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Created RecordPattern & started development with test cases

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This commit is contained in:
luca9913 2023-07-06 22:15:40 +02:00
parent 359f3e68ab
commit 492cbe48e9
6 changed files with 78 additions and 12 deletions
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19
resources/syntaxtreegenerator/javFiles/PatternMatching.jav Normal file
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@ -0,0 +1,19 @@
import java.lang.String;
record Point(int x, int y) {}
interface Shape {}
record ColoredPoint(Point pt, String color) {}
record Rectangle(ColoredPoint upperLeft, ColoredPoint lowerRight) implements Shape {}
sealed class Color permits Blue, Red {
}
class PatternMatching {
void printColorOfUpperLeftPoint(Shape shape)
{
switch (shape) {
case Rectangle(ColoredPoint(Point pt, String color), ColoredPoint lowerRight) -> System.out.println("x: " + pt.x() + " / color: " + color + " / lowerRight: " + lowerRight);
default -> System.out.println("not a rectangle");
}
}
}

18
resources/syntaxtreegenerator/javFiles/Switch.jav
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@ -1,6 +1,6 @@
import java.lang.Integer;
import java.lang.String;
import java.lang.Boolean;
import java.lang.Object;
class SwitchStatement {
@ -30,12 +30,12 @@ class SwitchStatement {
}
}
/* boolean enclosedPattern(){
var i = "Test";
var j = switch(i){
case (String s)->{ yield 0;}
case Integer i ->{ yield 1;}
};
return (j==0);
} */
record Coordinates(double x, double y) {}
boolean recordPattern(Object obj){
switch(obj){
case Coordinates(double lat, double lon): return true;
default: return false;
}
}
}

15
src/main/java/de/dhbwstuttgart/parser/SyntaxTreeGenerator/StatementGenerator.java
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@ -61,6 +61,8 @@ import de.dhbwstuttgart.parser.antlr.Java17Parser.PrimaryPatternContext;
import de.dhbwstuttgart.parser.antlr.Java17Parser.PrimarySuperContext;
import de.dhbwstuttgart.parser.antlr.Java17Parser.PrimaryThisContext;
import de.dhbwstuttgart.parser.antlr.Java17Parser.PrimaryexpressionContext;
import de.dhbwstuttgart.parser.antlr.Java17Parser.RPatternContext;
import de.dhbwstuttgart.parser.antlr.Java17Parser.RecordPatternContext;
import de.dhbwstuttgart.parser.antlr.Java17Parser.RelationalexpressionContext;
import de.dhbwstuttgart.parser.antlr.Java17Parser.ReturnstmtContext;
import de.dhbwstuttgart.parser.antlr.Java17Parser.SemistmtContext;
@ -108,6 +110,7 @@ import de.dhbwstuttgart.syntaxtree.statement.LocalVarDecl;
import de.dhbwstuttgart.syntaxtree.statement.MethodCall;
import de.dhbwstuttgart.syntaxtree.statement.NewClass;
import de.dhbwstuttgart.syntaxtree.statement.Receiver;
import de.dhbwstuttgart.syntaxtree.statement.RecordPattern;
import de.dhbwstuttgart.syntaxtree.statement.Return;
import de.dhbwstuttgart.syntaxtree.statement.ReturnVoid;
import de.dhbwstuttgart.syntaxtree.statement.Statement;
@ -409,12 +412,24 @@ public class StatementGenerator {
case TPatternContext tPattern:
TypePatternContext typePattern = tPattern.typePattern();
return new Pattern(typePattern.identifier().getText(), TypeGenerator.convert(typePattern.typeType(), reg, generics), typePattern.getStart());
case RPatternContext rPattern:
RecordPatternContext recordPattern = rPattern.recordPattern();
return convert(recordPattern);
default:
throw new NotImplementedException();
}
}
private RecordPattern convert(RecordPatternContext recordPatternCtx) {
List<PatternContext> subPatternCtx = recordPatternCtx.recordStructurePattern().recordComponentPatternList().pattern();
List<Pattern> subPattern = subPatternCtx.stream().map((patternCtx) -> {
return convert(patternCtx);
}).collect(Collectors.toList());
IdentifierContext identifierCtx = recordPatternCtx.identifier();
return new RecordPattern(subPattern, (identifierCtx != null) ? identifierCtx.getText() : null, TypeGenerator.convert(recordPatternCtx.typeType(), reg, generics), recordPatternCtx.getStart());
}
private Statement convert(Java17Parser.WhileloopContext stmt) {
Expression expr = convert(stmt.parExpression().expression());
Statement block = convert(stmt.statement());

2
src/main/java/de/dhbwstuttgart/parser/SyntaxTreeGenerator/TypeGenerator.java
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@ -65,6 +65,8 @@ public class TypeGenerator {
return new RefType(ASTFactory.createClass(Boolean.class).getClassName(), typeContext.getStart());
case "int":
return new RefType(ASTFactory.createClass(Integer.class).getClassName(), typeContext.getStart());
case "double":
return new RefType(ASTFactory.createClass(Double.class).getClassName(), typeContext.getStart());
default:
throw new NotImplementedException();
}

5
src/main/java/de/dhbwstuttgart/syntaxtree/statement/Expression.java
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@ -9,9 +9,8 @@ import de.dhbwstuttgart.typeinference.assumptions.TypeInferenceBlockInformation;
import de.dhbwstuttgart.typeinference.constraints.ConstraintSet;
import org.antlr.v4.runtime.Token;
public abstract class Expression extends TypableStatement
{
public Expression(RefTypeOrTPHOrWildcardOrGeneric type, Token offset){
public abstract class Expression extends TypableStatement {
public Expression(RefTypeOrTPHOrWildcardOrGeneric type, Token offset) {
super(type, offset);
}
}

31
src/main/java/de/dhbwstuttgart/syntaxtree/statement/RecordPattern.java
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@ -0,0 +1,31 @@
package de.dhbwstuttgart.syntaxtree.statement;
import java.util.ArrayList;
import java.util.List;
import org.antlr.v4.runtime.Token;
import de.dhbwstuttgart.syntaxtree.type.RefTypeOrTPHOrWildcardOrGeneric;
public class RecordPattern extends Pattern {
private List<Pattern> subPattern = new ArrayList<>();
public RecordPattern(String name, RefTypeOrTPHOrWildcardOrGeneric type, Token offset) {
super(name, type, offset);
}
public RecordPattern(List<Pattern> subPattern, String name, RefTypeOrTPHOrWildcardOrGeneric type, Token offset) {
super(name, type, offset);
this.subPattern = subPattern;
}
public List<Pattern> getSubPattern() {
return this.subPattern;
}
public void addSubPattern(Pattern newPattern) {
this.subPattern.add(newPattern);
}
}