Package com.tonic.analysis.source.lower

Class ExpressionLowerer

java.lang.Object

com.tonic.analysis.source.lower.ExpressionLowerer

public class ExpressionLowerer
extends Object

Lowers AST Expression nodes to IR instructions.

Constructor Summary

Constructors

Constructor	Description
ExpressionLowerer(LoweringContext ctx)	Creates a new expression lowerer.

Method Summary

Modifier and Type	Method	Description
Value	lower(Expression expr)	Lowers an expression and returns the SSAValue result.
void	lowerCondition(Expression condition, IRBlock trueTarget, IRBlock falseTarget)	Lowers a condition expression for control flow (if/while/for).

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ExpressionLowerer

public ExpressionLowerer(LoweringContext ctx)

Creates a new expression lowerer.

Parameters:

ctx - the lowering context

Method Detail

lowerCondition

public void lowerCondition(Expression condition,
                           IRBlock trueTarget,
                           IRBlock falseTarget)

Lowers a condition expression for control flow (if/while/for).

Parameters:

condition - the condition expression

trueTarget - block to branch to if condition is true

falseTarget - block to branch to if condition is false

lower

public Value lower(Expression expr)

Lowers an expression and returns the SSAValue result.

Parameters:

expr - the source expression to lower

Returns:

the value the lowered instructions produce

Throws:

LoweringException - if the expression form is unsupported or cannot be resolved