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@ -30,7 +30,6 @@ export const findStyles = path => { |
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return path.get('children').filter(isStyledJsx) |
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} |
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// We only allow constants to be used in template literals.
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// The following visitor ensures that MemberExpressions and Identifiers
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// are not in the scope of the current Method (render) or function (Component).
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export const validateExpressionVisitor = { |
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@ -69,9 +68,7 @@ export const validateExpressionVisitor = { |
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} |
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} |
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export const validateExpression = (expr, scope) => |
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expr.traverse(validateExpressionVisitor, scope) |
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// Use `validateExpressionVisitor` to determine whether the `expr`ession has dynamic values.
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export const isDynamic = (expr, scope) => { |
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try { |
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expr.traverse(validateExpressionVisitor, scope) |
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@ -121,13 +118,15 @@ export const getJSXStyleInfo = (expr, scope) => { |
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// p { color: %%styled-jsx-placeholder-${id}%%; }
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const { quasis, expressions } = node |
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const dynamic = scope && isDynamic(expr, scope) |
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const css = quasis.reduce((css, quasi, index) => { |
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return `${css}${quasi.value.cooked}${quasis.length === index + 1 |
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? '' |
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: `%%styled-jsx-placeholder-${index}%%`}` |
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}, '') |
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const hash = String(hashString(expr.getSource().slice(1, -1))) |
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const dynamic = scope ? isDynamic(expr, scope) : false |
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const css = quasis.reduce( |
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(css, quasi, index) => |
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`${css}${quasi.value.cooked}${quasis.length === index + 1 |
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? '' |
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: `%%styled-jsx-placeholder-${index}%%`}`,
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'' |
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) |
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return { |
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hash, |
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@ -167,9 +166,9 @@ export const buildJsxId = (styles, externalJsxId) => { |
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return t.stringLiteral(hashes.static.join(' ')) |
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} |
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// _JSXStyle.get([ ['1234', [props.foo, bar, fn(props)]], ... ])
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// _JSXStyle.dynamic([ ['1234', [props.foo, bar, fn(props)]], ... ])
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const dynamic = t.callExpression( |
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// Callee: _JSXStyle.get
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// Callee: _JSXStyle.dynamic
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t.memberExpression(t.identifier(STYLE_COMPONENT), t.identifier('dynamic')), |
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// Arguments
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[t.arrayExpression(hashes.dynamic)] |
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@ -179,11 +178,14 @@ export const buildJsxId = (styles, externalJsxId) => { |
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return dynamic |
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} |
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// `1234 5678 ${_JSXStyle.get([ ['1234', [props.foo, bar, fn(props)]], ... ])}`
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// `1234 5678 ${_JSXStyle.dynamic([ ['1234', [props.foo, bar, fn(props)]], ... ])}`
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return t.templateLiteral( |
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[ |
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t.templateElement( |
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{ raw: hashes.static.join(' ') + ' ', cooked: hashes.static }, |
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{ |
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raw: hashes.static.join(' ') + ' ', |
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cooked: hashes.static.join(' ') + ' ' |
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}, |
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false |
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), |
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t.templateElement({ raw: '', cooked: '' }, true) |
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@ -198,7 +200,7 @@ export const templateLiteralFromPreprocessedCss = (css, expressions) => { |
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const parts = css.split(/(?:%%styled-jsx-placeholder-(\d+)%%)/g) |
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parts.forEach((part, index) => { |
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if (index % 2 > 0) { |
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// This is necessary because after preprocessing declarations might have been alternate.
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// This is necessary because, after preprocessing, declarations might have been alterate.
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// eg. properties are auto prefixed and therefore expressions need to match.
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finalExpressions.push(expressions[part]) |
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} else { |
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Giuseppe Gurgone
7 years ago