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feat!: Throw errors on missing inputs (#7969)

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Previously generators could generate code from inputs that didn't exist and get back the empty string.  This silent failure was causing problems for diagnosing issues.  This PR changes the behaviour so that an error is thrown.

This will break generators which rely on the previous behaviour.  Several of our demo blocks needed editing to accomodate this change.

Resolves #7665
This commit is contained in:
Neil Fraser
2024-03-28 23:53:57 +01:00
committed by GitHub
parent 82972bed76
commit 5a6f22f0f3
8 changed files with 69 additions and 16 deletions
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6
core/generator.ts
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@@ -313,6 +313,9 @@ export class CodeGenerator {
throw TypeError('Expecting valid order from block: ' + block.type);
}
const targetBlock = block.getInputTargetBlock(name);
if (!targetBlock && !block.getInput(name)) {
throw ReferenceError(`Input "${name}" doesn't exist on "${block.type}"`);
}
if (!targetBlock) {
return '';
}
@@ -391,6 +394,9 @@ export class CodeGenerator {
*/
statementToCode(block: Block, name: string): string {
const targetBlock = block.getInputTargetBlock(name);
if (!targetBlock && !block.getInput(name)) {
throw ReferenceError(`Input "${name}" doesn't exist on "${block.type}"`);
}
let code = this.blockToCode(targetBlock);
// Value blocks must return code and order of operations info.
// Statement blocks must only return code.