mirror of
https://github.com/aNNiMON/Own-Programming-Language-Tutorial.git
synced 2024-09-20 00:34:20 +03:00
Improve errors displaying for container expressions
This commit is contained in:
parent
d223bbbd0b
commit
f1772746cc
@ -9,9 +9,9 @@ final class std_range implements Function {
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public Value execute(Value[] args) {
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public Value execute(Value[] args) {
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Arguments.checkRange(1, 3, args.length);
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Arguments.checkRange(1, 3, args.length);
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return switch (args.length) {
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return switch (args.length) {
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default -> RangeValue.of(0, getLong(args[0]), 1);
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case 2 -> RangeValue.of(getLong(args[0]), getLong(args[1]), 1);
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case 2 -> RangeValue.of(getLong(args[0]), getLong(args[1]), 1);
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case 3 -> RangeValue.of(getLong(args[0]), getLong(args[1]), getLong(args[2]));
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case 3 -> RangeValue.of(getLong(args[0]), getLong(args[1]), getLong(args[2]));
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default -> RangeValue.of(0, getLong(args[0]), 1);
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};
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};
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}
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}
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@ -41,9 +41,13 @@ final class std_range implements Function {
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this.from = from;
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this.from = from;
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this.to = to;
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this.to = to;
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this.step = step;
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this.step = step;
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final long base = (from < to) ? (to - from) : (from - to);
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final long base = (from < to)
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? Math.subtractExact(to, from)
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: Math.subtractExact(from, to);
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final long absStep = (step < 0) ? -step : step;
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final long absStep = (step < 0) ? -step : step;
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this.size = (int) (base / absStep + (base % absStep == 0 ? 0 : 1));
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final long longSize = (base / absStep + (base % absStep == 0 ? 0 : 1));
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this.size = longSize > Integer.MAX_VALUE ? Integer.MAX_VALUE : (int) longSize;
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}
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}
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@Override
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@Override
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@ -67,8 +71,9 @@ final class std_range implements Function {
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private boolean isIntegerRange() {
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private boolean isIntegerRange() {
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if (to > 0) {
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if (to > 0) {
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return (from > Integer.MIN_VALUE && to < Integer.MAX_VALUE);
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return (from > Integer.MIN_VALUE && to < Integer.MAX_VALUE);
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} else {
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return (to > Integer.MIN_VALUE && from < Integer.MAX_VALUE);
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}
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}
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return (to > Integer.MIN_VALUE && from < Integer.MAX_VALUE);
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}
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}
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@Override
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@Override
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@ -78,10 +83,12 @@ final class std_range implements Function {
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@Override
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@Override
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public Value get(int index) {
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public Value get(int index) {
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long value = from + index * step;
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if (isIntegerRange()) {
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if (isIntegerRange()) {
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return NumberValue.of((int) (from + index * step));
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return NumberValue.of((int) (value));
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} else {
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return NumberValue.of(value);
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}
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}
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return NumberValue.of(from + (long) index * step);
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}
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}
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@Override
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@Override
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@ -1,8 +1,14 @@
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package com.annimon.ownlang.exceptions;
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package com.annimon.ownlang.exceptions;
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import com.annimon.ownlang.util.Range;
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public final class TypeException extends OwnLangRuntimeException {
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public final class TypeException extends OwnLangRuntimeException {
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public TypeException(String message) {
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public TypeException(String message) {
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super(message);
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super(message);
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}
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}
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public TypeException(String message, Range range) {
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super(message, range);
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}
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}
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}
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@ -353,10 +353,10 @@ public final class Parser {
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if (lookMatch(0, TokenType.LPAREN)) {
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if (lookMatch(0, TokenType.LPAREN)) {
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// next function call
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// next function call
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return functionChain(new ContainerAccessExpression(expr, indices));
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return functionChain(new ContainerAccessExpression(expr, indices, getRange()));
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}
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}
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// container access
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// container access
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return new ContainerAccessExpression(expr, indices);
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return new ContainerAccessExpression(expr, indices, getRange());
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}
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}
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return expr;
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return expr;
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}
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}
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@ -532,7 +532,7 @@ public final class Parser {
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final BinaryExpression.Operator op = ASSIGN_OPERATORS.get(currentType);
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final BinaryExpression.Operator op = ASSIGN_OPERATORS.get(currentType);
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final Node expression = expression();
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final Node expression = expression();
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return new AssignmentExpression(op, (Accessible) targetExpr, expression);
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return new AssignmentExpression(op, (Accessible) targetExpr, expression, getRange(position, index));
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}
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}
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private Node ternary() {
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private Node ternary() {
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@ -765,9 +765,7 @@ public final class Parser {
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args.add(expression());
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args.add(expression());
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match(TokenType.COMMA);
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match(TokenType.COMMA);
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}
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}
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final var expr = new ObjectCreationExpression(className, args);
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return new ObjectCreationExpression(className, args, getRange(startTokenIndex, index - 1));
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expr.setRange(getRange(startTokenIndex, index - 1));
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return expr;
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}
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}
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return unary();
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return unary();
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@ -859,12 +857,13 @@ public final class Parser {
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if (!match(TokenType.WORD)) return null;
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if (!match(TokenType.WORD)) return null;
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final List<Node> indices = variableSuffix();
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final List<Node> indices = variableSuffix();
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final var variable = new VariableExpression(current.text());
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variable.setRange(getRange(startTokenIndex, index - 1));
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if (indices == null || indices.isEmpty()) {
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if (indices == null || indices.isEmpty()) {
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final var variable = new VariableExpression(current.text());
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variable.setRange(getRange(startTokenIndex, index - 1));
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return variable;
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return variable;
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} else {
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return new ContainerAccessExpression(variable, indices, variable.getRange());
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}
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}
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return new ContainerAccessExpression(current.text(), indices);
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}
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}
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private List<Node> variableSuffix() {
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private List<Node> variableSuffix() {
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@ -905,15 +904,16 @@ public final class Parser {
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if (lookMatch(1, TokenType.WORD) && lookMatch(2, TokenType.LPAREN)) {
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if (lookMatch(1, TokenType.WORD) && lookMatch(2, TokenType.LPAREN)) {
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match(TokenType.DOT);
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match(TokenType.DOT);
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return functionChain(new ContainerAccessExpression(
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return functionChain(new ContainerAccessExpression(
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strExpr, Collections.singletonList(
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strExpr,
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new ValueExpression(consume(TokenType.WORD).text())
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Collections.singletonList(new ValueExpression(consume(TokenType.WORD).text())),
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)));
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getRange()
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));
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}
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}
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final List<Node> indices = variableSuffix();
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final List<Node> indices = variableSuffix();
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if (indices == null || indices.isEmpty()) {
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if (indices == null || indices.isEmpty()) {
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return strExpr;
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return strExpr;
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}
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}
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return new ContainerAccessExpression(strExpr, indices);
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return new ContainerAccessExpression(strExpr, indices, getRange());
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}
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}
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return strExpr;
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return strExpr;
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}
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}
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@ -1,22 +1,32 @@
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package com.annimon.ownlang.parser.ast;
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package com.annimon.ownlang.parser.ast;
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import com.annimon.ownlang.exceptions.OwnLangRuntimeException;
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import com.annimon.ownlang.lib.EvaluableValue;
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import com.annimon.ownlang.lib.EvaluableValue;
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import com.annimon.ownlang.lib.Value;
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import com.annimon.ownlang.lib.Value;
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import com.annimon.ownlang.util.Range;
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import com.annimon.ownlang.util.SourceLocation;
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/**
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/**
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*
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*
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* @author aNNiMON
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* @author aNNiMON
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*/
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*/
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public final class AssignmentExpression extends InterruptableNode implements Statement, EvaluableValue {
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public final class AssignmentExpression extends InterruptableNode implements Statement, EvaluableValue, SourceLocation {
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public final Accessible target;
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public final Accessible target;
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public final BinaryExpression.Operator operation;
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public final BinaryExpression.Operator operation;
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public final Node expression;
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public final Node expression;
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private final Range range;
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public AssignmentExpression(BinaryExpression.Operator operation, Accessible target, Node expr) {
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public AssignmentExpression(BinaryExpression.Operator operation, Accessible target, Node expr, Range range) {
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this.operation = operation;
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this.operation = operation;
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this.target = target;
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this.target = target;
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this.expression = expr;
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this.expression = expr;
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this.range = range;
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}
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@Override
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public Range getRange() {
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return range;
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}
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}
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@Override
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@Override
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@ -24,13 +34,21 @@ public final class AssignmentExpression extends InterruptableNode implements Sta
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super.interruptionCheck();
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super.interruptionCheck();
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if (operation == null) {
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if (operation == null) {
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// Simple assignment
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// Simple assignment
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return target.set(expression.eval());
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return target.set(checkNonNull(expression.eval(), "Assignment expression"));
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}
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}
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final Node expr1 = new ValueExpression(target.get());
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final Node expr1 = new ValueExpression(checkNonNull(target.get(), "Assignment target"));
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final Node expr2 = new ValueExpression(expression.eval());
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final Node expr2 = new ValueExpression(checkNonNull(expression.eval(), "Assignment expression"));
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return target.set(new BinaryExpression(operation, expr1, expr2).eval());
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final Value result = new BinaryExpression(operation, expr1, expr2).eval();
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return target.set(result);
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}
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}
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private Value checkNonNull(Value value, String message) {
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if (value == null) {
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throw new OwnLangRuntimeException(message + " evaluates to null", range);
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}
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return value;
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}
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@Override
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@Override
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public void accept(Visitor visitor) {
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public void accept(Visitor visitor) {
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visitor.visit(this);
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visitor.visit(this);
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@ -1,7 +1,10 @@
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package com.annimon.ownlang.parser.ast;
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package com.annimon.ownlang.parser.ast;
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import com.annimon.ownlang.exceptions.OwnLangRuntimeException;
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import com.annimon.ownlang.exceptions.TypeException;
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import com.annimon.ownlang.exceptions.TypeException;
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import com.annimon.ownlang.lib.*;
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import com.annimon.ownlang.lib.*;
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import com.annimon.ownlang.util.Range;
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import com.annimon.ownlang.util.SourceLocation;
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import java.util.List;
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import java.util.List;
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import java.util.regex.Pattern;
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import java.util.regex.Pattern;
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@ -9,7 +12,7 @@ import java.util.regex.Pattern;
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*
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*
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* @author aNNiMON
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* @author aNNiMON
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*/
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*/
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public final class ContainerAccessExpression implements Node, Accessible {
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public final class ContainerAccessExpression implements Node, Accessible, SourceLocation {
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private static final Pattern PATTERN_SIMPLE_INDEX = Pattern.compile("^\"[a-zA-Z$_]\\w*\"");
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private static final Pattern PATTERN_SIMPLE_INDEX = Pattern.compile("^\"[a-zA-Z$_]\\w*\"");
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@ -17,15 +20,13 @@ public final class ContainerAccessExpression implements Node, Accessible {
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public final List<Node> indices;
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public final List<Node> indices;
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private final boolean[] simpleIndices;
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private final boolean[] simpleIndices;
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private final boolean rootIsVariable;
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private final boolean rootIsVariable;
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private final Range range;
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public ContainerAccessExpression(String variable, List<Node> indices) {
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public ContainerAccessExpression(Node root, List<Node> indices, Range range) {
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this(new VariableExpression(variable), indices);
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}
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public ContainerAccessExpression(Node root, List<Node> indices) {
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rootIsVariable = root instanceof VariableExpression;
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rootIsVariable = root instanceof VariableExpression;
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this.root = root;
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this.root = root;
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this.indices = indices;
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this.indices = indices;
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this.range = range;
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simpleIndices = precomputeSimpleIndices();
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simpleIndices = precomputeSimpleIndices();
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}
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}
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@ -33,6 +34,11 @@ public final class ContainerAccessExpression implements Node, Accessible {
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return rootIsVariable;
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return rootIsVariable;
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}
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}
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@Override
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public Range getRange() {
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return range;
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}
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public Node getRoot() {
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public Node getRoot() {
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return root;
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return root;
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}
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}
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@ -47,11 +53,24 @@ public final class ContainerAccessExpression implements Node, Accessible {
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final Value container = getContainer();
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final Value container = getContainer();
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final Value lastIndex = lastIndex();
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final Value lastIndex = lastIndex();
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return switch (container.type()) {
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return switch (container.type()) {
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case Types.ARRAY -> ((ArrayValue) container).get(lastIndex);
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case Types.ARRAY -> {
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final ArrayValue arr = (ArrayValue) container;
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final int size = arr.size();
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if (lastIndex.type() != Types.NUMBER) {
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yield arr.get(lastIndex);
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} else {
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final int index = lastIndex.asInt();
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if (0 <= index && index < size) {
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yield arr.get(index);
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} else {
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throw outOfBounds(index, size);
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}
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}
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}
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case Types.MAP -> ((MapValue) container).get(lastIndex);
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case Types.MAP -> ((MapValue) container).get(lastIndex);
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case Types.STRING -> ((StringValue) container).access(lastIndex);
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case Types.STRING -> ((StringValue) container).access(lastIndex);
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case Types.CLASS -> ((ClassInstance) container).access(lastIndex);
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case Types.CLASS -> ((ClassInstance) container).access(lastIndex);
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default -> throw new TypeException("Array or map expected. Got " + Types.typeToString(container.type()));
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default -> throw arrayOrMapExpected(container, " while accessing a container");
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};
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};
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}
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}
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@ -60,14 +79,23 @@ public final class ContainerAccessExpression implements Node, Accessible {
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final Value container = getContainer();
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final Value container = getContainer();
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final Value lastIndex = lastIndex();
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final Value lastIndex = lastIndex();
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switch (container.type()) {
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switch (container.type()) {
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case Types.ARRAY -> ((ArrayValue) container).set(lastIndex.asInt(), value);
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case Types.ARRAY -> {
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final ArrayValue arr = (ArrayValue) container;
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final int size = arr.size();
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final int index = lastIndex.asInt();
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if (0 <= index && index < size) {
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arr.set(index, value);
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} else {
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throw outOfBounds(index, size);
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}
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}
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case Types.MAP -> ((MapValue) container).set(lastIndex, value);
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case Types.MAP -> ((MapValue) container).set(lastIndex, value);
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case Types.CLASS -> ((ClassInstance) container).set(lastIndex, value);
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case Types.CLASS -> ((ClassInstance) container).set(lastIndex, value);
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default -> throw new TypeException("Array or map expected. Got " + container.type());
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default -> throw arrayOrMapExpected(container, " while setting a value to container");
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}
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}
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return value;
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return value;
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}
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}
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public Value getContainer() {
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public Value getContainer() {
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Value container = root.eval();
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Value container = root.eval();
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final int last = indices.size() - 1;
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final int last = indices.size() - 1;
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@ -76,7 +104,7 @@ public final class ContainerAccessExpression implements Node, Accessible {
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container = switch (container.type()) {
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container = switch (container.type()) {
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case Types.ARRAY -> ((ArrayValue) container).get(index.asInt());
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case Types.ARRAY -> ((ArrayValue) container).get(index.asInt());
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case Types.MAP -> ((MapValue) container).get(index);
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case Types.MAP -> ((MapValue) container).get(index);
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default -> throw new TypeException("Array or map expected");
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default -> throw arrayOrMapExpected(container, " while resolving a container");
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};
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};
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}
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}
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return container;
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return container;
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@ -96,6 +124,17 @@ public final class ContainerAccessExpression implements Node, Accessible {
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}
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}
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return (MapValue) value;
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return (MapValue) value;
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}
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}
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private OwnLangRuntimeException outOfBounds(int index, int size) {
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return new OwnLangRuntimeException(
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"Index %d is out of bounds for array length %d".formatted(index, size), range);
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}
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private TypeException arrayOrMapExpected(Value v, String message) {
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return new TypeException("Array or map expected"
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+ (message == null ? "" : message)
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+ ". Got " + Types.typeToString(v.type()), range);
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}
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@Override
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@Override
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public void accept(Visitor visitor) {
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public void accept(Visitor visitor) {
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@ -11,14 +11,11 @@ public final class ObjectCreationExpression implements Node, SourceLocation {
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public final String className;
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public final String className;
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public final List<Node> constructorArguments;
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public final List<Node> constructorArguments;
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private Range range;
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private final Range range;
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public ObjectCreationExpression(String className, List<Node> constructorArguments) {
|
public ObjectCreationExpression(String className, List<Node> constructorArguments, Range range) {
|
||||||
this.className = className;
|
this.className = className;
|
||||||
this.constructorArguments = constructorArguments;
|
this.constructorArguments = constructorArguments;
|
||||||
}
|
|
||||||
|
|
||||||
public void setRange(Range range) {
|
|
||||||
this.range = range;
|
this.range = range;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -31,7 +31,7 @@ public abstract class OptimizationVisitor<T> implements ResultVisitor<Node, T> {
|
|||||||
final Node exprNode = s.expression.accept(this, t);
|
final Node exprNode = s.expression.accept(this, t);
|
||||||
final Node targetNode = s.target.accept(this, t);
|
final Node targetNode = s.target.accept(this, t);
|
||||||
if ( (exprNode != s.expression || targetNode != s.target) && (targetNode instanceof Accessible) ) {
|
if ( (exprNode != s.expression || targetNode != s.target) && (targetNode instanceof Accessible) ) {
|
||||||
return new AssignmentExpression(s.operation, (Accessible) targetNode, exprNode);
|
return new AssignmentExpression(s.operation, (Accessible) targetNode, exprNode, s.getRange());
|
||||||
}
|
}
|
||||||
return s;
|
return s;
|
||||||
}
|
}
|
||||||
@ -79,7 +79,7 @@ public abstract class OptimizationVisitor<T> implements ResultVisitor<Node, T> {
|
|||||||
final AssignmentExpression newField;
|
final AssignmentExpression newField;
|
||||||
if (fieldExpr != field.expression) {
|
if (fieldExpr != field.expression) {
|
||||||
changed = true;
|
changed = true;
|
||||||
newField = new AssignmentExpression(field.operation, field.target, fieldExpr);
|
newField = new AssignmentExpression(field.operation, field.target, fieldExpr, field.getRange());
|
||||||
} else {
|
} else {
|
||||||
newField = field;
|
newField = field;
|
||||||
}
|
}
|
||||||
@ -126,7 +126,7 @@ public abstract class OptimizationVisitor<T> implements ResultVisitor<Node, T> {
|
|||||||
indices.add(node);
|
indices.add(node);
|
||||||
}
|
}
|
||||||
if (changed) {
|
if (changed) {
|
||||||
return new ContainerAccessExpression(root, indices);
|
return new ContainerAccessExpression(root, indices, s.getRange());
|
||||||
}
|
}
|
||||||
return s;
|
return s;
|
||||||
}
|
}
|
||||||
@ -356,7 +356,7 @@ public abstract class OptimizationVisitor<T> implements ResultVisitor<Node, T> {
|
|||||||
}
|
}
|
||||||
|
|
||||||
if (changed) {
|
if (changed) {
|
||||||
return new ObjectCreationExpression(s.className, args);
|
return new ObjectCreationExpression(s.className, args, s.getRange());
|
||||||
}
|
}
|
||||||
return s;
|
return s;
|
||||||
}
|
}
|
||||||
|
@ -44,7 +44,7 @@ public final class ASTHelper {
|
|||||||
}
|
}
|
||||||
|
|
||||||
public static AssignmentExpression assign(BinaryExpression.Operator op, Accessible accessible, Node expr) {
|
public static AssignmentExpression assign(BinaryExpression.Operator op, Accessible accessible, Node expr) {
|
||||||
return new AssignmentExpression(op, accessible, expr);
|
return new AssignmentExpression(op, accessible, expr, null);
|
||||||
}
|
}
|
||||||
|
|
||||||
public static BinaryExpression operator(BinaryExpression.Operator op, Node left, Node right) {
|
public static BinaryExpression operator(BinaryExpression.Operator op, Node left, Node right) {
|
||||||
|
Loading…
Reference in New Issue
Block a user