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Code Issues Releases Wiki Activity

Add operator types.

This commit is contained in:
Danila Fedorin 2017-07-28 10:26:25 -07:00
parent c9fad36d16
commit 42393ca6a6
5 changed files with 40 additions and 8 deletions
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14
src/org/nwapw/abacus/function/Operator.java
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@ -9,6 +9,10 @@ public class Operator {
* The associativity of the operator.
*/
private OperatorAssociativity associativity;
/**
* The type of this operator.
*/
private OperatorType type;
/**
* The precedence of the operator.
*/
@ -24,7 +28,7 @@ public class Operator {
* @param precedence the precedence of the operator.
* @param function the function that the operator calls.
*/
public Operator(OperatorAssociativity associativity, int precedence, Function function){
public Operator(OperatorAssociativity associativity, OperatorType operatorType, int precedence, Function function){
this.associativity = associativity;
this.precedence = precedence;
this.function = function;
@ -38,6 +42,14 @@ public class Operator {
return associativity;
}
/**
* Gets the operator's type.
* @return the type.
*/
public OperatorType getType() {
return type;
}
/**
* Gets the operator's precedence.
* @return the precedence.

8
src/org/nwapw/abacus/function/OperatorType.java Normal file
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@ -0,0 +1,8 @@
package org.nwapw.abacus.function;
/**
* The type of an operator, describing how it should behave.
*/
public enum OperatorType {
BINARY_INFIX, UNARY_POSTFIX
}

11
src/org/nwapw/abacus/plugin/StandardPlugin.java
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@ -3,6 +3,7 @@ package org.nwapw.abacus.plugin;
import org.nwapw.abacus.function.Function;
import org.nwapw.abacus.function.Operator;
import org.nwapw.abacus.function.OperatorAssociativity;
import org.nwapw.abacus.function.OperatorType;
import org.nwapw.abacus.number.NaiveNumber;
import org.nwapw.abacus.number.NumberInterface;
@ -20,7 +21,7 @@ public class StandardPlugin extends Plugin {
@Override
public void onEnable() {
registerOperator("+", new Operator(OperatorAssociativity.LEFT, 0, new Function() {
registerOperator("+", new Operator(OperatorAssociativity.LEFT, OperatorType.BINARY_INFIX, 0, new Function() {
@Override
protected boolean matchesParams(NumberInterface[] params) {
return params.length >= 1;
@ -36,7 +37,7 @@ public class StandardPlugin extends Plugin {
}
}));
registerOperator("-", new Operator(OperatorAssociativity.LEFT, 0, new Function() {
registerOperator("-", new Operator(OperatorAssociativity.LEFT, OperatorType.BINARY_INFIX, 0, new Function() {
@Override
protected boolean matchesParams(NumberInterface[] params) {
return params.length == 2;
@ -48,7 +49,7 @@ public class StandardPlugin extends Plugin {
}
}));
registerOperator("*", new Operator(OperatorAssociativity.LEFT, 1, new Function() {
registerOperator("*", new Operator(OperatorAssociativity.LEFT, OperatorType.BINARY_INFIX,1, new Function() {
@Override
protected boolean matchesParams(NumberInterface[] params) {
return params.length >= 1;
@ -64,7 +65,7 @@ public class StandardPlugin extends Plugin {
}
}));
registerOperator("/", new Operator(OperatorAssociativity.LEFT, 1, new Function() {
registerOperator("/", new Operator(OperatorAssociativity.LEFT, OperatorType.BINARY_INFIX,1, new Function() {
@Override
protected boolean matchesParams(NumberInterface[] params) {
return params.length == 2;
@ -76,7 +77,7 @@ public class StandardPlugin extends Plugin {
}
}));
registerOperator("^", new Operator(OperatorAssociativity.RIGHT, 2, new Function() {
registerOperator("^", new Operator(OperatorAssociativity.RIGHT, OperatorType.BINARY_INFIX, 2, new Function() {
@Override
protected boolean matchesParams(NumberInterface[] params) {
return params.length == 2;

10
src/org/nwapw/abacus/tree/TreeBuilder.java
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@ -1,6 +1,7 @@
package org.nwapw.abacus.tree;
import org.nwapw.abacus.function.OperatorAssociativity;
import org.nwapw.abacus.function.OperatorType;
import org.nwapw.abacus.lexing.Lexer;
import org.nwapw.abacus.lexing.pattern.Match;
import org.nwapw.abacus.lexing.pattern.Pattern;
@ -24,6 +25,10 @@ public class TreeBuilder {
* The map of operator associativity.
*/
private Map<String, OperatorAssociativity> associativityMap;
/**
* The map of operator types.
*/
private Map<String, OperatorType> typeMap;
/**
* Comparator used to sort token types.
@ -43,6 +48,7 @@ public class TreeBuilder {
}};
precedenceMap = new HashMap<>();
associativityMap = new HashMap<>();
typeMap = new HashMap<>();
}
/**
@ -59,10 +65,12 @@ public class TreeBuilder {
* @param precedence the precedence of the operator.
* @param associativity the associativity of the operator.
*/
public void registerOperator(String operator, int precedence, OperatorAssociativity associativity){
public void registerOperator(String operator, OperatorAssociativity associativity,
OperatorType operatorType, int precedence){
lexer.register(Pattern.sanitize(operator), TokenType.OP);
precedenceMap.put(operator, precedence);
associativityMap.put(operator, associativity);
typeMap.put(operator, operatorType);
}
/**

5
src/org/nwapw/abacus/window/Window.java
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@ -269,7 +269,10 @@ public class Window extends JFrame implements PluginListener {
}
for(String operator : manager.getAllOperators()){
Operator operatorObject = manager.operatorFor(operator);
builder.registerOperator(operator, operatorObject.getPrecedence(), operatorObject.getAssociativity());
builder.registerOperator(operator,
operatorObject.getAssociativity(),
operatorObject.getType(),
operatorObject.getPrecedence());
}
}