ember-legacy-class-transform
Version:
The default blueprint for ember-cli addons.
115 lines (101 loc) • 15.6 kB
JavaScript
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
import { EMPTY_ARRAY } from '@glimmer/util';
import * as WireFormat from '@glimmer/wire-format';
import * as ClientSide from './syntax/client-side';
import CompilableTemplate from './syntax/compilable-template';
import { ATTRS_BLOCK } from './syntax/functions';
var Ops = WireFormat.Ops;
var Scanner = function () {
function Scanner(block, env) {
_classCallCheck(this, Scanner);
this.block = block;
this.env = env;
}
Scanner.prototype.scanEntryPoint = function scanEntryPoint(meta) {
var block = this.block;
var statements = block.statements,
symbols = block.symbols,
hasEval = block.hasEval;
return new CompilableTemplate(statements, { meta: meta, symbols: symbols, hasEval: hasEval });
};
Scanner.prototype.scanBlock = function scanBlock(meta) {
var block = this.block;
var statements = block.statements;
return new CompilableTemplate(statements, { meta: meta, parameters: EMPTY_ARRAY });
};
Scanner.prototype.scanLayout = function scanLayout(meta, attrs, componentName) {
var block = this.block;
var statements = block.statements,
symbols = block.symbols,
hasEval = block.hasEval;
var symbolTable = { meta: meta, hasEval: hasEval, symbols: symbols };
var newStatements = [];
var toplevel = void 0;
var inTopLevel = false;
for (var i = 0; i < statements.length; i++) {
var statement = statements[i];
if (WireFormat.Statements.isComponent(statement)) {
var tagName = statement[1];
if (!this.env.hasComponentDefinition(tagName, meta.templateMeta)) {
if (toplevel !== undefined) {
newStatements.push([Ops.OpenElement, tagName]);
} else {
toplevel = tagName;
decorateTopLevelElement(tagName, symbols, attrs, newStatements);
}
addFallback(statement, newStatements);
} else {
if (toplevel === undefined && tagName === componentName) {
toplevel = tagName;
decorateTopLevelElement(tagName, symbols, attrs, newStatements);
addFallback(statement, newStatements);
} else {
newStatements.push(statement);
}
}
} else {
if (toplevel === undefined && WireFormat.Statements.isOpenElement(statement)) {
toplevel = statement[1];
inTopLevel = true;
decorateTopLevelElement(toplevel, symbols, attrs, newStatements);
} else {
if (inTopLevel) {
if (WireFormat.Statements.isFlushElement(statement)) {
inTopLevel = false;
} else if (WireFormat.Statements.isModifier(statement)) {
throw Error('Found modifier "' + statement[1] + '" on the top-level element of "' + componentName + '". Modifiers cannot be on the top-level element');
}
}
newStatements.push(statement);
}
}
}
newStatements.push([Ops.ClientSideStatement, ClientSide.Ops.DidRenderLayout]);
return new CompilableTemplate(newStatements, symbolTable);
};
return Scanner;
}();
export default Scanner;
function addFallback(statement, buffer) {
var attrs = statement[2],
block = statement[4];
for (var i = 0; i < attrs.length; i++) {
buffer.push(attrs[i]);
}
buffer.push([Ops.FlushElement]);
if (block) {
var statements = block.statements;
for (var _i = 0; _i < statements.length; _i++) {
buffer.push(statements[_i]);
}
}
buffer.push([Ops.CloseElement]);
}
function decorateTopLevelElement(tagName, symbols, attrs, buffer) {
var attrsSymbol = symbols.push(ATTRS_BLOCK);
buffer.push([Ops.ClientSideStatement, ClientSide.Ops.OpenComponentElement, tagName]);
buffer.push([Ops.ClientSideStatement, ClientSide.Ops.DidCreateElement]);
buffer.push([Ops.Yield, attrsSymbol, EMPTY_ARRAY]);
buffer.push.apply(buffer, attrs);
}
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{ EMPTY_ARRAY } from '@glimmer/util';\nimport * as WireFormat from '@glimmer/wire-format';\nimport * as ClientSide from './syntax/client-side';\nimport CompilableTemplate from './syntax/compilable-template';\nimport { ATTRS_BLOCK } from './syntax/functions';\nvar Ops = WireFormat.Ops;\nexport default class Scanner {\n    constructor(block, env) {\n        this.block = block;\n        this.env = env;\n    }\n    scanEntryPoint(meta) {\n        let { block } = this;\n        let { statements, symbols, hasEval } = block;\n        return new CompilableTemplate(statements, { meta, symbols, hasEval });\n    }\n    scanBlock(meta) {\n        let { block } = this;\n        let { statements } = block;\n        return new CompilableTemplate(statements, { meta, parameters: EMPTY_ARRAY });\n    }\n    scanLayout(meta, attrs, componentName) {\n        let { block } = this;\n        let { statements, symbols, hasEval } = block;\n        let symbolTable = { meta, hasEval, symbols };\n        let newStatements = [];\n        let toplevel;\n        let inTopLevel = false;\n        for (let i = 0; i < statements.length; i++) {\n            let statement = statements[i];\n            if (WireFormat.Statements.isComponent(statement)) {\n                let tagName = statement[1];\n                if (!this.env.hasComponentDefinition(tagName, meta.templateMeta)) {\n                    if (toplevel !== undefined) {\n                        newStatements.push([Ops.OpenElement, tagName]);\n                    } else {\n                        toplevel = tagName;\n                        decorateTopLevelElement(tagName, symbols, attrs, newStatements);\n                    }\n                    addFallback(statement, newStatements);\n                } else {\n                    if (toplevel === undefined && tagName === componentName) {\n                        toplevel = tagName;\n                        decorateTopLevelElement(tagName, symbols, attrs, newStatements);\n                        addFallback(statement, newStatements);\n                    } else {\n                        newStatements.push(statement);\n                    }\n                }\n            } else {\n                if (toplevel === undefined && WireFormat.Statements.isOpenElement(statement)) {\n                    toplevel = statement[1];\n                    inTopLevel = true;\n                    decorateTopLevelElement(toplevel, symbols, attrs, newStatements);\n                } else {\n                    if (inTopLevel) {\n                        if (WireFormat.Statements.isFlushElement(statement)) {\n                            inTopLevel = false;\n                        } else if (WireFormat.Statements.isModifier(statement)) {\n                            throw Error(`Found modifier \"${statement[1]}\" on the top-level element of \"${componentName}\"\\. Modifiers cannot be on the top-level element`);\n                        }\n                    }\n                    newStatements.push(statement);\n                }\n            }\n        }\n        newStatements.push([Ops.ClientSideStatement, ClientSide.Ops.DidRenderLayout]);\n        return new CompilableTemplate(newStatements, symbolTable);\n    }\n}\nfunction addFallback(statement, buffer) {\n    let [,, attrs,, block] = statement;\n    for (let i = 0; i < attrs.length; i++) {\n        buffer.push(attrs[i]);\n    }\n    buffer.push([Ops.FlushElement]);\n    if (block) {\n        let { statements } = block;\n        for (let i = 0; i < statements.length; i++) {\n            buffer.push(statements[i]);\n        }\n    }\n    buffer.push([Ops.CloseElement]);\n}\nfunction decorateTopLevelElement(tagName, symbols, attrs, buffer) {\n    let attrsSymbol = symbols.push(ATTRS_BLOCK);\n    buffer.push([Ops.ClientSideStatement, ClientSide.Ops.OpenComponentElement, tagName]);\n    buffer.push([Ops.ClientSideStatement, ClientSide.Ops.DidCreateElement]);\n    buffer.push([Ops.Yield, attrsSymbol, EMPTY_ARRAY]);\n    buffer.push(...attrs);\n}"]}