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extract default exports of code examples
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| diff --git a/dist/acorn.d.mts b/dist/acorn.d.mts | ||
| index 6ad58121195c96dab6b6c704ae0c0a31fefc2778..386631c03128490856cf493d968f187def49e2bb 100644 | ||
| --- a/dist/acorn.d.mts | ||
| +++ b/dist/acorn.d.mts | ||
| @@ -519,6 +519,9 @@ export type Declaration = | ||
| | FunctionDeclaration | ||
| | VariableDeclaration | ||
| | ClassDeclaration | ||
| +export interface JSXElement extends Node { | ||
| + type: "JSXElement" | ||
| +} | ||
|
|
||
| export type Expression = | ||
| | Identifier | ||
| @@ -547,6 +550,7 @@ export type Expression = | ||
| | ChainExpression | ||
| | ImportExpression | ||
| | ParenthesizedExpression | ||
| +| JSXElement | ||
|
|
||
| export type Pattern = | ||
| | Identifier | ||
| diff --git a/dist/acorn.d.ts b/dist/acorn.d.ts | ||
| index 6ad58121195c96dab6b6c704ae0c0a31fefc2778..b2321be5483ddcd8826086b9a22d228238f5e3bd 100644 | ||
| --- a/dist/acorn.d.ts | ||
| +++ b/dist/acorn.d.ts | ||
| @@ -520,6 +520,10 @@ export type Declaration = | ||
| | VariableDeclaration | ||
| | ClassDeclaration | ||
|
|
||
| +export interface JSXElement extends Node { | ||
| + type: "JSXElement" | ||
| +} | ||
| + | ||
| export type Expression = | ||
| | Identifier | ||
| | Literal | ||
| @@ -547,6 +551,7 @@ export type Expression = | ||
| | ChainExpression | ||
| | ImportExpression | ||
| | ParenthesizedExpression | ||
| +| JSXElement | ||
|
|
||
| export type Pattern = | ||
| | Identifier |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,3 +1,3 @@ | ||
| import { Button } from "@mittwald/flow-components/Button"; | ||
|
|
||
| <Button foo={true} />; | ||
| export default <Button foo={false} />; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,3 +1,3 @@ | ||
| import Button from "@mittwald/flow-components/Button"; | ||
|
|
||
| <Button foo={true} />; | ||
| export default <Button foo={true} />; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,5 +1,8 @@ | ||
| import defaultExampleCode from "./_examples/Simple"; | ||
| import defaultExampleCode from "./_examples/Default"; | ||
| import simpleExampleCode from "./_examples/Simple"; | ||
|
|
||
| # Hello | ||
|
|
||
| <LiveCodeEditor code={defaultExampleCode} /> | ||
|
|
||
| <LiveCodeEditor code={simpleExampleCode} /> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| import * as acorn from "acorn"; | ||
| import acornJsx from "acorn-jsx"; | ||
| import { | ||
| AnonymousFunctionDeclaration, | ||
| ExportDefaultDeclaration, | ||
| Expression, | ||
| ExpressionStatement, | ||
| FunctionDeclaration, | ||
| ReturnStatement, | ||
| } from "acorn"; | ||
|
|
||
| export default function extractDefaultExport(code: string): string { | ||
| const JSXParser = acorn.Parser.extend(acornJsx()); | ||
|
|
||
| const tree = JSXParser.parse(code, { | ||
| ecmaVersion: 14, | ||
| sourceType: "module", | ||
| }); | ||
|
|
||
| const defaultExport = tree.body.find( | ||
| (it): it is ExportDefaultDeclaration => | ||
| it.type === "ExportDefaultDeclaration", | ||
| ); | ||
|
|
||
| if ( | ||
| !defaultExport && | ||
| tree.body.some((it) => it.type === "ExpressionStatement") | ||
| ) { | ||
| return extractCode( | ||
| code, | ||
| tree.body.find( | ||
| (it): it is ExpressionStatement => it.type === "ExpressionStatement", | ||
| )!.expression as Expression, | ||
| ); | ||
| } | ||
|
|
||
| if ( | ||
| defaultExport!.declaration.type === "ArrowFunctionExpression" || | ||
| defaultExport!.declaration.type === "JSXElement" || | ||
| defaultExport!.declaration.type === "FunctionDeclaration" | ||
| ) { | ||
| return extractCode(code, defaultExport!.declaration); | ||
| } | ||
|
|
||
| console.log("after", defaultExport); | ||
|
|
||
| return "<p>Error parsing example.</p>"; | ||
| } | ||
|
|
||
| function extractCode( | ||
| code: string, | ||
| expression: Expression | FunctionDeclaration | AnonymousFunctionDeclaration, | ||
| ) { | ||
| if (expression.type === "JSXElement") { | ||
| return code.slice(expression.start, expression.end); | ||
| } | ||
| if (expression.type === "ArrowFunctionExpression") { | ||
| return code.slice(expression.start, expression.end); | ||
| } | ||
| if (expression.type === "FunctionDeclaration") { | ||
| const returnStatement = expression.body.body.find( | ||
| (it): it is ReturnStatement => it.type === "ReturnStatement", | ||
| ); | ||
| if (!returnStatement || !returnStatement.argument) { | ||
| return "<p>Error parsing example.</p>"; | ||
| } | ||
| return code.slice( | ||
| returnStatement.argument.start, | ||
| returnStatement.argument.end, | ||
| ); | ||
| } | ||
| return "<p>Error parsing example.</p>"; | ||
| } |
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