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107 changes: 107 additions & 0 deletions
107
packages/ember-template-compiler/lib/plugins/transform-dot-component-invocation.js
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| @@ -0,0 +1,107 @@ | ||
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| /** | ||
| Transforms dot invocation of closure components to be wrapped | ||
| with the component helper. This allows for a more static invocation | ||
| of the component. | ||
| ```handlebars | ||
| {{#my-component as |comps|}} | ||
| {{comp.dropdown isOpen=false}} | ||
| {{/my-component}} | ||
| ``` | ||
| with | ||
| ```handlebars | ||
| {{#my-component as |comps|}} | ||
| {{component comp.dropdown isOpen=false}} | ||
| {{/my-component}} | ||
| ``` | ||
| and | ||
| ```handlebars | ||
| {{#my-component as |comps|}} | ||
| {{comp.dropdown isOpen}} | ||
| {{/my-component}} | ||
| ``` | ||
| with | ||
| ```handlebars | ||
| {{#my-component as |comps|}} | ||
| {{component comp.dropdown isOpen}} | ||
| {{/my-component}} | ||
| ``` | ||
| and | ||
| ```handlebars | ||
| {{#my-component as |comps|}} | ||
| {{#comp.dropdown}}Open{{/comp.dropdown}} | ||
| {{/my-component}} | ||
| ``` | ||
| with | ||
| ```handlebars | ||
| {{#my-component as |comps|}} | ||
| {{#component comp.dropdown}}Open{{/component}} | ||
| {{/my-component}} | ||
| ``` | ||
| @private | ||
| @class TransFormDotComponentInvocation | ||
| */ | ||
| export default class TransFormDotComponentInvocation { | ||
|
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| _isMulipartPath(path) { | ||
| return path.parts.length > 1; | ||
| } | ||
|
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| _isInlineInvocation(path, params, hash) { | ||
| if (this._isMulipartPath(path)) { | ||
| if (params.length > 0 || hash.pairs.length > 0) { | ||
| return true; | ||
| } | ||
| } | ||
|
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| return false; | ||
| } | ||
|
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| _wrapInComponent(node, builder) { | ||
| let component = node.path; | ||
| let componentHelper = builder.path('component'); | ||
| node.path = componentHelper; | ||
| node.params.unshift(component); | ||
| } | ||
|
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| transform(ast) { | ||
| let { traverse, builders: b } = this.syntax; | ||
|
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| traverse(ast, { | ||
| BlockStatement: (node) => { | ||
| node.program.body = node.program.body.map((_node) => { | ||
| switch(_node.type) { | ||
| case 'MustacheStatement': | ||
| if (this._isInlineInvocation(_node.path, _node.params, _node.hash)) { | ||
| this._wrapInComponent(_node, b); | ||
| } | ||
| break; | ||
| case 'BlockStatement': | ||
| if (this._isMulipartPath(_node.path)) { | ||
| this._wrapInComponent(_node, b) | ||
| } | ||
| break; | ||
| } | ||
|
|
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| return _node; | ||
| }); | ||
|
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| return node; | ||
| } | ||
| }); | ||
|
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| return ast; | ||
| } | ||
| } | ||
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