christoph/lecture-compilers
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add argument-type table

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2020-12-14 15:05:15 +01:00
parent bf6e2256d8
commit 88e88c035d
1 changed files with 33 additions and 4 deletions
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37
src/main/java/typechecker/SymbolTable.java
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@ -3,7 +3,9 @@ package typechecker;
import parser.ast.AST; import parser.ast.AST;
import parser.ast.ASTNode; import parser.ast.ASTNode;
import java.util.Arrays;
import java.util.HashMap; import java.util.HashMap;
import java.util.List;
import java.util.Map; import java.util.Map;
import static util.Logger.log; import static util.Logger.log;
@ -11,11 +13,13 @@ import static util.Logger.log;
public class SymbolTable { public class SymbolTable {
private final Map<String, String> symbolTable; private final Map<String, String> symbolTable;
private final Map<String, String> methodTable; private final Map<String, String> methodReturnTable;
private final Map<String, List<String>> methodArgumentTable;
public SymbolTable(Map<String, String> symbolTable) { public SymbolTable(Map<String, String> symbolTable) {
this.symbolTable = symbolTable; this.symbolTable = symbolTable;
// Enthält die Return-Types der Operatoren
final Map<String, String> methodTable = new HashMap<>(); final Map<String, String> methodTable = new HashMap<>();
methodTable.put("ADD", "INTEGER_TYPE"); methodTable.put("ADD", "INTEGER_TYPE");
@ -35,7 +39,28 @@ public class SymbolTable {
methodTable.put("EQUAL", "BOOLEAN_TYPE"); methodTable.put("EQUAL", "BOOLEAN_TYPE");
methodTable.put("NOT_EQUAL", "BOOLEAN_TYPE"); methodTable.put("NOT_EQUAL", "BOOLEAN_TYPE");
this.methodTable = methodTable; this.methodReturnTable = methodTable;
final Map<String, List<String>> argumentTable = new HashMap<>();
argumentTable.put("ADD", Arrays.asList("INTEGER_TYPE"));
argumentTable.put("SUB", Arrays.asList("INTEGER_TYPE"));
argumentTable.put("MUL", Arrays.asList("INTEGER_TYPE"));
argumentTable.put("DIV", Arrays.asList("INTEGER_TYPE"));
argumentTable.put("MOD", Arrays.asList("INTEGER_TYPE"));
argumentTable.put("AND", Arrays.asList("BOOLEAN_TYPE"));
argumentTable.put("OR", Arrays.asList("BOOLEAN_TYPE"));
argumentTable.put("NOT", Arrays.asList("BOOLEAN_TYPE"));
argumentTable.put("LESS", Arrays.asList("INTEGER_TYPE"));
argumentTable.put("LESS_EQUAL", Arrays.asList("INTEGER_TYPE"));
argumentTable.put("GREATER", Arrays.asList("INTEGER_TYPE"));
argumentTable.put("GREATER_EQUAL", Arrays.asList("INTEGER_TYPE"));
argumentTable.put("EQUAL", Arrays.asList("INTEGER_TYPE", "BOOLEAN_TYPE", "STRING_TYPE"));
argumentTable.put("NOT_EQUAL", Arrays.asList("INTEGER_TYPE", "BOOLEAN_TYPE", "STRING_TYPE"));
this.methodArgumentTable = argumentTable;
} }
public static SymbolTable fromAST(AST tree) { public static SymbolTable fromAST(AST tree) {
@ -71,8 +96,12 @@ public class SymbolTable {
return this.symbolTable.get(sym); return this.symbolTable.get(sym);
} }
public String getMethodType(String meth) { public String getMethodReturnType(String meth) {
return this.methodTable.get(meth); return this.methodReturnTable.get(meth);
}
public List<String> getMethodArgumentType(String meth) {
return this.methodArgumentTable.get(meth);
} }
public int getSymbolCount() { public int getSymbolCount() {