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move endsWith to core.ts

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This commit is contained in:
Vladimir Matveev 2016-07-13 17:08:57 -07:00
parent d7e17aaf76
commit 4f9a23468b
2 changed files with 11 additions and 9 deletions
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11
src/compiler/core.ts
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@ -899,6 +899,17 @@ namespace ts {
return true;
}
/* @internal */
export function startsWith(str: string, prefix: string): boolean {
return str.lastIndexOf(prefix, 0) === 0;
}
/* @internal */
export function endsWith(str: string, suffix: string): boolean {
const expectedPos = str.length - suffix.length;
return expectedPos >= 0 && str.indexOf(suffix, expectedPos) === expectedPos;
}
export function fileExtensionIs(path: string, extension: string): boolean {
return path.length > extension.length && endsWith(path, extension);
}

9
src/compiler/utilities.ts
View File

@ -3113,13 +3113,4 @@ namespace ts {
export function isParameterPropertyDeclaration(node: ParameterDeclaration): boolean {
return node.flags & NodeFlags.ParameterPropertyModifier && node.parent.kind === SyntaxKind.Constructor && isClassLike(node.parent.parent);
}
export function startsWith(str: string, prefix: string): boolean {
return str.lastIndexOf(prefix, 0) === 0;
}
export function endsWith(str: string, suffix: string): boolean {
const expectedPos = str.length - suffix.length;
return expectedPos >= 0 && str.indexOf(suffix, expectedPos) === expectedPos;
}
}