@glimmer/compiler
Version:
243 lines (195 loc) • 22.2 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.hasDynamicFeatures = hasDynamicFeatures;
exports.ClassifiedElement = void 0;
var _syntax = require("@glimmer/syntax");
var _list = require("../../../../shared/list");
var _result = require("../../../../shared/result");
var _utils = require("../../../../utils");
var mir = _interopRequireWildcard(require("../../../2-encoding/mir"));
var _keywords = require("../../keywords");
var _isNode = require("../../utils/is-node");
var _expressions = require("../expressions");
function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
function _createForOfIteratorHelperLoose(o, allowArrayLike) {
var it;
if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) {
if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") {
if (it) o = it;
var i = 0;
return function () {
if (i >= o.length) return {
done: true
};
return {
done: false,
value: o[i++]
};
};
}
throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}
it = o[Symbol.iterator]();
return it.next.bind(it);
}
function _unsupportedIterableToArray(o, minLen) {
if (!o) return;
if (typeof o === "string") return _arrayLikeToArray(o, minLen);
var n = Object.prototype.toString.call(o).slice(8, -1);
if (n === "Object" && o.constructor) n = o.constructor.name;
if (n === "Map" || n === "Set") return Array.from(o);
if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
}
function _arrayLikeToArray(arr, len) {
if (len == null || len > arr.length) len = arr.length;
for (var i = 0, arr2 = new Array(len); i < len; i++) {
arr2[i] = arr[i];
}
return arr2;
}
var ClassifiedElement = /*#__PURE__*/function () {
function ClassifiedElement(element, delegate, state) {
this.element = element;
this.state = state;
this.delegate = delegate;
}
var _proto = ClassifiedElement.prototype;
_proto.toStatement = function toStatement() {
var _this = this;
return this.prepare().andThen(function (prepared) {
return _this.delegate.toStatement(_this, prepared);
});
};
_proto.attr = function attr(_attr) {
var _this2 = this;
var name = _attr.name;
var rawValue = _attr.value;
var namespace = (0, _utils.getAttrNamespace)(name.chars) || undefined;
if (_syntax.ASTv2.isLiteral(rawValue, 'string')) {
return (0, _result.Ok)(new mir.StaticAttr({
loc: _attr.loc,
name: name,
value: rawValue.toSlice(),
namespace: namespace,
kind: {
component: this.delegate.dynamicFeatures
}
}));
}
return _expressions.VISIT_EXPRS.visit((0, _expressions.convertPathToCallIfKeyword)(rawValue), this.state).mapOk(function (value) {
var isTrusting = _attr.trusting;
return new mir.DynamicAttr({
loc: _attr.loc,
name: name,
value: value,
namespace: namespace,
kind: {
trusting: isTrusting,
component: _this2.delegate.dynamicFeatures
}
});
});
};
_proto.modifier = function modifier(_modifier) {
if ((0, _isNode.isHelperInvocation)(_modifier)) {
(0, _isNode.assertIsValidModifier)(_modifier);
}
var translated = _keywords.MODIFIER_KEYWORDS.translate(_modifier, this.state);
if (translated !== null) {
return translated;
}
var head = _expressions.VISIT_EXPRS.visit(_modifier.callee, this.state);
var args = _expressions.VISIT_EXPRS.Args(_modifier.args, this.state);
return _result.Result.all(head, args).mapOk(function (_ref) {
var head = _ref[0],
args = _ref[1];
return new mir.Modifier({
loc: _modifier.loc,
callee: head,
args: args
});
});
};
_proto.attrs = function attrs() {
var attrs = new _result.ResultArray();
var args = new _result.ResultArray(); // Unlike most attributes, the `type` attribute can change how
// subsequent attributes are interpreted by the browser. To address
// this, in simple cases, we special case the `type` attribute to be set
// last. For elements with splattributes, where attribute order affects
// precedence, this re-ordering happens at runtime instead.
// See https://github.com/glimmerjs/glimmer-vm/pull/726
var typeAttr = null;
var simple = this.element.attrs.filter(function (attr) {
return attr.type === 'SplatAttr';
}).length === 0;
for (var _iterator = _createForOfIteratorHelperLoose(this.element.attrs), _step; !(_step = _iterator()).done;) {
var attr = _step.value;
if (attr.type === 'SplatAttr') {
attrs.add((0, _result.Ok)(new mir.SplatAttr({
loc: attr.loc,
symbol: this.state.scope.allocateBlock('attrs')
})));
} else if (attr.name.chars === 'type' && simple) {
typeAttr = attr;
} else {
attrs.add(this.attr(attr));
}
}
for (var _iterator2 = _createForOfIteratorHelperLoose(this.element.componentArgs), _step2; !(_step2 = _iterator2()).done;) {
var arg = _step2.value;
args.add(this.delegate.arg(arg, this));
}
if (typeAttr) {
attrs.add(this.attr(typeAttr));
}
return _result.Result.all(args.toArray(), attrs.toArray()).mapOk(function (_ref2) {
var args = _ref2[0],
attrs = _ref2[1];
return {
attrs: attrs,
args: new mir.NamedArguments({
loc: (0, _syntax.maybeLoc)(args, _syntax.SourceSpan.NON_EXISTENT),
entries: (0, _list.OptionalList)(args)
})
};
});
};
_proto.prepare = function prepare() {
var _this3 = this;
var attrs = this.attrs();
var modifiers = new _result.ResultArray(this.element.modifiers.map(function (m) {
return _this3.modifier(m);
})).toArray();
return _result.Result.all(attrs, modifiers).mapOk(function (_ref3) {
var result = _ref3[0],
modifiers = _ref3[1];
var attrs = result.attrs,
args = result.args;
var elementParams = [].concat(attrs, modifiers);
var params = new mir.ElementParameters({
loc: (0, _syntax.maybeLoc)(elementParams, _syntax.SourceSpan.NON_EXISTENT),
body: (0, _list.OptionalList)(elementParams)
});
return {
args: args,
params: params
};
});
};
return ClassifiedElement;
}();
exports.ClassifiedElement = ClassifiedElement;
function hasDynamicFeatures(_ref4) {
var attrs = _ref4.attrs,
modifiers = _ref4.modifiers; // ElementModifier needs the special ComponentOperations
if (modifiers.length > 0) {
return true;
} // Splattributes need the special ComponentOperations to merge into
return !!attrs.filter(function (attr) {
return attr.type === 'SplatAttr';
})[0];
}
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{ ASTv2, maybeLoc, SourceSpan } from '@glimmer/syntax';\n\nimport { OptionalList } from '../../../../shared/list';\nimport { Ok, Result, ResultArray } from '../../../../shared/result';\nimport { getAttrNamespace } from '../../../../utils';\nimport * as mir from '../../../2-encoding/mir';\nimport { NormalizationState } from '../../context';\nimport { MODIFIER_KEYWORDS } from '../../keywords';\nimport { assertIsValidModifier, isHelperInvocation } from '../../utils/is-node';\nimport { convertPathToCallIfKeyword, VISIT_EXPRS } from '../expressions';\n\nexport type ValidAttr = mir.StaticAttr | mir.DynamicAttr | mir.SplatAttr;\n\ntype ProcessedAttributes = {\n  attrs: ValidAttr[];\n  args: mir.NamedArguments;\n};\n\nexport interface Classified {\n  readonly dynamicFeatures: boolean;\n\n  arg(attr: ASTv2.AttrNode, classified: ClassifiedElement): Result<mir.NamedArgument>;\n  toStatement(classified: ClassifiedElement, prepared: PreparedArgs): Result<mir.Statement>;\n}\n\nexport class ClassifiedElement {\n  readonly delegate: Classified;\n\n  constructor(\n    readonly element: ASTv2.ElementNode,\n    delegate: Classified,\n    readonly state: NormalizationState\n  ) {\n    this.delegate = delegate;\n  }\n\n  toStatement(): Result<mir.Statement> {\n    return this.prepare().andThen((prepared) => this.delegate.toStatement(this, prepared));\n  }\n\n  private attr(attr: ASTv2.HtmlAttr): Result<ValidAttr> {\n    let name = attr.name;\n    let rawValue = attr.value;\n    let namespace = getAttrNamespace(name.chars) || undefined;\n\n    if (ASTv2.isLiteral(rawValue, 'string')) {\n      return Ok(\n        new mir.StaticAttr({\n          loc: attr.loc,\n          name,\n          value: rawValue.toSlice(),\n          namespace,\n          kind: {\n            component: this.delegate.dynamicFeatures,\n          },\n        })\n      );\n    }\n\n    return VISIT_EXPRS.visit(convertPathToCallIfKeyword(rawValue), this.state).mapOk((value) => {\n      let isTrusting = attr.trusting;\n\n      return new mir.DynamicAttr({\n        loc: attr.loc,\n        name,\n        value: value,\n        namespace,\n        kind: {\n          trusting: isTrusting,\n          component: this.delegate.dynamicFeatures,\n        },\n      });\n    });\n  }\n\n  private modifier(modifier: ASTv2.ElementModifier): Result<mir.Modifier> {\n    if (isHelperInvocation(modifier)) {\n      assertIsValidModifier(modifier);\n    }\n\n    let translated = MODIFIER_KEYWORDS.translate(modifier, this.state);\n\n    if (translated !== null) {\n      return translated;\n    }\n\n    let head = VISIT_EXPRS.visit(modifier.callee, this.state);\n    let args = VISIT_EXPRS.Args(modifier.args, this.state);\n\n    return Result.all(head, args).mapOk(\n      ([head, args]) =>\n        new mir.Modifier({\n          loc: modifier.loc,\n          callee: head,\n          args,\n        })\n    );\n  }\n\n  private attrs(): Result<ProcessedAttributes> {\n    let attrs = new ResultArray<ValidAttr>();\n    let args = new ResultArray<mir.NamedArgument>();\n\n    // Unlike most attributes, the `type` attribute can change how\n    // subsequent attributes are interpreted by the browser. To address\n    // this, in simple cases, we special case the `type` attribute to be set\n    // last. For elements with splattributes, where attribute order affects\n    // precedence, this re-ordering happens at runtime instead.\n    // See https://github.com/glimmerjs/glimmer-vm/pull/726\n    let typeAttr: ASTv2.AttrNode | null = null;\n    let simple = this.element.attrs.filter((attr) => attr.type === 'SplatAttr').length === 0;\n\n    for (let attr of this.element.attrs) {\n      if (attr.type === 'SplatAttr') {\n        attrs.add(\n          Ok(new mir.SplatAttr({ loc: attr.loc, symbol: this.state.scope.allocateBlock('attrs') }))\n        );\n      } else if (attr.name.chars === 'type' && simple) {\n        typeAttr = attr;\n      } else {\n        attrs.add(this.attr(attr));\n      }\n    }\n\n    for (let arg of this.element.componentArgs) {\n      args.add(this.delegate.arg(arg, this));\n    }\n\n    if (typeAttr) {\n      attrs.add(this.attr(typeAttr));\n    }\n\n    return Result.all(args.toArray(), attrs.toArray()).mapOk(([args, attrs]) => ({\n      attrs,\n      args: new mir.NamedArguments({\n        loc: maybeLoc(args, SourceSpan.NON_EXISTENT),\n        entries: OptionalList(args),\n      }),\n    }));\n  }\n\n  private prepare(): Result<PreparedArgs> {\n    let attrs = this.attrs();\n    let modifiers = new ResultArray(this.element.modifiers.map((m) => this.modifier(m))).toArray();\n\n    return Result.all(attrs, modifiers).mapOk(([result, modifiers]) => {\n      let { attrs, args } = result;\n\n      let elementParams = [...attrs, ...modifiers];\n\n      let params = new mir.ElementParameters({\n        loc: maybeLoc(elementParams, SourceSpan.NON_EXISTENT),\n        body: OptionalList(elementParams),\n      });\n\n      return { args, params };\n    });\n  }\n}\n\nexport interface PreparedArgs {\n  args: mir.NamedArguments;\n  params: mir.ElementParameters;\n}\n\nexport function hasDynamicFeatures({\n  attrs,\n  modifiers,\n}: Pick<ASTv2.ElementNode, 'attrs' | 'modifiers'>): boolean {\n  // ElementModifier needs the special ComponentOperations\n  if (modifiers.length > 0) {\n    return true;\n  }\n\n  // Splattributes need the special ComponentOperations to merge into\n  return !!attrs.filter((attr) => attr.type === 'SplatAttr')[0];\n}\n"],"sourceRoot":""}