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package vaporize.library;
import cs132.vapor.ast.*;
import java.util.ArrayList;
/**
* This class contains various generic methods for
* assembling common-use vaporm strings and managing
* the original input program.
*
* Robert Martin cries
*/
class Kettle {
ArrayList<String> vapor;
protected Kettle(ArrayList<String> vapor) {
this.vapor = vapor;
}
protected String get(Node n) {
/**
* Given the source position of a Node, returns the original line.
*/
return this.vapor.get(this.indexOf(n));
}
protected void replaceFunctionDeclare(VFunction prev, int in,
int out, int local) {
this.set(prev,
String.format("func %s [in %d, out %d, local %d]",
this.parseFuncName(this.get(prev)),
in,
out,
local));
}
protected String spill() {
return null;
}
protected String backup() {
return null;
}
protected String dump() {
return String.join("\n", this.vapor);
}
private int indexOf(Node n) {
return n.sourcePos.line-1;
}
private void set(Node n, String s) {
/**
* Sets the position of Node n in the original
* file to String s.
*/
this.vapor.set(this.indexOf(n), s);
}
private static String parseFuncName(String func) {
/**
* "func A_foo(this t.1)" -> "A_foo"
*/
int openParenIndex = func.indexOf('(');
return func.substring(5, openParenIndex);
}
}
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