public override PinnedVariableResult PinFloatingPointExpressionToVariable(
ExpressionBuilderParams p,
TypeDescriptor typeDescriptor,
string nameHint,
string expression,
EvaluationStatement template)
{
var variableName = p.Scope.NewHelperVariable(typeDescriptor, nameHint);
expression = $"`awk \"BEGIN {{print ({expression})}}\"`";
BashVariableDefinitionStatementTranspiler.WriteVariableDefinition(
p.Context,
p.Scope,
p.NonInlinePartWriter,
variableName,
expression
);
template = new VariableAccessStatement(variableName, template.Info);
return(new PinnedVariableResult(
typeDescriptor,
variableName,
FormatVariableAccessExpression(p,
typeDescriptor,
variableName,
template
),
template));
}
public static string GetUtilityLookupTestVariableName(Context context, TextWriter metaWriter,
IThirdPartyUtility utility)
{
var utilName = utility.Name;
if (UtilitiesLookupTestVariableName.TryGetValue(utilName, out var name))
{
return($"${name} -ne 0");
}
var condition = utility.WriteExistenceCondition(context, metaWriter);
metaWriter.WriteLine($"if [ {condition} ]");
metaWriter.WriteLine("then");
name = context.GeneralScope.NewHelperVariable(TypeDescriptor.Boolean, $"{utilName}_existence");
BashVariableDefinitionStatementTranspiler.WriteVariableDefinition(context, context.GeneralScope, metaWriter,
name, "1");
metaWriter.WriteLine("else");
BashVariableDefinitionStatementTranspiler.WriteVariableDefinition(context, context.GeneralScope, metaWriter,
name, "0");
metaWriter.WriteLine("fi");
return($"${name} -ne 0");
}
public override PinnedVariableResult PinExpressionToVariable(ExpressionBuilderParams p, string nameHint,
ExpressionResult result)
{
var variableName = p.Scope.NewHelperVariable(result.TypeDescriptor, nameHint);
BashVariableDefinitionStatementTranspiler.WriteVariableDefinition(
p.Context,
p.Scope,
p.NonInlinePartWriter,
variableName,
result.Expression
);
var template = new VariableAccessStatement(variableName, result.Template.Info);
return(new PinnedVariableResult(
result.TypeDescriptor,
variableName,
FormatVariableAccessExpression(p,
result.TypeDescriptor,
variableName,
template
),
template));
}
public string GetLastFunctionCallStorageVariable(TypeDescriptor typeDescriptor, TextWriter metaTextWriter)
{
const string VariableName = "LastFunctionCall";
var existed = GeneralScope.ReserveOrUpdateNewVariable(typeDescriptor, VariableName);
if (!existed)
{
BashVariableDefinitionStatementTranspiler.WriteVariableDefinition(this, GeneralScope, metaTextWriter,
VariableName, "0");
}
return(VariableName);
}