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Merge pull request #13177 from Serabe/fix/13061
[BUGFIX release] Add mut to attributes in contextual components
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78 changes: 78 additions & 0 deletions
78
packages/ember-template-compiler/lib/plugins/transform-closure-component-attrs-into-mut.js
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Original file line number | Diff line number | Diff line change |
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function TransformClosureComponentAttrsIntoMut() { | ||
// set later within HTMLBars to the syntax package | ||
this.syntax = null; | ||
} | ||
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/** | ||
@private | ||
@method transform | ||
@param {AST} ast The AST to be transformed. | ||
*/ | ||
TransformClosureComponentAttrsIntoMut.prototype.transform = function TransformClosureComponentAttrsIntoMut_transform(ast) { | ||
let b = this.syntax.builders; | ||
let walker = new this.syntax.Walker(); | ||
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walker.visit(ast, function(node) { | ||
if (validate(node)) { | ||
processExpression(b, node); | ||
} | ||
}); | ||
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return ast; | ||
}; | ||
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function processExpression(builder, node) { | ||
processSubExpressionsInNode(builder, node); | ||
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if (isComponentClosure(node)) { | ||
mutParameters(builder, node); | ||
} | ||
} | ||
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function processSubExpressionsInNode(builder, node) { | ||
for (let i = 0; i < node.params.length; i++) { | ||
if (node.params[i].type === 'SubExpression') { | ||
processExpression(builder, node.params[i]); | ||
} | ||
} | ||
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each(node.hash.pairs, function(pair) { | ||
let { value } = pair; | ||
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if (value.type === 'SubExpression') { | ||
processExpression(builder, value); | ||
} | ||
}); | ||
} | ||
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function isComponentClosure(node) { | ||
return node.type === 'SubExpression' && node.path.original === 'component'; | ||
} | ||
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function mutParameters(builder, node) { | ||
for (let i = 1; i < node.params.length; i++) { | ||
if (node.params[i].type === 'PathExpression') { | ||
node.params[i] = builder.sexpr(builder.path('@mut'), [node.params[i]]); | ||
} | ||
} | ||
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each(node.hash.pairs, function(pair) { | ||
let { value } = pair; | ||
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if (value.type === 'PathExpression') { | ||
pair.value = builder.sexpr(builder.path('@mut'), [pair.value]); | ||
} | ||
}); | ||
} | ||
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function validate(node) { | ||
return node.type === 'BlockStatement' || node.type === 'MustacheStatement'; | ||
} | ||
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function each(list, callback) { | ||
for (var i = 0, l = list.length; i < l; i++) { | ||
callback(list[i]); | ||
} | ||
} | ||
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export default TransformClosureComponentAttrsIntoMut; |