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refactor(macro): use message descriptor for Trans
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112 changes: 112 additions & 0 deletions
112
packages/babel-plugin-lingui-macro/src/messageDescriptorUtils.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| import ICUMessageFormat, { Tokens, ParsedResult } from "./icu" | ||
| import { SourceLocation, ObjectProperty, ObjectExpression } from "@babel/types" | ||
| import { MESSAGE, ID, EXTRACT_MARK, COMMENT, CONTEXT } from "./constants" | ||
| import * as types from "@babel/types" | ||
| import { generateMessageId } from "@lingui/message-utils/generateMessageId" | ||
|
|
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| function buildICUFromTokens(tokens: Tokens) { | ||
| const messageFormat = new ICUMessageFormat() | ||
| return messageFormat.fromTokens(tokens) | ||
| } | ||
|
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| export function createMessageDescriptorFromTokens( | ||
| tokens: Tokens, | ||
| oldLoc?: SourceLocation, | ||
| defaults: { id?: string; context?: string; comment?: string } = {}, | ||
| stripNonEssentialProps = true | ||
| ) { | ||
| const { message, values, jsxElements } = buildICUFromTokens(tokens) | ||
|
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| const properties: ObjectProperty[] = [] | ||
|
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| properties.push( | ||
| defaults.id | ||
| ? createStringObjectProperty(ID, defaults.id) | ||
| : createIdProperty(message, defaults.context) | ||
| ) | ||
|
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| if (!stripNonEssentialProps) { | ||
| properties.push(createStringObjectProperty(MESSAGE, message)) | ||
|
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| if (defaults.comment) { | ||
| properties.push(createStringObjectProperty(COMMENT, defaults.comment)) | ||
| } | ||
|
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| if (defaults.context) { | ||
| properties.push(createStringObjectProperty(CONTEXT, defaults.context)) | ||
| } | ||
| } | ||
|
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| properties.push(createValuesProperty(values)) | ||
| properties.push(createComponentsProperty(jsxElements)) | ||
|
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| return createMessageDescriptor( | ||
| properties, | ||
| // preserve line numbers for extractor | ||
| oldLoc | ||
| ) | ||
| } | ||
|
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| function createIdProperty(message: string, context?: string) { | ||
| return createStringObjectProperty(ID, generateMessageId(message, context)) | ||
| } | ||
|
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| function createValuesProperty(values: ParsedResult["values"]) { | ||
| const valuesObject = Object.keys(values).map((key) => | ||
| types.objectProperty(types.identifier(key), values[key]) | ||
| ) | ||
|
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| if (!valuesObject.length) return | ||
|
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| return types.objectProperty( | ||
| types.identifier("values"), | ||
| types.objectExpression(valuesObject) | ||
| ) | ||
| } | ||
|
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| function createComponentsProperty(values: ParsedResult["jsxElements"]) { | ||
| const valuesObject = Object.keys(values).map((key) => | ||
| types.objectProperty(types.identifier(key), values[key]) | ||
| ) | ||
|
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| if (!valuesObject.length) return | ||
|
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| return types.objectProperty( | ||
| types.identifier("components"), | ||
| types.objectExpression(valuesObject) | ||
| ) | ||
| } | ||
|
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| // if (Object.keys(jsxElements).length) { | ||
| // attributes.push( | ||
| // this.types.jsxAttribute( | ||
| // this.types.jsxIdentifier("components"), | ||
| // this.types.jsxExpressionContainer( | ||
| // this.types.objectExpression( | ||
| // Object.keys(jsxElements).map((key) => | ||
| // this.types.objectProperty( | ||
| // this.types.identifier(key), | ||
| // jsxElements[key] | ||
| // ) | ||
| // ) | ||
| // ) | ||
| // ) | ||
| // ) | ||
| // ) | ||
| // } | ||
| export function createStringObjectProperty(key: string, value: string) { | ||
| return types.objectProperty(types.identifier(key), types.stringLiteral(value)) | ||
| } | ||
|
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| function createMessageDescriptor( | ||
| properties: ObjectProperty[], | ||
| oldLoc?: SourceLocation | ||
| ): ObjectExpression { | ||
| const newDescriptor = types.objectExpression(properties.filter(Boolean)) | ||
| types.addComment(newDescriptor, "leading", EXTRACT_MARK) | ||
| if (oldLoc) { | ||
| newDescriptor.loc = oldLoc | ||
| } | ||
|
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| return newDescriptor | ||
| } |