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refactor(compiler-cli): function declarations must have names (#38866) 

The `AstFactory.createFunctionDeclaration()` was allowing `null` to be
passed as the function `name` value. This is not actually possible, since
function declarations must always have a name.

PR Close #38866
This commit is contained in:
Pete Bacon Darwin 2020-09-23 09:16:30 +01:00 committed by Joey Perrott
parent 8c16330895
commit 1f5d7dc394
2 changed files with 3 additions and 3 deletions
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2
packages/compiler-cli/src/ngtsc/translator/src/api/ast_factory.ts
View File

@ -97,7 +97,7 @@ export interface AstFactory<TStatement, TExpression> {
* @param parameters the names of the function's parameters.
* @param body a statement (or a block of statements) that are the body of the function.
*/
createFunctionDeclaration(functionName: string|null, parameters: string[], body: TStatement):
createFunctionDeclaration(functionName: string, parameters: string[], body: TStatement):
TStatement;
/**

4
packages/compiler-cli/src/ngtsc/translator/src/typescript_ast_factory.ts
View File

@ -79,13 +79,13 @@ export class TypeScriptAstFactory implements AstFactory<ts.Statement, ts.Express
createExpressionStatement = ts.createExpressionStatement;
createFunctionDeclaration(functionName: string|null, parameters: string[], body: ts.Statement):
createFunctionDeclaration(functionName: string, parameters: string[], body: ts.Statement):
ts.Statement {
if (!ts.isBlock(body)) {
throw new Error(`Invalid syntax, expected a block, but got ${ts.SyntaxKind[body.kind]}.`);
}
return ts.createFunctionDeclaration(
undefined, undefined, undefined, functionName ?? undefined, undefined,
undefined, undefined, undefined, functionName, undefined,
parameters.map(param => ts.createParameter(undefined, undefined, undefined, param)),
undefined, body);
}