1957 lines
56 KiB
JavaScript
1957 lines
56 KiB
JavaScript
// runtime.js: the main runtime library for whalesong.
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//
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if(this['plt'] === undefined) { this['plt'] = {}; }
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// All of the values here are namespaced under "plt.runtime".
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(function(scope) {
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var runtime = {};
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scope['runtime'] = runtime;
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//////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////
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// We try to isolate the effect of external modules: all the identifiers we
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// pull from external modules should be listed here, and should otherwise not
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// show up outside this section!
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var isNumber = plt.baselib.numbers.isNumber;
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var isNatural = plt.baselib.numbers.isNatural;
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var isReal = plt.baselib.numbers.isReal;
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var isPair = plt.baselib.lists.isPair;
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var isList = plt.baselib.lists.isList;
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var isVector = plt.baselib.vectors.isVector;
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var isString = plt.baselib.strings.isString;
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var isSymbol = plt.baselib.symbols.isSymbol;
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var isNonNegativeReal = plt.baselib.numbers.isNonNegativeReal;
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var equals = plt.baselib.equality.equals;
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var NULL = plt.baselib.lists.EMPTY;
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var VOID = plt.baselib.constants.VOID_VALUE;
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var EOF = plt.baselib.constants.EOF_VALUE;
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var NEGATIVE_ZERO = plt.baselib.numbers.negative_zero;
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var INF = plt.baselib.numbers.inf;
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var NEGATIVE_INF = plt.baselib.numbers.negative_inf;
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var NAN = plt.baselib.numbers.nan;
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var makeFloat = plt.baselib.numbers.makeFloat;
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var makeRational = plt.baselib.numbers.makeRational;
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var makeBignum = plt.baselib.numbers.makeBignum;
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var makeComplex = plt.baselib.numbers.makeComplex;
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var makeSymbol = plt.baselib.symbols.makeSymbol;
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var makeBox = plt.baselib.boxes.makeBox;
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var isBox = plt.baselib.boxes.isBox;
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var makeVector = plt.baselib.vectors.makeVector;
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var makeList = plt.baselib.lists.makeList;
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var makePair = plt.baselib.lists.makePair;
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var Closure = plt.baselib.functions.Closure;
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var finalizeClosureCall = plt.baselib.functions.finalizeClosureCall;
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var makePrimitiveProcedure = plt.baselib.functions.makePrimitiveProcedure;
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// Other helpers
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var withArguments = plt.baselib.withArguments;
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var heir = plt.baselib.heir;
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var makeClassPredicate = plt.baselib.makeClassPredicate;
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var toDomNode = plt.baselib.format.toDomNode;
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var toWrittenString = plt.baselib.format.toWrittenString;
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var toDisplayedString = plt.baselib.format.toDisplayedString;
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// Frame structures.
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var Frame = plt.baselib.frames.Frame;
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var CallFrame = plt.baselib.frames.CallFrame;
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var PromptFrame = plt.baselib.frames.PromptFrame;
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// Module structure
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var ModuleRecord = plt.baselib.modules.ModuleRecord;
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// Ports
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var OutputPort = plt.baselib.ports.OutputPort;
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var isOutputPort = plt.baselib.ports.isOutputPort;
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var StandardOutputPort = plt.baselib.ports.StandardOutputPort;
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var StandardErrorPort = plt.baselib.ports.StandardErrorPort;
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var OutputStringPort = plt.baselib.ports.OutputStringPort;
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var isOutputStringPort = plt.baselib.ports.isOutputStringPort;
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// Exceptions and error handling.
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var raise = plt.baselib.exceptions.raise;
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var raiseUnboundToplevelError = plt.baselib.exceptions.raiseUnboundToplevelError;
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var raiseArgumentTypeError = plt.baselib.exceptions.raiseArgumentTypeError;
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var raiseContextExpectedValuesError = plt.baselib.exceptions.raiseContextExpectedValuesError;
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var raiseArityMismatchError = plt.baselib.exceptions.raiseArityMismatchError;
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var raiseOperatorApplicationError = plt.baselib.exceptions.raiseOperatorApplicationError;
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var raiseOperatorIsNotPrimitiveProcedure = plt.baselib.exceptions.raiseOperatorIsNotPrimitiveProcedure;
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var raiseOperatorIsNotClosure = plt.baselib.exceptions.raiseOperatorIsNotClosure;
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var raiseUnimplementedPrimitiveError = plt.baselib.exceptions.raiseUnimplementedPrimitiveError;
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var testArgument = plt.baselib.check.testArgument;
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var testArity = plt.baselib.check.testArity;
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var makeCheckArgumentType = plt.baselib.check.makeCheckArgumentType;
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var checkOutputPort = plt.baselib.check.checkOutputPort;
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var checkString = plt.baselib.check.checkString;
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var checkSymbol = plt.baselib.check.checkSymbol;
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var checkByte = plt.baselib.check.checkByte;
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var checkProcedure = plt.baselib.check.checkProcedure;
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var checkNumber = plt.baselib.check.checkNumber;
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var checkReal = plt.baselib.check.checkReal;
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var checkNonNegativeReal = plt.baselib.check.checkNonNegativeReal;
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var checkNatural = plt.baselib.check.checkNatural;
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var checkNaturalInRange = plt.baselib.check.checkNaturalInRange;
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var checkInteger = plt.baselib.check.checkInteger;
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var checkRational = plt.baselib.check.checkRational;
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var checkPair = plt.baselib.check.checkPair;
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var checkList = plt.baselib.check.checkList;
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var checkVector = plt.baselib.check.checkVector;
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var checkBox = plt.baselib.check.checkBox;
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var checkMutableBox = plt.baselib.check.checkMutableBox;
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var checkInspector = plt.baselib.check.checkInspector;
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//////////////////////////////////////////////////////////////////////]
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// The MACHINE
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// This value will be dynamically determined.
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// See findStackLimit later in this file.
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var STACK_LIMIT_ESTIMATE = 100;
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var Machine = function() {
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this.callsBeforeTrampoline = STACK_LIMIT_ESTIMATE;
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this.val = undefined;
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this.proc = undefined;
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this.argcount = undefined;
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this.env = [];
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this.control = []; // Arrayof (U Frame CallFrame PromptFrame)
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this.running = false;
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this.modules = {}; // String -> ModuleRecord
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this.mainModules = []; // Arrayof String
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this.params = {
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// currentDisplayer: DomNode -> Void
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// currentDisplayer is responsible for displaying to the browser.
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'currentDisplayer': function(MACHINE, domNode) {
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$(domNode).appendTo(document.body);
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},
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// currentErrorDisplayer: DomNode -> Void
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// currentErrorDisplayer is responsible for displaying errors to the browser.
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'currentErrorDisplayer': function(MACHINE, domNode) {
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$(domNode).appendTo(document.body);
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},
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'currentInspector': plt.baselib.inspectors.DEFAULT_INSPECTOR,
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'currentOutputPort': new StandardOutputPort(),
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'currentErrorPort': new StandardErrorPort(),
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'currentSuccessHandler': function(MACHINE) {},
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'currentErrorHandler': function(MACHINE, exn) {
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MACHINE.params.currentErrorDisplayer(
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MACHINE,
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toDomNode(exn));
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},
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'currentNamespace': {},
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// These parameters control how often
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// control yields back to the browser
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// for response. The implementation is a
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// simple PID controller.
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//
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// To tune this, adjust desiredYieldsPerSecond.
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// Do no touch numBouncesBeforeYield or
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// maxNumBouncesBeforeYield, because those
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// are adjusted automatically by the
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// recomputeMaxNumBouncesBeforeYield
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// procedure.
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'desiredYieldsPerSecond': 5,
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'numBouncesBeforeYield': 2000, // self-adjusting
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'maxNumBouncesBeforeYield': 2000, // self-adjusting
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'currentPrint': defaultCurrentPrint
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};
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this.primitives = Primitives;
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};
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// Approximately find the stack limit.
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// This function assumes, on average, five variables or
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// temporaries per stack frame.
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// This will never report a number greater than MAXIMUM_CAP.
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var findStackLimit = function(after) {
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var MAXIMUM_CAP = 32768;
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var n = 1;
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var limitDiscovered = false;
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setTimeout(
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function() {
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if(! limitDiscovered) {
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limitDiscovered = true;
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after(n);
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}
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},
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0);
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var loop1 = function(x, y, z, w, k) {
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// Ensure termination, just in case JavaScript ever
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// does eliminate stack limits.
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if (n >= MAXIMUM_CAP) { return; }
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n++;
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return 1 + loop2(y, z, w, k, x);
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};
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var loop2 = function(x, y, z, w, k) {
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n++;
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return 1 + loop1(y, z, w, k, x);
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};
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try {
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var dontCare = 1 + loop1(2, "seven", [1], {number: 8}, 2);
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} catch (e) {
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// ignore exceptions.
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}
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if (! limitDiscovered) {
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limitDiscovered = true;
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after(n);
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}
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};
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// Schedule a stack limit estimation. If it fails, no harm, no
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// foul (hopefully!)
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setTimeout(function() {
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findStackLimit(function(v) {
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// Trying to be a little conservative.
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STACK_LIMIT_ESTIMATE = Math.floor(v / 10);
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});
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},
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0);
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// captureControl implements the continuation-capturing part of
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// call/cc. It grabs the control frames up to (but not including) the
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// prompt tagged by the given tag.
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var captureControl = function(MACHINE, skip, tag) {
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var i;
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for (i = MACHINE.control.length - 1 - skip; i >= 0; i--) {
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if (MACHINE.control[i].tag === tag) {
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return MACHINE.control.slice(i + 1,
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MACHINE.control.length - skip);
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}
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}
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raise(MACHINE, new Error("captureControl: unable to find tag " + tag));
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};
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// restoreControl clears the control stack (up to, but not including the
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// prompt tagged by tag), and then appends the rest of the control frames.
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// At the moment, the rest of the control frames is assumed to be in the
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// top of the environment.
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var restoreControl = function(MACHINE, tag) {
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var i;
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for (i = MACHINE.control.length - 1; i >= 0; i--) {
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if (MACHINE.control[i].tag === tag) {
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MACHINE.control =
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MACHINE.control.slice(0, i+1).concat(
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MACHINE.env[MACHINE.env.length - 1]);
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return;
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}
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}
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raise(MACHINE, new Error("restoreControl: unable to find tag " + tag));
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};
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// Splices the list argument in the environment. Adjusts MACHINE.argcount
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// appropriately.
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var spliceListIntoStack = function(MACHINE, depth) {
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var lst = MACHINE.env[MACHINE.env.length - 1 - depth];
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var vals = [];
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while(lst !== NULL) {
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vals.push(lst.first);
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lst = lst.rest;
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}
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vals.reverse();
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MACHINE.env.splice.apply(MACHINE.env,
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[MACHINE.env.length - 1 - depth, 1].concat(vals));
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MACHINE.argcount = MACHINE.argcount + vals.length - 1;
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};
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// Unsplices a list from the MACHINE stack.
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var unspliceRestFromStack = function(MACHINE, depth, length) {
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var lst = NULL;
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var i;
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for (i = 0; i < length; i++) {
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lst = makePair(MACHINE.env[MACHINE.env.length - depth - length + i],
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lst);
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}
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MACHINE.env.splice(MACHINE.env.length - depth - length,
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length,
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lst);
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MACHINE.argcount = MACHINE.argcount - length + 1;
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};
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// recomputeGas: state number -> number
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var recomputeMaxNumBouncesBeforeYield = function(MACHINE, observedDelay) {
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// We'd like to see a delay of DESIRED_DELAY_BETWEEN_BOUNCES so
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// that we get MACHINE.params.desiredYieldsPerSecond bounces per
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// second.
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var DESIRED_DELAY_BETWEEN_BOUNCES =
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(1000 / MACHINE.params.desiredYieldsPerSecond);
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var ALPHA = 50;
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var delta = (ALPHA * ((DESIRED_DELAY_BETWEEN_BOUNCES -
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observedDelay) /
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DESIRED_DELAY_BETWEEN_BOUNCES));
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MACHINE.params.maxNumBouncesBeforeYield =
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Math.max(MACHINE.params.maxNumBouncesBeforeYield + delta,
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1);
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};
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var HaltError = function(onHalt) {
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// onHalt: MACHINE -> void
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this.onHalt = onHalt || function(MACHINE) {};
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};
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var Pause = function(onPause) {
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// onPause: MACHINE -> void
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this.onPause = onPause || function(MACHINE) {};
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};
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var PAUSE = function(onPause) {
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throw(new Pause(onPause));
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};
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//////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////
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// The toplevel trampoline.
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//
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//
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// trampoline: MACHINE (MACHINE -> void) -> void
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//
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// All evaluation in Racketland happens in the context of this
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// trampoline.
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//
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var trampoline = function(MACHINE, initialJump) {
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var thunk = initialJump;
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var startTime = (new Date()).valueOf();
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MACHINE.callsBeforeTrampoline = STACK_LIMIT_ESTIMATE;
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MACHINE.params.numBouncesBeforeYield =
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MACHINE.params.maxNumBouncesBeforeYield;
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MACHINE.running = true;
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while(true) {
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try {
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thunk(MACHINE);
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break;
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} catch (e) {
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// There are a few kinds of things that can get thrown
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// during racket evaluation:
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//
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// functions: this gets thrown if the Racket code
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// realizes that the number of bounces has grown too
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// large. The thrown function represents a restarter
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// function. The running flag remains true.
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//
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// Pause: causes the machine evaluation to pause, with
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// the expectation that it will restart momentarily.
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// The running flag on the machine will remain true.
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//
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// HaltError: causes evaluation to immediately halt.
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// We schedule the onHalt function of the HaltError to
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// call afterwards. The running flag on the machine
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// is set to false.
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//
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// Everything else: otherwise, we send the exception value
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// to the current error handler and exit.
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// The running flag is set to false.
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if (typeof(e) === 'function') {
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thunk = e;
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MACHINE.callsBeforeTrampoline = STACK_LIMIT_ESTIMATE;
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if (MACHINE.params.numBouncesBeforeYield-- < 0) {
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recomputeMaxNumBouncesBeforeYield(
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MACHINE,
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(new Date()).valueOf() - startTime);
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setTimeout(
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function() {
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trampoline(MACHINE, thunk);
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},
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0);
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return;
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} else {
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continue;
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}
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} else if (e instanceof Pause) {
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var restart = function(thunk) {
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setTimeout(
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function() { trampoline(MACHINE, thunk); },
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0);
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};
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e.onPause(restart);
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return;
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} else if (e instanceof HaltError) {
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MACHINE.running = false;
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e.onHalt(MACHINE);
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return;
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} else {
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// General error condition: just exit out
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// of the trampoline and call the current error handler.
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MACHINE.running = false;
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MACHINE.params.currentErrorHandler(MACHINE, e);
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return;
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}
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}
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}
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MACHINE.running = false;
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setTimeout(
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function() { MACHINE.params.currentSuccessHandler(MACHINE); },
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0);
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return;
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};
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//////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////
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var defaultCurrentPrint = new Closure(
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function(MACHINE) {
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if(--MACHINE.callsBeforeTrampoline < 0) {
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throw arguments.callee;
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}
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var oldArgcount = MACHINE.argcount;
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var elt = MACHINE.env[MACHINE.env.length - 1];
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var outputPort =
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MACHINE.params.currentOutputPort;
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if (elt !== VOID) {
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outputPort.writeDomNode(MACHINE, toDomNode(elt, 'print'));
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outputPort.writeDomNode(MACHINE, toDomNode("\n", 'display'));
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}
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MACHINE.argcount = oldArgcount;
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return finalizeClosureCall(MACHINE, VOID);
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},
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1,
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[],
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"printer");
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var VariableReference = function(prefix, pos) {
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this.prefix = prefix;
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this.pos = pos;
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};
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// A continuation prompt tag labels a prompt frame.
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var ContinuationPromptTag = function(name) {
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this.name = name;
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};
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// There is a single, distinguished default continuation prompt tag
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// that's used to wrap around toplevel prompts.
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var DEFAULT_CONTINUATION_PROMPT_TAG =
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new ContinuationPromptTag("default-continuation-prompt-tag");
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// Primitives are the set of primitive values. Not all primitives
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// are coded here; several of them (including call/cc) are injected by
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// the bootstrapping code in compiler/boostrapped-primitives.rkt
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var Primitives = {};
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var installPrimitiveProcedure = function(name, arity, f) {
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Primitives[name] = f;
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Primitives[name].arity = arity;
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Primitives[name].displayName = name;
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};
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var installPrimitiveClosure = function(name, arity, f) {
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Primitives[name] =
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new Closure(f, arity, [], name);
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};
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var installPrimitiveConstant = function(name, v) {
|
|
Primitives[name] = v;
|
|
};
|
|
|
|
|
|
|
|
installPrimitiveConstant('pi', plt.baselib.numbers.pi);
|
|
installPrimitiveConstant('e', plt.baselib.numbers.e);
|
|
installPrimitiveConstant('null', NULL);
|
|
installPrimitiveConstant('true', true);
|
|
installPrimitiveConstant('false', false);
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'display', makeList(1, 2),
|
|
function(MACHINE) {
|
|
var firstArg = MACHINE.env[MACHINE.env.length-1];
|
|
var outputPort = MACHINE.params.currentOutputPort;
|
|
if (MACHINE.argcount === 2) {
|
|
outputPort = checkOutputPort(MACHINE, 'display', 1);
|
|
}
|
|
outputPort.writeDomNode(MACHINE, toDomNode(firstArg, 'display'));
|
|
return VOID;
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'write-byte', makeList(1, 2),
|
|
function(MACHINE) {
|
|
var firstArg = checkByte(MACHINE, 'write-byte', 0);
|
|
var outputPort = MACHINE.params.currentOutputPort;
|
|
if (MACHINE.argcount === 2) {
|
|
outputPort = checkOutputPort(MACHINE, 'display', 1);
|
|
}
|
|
outputPort.writeDomNode(MACHINE, toDomNode(String.fromCharCode(firstArg), 'display'));
|
|
return VOID;
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'newline', makeList(0, 1),
|
|
function(MACHINE) {
|
|
var outputPort = MACHINE.params.currentOutputPort;
|
|
if (MACHINE.argcount === 1) {
|
|
outputPort = checkOutputPort(MACHINE, 'newline', 1);
|
|
}
|
|
outputPort.writeDomNode(MACHINE, toDomNode("\n", 'display'));
|
|
return VOID;
|
|
});
|
|
|
|
installPrimitiveProcedure(
|
|
'displayln',
|
|
makeList(1, 2),
|
|
function(MACHINE){
|
|
var firstArg = MACHINE.env[MACHINE.env.length-1];
|
|
var outputPort = MACHINE.params.currentOutputPort;
|
|
if (MACHINE.argcount === 2) {
|
|
outputPort = checkOutputPort(MACHINE, 'displayln', 1);
|
|
}
|
|
outputPort.writeDomNode(MACHINE, toDomNode(firstArg, 'display'));
|
|
outputPort.writeDomNode(MACHINE, toDomNode("\n", 'display'));
|
|
return VOID;
|
|
});
|
|
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'format',
|
|
plt.baselib.arity.makeArityAtLeast(1),
|
|
function(MACHINE) {
|
|
var args = [], i, formatString;
|
|
formatString = checkString(MACHINE, 'format', 0).toString();
|
|
for(i = 1; i < MACHINE.argcount; i++) {
|
|
args.push(MACHINE.env[MACHINE.env.length - 1 - i]);
|
|
}
|
|
return plt.baselib.format.format(formatString, args, 'format');
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'printf',
|
|
plt.baselib.arity.makeArityAtLeast(1),
|
|
function(MACHINE) {
|
|
var args = [], i, formatString, result, outputPort;
|
|
formatString = checkString(MACHINE, 'printf', 0).toString();
|
|
for(i = 1; i < MACHINE.argcount; i++) {
|
|
args.push(MACHINE.env[MACHINE.env.length - 1 - i]);
|
|
}
|
|
result = plt.baselib.format.format(formatString, args, 'format');
|
|
outputPort = MACHINE.params.currentOutputPort;
|
|
outputPort.writeDomNode(MACHINE, toDomNode(result, 'display'));
|
|
return VOID;
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'fprintf',
|
|
plt.baselib.arity.makeArityAtLeast(2),
|
|
function(MACHINE) {
|
|
var args = [], i, formatString, outputPort, result;
|
|
outputPort = checkOutputPort(MACHINE, 'fprintf', 0);
|
|
formatString = checkString(MACHINE, 'fprintf', 1).toString();
|
|
for(i = 2; i < MACHINE.argcount; i++) {
|
|
args.push(MACHINE.env[MACHINE.env.length - 1 - i]);
|
|
}
|
|
result = plt.baselib.format.format(formatString, args, 'format');
|
|
outputPort.writeDomNode(MACHINE, toDomNode(result, 'display'));
|
|
return VOID;
|
|
});
|
|
|
|
|
|
|
|
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'current-print',
|
|
makeList(0, 1),
|
|
function(MACHINE) {
|
|
if (MACHINE.argcount === 1) {
|
|
MACHINE.params['currentPrint'] =
|
|
checkProcedure(MACHINE, 'current-print', 0);
|
|
return VOID;
|
|
} else {
|
|
return MACHINE.params['currentPrint'];
|
|
}
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'current-output-port',
|
|
makeList(0, 1),
|
|
function(MACHINE) {
|
|
if (MACHINE.argcount === 1) {
|
|
MACHINE.params['currentOutputPort'] =
|
|
checkOutputPort(MACHINE, 'current-output-port', 0);
|
|
return VOID;
|
|
} else {
|
|
return MACHINE.params['currentOutputPort'];
|
|
}
|
|
});
|
|
|
|
|
|
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'=',
|
|
plt.baselib.arity.makeArityAtLeast(2),
|
|
function(MACHINE) {
|
|
var firstArg = checkNumber(MACHINE, '=', 0), secondArg;
|
|
for (var i = 1; i < MACHINE.argcount; i++) {
|
|
var secondArg = checkNumber(MACHINE, '=', i);
|
|
if (! (plt.baselib.numbers.equals(firstArg, secondArg))) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
});
|
|
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'=~',
|
|
3,
|
|
function(MACHINE) {
|
|
var x = checkReal(MACHINE, '=~', 0);
|
|
var y = checkReal(MACHINE, '=~', 1);
|
|
var range = checkNonNegativeReal(MACHINE, '=~', 2);
|
|
return plt.baselib.numbers.lessThanOrEqual(
|
|
plt.baselib.numbers.abs(plt.baselib.numbers.subtract(x, y)),
|
|
range);
|
|
});
|
|
|
|
|
|
|
|
var makeChainingBinop = function(predicate, name) {
|
|
return function(MACHINE) {
|
|
var firstArg = checkNumber(MACHINE, name, 0), secondArg;
|
|
for (var i = 1; i < MACHINE.argcount; i++) {
|
|
secondArg = checkNumber(MACHINE, name, i);
|
|
if (! (predicate(firstArg, secondArg))) {
|
|
return false;
|
|
}
|
|
firstArg = secondArg;
|
|
}
|
|
return true;
|
|
};
|
|
};
|
|
|
|
installPrimitiveProcedure(
|
|
'<',
|
|
plt.baselib.arity.makeArityAtLeast(2),
|
|
makeChainingBinop(plt.baselib.numbers.lessThan, '<'));
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'>',
|
|
plt.baselib.arity.makeArityAtLeast(2),
|
|
makeChainingBinop(plt.baselib.numbers.greaterThan, '>'));
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'<=',
|
|
plt.baselib.arity.makeArityAtLeast(2),
|
|
makeChainingBinop(plt.baselib.numbers.lessThanOrEqual, '<='));
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'>=',
|
|
plt.baselib.arity.makeArityAtLeast(2),
|
|
makeChainingBinop(plt.baselib.numbers.greaterThanOrEqual, '>='));
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'+',
|
|
plt.baselib.arity.makeArityAtLeast(0),
|
|
function(MACHINE) {
|
|
var result = 0;
|
|
var i = 0;
|
|
for (i = 0; i < MACHINE.argcount; i++) {
|
|
result = plt.baselib.numbers.add(
|
|
result,
|
|
checkNumber(MACHINE, '+', i));
|
|
};
|
|
return result;
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'*',
|
|
plt.baselib.arity.makeArityAtLeast(0),
|
|
function(MACHINE) {
|
|
var result = 1;
|
|
var i = 0;
|
|
for (i=0; i < MACHINE.argcount; i++) {
|
|
result = plt.baselib.numbers.multiply(
|
|
result,
|
|
checkNumber(MACHINE, '*', i));
|
|
}
|
|
return result;
|
|
});
|
|
|
|
installPrimitiveProcedure(
|
|
'-',
|
|
plt.baselib.arity.makeArityAtLeast(1),
|
|
function(MACHINE) {
|
|
if (MACHINE.argcount === 1) {
|
|
return plt.baselib.numbers.subtract(
|
|
0,
|
|
checkNumber(MACHINE, '-', 0));
|
|
}
|
|
var result = checkNumber(MACHINE, '-', 0);
|
|
for (var i = 1; i < MACHINE.argcount; i++) {
|
|
result = plt.baselib.numbers.subtract(
|
|
result,
|
|
checkNumber(MACHINE, '-', i));
|
|
}
|
|
return result;
|
|
});
|
|
|
|
installPrimitiveProcedure(
|
|
'/',
|
|
plt.baselib.arity.makeArityAtLeast(1),
|
|
function(MACHINE) {
|
|
var result = checkNumber(MACHINE, '/', 0);
|
|
for (var i = 1; i < MACHINE.argcount; i++) {
|
|
result = plt.baselib.numbers.divide(
|
|
result,
|
|
checkNumber(MACHINE, '/', i));
|
|
}
|
|
return result;
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'add1',
|
|
1,
|
|
function(MACHINE) {
|
|
var firstArg = checkNumber(MACHINE, 'add1', 0);
|
|
return plt.baselib.numbers.add(firstArg, 1);
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'sub1',
|
|
1,
|
|
function(MACHINE) {
|
|
var firstArg = checkNumber(MACHINE, 'sub1', 0);
|
|
return plt.baselib.numbers.subtract(firstArg, 1);
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'zero?',
|
|
1,
|
|
function(MACHINE) {
|
|
var firstArg = MACHINE.env[MACHINE.env.length-1];
|
|
return plt.baselib.numbers.equals(firstArg, 0);
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'cons',
|
|
2,
|
|
function(MACHINE) {
|
|
var firstArg = MACHINE.env[MACHINE.env.length-1];
|
|
var secondArg = MACHINE.env[MACHINE.env.length-2];
|
|
return makePair(firstArg, secondArg);
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'list',
|
|
plt.baselib.arity.makeArityAtLeast(0),
|
|
function(MACHINE) {
|
|
var result = NULL;
|
|
for (var i = 0; i < MACHINE.argcount; i++) {
|
|
result = makePair(MACHINE.env[MACHINE.env.length - (MACHINE.argcount - i)],
|
|
result);
|
|
}
|
|
return result;
|
|
});
|
|
|
|
installPrimitiveProcedure(
|
|
'list-ref',
|
|
2,
|
|
function(MACHINE) {
|
|
var lst = checkList(MACHINE, 'list-ref', 0);
|
|
var index = checkNaturalInRange(MACHINE, 'list-ref', 1,
|
|
0, plt.baselib.lists.length(lst));
|
|
return plt.baselib.lists.listRef(lst, plt.baselib.numbers.toFixnum(index));
|
|
});
|
|
|
|
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'car',
|
|
1,
|
|
function(MACHINE) {
|
|
var firstArg = checkPair(MACHINE, 'car', 0);
|
|
return firstArg.first;
|
|
});
|
|
|
|
installPrimitiveProcedure(
|
|
'cdr',
|
|
1,
|
|
function(MACHINE) {
|
|
var firstArg = checkPair(MACHINE, 'cdr', 0);
|
|
return firstArg.rest;
|
|
});
|
|
|
|
installPrimitiveProcedure(
|
|
'pair?',
|
|
1,
|
|
function(MACHINE) {
|
|
var firstArg = MACHINE.env[MACHINE.env.length-1];
|
|
return isPair(firstArg);
|
|
});
|
|
|
|
installPrimitiveProcedure(
|
|
'set-car!',
|
|
2,
|
|
function(MACHINE) {
|
|
var firstArg = checkPair(MACHINE, 'set-car!', 0);
|
|
var secondArg = MACHINE.env[MACHINE.env.length-2];
|
|
firstArg.first = secondArg;
|
|
return VOID;
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'set-cdr!',
|
|
2,
|
|
function(MACHINE) {
|
|
var firstArg = checkPair(MACHINE, 'set-car!', 0);
|
|
var secondArg = MACHINE.env[MACHINE.env.length-2];
|
|
firstArg.rest = secondArg;
|
|
return VOID;
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'not',
|
|
1,
|
|
function(MACHINE) {
|
|
var firstArg = MACHINE.env[MACHINE.env.length-1];
|
|
return (firstArg === false);
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'null?',
|
|
1,
|
|
function(MACHINE) {
|
|
var firstArg = MACHINE.env[MACHINE.env.length-1];
|
|
return firstArg === NULL;
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'vector',
|
|
plt.baselib.arity.makeArityAtLeast(0),
|
|
function(MACHINE) {
|
|
var i;
|
|
var result = [];
|
|
for (i = 0; i < MACHINE.argcount; i++) {
|
|
result.push(MACHINE.env[MACHINE.env.length-1-i]);
|
|
}
|
|
var newVector = makeVector.apply(null, result);
|
|
return newVector;
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'vector->list',
|
|
1,
|
|
function(MACHINE) {
|
|
var elts = checkVector(MACHINE, 'vector->list', 0).elts;
|
|
var i;
|
|
var result = NULL;
|
|
for (i = 0; i < elts.length; i++) {
|
|
result = makePair(elts[elts.length - 1 - i], result);
|
|
}
|
|
return result;
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'list->vector',
|
|
1,
|
|
function(MACHINE) {
|
|
var firstArg = checkList(MACHINE, 'list->vector', 0);
|
|
var result = [];
|
|
while (firstArg !== NULL) {
|
|
result.push(firstArg.first);
|
|
firstArg = firstArg.rest;
|
|
}
|
|
return makeVector.apply(null, result);
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'vector-ref',
|
|
2,
|
|
function(MACHINE) {
|
|
var elts = checkVector(MACHINE, 'vector-ref', 0).elts;
|
|
var index = MACHINE.env[MACHINE.env.length-2];
|
|
return elts[index];
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'vector-set!',
|
|
3,
|
|
function(MACHINE) {
|
|
var elts = checkVector(MACHINE, 'vector-set!', 0).elts;
|
|
// FIXME: check out-of-bounds vector
|
|
var index = plt.baselib.numbers.toFixnum(
|
|
checkNaturalInRange(MACHINE, 'vector-set!', 1,
|
|
0, elts.length));
|
|
var val = MACHINE.env[MACHINE.env.length - 1 - 2];
|
|
elts[index] = val;
|
|
return VOID;
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'vector-length',
|
|
1,
|
|
function(MACHINE) {
|
|
return checkVector(MACHINE, 'vector-length', 0).elts.length;
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'make-vector',
|
|
makeList(1, 2),
|
|
function(MACHINE) {
|
|
var value = 0;
|
|
var length = plt.baselib.numbers.toFixnum(
|
|
checkNatural(MACHINE, 'make-vector', 0));
|
|
if (MACHINE.argcount == 2) {
|
|
value = MACHINE.env[MACHINE.env.length - 2];
|
|
}
|
|
var arr = [];
|
|
for(var i = 0; i < length; i++) {
|
|
arr[i] = value;
|
|
}
|
|
return makeVector.apply(null, arr);
|
|
});
|
|
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'symbol?',
|
|
1,
|
|
function(MACHINE) {
|
|
var firstArg = MACHINE.env[MACHINE.env.length-1];
|
|
return isSymbol(firstArg);
|
|
});
|
|
|
|
installPrimitiveProcedure(
|
|
'symbol->string',
|
|
1,
|
|
function(MACHINE) {
|
|
var firstArg = checkSymbol(MACHINE, 'symbol->string', 0);
|
|
return firstArg.toString();
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'string=?',
|
|
plt.baselib.arity.makeArityAtLeast(1),
|
|
function(MACHINE) {
|
|
var s = checkString(MACHINE, 'string=?', 0).toString();
|
|
for (var i = 1; i < MACHINE.argcount; i++) {
|
|
if (checkString(MACHINE, 'string=?', i).toString() !== s) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'string-append',
|
|
plt.baselib.arity.makeArityAtLeast(0),
|
|
function(MACHINE) {
|
|
var buffer = [];
|
|
var i;
|
|
for (i = 0; i < MACHINE.argcount; i++) {
|
|
buffer.push(checkString(MACHINE, 'string-append', i).toString());
|
|
}
|
|
return buffer.join('');
|
|
});
|
|
|
|
installPrimitiveProcedure(
|
|
'string-length',
|
|
1,
|
|
function(MACHINE) {
|
|
var firstArg = checkString(MACHINE, 'string-length', 0).toString();
|
|
return firstArg.length;
|
|
});
|
|
|
|
installPrimitiveProcedure(
|
|
'box',
|
|
1,
|
|
function(MACHINE) {
|
|
var firstArg = MACHINE.env[MACHINE.env.length-1];
|
|
return makeBox(firstArg);
|
|
});
|
|
|
|
installPrimitiveProcedure(
|
|
'unbox',
|
|
1,
|
|
function(MACHINE) {
|
|
var firstArg = checkBox(MACHINE, 'unbox', 0);
|
|
return firstArg.ref();
|
|
});
|
|
|
|
installPrimitiveProcedure(
|
|
'set-box!',
|
|
2,
|
|
function(MACHINE) {
|
|
var firstArg = checkMutableBox(MACHINE, 'set-box!', 0);
|
|
var secondArg = MACHINE.env[MACHINE.env.length-2];
|
|
firstArg.set(secondArg);
|
|
return VOID;
|
|
});
|
|
|
|
installPrimitiveProcedure(
|
|
'void',
|
|
plt.baselib.arity.makeArityAtLeast(0),
|
|
function(MACHINE) {
|
|
return VOID;
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'random',
|
|
plt.baselib.lists.makeList(0, 1),
|
|
function(MACHINE) {
|
|
if (MACHINE.argcount === 0) {
|
|
return plt.baselib.numbers.makeFloat(Math.random());
|
|
} else {
|
|
var n = checkNatural(MACHINE, 'random', 0);
|
|
return Math.floor(Math.random() * plt.baselib.numbers.toFixnum(n));
|
|
}
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'eq?',
|
|
2,
|
|
function(MACHINE) {
|
|
var firstArg = MACHINE.env[MACHINE.env.length-1];
|
|
var secondArg = MACHINE.env[MACHINE.env.length-2];
|
|
return firstArg === secondArg;
|
|
});
|
|
|
|
installPrimitiveProcedure(
|
|
'equal?',
|
|
2,
|
|
function(MACHINE) {
|
|
var firstArg = MACHINE.env[MACHINE.env.length-1];
|
|
var secondArg = MACHINE.env[MACHINE.env.length-2];
|
|
return equals(firstArg, secondArg);
|
|
});
|
|
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'member',
|
|
2,
|
|
function(MACHINE) {
|
|
var x = MACHINE.env[MACHINE.env.length-1];
|
|
var lst = MACHINE.env[MACHINE.env.length-2];
|
|
var originalLst = lst;
|
|
while (true) {
|
|
if (lst === NULL) {
|
|
return false;
|
|
}
|
|
if (! isPair(lst)) {
|
|
raiseArgumentTypeError(MACHINE,
|
|
'member',
|
|
'list',
|
|
1,
|
|
MACHINE.env[MACHINE.env.length - 1 - 1]);
|
|
}
|
|
if (equals(x, (lst.first))) {
|
|
return lst;
|
|
}
|
|
lst = lst.rest;
|
|
}
|
|
});
|
|
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'reverse',
|
|
1,
|
|
function(MACHINE) {
|
|
var rev = NULL;
|
|
var lst = MACHINE.env[MACHINE.env.length-1];
|
|
while(lst !== NULL) {
|
|
testArgument(MACHINE,
|
|
'pair', isPair, lst, 0, 'reverse');
|
|
rev = makePair(lst.first, rev);
|
|
lst = lst.rest;
|
|
}
|
|
return rev;
|
|
});
|
|
|
|
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'abs',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.abs(
|
|
checkNumber(MACHINE, 'abs', 0));
|
|
});
|
|
|
|
installPrimitiveProcedure(
|
|
'acos',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.acos(
|
|
checkNumber(MACHINE, 'acos', 0));
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'asin',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.asin(
|
|
checkNumber(MACHINE, 'asin', 0));
|
|
});
|
|
|
|
installPrimitiveProcedure(
|
|
'sin',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.sin(
|
|
checkNumber(MACHINE, 'sin', 0));
|
|
});
|
|
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'sinh',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.sinh(
|
|
checkNumber(MACHINE, 'sinh', 0));
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'tan',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.tan(
|
|
checkNumber(MACHINE, 'tan', 0));
|
|
});
|
|
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'atan',
|
|
makeList(1, 2),
|
|
function(MACHINE) {
|
|
if (MACHINE.argcount === 1) {
|
|
return plt.baselib.numbers.atan(
|
|
checkNumber(MACHINE, 'atan', 0));
|
|
} else {
|
|
testArgument(MACHINE,
|
|
'number',
|
|
isNumber,
|
|
MACHINE.env[MACHINE.env.length - 1],
|
|
0,
|
|
'atan');
|
|
testArgument(MACHINE,
|
|
'number',
|
|
isNumber,
|
|
MACHINE.env[MACHINE.env.length - 2],
|
|
1,
|
|
'atan');
|
|
return plt.baselib.numbers.makeFloat(
|
|
Math.atan2(
|
|
plt.baselib.numbers.toFixnum(checkNumber(MACHINE, 'atan', 0)),
|
|
plt.baselib.numbers.toFixnum(checkNumber(MACHINE, 'atan', 1))));
|
|
}
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'angle',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.angle(
|
|
checkNumber(MACHINE, 'angle', 0));
|
|
});
|
|
|
|
installPrimitiveProcedure(
|
|
'magnitude',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.magnitude(
|
|
checkNumber(MACHINE, 'magnitude', 0));
|
|
});
|
|
|
|
installPrimitiveProcedure(
|
|
'conjugate',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.conjugate(
|
|
checkNumber(MACHINE, 'conjugate', 0));
|
|
});
|
|
|
|
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'cos',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.cos(
|
|
checkNumber(MACHINE, 'cos', 0));
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'cosh',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.cosh(
|
|
checkNumber(MACHINE, 'cosh', 0));
|
|
});
|
|
|
|
installPrimitiveProcedure(
|
|
'gcd',
|
|
plt.baselib.arity.makeArityAtLeast(1),
|
|
function(MACHINE) {
|
|
var args = [], i, x;
|
|
for (i = 0; i < MACHINE.argcount; i++) {
|
|
args.push(checkNumber(MACHINE, 'gcd', i));
|
|
}
|
|
x = args.shift();
|
|
return plt.baselib.numbers.gcd(x, args);
|
|
});
|
|
|
|
installPrimitiveProcedure(
|
|
'lcm',
|
|
plt.baselib.arity.makeArityAtLeast(1),
|
|
function(MACHINE) {
|
|
var args = [], i, x;
|
|
for (i = 0; i < MACHINE.argcount; i++) {
|
|
args.push(checkNumber(MACHINE, 'lcm', i));
|
|
}
|
|
x = args.shift();
|
|
return plt.baselib.numbers.lcm(x, args);
|
|
});
|
|
|
|
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'exp',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.exp(
|
|
checkNumber(MACHINE, 'exp', 0));
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'expt',
|
|
2,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.expt(
|
|
checkNumber(MACHINE, 'expt', 0),
|
|
checkNumber(MACHINE, 'expt', 1));
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'string?',
|
|
1,
|
|
function(MACHINE) {
|
|
return isString(MACHINE.env[MACHINE.env.length - 1]);
|
|
});
|
|
|
|
installPrimitiveProcedure(
|
|
'exact?',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.isExact(
|
|
checkNumber(MACHINE, 'exact?', 0));
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'integer?',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.isInteger(MACHINE.env[MACHINE.env.length - 1]);
|
|
});
|
|
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'imag-part',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.imaginaryPart(
|
|
checkNumber(MACHINE, 'imag-part', 0));
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'real-part',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.realPart(
|
|
checkNumber(MACHINE, 'real-part', 0));
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'make-polar',
|
|
2,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.makeComplexPolar(
|
|
checkReal(MACHINE, 'make-polar', 0),
|
|
checkReal(MACHINE, 'make-polar', 1));
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'make-rectangular',
|
|
2,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.makeComplex(
|
|
checkReal(MACHINE, 'make-rectangular', 0),
|
|
checkReal(MACHINE, 'make-rectangular', 1));
|
|
});
|
|
|
|
installPrimitiveProcedure(
|
|
'modulo',
|
|
2,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.modulo(
|
|
checkInteger(MACHINE, 'modulo', 0),
|
|
checkInteger(MACHINE, 'modulo', 1));
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'remainder',
|
|
2,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.remainder(
|
|
checkInteger(MACHINE, 'remainder', 0),
|
|
checkInteger(MACHINE, 'remainder', 1));
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'quotient',
|
|
2,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.quotient(
|
|
checkInteger(MACHINE, 'quotient', 0),
|
|
checkInteger(MACHINE, 'quotient', 1));
|
|
});
|
|
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'floor',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.floor(
|
|
checkReal(MACHINE, 'floor', 0));
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'ceiling',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.ceiling(
|
|
checkReal(MACHINE, 'ceiling', 0));
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'round',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.round(
|
|
checkReal(MACHINE, 'round', 0));
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'truncate',
|
|
1,
|
|
function(MACHINE) {
|
|
var n = checkReal(MACHINE, 'truncate', 0);
|
|
if (plt.baselib.numbers.lessThan(n, 0)) {
|
|
return plt.baselib.numbers.ceiling(n);
|
|
} else {
|
|
return plt.baselib.numbers.floor(n);
|
|
}
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'numerator',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.numerator(
|
|
checkRational(MACHINE, 'numerator', 0));
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'denominator',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.denominator(
|
|
checkRational(MACHINE, 'denominator', 0));
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'log',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.log(
|
|
checkNumber(MACHINE, 'log', 0));
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'sqr',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.sqr(
|
|
checkNumber(MACHINE, 'sqr', 0));
|
|
});
|
|
|
|
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'sqrt',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.sqrt(
|
|
checkNumber(MACHINE, 'sqrt', 0));
|
|
});
|
|
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'integer-sqrt',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.integerSqrt(
|
|
checkInteger(MACHINE, 'integer-sqrt', 0));
|
|
});
|
|
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'sgn',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.sign(
|
|
checkInteger(MACHINE, 'sgn', 0));
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'number->string',
|
|
1,
|
|
function(MACHINE) {
|
|
return checkNumber(MACHINE, 'number->string', 0).toString();
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'string->symbol',
|
|
1,
|
|
function(MACHINE) {
|
|
return makeSymbol(checkString(MACHINE, 'string->symbol', 0).toString());
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'string->number',
|
|
1,
|
|
function(MACHINE) {
|
|
return plt.baselib.numbers.fromString(
|
|
checkString(MACHINE, 'string->number', 0).toString());
|
|
});
|
|
|
|
|
|
|
|
installPrimitiveClosure(
|
|
'make-struct-type',
|
|
makeList(4, 5, 6, 7, 8, 9, 10, 11),
|
|
function(MACHINE) {
|
|
withArguments(
|
|
MACHINE,
|
|
4,
|
|
[false,
|
|
NULL,
|
|
false,
|
|
false,
|
|
NULL,
|
|
false,
|
|
false],
|
|
function(name,
|
|
superType,
|
|
initFieldCount,
|
|
autoFieldCount,
|
|
autoV,
|
|
props, // FIXME: currently ignored
|
|
inspector, // FIXME: currently ignored
|
|
procSpec, // FIXME: currently ignored
|
|
immutables, // FIXME: currently ignored
|
|
guard, // FIXME: currently ignored
|
|
constructorName
|
|
) {
|
|
|
|
// FIXME: typechecks.
|
|
|
|
var structType = plt.baselib.structs.makeStructureType(
|
|
name,
|
|
superType,
|
|
initFieldCount,
|
|
autoFieldCount,
|
|
autoV,
|
|
//props,
|
|
//inspector,
|
|
//procSpec,
|
|
//immutables,
|
|
guard);
|
|
|
|
var constructorValue =
|
|
makePrimitiveProcedure(
|
|
constructorName,
|
|
plt.baselib.numbers.toFixnum(initFieldCount),
|
|
function(MACHINE) {
|
|
var args = [];
|
|
for(var i = 0; i < initFieldCount; i++) {
|
|
args.push(MACHINE.env[MACHINE.env.length - 1 - i]);
|
|
}
|
|
return structType.constructor.apply(null, args);
|
|
});
|
|
|
|
var predicateValue =
|
|
makePrimitiveProcedure(
|
|
String(name) + "?",
|
|
1,
|
|
function(MACHINE) {
|
|
return structType.predicate(MACHINE.env[MACHINE.env.length - 1]);
|
|
});
|
|
|
|
var accessorValue =
|
|
makePrimitiveProcedure(
|
|
String(name) + "-accessor",
|
|
2,
|
|
function(MACHINE) {
|
|
// FIXME: typechecks
|
|
return structType.accessor(
|
|
MACHINE.env[MACHINE.env.length - 1],
|
|
plt.baselib.numbers.toFixnum(MACHINE.env[MACHINE.env.length - 2]));
|
|
});
|
|
accessorValue.structType = structType;
|
|
|
|
var mutatorValue =
|
|
makePrimitiveProcedure(
|
|
String(name) + "-mutator",
|
|
3,
|
|
function(MACHINE) {
|
|
// FIXME: typechecks
|
|
return structType.mutator(
|
|
MACHINE.env[MACHINE.env.length - 1],
|
|
plt.baselib.numbers.toFixnum(MACHINE.env[MACHINE.env.length - 2]),
|
|
MACHINE.env[MACHINE.env.length - 3]);
|
|
});
|
|
mutatorValue.structType = structType;
|
|
|
|
|
|
finalizeClosureCall(MACHINE,
|
|
structType,
|
|
constructorValue,
|
|
predicateValue,
|
|
accessorValue,
|
|
mutatorValue);
|
|
});
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'current-inspector',
|
|
makeList(0, 1),
|
|
function(MACHINE) {
|
|
if (MACHINE.argcount === 1) {
|
|
MACHINE.params['currentInspector'] =
|
|
checkInspector(MACHINE, 'current-inspector', 0);
|
|
return VOID;
|
|
} else {
|
|
return MACHINE.params['currentInspector'];
|
|
}
|
|
}
|
|
);
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'make-struct-field-accessor',
|
|
makeList(2, 3),
|
|
function(MACHINE){
|
|
// FIXME: typechecks
|
|
// We must guarantee that the ref argument is good.
|
|
var structType = MACHINE.env[MACHINE.env.length - 1].structType;
|
|
var index = MACHINE.env[MACHINE.env.length - 2];
|
|
var name;
|
|
if (MACHINE.argcount === 3) {
|
|
name = String(MACHINE.env[MACHINE.env.length - 3]);
|
|
} else {
|
|
name = 'field' + index;
|
|
}
|
|
return makePrimitiveProcedure(
|
|
name,
|
|
1,
|
|
function(MACHINE) {
|
|
return structType.accessor(
|
|
MACHINE.env[MACHINE.env.length - 1],
|
|
plt.baselib.numbers.toFixnum(index));
|
|
});
|
|
|
|
});
|
|
|
|
|
|
installPrimitiveProcedure(
|
|
'make-struct-field-mutator',
|
|
makeList(2, 3),
|
|
function(MACHINE){
|
|
// FIXME: typechecks
|
|
// We must guarantee that the set! argument is good.
|
|
var structType = MACHINE.env[MACHINE.env.length - 1].structType;
|
|
var index = MACHINE.env[MACHINE.env.length - 2];
|
|
var name;
|
|
if (MACHINE.argcount === 3) {
|
|
name = String(MACHINE.env[MACHINE.env.length - 3]);
|
|
} else {
|
|
name = 'field' + index;
|
|
}
|
|
return makePrimitiveProcedure(
|
|
name,
|
|
2,
|
|
function(MACHINE) {
|
|
return structType.mutator(
|
|
MACHINE.env[MACHINE.env.length - 1],
|
|
plt.baselib.numbers.toFixnum(index),
|
|
MACHINE.env[MACHINE.env.length - 2]);
|
|
});
|
|
});
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
//////////////////////////////////////////////////////////////////////
|
|
//////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
//////////////////////////////////////////////////////////////////////
|
|
//////////////////////////////////////////////////////////////////////
|
|
|
|
// Implementation of the ready function. This will fire off when
|
|
// setReadyTrue is called.
|
|
|
|
(function(scope) {
|
|
scope.ready = function(f) {
|
|
if (runtimeIsReady) {
|
|
notifyWaiter(f);
|
|
} else {
|
|
readyWaiters.push(f);
|
|
}
|
|
};
|
|
|
|
scope.setReadyTrue = function() {
|
|
runtimeIsReady = true;
|
|
while(runtimeIsReady && readyWaiters.length > 0) {
|
|
notifyWaiter(readyWaiters.shift());
|
|
}
|
|
};
|
|
|
|
scope.setReadyFalse = function() {
|
|
runtimeIsReady = false;
|
|
};
|
|
|
|
|
|
var runtimeIsReady = false;
|
|
var readyWaiters = [];
|
|
var notifyWaiter = function(w) {
|
|
w();
|
|
};
|
|
})(this);
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
//////////////////////////////////////////////////////////////////////
|
|
//////////////////////////////////////////////////////////////////////
|
|
|
|
// Executes all programs that have been labeled as a main module
|
|
var invokeMains = function(machine, succ, fail) {
|
|
runtime.ready(function() {
|
|
setReadyFalse();
|
|
machine = machine || runtime.currentMachine;
|
|
succ = succ || function() {};
|
|
fail = fail || function() {};
|
|
var mainModules = machine.mainModules.slice();
|
|
var loop = function() {
|
|
if (mainModules.length > 0) {
|
|
var nextModule = mainModules.shift();
|
|
nextModule.invoke(machine, loop, fail);
|
|
} else {
|
|
setReadyTrue();
|
|
succ();
|
|
}
|
|
};
|
|
setTimeout(loop, 0);
|
|
});
|
|
};
|
|
|
|
// Looks up a name in any of the machine's main modules.
|
|
var lookupInMains = function(name, machine) {
|
|
machine = machine || runtime.currentMachine;
|
|
for (var i = 0; i < machine.mainModules.length; i++) {
|
|
var ns = machine.mainModules[i].getNamespace();
|
|
if(ns.hasOwnProperty(name)) {
|
|
return ns[name];
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
//////////////////////////////////////////////////////////////////////
|
|
//////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
// Exports
|
|
var exports = runtime;
|
|
exports['currentMachine'] = new Machine();
|
|
exports['invokeMains'] = invokeMains;
|
|
exports['lookupInMains'] = lookupInMains;
|
|
|
|
|
|
// installing new primitives
|
|
exports['installPrimitiveProcedure'] = installPrimitiveProcedure;
|
|
exports['installPrimitiveClosure'] = installPrimitiveClosure;
|
|
exports['makePrimitiveProcedure'] = makePrimitiveProcedure;
|
|
exports['Primitives'] = Primitives;
|
|
|
|
exports['ready'] = ready;
|
|
// Private: the runtime library will set this flag to true when
|
|
// the library has finished loading.
|
|
exports['setReadyTrue'] = setReadyTrue;
|
|
exports['setReadyFalse'] = setReadyFalse;
|
|
|
|
exports['Machine'] = Machine;
|
|
exports['Frame'] = Frame;
|
|
exports['CallFrame'] = CallFrame;
|
|
exports['PromptFrame'] = PromptFrame;
|
|
exports['Closure'] = Closure;
|
|
exports['ModuleRecord'] = ModuleRecord;
|
|
exports['VariableReference'] = VariableReference;
|
|
exports['ContinuationPromptTag'] = ContinuationPromptTag;
|
|
exports['DEFAULT_CONTINUATION_PROMPT_TAG'] =
|
|
DEFAULT_CONTINUATION_PROMPT_TAG;
|
|
exports['NULL'] = NULL;
|
|
exports['VOID'] = VOID;
|
|
|
|
exports['NEGATIVE_ZERO'] = NEGATIVE_ZERO;
|
|
exports['INF'] = INF;
|
|
exports['NEGATIVE_INF'] = NEGATIVE_INF;
|
|
exports['NAN'] = NAN;
|
|
|
|
|
|
|
|
|
|
|
|
exports['testArgument'] = testArgument;
|
|
exports['testArity'] = testArity;
|
|
exports['makeCheckArgumentType'] = makeCheckArgumentType;
|
|
|
|
|
|
exports['raise'] = raise;
|
|
exports['raiseUnboundToplevelError'] = raiseUnboundToplevelError;
|
|
exports['raiseArgumentTypeError'] = raiseArgumentTypeError;
|
|
exports['raiseContextExpectedValuesError'] = raiseContextExpectedValuesError;
|
|
exports['raiseArityMismatchError'] = raiseArityMismatchError;
|
|
exports['raiseOperatorApplicationError'] = raiseOperatorApplicationError;
|
|
exports['raiseOperatorIsNotPrimitiveProcedure'] = raiseOperatorIsNotPrimitiveProcedure;
|
|
exports['raiseOperatorIsNotClosure'] = raiseOperatorIsNotClosure;
|
|
exports['raiseUnimplementedPrimitiveError'] = raiseUnimplementedPrimitiveError;
|
|
|
|
|
|
exports['captureControl'] = captureControl;
|
|
exports['restoreControl'] = restoreControl;
|
|
|
|
exports['trampoline'] = trampoline;
|
|
exports['spliceListIntoStack'] = spliceListIntoStack;
|
|
exports['unspliceRestFromStack'] = unspliceRestFromStack;
|
|
|
|
|
|
exports['finalizeClosureCall'] = finalizeClosureCall;
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
// Type constructors
|
|
|
|
// numbers
|
|
exports['makeList'] = makeList;
|
|
exports['makePair'] = makePair;
|
|
exports['makeVector'] = makeVector;
|
|
exports['makeBox'] = makeBox;
|
|
exports['makeFloat'] = makeFloat;
|
|
exports['makeRational'] = makeRational;
|
|
exports['makeBignum'] = makeBignum;
|
|
exports['makeComplex'] = makeComplex;
|
|
exports['makeSymbol'] = makeSymbol;
|
|
|
|
|
|
// Type predicates
|
|
exports['isPair'] = isPair;
|
|
exports['isList'] = isList;
|
|
exports['isVector'] = isVector;
|
|
exports['isOutputPort'] = isOutputPort;
|
|
exports['isOutputStringPort'] = isOutputStringPort;
|
|
exports['isBox'] = isBox;
|
|
exports['isString'] = isString;
|
|
exports['isSymbol'] = isSymbol;
|
|
exports['isNumber'] = isNumber;
|
|
exports['isNatural'] = isNatural;
|
|
exports['isReal'] = isReal;
|
|
exports['equals'] = equals;
|
|
|
|
exports['toDomNode'] = toDomNode;
|
|
exports['toWrittenString'] = toWrittenString;
|
|
exports['toDisplayedString'] = toDisplayedString;
|
|
|
|
exports['ArityAtLeast'] = plt.baselib.arity.ArityAtLeast;
|
|
exports['makeArityAtLeast'] = plt.baselib.arity.makeArityAtLeast;
|
|
exports['isArityMatching'] = plt.baselib.arity.isArityMatching;
|
|
|
|
exports['heir'] = heir;
|
|
exports['makeClassPredicate'] = makeClassPredicate;
|
|
|
|
exports['PAUSE'] = PAUSE;
|
|
exports['HaltError'] = HaltError;
|
|
|
|
|
|
|
|
exports['makeStructureType'] = plt.baselib.structs.makeStructureType;
|
|
exports['Struct'] = plt.baselib.structs.Struct;
|
|
exports['StructType'] = plt.baselib.structs.StructType;
|
|
|
|
|
|
})(this['plt']); |