":
type = VarType.FLOAT;
break;
case "bool":
case "boolean":
type = VarType.BOOLEAN;
break;
case "string":
type = VarType.STRING;
break;
default:
throw new InvalidOperationException("Build file variable '" + id + "' contains an unrecognized type: '" + rawElement.Type + "'. Types must be 'string', 'integer', 'boolean', or 'float'.");
}
int score = (rawElement.EnvironmentVarValue != null ? 1 : 0)
+ (rawElement.Value != null ? 1 : 0);
if (score != 1)
{
throw new InvalidOperationException("Build file variable '" + id + "' must contain either a <value> or a <env> content element but not both.");
}
if (value == null)
{
value = System.Environment.GetEnvironmentVariable(rawElement.EnvironmentVarValue);
if (value == null)
{
throw new InvalidOperationException("Build file varaible '" + id + "' references an environment variable that is not set: '" + rawElement.EnvironmentVarValue + "'");
}
value = DoReplacement(targetName, value.Trim());
}
switch (type)
{
case VarType.INT:
if (!int.TryParse(value, out intValue))
{
throw new InvalidOperationException("Build file variable: '" + id + "' contains an invalid integer value.");
}
break;
case VarType.FLOAT:
if (!double.TryParse(value, out floatValue))
{
throw new InvalidOperationException("Build file variable: '" + id + "' contains an invalid float value.");
}
break;
case VarType.BOOLEAN:
switch (value.ToLowerInvariant())
{
case "0":
case "no":
case "false":
case "f":
case "n":
boolValue = false;
break;
case "1":
case "true":
case "t":
case "yes":
case "y":
boolValue = true;
break;
default:
throw new InvalidOperationException("Build file variable: '" + id + "' contains an invalid boolean valud.");
}
break;
case VarType.STRING:
break;
default:
break;
}
output[id] = new BuildVarCanonicalized()
{
ID = id,
Type = type,
StringValue = value,
IntValue = intValue,
FloatValue = floatValue,
BoolValue = boolValue
};
}
return output;
}
private static Dictionary <string, BuildVarCanonicalized> GenerateBuildVars(BuildItem root, BuildItem target, string targetName)
{
Dictionary <string, BuildVar> firstPass = new Dictionary <string, BuildVar>();
if (root.Var != null)
{
foreach (BuildVar rootVar in root.Var)
{
if (rootVar.Id == null)
{
throw new InvalidOperationException("Build file contains a <var> without an id attribute.");
}
firstPass.Add(rootVar.Id, rootVar);
}
}
if (target.Var != null)
{
foreach (BuildVar targetVar in target.Var)
{
if (targetVar.Id == null)
{
throw new InvalidOperationException("Build file target contains a <var> without an id attribute.");
}
firstPass[targetVar.Id] = targetVar;
}
}
Dictionary <string, BuildVarCanonicalized> output = new Dictionary <string, BuildVarCanonicalized>();
foreach (BuildVar rawElement in firstPass.Values)
{
string id = rawElement.Id;
string value = rawElement.Value;
int intValue = 0;
double floatValue = 0;
bool boolValue = false;
VarType type = VarType.BOOLEAN;
switch ((rawElement.Type ?? "string").ToLowerInvariant())
{
case "int":
case "integer":
type = VarType.INT;
break;
case "float":
case "double":
type = VarType.FLOAT;
break;
case "bool":
case "boolean":
type = VarType.BOOLEAN;
break;
case "string":
type = VarType.STRING;
break;
default:
throw new InvalidOperationException("Build file variable '" + id + "' contains an unrecognized type: '" + rawElement.Type + "'. Types must be 'string', 'integer', 'boolean', or 'float'.");
}
int score = (rawElement.EnvironmentVarValue != null ? 1 : 0)
+ (rawElement.Value != null ? 1 : 0);
if (score != 1)
{
throw new InvalidOperationException("Build file variable '" + id + "' must contain either a <value> or a <env> content element but not both.");
}
if (value == null)
{
value = System.Environment.GetEnvironmentVariable(rawElement.EnvironmentVarValue);
if (value == null)
{
throw new InvalidOperationException("Build file varaible '" + id + "' references an environment variable that is not set: '" + rawElement.EnvironmentVarValue + "'");
}
value = DoReplacement(targetName, value.Trim());
}
switch (type)
{
case VarType.INT:
if (!int.TryParse(value, out intValue))
{
throw new InvalidOperationException("Build file variable: '" + id + "' contains an invalid integer value.");
}
break;
case VarType.FLOAT:
if (!double.TryParse(value, out floatValue))
{
throw new InvalidOperationException("Build file variable: '" + id + "' contains an invalid float value.");
}
break;
case VarType.BOOLEAN:
switch (value.ToLowerInvariant())
{
case "0":
case "no":
case "false":
case "f":
case "n":
boolValue = false;
break;
case "1":
case "true":
case "t":
case "yes":
case "y":
boolValue = true;
break;
default:
throw new InvalidOperationException("Build file variable: '" + id + "' contains an invalid boolean valud.");
}
break;
case VarType.STRING:
break;
default:
break;
}
output[id] = new BuildVarCanonicalized()
{
ID = id,
Type = type,
StringValue = value,
IntValue = intValue,
FloatValue = floatValue,
BoolValue = boolValue
};
}
return(output);
}