Function pushGoJSONTargetedMatchSpecLines

scripts/codegen/go.ts:1668–1710

(
    lines: string[],
    rootRawExpr: string,
    spec: GoVariantMatchSpec,
    indent: string
)

}

function pushGoJSONTargetedMatchSpecLines(
    lines: string[],
    rootRawExpr: string,
    spec: GoVariantMatchSpec,
    indent: string
): string | undefined {
    const groups = groupGoJSONMatchTerms(spec);
    for (const [index, group] of groups.entries()) {
        const emitFinalReturn = index === groups.length - 1;
        const groupVarPrefix = `rawGroup${index}`;
        const groupProperties = [
            ...group.positiveTerms.map((term) => goJSONMatchPathProperty(term.path)),
            ...group.negativeProperties,
        ];
        if (group.positiveTerms.length > 0) {
            const rawExpr = pushGoJSONRequiredRawPathLines(lines, rootRawExpr, group.parentPath, indent, groupVarPrefix);
            const structVar = goJSONPathVarName(groupVarPrefix, group.parentPath);
            const fieldNames = pushGoJSONRawStructUnmarshalLines(lines, rawExpr, structVar, groupProperties, indent);
            for (const term of group.positiveTerms) {
                pushGoJSONPositiveTermLines(lines, structVar, fieldNames, term, indent, groupVarPrefix);
            }
            const finalReturn = pushGoJSONNegativePropertyLines(lines, structVar, fieldNames, group.negativeProperties, indent, emitFinalReturn);
            if (finalReturn) return finalReturn;
            continue;
        }

        if (group.parentPath.length === 0) {
            const structVar = goJSONPathVarName(groupVarPrefix, group.parentPath);
            const fieldNames = pushGoJSONRawStructUnmarshalLines(lines, rootRawExpr, structVar, groupProperties, indent);
            const finalReturn = pushGoJSONNegativePropertyLines(lines, structVar, fieldNames, group.negativeProperties, indent, emitFinalReturn);
            if (finalReturn) return finalReturn;
            continue;
        }

        pushGoJSONOptionalRawPathLines(lines, rootRawExpr, group.parentPath, indent, groupVarPrefix, (rawExpr, structVar, innerIndent) => {
            const fieldNames = pushGoJSONRawStructDeclLines(lines, structVar, groupProperties, innerIndent);
            lines.push(`${innerIndent}if err := json.Unmarshal(${rawExpr}, &${structVar}); err == nil {`);
            pushGoJSONNegativePropertyLines(lines, structVar, fieldNames, group.negativeProperties, `${innerIndent}\t`);
            lines.push(`${innerIndent}}`);
        });
    }
    return undefined;
}

function goVariantMatchFunctionLines(
    variant: GoDiscriminatedUnionVariant,