From aa3a6929584eaa63cafb73353a62effd75d4dd8c Mon Sep 17 00:00:00 2001 From: jwansek Date: Mon, 25 Oct 2021 15:20:30 +0100 Subject: added using symbol table in stack --- .../sableCCCalculator/SymbolTable.java | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) (limited to 'code/simpleSableCCCalulator/sableCCCalculator/SymbolTable.java') diff --git a/code/simpleSableCCCalulator/sableCCCalculator/SymbolTable.java b/code/simpleSableCCCalulator/sableCCCalculator/SymbolTable.java index 435e48d..992e873 100644 --- a/code/simpleSableCCCalulator/sableCCCalculator/SymbolTable.java +++ b/code/simpleSableCCCalulator/sableCCCalculator/SymbolTable.java @@ -6,7 +6,8 @@ public class SymbolTable { public interface SymbolTableIndex {} - public abstract class Name implements SymbolTableIndex { + public abstract class Name implements SymbolTableIndex { + // can be used for functions too hopefully one day... protected String name; String getName() { @@ -42,7 +43,21 @@ public class SymbolTable { return index; } + public void updateVariable(Type newItem, SymbolTableIndex index) { + theSymbolTable.replace(index, newItem); + } + public Type get(SymbolTableIndex index) { return theSymbolTable.get(index); } + + public static void main(String[] args) { + SymbolTable symbolTable = new SymbolTable(); + symbolTable.addConstant(new Int(3)); + SymbolTableIndex i_var = symbolTable.addVariable(new Int(0), "i"); + System.out.println(symbolTable.get(i_var)); + symbolTable.updateVariable(symbolTable.get(i_var).add(new Int(1)), i_var); + System.out.println(symbolTable.get(i_var)); + } } + \ No newline at end of file -- cgit v1.2.3