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Unified Diff: lib/runtime/dart_sdk.js

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Issue 1964263002: fuse some null checks with type checks, introduce a special bool variant (Closed) Base URL: git@github.com:dart-lang/dev_compiler.git@master
Patch Set: Created 4 years, 7 months ago
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Index: lib/runtime/dart_sdk.js
diff --git a/lib/runtime/dart_sdk.js b/lib/runtime/dart_sdk.js
index 9a5d0a71252a4e3c9d53335ac9ceb34444e7916b..090ecaeca676246a3786027bbb19c6ec7fbc7665 100644
--- a/lib/runtime/dart_sdk.js
+++ b/lib/runtime/dart_sdk.js
@@ -456,22 +456,30 @@ dart_library.library('dart_sdk', null, /* Imports */[
if (obj == null) return obj;
let result = dart.strongInstanceOf(obj, type, true);
if (result) return obj;
+ dart._throwCastError(obj, type, result);
+ };
+ dart.asNotNull = function(obj, type) {
+ if (obj == null) dart.throwNullValueError();
+ let result = dart.strongInstanceOf(obj, type, true);
+ if (result) return obj;
+ dart._throwCastError(obj, type, result);
+ };
+ dart.test = function(obj) {
+ if (typeof obj == "boolean") return obj;
+ dart.throwCastError(dart.getReifiedType(obj), core.bool);
+ };
+ dart._throwCastError = function(obj, type, result) {
let actual = dart.getReifiedType(obj);
- if (result === false) dart.throwCastError(actual, type);
- dart.throwStrongModeError('Strong mode cast failure from ' + dart.typeName(actual) + ' to ' + dart.typeName(type));
+ if (result == false) dart.throwCastError(actual, type);
+ dart.throwStrongModeError('Strong mode cast failure from ' + dart.asNotNull(dart.typeName(actual), core.String) + ' to ' + dart.asNotNull(dart.typeName(type), core.String));
};
dart.asInt = function(obj) {
- if (obj == null) {
- return null;
- }
+ if (obj == null) return null;
if (Math.floor(obj) != obj) {
- dart.throwCastError(dart.getReifiedType(obj), core.int);
+ dart.throwCastError(dart.getReifiedType(obj), dart.wrapType(core.int));
}
return obj;
};
- dart.arity = function(f) {
- return {min: f.length, max: f.length};
- };
dart.equals = function(x, y) {
if (x == null || y == null) return x == y;
let eq = x['=='];
@@ -6942,7 +6950,7 @@ dart_library.library('dart_sdk', null, /* Imports */[
if (this.doneHandlers == null) {
this.doneHandlers = [];
}
- if (dart.notNull(dart.as(dart.dsend(this.doneHandlers, 'contains', responsePort), core.bool))) return;
+ if (dart.test(dart.dsend(this.doneHandlers, 'contains', responsePort))) return;
dart.dsend(this.doneHandlers, 'add', responsePort);
}
removeDoneListener(responsePort) {
@@ -7036,7 +7044,7 @@ dart_library.library('dart_sdk', null, /* Imports */[
_isolate_helper._globalState.currentContext = old;
if (old != null) old[_setGlobals]();
if (this[_scheduledControlEvents] != null) {
- while (dart.notNull(dart.as(dart.dload(this[_scheduledControlEvents], 'isNotEmpty'), core.bool))) {
+ while (dart.test(dart.dload(this[_scheduledControlEvents], 'isNotEmpty'))) {
dart.dcall(dart.dsend(this[_scheduledControlEvents], 'removeFirst'));
}
}
@@ -9181,9 +9189,9 @@ dart_library.library('dart_sdk', null, /* Imports */[
let a = dart.list([], core.int);
for (let i of dart.as(codePoints, core.Iterable)) {
if (!(typeof i == 'number')) dart.throw(_js_helper.argumentErrorValue(i));
- if (dart.notNull(dart.as(dart.dsend(i, '<=', 65535), core.bool))) {
+ if (dart.test(dart.dsend(i, '<=', 65535))) {
a[dartx.add](dart.as(i, core.int));
- } else if (dart.notNull(dart.as(dart.dsend(i, '<=', 1114111), core.bool))) {
+ } else if (dart.test(dart.dsend(i, '<=', 1114111))) {
a[dartx.add](dart.asInt(55296 + dart.notNull(dart.as(dart.dsend(dart.dsend(dart.dsend(i, '-', 65536), '>>', 10), '&', 1023), core.num))));
a[dartx.add](dart.asInt(56320 + dart.notNull(dart.as(dart.dsend(i, '&', 1023), core.num))));
} else {
@@ -9195,8 +9203,8 @@ dart_library.library('dart_sdk', null, /* Imports */[
static stringFromCharCodes(charCodes) {
for (let i of dart.as(charCodes, core.Iterable)) {
if (!(typeof i == 'number')) dart.throw(_js_helper.argumentErrorValue(i));
- if (dart.notNull(dart.as(dart.dsend(i, '<', 0), core.bool))) dart.throw(_js_helper.argumentErrorValue(i));
- if (dart.notNull(dart.as(dart.dsend(i, '>', 65535), core.bool))) return _js_helper.Primitives.stringFromCodePoints(charCodes);
+ if (dart.test(dart.dsend(i, '<', 0))) dart.throw(_js_helper.argumentErrorValue(i));
+ if (dart.test(dart.dsend(i, '>', 65535))) return _js_helper.Primitives.stringFromCodePoints(charCodes);
}
return _js_helper.Primitives._fromCharCodeApply(dart.as(charCodes, core.List$(core.int)));
}
@@ -9257,20 +9265,20 @@ dart_library.library('dart_sdk', null, /* Imports */[
_js_helper.checkBool(isUtc);
let jsMonth = dart.dsend(month, '-', 1);
let value = null;
- if (dart.notNull(dart.as(isUtc, core.bool))) {
+ if (dart.test(isUtc)) {
value = Date.UTC(years, jsMonth, day, hours, minutes, seconds, milliseconds);
} else {
value = new Date(years, jsMonth, day, hours, minutes, seconds, milliseconds).valueOf();
}
- if (dart.notNull(dart.as(dart.dload(value, 'isNaN'), core.bool)) || dart.notNull(dart.as(dart.dsend(value, '<', -MAX_MILLISECONDS_SINCE_EPOCH), core.bool)) || dart.notNull(dart.as(dart.dsend(value, '>', MAX_MILLISECONDS_SINCE_EPOCH), core.bool))) {
+ if (dart.test(dart.dload(value, 'isNaN')) || dart.test(dart.dsend(value, '<', -MAX_MILLISECONDS_SINCE_EPOCH)) || dart.test(dart.dsend(value, '>', MAX_MILLISECONDS_SINCE_EPOCH))) {
return null;
}
- if (dart.notNull(dart.as(dart.dsend(years, '<=', 0), core.bool)) || dart.notNull(dart.as(dart.dsend(years, '<', 100), core.bool))) return _js_helper.Primitives.patchUpY2K(value, years, isUtc);
+ if (dart.test(dart.dsend(years, '<=', 0)) || dart.test(dart.dsend(years, '<', 100))) return _js_helper.Primitives.patchUpY2K(value, years, isUtc);
return value;
}
static patchUpY2K(value, years, isUtc) {
let date = new Date(value);
- if (dart.notNull(dart.as(isUtc, core.bool))) {
+ if (dart.test(isUtc)) {
date.setUTCFullYear(years);
} else {
date.setFullYear(years);
@@ -9378,7 +9386,7 @@ dart_library.library('dart_sdk', null, /* Imports */[
_js_helper.diagnoseIndexError = function(indexable, index) {
if (!(typeof index == 'number')) return new core.ArgumentError.value(index, 'index');
let length = dart.as(dart.dload(indexable, 'length'), core.int);
- if (dart.notNull(dart.as(dart.dsend(index, '<', 0), core.bool)) || dart.notNull(dart.as(dart.dsend(index, '>=', length), core.bool))) {
+ if (dart.test(dart.dsend(index, '<', 0)) || dart.test(dart.dsend(index, '>=', length))) {
return core.RangeError.index(dart.as(index, core.int), indexable, 'index', null, length);
}
return new core.RangeError.value(dart.as(index, core.num), 'index');
@@ -9388,14 +9396,14 @@ dart_library.library('dart_sdk', null, /* Imports */[
if (!(typeof start == 'number')) {
return new core.ArgumentError.value(start, 'start');
}
- if (dart.notNull(dart.as(dart.dsend(start, '<', 0), core.bool)) || dart.notNull(dart.as(dart.dsend(start, '>', length), core.bool))) {
+ if (dart.test(dart.dsend(start, '<', 0)) || dart.test(dart.dsend(start, '>', length))) {
return new core.RangeError.range(dart.as(start, core.num), 0, dart.as(length, core.int), 'start');
}
if (end != null) {
if (!(typeof end == 'number')) {
return new core.ArgumentError.value(end, 'end');
}
- if (dart.notNull(dart.as(dart.dsend(end, '<', start), core.bool)) || dart.notNull(dart.as(dart.dsend(end, '>', length), core.bool))) {
+ if (dart.test(dart.dsend(end, '<', start)) || dart.test(dart.dsend(end, '>', length))) {
return new core.RangeError.range(dart.as(end, core.num), dart.as(start, core.int), dart.as(length, core.int), 'end');
}
}
@@ -21409,7 +21417,7 @@ dart_library.library('dart_sdk', null, /* Imports */[
count++;
if (count > MAX_COUNT) {
while (dart.notNull(length) > LENGTH_LIMIT - ELLIPSIS_SIZE - OVERHEAD && count > HEAD_COUNT) {
- length = dart.notNull(length) - dart.notNull(dart.as(dart.dsend(dart.dload(parts[dartx.removeLast](), 'length'), '+', OVERHEAD), core.int));
+ length = dart.notNull(length) - dart.asNotNull(dart.dsend(dart.dload(parts[dartx.removeLast](), 'length'), '+', OVERHEAD), core.int);
count--;
}
parts[dartx.add]("...");
@@ -21427,7 +21435,7 @@ dart_library.library('dart_sdk', null, /* Imports */[
length = dart.notNull(length) + (ELLIPSIS_SIZE + OVERHEAD);
}
while (dart.notNull(length) > LENGTH_LIMIT && dart.notNull(parts[dartx.length]) > HEAD_COUNT) {
- length = dart.notNull(length) - dart.notNull(dart.as(dart.dsend(dart.dload(parts[dartx.removeLast](), 'length'), '+', OVERHEAD), core.int));
+ length = dart.notNull(length) - dart.asNotNull(dart.dsend(dart.dload(parts[dartx.removeLast](), 'length'), '+', OVERHEAD), core.int);
if (elision == null) {
elision = "...";
length = dart.notNull(length) + (ELLIPSIS_SIZE + OVERHEAD);
@@ -28280,7 +28288,7 @@ dart_library.library('dart_sdk', null, /* Imports */[
}
get [_errorExplanation]() {
dart.assert(this[_hasValue]);
- if (dart.notNull(dart.as(dart.dsend(this.invalidValue, '<', 0), core.bool))) {
+ if (dart.test(dart.dsend(this.invalidValue, '<', 0))) {
return ": index must not be negative";
}
if (this.length == 0) {
@@ -28501,7 +28509,7 @@ dart_library.library('dart_sdk', null, /* Imports */[
}
return report;
}
- if (offset != null && (dart.notNull(offset) < 0 || dart.notNull(offset) > dart.notNull(dart.as(dart.dload(this.source, 'length'), core.num)))) {
+ if (offset != null && (dart.notNull(offset) < 0 || dart.notNull(offset) > dart.asNotNull(dart.dload(this.source, 'length'), core.num))) {
offset = null;
}
if (offset == null) {
@@ -28534,7 +28542,7 @@ dart_library.library('dart_sdk', null, /* Imports */[
report = report + ` (at character ${dart.notNull(offset) + 1})\n`;
}
let lineEnd = dart.as(dart.dload(this.source, 'length'), core.int);
- for (let i = offset; dart.notNull(i) < dart.notNull(dart.as(dart.dload(this.source, 'length'), core.num)); i = dart.notNull(i) + 1) {
+ for (let i = offset; dart.notNull(i) < dart.asNotNull(dart.dload(this.source, 'length'), core.num); i = dart.notNull(i) + 1) {
let char = dart.as(dart.dsend(this.source, 'codeUnitAt', i), core.int);
if (char == 10 || char == 13) {
lineEnd = i;
@@ -29842,10 +29850,10 @@ dart_library.library('dart_sdk', null, /* Imports */[
} else {
result = pathSegments[dartx.map](core.String)(dart.fn(s => core.Uri._uriEncode(core.Uri._pathCharTable, s, convert.UTF8, false), core.String, [core.String]))[dartx.join]("/");
}
- if (dart.notNull(dart.as(dart.dload(result, 'isEmpty'), core.bool))) {
+ if (dart.test(dart.dload(result, 'isEmpty'))) {
if (isFile) return "/";
- } else if (ensureLeadingSlash && !dart.notNull(dart.as(dart.dsend(result, 'startsWith', '/'), core.bool))) {
- result = "/" + dart.notNull(dart.as(result, core.String));
+ } else if (ensureLeadingSlash && !dart.test(dart.dsend(result, 'startsWith', '/'))) {
+ result = "/" + dart.asNotNull(result, core.String);
}
result = core.Uri._normalizePath(dart.as(result, core.String), scheme, hasAuthority);
return dart.as(result, core.String);
@@ -30731,7 +30739,7 @@ dart_library.library('dart_sdk', null, /* Imports */[
let indices = dart.list([core.UriData._noScheme], core.int);
core.UriData._writeUri(dart.as(mimeType, core.String), null, parameters, buffer, indices);
indices[dartx.add](buffer.length);
- if (dart.notNull(dart.as(percentEncoded, core.bool))) {
+ if (dart.test(percentEncoded)) {
buffer.write(',');
core.UriData._uriEncodeBytes(core.UriData._uricTable, bytes, buffer);
} else {
@@ -32706,13 +32714,13 @@ dart_library.library('dart_sdk', null, /* Imports */[
if (dart.notNull(html_common.isJavaScriptDate(object))) return true;
if (dart.is(object, core.List)) {
for (let i = 0; i < dart.notNull(object[dartx.length]); i++) {
- if (dart.notNull(dart.as(containsDate(object[dartx.get](i)), core.bool))) return true;
+ if (dart.test(containsDate(object[dartx.get](i)))) return true;
}
}
return false;
}
dart.fn(containsDate);
- if (dart.notNull(dart.as(containsDate(nativeKey), core.bool))) {
+ if (dart.test(containsDate(nativeKey))) {
dart.throw(new core.UnimplementedError('Key containing DateTime'));
}
return nativeKey;
@@ -69093,10 +69101,10 @@ dart_library.library('dart_sdk', null, /* Imports */[
}
set height(newHeight) {
if (dart.is(newHeight, html$.Dimension)) {
- if (dart.notNull(dart.as(dart.dsend(dart.dload(newHeight, 'value'), '<', 0), core.bool))) newHeight = new html$.Dimension.px(0);
+ if (dart.test(dart.dsend(dart.dload(newHeight, 'value'), '<', 0))) newHeight = new html$.Dimension.px(0);
this[_element$][dartx.style][dartx.height] = dart.toString(newHeight);
} else if (typeof newHeight == 'number') {
- if (dart.notNull(dart.as(dart.dsend(newHeight, '<', 0), core.bool))) newHeight = 0;
+ if (dart.test(dart.dsend(newHeight, '<', 0))) newHeight = 0;
this[_element$][dartx.style][dartx.height] = `${newHeight}px`;
} else {
dart.throw(new core.ArgumentError("newHeight is not a Dimension or num"));
@@ -69104,10 +69112,10 @@ dart_library.library('dart_sdk', null, /* Imports */[
}
set width(newWidth) {
if (dart.is(newWidth, html$.Dimension)) {
- if (dart.notNull(dart.as(dart.dsend(dart.dload(newWidth, 'value'), '<', 0), core.bool))) newWidth = new html$.Dimension.px(0);
+ if (dart.test(dart.dsend(dart.dload(newWidth, 'value'), '<', 0))) newWidth = new html$.Dimension.px(0);
this[_element$][dartx.style][dartx.width] = dart.toString(newWidth);
} else if (typeof newWidth == 'number') {
- if (dart.notNull(dart.as(dart.dsend(newWidth, '<', 0), core.bool))) newWidth = 0;
+ if (dart.test(dart.dsend(newWidth, '<', 0))) newWidth = 0;
this[_element$][dartx.style][dartx.width] = `${newWidth}px`;
} else {
dart.throw(new core.ArgumentError("newWidth is not a Dimension or num"));
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