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package com.oracle.truffle.js.nodes.access;

import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.object.DynamicObject;
import com.oracle.truffle.js.nodes.JavaScriptBaseNode;
import com.oracle.truffle.js.nodes.cast.JSToIntegerAsIntNode;
import com.oracle.truffle.js.runtime.JSContext;
import com.oracle.truffle.js.runtime.JSErrorType;
import com.oracle.truffle.js.runtime.builtins.JSError;

public abstract class ErrorStackTraceLimitNode extends JavaScriptBaseNode {
    private final JSContext context;
    @Child private PropertyGetNode getStackTraceLimit;
    @Child private JSToIntegerAsIntNode toInteger;

    protected ErrorStackTraceLimitNode(JSContext context) {
        this.context = context;
        this.getStackTraceLimit = PropertyGetNode.create(JSError.STACK_TRACE_LIMIT_PROPERTY_NAME, false, context);
        this.toInteger = JSToIntegerAsIntNode.create();
    }

    public static ErrorStackTraceLimitNode create(JSContext context) {
        return ErrorStackTraceLimitNodeGen.create(context);
    }

    @Specialization
    public int doInt() {
        DynamicObject errorConstructor = context.getRealm().getErrorConstructor(JSErrorType.Error);
        return Math.max(0, toInteger.executeInt(getStackTraceLimit.getValue(errorConstructor)));
    }

    public abstract int executeInt();

}