cs132.vapor.ast
Class VFunction

java.lang.Object
  cs132.vapor.ast.Node
      cs132.vapor.ast.VTarget
          cs132.vapor.ast.VFunction

public class VFunction
extends VTarget

A function definition.

Nested Class Summary

static class

VFunction.Stack The details of a function's stack space declaration.

Field Summary

VInstr[]	body The function body is just a list of instructions.
int	index All functions in a single program are assigned an index contiguously, starting from zero.
VCodeLabel[]	labels The function's list of code labels.
VVarRef.Local[]	params The function's parameter list.
VFunction.Stack	stack The function's stack declaration.
String[]	vars The full list of local variables used in this function.

Fields inherited from class cs132.vapor.ast.VTarget

ident

Fields inherited from class cs132.vapor.ast.Node

sourcePos

Constructor Summary

VFunction(SourcePos sourcePos, String ident, int index, VVarRef.Local[] params, VFunction.Stack stack)

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

index

public final int index

All functions in a single program are assigned an index contiguously, starting from zero.

params

public final VVarRef.Local[] params

The function's parameter list.

labels

public VCodeLabel[] labels

The function's list of code labels. This array keeps the labels in the same order they appear in the code.

stack

public final VFunction.Stack stack

The function's stack declaration. Ex: [in 1, out 2, local 0].

body

public VInstr[] body

The function body is just a list of instructions. The code labels appear separately in the labels array.

vars

public String[] vars

The full list of local variables used in this function. VVarRef.Local nodes have an index that point into this array.

Constructor Detail

VFunction

public VFunction(SourcePos sourcePos,
                 String ident,
                 int index,
                 VVarRef.Local[] params,
                 VFunction.Stack stack)