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Insert import statement from codefix #5

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Merged
merged 1 commit into from
Sep 5, 2021
Merged

Insert import statement from codefix #5

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13 changes: 13 additions & 0 deletions src/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,19 @@ function init() {

return namespaceImportPlugin.getCompletionEntryDetails(name, fileName, data.modulePath, info.project);
};

const getCodeFixesAtPosition = info.languageService.getCodeFixesAtPosition;
info.languageService.getCodeFixesAtPosition = (fileName, start, end, errorCodes, formatOptions, preferences) => {
log('getCodeFixesAtPosition', { fileName, start, end, errorCodes, formatOptions, preferences });
const original = getCodeFixesAtPosition(fileName, start, end, errorCodes, formatOptions, preferences);

const importAction = namespaceImportPlugin.getCodeFixActionByName(fileName, start, end, info);
if (importAction) {
return [importAction, ...original];
}

return original;
};
}

return { create };
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86 changes: 59 additions & 27 deletions src/lib/import.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -6,12 +6,7 @@ type PluginOptions = {
};

export function getCompletionEntries(info: ts.server.PluginCreateInfo): ts.CompletionEntry[] {
const options = info.config.options as PluginOptions;

const currentDir = info.project.getCurrentDirectory();
const filePaths = options.paths.flatMap((dirPath) => {
return info.project.readDirectory(path.resolve(currentDir, dirPath), ['.ts', '.js']);
});
const filePaths = getPathsToImport(info.config.options, info.project);

return filePaths.map((filePath) => {
const name = getFileNameWithoutExt(filePath);
Expand All @@ -36,27 +31,7 @@ export function getCompletionEntryDetails(
modulePath: string,
project: ts.server.Project,
): ts.CompletionEntryDetails {
const importPath = transformModulePath(selfPath, modulePath, project);
const text = `import * as ${name} from "${getFilePathWithoutExt(importPath)}";\n`;
const action: CodeFixAction = {
fixName: 'namespace-import',
description: text,
changes: [
{
fileName: selfPath,
textChanges: [
{
span: {
start: 0,
length: 0,
},
newText: text,
},
],
},
],
commands: [],
};
const action: CodeFixAction = getCodeFixActionFromPath(name, selfPath, modulePath, project);
return {
name: name,
kind: ScriptElementKind.alias,
Expand All @@ -66,6 +41,34 @@ export function getCompletionEntryDetails(
};
}

export function getCodeFixActionByName(
selfPath: string,
start: number,
end: number,
info: ts.server.PluginCreateInfo,
): CodeFixAction | null {
const name = info.languageService.getProgram()?.getSourceFile(selfPath)?.text.slice(start, end);
if (!name) {
return null;
}

const filePaths = getPathsToImport(info.config.options, info.project);
const modulePath = filePaths.find((filePath) => getFileNameWithoutExt(filePath) === name);
if (modulePath) {
return getCodeFixActionFromPath(name, selfPath, modulePath, info.project);
} else {
return null;
}
}

function getPathsToImport(options: PluginOptions, project: ts.server.Project): string[] {
const currentDir = project.getCurrentDirectory();

return options.paths.flatMap((dirPath) => {
return project.readDirectory(path.resolve(currentDir, dirPath), ['.ts', '.js']);
});
}

function getFileNameWithoutExt(filePath: string): string {
const ext = path.extname(filePath);
return path.basename(filePath, ext);
Expand All @@ -84,3 +87,32 @@ function transformModulePath(selfPath: string, filePath: string, project: ts.ser
return './' + path.relative(path.dirname(selfPath), filePath);
}
}

export function getCodeFixActionFromPath(
name: string,
selfPath: string,
modulePath: string,
project: ts.server.Project,
): CodeFixAction {
const importPath = transformModulePath(selfPath, modulePath, project);
const text = `import * as ${name} from "${getFilePathWithoutExt(importPath)}";\n`;
return {
fixName: 'namespace-import',
description: text,
changes: [
{
fileName: selfPath,
textChanges: [
{
span: {
start: 0,
length: 0,
},
newText: text,
},
],
},
],
commands: [],
};
}
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