BaseExpression
Abstract base class for all expressions.
| BaseExpression | ( | ); |
| BaseExpression | ( | const Location & location | ); |
| PARAMETER | DESCRIPTION |
|---|---|
location |
| virtual ~BaseExpression | ( | ); |
| virtual void collect_objects | ( | std::unordered_set< Object * > & objects | ) const; |
| PARAMETER | DESCRIPTION |
|---|---|
objects |
| virtual std::optional< Expression > evaluated | ( | const EvaluationContext & context | ) const | = 0; |
| PARAMETER | DESCRIPTION |
|---|---|
context |
| RETURNS | DESCRIPTION |
|---|---|
std::optional< Expression > |
Check if the expression has already been fully evaluated and has a value.
| virtual bool has_value | ( | ) const; |
| RETURNS | DESCRIPTION |
|---|---|
bool |
|
Get the maximum possible value of the expression if it can be determined.
| virtual std::optional< Value > maximum_value | ( | ) const; |
| RETURNS | DESCRIPTION |
|---|---|
std::optional< Value > |
The maximum possible value of the expression. |
Get the minimum possible value of the expression if it can be determined.
| virtual std::optional< Value > minimum_value | ( | ) const; |
| RETURNS | DESCRIPTION |
|---|---|
std::optional< Value > |
The minimum possible value of the expression. |
Serialize the expression to a stream.
| void serialize | ( | std::ostream & stream | ) const; |
| PARAMETER | DESCRIPTION |
|---|---|
stream |
The stream to serialize to. |
Serialize the expression to a stream.
This method must be implemented by derived classes.
| virtual void serialize_sub | ( | std::ostream & stream | ) const | = 0; |
| PARAMETER | DESCRIPTION |
|---|---|
stream |
The stream to serialize to. |
Get the type of the expression's value if it can be determined.
| virtual std::optional< Value::Type > type | ( | ) const; |
| RETURNS | DESCRIPTION |
|---|---|
std::optional< Value::Type > |
The type of the expression's value. |
Get the value of the expression if it has one.
| virtual std::optional< Value > value | ( | ) const; |
| RETURNS | DESCRIPTION |
|---|---|
std::optional< Value > |
The value of the expression. |
The location of the expression in the source code.