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Importer.ts
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Importer.ts
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import * as vscode from 'vscode'
import * as path from 'path';
import {TypeScriptImporter} from './TypeScriptImporter';
import {Symbol} from './ImportIndex';
export class Importer {
private spacesBetweenBraces: boolean;
private doubleQuotes: boolean;
private preferRelative: boolean;
constructor( private importer: TypeScriptImporter )
{
this.loadConfig();
}
public loadConfig(): void {
this.spacesBetweenBraces = this.importer.conf<boolean>('spaceBetweenBraces', true);
this.doubleQuotes = this.importer.conf<boolean>( 'doubleQuotes', false );
this.preferRelative = this.importer.conf<boolean>( 'preferRelative', false );
}
public importSymbol( document: vscode.TextDocument, symbol: Symbol): void
{
let module = this.resolveModule( document, symbol );
var importRegExp = /\bimport\s+(?:({?)\s*(.+?)\s*}?\s+from\s+)?[\'"]([^"\']+)["\']\s*;?/g;
let currentDoc = document.getText();
var matches: string[];
var lastImport: vscode.Position = null;
let edit: vscode.WorkspaceEdit;
while( ( matches = importRegExp.exec( currentDoc ) ) )
{
lastImport = document.positionAt( currentDoc.indexOf( matches[0] ) );
var isDefault = matches[1] != "{";
if( matches[3] == module && symbol.isDefault == isDefault )
{
let symbols = matches[2].split( /\s*,\s*/g );
let symbolName = symbol.asDefinition ? symbol.asDefinition : symbol.name;
if( symbols.indexOf( symbolName ) < 0 )
symbols.push( symbolName );
if( ( symbol.isDefault || isDefault ) && symbols.length > 1 )
continue;
edit = new vscode.WorkspaceEdit();
edit.replace(
document.uri,
new vscode.Range(lastImport.line, lastImport.character, lastImport.line, lastImport.character + matches[0].length),
this.createImportStatement( this.createImportDefinition( symbols.join(', '), isDefault ), module, false )
);
break;
}
}
if( !edit )
{
edit = new vscode.WorkspaceEdit();
edit.insert(
document.uri,
new vscode.Position( lastImport ? lastImport.line + 1 : 0, 0),
this.createImportStatement( this.createImportDefinition( symbol.asDefinition ? symbol.asDefinition : symbol.name, symbol.isDefault ), module, true )
);
}
vscode.workspace.applyEdit(edit);
}
public createImportDefinition( definitions: string, skipBrakets: boolean = false ): string
{
var definition = skipBrakets ? '' : '{';
if (this.spacesBetweenBraces && skipBrakets == false)
definition += ' ';
definition += definitions;
if (this.spacesBetweenBraces && skipBrakets == false)
definition += ' ';
definition += skipBrakets ? '' : '}';
return definition;
}
public createImportStatement( definition: string, module: string, endline: boolean = false): string
{
let q = this.doubleQuotes ? '"' : "'";
let NL = endline ? '\n' : '';
let importStatement = 'import ' + definition + ' from ' + q + module + q + ( this.importer.emitSemicolon ? ";" : "" )+ NL;
return importStatement;
}
public resolveModule(document: vscode.TextDocument, symbol: Symbol): string
{
if( symbol.module ) {
if( this.preferRelative ) {
let rel = this.resolveRelativeModule( document, symbol );
if( rel.length <= symbol.module.length )
return rel;
}
return symbol.module;
}
else
return this.resolveRelativeModule( document, symbol );
}
public resolveRelativeModule( document: vscode.TextDocument, symbol: Symbol ): string
{
var moduleParts = path.relative( path.dirname( document.fileName ), symbol.path ).split( /[\\/]/ );
if( moduleParts[0] !== '.' && moduleParts[0] !== '..' )
moduleParts.splice( 0, 0, '.' );
var fileIdx = moduleParts.length - 1;
moduleParts[fileIdx] = this.importer.removeFileExtension( moduleParts[fileIdx] );
return moduleParts.join( "/" );
}
}